* sandy bridge kswapd0 livelock with pagecache
@ 2011-06-21 9:53 Pádraig Brady
2011-06-21 10:39 ` Mel Gorman
0 siblings, 1 reply; 21+ messages in thread
From: Pádraig Brady @ 2011-06-21 9:53 UTC (permalink / raw)
To: linux-mm, mgorman
I tried the 2 patches here to no avail:
http://marc.info/?l=linux-mm&m=130503811704830&w=2
I originally logged this at:
https://bugzilla.redhat.com/show_bug.cgi?id=712019
I can compile up and quickly test any suggestions.
cheers,
PA!draig.
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 9:53 sandy bridge kswapd0 livelock with pagecache Pádraig Brady
@ 2011-06-21 10:39 ` Mel Gorman
2011-06-21 10:47 ` Pádraig Brady
0 siblings, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-21 10:39 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
> I tried the 2 patches here to no avail:
> http://marc.info/?l=linux-mm&m=130503811704830&w=2
>
> I originally logged this at:
> https://bugzilla.redhat.com/show_bug.cgi?id=712019
>
> I can compile up and quickly test any suggestions.
>
I recently looked through what kswapd does and there are a number
of problem areas. Unfortunately, I haven't gotten around to doing
anything about it yet or running the test cases to see if they are
really problems. In your case, the following is a strong possibility
though. This should be applied on top of the two patches merged from
that thread.
This is not tested in any way, based on 3.0-rc3
==== CUT HERE ====
mm: vmscan: Stop looping in kswapd if high-order reclaim is failing
A number of people have identified a problem whereby kswapd consumes
99% of CPU in a tight loop. It was determined that there are constant
sources of high-order allocations but in the event the allocations are
failing, kswapd continues to consume CPU and reclaim too much memory.
kswapd can and does give up costly high-order reclaim but only if it is
failing to make forward progress. This patch tracks how much memory
kswapd has reclaimed. If it reclaims 4 times the size of the allocation
request, it resets to order-0, balance for that order and will go to
sleep unless there has been continued allocation requests. "4 times" is
a tad arbitrary but it's down to
(1<<PAGE_ALLOC_COSTLY_ORDER)*4 == SWAP_CLUSTER_MAX
which is the "standard" unit of reclaim kswapd works on so scale it
similarily for the higher orders.
Not signed off by as it is barely a prototype
---
mm/vmscan.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index faa0a08..8fb262f 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2376,6 +2376,7 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
int i;
int end_zone = 0; /* Inclusive. 0 = ZONE_DMA */
unsigned long total_scanned;
+ unsigned long total_reclaimed;
struct reclaim_state *reclaim_state = current->reclaim_state;
unsigned long nr_soft_reclaimed;
unsigned long nr_soft_scanned;
@@ -2397,6 +2398,7 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
};
loop_again:
total_scanned = 0;
+ total_reclaimed = 0;
sc.nr_reclaimed = 0;
sc.may_writepage = !laptop_mode;
count_vm_event(PAGEOUTRUN);
@@ -2564,6 +2566,7 @@ loop_again:
break;
}
out:
+ total_reclaimed += sc.nr_reclaimed;
/*
* order-0: All zones must meet high watermark for a balanced node
@@ -2584,12 +2587,18 @@ out:
* little point trying all over again as kswapd may
* infinite loop.
*
+ * Similarly, if we have reclaimed far more pages than the
+ * original request size, it's likely that contiguous reclaim
+ * is not finding the pages it needs and it should give
+ * up.
+ *
* Instead, recheck all watermarks at order-0 as they
* are the most important. If watermarks are ok, kswapd will go
* back to sleep. High-order users can still perform direct
* reclaim if they wish.
*/
- if (sc.nr_reclaimed < SWAP_CLUSTER_MAX)
+ if (sc.nr_reclaimed < SWAP_CLUSTER_MAX ||
+ (order > PAGE_ALLOC_COSTLY_ORDER && total_reclaimed > (4UL << order)) )
order = sc.order = 0;
goto loop_again;
--
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^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 10:39 ` Mel Gorman
@ 2011-06-21 10:47 ` Pádraig Brady
2011-06-21 11:34 ` Mel Gorman
0 siblings, 1 reply; 21+ messages in thread
From: Pádraig Brady @ 2011-06-21 10:47 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
On 21/06/11 11:39, Mel Gorman wrote:
> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
>> I tried the 2 patches here to no avail:
>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
>>
>> I originally logged this at:
>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
>>
>> I can compile up and quickly test any suggestions.
>>
>
> I recently looked through what kswapd does and there are a number
> of problem areas. Unfortunately, I haven't gotten around to doing
> anything about it yet or running the test cases to see if they are
> really problems. In your case, the following is a strong possibility
> though. This should be applied on top of the two patches merged from
> that thread.
>
> This is not tested in any way, based on 3.0-rc3
This does not fix the issue here.
cheers,
Padraig.
--
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 10:47 ` Pádraig Brady
@ 2011-06-21 11:34 ` Mel Gorman
2011-06-21 11:59 ` Pádraig Brady
0 siblings, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-21 11:34 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
> On 21/06/11 11:39, Mel Gorman wrote:
> > On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
> >> I tried the 2 patches here to no avail:
> >> http://marc.info/?l=linux-mm&m=130503811704830&w=2
> >>
> >> I originally logged this at:
> >> https://bugzilla.redhat.com/show_bug.cgi?id=712019
> >>
> >> I can compile up and quickly test any suggestions.
> >>
> >
> > I recently looked through what kswapd does and there are a number
> > of problem areas. Unfortunately, I haven't gotten around to doing
> > anything about it yet or running the test cases to see if they are
> > really problems. In your case, the following is a strong possibility
> > though. This should be applied on top of the two patches merged from
> > that thread.
> >
> > This is not tested in any way, based on 3.0-rc3
>
> This does not fix the issue here.
>
I made a silly mistake here. When you mentioned two patches applied,
I assumed you meant two patches that were finally merged from that
discussion thread instead of looking at your linked mail. Now that I
have checked, I think you applied the SLUB patches while the patches
I was thinking of are;
[afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
[f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
The first one in particular has been reported by another user to fix
hangs related to copying large files. I'm assuming you are testing
against the Fedora kernel. As these patches were merged for 3.0-rc1, can
you check if applying just these two patches to your kernel helps?
--
Mel Gorman
SUSE Labs
--
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 11:34 ` Mel Gorman
@ 2011-06-21 11:59 ` Pádraig Brady
2011-06-21 13:07 ` Mel Gorman
2011-06-21 14:34 ` Mel Gorman
0 siblings, 2 replies; 21+ messages in thread
From: Pádraig Brady @ 2011-06-21 11:59 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
On 21/06/11 12:34, Mel Gorman wrote:
> On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
>> On 21/06/11 11:39, Mel Gorman wrote:
>>> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
>>>> I tried the 2 patches here to no avail:
>>>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
>>>>
>>>> I originally logged this at:
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
>>>>
>>>> I can compile up and quickly test any suggestions.
>>>>
>>>
>>> I recently looked through what kswapd does and there are a number
>>> of problem areas. Unfortunately, I haven't gotten around to doing
>>> anything about it yet or running the test cases to see if they are
>>> really problems. In your case, the following is a strong possibility
>>> though. This should be applied on top of the two patches merged from
>>> that thread.
>>>
>>> This is not tested in any way, based on 3.0-rc3
>>
>> This does not fix the issue here.
>>
>
> I made a silly mistake here. When you mentioned two patches applied,
> I assumed you meant two patches that were finally merged from that
> discussion thread instead of looking at your linked mail. Now that I
> have checked, I think you applied the SLUB patches while the patches
> I was thinking of are;
>
> [afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
> [f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
>
> The first one in particular has been reported by another user to fix
> hangs related to copying large files. I'm assuming you are testing
> against the Fedora kernel. As these patches were merged for 3.0-rc1, can
> you check if applying just these two patches to your kernel helps?
These patches are already present in my 2.6.38.8-32.fc15.x86_64 kernel :(
cheers,
Padraig.
--
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 11:59 ` Pádraig Brady
@ 2011-06-21 13:07 ` Mel Gorman
2011-06-21 14:23 ` Pádraig Brady
2011-06-21 14:34 ` Mel Gorman
1 sibling, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-21 13:07 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Tue, Jun 21, 2011 at 12:59:00PM +0100, P?draig Brady wrote:
> On 21/06/11 12:34, Mel Gorman wrote:
> > On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
> >> On 21/06/11 11:39, Mel Gorman wrote:
> >>> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
> >>>> I tried the 2 patches here to no avail:
> >>>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
> >>>>
> >>>> I originally logged this at:
> >>>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
> >>>>
> >>>> I can compile up and quickly test any suggestions.
> >>>>
> >>>
> >>> I recently looked through what kswapd does and there are a number
> >>> of problem areas. Unfortunately, I haven't gotten around to doing
> >>> anything about it yet or running the test cases to see if they are
> >>> really problems. In your case, the following is a strong possibility
> >>> though. This should be applied on top of the two patches merged from
> >>> that thread.
> >>>
> >>> This is not tested in any way, based on 3.0-rc3
> >>
> >> This does not fix the issue here.
> >>
> >
> > I made a silly mistake here. When you mentioned two patches applied,
> > I assumed you meant two patches that were finally merged from that
> > discussion thread instead of looking at your linked mail. Now that I
> > have checked, I think you applied the SLUB patches while the patches
> > I was thinking of are;
> >
> > [afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
> > [f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
> >
> > The first one in particular has been reported by another user to fix
> > hangs related to copying large files. I'm assuming you are testing
> > against the Fedora kernel. As these patches were merged for 3.0-rc1, can
> > you check if applying just these two patches to your kernel helps?
>
> These patches are already present in my 2.6.38.8-32.fc15.x86_64 kernel :(
>
Would it be possible to record a profile while it is livelocked to check
if it's stuck in this loop in shrink_slab()?
while (total_scan >= SHRINK_BATCH) {
long this_scan = SHRINK_BATCH;
int shrink_ret;
int nr_before;
nr_before = do_shrinker_shrink(shrinker, shrink, 0);
shrink_ret = do_shrinker_shrink(shrinker, shrink,
this_scan);
if (shrink_ret == -1)
break;
if (shrink_ret < nr_before)
ret += nr_before - shrink_ret;
count_vm_events(SLABS_SCANNED, this_scan);
total_scan -= this_scan;
cond_resched();
}
Also, can you post the output of sysrq+m at a few different times while
kswapd is spinning heavily? I want to see if all_unreclaimable has been
set on zones with a reasonable amount of memory. If they are, it's
possible for kswapd to be in a continual loop calling shrink_slab() and
skipping over normal page reclaim because all_unreclaimable is set
everywhere until a page is freed.
--
Mel Gorman
SUSE Labs
--
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 13:07 ` Mel Gorman
@ 2011-06-21 14:23 ` Pádraig Brady
2011-06-22 9:44 ` Mel Gorman
2011-06-24 6:33 ` Shaohua Li
0 siblings, 2 replies; 21+ messages in thread
From: Pádraig Brady @ 2011-06-21 14:23 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
[-- Attachment #1: Type: text/plain, Size: 3679 bytes --]
On 21/06/11 14:07, Mel Gorman wrote:
> On Tue, Jun 21, 2011 at 12:59:00PM +0100, P?draig Brady wrote:
>> On 21/06/11 12:34, Mel Gorman wrote:
>>> On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
>>>> On 21/06/11 11:39, Mel Gorman wrote:
>>>>> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
>>>>>> I tried the 2 patches here to no avail:
>>>>>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
>>>>>>
>>>>>> I originally logged this at:
>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
>>>>>>
>>>>>> I can compile up and quickly test any suggestions.
>>>>>>
>>>>>
>>>>> I recently looked through what kswapd does and there are a number
>>>>> of problem areas. Unfortunately, I haven't gotten around to doing
>>>>> anything about it yet or running the test cases to see if they are
>>>>> really problems. In your case, the following is a strong possibility
>>>>> though. This should be applied on top of the two patches merged from
>>>>> that thread.
>>>>>
>>>>> This is not tested in any way, based on 3.0-rc3
>>>>
>>>> This does not fix the issue here.
>>>>
>>>
>>> I made a silly mistake here. When you mentioned two patches applied,
>>> I assumed you meant two patches that were finally merged from that
>>> discussion thread instead of looking at your linked mail. Now that I
>>> have checked, I think you applied the SLUB patches while the patches
>>> I was thinking of are;
>>>
>>> [afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
>>> [f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
>>>
>>> The first one in particular has been reported by another user to fix
>>> hangs related to copying large files. I'm assuming you are testing
>>> against the Fedora kernel. As these patches were merged for 3.0-rc1, can
>>> you check if applying just these two patches to your kernel helps?
>>
>> These patches are already present in my 2.6.38.8-32.fc15.x86_64 kernel :(
>>
>
> Would it be possible to record a profile while it is livelocked to check
> if it's stuck in this loop in shrink_slab()?
I did:
perf record -a -g sleep 10
perf report --stdio > livelock.perf #attached
perf annotate shrink_slab -k rpmbuild/BUILD/kernel-2.6.38.fc15/linux-2.6.38.x86_64/vmlinux > shrink_slab.annotate #attached
>
> while (total_scan >= SHRINK_BATCH) {
> long this_scan = SHRINK_BATCH;
> int shrink_ret;
> int nr_before;
>
> nr_before = do_shrinker_shrink(shrinker, shrink, 0);
> shrink_ret = do_shrinker_shrink(shrinker, shrink,
> this_scan);
> if (shrink_ret == -1)
> break;
> if (shrink_ret < nr_before)
> ret += nr_before - shrink_ret;
> count_vm_events(SLABS_SCANNED, this_scan);
> total_scan -= this_scan;
>
> cond_resched();
> }
shrink_slab() looks to be the culprit, but it seems
to be the loop outside the above that is spinning.
> Also, can you post the output of sysrq+m at a few different times while
> kswapd is spinning heavily? I want to see if all_unreclaimable has been
> set on zones with a reasonable amount of memory. If they are, it's
> possible for kswapd to be in a continual loop calling shrink_slab() and
> skipping over normal page reclaim because all_unreclaimable is set
> everywhere until a page is freed.
I did that 3 times. Attached.
cheers,
Padraig.
[-- Attachment #2: shrink_slab.annotate --]
[-- Type: text/plain, Size: 17435 bytes --]
------------------------------------------------
Percent | Source code & Disassembly of vmlinux
------------------------------------------------
:
:
:
: Disassembly of section .text:
:
: ffffffff810e4460 <shrink_slab>:
: *
: * Returns the number of slab objects which we shrunk.
: */
: unsigned long shrink_slab(unsigned long scanned, gfp_t gfp_mask,
: unsigned long lru_pages)
: {
0.00 : ffffffff810e4460: 55 push %rbp
0.27 : ffffffff810e4461: 48 89 e5 mov %rsp,%rbp
0.00 : ffffffff810e4464: 41 57 push %r15
0.00 : ffffffff810e4466: 41 56 push %r14
0.36 : ffffffff810e4468: 41 55 push %r13
0.00 : ffffffff810e446a: 41 54 push %r12
0.00 : ffffffff810e446c: 53 push %rbx
0.00 : ffffffff810e446d: 48 83 ec 18 sub $0x18,%rsp
0.45 : ffffffff810e4471: e8 8a 54 f2 ff callq ffffffff81009900 <mcount>
: struct shrinker *shrinker;
: unsigned long ret = 0;
:
: if (scanned == 0)
: scanned = SWAP_CLUSTER_MAX;
0.00 : ffffffff810e4476: b8 20 00 00 00 mov $0x20,%eax
:
: if (!down_read_trylock(&shrinker_rwsem)) {
: /* Assume we'll be able to shrink next time */
: ret = 1;
0.00 : ffffffff810e447b: 41 bc 01 00 00 00 mov $0x1,%r12d
: {
: struct shrinker *shrinker;
: unsigned long ret = 0;
:
: if (scanned == 0)
: scanned = SWAP_CLUSTER_MAX;
0.09 : ffffffff810e4481: 48 85 ff test %rdi,%rdi
: *
: * Returns the number of slab objects which we shrunk.
: */
: unsigned long shrink_slab(unsigned long scanned, gfp_t gfp_mask,
: unsigned long lru_pages)
: {
0.00 : ffffffff810e4484: 49 89 fd mov %rdi,%r13
: unsigned long ret = 0;
:
: if (scanned == 0)
: scanned = SWAP_CLUSTER_MAX;
:
: if (!down_read_trylock(&shrinker_rwsem)) {
0.00 : ffffffff810e4487: 48 c7 c7 30 16 a3 81 mov $0xffffffff81a31630,%rdi
: {
: struct shrinker *shrinker;
: unsigned long ret = 0;
:
: if (scanned == 0)
: scanned = SWAP_CLUSTER_MAX;
0.00 : ffffffff810e448e: 4c 0f 44 e8 cmove %rax,%r13
: *
: * Returns the number of slab objects which we shrunk.
: */
: unsigned long shrink_slab(unsigned long scanned, gfp_t gfp_mask,
: unsigned long lru_pages)
: {
0.27 : ffffffff810e4492: 41 89 f6 mov %esi,%r14d
0.00 : ffffffff810e4495: 49 89 d7 mov %rdx,%r15
: unsigned long ret = 0;
:
: if (scanned == 0)
: scanned = SWAP_CLUSTER_MAX;
:
: if (!down_read_trylock(&shrinker_rwsem)) {
0.00 : ffffffff810e4498: e8 07 e7 f8 ff callq ffffffff81072ba4 <down_read_trylock>
0.00 : ffffffff810e449d: 85 c0 test %eax,%eax
0.00 : ffffffff810e449f: 0f 84 0f 01 00 00 je ffffffff810e45b4 <shrink_slab+0x154>
: /* Assume we'll be able to shrink next time */
: ret = 1;
: goto out;
: }
:
: list_for_each_entry(shrinker, &shrinker_list, list) {
0.00 : ffffffff810e44a5: 48 8b 1d a4 d1 94 00 mov 0x94d1a4(%rip),%rbx # ffffffff81a31650 <shrinker_list>
: unsigned long long delta;
: unsigned long total_scan;
: unsigned long max_pass;
:
: max_pass = (*shrinker->shrink)(shrinker, 0, gfp_mask);
: delta = (4 * scanned) / shrinker->seeks;
0.71 : ffffffff810e44ac: 49 c1 e5 02 shl $0x2,%r13
: */
: unsigned long shrink_slab(unsigned long scanned, gfp_t gfp_mask,
: unsigned long lru_pages)
: {
: struct shrinker *shrinker;
: unsigned long ret = 0;
0.00 : ffffffff810e44b0: 45 30 e4 xor %r12b,%r12b
: unsigned long long delta;
: unsigned long total_scan;
: unsigned long max_pass;
:
: max_pass = (*shrinker->shrink)(shrinker, 0, gfp_mask);
: delta = (4 * scanned) / shrinker->seeks;
0.00 : ffffffff810e44b3: 4c 89 6d c8 mov %r13,-0x38(%rbp)
: delta *= max_pass;
: do_div(delta, lru_pages + 1);
0.00 : ffffffff810e44b7: 41 ff c7 inc %r15d
: /* Assume we'll be able to shrink next time */
: ret = 1;
: goto out;
: }
:
: list_for_each_entry(shrinker, &shrinker_list, list) {
0.18 : ffffffff810e44ba: 48 83 eb 10 sub $0x10,%rbx
0.00 : ffffffff810e44be: e9 ce 00 00 00 jmpq ffffffff810e4591 <shrink_slab+0x131>
: unsigned long long delta;
: unsigned long total_scan;
: unsigned long max_pass;
:
: max_pass = (*shrinker->shrink)(shrinker, 0, gfp_mask);
0.00 : ffffffff810e44c3: 44 89 f2 mov %r14d,%edx
0.00 : ffffffff810e44c6: 31 f6 xor %esi,%esi
1.69 : ffffffff810e44c8: 48 89 df mov %rbx,%rdi
0.00 : ffffffff810e44cb: ff 13 callq *(%rbx)
: delta = (4 * scanned) / shrinker->seeks;
0.62 : ffffffff810e44cd: 48 63 4b 08 movslq 0x8(%rbx),%rcx
: list_for_each_entry(shrinker, &shrinker_list, list) {
: unsigned long long delta;
: unsigned long total_scan;
: unsigned long max_pass;
:
: max_pass = (*shrinker->shrink)(shrinker, 0, gfp_mask);
0.71 : ffffffff810e44d1: 4c 63 e8 movslq %eax,%r13
: delta = (4 * scanned) / shrinker->seeks;
0.09 : ffffffff810e44d4: 48 8b 45 c8 mov -0x38(%rbp),%rax
0.36 : ffffffff810e44d8: 31 d2 xor %edx,%edx
0.36 : ffffffff810e44da: 48 f7 f1 div %rcx
: delta *= max_pass;
: do_div(delta, lru_pages + 1);
30.21 : ffffffff810e44dd: 31 d2 xor %edx,%edx
: unsigned long total_scan;
: unsigned long max_pass;
:
: max_pass = (*shrinker->shrink)(shrinker, 0, gfp_mask);
: delta = (4 * scanned) / shrinker->seeks;
: delta *= max_pass;
0.00 : ffffffff810e44df: 49 0f af c5 imul %r13,%rax
: do_div(delta, lru_pages + 1);
4.01 : ffffffff810e44e3: 49 f7 f7 div %r15
: shrinker->nr += delta;
42.16 : ffffffff810e44e6: 48 03 43 20 add 0x20(%rbx),%rax
: if (shrinker->nr < 0) {
1.34 : ffffffff810e44ea: 48 85 c0 test %rax,%rax
:
: max_pass = (*shrinker->shrink)(shrinker, 0, gfp_mask);
: delta = (4 * scanned) / shrinker->seeks;
: delta *= max_pass;
: do_div(delta, lru_pages + 1);
: shrinker->nr += delta;
2.23 : ffffffff810e44ed: 48 89 43 20 mov %rax,0x20(%rbx)
: if (shrinker->nr < 0) {
0.00 : ffffffff810e44f1: 79 18 jns ffffffff810e450b <shrink_slab+0xab>
: printk(KERN_ERR "shrink_slab: %pF negative objects to "
0.00 : ffffffff810e44f3: 48 8b 33 mov (%rbx),%rsi
0.00 : ffffffff810e44f6: 48 89 c2 mov %rax,%rdx
0.00 : ffffffff810e44f9: 48 c7 c7 c2 d7 7a 81 mov $0xffffffff817ad7c2,%rdi
0.00 : ffffffff810e4500: 31 c0 xor %eax,%eax
0.00 : ffffffff810e4502: e8 db 85 38 00 callq ffffffff8146cae2 <printk>
: "delete nr=%ld\n",
: shrinker->shrink, shrinker->nr);
: shrinker->nr = max_pass;
0.00 : ffffffff810e4507: 4c 89 6b 20 mov %r13,0x20(%rbx)
: /*
: * Avoid risking looping forever due to too large nr value:
: * never try to free more than twice the estimate number of
: * freeable entries.
: */
: if (shrinker->nr > max_pass * 2)
1.87 : ffffffff810e450b: 4d 01 ed add %r13,%r13
0.00 : ffffffff810e450e: 4c 39 6b 20 cmp %r13,0x20(%rbx)
0.00 : ffffffff810e4512: 76 04 jbe ffffffff810e4518 <shrink_slab+0xb8>
: shrinker->nr = max_pass * 2;
0.00 : ffffffff810e4514: 4c 89 6b 20 mov %r13,0x20(%rbx)
:
: total_scan = shrinker->nr;
6.77 : ffffffff810e4518: 4c 8b 6b 20 mov 0x20(%rbx),%r13
: shrinker->nr = 0;
0.00 : ffffffff810e451c: 48 c7 43 20 00 00 00 movq $0x0,0x20(%rbx)
0.00 : ffffffff810e4523: 00
:
: while (total_scan >= SHRINK_BATCH) {
0.00 : ffffffff810e4524: eb 59 jmp ffffffff810e457f <shrink_slab+0x11f>
: long this_scan = SHRINK_BATCH;
: int shrink_ret;
: int nr_before;
:
: nr_before = (*shrinker->shrink)(shrinker, 0, gfp_mask);
0.00 : ffffffff810e4526: 31 f6 xor %esi,%esi
0.00 : ffffffff810e4528: 44 89 f2 mov %r14d,%edx
0.00 : ffffffff810e452b: 48 89 df mov %rbx,%rdi
0.00 : ffffffff810e452e: ff 13 callq *(%rbx)
: shrink_ret = (*shrinker->shrink)(shrinker, this_scan,
0.00 : ffffffff810e4530: 44 89 f2 mov %r14d,%edx
0.00 : ffffffff810e4533: be 80 00 00 00 mov $0x80,%esi
0.00 : ffffffff810e4538: 48 89 df mov %rbx,%rdi
0.00 : ffffffff810e453b: 89 45 c0 mov %eax,-0x40(%rbp)
0.00 : ffffffff810e453e: ff 13 callq *(%rbx)
: gfp_mask);
: if (shrink_ret == -1)
0.00 : ffffffff810e4540: 83 f8 ff cmp $0xffffffff,%eax
0.00 : ffffffff810e4543: 8b 4d c0 mov -0x40(%rbp),%ecx
0.00 : ffffffff810e4546: 74 3d je ffffffff810e4585 <shrink_slab+0x125>
: break;
: if (shrink_ret < nr_before)
0.00 : ffffffff810e4548: 39 c8 cmp %ecx,%eax
0.00 : ffffffff810e454a: 7d 08 jge ffffffff810e4554 <shrink_slab+0xf4>
: ret += nr_before - shrink_ret;
0.00 : ffffffff810e454c: 29 c1 sub %eax,%ecx
0.00 : ffffffff810e454e: 48 63 c9 movslq %ecx,%rcx
0.00 : ffffffff810e4551: 49 01 cc add %rcx,%r12
: count_vm_events(SLABS_SCANNED, this_scan);
0.00 : ffffffff810e4554: be 80 00 00 00 mov $0x80,%esi
0.00 : ffffffff810e4559: bf 1f 00 00 00 mov $0x1f,%edi
: total_scan -= this_scan;
0.00 : ffffffff810e455e: 49 83 c5 80 add $0xffffffffffffff80,%r13
: gfp_mask);
: if (shrink_ret == -1)
: break;
: if (shrink_ret < nr_before)
: ret += nr_before - shrink_ret;
: count_vm_events(SLABS_SCANNED, this_scan);
0.00 : ffffffff810e4562: e8 d5 f2 ff ff callq ffffffff810e383c <count_vm_events>
: total_scan -= this_scan;
:
: cond_resched();
0.00 : ffffffff810e4567: 31 d2 xor %edx,%edx
0.00 : ffffffff810e4569: be 1a 01 00 00 mov $0x11a,%esi
0.00 : ffffffff810e456e: 48 c7 c7 1c d7 7a 81 mov $0xffffffff817ad71c,%rdi
0.00 : ffffffff810e4575: e8 ce 36 f6 ff callq ffffffff81047c48 <__might_sleep>
0.00 : ffffffff810e457a: e8 6b 01 39 00 callq ffffffff814746ea <_cond_resched>
: shrinker->nr = max_pass * 2;
:
: total_scan = shrinker->nr;
: shrinker->nr = 0;
:
: while (total_scan >= SHRINK_BATCH) {
1.43 : ffffffff810e457f: 49 83 fd 7f cmp $0x7f,%r13
0.00 : ffffffff810e4583: 77 a1 ja ffffffff810e4526 <shrink_slab+0xc6>
: total_scan -= this_scan;
:
: cond_resched();
: }
:
: shrinker->nr += total_scan;
0.00 : ffffffff810e4585: 4c 01 6b 20 add %r13,0x20(%rbx)
: /* Assume we'll be able to shrink next time */
: ret = 1;
: goto out;
: }
:
: list_for_each_entry(shrinker, &shrinker_list, list) {
1.34 : ffffffff810e4589: 48 8b 5b 10 mov 0x10(%rbx),%rbx
0.00 : ffffffff810e458d: 48 83 eb 10 sub $0x10,%rbx
0.00 : ffffffff810e4591: 48 8b 43 10 mov 0x10(%rbx),%rax
0.00 : ffffffff810e4595: 0f 18 08 prefetcht0 (%rax)
1.52 : ffffffff810e4598: 48 8d 43 10 lea 0x10(%rbx),%rax
0.00 : ffffffff810e459c: 48 3d 50 16 a3 81 cmp $0xffffffff81a31650,%rax
0.00 : ffffffff810e45a2: 0f 85 1b ff ff ff jne ffffffff810e44c3 <shrink_slab+0x63>
: cond_resched();
: }
:
: shrinker->nr += total_scan;
: }
: up_read(&shrinker_rwsem);
0.00 : ffffffff810e45a8: 48 c7 c7 30 16 a3 81 mov $0xffffffff81a31630,%rdi
0.00 : ffffffff810e45af: e8 3a e6 f8 ff callq ffffffff81072bee <up_read>
: out:
: cond_resched();
0.09 : ffffffff810e45b4: 31 d2 xor %edx,%edx
0.00 : ffffffff810e45b6: be 21 01 00 00 mov $0x121,%esi
0.00 : ffffffff810e45bb: 48 c7 c7 1c d7 7a 81 mov $0xffffffff817ad71c,%rdi
0.00 : ffffffff810e45c2: e8 81 36 f6 ff callq ffffffff81047c48 <__might_sleep>
0.18 : ffffffff810e45c7: e8 1e 01 39 00 callq ffffffff814746ea <_cond_resched>
: return ret;
: }
0.18 : ffffffff810e45cc: 48 83 c4 18 add $0x18,%rsp
0.00 : ffffffff810e45d0: 4c 89 e0 mov %r12,%rax
0.00 : ffffffff810e45d3: 5b pop %rbx
0.18 : ffffffff810e45d4: 41 5c pop %r12
0.00 : ffffffff810e45d6: 41 5d pop %r13
0.00 : ffffffff810e45d8: 41 5e pop %r14
0.00 : ffffffff810e45da: 41 5f pop %r15
0.36 : ffffffff810e45dc: 5d pop %rbp
[-- Attachment #3: livelock.perf --]
[-- Type: text/plain, Size: 122611 bytes --]
# Events: 10K cycles
#
# Overhead Command Shared Object Symbol
# ........ ............... .................................. ..........................................
#
62.70% kswapd0 [i915] [k] i915_gem_object_bind_to_gtt
|
--- i915_gem_object_bind_to_gtt
|
|--99.98%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
--0.02%-- [...]
11.05% kswapd0 [kernel.kallsyms] [k] shrink_slab
|
--- shrink_slab
|
|--99.73%-- kswapd
| kthread
| kernel_thread_helper
--0.27%-- [...]
3.35% kswapd0 [kernel.kallsyms] [k] shrink_zone
|
--- shrink_zone
kswapd
kthread
kernel_thread_helper
2.85% kswapd0 [kernel.kallsyms] [k] kswapd
|
--- kswapd
kthread
kernel_thread_helper
1.90% kswapd0 [kernel.kallsyms] [k] zone_watermark_ok_safe
|
--- zone_watermark_ok_safe
|
|--79.27%-- kswapd
| kthread
| kernel_thread_helper
|
|--18.13%-- sleeping_prematurely.part.11
| kswapd
| kthread
| kernel_thread_helper
|
--2.59%-- kthread
kernel_thread_helper
1.71% kswapd0 [kernel.kallsyms] [k] do_raw_spin_lock
|
--- do_raw_spin_lock
|
|--85.07%-- _raw_spin_lock
| |
| |--56.79%-- mb_cache_shrink_fn
| | shrink_slab
| | kswapd
| | kthread
| | kernel_thread_helper
| |
| |--42.54%-- mem_cgroup_soft_limit_reclaim
| | kswapd
| | kthread
| | kernel_thread_helper
| |
| --0.68%-- __mutex_unlock_slowpath
| mutex_unlock
| i915_gem_object_bind_to_gtt
| shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
|--12.06%-- _raw_spin_lock_irq
| shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
|--2.30%-- mem_cgroup_soft_limit_reclaim
| kswapd
| kthread
| kernel_thread_helper
|
--0.57%-- mb_cache_shrink_fn
shrink_slab
kswapd
kthread
kernel_thread_helper
1.27% kswapd0 [kernel.kallsyms] [k] __zone_watermark_ok
|
--- __zone_watermark_ok
|
|--81.36%-- zone_watermark_ok_safe
| |
| |--63.81%-- kswapd
| | kthread
| | kernel_thread_helper
| |
| --36.19%-- sleeping_prematurely.part.11
| kswapd
| kthread
| kernel_thread_helper
|
|--16.32%-- kswapd
| kthread
| kernel_thread_helper
|
--2.32%-- sleeping_prematurely.part.11
kswapd
kthread
kernel_thread_helper
1.19% kswapd0 [kernel.kallsyms] [k] global_dirty_limits
|
--- global_dirty_limits
|
|--96.69%-- throttle_vm_writeout
| shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
--3.31%-- shrink_zone
kswapd
kthread
kernel_thread_helper
0.91% kswapd0 [kernel.kallsyms] [k] mutex_unlock
|
--- mutex_unlock
|
|--67.39%-- i915_gem_object_bind_to_gtt
| shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--32.61%-- shrink_slab
kswapd
kthread
kernel_thread_helper
0.79% kswapd0 [kernel.kallsyms] [k] sleeping_prematurely.part.11
|
--- sleeping_prematurely.part.11
|
|--96.25%-- kswapd
| kthread
| kernel_thread_helper
|
--3.75%-- kthread
kernel_thread_helper
0.71% kswapd0 [kernel.kallsyms] [k] zone_nr_lru_pages
|
--- zone_nr_lru_pages
|
|--77.78%-- shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
--22.22%-- kswapd
kthread
kernel_thread_helper
0.68% kswapd0 [kernel.kallsyms] [k] throttle_vm_writeout
|
--- throttle_vm_writeout
|
|--98.55%-- shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
--1.45%-- kswapd
kthread
kernel_thread_helper
0.66% kswapd0 [kernel.kallsyms] [k] find_next_bit
|
--- find_next_bit
|
|--94.03%-- cpumask_next
| zone_watermark_ok_safe
| kswapd
| kthread
| kernel_thread_helper
|
--5.97%-- zone_watermark_ok_safe
kswapd
kthread
kernel_thread_helper
0.62% kswapd0 [kernel.kallsyms] [k] down_read_trylock
|
--- down_read_trylock
|
|--98.41%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--1.59%-- kswapd
kthread
kernel_thread_helper
0.61% kswapd0 [kernel.kallsyms] [k] mutex_trylock
|
--- mutex_trylock
i915_gem_object_bind_to_gtt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.59% kswapd0 [kernel.kallsyms] [k] mb_cache_shrink_fn
|
--- mb_cache_shrink_fn
|
|--95.00%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--5.00%-- kswapd
kthread
kernel_thread_helper
0.49% kswapd0 [kernel.kallsyms] [k] up_read
|
--- up_read
|
|--96.00%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--4.00%-- kswapd
kthread
kernel_thread_helper
0.41% kswapd0 [kernel.kallsyms] [k] prepare_to_wait
|
--- prepare_to_wait
|
|--97.62%-- kswapd
| kthread
| kernel_thread_helper
|
--2.38%-- kthread
kernel_thread_helper
0.39% kswapd0 [kernel.kallsyms] [k] mem_cgroup_soft_limit_reclaim
|
--- mem_cgroup_soft_limit_reclaim
|
|--97.50%-- kswapd
| kthread
| kernel_thread_helper
|
--2.50%-- kthread
kernel_thread_helper
0.39% kswapd0 [kernel.kallsyms] [k] arch_local_save_flags
|
--- arch_local_save_flags
__might_sleep
shrink_slab
kswapd
kthread
kernel_thread_helper
0.38% kswapd0 [kernel.kallsyms] [k] arch_local_irq_restore
|
--- arch_local_irq_restore
|
|--74.36%-- _raw_spin_unlock_irqrestore
| |
| |--65.52%-- prepare_to_wait
| | kswapd
| | kthread
| | kernel_thread_helper
| |
| --34.48%-- finish_wait
| kswapd
| kthread
| kernel_thread_helper
|
|--15.38%-- finish_wait
| kswapd
| kthread
| kernel_thread_helper
|
--10.26%-- prepare_to_wait
kswapd
kthread
kernel_thread_helper
0.38% kswapd0 [kernel.kallsyms] [k] _raw_spin_lock_irqsave
|
--- _raw_spin_lock_irqsave
|
|--48.72%-- prepare_to_wait
| kswapd
| kthread
| kernel_thread_helper
|
|--46.15%-- finish_wait
| kswapd
| kthread
| kernel_thread_helper
|
--5.13%-- kswapd
kthread
kernel_thread_helper
0.36% kswapd0 [kernel.kallsyms] [k] zone_reclaimable_pages
|
--- zone_reclaimable_pages
|
|--72.97%-- kswapd
| kthread
| kernel_thread_helper
|
--27.03%-- kthread
kernel_thread_helper
0.30% kswapd0 [kernel.kallsyms] [k] shrink_icache_memory
|
--- shrink_icache_memory
|
|--93.33%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--6.67%-- kswapd
kthread
kernel_thread_helper
0.30% kswapd0 [kernel.kallsyms] [k] zone_clear_flag
|
--- zone_clear_flag
|
|--80.00%-- kswapd
| kthread
| kernel_thread_helper
|
--20.00%-- kthread
kernel_thread_helper
0.27% kswapd0 [kernel.kallsyms] [k] cpumask_next
|
--- cpumask_next
|
|--77.78%-- zone_watermark_ok_safe
| kswapd
| kthread
| kernel_thread_helper
|
--22.22%-- kswapd
kthread
kernel_thread_helper
0.26% kswapd0 [kernel.kallsyms] [k] shrink_dqcache_memory
|
--- shrink_dqcache_memory
|
|--92.31%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--7.69%-- kswapd
kthread
kernel_thread_helper
0.25% kswapd0 [kernel.kallsyms] [k] shrink_dcache_memory
|
--- shrink_dcache_memory
|
|--92.00%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--8.00%-- kswapd
kthread
kernel_thread_helper
0.23% kswapd0 [sunrpc] [k] param_set_hashtbl_sz
|
--- param_set_hashtbl_sz
|
|--82.61%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--17.39%-- kswapd
kthread
kernel_thread_helper
0.22% kswapd0 [kernel.kallsyms] [k] global_page_state
|
--- global_page_state
|
|--40.91%-- determine_dirtyable_memory
| global_dirty_limits
| throttle_vm_writeout
| shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
|--27.27%-- global_dirty_limits
| throttle_vm_writeout
| shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
|--27.27%-- throttle_vm_writeout
| shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
--4.55%-- shrink_zone
kswapd
kthread
kernel_thread_helper
0.22% kswapd0 [kernel.kallsyms] [k] need_resched
|
--- need_resched
|
|--50.00%-- _cond_resched
| shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--50.00%-- should_resched
_cond_resched
shrink_slab
kswapd
kthread
kernel_thread_helper
0.20% kswapd0 [kernel.kallsyms] [k] finish_wait
|
--- finish_wait
|
|--95.00%-- kswapd
| kthread
| kernel_thread_helper
|
--5.00%-- kthread
kernel_thread_helper
0.20% kswapd0 [kernel.kallsyms] [k] __might_sleep
|
--- __might_sleep
|
|--90.00%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--10.00%-- kswapd
kthread
kernel_thread_helper
0.19% kswapd0 [kernel.kallsyms] [k] global_reclaimable_pages
|
--- global_reclaimable_pages
determine_dirtyable_memory
global_dirty_limits
throttle_vm_writeout
shrink_zone
kswapd
kthread
kernel_thread_helper
0.18% kswapd0 [kernel.kallsyms] [k] test_tsk_thread_flag
|
--- test_tsk_thread_flag
|
|--66.67%-- kswapd
| kthread
| kernel_thread_helper
|
--33.33%-- try_to_freeze
kswapd
kthread
kernel_thread_helper
0.16% kswapd0 [kvm] [k] paging_free
|
--- paging_free
|
|--93.75%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--6.25%-- kswapd
kthread
kernel_thread_helper
0.15% kswapd0 [kernel.kallsyms] [k] __mem_cgroup_largest_soft_limit_node
|
--- __mem_cgroup_largest_soft_limit_node
|
|--80.00%-- mem_cgroup_soft_limit_reclaim
| kswapd
| kthread
| kernel_thread_helper
|
--20.00%-- kswapd
kthread
kernel_thread_helper
0.14% kswapd0 [kernel.kallsyms] [k] determine_dirtyable_memory
|
--- determine_dirtyable_memory
|
|--78.57%-- global_dirty_limits
| throttle_vm_writeout
| shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
--21.43%-- throttle_vm_writeout
shrink_zone
kswapd
kthread
kernel_thread_helper
0.13% kswapd0 [kernel.kallsyms] [k] arch_local_irq_save
|
--- arch_local_irq_save
|
|--61.54%-- _raw_spin_lock_irqsave
| |
| |--75.00%-- prepare_to_wait
| | kswapd
| | kthread
| | kernel_thread_helper
| |
| --25.00%-- finish_wait
| kswapd
| kthread
| kernel_thread_helper
|
|--23.08%-- prepare_to_wait
| kswapd
| kthread
| kernel_thread_helper
|
--15.38%-- finish_wait
kswapd
kthread
kernel_thread_helper
0.12% kswapd0 [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore
|
--- _raw_spin_unlock_irqrestore
|
|--58.33%-- finish_wait
| kswapd
| kthread
| kernel_thread_helper
|
--41.67%-- prepare_to_wait
kswapd
kthread
kernel_thread_helper
0.09% kswapd0 [kernel.kallsyms] [k] _raw_spin_lock
|
--- _raw_spin_lock
|
|--66.67%-- mb_cache_shrink_fn
| shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--33.33%-- mem_cgroup_soft_limit_reclaim
kswapd
kthread
kernel_thread_helper
0.08% kswapd0 [kernel.kallsyms] [k] kthread_should_stop
|
--- kthread_should_stop
kthread
kernel_thread_helper
0.08% Xorg [drm] [k] drm_addmap_core
|
--- drm_addmap_core
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
|
|--58.68%-- i915_gem_object_bind_to_gtt
| i915_gem_object_bind_to_gtt
| i915_gem_object_bind_to_gtt
| drm_gem_vm_close
| kref_put
| drm_gem_vm_close
| drm_gem_vm_close
| drm_gem_vm_close
| drm_ctxbitmap_init
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| 0x3961ed8af7
|
--41.32%-- i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.07% kswapd0 [kernel.kallsyms] [k] __list_add
|
--- __list_add
|
|--85.71%-- prepare_to_wait
| kswapd
| kthread
| kernel_thread_helper
|
--14.29%-- kswapd
kthread
kernel_thread_helper
0.07% kswapd0 [kernel.kallsyms] [k] __list_del_entry
|
--- __list_del_entry
|
|--57.14%-- finish_wait
| kswapd
| kthread
| kernel_thread_helper
|
--42.86%-- kswapd
kthread
kernel_thread_helper
0.07% kswapd0 [kernel.kallsyms] [k] arch_local_irq_disable
|
--- arch_local_irq_disable
|
|--85.72%-- arch_local_irq_save
| _raw_spin_lock_irqsave
| |
| |--50.00%-- prepare_to_wait
| | kswapd
| | kthread
| | kernel_thread_helper
| |
| --50.00%-- finish_wait
| kswapd
| kthread
| kernel_thread_helper
|
--14.28%-- _raw_spin_lock_irq
shrink_zone
kswapd
kthread
kernel_thread_helper
0.06% perf [kernel.kallsyms] [k] number
|
--- number
|
|--84.53%-- vsnprintf
| seq_printf
| render_sigset_t
| proc_pid_status
| proc_single_show
| seq_read
| vfs_read
| sys_read
| system_call_fastpath
| __GI___libc_read
|
--15.47%-- seq_printf
show_map_vma
show_map
seq_read
vfs_read
sys_read
system_call_fastpath
__GI___libc_read
0.06% swapper [kernel.kallsyms] [k] intel_idle
|
--- intel_idle
cpuidle_idle_call
cpu_idle
|
|--68.35%-- rest_init
| start_kernel
| x86_64_start_reservations
| x86_64_start_kernel
|
--31.65%-- start_secondary
0.06% kswapd0 [kernel.kallsyms] [k] _cond_resched
|
--- _cond_resched
|
|--66.67%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--33.33%-- kswapd
kthread
kernel_thread_helper
0.06% kswapd0 [kernel.kallsyms] [k] _raw_spin_lock_irq
|
--- _raw_spin_lock_irq
shrink_zone
kswapd
kthread
kernel_thread_helper
0.05% Xorg [unknown] [.] 0x3961e7a472
|
--- 0x7f795b853753
0x2a1f6f0
|
--- 0x44c6ed
0x4d3b0e
0x42ec11
0x422e1a
0x3961e2143d
|
--- 0x432a3e
0x45b729
0x42e9aa
0x422e1a
0x3961e2143d
|
--- 0x467c10
0x42ea88
0x422e1a
0x3961e2143d
|
--- 0x4bd248
0x44c7f6
0x4d382f
0x42ec11
0x422e1a
0x3961e2143d
|
--- 0x43a017
0x43b27e
0x500345
0x4383fd
0x4d734b
0x4d80bf
0x4d8217
0x4d99d6
0x4d4475
0x42ec11
0x422e1a
0x3961e2143d
|
--- 0x396b613c10
|
--- 0x3961e78bb6
|
--- 0x3f192096c5
0x432b8b
0x45b7c9
0x42e9aa
0x422e1a
0x3961e2143d
|
--- 0x3961e7a472
|
--- 0x44c6e1
0x42ec11
0x422e1a
0x3961e2143d
|
--- 0x3961ed8feb
0.04% kswapd0 [kernel.kallsyms] [k] apic_timer_interrupt
|
--- apic_timer_interrupt
|
|--50.00%-- shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--50.00%-- kswapd
kthread
kernel_thread_helper
0.04% kswapd0 [kernel.kallsyms] [k] get_reclaim_stat
|
--- get_reclaim_stat
|
|--75.00%-- shrink_zone
| kswapd
| kthread
| kernel_thread_helper
|
--25.00%-- kswapd
kthread
kernel_thread_helper
0.04% kswapd0 [kernel.kallsyms] [k] should_resched
|
--- should_resched
_cond_resched
shrink_slab
kswapd
kthread
kernel_thread_helper
0.03% perf [kernel.kallsyms] [k] arch_local_irq_restore
|
--- arch_local_irq_restore
single_release
fput
filp_close
sys_close
system_call_fastpath
__GI___close
0.03% kswapd0 [kernel.kallsyms] [k] spin_unlock_irq
|
--- spin_unlock_irq
shrink_zone
kswapd
kthread
kernel_thread_helper
0.03% perf [kernel.kallsyms] [k] mangle_path
|
--- mangle_path
seq_path
show_map_vma
show_map
seq_read
vfs_read
sys_read
system_call_fastpath
__GI___libc_read
0.02% top libc-2.13.90.so [.] _IO_vfscanf_internal
|
--- _IO_vfscanf_internal
_IO_vsscanf
|
|--67.69%-- 0x7fff716bcfd0
|
--32.31%-- 0x7fff716bd0c0
0.02% perf [kernel.kallsyms] [k] format_decode
|
--- format_decode
vsnprintf
seq_printf
show_map_vma
show_map
seq_read
vfs_read
sys_read
system_call_fastpath
__GI___libc_read
0.02% perf [kernel.kallsyms] [k] unlink_anon_vmas
|
--- unlink_anon_vmas
unmap_region
do_munmap
sys_munmap
system_call_fastpath
__munmap
0.02% gnome-shell libglib-2.0.so.0.2800.6 [.] 0x19870
|
--- 0x3f13262ffb
|
--- 0x3f13219870
|
--- 0x3f13232052
|
--- 0x3f13262fe0
|
--- 0x3f13231c3f
|
--- 0x3f13219853
0.02% kswapd0 [kernel.kallsyms] [k] try_to_freeze
|
--- try_to_freeze
|
|--50.49%-- kswapd
| kthread
| kernel_thread_helper
|
--49.51%-- kthread
kernel_thread_helper
0.02% kswapd0 [kernel.kallsyms] [k] native_write_msr_safe
|
--- native_write_msr_safe
paravirt_write_msr
intel_pmu_disable_all
x86_pmu_disable
perf_pmu_disable
perf_event_task_tick
scheduler_tick
update_process_times
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.02% kswapd0 [kernel.kallsyms] [k] rb_last
|
--- rb_last
|
|--50.00%-- mem_cgroup_soft_limit_reclaim
| kswapd
| kthread
| kernel_thread_helper
|
--50.00%-- __mem_cgroup_largest_soft_limit_node
mem_cgroup_soft_limit_reclaim
kswapd
kthread
kernel_thread_helper
0.02% kswapd0 [kernel.kallsyms] [k] arch_local_irq_restore
|
--- arch_local_irq_restore
|
|--50.00%-- irq_enter
| __irqentry_text_start
| ret_from_intr
| shrink_slab
| kswapd
| kthread
| kernel_thread_helper
|
--50.00%-- account_system_vtime
__do_softirq
call_softirq
do_softirq
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.02% kswapd0 [i915] [k] i915_error_work_func
|
--- i915_error_work_func
i915_error_work_func
handle_IRQ_event
handle_edge_irq
handle_irq
__irqentry_text_start
ret_from_intr
|
|--50.01%-- kswapd
| kthread
| kernel_thread_helper
|
--49.99%-- shrink_zone
kswapd
kthread
kernel_thread_helper
0.02% perf [kernel.kallsyms] [k] selinux_file_permission
|
--- selinux_file_permission
security_file_permission
rw_verify_area
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.02% gnome-shell libclutter-glx-1.0.so.0.600.14 [.] 0xd31ec
|
--- 0x346ac409fa
|
--- 0x346ac41470
(nil)
|
--- 0x346ace1a60
|
--- 0x346acd31ec
(nil)
0.02% top libc-2.13.90.so [.] _IO_default_xsputn_internal
|
--- _IO_default_xsputn_internal
|
|--43.63%-- ___vsnprintf_chk
|
|--37.31%-- ___vsprintf_chk
|
--19.06%-- 0x396240f5c0
0.01% gnome-shell i965_dri.so [.] 0x228d04
|
--- 0x7f5b04f99a2b
|
--- 0x7f5b04fe707c
|
--- 0x7f5b050e837c
|
--- 0x7f5b04fd88a2
|
--- 0x7f5b050e9d04
0.01% perf [kernel.kallsyms] [k] __ext4_journal_stop
|
--- __ext4_journal_stop
ext4_da_write_end
generic_file_buffered_write
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% swapper [kernel.kallsyms] [k] nr_iowait_cpu
|
--- nr_iowait_cpu
tick_nohz_stop_idle
tick_check_idle
irq_enter
smp_call_function_single_interrupt
call_function_single_interrupt
cpuidle_idle_call
cpu_idle
start_secondary
0.01% top [kernel.kallsyms] [k] cp_new_stat
|
--- cp_new_stat
sys_newstat
system_call_fastpath
_xstat
0.01% gnome-terminal libcairo.so.2.11000.2 [.] 0x63d86
|
--- 0x3f15a16921
|
--- 0x3f15a60c13
0x6fdb40
|
--- 0x3f15a3c970
|
--- 0x3f15a164b9
0x6200000001
|
--- 0x3f15a63d86
(nil)
0.01% gnome-shell libmozjs.so [.] 0x139625
|
--- 0x346b8cc289
|
--- 0x346b959ccd
|
--- 0x346b8538f0
|
--- 0x346b939625
|
--- 0x346b851093
0xd
0.01% irqbalance [unknown] [.] 0x3961e47990
|
--- 0x403d88
|
--- 0x3961e47990
0x3961ef5591
0.01% top [kernel.kallsyms] [k] avc_has_perm_noaudit
|
--- avc_has_perm_noaudit
avc_has_perm
inode_has_perm
selinux_inode_permission
security_inode_exec_permission
exec_permission
link_path_walk
do_path_lookup
user_path_at
|
|--64.32%-- vfs_fstatat
| vfs_stat
| sys_newstat
| system_call_fastpath
| _xstat
|
--35.68%-- sys_faccessat
sys_access
system_call_fastpath
__GI___access
0.01% perf [kernel.kallsyms] [k] __ext4_journal_get_write_access
|
--- __ext4_journal_get_write_access
ext4_reserve_inode_write
ext4_mark_inode_dirty
ext4_dirty_inode
__mark_inode_dirty
file_update_time
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf [kernel.kallsyms] [k] rw_verify_area
|
--- rw_verify_area
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf [kernel.kallsyms] [k] iov_iter_advance
|
--- iov_iter_advance
generic_file_buffered_write
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf [kernel.kallsyms] [k] put_bh
|
--- put_bh
__brelse
brelse
ext4_xattr_get
ext4_xattr_security_get
generic_getxattr
cap_inode_need_killpriv
security_inode_need_killpriv
file_remove_suid
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf [kernel.kallsyms] [k] strchr
|
--- strchr
mangle_path
seq_path
show_map_vma
show_map
seq_read
vfs_read
sys_read
system_call_fastpath
__GI___libc_read
0.01% perf [kernel.kallsyms] [k] fsnotify_create_event
|
--- fsnotify_create_event
send_to_group
fsnotify
__fsnotify_parent
fsnotify_modify
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf [kernel.kallsyms] [k] kmem_cache_alloc
|
--- kmem_cache_alloc
fsnotify_create_event
send_to_group
fsnotify
__fsnotify_parent
fsnotify_modify
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf [kernel.kallsyms] [k] _raw_spin_lock
|
--- _raw_spin_lock
path_put
d_path
seq_path
show_map_vma
show_map
seq_read
vfs_read
sys_read
system_call_fastpath
__GI___libc_read
0.01% perf [kernel.kallsyms] [k] SetPageUptodate
|
--- SetPageUptodate
__block_commit_write
block_write_end
generic_write_end
ext4_da_write_end
generic_file_buffered_write
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf perf [.] 0x3badc
|
--- 0x43badc
0x4292d5
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% perf libc-2.13.90.so [.] __memchr
|
--- __memchr
0.01% perf [kernel.kallsyms] [k] send_to_group
|
--- send_to_group
fsnotify
__fsnotify_parent
fsnotify_modify
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0.01% perf [kernel.kallsyms] [k] jbd2_journal_cancel_revoke
|
--- jbd2_journal_cancel_revoke
do_get_write_access
jbd2_journal_get_write_access
__ext4_journal_get_write_access
ext4_reserve_inode_write
ext4_mark_inode_dirty
ext4_dirty_inode
__mark_inode_dirty
generic_write_end
ext4_da_write_end
generic_file_buffered_write
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% kswapd0 [kernel.kallsyms] [k] arch_local_irq_save
|
--- arch_local_irq_save
update_wall_time
do_timer
tick_do_update_jiffies64
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
kswapd
kthread
kernel_thread_helper
0.01% kswapd0 [kernel.kallsyms] [k] rcu_bh_qs
|
--- rcu_bh_qs
rcu_check_callbacks
update_process_times
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.01% kswapd0 [kernel.kallsyms] [k] update_rq_clock
|
--- update_rq_clock
scheduler_tick
update_process_times
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.01% kswapd0 [kernel.kallsyms] [k] scheduler_tick
|
--- scheduler_tick
update_process_times
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.01% kswapd0 [kernel.kallsyms] [k] rcu_irq_enter
|
--- rcu_irq_enter
irq_enter
smp_apic_timer_interrupt
apic_timer_interrupt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.01% kswapd0 [kernel.kallsyms] [k] arch_local_save_flags
|
--- arch_local_save_flags
run_posix_cpu_timers
update_process_times
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
kswapd
kthread
kernel_thread_helper
0.01% kworker/1:0 [cpufreq_ondemand] [k] store_sampling_rate_old
|
--- store_sampling_rate_old
process_one_work
worker_thread
kthread
kernel_thread_helper
0.01% kswapd0 [kernel.kallsyms] [k] sched_clock_cpu
|
--- sched_clock_cpu
__do_softirq
call_softirq
do_softirq
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
shrink_slab
kswapd
kthread
kernel_thread_helper
0.01% kworker/1:0 [kernel.kallsyms] [k] worker_enter_idle
|
--- worker_enter_idle
worker_thread
kthread
kernel_thread_helper
0.01% perf [kernel.kallsyms] [k] ext4_da_write_begin
|
--- ext4_da_write_begin
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4293b8
0x429c0a
0x418709
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% Xorg [i915] [k] intel_dp_prepare
|
--- intel_dp_prepare
intel_dp_prepare
intel_dp_prepare
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% Xorg [kernel.kallsyms] [k] free_pages_prepare
|
--- free_pages_prepare
free_hot_cold_page
__pagevec_free
release_pages
__pagevec_release
pagevec_release
truncate_inode_pages_range
truncate_inode_pages
i915_gem_object_truncate
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
drm_gem_vm_close
kref_put
drm_gem_vm_close
drm_gem_vm_close
drm_gem_vm_close
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% kworker/0:0 [kernel.kallsyms] [k] kobject_put
|
--- kobject_put
cpufreq_cpu_put
__cpufreq_driver_getavg
store_sampling_rate_old
process_one_work
worker_thread
kthread
kernel_thread_helper
0.01% gnome-shell libpthread-2.13.90.so [.] pthread_mutex_lock
|
--- pthread_mutex_lock
0.01% gnome-shell libpixman-1.so.0.20.2 [.] 0x17152
|
--- 0x396b617152
0.01% gnome-shell [drm] [k] drm_addmap_core
|
--- drm_addmap_core
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
drm_gem_vm_close
kref_put
drm_gem_vm_close
drm_gem_vm_close
drm_gem_vm_close
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
__GI_ioctl
0.01% perf [kernel.kallsyms] [k] _raw_spin_lock_irqsave
|
--- _raw_spin_lock_irqsave
__wake_up
jbd2_journal_stop
__ext4_journal_stop
ext4_da_write_end
generic_file_buffered_write
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.01% top [kernel.kallsyms] [k] _cond_resched
|
--- _cond_resched
kmem_cache_alloc
get_empty_filp
do_filp_open
do_sys_open
sys_open
system_call_fastpath
__GI___libc_open
0.01% top [kernel.kallsyms] [k] dput
|
--- dput
path_put
do_path_lookup
user_path_at
vfs_fstatat
vfs_stat
sys_newstat
system_call_fastpath
_xstat
0.01% top [kernel.kallsyms] [k] seq_open
|
--- seq_open
single_open
proc_single_open
__dentry_open
nameidata_to_filp
finish_open
do_filp_open
do_sys_open
sys_open
system_call_fastpath
__GI___libc_open
0.01% Xorg [kernel.kallsyms] [k] __mutex_lock_common
|
--- __mutex_lock_common
__mutex_lock_interruptible_slowpath
__mutex_fastpath_lock_retval
mutex_lock_interruptible
i915_mutex_lock_interruptible
i915_gem_object_bind_to_gtt
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% gnome-terminal libvte2_90.so.9.2800.0 [.] 0x19565
|
--- 0x3468c38582
|
--- 0x3468c19565
__GI_clock_gettime
|
--- 0x3468c1fb30
0.01% top libc-2.13.90.so [.] ____strtoul_l_internal
|
--- ____strtoul_l_internal
0.01% gnome-shell libgobject-2.0.so.0.2800.6 [.] 0x32790
|
--- 0x3f13a32e60
|
--- 0x3f13a32790
|
--- 0x3f13a1e809
0.01% usb-storage [kernel.kallsyms] [k] usb_hcd_link_urb_to_ep
|
--- usb_hcd_link_urb_to_ep
|
|--68.61%-- ehci_urb_enqueue
| usb_hcd_submit_urb
| usb_submit_urb
| usb_stor_transparent_scsi_command
| usb_stor_transparent_scsi_command
| usb_stor_transparent_scsi_command
| usb_stor_transparent_scsi_command
| usb_stor_transparent_scsi_command
| usb_stor_transparent_scsi_command
| kthread
| kernel_thread_helper
|
--31.39%-- usb_hcd_submit_urb
usb_submit_urb
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
kthread
kernel_thread_helper
0.01% Xorg [kernel.kallsyms] [k] gen6_write_entry
|
--- gen6_write_entry
i915_gem_execbuffer
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
drm_gem_vm_close
kref_put
drm_gem_vm_close
drm_gem_vm_close
drm_gem_vm_close
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% gnome-shell libxcb.so.1.1.0 [.] 0xa721
|
--- 0x3965e0a721
|
--- 0x3965e082c8
0.01% swapper [kernel.kallsyms] [k] getnstimeofday
|
--- getnstimeofday
ktime_get_real
intel_idle
cpuidle_idle_call
cpu_idle
start_secondary
0.01% udisks-daemon [kernel.kallsyms] [k] ihold
|
--- ihold
bd_acquire
blkdev_open
__dentry_open
nameidata_to_filp
finish_open
do_filp_open
do_sys_open
sys_open
system_call_fastpath
0x396220ec80
0.01% top [kernel.kallsyms] [k] dget
|
--- dget
path_get
nameidata_to_filp
finish_open
do_filp_open
do_sys_open
sys_open
system_call_fastpath
__GI___libc_open
0.01% gnome-terminal libpthread-2.13.90.so [.] __pthread_mutex_unlock
|
--- __pthread_mutex_unlock
0.01% Xorg [kernel.kallsyms] [k] kref_put
|
--- kref_put
drm_gem_object_unreference
i915_gem_object_move_to_inactive
i915_gem_retire_requests_ring
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% top [kernel.kallsyms] [k] expand_files
|
--- expand_files
alloc_fd
do_sys_open
sys_open
system_call_fastpath
__GI___libc_open
0.01% swapper [kernel.kallsyms] [k] menu_select
|
--- menu_select
|
|--67.44%-- cpu_idle
| rest_init
| start_kernel
| x86_64_start_reservations
| x86_64_start_kernel
|
--32.56%-- cpuidle_idle_call
cpu_idle
start_secondary
0.01% swapper [kernel.kallsyms] [k] cpumask_clear_cpu.constprop.2
|
--- cpumask_clear_cpu.constprop.2
tick_check_idle
irq_enter
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
start_secondary
0.01% Xorg [kernel.kallsyms] [k] mutex_spin_on_owner
|
--- mutex_spin_on_owner
__mutex_lock_common
__mutex_lock_interruptible_slowpath
__mutex_fastpath_lock_retval
mutex_lock_interruptible
i915_mutex_lock_interruptible
i915_gem_object_bind_to_gtt
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% Xorg [kernel.kallsyms] [k] zone_watermark_ok
|
--- zone_watermark_ok
get_page_from_freelist
__alloc_pages_nodemask
alloc_pages_current
__get_free_pages
__pollwait
sock_poll_wait
unix_poll
sock_poll
do_select
core_sys_select
sys_select
system_call_fastpath
0x3961ed91d3
0x42e9aa
0x422e1a
0x3961e2143d
0.01% swapper [kernel.kallsyms] [k] switch_mm
|
--- switch_mm
schedule
cpu_idle
start_secondary
0.01% top [kernel.kallsyms] [k] put_dec
|
--- put_dec
number
vsnprintf
seq_printf
do_task_stat
proc_tgid_stat
proc_single_show
seq_read
vfs_read
sys_read
system_call_fastpath
__GI___libc_read
0.01% gnome-shell [kernel.kallsyms] [k] may_expand_vm
|
--- may_expand_vm
mmap_region
do_mmap_pgoff
sys_mmap_pgoff
sys_mmap
system_call_fastpath
__mmap
0.01% Xorg [kernel.kallsyms] [k] mutex_lock_interruptible
|
--- mutex_lock_interruptible
i915_mutex_lock_interruptible
i915_gem_object_bind_to_gtt
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% swapper [kernel.kallsyms] [k] ktime_get_real
|
--- ktime_get_real
cpuidle_idle_call
cpu_idle
|
|--55.14%-- rest_init
| start_kernel
| x86_64_start_reservations
| x86_64_start_kernel
|
--44.86%-- start_secondary
0.01% irqbalance [kernel.kallsyms] [k] sysfs_readdir
|
--- sysfs_readdir
vfs_readdir
sys_getdents
system_call_fastpath
0x3961eaa0b5
0.01% Xorg [kernel.kallsyms] [k] do_raw_spin_lock
|
--- do_raw_spin_lock
_raw_spin_lock
drm_gem_vm_close
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.01% kworker/2:0 [kernel.kallsyms] [k] get_gcwq_nr_running
|
--- get_gcwq_nr_running
worker_thread
kthread
kernel_thread_helper
0.01% top top [.] 0x6b33
|
--- 0x406b33
0.01% top [kernel.kallsyms] [k] __strncpy_from_user
|
--- __strncpy_from_user
getname
do_sys_open
sys_open
system_call_fastpath
__GI___libc_open
0.01% firefox libsqlite3.so.0.8.6 [.] 0x41060
|
--- 0x3973e41060
0.01% swapper [kernel.kallsyms] [k] account_system_vtime
|
--- account_system_vtime
|
|--50.66%-- irq_exit
| smp_apic_timer_interrupt
| apic_timer_interrupt
| cpuidle_idle_call
| cpu_idle
| start_secondary
|
--49.34%-- irq_enter
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.01% gnome-terminal [kernel.kallsyms] [k] fput
|
--- fput
poll_freewait
do_sys_poll
sys_poll
system_call_fastpath
__GI___poll
0.01% gnome-shell [kernel.kallsyms] [k] get_unmapped_area_prot
|
--- get_unmapped_area_prot
do_mmap_pgoff
sys_mmap_pgoff
sys_mmap
system_call_fastpath
__mmap
0.01% top [kernel.kallsyms] [k] link_path_walk
|
--- link_path_walk
do_path_lookup
user_path_at
vfs_fstatat
vfs_stat
sys_newstat
system_call_fastpath
_xstat
0.01% swapper [r8169] [k] rtl8169_interrupt
|
--- rtl8169_interrupt
handle_IRQ_event
handle_edge_irq
handle_irq
__irqentry_text_start
ret_from_intr
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.01% gnome-shell libc-2.13.90.so [.] __GI_vfprintf
|
--- __GI_vfprintf
__vasprintf_chk
0x7fff7b7d6f70
0.01% gnome-shell [kernel.kallsyms] [k] dput
|
--- dput
audit_free_names
audit_syscall_exit
sysret_audit
__GI___poll
0.01% gnome-shell libc-2.13.90.so [.] malloc_consolidate.part.3
|
--- malloc_consolidate.part.3
0.01% gnome-shell [i915] [k] intel_dp_prepare
|
--- intel_dp_prepare
intel_dp_prepare
intel_dp_prepare
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
__GI_ioctl
0.01% gnome-shell libstartup-notification-1.so.0.0.0 [.] 0x45cb
|
--- 0x3f00e045cb
0xa3d5
0.01% gnome-shell [kernel.kallsyms] [k] scm_destroy
|
--- scm_destroy
unix_destruct_scm
skb_release_head_state
__kfree_skb
consume_skb
unix_stream_recvmsg
sock_aio_read.part.7
sock_aio_read
do_sync_read
vfs_read
sys_read
system_call_fastpath
__read
0.01% swapper [kernel.kallsyms] [k] __switch_to
|
--- __switch_to
0.01% swapper [kernel.kallsyms] [k] arch_local_irq_restore
|
--- arch_local_irq_restore
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% gnome-terminal [kernel.kallsyms] [k] _raw_spin_lock_irqsave
|
--- _raw_spin_lock_irqsave
__pollwait
n_tty_poll
tty_poll
do_sys_poll
sys_poll
system_call_fastpath
__GI___poll
0.00% gnome-shell libxklavier.so.16.1.0 [.] 0xf33b
|
--- 0x7f5afa8d933b
0.00% gnome-settings- libORBit-2.so.0.1.0 [.] 0x4b374
|
--- 0x3f1964b374
0.00% gnome-shell [kernel.kallsyms] [k] __mutex_fastpath_lock_retval
|
--- __mutex_fastpath_lock_retval
unix_stream_recvmsg
sock_aio_read.part.7
sock_aio_read
do_sync_read
vfs_read
sys_read
system_call_fastpath
__read
0.00% swapper [kernel.kallsyms] [k] do_raw_spin_lock
|
--- do_raw_spin_lock
_raw_spin_lock
get_next_timer_interrupt
tick_nohz_stop_sched_tick
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% swapper [kernel.kallsyms] [k] hrtimer_start_range_ns
|
--- hrtimer_start_range_ns
tick_nohz_restart_sched_tick
cpu_idle
start_secondary
0.00% gnome-shell libc-2.13.90.so [.] __GI___poll
|
--- __GI___poll
0.00% gnome-shell libc-2.13.90.so [.] __strlen_sse42
|
--- __strlen_sse42
0.00% swapper [kernel.kallsyms] [k] apic_timer_interrupt
|
--- apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% top [kernel.kallsyms] [k] alloc_fd
|
--- alloc_fd
do_sys_open
sys_open
system_call_fastpath
__GI___libc_open
0.00% Xorg [kernel.kallsyms] [k] ktime_get_ts
|
--- ktime_get_ts
poll_select_copy_remaining
sys_select
system_call_fastpath
0x3961ed91d3
0x42e9aa
0x422e1a
0x3961e2143d
0.00% top [kernel.kallsyms] [k] number
|
--- number
vsnprintf
seq_printf
do_task_stat
proc_tgid_stat
proc_single_show
seq_read
vfs_read
sys_read
system_call_fastpath
__GI___libc_read
0.00% gnome-terminal libgthread-2.0.so.0.2800.6 [.] 0x22b5
|
--- 0x3f136022b5
0.00% kworker/0:0 [kernel.kallsyms] [k] process_one_work
|
--- process_one_work
worker_thread
kthread
kernel_thread_helper
0.00% swapper [kernel.kallsyms] [k] arp_process
|
--- arp_process
NF_HOOK.constprop.6
arp_rcv
__netif_receive_skb
netif_receive_skb
napi_skb_finish
napi_gro_receive
rtl8169_rx_interrupt
rtl8169_poll
net_rx_action
__do_softirq
call_softirq
do_softirq
irq_exit
__irqentry_text_start
ret_from_intr
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% Xorg [kernel.kallsyms] [k] arch_local_irq_save
|
--- arch_local_irq_save
_raw_spin_lock_irqsave
add_wait_queue
__pollwait
sock_poll_wait
unix_poll
sock_poll
do_select
core_sys_select
sys_select
system_call_fastpath
0x3961ed91d3
0x42e9aa
0x422e1a
0x3961e2143d
0.00% gnome-terminal [kernel.kallsyms] [k] __inc_zone_state
|
--- __inc_zone_state
zone_statistics
get_page_from_freelist
__alloc_pages_nodemask
alloc_pages_current
__get_free_pages
__pollwait
n_tty_poll
tty_poll
do_sys_poll
sys_poll
system_call_fastpath
__GI___poll
0.00% swapper [kernel.kallsyms] [k] tick_check_oneshot_broadcast
|
--- tick_check_oneshot_broadcast
tick_check_idle
irq_enter
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
start_secondary
0.00% top libc-2.13.90.so [.] __GI_____strtoll_l_internal
|
--- __GI_____strtoll_l_internal
0.00% gnome-shell [kernel.kallsyms] [k] _copy_from_user
|
--- _copy_from_user
do_sys_poll
sys_poll
system_call_fastpath
__GI___poll
0.00% top libc-2.13.90.so [.] __GI_vfprintf
|
--- __GI_vfprintf
___vsprintf_chk
0.00% swapper [kernel.kallsyms] [k] __rcu_pending
|
--- __rcu_pending
rcu_check_callbacks
update_process_times
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% gnome-shell [kernel.kallsyms] [k] cpumask_next_and
|
--- cpumask_next_and
find_busiest_group
load_balance
schedule
schedule_hrtimeout_range_clock
schedule_hrtimeout_range
poll_schedule_timeout
do_sys_poll
sys_poll
system_call_fastpath
__GI___poll
0.00% gnome-shell libmutter.so.0.0.0 [.] 0x3c766
|
--- 0x3f0063c766
|
--- 0x3f0062fab8
0.00% gnome-terminal libc-2.13.90.so [.] __memmove_ssse3
|
--- __memmove_ssse3
0.00% Xorg [kernel.kallsyms] [k] get_page_from_freelist
|
--- get_page_from_freelist
__alloc_pages_nodemask
alloc_pages_current
__page_cache_alloc
do_read_cache_page
read_cache_page_gfp
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% NetworkManager [kernel.kallsyms] [k] kstrdup
|
--- kstrdup
security_inode_init_security
ext4_init_security
ext4_new_inode
ext4_create
vfs_create
do_last
do_filp_open
do_sys_open
sys_open
system_call_fastpath
0x396220ec9d
0.00% NetworkManager [kernel.kallsyms] [k] avtab_search_node
|
--- avtab_search_node
cond_compute_av
context_struct_compute_av
security_compute_av
avc_has_perm_noaudit
avc_has_perm
inode_has_perm
selinux_inode_permission
security_inode_exec_permission
exec_permission
link_path_walk
do_path_lookup
do_filp_open
do_sys_open
sys_open
system_call_fastpath
0x396220ec9d
0.00% swapper [kernel.kallsyms] [k] cpuidle_idle_call
|
--- cpuidle_idle_call
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% top libc-2.13.90.so [.] __mpn_mul_1
|
--- __mpn_mul_1
0.00% usb-storage [kernel.kallsyms] [k] schedule
|
--- schedule
schedule_timeout
wait_for_common
wait_for_completion_interruptible_timeout
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
kthread
kernel_thread_helper
0.00% Xorg [kernel.kallsyms] [k] __mod_zone_page_state
|
--- __mod_zone_page_state
__add_page_to_lru_list
____pagevec_lru_add
__lru_cache_add
add_to_page_cache_lru
do_read_cache_page
read_cache_page_gfp
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% swapper [kernel.kallsyms] [k] __kprobes_text_start
|
--- __kprobes_text_start
paravirt_read_tsc
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% swapper [kernel.kallsyms] [k] ehci_work
|
--- ehci_work
ehci_irq
usb_hcd_irq
handle_IRQ_event
handle_fasteoi_irq
handle_irq
__irqentry_text_start
ret_from_intr
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% gnome-shell libc-2.13.90.so [.] free_check
|
--- free_check
0.00% swapper [kernel.kallsyms] [k] tick_nohz_restart_sched_tick
|
--- tick_nohz_restart_sched_tick
cpu_idle
start_secondary
0.00% perf [kernel.kallsyms] [k] do_raw_spin_lock
|
--- do_raw_spin_lock
ext4_da_get_block_prep
__block_write_begin
ext4_da_write_begin
generic_file_buffered_write
__generic_file_aio_write
generic_file_aio_write
ext4_file_write
do_sync_write
vfs_write
sys_write
system_call_fastpath
__write_nocancel
0x4191c6
0x40f7a9
0x40ef8c
__libc_start_main
0.00% top libc-2.13.90.so [.] _IO_setb_internal
|
--- _IO_setb_internal
0.00% Xorg [kernel.kallsyms] [k] page_cache_get_speculative
|
--- page_cache_get_speculative
find_get_pages
pagevec_lookup
truncate_inode_pages_range
truncate_inode_pages
i915_gem_object_truncate
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
drm_gem_vm_close
kref_put
drm_gem_vm_close
drm_gem_vm_close
drm_gem_vm_close
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% gnome-shell libGL.so.1.2 [.] 0x54160
|
--- 0x346a854160
0.00% gnome-terminal libc-2.13.90.so [.] _int_free
|
--- _int_free
0.00% swapper [kernel.kallsyms] [k] task_rq_unlock
|
--- task_rq_unlock
try_to_wake_up
wake_up_process
wake_up_worker
insert_work
__queue_work
delayed_work_timer_fn
run_timer_softirq
__do_softirq
call_softirq
do_softirq
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% Xorg [kernel.kallsyms] [k] __mem_cgroup_uncharge_common
|
--- __mem_cgroup_uncharge_common
mem_cgroup_uncharge_cache_page
remove_from_page_cache
truncate_inode_page
truncate_inode_pages_range
truncate_inode_pages
i915_gem_object_truncate
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
drm_gem_vm_close
kref_put
drm_gem_vm_close
drm_gem_vm_close
drm_gem_vm_close
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% top [kernel.kallsyms] [k] __lock_text_start
|
--- __lock_text_start
__rcu_process_callbacks
rcu_process_callbacks
__do_softirq
call_softirq
do_softirq
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
do_lookup
link_path_walk
do_path_lookup
do_filp_open
do_sys_open
sys_open
system_call_fastpath
__GI___libc_open
0.00% top [kernel.kallsyms] [k] do_sigaction
|
--- do_sigaction
sys_rt_sigaction
system_call_fastpath
__GI___libc_sigaction
0.00% gnome-shell libgnome-shell.so [.] 0x60dff
|
--- 0x38aee60dff
0.00% swapper [kernel.kallsyms] [k] atomic_notifier_call_chain
|
--- atomic_notifier_call_chain
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% swapper [kernel.kallsyms] [k] _raw_spin_lock_irqsave
|
--- _raw_spin_lock_irqsave
delayed_work_timer_fn
run_timer_softirq
__do_softirq
call_softirq
do_softirq
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% swapper [kernel.kallsyms] [k] ns_to_timespec
|
--- ns_to_timespec
menu_select
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% Xorg [kernel.kallsyms] [k] arch_local_save_flags
|
--- arch_local_save_flags
__might_sleep
mutex_lock_interruptible
i915_mutex_lock_interruptible
i915_gem_object_bind_to_gtt
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% Xorg [kernel.kallsyms] [k] __kmalloc
|
--- __kmalloc
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% Xorg [i915] [k] i915_gem_retire_requests_ring
|
--- i915_gem_retire_requests_ring
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% top [kernel.kallsyms] [k] __d_lookup
|
--- __d_lookup
d_lookup
proc_fill_cache
proc_pid_readdir
proc_root_readdir
vfs_readdir
sys_getdents
system_call_fastpath
__getdents64
0.00% Xorg [kernel.kallsyms] [k] skb_has_frag_list
|
--- skb_has_frag_list
__kfree_skb
consume_skb
unix_stream_recvmsg
sock_aio_read.part.7
sock_aio_read
do_sync_read
vfs_read
sys_read
system_call_fastpath
0x396220e4d0
0x45fd01
0x42ea88
0x422e1a
0x3961e2143d
0.00% swapper [kernel.kallsyms] [k] rb_next
|
--- rb_next
timerqueue_del
__remove_hrtimer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% gnome-terminal libXrender.so.1.3.0 [.] 0x4de5
|
--- 0x3f14604de5
0.00% swapper [kernel.kallsyms] [k] find_busiest_group
|
--- find_busiest_group
load_balance
rebalance_domains
run_rebalance_domains
__do_softirq
call_softirq
do_softirq
irq_exit
smp_call_function_single_interrupt
call_function_single_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% top [kernel.kallsyms] [k] proc_fill_cache
|
--- proc_fill_cache
proc_pid_readdir
proc_root_readdir
vfs_readdir
sys_getdents
system_call_fastpath
__getdents64
0.00% swapper [kernel.kallsyms] [k] task_waking_fair
|
--- task_waking_fair
wake_up_process
hrtimer_wakeup
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% swapper [kernel.kallsyms] [k] native_read_tsc
|
--- native_read_tsc
paravirt_read_tsc
read_tsc
timekeeping_get_ns
ktime_get
tick_check_idle
irq_enter
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
start_secondary
0.00% swapper [kernel.kallsyms] [k] notifier_call_chain
|
--- notifier_call_chain
atomic_notifier_call_chain
exit_idle
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
start_secondary
0.00% swapper [kernel.kallsyms] [k] rcu_check_callbacks
|
--- rcu_check_callbacks
update_process_times
tick_sched_timer
__run_hrtimer
hrtimer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% usb-storage [kernel.kallsyms] [k] wait_for_common
|
--- wait_for_common
wait_for_completion_interruptible_timeout
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
usb_stor_transparent_scsi_command
kthread
kernel_thread_helper
0.00% Xorg [kernel.kallsyms] [k] __vm_enough_memory
|
--- __vm_enough_memory
selinux_vm_enough_memory
security_vm_enough_memory_kern
shmem_getpage
shmem_readpage
do_read_cache_page
read_cache_page_gfp
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% Xorg [kernel.kallsyms] [k] clear_page_c
|
--- clear_page_c
shmem_readpage
do_read_cache_page
read_cache_page_gfp
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_object_bind_to_gtt
i915_gem_execbuffer
drm_ctxbitmap_init
do_vfs_ioctl
sys_ioctl
system_call_fastpath
0x3961ed8af7
0.00% firefox libc-2.13.90.so [.] _int_malloc
|
--- _int_malloc
0.00% firefox [kernel.kallsyms] [k] copy_user_generic_string
|
--- copy_user_generic_string
do_sys_poll
sys_poll
system_call_fastpath
__GI___poll
0.00% swapper [kernel.kallsyms] [k] find_next_bit
|
--- find_next_bit
tick_nohz_stop_sched_tick
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% Xorg [kernel.kallsyms] [k] poll_freewait
|
--- poll_freewait
do_select
core_sys_select
sys_select
system_call_fastpath
0x3961ed91d3
0x42e9aa
0x422e1a
0x3961e2143d
0.00% gnome-shell libc-2.13.90.so [.] __memset_sse2
|
--- __memset_sse2
0.00% kworker/2:0 [kernel.kallsyms] [k] rb_erase
|
--- rb_erase
set_next_entity
pick_next_task_fair
pick_next_task
schedule
worker_thread
kthread
kernel_thread_helper
0.00% gnome-shell libgthread-2.0.so.0.2800.6 [.] 0x22b7
|
--- 0x3f136022b7
0.00% top [kernel.kallsyms] [k] find_pid_ns
|
--- find_pid_ns
find_ge_pid
next_tgid
proc_pid_readdir
proc_root_readdir
vfs_readdir
sys_getdents
system_call_fastpath
__getdents64
0.00% swapper [kernel.kallsyms] [k] virt_to_head_page
|
--- virt_to_head_page
kfree
nf_conntrack_free
destroy_conntrack
nf_conntrack_destroy
nf_conntrack_put
death_by_timeout
run_timer_softirq
__do_softirq
call_softirq
do_softirq
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
rest_init
start_kernel
x86_64_start_reservations
x86_64_start_kernel
0.00% kworker/0:0 [kernel.kallsyms] [k] schedule
|
--- schedule
worker_thread
kthread
kernel_thread_helper
0.00% Xorg [kernel.kallsyms] [k] evdev_read
|
--- evdev_read
vfs_read
sys_read
system_call_fastpath
0x396220e4d0
0.00% swapper [kernel.kallsyms] [k] rcu_needs_cpu_quick_check
|
--- rcu_needs_cpu_quick_check
tick_nohz_stop_sched_tick
irq_exit
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_idle_call
cpu_idle
start_secondary
0.00% gnome-terminal libc-2.13.90.so [.] __malloc
|
--- __malloc
#
# (For a higher level overview, try: perf report --sort comm,dso)
#
[-- Attachment #4: sysrq-m.txt --]
[-- Type: text/plain, Size: 8310 bytes --]
SysRq : Show Memory
Mem-Info:
Node 0 DMA per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
CPU 1: hi: 0, btch: 1 usd: 0
CPU 2: hi: 0, btch: 1 usd: 0
CPU 3: hi: 0, btch: 1 usd: 0
Node 0 DMA32 per-cpu:
CPU 0: hi: 186, btch: 31 usd: 184
CPU 1: hi: 186, btch: 31 usd: 176
CPU 2: hi: 186, btch: 31 usd: 184
CPU 3: hi: 186, btch: 31 usd: 79
Node 0 Normal per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
CPU 1: hi: 0, btch: 1 usd: 0
CPU 2: hi: 0, btch: 1 usd: 0
CPU 3: hi: 0, btch: 1 usd: 0
active_anon:88199 inactive_anon:28952 isolated_anon:0
active_file:40195 inactive_file:308143 isolated_file:0
unevictable:0 dirty:47117 writeback:0 unstable:0
free:206443 slab_reclaimable:15457 slab_unreclaimable:10558
mapped:11745 shmem:27793 pagetables:6649 bounce:0
Node 0 DMA free:12052kB min:352kB low:440kB high:528kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:3700kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15676kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:116kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 2901 2907 2907
Node 0 DMA32 free:813712kB min:67092kB low:83864kB high:100636kB active_anon:352796kB inactive_anon:115808kB active_file:160780kB inactive_file:1228872kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2971428kB mlocked:0kB dirty:188468kB writeback:0kB mapped:46980kB shmem:111172kB slab_reclaimable:61696kB slab_unreclaimable:42128kB kernel_stack:2568kB pagetables:26596kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 5 5
Node 0 Normal free:8kB min:136kB low:168kB high:204kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:6060kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:16kB slab_unreclaimable:104kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 3*4kB 3*8kB 1*16kB 1*32kB 1*64kB 3*128kB 3*256kB 1*512kB 2*1024kB 2*2048kB 1*4096kB = 12052kB
Node 0 DMA32: 386*4kB 319*8kB 603*16kB 391*32kB 172*64kB 2134*128kB 648*256kB 191*512kB 74*1024kB 28*2048kB 26*4096kB = 813712kB
Node 0 Normal: 0*4kB 1*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
376149 total pagecache pages
17 pages in swap cache
Swap cache stats: add 17, delete 0, find 0/0
Free swap = 1507256kB
Total swap = 1507324kB
787952 pages RAM
55736 pages reserved
422306 pages shared
159440 pages non-shared
SysRq : Show Memory
Mem-Info:
Node 0 DMA per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
CPU 1: hi: 0, btch: 1 usd: 0
CPU 2: hi: 0, btch: 1 usd: 0
CPU 3: hi: 0, btch: 1 usd: 0
Node 0 DMA32 per-cpu:
CPU 0: hi: 186, btch: 31 usd: 179
CPU 1: hi: 186, btch: 31 usd: 172
CPU 2: hi: 186, btch: 31 usd: 183
CPU 3: hi: 186, btch: 31 usd: 115
Node 0 Normal per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
CPU 1: hi: 0, btch: 1 usd: 0
CPU 2: hi: 0, btch: 1 usd: 0
CPU 3: hi: 0, btch: 1 usd: 0
active_anon:88210 inactive_anon:29624 isolated_anon:0
active_file:40284 inactive_file:307344 isolated_file:0
unevictable:0 dirty:32 writeback:0 unstable:0
free:206370 slab_reclaimable:15462 slab_unreclaimable:10552
mapped:11747 shmem:28453 pagetables:6649 bounce:0
Node 0 DMA free:12052kB min:352kB low:440kB high:528kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:3700kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15676kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:116kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 2901 2907 2907
Node 0 DMA32 free:813420kB min:67092kB low:83864kB high:100636kB active_anon:352840kB inactive_anon:118496kB active_file:161136kB inactive_file:1225676kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2971428kB mlocked:0kB dirty:128kB writeback:0kB mapped:46988kB shmem:113812kB slab_reclaimable:61716kB slab_unreclaimable:42104kB kernel_stack:2592kB pagetables:26596kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 5 5
Node 0 Normal free:8kB min:136kB low:168kB high:204kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:6060kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:16kB slab_unreclaimable:104kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 3*4kB 3*8kB 1*16kB 1*32kB 1*64kB 3*128kB 3*256kB 1*512kB 2*1024kB 2*2048kB 1*4096kB = 12052kB
Node 0 DMA32: 305*4kB 215*8kB 313*16kB 419*32kB 208*64kB 2140*128kB 652*256kB 192*512kB 74*1024kB 28*2048kB 26*4096kB = 813420kB
Node 0 Normal: 0*4kB 1*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
376098 total pagecache pages
17 pages in swap cache
Swap cache stats: add 17, delete 0, find 0/0
Free swap = 1507256kB
Total swap = 1507324kB
787952 pages RAM
55736 pages reserved
422004 pages shared
159789 pages non-shared
SysRq : Show Memory
Mem-Info:
Node 0 DMA per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
CPU 1: hi: 0, btch: 1 usd: 0
CPU 2: hi: 0, btch: 1 usd: 0
CPU 3: hi: 0, btch: 1 usd: 0
Node 0 DMA32 per-cpu:
CPU 0: hi: 186, btch: 31 usd: 160
CPU 1: hi: 186, btch: 31 usd: 177
CPU 2: hi: 186, btch: 31 usd: 52
CPU 3: hi: 186, btch: 31 usd: 169
Node 0 Normal per-cpu:
CPU 0: hi: 0, btch: 1 usd: 0
CPU 1: hi: 0, btch: 1 usd: 0
CPU 2: hi: 0, btch: 1 usd: 0
CPU 3: hi: 0, btch: 1 usd: 0
active_anon:88229 inactive_anon:30769 isolated_anon:0
active_file:40449 inactive_file:305875 isolated_file:0
unevictable:0 dirty:11 writeback:0 unstable:0
free:206641 slab_reclaimable:15383 slab_unreclaimable:10537
mapped:11772 shmem:29634 pagetables:6689 bounce:0
Node 0 DMA free:12052kB min:352kB low:440kB high:528kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:3700kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15676kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:116kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 2901 2907 2907
Node 0 DMA32 free:814504kB min:67092kB low:83864kB high:100636kB active_anon:352916kB inactive_anon:123076kB active_file:161796kB inactive_file:1219800kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2971428kB mlocked:0kB dirty:44kB writeback:0kB mapped:47088kB shmem:118536kB slab_reclaimable:61400kB slab_unreclaimable:42044kB kernel_stack:2584kB pagetables:26756kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 5 5
Node 0 Normal free:8kB min:136kB low:168kB high:204kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:6060kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:16kB slab_unreclaimable:104kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 3*4kB 3*8kB 1*16kB 1*32kB 1*64kB 3*128kB 3*256kB 1*512kB 2*1024kB 2*2048kB 1*4096kB = 12052kB
Node 0 DMA32: 63*4kB 158*8kB 138*16kB 395*32kB 167*64kB 2155*128kB 668*256kB 197*512kB 74*1024kB 28*2048kB 26*4096kB = 814380kB
Node 0 Normal: 0*4kB 1*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB
375974 total pagecache pages
17 pages in swap cache
Swap cache stats: add 17, delete 0, find 0/0
Free swap = 1507256kB
Total swap = 1507324kB
787952 pages RAM
55736 pages reserved
420622 pages shared
161373 pages non-shared
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 11:59 ` Pádraig Brady
2011-06-21 13:07 ` Mel Gorman
@ 2011-06-21 14:34 ` Mel Gorman
2011-06-21 15:29 ` Pádraig Brady
1 sibling, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-21 14:34 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Tue, Jun 21, 2011 at 12:59:00PM +0100, P?draig Brady wrote:
> On 21/06/11 12:34, Mel Gorman wrote:
> > On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
> >> On 21/06/11 11:39, Mel Gorman wrote:
> >>> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
> >>>> I tried the 2 patches here to no avail:
> >>>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
> >>>>
> >>>> I originally logged this at:
> >>>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
> >>>>
> >>>> I can compile up and quickly test any suggestions.
> >>>>
> >>>
> >>> I recently looked through what kswapd does and there are a number
> >>> of problem areas. Unfortunately, I haven't gotten around to doing
> >>> anything about it yet or running the test cases to see if they are
> >>> really problems. In your case, the following is a strong possibility
> >>> though. This should be applied on top of the two patches merged from
> >>> that thread.
> >>>
> >>> This is not tested in any way, based on 3.0-rc3
> >>
> >> This does not fix the issue here.
> >>
> >
> > I made a silly mistake here. When you mentioned two patches applied,
> > I assumed you meant two patches that were finally merged from that
> > discussion thread instead of looking at your linked mail. Now that I
> > have checked, I think you applied the SLUB patches while the patches
> > I was thinking of are;
> >
> > [afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
> > [f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
> >
> > The first one in particular has been reported by another user to fix
> > hangs related to copying large files. I'm assuming you are testing
> > against the Fedora kernel. As these patches were merged for 3.0-rc1, can
> > you check if applying just these two patches to your kernel helps?
>
> These patches are already present in my 2.6.38.8-32.fc15.x86_64 kernel :(
>
While doing a review of patches for unrelated reasons between 2.6.38
and 3.0-rc3, I noted a few patches related to high CPU usage that may
not have made it to the Fedora kernel.
* d527caf2 mm: compaction: prevent kswapd compacting memory to reduce CPU usage
8afdcece mm: vmscan: kswapd should not free an excessive number of pages when balancing small zones
602605a4 mm: compaction: minimise the time IRQs are disabled while isolating free pages
b2eef8c0 mm: compaction: minimise the time IRQs are disabled while isolating pages for migration
* 929bea7c vmscan: all_unreclaimable() use zone->all_unreclaimable as a name
* afc7e326 mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely
* f06590bd mm: vmscan: correctly check if reclaimer should schedule during shrink_slab
The ones marked * are already in 2.6.38.8 so presumably in the Fedora
kernel as well but worth double checking. Of the remaining patches,
patch 2 is the most relevant to your problem as it was explicitly
targeted at reclaiming during copying large amounts of data.
--
Mel Gorman
SUSE Labs
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 14:34 ` Mel Gorman
@ 2011-06-21 15:29 ` Pádraig Brady
0 siblings, 0 replies; 21+ messages in thread
From: Pádraig Brady @ 2011-06-21 15:29 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
On 21/06/11 15:34, Mel Gorman wrote:
> On Tue, Jun 21, 2011 at 12:59:00PM +0100, P?draig Brady wrote:
>> On 21/06/11 12:34, Mel Gorman wrote:
>>> On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
>>>> On 21/06/11 11:39, Mel Gorman wrote:
>>>>> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
>>>>>> I tried the 2 patches here to no avail:
>>>>>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
>>>>>>
>>>>>> I originally logged this at:
>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
>>>>>>
>>>>>> I can compile up and quickly test any suggestions.
>>>>>>
>>>>>
>>>>> I recently looked through what kswapd does and there are a number
>>>>> of problem areas. Unfortunately, I haven't gotten around to doing
>>>>> anything about it yet or running the test cases to see if they are
>>>>> really problems. In your case, the following is a strong possibility
>>>>> though. This should be applied on top of the two patches merged from
>>>>> that thread.
>>>>>
>>>>> This is not tested in any way, based on 3.0-rc3
>>>>
>>>> This does not fix the issue here.
>>>>
>>>
>>> I made a silly mistake here. When you mentioned two patches applied,
>>> I assumed you meant two patches that were finally merged from that
>>> discussion thread instead of looking at your linked mail. Now that I
>>> have checked, I think you applied the SLUB patches while the patches
>>> I was thinking of are;
>>>
>>> [afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
>>> [f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
>>>
>>> The first one in particular has been reported by another user to fix
>>> hangs related to copying large files. I'm assuming you are testing
>>> against the Fedora kernel. As these patches were merged for 3.0-rc1, can
>>> you check if applying just these two patches to your kernel helps?
>>
>> These patches are already present in my 2.6.38.8-32.fc15.x86_64 kernel :(
>>
>
> While doing a review of patches for unrelated reasons between 2.6.38
> and 3.0-rc3, I noted a few patches related to high CPU usage that may
> not have made it to the Fedora kernel.
>
> * d527caf2 mm: compaction: prevent kswapd compacting memory to reduce CPU usage
> * 929bea7c vmscan: all_unreclaimable() use zone->all_unreclaimable as a name
> * afc7e326 mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely
> * f06590bd mm: vmscan: correctly check if reclaimer should schedule during shrink_slab
Those were already applied, yes.
> 8afdcece mm: vmscan: kswapd should not free an excessive number of pages when balancing small zones
> 602605a4 mm: compaction: minimise the time IRQs are disabled while isolating free pages
> b2eef8c0 mm: compaction: minimise the time IRQs are disabled while isolating pages for migration
The above had no effect.
cheers,
Padraig.
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 14:23 ` Pádraig Brady
@ 2011-06-22 9:44 ` Mel Gorman
2011-06-22 10:19 ` Pádraig Brady
2011-06-24 6:33 ` Shaohua Li
1 sibling, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-22 9:44 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Tue, Jun 21, 2011 at 03:23:41PM +0100, P?draig Brady wrote:
> On 21/06/11 14:07, Mel Gorman wrote:
> > On Tue, Jun 21, 2011 at 12:59:00PM +0100, P?draig Brady wrote:
> >> On 21/06/11 12:34, Mel Gorman wrote:
> >>> On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
> >>>> On 21/06/11 11:39, Mel Gorman wrote:
> >>>>> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
> >>>>>> I tried the 2 patches here to no avail:
> >>>>>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
> >>>>>>
> >>>>>> I originally logged this at:
> >>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
> >>>>>>
> >>>>>> I can compile up and quickly test any suggestions.
> >>>>>>
> >>>>>
> >>>>> I recently looked through what kswapd does and there are a number
> >>>>> of problem areas. Unfortunately, I haven't gotten around to doing
> >>>>> anything about it yet or running the test cases to see if they are
> >>>>> really problems. In your case, the following is a strong possibility
> >>>>> though. This should be applied on top of the two patches merged from
> >>>>> that thread.
> >>>>>
> >>>>> This is not tested in any way, based on 3.0-rc3
> >>>>
> >>>> This does not fix the issue here.
> >>>>
> >>>
> >>> I made a silly mistake here. When you mentioned two patches applied,
> >>> I assumed you meant two patches that were finally merged from that
> >>> discussion thread instead of looking at your linked mail. Now that I
> >>> have checked, I think you applied the SLUB patches while the patches
> >>> I was thinking of are;
> >>>
> >>> [afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
> >>> [f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
> >>>
> >>> The first one in particular has been reported by another user to fix
> >>> hangs related to copying large files. I'm assuming you are testing
> >>> against the Fedora kernel. As these patches were merged for 3.0-rc1, can
> >>> you check if applying just these two patches to your kernel helps?
> >>
> >> These patches are already present in my 2.6.38.8-32.fc15.x86_64 kernel :(
> >>
> >
> > Would it be possible to record a profile while it is livelocked to check
> > if it's stuck in this loop in shrink_slab()?
>
> I did:
>
I haven't started looking at this properly yet (stuck with other
bugs unfortunately) but I glanced at the sysrq message and on a 2G
64-bit machine, you have a tiny Normal zone! This is very unexpected.
Can you boot with mminit_loglevel=4 loglevel=9 and post your full
dmesg please? I want to see what the memory layout of this thing
looks like to see in the future if there is a correlation between
this type of bug and a tiny highest zone.
Broadly speaking though from seeing that, it reminds me of a
similar bug where small zones could keep kswapd alive for high-order
allocations reclaiming slab constantly. I suspect on your machine
that the Normal zone cannot be balanced for order-0 allocations and
is keeping kswapd awake.
Can you try booting with mem=1792M and if the Normal zone disappears,
try reproducing the bug?
--
Mel Gorman
SUSE Labs
--
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-22 9:44 ` Mel Gorman
@ 2011-06-22 10:19 ` Pádraig Brady
2011-06-23 11:46 ` Mel Gorman
0 siblings, 1 reply; 21+ messages in thread
From: Pádraig Brady @ 2011-06-22 10:19 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
[-- Attachment #1: Type: text/plain, Size: 1050 bytes --]
On 22/06/11 10:44, Mel Gorman wrote:
> I haven't started looking at this properly yet (stuck with other
> bugs unfortunately) but I glanced at the sysrq message and on a 2G
> 64-bit machine, you have a tiny Normal zone! This is very unexpected.
> Can you boot with mminit_loglevel=4 loglevel=9 and post your full
> dmesg please? I want to see what the memory layout of this thing
> looks like to see in the future if there is a correlation between
> this type of bug and a tiny highest zone.
Note this machine has 3G RAM
dmesg attached
>
> Broadly speaking though from seeing that, it reminds me of a
> similar bug where small zones could keep kswapd alive for high-order
> allocations reclaiming slab constantly. I suspect on your machine
> that the Normal zone cannot be balanced for order-0 allocations and
> is keeping kswapd awake.
>
> Can you try booting with mem=1792M and if the Normal zone disappears,
> try reproducing the bug?
>
I tried mem=1792M but grub gave an ENOSPC error
Maybe I need to supply a memmap= too?
cheers,
Padraig.
[-- Attachment #2: mm-debug.dmesg --]
[-- Type: text/plain, Size: 77821 bytes --]
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.38.8-32.fc15.x86_64 (padraig@pb-n5110) (gcc version 4.6.0 20110509 (Red Hat 4.6.0-7) (GCC) ) #5 SMP Tue Jun 21 16:24:12 IST 2011
[ 0.000000] Command line: ro root=UUID=da48811c-7aeb-4514-8c75-a56a82bba9fa rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=uk rhgb quiet mminit_loglevel=4 loglevel=9
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009d400 (usable)
[ 0.000000] BIOS-e820: 000000000009d400 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 0000000020000000 (usable)
[ 0.000000] BIOS-e820: 0000000020000000 - 0000000020200000 (reserved)
[ 0.000000] BIOS-e820: 0000000020200000 - 0000000040000000 (usable)
[ 0.000000] BIOS-e820: 0000000040000000 - 0000000040200000 (reserved)
[ 0.000000] BIOS-e820: 0000000040200000 - 00000000b9ce3000 (usable)
[ 0.000000] BIOS-e820: 00000000b9ce3000 - 00000000b9d26000 (ACPI NVS)
[ 0.000000] BIOS-e820: 00000000b9d26000 - 00000000b9f92000 (usable)
[ 0.000000] BIOS-e820: 00000000b9f92000 - 00000000ba167000 (reserved)
[ 0.000000] BIOS-e820: 00000000ba167000 - 00000000ba3a9000 (usable)
[ 0.000000] BIOS-e820: 00000000ba3a9000 - 00000000ba568000 (reserved)
[ 0.000000] BIOS-e820: 00000000ba568000 - 00000000ba7e8000 (ACPI NVS)
[ 0.000000] BIOS-e820: 00000000ba7e8000 - 00000000ba800000 (ACPI data)
[ 0.000000] BIOS-e820: 00000000bb000000 - 00000000bf200000 (reserved)
[ 0.000000] BIOS-e820: 00000000f8000000 - 00000000fc000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
[ 0.000000] BIOS-e820: 00000000fed00000 - 00000000fed04000 (reserved)
[ 0.000000] BIOS-e820: 00000000fed1c000 - 00000000fed20000 (reserved)
[ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
[ 0.000000] BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved)
[ 0.000000] BIOS-e820: 0000000100000000 - 0000000100600000 (usable)
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] DMI 2.6 present.
[ 0.000000] DMI: Dell Inc. Inspiron N5110/034W60, BIOS A03 03/16/2011
[ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved)
[ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
[ 0.000000] No AGP bridge found
[ 0.000000] last_pfn = 0x100600 max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: uncachable
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-BFFFF uncachable
[ 0.000000] C0000-CFFFF write-protect
[ 0.000000] D0000-E7FFF uncachable
[ 0.000000] E8000-FFFFF write-protect
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 000000000 mask F00000000 write-back
[ 0.000000] 1 base 100000000 mask FFFC00000 write-back
[ 0.000000] 2 base 100400000 mask FFFE00000 write-back
[ 0.000000] 3 base 0BB000000 mask FFF000000 uncachable
[ 0.000000] 4 base 0BC000000 mask FFC000000 uncachable
[ 0.000000] 5 base 0C0000000 mask FC0000000 uncachable
[ 0.000000] 6 disabled
[ 0.000000] 7 disabled
[ 0.000000] 8 disabled
[ 0.000000] 9 disabled
[ 0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[ 0.000000] original variable MTRRs
[ 0.000000] reg 0, base: 0GB, range: 4GB, type WB
[ 0.000000] reg 1, base: 4GB, range: 4MB, type WB
[ 0.000000] reg 2, base: 4100MB, range: 2MB, type WB
[ 0.000000] reg 3, base: 2992MB, range: 16MB, type UC
[ 0.000000] reg 4, base: 3008MB, range: 64MB, type UC
[ 0.000000] reg 5, base: 3GB, range: 1GB, type UC
[ 0.000000] total RAM covered: 2998M
[ 0.000000] Found optimal setting for mtrr clean up
[ 0.000000] gran_size: 64K chunk_size: 128M num_reg: 6 lose cover RAM: 0G
[ 0.000000] New variable MTRRs
[ 0.000000] reg 0, base: 0GB, range: 2GB, type WB
[ 0.000000] reg 1, base: 2GB, range: 1GB, type WB
[ 0.000000] reg 2, base: 2992MB, range: 16MB, type UC
[ 0.000000] reg 3, base: 3008MB, range: 64MB, type UC
[ 0.000000] reg 4, base: 4GB, range: 4MB, type WB
[ 0.000000] reg 5, base: 4100MB, range: 2MB, type WB
[ 0.000000] e820 update range: 00000000bb000000 - 0000000100000000 (usable) ==> (reserved)
[ 0.000000] last_pfn = 0xba3a9 max_arch_pfn = 0x400000000
[ 0.000000] found SMP MP-table at [ffff8800000fd1e0] fd1e0
[ 0.000000] initial memory mapped : 0 - 20000000
[ 0.000000] init_memory_mapping: 0000000000000000-00000000ba3a9000
[ 0.000000] 0000000000 - 00ba200000 page 2M
[ 0.000000] 00ba200000 - 00ba3a9000 page 4k
[ 0.000000] kernel direct mapping tables up to ba3a9000 @ 1fffb000-20000000
[ 0.000000] init_memory_mapping: 0000000100000000-0000000100600000
[ 0.000000] 0100000000 - 0100600000 page 2M
[ 0.000000] kernel direct mapping tables up to 100600000 @ ba3a3000-ba3a9000
[ 0.000000] RAMDISK: 1f1ad000 - 1fff0000
[ 0.000000] ACPI: RSDP 00000000000f0410 00024 (v02 DELL)
[ 0.000000] ACPI: XSDT 00000000ba7e8078 0006C (v01 DELL WN09 01072009 AMI 00010013)
[ 0.000000] ACPI: FACP 00000000ba7f1c40 000F4 (v04 DELL WN09 01072009 AMI 00010013)
[ 0.000000] ACPI: DSDT 00000000ba7e8170 09ACE (v02 DELL WN09 00000000 INTL 20051117)
[ 0.000000] ACPI: FACS 00000000ba7e3f80 00040
[ 0.000000] ACPI: APIC 00000000ba7f1d38 00072 (v03 DELL WN09 01072009 AMI 00010013)
[ 0.000000] ACPI: MCFG 00000000ba7f1db0 0003C (v01 DELL WN09 01072009 MSFT 00000097)
[ 0.000000] ACPI: SSDT 00000000ba7f1df0 004B0 (v01 TrmRef PtidDevc 00001000 INTL 20091112)
[ 0.000000] ACPI: SLIC 00000000ba7f22a0 00176 (v01 DELL WN09 01072009 AMI 00010013)
[ 0.000000] ACPI: HPET 00000000ba7f2418 00038 (v01 DELL WN09 01072009 AMI. 00000004)
[ 0.000000] ACPI: SSDT 00000000ba7f2450 0090C (v01 PmRef Cpu0Ist 00003000 INTL 20051117)
[ 0.000000] ACPI: SSDT 00000000ba7f2d60 00996 (v01 PmRef CpuPm 00003000 INTL 20051117)
[ 0.000000] ACPI: OSFR 00000000ba7f36f8 00086 (v01 DELL M08 07DB0310 ASL 00000061)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at 0000000000000000-0000000100600000
[ 0.000000] mminit::memory_register Entering add_active_range(0, 0x10, 0x9d) 0 entries of 25600 used
[ 0.000000] mminit::memory_register Entering add_active_range(0, 0x100, 0x20000) 1 entries of 25600 used
[ 0.000000] mminit::memory_register Entering add_active_range(0, 0x20200, 0x40000) 2 entries of 25600 used
[ 0.000000] mminit::memory_register Entering add_active_range(0, 0x40200, 0xb9ce3) 3 entries of 25600 used
[ 0.000000] mminit::memory_register Entering add_active_range(0, 0xb9d26, 0xb9f92) 4 entries of 25600 used
[ 0.000000] mminit::memory_register Entering add_active_range(0, 0xba167, 0xba3a9) 5 entries of 25600 used
[ 0.000000] mminit::memory_register Entering add_active_range(0, 0x100000, 0x100600) 6 entries of 25600 used
[ 0.000000] Initmem setup node 0 0000000000000000-0000000100600000
[ 0.000000] NODE_DATA [00000001005ec000 - 00000001005fffff]
[ 0.000000] [ffffea0000000000-ffffea00039fffff] PMD -> [ffff88001b600000-ffff88001e1fffff] on node 0
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000010 -> 0x00001000
[ 0.000000] DMA32 0x00001000 -> 0x00100000
[ 0.000000] Normal 0x00100000 -> 0x00100600
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[7] active PFN ranges
[ 0.000000] 0: 0x00000010 -> 0x0000009d
[ 0.000000] 0: 0x00000100 -> 0x00020000
[ 0.000000] 0: 0x00020200 -> 0x00040000
[ 0.000000] 0: 0x00040200 -> 0x000b9ce3
[ 0.000000] 0: 0x000b9d26 -> 0x000b9f92
[ 0.000000] 0: 0x000ba167 -> 0x000ba3a9
[ 0.000000] 0: 0x00100000 -> 0x00100600
[ 0.000000] mminit::pageflags_layout_widths Section 0 Node 9 Zone 2 Flags 25
[ 0.000000] mminit::pageflags_layout_shifts Section 19 Node 9 Zone 2
[ 0.000000] mminit::pageflags_layout_offsets Section 0 Node 55 Zone 53
[ 0.000000] mminit::pageflags_layout_zoneid Zone ID: 53 -> 64
[ 0.000000] mminit::pageflags_layout_usage location: 64 -> 53 unused 53 -> 25 flags 25 -> 0
[ 0.000000] On node 0 totalpages: 762654
[ 0.000000] DMA zone: 56 pages used for memmap
[ 0.000000] DMA zone: 6 pages reserved
[ 0.000000] DMA zone: 3919 pages, LIFO batch:0
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 0 pfns 16 -> 4096
[ 0.000000] DMA32 zone: 14280 pages used for memmap
[ 0.000000] DMA32 zone: 742857 pages, LIFO batch:31
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 1 pfns 4096 -> 1048576
[ 0.000000] Normal zone: 21 pages used for memmap
[ 0.000000] Normal zone: 1515 pages, LIFO batch:0
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 2 pfns 1048576 -> 1050112
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
[ 0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs
[ 0.000000] nr_irqs_gsi: 40
[ 0.000000] PM: Registered nosave memory: 000000000009d000 - 000000000009e000
[ 0.000000] PM: Registered nosave memory: 000000000009e000 - 00000000000a0000
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
[ 0.000000] PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
[ 0.000000] PM: Registered nosave memory: 0000000020000000 - 0000000020200000
[ 0.000000] PM: Registered nosave memory: 0000000040000000 - 0000000040200000
[ 0.000000] PM: Registered nosave memory: 00000000b9ce3000 - 00000000b9d26000
[ 0.000000] PM: Registered nosave memory: 00000000b9f92000 - 00000000ba167000
[ 0.000000] PM: Registered nosave memory: 00000000ba3a9000 - 00000000ba568000
[ 0.000000] PM: Registered nosave memory: 00000000ba568000 - 00000000ba7e8000
[ 0.000000] PM: Registered nosave memory: 00000000ba7e8000 - 00000000ba800000
[ 0.000000] PM: Registered nosave memory: 00000000ba800000 - 00000000bb000000
[ 0.000000] PM: Registered nosave memory: 00000000bb000000 - 00000000bf200000
[ 0.000000] PM: Registered nosave memory: 00000000bf200000 - 00000000f8000000
[ 0.000000] PM: Registered nosave memory: 00000000f8000000 - 00000000fc000000
[ 0.000000] PM: Registered nosave memory: 00000000fc000000 - 00000000fec00000
[ 0.000000] PM: Registered nosave memory: 00000000fec00000 - 00000000fec01000
[ 0.000000] PM: Registered nosave memory: 00000000fec01000 - 00000000fed00000
[ 0.000000] PM: Registered nosave memory: 00000000fed00000 - 00000000fed04000
[ 0.000000] PM: Registered nosave memory: 00000000fed04000 - 00000000fed1c000
[ 0.000000] PM: Registered nosave memory: 00000000fed1c000 - 00000000fed20000
[ 0.000000] PM: Registered nosave memory: 00000000fed20000 - 00000000fee00000
[ 0.000000] PM: Registered nosave memory: 00000000fee00000 - 00000000fee01000
[ 0.000000] PM: Registered nosave memory: 00000000fee01000 - 00000000ff000000
[ 0.000000] PM: Registered nosave memory: 00000000ff000000 - 0000000100000000
[ 0.000000] Allocating PCI resources starting at bf200000 (gap: bf200000:38e00000)
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:4 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff88001ee00000 s83200 r8192 d23296 u524288
[ 0.000000] pcpu-alloc: s83200 r8192 d23296 u524288 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1 2 3
[ 0.000000] mminit::zonelist general 0:DMA = 0:DMA
[ 0.000000] mminit::zonelist general 0:DMA32 = 0:DMA32 0:DMA
[ 0.000000] mminit::zonelist general 0:Normal = 0:Normal 0:DMA32 0:DMA
[ 0.000000] mminit::zonelist thisnode 0:DMA = 0:DMA
[ 0.000000] mminit::zonelist thisnode 0:DMA32 = 0:DMA32 0:DMA
[ 0.000000] mminit::zonelist thisnode 0:Normal = 0:Normal 0:DMA32 0:DMA
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 748291
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: ro root=UUID=da48811c-7aeb-4514-8c75-a56a82bba9fa rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=uk rhgb quiet mminit_loglevel=4 loglevel=9
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] xsave/xrstor: enabled xstate_bv 0x7, cntxt size 0x340
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Calgary: detecting Calgary via BIOS EBDA area
[ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[ 0.000000] Memory: 2910064k/4200448k available (4601k kernel code, 1149832k absent, 140552k reserved, 6925k data, 948k init)
[ 0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] RCU-based detection of stalled CPUs is disabled.
[ 0.000000] NR_IRQS:16640 nr_irqs:712 16
[ 0.000000] Extended CMOS year: 2000
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] allocated 32768000 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000000] hpet clockevent registered
[ 0.000000] Fast TSC calibration using PIT
[ 0.001000] Detected 2095.510 MHz processor.
[ 0.000003] Calibrating delay loop (skipped), value calculated using timer frequency.. 4191.02 BogoMIPS (lpj=2095510)
[ 0.000202] pid_max: default: 32768 minimum: 301
[ 0.000327] Security Framework initialized
[ 0.000430] SELinux: Initializing.
[ 0.000533] SELinux: Starting in permissive mode
[ 0.001243] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[ 0.002631] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.003230] Mount-cache hash table entries: 256
[ 0.003464] Initializing cgroup subsys ns
[ 0.003564] ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup.
[ 0.003734] Initializing cgroup subsys cpuacct
[ 0.003836] Initializing cgroup subsys memory
[ 0.003946] Initializing cgroup subsys devices
[ 0.004045] Initializing cgroup subsys freezer
[ 0.004144] Initializing cgroup subsys net_cls
[ 0.004242] Initializing cgroup subsys blkio
[ 0.004373] CPU: Physical Processor ID: 0
[ 0.004470] CPU: Processor Core ID: 0
[ 0.004572] mce: CPU supports 7 MCE banks
[ 0.004691] CPU0: Thermal monitoring enabled (TM1)
[ 0.004797] using mwait in idle threads.
[ 0.005439] ACPI: Core revision 20110112
[ 0.022531] ftrace: allocating 23799 entries in 94 pages
[ 0.032404] Not enabling x2apic, Intr-remapping init failed.
[ 0.032507] Setting APIC routing to flat
[ 0.032969] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.043058] CPU0: Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz stepping 07
[ 0.144445] Performance Events: PEBS fmt1+, SandyBridge events, Intel PMU driver.
[ 0.144720] ... version: 3
[ 0.144817] ... bit width: 48
[ 0.144914] ... generic registers: 4
[ 0.145011] ... value mask: 0000ffffffffffff
[ 0.145111] ... max period: 000000007fffffff
[ 0.145210] ... fixed-purpose events: 3
[ 0.145306] ... event mask: 000000070000000f
[ 0.145789] NMI watchdog enabled, takes one hw-pmu counter.
[ 0.145982] Booting Node 0, Processors #1
[ 0.236456] NMI watchdog enabled, takes one hw-pmu counter.
[ 0.236745] #2
[ 0.327288] NMI watchdog enabled, takes one hw-pmu counter.
[ 0.327579] #3 Ok.
[ 0.418147] NMI watchdog enabled, takes one hw-pmu counter.
[ 0.418279] Brought up 4 CPUs
[ 0.418376] Total of 4 processors activated (16760.87 BogoMIPS).
[ 0.421342] sizeof(vma)=184 bytes
[ 0.421441] sizeof(page)=56 bytes
[ 0.421536] sizeof(inode)=600 bytes
[ 0.421633] sizeof(dentry)=192 bytes
[ 0.421728] sizeof(ext3inode)=816 bytes
[ 0.421824] sizeof(ext4inode)=920 bytes
[ 0.421921] sizeof(buffer_head)=104 bytes
[ 0.422020] sizeof(skbuff)=240 bytes
[ 0.422116] sizeof(task_struct)=5928 bytes
[ 0.422367] devtmpfs: initialized
[ 0.426572] atomic64 test passed for x86-64 platform with CX8 and with SSE
[ 0.426706] Time: 10:01:01 Date: 06/22/11
[ 0.426836] NET: Registered protocol family 16
[ 0.427106] ACPI: bus type pci registered
[ 0.427279] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[ 0.427436] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[ 0.435759] PCI: Using configuration type 1 for base access
[ 0.436908] bio: create slab <bio-0> at 0
[ 0.438620] ACPI: EC: Look up EC in DSDT
[ 0.440353] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.446149] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 0.453775] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 0.454357] ACPI: SSDT 00000000ba551698 0064F (v01 PmRef Cpu0Cst 00003001 INTL 20051117)
[ 0.454987] ACPI: Dynamic OEM Table Load:
[ 0.455166] ACPI: SSDT (null) 0064F (v01 PmRef Cpu0Cst 00003001 INTL 20051117)
[ 0.458346] ACPI: SSDT 00000000ba552a98 00303 (v01 PmRef ApIst 00003000 INTL 20051117)
[ 0.459024] ACPI: Dynamic OEM Table Load:
[ 0.459202] ACPI: SSDT (null) 00303 (v01 PmRef ApIst 00003000 INTL 20051117)
[ 0.463155] ACPI: SSDT 00000000ba550d98 00119 (v01 PmRef ApCst 00003000 INTL 20051117)
[ 0.463773] ACPI: Dynamic OEM Table Load:
[ 0.463953] ACPI: SSDT (null) 00119 (v01 PmRef ApCst 00003000 INTL 20051117)
[ 0.468687] ACPI: Interpreter enabled
[ 0.468787] ACPI: (supports S0 S1 S3 S4 S5)
[ 0.469115] ACPI: Using IOAPIC for interrupt routing
[ 0.504148] ACPI: No dock devices found.
[ 0.504247] HEST: Table not found.
[ 0.504344] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.504897] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
[ 0.505573] pci_root PNP0A08:00: host bridge window [io 0x0000-0x0cf7]
[ 0.505676] pci_root PNP0A08:00: host bridge window [io 0x0d00-0xffff]
[ 0.505779] pci_root PNP0A08:00: host bridge window [mem 0x000a0000-0x000bffff]
[ 0.505937] pci_root PNP0A08:00: host bridge window [mem 0x000d0000-0x000d3fff]
[ 0.506091] pci_root PNP0A08:00: host bridge window [mem 0x000d4000-0x000d7fff]
[ 0.506245] pci_root PNP0A08:00: host bridge window [mem 0x000d8000-0x000dbfff]
[ 0.506397] pci_root PNP0A08:00: host bridge window [mem 0x000dc000-0x000dffff]
[ 0.506549] pci_root PNP0A08:00: host bridge window [mem 0x000e0000-0x000e3fff]
[ 0.506703] pci_root PNP0A08:00: host bridge window [mem 0x000e4000-0x000e7fff]
[ 0.506859] pci_root PNP0A08:00: host bridge window [mem 0xbf200000-0xfeafffff]
[ 0.507011] pci_root PNP0A08:00: host bridge window [mem 0xfed40000-0xfed44fff]
[ 0.507175] pci 0000:00:00.0: [8086:0104] type 0 class 0x000600
[ 0.507312] pci 0000:00:02.0: [8086:0116] type 0 class 0x000300
[ 0.507422] pci 0000:00:02.0: reg 10: [mem 0xf6800000-0xf6bfffff 64bit]
[ 0.507529] pci 0000:00:02.0: reg 18: [mem 0xe0000000-0xefffffff 64bit pref]
[ 0.507635] pci 0000:00:02.0: reg 20: [io 0xf000-0xf03f]
[ 0.507788] pci 0000:00:16.0: [8086:1c3a] type 0 class 0x000780
[ 0.507913] pci 0000:00:16.0: reg 10: [mem 0xf7f0a000-0xf7f0a00f 64bit]
[ 0.508078] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
[ 0.508182] pci 0000:00:16.0: PME# disabled
[ 0.508315] pci 0000:00:1a.0: [8086:1c2d] type 0 class 0x000c03
[ 0.508436] pci 0000:00:1a.0: reg 10: [mem 0xf7f08000-0xf7f083ff]
[ 0.508613] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
[ 0.508716] pci 0000:00:1a.0: PME# disabled
[ 0.508841] pci 0000:00:1b.0: [8086:1c20] type 0 class 0x000403
[ 0.508959] pci 0000:00:1b.0: reg 10: [mem 0xf7f00000-0xf7f03fff 64bit]
[ 0.510503] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[ 0.510607] pci 0000:00:1b.0: PME# disabled
[ 0.510726] pci 0000:00:1c.0: [8086:1c10] type 1 class 0x000604
[ 0.510895] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[ 0.510999] pci 0000:00:1c.0: PME# disabled
[ 0.511120] pci 0000:00:1c.1: [8086:1c12] type 1 class 0x000604
[ 0.511285] pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold
[ 0.511388] pci 0000:00:1c.1: PME# disabled
[ 0.511509] pci 0000:00:1c.3: [8086:1c16] type 1 class 0x000604
[ 0.511674] pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold
[ 0.511779] pci 0000:00:1c.3: PME# disabled
[ 0.511902] pci 0000:00:1c.4: [8086:1c18] type 1 class 0x000604
[ 0.512069] pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
[ 0.512171] pci 0000:00:1c.4: PME# disabled
[ 0.512295] pci 0000:00:1c.7: [8086:1c1e] type 1 class 0x000604
[ 0.512458] pci 0000:00:1c.7: PME# supported from D0 D3hot D3cold
[ 0.512562] pci 0000:00:1c.7: PME# disabled
[ 0.512688] pci 0000:00:1d.0: [8086:1c26] type 0 class 0x000c03
[ 0.512810] pci 0000:00:1d.0: reg 10: [mem 0xf7f07000-0xf7f073ff]
[ 0.512991] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
[ 0.513095] pci 0000:00:1d.0: PME# disabled
[ 0.513217] pci 0000:00:1f.0: [8086:1c4b] type 0 class 0x000601
[ 0.513439] pci 0000:00:1f.2: [8086:1c03] type 0 class 0x000106
[ 0.513559] pci 0000:00:1f.2: reg 10: [io 0xf0b0-0xf0b7]
[ 0.513665] pci 0000:00:1f.2: reg 14: [io 0xf0a0-0xf0a3]
[ 0.513772] pci 0000:00:1f.2: reg 18: [io 0xf090-0xf097]
[ 0.513882] pci 0000:00:1f.2: reg 1c: [io 0xf080-0xf083]
[ 0.513988] pci 0000:00:1f.2: reg 20: [io 0xf060-0xf07f]
[ 0.514095] pci 0000:00:1f.2: reg 24: [mem 0xf7f06000-0xf7f067ff]
[ 0.514230] pci 0000:00:1f.2: PME# supported from D3hot
[ 0.514332] pci 0000:00:1f.2: PME# disabled
[ 0.514446] pci 0000:00:1f.3: [8086:1c22] type 0 class 0x000c05
[ 0.514562] pci 0000:00:1f.3: reg 10: [mem 0xf7f05000-0xf7f050ff 64bit]
[ 0.514685] pci 0000:00:1f.3: reg 20: [io 0xf040-0xf05f]
[ 0.514866] pci 0000:00:1c.0: PCI bridge to [bus 03-04]
[ 0.514970] pci 0000:00:1c.0: bridge window [io 0xf000-0x0000] (disabled)
[ 0.515078] pci 0000:00:1c.0: bridge window [mem 0xfff00000-0x000fffff] (disabled)
[ 0.515236] pci 0000:00:1c.0: bridge window [mem 0xfff00000-0x000fffff pref] (disabled)
[ 0.515459] pci 0000:05:00.0: [10ec:8136] type 0 class 0x000200
[ 0.515578] pci 0000:05:00.0: reg 10: [io 0xe000-0xe0ff]
[ 0.515712] pci 0000:05:00.0: reg 18: [mem 0xf1104000-0xf1104fff 64bit pref]
[ 0.515837] pci 0000:05:00.0: reg 20: [mem 0xf1100000-0xf1103fff 64bit pref]
[ 0.516004] pci 0000:05:00.0: supports D1 D2
[ 0.516102] pci 0000:05:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.516208] pci 0000:05:00.0: PME# disabled
[ 0.517876] pci 0000:00:1c.1: PCI bridge to [bus 05-06]
[ 0.518022] pci 0000:00:1c.1: bridge window [io 0xe000-0xefff]
[ 0.518123] pci 0000:00:1c.1: bridge window [mem 0xfff00000-0x000fffff] (disabled)
[ 0.518283] pci 0000:00:1c.1: bridge window [mem 0xf1100000-0xf11fffff 64bit pref]
[ 0.518633] pci 0000:09:00.0: [8086:008a] type 0 class 0x000280
[ 0.518895] pci 0000:09:00.0: reg 10: [mem 0xf7e00000-0xf7e01fff 64bit]
[ 0.519570] pci 0000:09:00.0: PME# supported from D0 D3hot D3cold
[ 0.519704] pci 0000:09:00.0: PME# disabled
[ 0.521980] pci 0000:00:1c.3: PCI bridge to [bus 09-0a]
[ 0.522097] pci 0000:00:1c.3: bridge window [io 0xf000-0x0000] (disabled)
[ 0.522202] pci 0000:00:1c.3: bridge window [mem 0xf7e00000-0xf7efffff]
[ 0.522309] pci 0000:00:1c.3: bridge window [mem 0xfff00000-0x000fffff pref] (disabled)
[ 0.522534] pci 0000:0b:00.0: [1033:0194] type 0 class 0x000c03
[ 0.522660] pci 0000:0b:00.0: reg 10: [mem 0xf7d00000-0xf7d01fff 64bit]
[ 0.522875] pci 0000:0b:00.0: PME# supported from D0 D3hot D3cold
[ 0.522980] pci 0000:0b:00.0: PME# disabled
[ 0.524860] pci 0000:00:1c.4: PCI bridge to [bus 0b-0c]
[ 0.525006] pci 0000:00:1c.4: bridge window [io 0xf000-0x0000] (disabled)
[ 0.525110] pci 0000:00:1c.4: bridge window [mem 0xf7d00000-0xf7dfffff]
[ 0.525217] pci 0000:00:1c.4: bridge window [mem 0xfff00000-0x000fffff pref] (disabled)
[ 0.525419] pci 0000:00:1c.7: PCI bridge to [bus 11-1f]
[ 0.525521] pci 0000:00:1c.7: bridge window [io 0xc000-0xdfff]
[ 0.525624] pci 0000:00:1c.7: bridge window [mem 0xf6c00000-0xf7cfffff]
[ 0.525732] pci 0000:00:1c.7: bridge window [mem 0xf0000000-0xf10fffff 64bit pref]
[ 0.525915] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[ 0.526224] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP01._PRT]
[ 0.526371] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP02._PRT]
[ 0.526518] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP04._PRT]
[ 0.526663] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP05._PRT]
[ 0.526813] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP08._PRT]
[ 0.527085] pci0000:00: Requesting ACPI _OSC control (0x1d)
[ 0.527345] pci0000:00: ACPI _OSC control (0x1d) granted
[ 0.531992] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 0.532582] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 *5 6 10 11 12 14 15)
[ 0.533177] ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 10 11 12 14 15)
[ 0.533761] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 *10 11 12 14 15)
[ 0.534352] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.535076] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.535797] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 *5 6 10 11 12 14 15)
[ 0.536388] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 *5 6 10 11 12 14 15)
[ 0.537023] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[ 0.537184] vgaarb: loaded
[ 0.537357] SCSI subsystem initialized
[ 0.537505] libata version 3.00 loaded.
[ 0.537650] usbcore: registered new interface driver usbfs
[ 0.537763] usbcore: registered new interface driver hub
[ 0.537896] usbcore: registered new device driver usb
[ 0.538060] PCI: Using ACPI for IRQ routing
[ 0.538159] PCI: pci_cache_line_size set to 64 bytes
[ 0.538391] reserve RAM buffer: 000000000009d400 - 000000000009ffff
[ 0.538444] reserve RAM buffer: 00000000b9ce3000 - 00000000bbffffff
[ 0.538586] reserve RAM buffer: 00000000b9f92000 - 00000000bbffffff
[ 0.538730] reserve RAM buffer: 00000000ba3a9000 - 00000000bbffffff
[ 0.538877] reserve RAM buffer: 0000000100600000 - 0000000103ffffff
[ 0.539114] NetLabel: Initializing
[ 0.539300] NetLabel: domain hash size = 128
[ 0.539398] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.539507] NetLabel: unlabeled traffic allowed by default
[ 0.539663] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[ 0.540128] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[ 0.542245] Switching to clocksource hpet
[ 0.542807] Switched to NOHz mode on CPU #0
[ 0.542933] Switched to NOHz mode on CPU #2
[ 0.542939] Switched to NOHz mode on CPU #3
[ 0.542955] Switched to NOHz mode on CPU #1
[ 0.550650] pnp: PnP ACPI init
[ 0.550768] ACPI: bus type pnp registered
[ 0.551178] pnp 00:00: [bus 00-3e]
[ 0.551276] pnp 00:00: [io 0x0000-0x0cf7 window]
[ 0.551375] pnp 00:00: [io 0x0cf8-0x0cff]
[ 0.551482] pnp 00:00: [io 0x0d00-0xffff window]
[ 0.551582] pnp 00:00: [mem 0x000a0000-0x000bffff window]
[ 0.551683] pnp 00:00: [mem 0x000c0000-0x000c3fff window]
[ 0.551783] pnp 00:00: [mem 0x000c4000-0x000c7fff window]
[ 0.551883] pnp 00:00: [mem 0x000c8000-0x000cbfff window]
[ 0.551983] pnp 00:00: [mem 0x000cc000-0x000cffff window]
[ 0.552083] pnp 00:00: [mem 0x000d0000-0x000d3fff window]
[ 0.552183] pnp 00:00: [mem 0x000d4000-0x000d7fff window]
[ 0.552283] pnp 00:00: [mem 0x000d8000-0x000dbfff window]
[ 0.552390] pnp 00:00: [mem 0x000dc000-0x000dffff window]
[ 0.552490] pnp 00:00: [mem 0x000e0000-0x000e3fff window]
[ 0.552589] pnp 00:00: [mem 0x000e4000-0x000e7fff window]
[ 0.552689] pnp 00:00: [mem 0x000e8000-0x000ebfff window]
[ 0.552789] pnp 00:00: [mem 0x000ec000-0x000effff window]
[ 0.552889] pnp 00:00: [mem 0x000f0000-0x000fffff window]
[ 0.552988] pnp 00:00: [mem 0xbf200000-0xfeafffff window]
[ 0.553088] pnp 00:00: [mem 0xfed40000-0xfed44fff window]
[ 0.553267] pnp 00:00: Plug and Play ACPI device, IDs PNP0a08 PNP0a03 (active)
[ 0.553440] pnp 00:01: [io 0x0000-0x001f]
[ 0.553537] pnp 00:01: [io 0x0081-0x0091]
[ 0.553635] pnp 00:01: [io 0x0093-0x009f]
[ 0.553732] pnp 00:01: [io 0x00c0-0x00df]
[ 0.553830] pnp 00:01: [dma 4]
[ 0.553957] pnp 00:01: Plug and Play ACPI device, IDs PNP0200 (active)
[ 0.554066] pnp 00:02: [mem 0xff000000-0xffffffff]
[ 0.554188] pnp 00:02: Plug and Play ACPI device, IDs INT0800 (active)
[ 0.554375] pnp 00:03: [mem 0xfed00000-0xfed003ff]
[ 0.554509] pnp 00:03: Plug and Play ACPI device, IDs PNP0103 (active)
[ 0.554622] pnp 00:04: [io 0x002e-0x002f]
[ 0.554719] pnp 00:04: [io 0x004e-0x004f]
[ 0.554815] pnp 00:04: [io 0x0061]
[ 0.554914] pnp 00:04: [io 0x0063]
[ 0.555010] pnp 00:04: [io 0x0065]
[ 0.555106] pnp 00:04: [io 0x0067]
[ 0.555202] pnp 00:04: [io 0x0070]
[ 0.555298] pnp 00:04: [io 0x0080]
[ 0.555403] pnp 00:04: [io 0x0092]
[ 0.555499] pnp 00:04: [io 0x00b2-0x00b3]
[ 0.555596] pnp 00:04: [io 0x0680-0x069f]
[ 0.555692] pnp 00:04: [io 0x1000-0x100f]
[ 0.555790] pnp 00:04: [io 0xffff]
[ 0.555886] pnp 00:04: [io 0xffff]
[ 0.555982] pnp 00:04: [io 0x0400-0x0453]
[ 0.556080] pnp 00:04: [io 0x0458-0x047f]
[ 0.556177] pnp 00:04: [io 0x0500-0x057f]
[ 0.556275] pnp 00:04: [io 0x164e-0x164f]
[ 0.556429] system 00:04: [io 0x0680-0x069f] has been reserved
[ 0.556530] system 00:04: [io 0x1000-0x100f] has been reserved
[ 0.556632] system 00:04: [io 0xffff] has been reserved
[ 0.556732] system 00:04: [io 0xffff] has been reserved
[ 0.556832] system 00:04: [io 0x0400-0x0453] has been reserved
[ 0.556932] system 00:04: [io 0x0458-0x047f] has been reserved
[ 0.557034] system 00:04: [io 0x0500-0x057f] has been reserved
[ 0.557135] system 00:04: [io 0x164e-0x164f] has been reserved
[ 0.558626] system 00:04: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.558734] pnp 00:05: [io 0x0070-0x0077]
[ 0.558839] pnp 00:05: [irq 8]
[ 0.558961] pnp 00:05: Plug and Play ACPI device, IDs PNP0b00 (active)
[ 0.559092] pnp 00:06: [io 0x0454-0x0457]
[ 0.559226] system 00:06: [io 0x0454-0x0457] has been reserved
[ 0.559328] system 00:06: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
[ 0.559495] pnp 00:07: [io 0x00f0-0x00ff]
[ 0.559597] pnp 00:07: [irq 13]
[ 0.559720] pnp 00:07: Plug and Play ACPI device, IDs PNP0c04 (active)
[ 0.559837] pnp 00:08: [io 0x0010-0x001f]
[ 0.559934] pnp 00:08: [io 0x0022-0x003f]
[ 0.560032] pnp 00:08: [io 0x0044-0x005f]
[ 0.560129] pnp 00:08: [io 0x0068-0x006f]
[ 0.560226] pnp 00:08: [io 0x0072-0x007f]
[ 0.560323] pnp 00:08: [io 0x0080]
[ 0.560427] pnp 00:08: [io 0x0084-0x0086]
[ 0.560525] pnp 00:08: [io 0x0088]
[ 0.560621] pnp 00:08: [io 0x008c-0x008e]
[ 0.560719] pnp 00:08: [io 0x0090-0x009f]
[ 0.560816] pnp 00:08: [io 0x00a2-0x00bf]
[ 0.560913] pnp 00:08: [io 0x00e0-0x00ef]
[ 0.561010] pnp 00:08: [io 0x04d0-0x04d1]
[ 0.561106] pnp 00:08: [mem 0xfe800000-0xfe802fff]
[ 0.561249] system 00:08: [io 0x04d0-0x04d1] has been reserved
[ 0.561353] system 00:08: [mem 0xfe800000-0xfe802fff] has been reserved
[ 0.561463] system 00:08: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.561582] pnp 00:09: [irq 12]
[ 0.561704] pnp 00:09: Plug and Play ACPI device, IDs DLL04b0 SYN0600 SYN0002 PNP0f13 (active)
[ 0.561873] pnp 00:0a: [io 0x0060]
[ 0.561970] pnp 00:0a: [io 0x0064]
[ 0.562067] pnp 00:0a: [io 0x0062]
[ 0.562163] pnp 00:0a: [io 0x0066]
[ 0.562263] pnp 00:0a: [irq 1]
[ 0.562394] pnp 00:0a: Plug and Play ACPI device, IDs PNP0303 (active)
[ 0.562722] pnp 00:0b: [mem 0xfed1c000-0xfed1ffff]
[ 0.562821] pnp 00:0b: [mem 0xfed10000-0xfed17fff]
[ 0.562922] pnp 00:0b: [mem 0xfed18000-0xfed18fff]
[ 0.563021] pnp 00:0b: [mem 0xfed19000-0xfed19fff]
[ 0.563120] pnp 00:0b: [mem 0xf8000000-0xfbffffff]
[ 0.563218] pnp 00:0b: [mem 0xfed20000-0xfed3ffff]
[ 0.563317] pnp 00:0b: [mem 0xfed90000-0xfed93fff]
[ 0.563423] pnp 00:0b: [mem 0xfed45000-0xfed8ffff]
[ 0.563522] pnp 00:0b: [mem 0xff000000-0xffffffff]
[ 0.563619] pnp 00:0b: [mem 0xfee00000-0xfeefffff]
[ 0.563718] pnp 00:0b: [mem 0xbf200000-0xbf200fff]
[ 0.563874] system 00:0b: [mem 0xfed1c000-0xfed1ffff] has been reserved
[ 0.563977] system 00:0b: [mem 0xfed10000-0xfed17fff] has been reserved
[ 0.564080] system 00:0b: [mem 0xfed18000-0xfed18fff] has been reserved
[ 0.564184] system 00:0b: [mem 0xfed19000-0xfed19fff] has been reserved
[ 0.564287] system 00:0b: [mem 0xf8000000-0xfbffffff] has been reserved
[ 0.564400] system 00:0b: [mem 0xfed20000-0xfed3ffff] has been reserved
[ 0.564503] system 00:0b: [mem 0xfed90000-0xfed93fff] has been reserved
[ 0.564606] system 00:0b: [mem 0xfed45000-0xfed8ffff] has been reserved
[ 0.564708] system 00:0b: [mem 0xff000000-0xffffffff] has been reserved
[ 0.564811] system 00:0b: [mem 0xfee00000-0xfeefffff] could not be reserved
[ 0.564914] system 00:0b: [mem 0xbf200000-0xbf200fff] has been reserved
[ 0.565018] system 00:0b: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.565278] pnp 00:0c: [mem 0x20000000-0x201fffff]
[ 0.565385] pnp 00:0c: [mem 0x40000000-0x401fffff]
[ 0.565544] system 00:0c: [mem 0x20000000-0x201fffff] has been reserved
[ 0.565647] system 00:0c: [mem 0x40000000-0x401fffff] has been reserved
[ 0.565749] system 00:0c: Plug and Play ACPI device, IDs PNP0c01 (active)
[ 0.565902] pnp: PnP ACPI: found 13 devices
[ 0.565999] ACPI: ACPI bus type pnp unregistered
[ 0.572612] pci 0000:00:1c.0: PCI bridge to [bus 03-04]
[ 0.572710] pci 0000:00:1c.0: bridge window [io disabled]
[ 0.572814] pci 0000:00:1c.0: bridge window [mem disabled]
[ 0.572916] pci 0000:00:1c.0: bridge window [mem pref disabled]
[ 0.573022] pci 0000:00:1c.1: PCI bridge to [bus 05-06]
[ 0.573123] pci 0000:00:1c.1: bridge window [io 0xe000-0xefff]
[ 0.573227] pci 0000:00:1c.1: bridge window [mem disabled]
[ 0.573330] pci 0000:00:1c.1: bridge window [mem 0xf1100000-0xf11fffff 64bit pref]
[ 0.573495] pci 0000:00:1c.3: PCI bridge to [bus 09-0a]
[ 0.573595] pci 0000:00:1c.3: bridge window [io disabled]
[ 0.573699] pci 0000:00:1c.3: bridge window [mem 0xf7e00000-0xf7efffff]
[ 0.573805] pci 0000:00:1c.3: bridge window [mem pref disabled]
[ 0.573912] pci 0000:00:1c.4: PCI bridge to [bus 0b-0c]
[ 0.574010] pci 0000:00:1c.4: bridge window [io disabled]
[ 0.574114] pci 0000:00:1c.4: bridge window [mem 0xf7d00000-0xf7dfffff]
[ 0.574220] pci 0000:00:1c.4: bridge window [mem pref disabled]
[ 0.574326] pci 0000:00:1c.7: PCI bridge to [bus 11-1f]
[ 0.574434] pci 0000:00:1c.7: bridge window [io 0xc000-0xdfff]
[ 0.574539] pci 0000:00:1c.7: bridge window [mem 0xf6c00000-0xf7cfffff]
[ 0.574644] pci 0000:00:1c.7: bridge window [mem 0xf0000000-0xf10fffff 64bit pref]
[ 0.574816] pci 0000:00:1c.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 0.574922] pci 0000:00:1c.0: setting latency timer to 64
[ 0.575032] pci 0000:00:1c.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 0.575137] pci 0000:00:1c.1: setting latency timer to 64
[ 0.575247] pci 0000:00:1c.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19
[ 0.575359] pci 0000:00:1c.3: setting latency timer to 64
[ 0.575463] pci 0000:00:1c.4: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 0.575568] pci 0000:00:1c.4: setting latency timer to 64
[ 0.575675] pci 0000:00:1c.7: PCI INT D -> GSI 19 (level, low) -> IRQ 19
[ 0.575779] pci 0000:00:1c.7: setting latency timer to 64
[ 0.575881] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7]
[ 0.575981] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff]
[ 0.576081] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
[ 0.576183] pci_bus 0000:00: resource 7 [mem 0x000d0000-0x000d3fff]
[ 0.576284] pci_bus 0000:00: resource 8 [mem 0x000d4000-0x000d7fff]
[ 0.576393] pci_bus 0000:00: resource 9 [mem 0x000d8000-0x000dbfff]
[ 0.576495] pci_bus 0000:00: resource 10 [mem 0x000dc000-0x000dffff]
[ 0.576597] pci_bus 0000:00: resource 11 [mem 0x000e0000-0x000e3fff]
[ 0.576698] pci_bus 0000:00: resource 12 [mem 0x000e4000-0x000e7fff]
[ 0.576800] pci_bus 0000:00: resource 13 [mem 0xbf200000-0xfeafffff]
[ 0.576901] pci_bus 0000:00: resource 14 [mem 0xfed40000-0xfed44fff]
[ 0.577003] pci_bus 0000:05: resource 0 [io 0xe000-0xefff]
[ 0.577103] pci_bus 0000:05: resource 2 [mem 0xf1100000-0xf11fffff 64bit pref]
[ 0.577256] pci_bus 0000:09: resource 1 [mem 0xf7e00000-0xf7efffff]
[ 0.577363] pci_bus 0000:0b: resource 1 [mem 0xf7d00000-0xf7dfffff]
[ 0.577465] pci_bus 0000:11: resource 0 [io 0xc000-0xdfff]
[ 0.577565] pci_bus 0000:11: resource 1 [mem 0xf6c00000-0xf7cfffff]
[ 0.577667] pci_bus 0000:11: resource 2 [mem 0xf0000000-0xf10fffff 64bit pref]
[ 0.577839] NET: Registered protocol family 2
[ 0.578078] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.579241] TCP established hash table entries: 524288 (order: 11, 8388608 bytes)
[ 0.581360] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[ 0.581710] TCP: Hash tables configured (established 524288 bind 65536)
[ 0.581812] TCP reno registered
[ 0.581918] UDP hash table entries: 2048 (order: 4, 65536 bytes)
[ 0.582041] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes)
[ 0.582237] NET: Registered protocol family 1
[ 0.582354] pci 0000:00:02.0: Boot video device
[ 0.818125] PCI: CLS 64 bytes, default 64
[ 0.818292] Trying to unpack rootfs image as initramfs...
[ 1.140879] Freeing initrd memory: 14604k freed
[ 1.143012] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[ 1.143119] Placing 64MB software IO TLB between ffff880017600000 - ffff88001b600000
[ 1.143273] software IO TLB at phys 0x17600000 - 0x1b600000
[ 1.144072] Intel AES-NI instructions are not detected.
[ 1.144281] audit: initializing netlink socket (disabled)
[ 1.144390] type=2000 audit(1308736860.954:1): initialized
[ 1.158281] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 1.160565] VFS: Disk quotas dquot_6.5.2
[ 1.160707] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 1.161285] msgmni has been set to 5712
[ 1.161432] SELinux: Registering netfilter hooks
[ 1.161802] NET: Registered protocol family 38
[ 1.161949] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[ 1.162130] io scheduler noop registered
[ 1.162229] io scheduler deadline registered
[ 1.162365] io scheduler cfq registered (default)
[ 1.162576] pcieport 0000:00:1c.0: setting latency timer to 64
[ 1.162726] pcieport 0000:00:1c.0: irq 40 for MSI/MSI-X
[ 1.162903] pcieport 0000:00:1c.1: setting latency timer to 64
[ 1.163045] pcieport 0000:00:1c.1: irq 41 for MSI/MSI-X
[ 1.163220] pcieport 0000:00:1c.3: setting latency timer to 64
[ 1.163362] pcieport 0000:00:1c.3: irq 42 for MSI/MSI-X
[ 1.163543] pcieport 0000:00:1c.4: setting latency timer to 64
[ 1.163686] pcieport 0000:00:1c.4: irq 43 for MSI/MSI-X
[ 1.163866] pcieport 0000:00:1c.7: setting latency timer to 64
[ 1.164007] pcieport 0000:00:1c.7: irq 44 for MSI/MSI-X
[ 1.164218] pcieport 0000:00:1c.0: Signaling PME through PCIe PME interrupt
[ 1.164326] pcie_pme 0000:00:1c.0:pcie01: service driver pcie_pme loaded
[ 1.164445] pcieport 0000:00:1c.1: Signaling PME through PCIe PME interrupt
[ 1.164562] pci 0000:05:00.0: Signaling PME through PCIe PME interrupt
[ 1.164668] pcie_pme 0000:00:1c.1:pcie01: service driver pcie_pme loaded
[ 1.164787] pcieport 0000:00:1c.3: Signaling PME through PCIe PME interrupt
[ 1.164890] pci 0000:09:00.0: Signaling PME through PCIe PME interrupt
[ 1.164994] pcie_pme 0000:00:1c.3:pcie01: service driver pcie_pme loaded
[ 1.165113] pcieport 0000:00:1c.4: Signaling PME through PCIe PME interrupt
[ 1.165216] pci 0000:0b:00.0: Signaling PME through PCIe PME interrupt
[ 1.165321] pcie_pme 0000:00:1c.4:pcie01: service driver pcie_pme loaded
[ 1.165441] pcieport 0000:00:1c.7: Signaling PME through PCIe PME interrupt
[ 1.165561] pcie_pme 0000:00:1c.7:pcie01: service driver pcie_pme loaded
[ 1.165677] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 1.165821] pciehp 0000:00:1c.7:pcie04: HPC vendor_id 8086 device_id 1c1e ss_vid 1028 ss_did 4b0
[ 1.165996] pciehp 0000:00:1c.7:pcie04: service driver pciehp loaded
[ 1.166105] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[ 1.167609] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 1.168109] intel_idle: MWAIT substates: 0x21120
[ 1.168208] intel_idle: v0.4 model 0x2A
[ 1.168304] intel_idle: lapic_timer_reliable_states 0xffffffff
[ 1.168494] ACPI: Deprecated procfs I/F for AC is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared
[ 1.168700] ACPI: AC Adapter [AC] (on-line)
[ 1.168914] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input0
[ 1.186458] ACPI: Lid Switch [LID0]
[ 1.186650] input: Power Button as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1
[ 1.186807] ACPI: Power Button [PWRB]
[ 1.186948] input: Sleep Button as /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input2
[ 1.187104] ACPI: Sleep Button [SBTN]
[ 1.187245] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3
[ 1.187399] ACPI: Power Button [PWRF]
[ 1.187716] ACPI: acpi_idle yielding to intel_idle
[ 1.196667] thermal LNXTHERM:00: registered as thermal_zone0
[ 1.196768] ACPI: Thermal Zone [THM] (54 C)
[ 1.196878] ERST: Table is not found!
[ 1.197087] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 1.210991] ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared
[ 1.211154] ACPI: Battery Slot [BAT0] (battery present)
[ 1.215062] Non-volatile memory driver v1.3
[ 1.215161] Linux agpgart interface v0.103
[ 1.215338] agpgart-intel 0000:00:00.0: Intel Sandybridge Chipset
[ 1.215544] agpgart-intel 0000:00:00.0: detected gtt size: 2097152K total, 262144K mappable
[ 1.216782] agpgart-intel 0000:00:00.0: detected 65536K stolen memory
[ 1.216997] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xe0000000
[ 1.218374] brd: module loaded
[ 1.219045] loop: module loaded
[ 1.219224] ahci 0000:00:1f.2: version 3.0
[ 1.219332] ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[ 1.219488] ahci 0000:00:1f.2: irq 45 for MSI/MSI-X
[ 1.219613] ahci: SSS flag set, parallel bus scan disabled
[ 1.230428] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x31 impl SATA mode
[ 1.230624] ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo pio slum part ems sxs apst
[ 1.230784] ahci 0000:00:1f.2: setting latency timer to 64
[ 1.235111] scsi0 : ahci
[ 1.235298] scsi1 : ahci
[ 1.235485] scsi2 : ahci
[ 1.235651] scsi3 : ahci
[ 1.235817] scsi4 : ahci
[ 1.235987] scsi5 : ahci
[ 1.236491] ata1: SATA max UDMA/133 abar m2048@0xf7f06000 port 0xf7f06100 irq 45
[ 1.236645] ata2: DUMMY
[ 1.236739] ata3: DUMMY
[ 1.236833] ata4: DUMMY
[ 1.236928] ata5: SATA max UDMA/133 abar m2048@0xf7f06000 port 0xf7f06300 irq 45
[ 1.237082] ata6: SATA max UDMA/133 abar m2048@0xf7f06000 port 0xf7f06380 irq 45
[ 1.237341] Fixed MDIO Bus: probed
[ 1.237529] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.237646] ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 1.237763] ehci_hcd 0000:00:1a.0: setting latency timer to 64
[ 1.237866] ehci_hcd 0000:00:1a.0: EHCI Host Controller
[ 1.238021] ehci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
[ 1.239458] ehci_hcd 0000:00:1a.0: debug port 2
[ 1.243451] ehci_hcd 0000:00:1a.0: cache line size of 64 is not supported
[ 1.243571] ehci_hcd 0000:00:1a.0: irq 16, io mem 0xf7f08000
[ 1.253365] ehci_hcd 0000:00:1a.0: USB 2.0 started, EHCI 1.00
[ 1.253529] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.253632] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.253784] usb usb1: Product: EHCI Host Controller
[ 1.253883] usb usb1: Manufacturer: Linux 2.6.38.8-32.fc15.x86_64 ehci_hcd
[ 1.253986] usb usb1: SerialNumber: 0000:00:1a.0
[ 1.254198] hub 1-0:1.0: USB hub found
[ 1.254298] hub 1-0:1.0: 2 ports detected
[ 1.254487] ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[ 1.254602] ehci_hcd 0000:00:1d.0: setting latency timer to 64
[ 1.254705] ehci_hcd 0000:00:1d.0: EHCI Host Controller
[ 1.254846] ehci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
[ 1.255439] ehci_hcd 0000:00:1d.0: debug port 2
[ 1.259450] ehci_hcd 0000:00:1d.0: cache line size of 64 is not supported
[ 1.259565] ehci_hcd 0000:00:1d.0: irq 23, io mem 0xf7f07000
[ 1.269340] ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[ 1.269505] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.269608] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.269761] usb usb2: Product: EHCI Host Controller
[ 1.269860] usb usb2: Manufacturer: Linux 2.6.38.8-32.fc15.x86_64 ehci_hcd
[ 1.269963] usb usb2: SerialNumber: 0000:00:1d.0
[ 1.270160] hub 2-0:1.0: USB hub found
[ 1.270259] hub 2-0:1.0: 2 ports detected
[ 1.270436] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.270549] uhci_hcd: USB Universal Host Controller Interface driver
[ 1.270713] i8042: PNP: PS/2 Controller [PNP0303:KBC,PNP0f13:PS2] at 0x60,0x64 irq 1,12
[ 1.273218] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 1.273327] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 1.273525] mousedev: PS/2 mouse device common for all mice
[ 1.273836] rtc_cmos 00:05: RTC can wake from S4
[ 1.274008] rtc_cmos 00:05: rtc core: registered rtc_cmos as rtc0
[ 1.274136] rtc0: alarms up to one month, y3k, 242 bytes nvram, hpet irqs
[ 1.274347] device-mapper: uevent: version 1.0.3
[ 1.274521] device-mapper: ioctl: 4.19.1-ioctl (2011-01-07) initialised: dm-devel@redhat.com
[ 1.274864] cpuidle: using governor ladder
[ 1.275176] cpuidle: using governor menu
[ 1.275430] usbcore: registered new interface driver usbhid
[ 1.275531] usbhid: USB HID core driver
[ 1.275658] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 1.275885] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 1.275995] TCP cubic registered
[ 1.276091] Initializing XFRM netlink socket
[ 1.276201] NET: Registered protocol family 17
[ 1.276324] Registering the dns_resolver key type
[ 1.276525] PM: Hibernation image not present or could not be loaded.
[ 1.276635] registered taskstats version 1
[ 1.276856] IMA: No TPM chip found, activating TPM-bypass!
[ 1.277270] Magic number: 15:672:22
[ 1.277462] rtc_cmos 00:05: setting system clock to 2011-06-22 10:01:02 UTC (1308736862)
[ 1.277684] Initalizing network drop monitor service
[ 1.289756] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
[ 1.541007] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 1.547670] ata1.00: ACPI cmd 00/00:00:00:00:00:a0 (NOP) rejected by device (Stat=0x51 Err=0x04)
[ 1.548050] ata1.00: ATA-8: SAMSUNG HM321HI, 2AJ10003, max UDMA/133
[ 1.548167] ata1.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[ 1.554984] ata1.00: ACPI cmd 00/00:00:00:00:00:a0 (NOP) rejected by device (Stat=0x51 Err=0x04)
[ 1.555315] ata1.00: configured for UDMA/133
[ 1.555970] usb 1-1: new high speed USB device using ehci_hcd and address 2
[ 1.557123] scsi 0:0:0:0: Direct-Access ATA SAMSUNG HM321HI 2AJ1 PQ: 0 ANSI: 5
[ 1.557487] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 1.557606] sd 0:0:0:0: [sda] 625142448 512-byte logical blocks: (320 GB/298 GiB)
[ 1.557901] sd 0:0:0:0: [sda] Write Protect is off
[ 1.558001] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1.558135] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.559730] alps.c: Enabled hardware quirk, falling back to psmouse-core
[ 1.573115] input: ImPS/2 ALPS GlidePoint as /devices/platform/i8042/serio1/input/input5
[ 1.627416] sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
[ 1.628061] sd 0:0:0:0: [sda] Attached SCSI disk
[ 1.670220] usb 1-1: New USB device found, idVendor=8087, idProduct=0024
[ 1.670346] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.670792] hub 1-1:1.0: USB hub found
[ 1.670959] hub 1-1:1.0: 6 ports detected
[ 1.773619] usb 2-1: new high speed USB device using ehci_hcd and address 2
[ 1.861558] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 1.887894] usb 2-1: New USB device found, idVendor=8087, idProduct=0024
[ 1.888021] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.888490] hub 2-1:1.0: USB hub found
[ 1.888746] hub 2-1:1.0: 8 ports detected
[ 1.952600] usb 1-1.4: new full speed USB device using ehci_hcd and address 3
[ 1.974478] ata5.00: ATA-9: OCZ-VERTEX3, 2.02, max UDMA/133
[ 1.974614] ata5.00: 234441648 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[ 2.042747] usb 1-1.4: New USB device found, idVendor=8086, idProduct=0189
[ 2.042882] usb 1-1.4: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.117354] usb 1-1.5: new high speed USB device using ehci_hcd and address 4
[ 2.125543] ata5.00: configured for UDMA/133
[ 2.125775] scsi 4:0:0:0: Direct-Access ATA OCZ-VERTEX3 2.02 PQ: 0 ANSI: 5
[ 2.126102] sd 4:0:0:0: [sdb] 234441648 512-byte logical blocks: (120 GB/111 GiB)
[ 2.126153] sd 4:0:0:0: Attached scsi generic sg1 type 0
[ 2.126490] sd 4:0:0:0: [sdb] Write Protect is off
[ 2.126589] sd 4:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 2.126719] sd 4:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 2.143060] Refined TSC clocksource calibration: 2095.240 MHz.
[ 2.143205] Switching to clocksource tsc
[ 2.148484] sdb: sdb1 sdb2 sdb3
[ 2.148962] sd 4:0:0:0: [sdb] Attached SCSI disk
[ 2.319963] usb 1-1.5: New USB device found, idVendor=1bcf, idProduct=2880
[ 2.320103] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.320256] usb 1-1.5: Product: Laptop_Integrated_Webcam_HD
[ 2.320355] usb 1-1.5: Manufacturer: CN0T3NPC72487149A78ZA00
[ 2.430700] ata6: SATA link down (SStatus 0 SControl 300)
[ 2.432876] Freeing unused kernel memory: 948k freed
[ 2.433096] Write protecting the kernel read-only data: 10240k
[ 2.439586] Freeing unused kernel memory: 1524k freed
[ 2.446886] Freeing unused kernel memory: 1724k freed
[ 2.474303] dracut: dracut-009-11.fc15
[ 2.482062] dracut: rd.luks=0: removing cryptoluks activation
[ 2.484343] dracut: rd.lvm=0: removing LVM activation
[ 2.489332] udev[119]: starting version 167
[ 2.529435] [drm] Initialized drm 1.1.0 20060810
[ 2.546809] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 2.546917] i915 0000:00:02.0: setting latency timer to 64
[ 2.565474] usb 2-1.6: new high speed USB device using ehci_hcd and address 3
[ 2.592842] i915 0000:00:02.0: irq 46 for MSI/MSI-X
[ 2.592949] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 2.593053] [drm] Driver supports precise vblank timestamp query.
[ 2.693247] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 2.737971] fbcon: inteldrmfb (fb0) is primary device
[ 2.797986] Console: switching to colour frame buffer device 170x48
[ 2.801819] fb0: inteldrmfb frame buffer device
[ 2.801848] drm: registered panic notifier
[ 2.803375] acpi device:33: registered as cooling_device4
[ 2.803782] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input6
[ 2.803931] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 2.804122] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[ 2.817975] dracut: Starting plymouth daemon
[ 2.896753] usb 2-1.6: New USB device found, idVendor=0bda, idProduct=0138
[ 2.896848] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.896913] usb 2-1.6: Product: USB2.0-CRW
[ 2.896948] usb 2-1.6: Manufacturer: Generic
[ 2.896976] usb 2-1.6: SerialNumber: 20090516388200000
[ 2.905691] usbcore: registered new interface driver uas
[ 2.909469] Initializing USB Mass Storage driver...
[ 2.909602] scsi6 : usb-storage 2-1.6:1.0
[ 2.909752] usbcore: registered new interface driver usb-storage
[ 2.909810] USB Mass Storage support registered.
[ 2.930897] dracut: rd.dm=0: removing DM RAID activation
[ 2.934053] dracut: rd.md=0: removing MD RAID activation
[ 3.583000] EXT4-fs (sdb2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.601054] dracut: Checking filesystems
[ 3.601078] dracut: fsck -T -t noopts=_netdev -A -a
[ 3.605961] dracut: _Fedora-15-x86_6: clean, 127634/835584 files, 2829300/3328000 blocks
[ 3.606083] dracut: Remounting /dev/disk/by-uuid/da48811c-7aeb-4514-8c75-a56a82bba9fa with -o ro,
[ 3.608859] EXT4-fs (sdb2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.611325] dracut: Mounted root filesystem /dev/sdb2
[ 3.682043] dracut: Switching root
[ 3.727020] type=1404 audit(1308736864.952:2): enforcing=1 old_enforcing=0 auid=4294967295 ses=4294967295
[ 3.762988] SELinux: 2048 avtab hash slots, 220461 rules.
[ 3.841753] SELinux: 2048 avtab hash slots, 220461 rules.
[ 3.910380] scsi 6:0:0:0: Direct-Access Generic- Multi-Card 1.00 PQ: 0 ANSI: 0 CCS
[ 3.910876] sd 6:0:0:0: Attached scsi generic sg2 type 0
[ 3.916490] sd 6:0:0:0: [sdc] Attached SCSI removable disk
[ 4.193059] SELinux: 9 users, 13 roles, 3605 types, 191 bools, 1 sens, 1024 cats
[ 4.193064] SELinux: 81 classes, 220461 rules
[ 4.201241] SELinux: Completing initialization.
[ 4.201243] SELinux: Setting up existing superblocks.
[ 4.201251] SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
[ 4.201257] SELinux: initialized (dev rootfs, type rootfs), uses genfs_contexts
[ 4.201269] SELinux: initialized (dev bdev, type bdev), uses genfs_contexts
[ 4.201275] SELinux: initialized (dev proc, type proc), uses genfs_contexts
[ 4.201283] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[ 4.201322] SELinux: initialized (dev devtmpfs, type devtmpfs), uses transition SIDs
[ 4.201808] SELinux: initialized (dev sockfs, type sockfs), uses task SIDs
[ 4.201813] SELinux: initialized (dev debugfs, type debugfs), uses genfs_contexts
[ 4.202543] SELinux: initialized (dev pipefs, type pipefs), uses task SIDs
[ 4.202551] SELinux: initialized (dev anon_inodefs, type anon_inodefs), uses genfs_contexts
[ 4.202555] SELinux: initialized (dev devpts, type devpts), uses transition SIDs
[ 4.202571] SELinux: initialized (dev hugetlbfs, type hugetlbfs), uses transition SIDs
[ 4.202589] SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs
[ 4.202614] SELinux: initialized (dev selinuxfs, type selinuxfs), uses genfs_contexts
[ 4.202627] SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
[ 4.202633] SELinux: initialized (dev securityfs, type securityfs), uses genfs_contexts
[ 4.202637] SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
[ 4.203121] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[ 4.203134] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[ 4.203728] SELinux: initialized (dev sdb2, type ext4), uses xattr
[ 4.205819] type=1403 audit(1308736865.431:3): policy loaded auid=4294967295 ses=4294967295
[ 4.321191] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[ 4.321807] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.443148] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.451703] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.452215] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.456755] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.461744] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.466714] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.472014] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.478719] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.484705] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[ 4.490975] systemd[1]: systemd 26 running in system mode. (+PAM +LIBWRAP +AUDIT +SELINUX +SYSVINIT +LIBCRYPTSETUP; fedora)
[ 4.542997] NET: Registered protocol family 10
[ 4.543982] systemd[1]: Set hostname to <pb-n5110>.
[ 4.747152] SELinux: initialized (dev autofs, type autofs), uses genfs_contexts
[ 4.750040] SELinux: initialized (dev autofs, type autofs), uses genfs_contexts
[ 4.750724] SELinux: initialized (dev autofs, type autofs), uses genfs_contexts
[ 4.750991] SELinux: initialized (dev autofs, type autofs), uses genfs_contexts
[ 4.751767] SELinux: initialized (dev autofs, type autofs), uses genfs_contexts
[ 4.801196] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[ 4.849644] EXT4-fs (sdb2): re-mounted. Opts: (null)
[ 5.122175] udev[410]: starting version 167
[ 5.245298] wmi: Mapper loaded
[ 5.298630] xhci_hcd 0000:0b:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 5.298676] xhci_hcd 0000:0b:00.0: setting latency timer to 64
[ 5.298684] xhci_hcd 0000:0b:00.0: xHCI Host Controller
[ 5.307882] iTCO_vendor_support: vendor-support=0
[ 5.314320] xhci_hcd 0000:0b:00.0: new USB bus registered, assigned bus number 3
[ 5.321745] xhci_hcd 0000:0b:00.0: irq 16, io mem 0xf7d00000
[ 5.322316] xhci_hcd 0000:0b:00.0: irq 47 for MSI/MSI-X
[ 5.322325] xhci_hcd 0000:0b:00.0: irq 48 for MSI/MSI-X
[ 5.322332] xhci_hcd 0000:0b:00.0: irq 49 for MSI/MSI-X
[ 5.322339] xhci_hcd 0000:0b:00.0: irq 50 for MSI/MSI-X
[ 5.322346] xhci_hcd 0000:0b:00.0: irq 51 for MSI/MSI-X
[ 5.325227] usb usb3: No SuperSpeed endpoint companion for config 1 interface 0 altsetting 0 ep 129: using minimum values
[ 5.325243] usb usb3: New USB device found, idVendor=1d6b, idProduct=0003
[ 5.325248] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 5.325251] usb usb3: Product: xHCI Host Controller
[ 5.325254] usb usb3: Manufacturer: Linux 2.6.38.8-32.fc15.x86_64 xhci_hcd
[ 5.325257] usb usb3: SerialNumber: 0000:0b:00.0
[ 5.325449] xHCI xhci_add_endpoint called for root hub
[ 5.325452] xHCI xhci_check_bandwidth called for root hub
[ 5.325511] hub 3-0:1.0: USB hub found
[ 5.325518] hub 3-0:1.0: 4 ports detected
[ 5.337235] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.06
[ 5.337374] iTCO_wdt: Found a Cougar Point TCO device (Version=2, TCOBASE=0x0460)
[ 5.337503] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[ 5.347268] i801_smbus 0000:00:1f.3: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 5.347277] ACPI: resource 0000:00:1f.3 [io 0xf040-0xf05f] conflicts with ACPI region SMBI [io 0xf040-0xf04f]
[ 5.347280] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 5.347761] Linux video capture interface: v2.00
[ 5.352609] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 5.352649] r8169 0000:05:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 5.352716] r8169 0000:05:00.0: setting latency timer to 64
[ 5.352723] r8169 0000:05:00.0: (unregistered net_device): unknown MAC, using family default
[ 5.352797] r8169 0000:05:00.0: irq 52 for MSI/MSI-X
[ 5.353024] r8169 0000:05:00.0: eth0: RTL8101e at 0xffffc9000509e000, 78:2b:cb:f0:e8:52, XID 00a00000 IRQ 52
[ 5.390966] mtp-probe[545]: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6"
[ 5.394100] mtp-probe[545]: bus: 2, device: 3 was not an MTP device
[ 5.535828] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[ 5.544998] microcode: CPU0 sig=0x206a7, pf=0x10, revision=0x14
[ 5.545011] microcode: CPU1 sig=0x206a7, pf=0x10, revision=0x14
[ 5.545026] microcode: CPU2 sig=0x206a7, pf=0x10, revision=0x14
[ 5.545037] microcode: CPU3 sig=0x206a7, pf=0x10, revision=0x14
[ 5.545782] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[ 5.577921] uvcvideo: Found UVC 1.00 device Laptop_Integrated_Webcam_HD (1bcf:2880)
[ 5.586532] input: Dell WMI hotkeys as /devices/virtual/input/input7
[ 5.595404] input: Laptop_Integrated_Webcam_HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input8
[ 5.595561] usbcore: registered new interface driver uvcvideo
[ 5.595564] USB Video Class driver (v1.0.0)
[ 5.608624] Bluetooth: Core ver 2.15
[ 5.608651] NET: Registered protocol family 31
[ 5.608654] Bluetooth: HCI device and connection manager initialized
[ 5.608657] Bluetooth: HCI socket layer initialized
[ 5.610210] cfg80211: Calling CRDA to update world regulatory domain
[ 5.611670] Bluetooth: Generic Bluetooth USB driver ver 0.6
[ 5.614248] usbcore: registered new interface driver btusb
[ 5.637852] cfg80211: World regulatory domain updated:
[ 5.637857] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 5.637863] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 5.637867] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 5.637871] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 5.637875] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 5.637878] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 5.644001] microcode: CPU0 updated to revision 0x17, date = 2011-04-07
[ 5.644649] microcode: CPU1 updated to revision 0x17, date = 2011-04-07
[ 5.645258] microcode: CPU2 updated to revision 0x17, date = 2011-04-07
[ 5.645905] microcode: CPU3 updated to revision 0x17, date = 2011-04-07
[ 5.819396] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[ 5.819508] HDA Intel 0000:00:1b.0: irq 53 for MSI/MSI-X
[ 5.819560] HDA Intel 0000:00:1b.0: setting latency timer to 64
[ 5.819775] udev[430]: renamed network interface eth0 to p34p1
[ 5.840962] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:d
[ 5.840967] iwlagn: Copyright(c) 2003-2010 Intel Corporation
[ 5.841083] iwlagn 0000:09:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 5.841093] iwlagn 0000:09:00.0: setting latency timer to 64
[ 5.841146] iwlagn 0000:09:00.0: Detected Intel(R) Centrino(R) Wireless-N 1030 BGN, REV=0xB0
[ 5.857793] iwlagn 0000:09:00.0: device EEPROM VER=0x716, CALIB=0x6
[ 5.857797] iwlagn 0000:09:00.0: Device SKU: 0X9
[ 5.857799] iwlagn 0000:09:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3
[ 5.857820] iwlagn 0000:09:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels
[ 5.857911] iwlagn 0000:09:00.0: irq 54 for MSI/MSI-X
[ 5.860612] iwlagn 0000:09:00.0: loaded firmware version 17.168.5.1 build 33993
[ 6.790672] Adding 1507324k swap on /dev/sdb3. Priority:0 extents:1 across:1507324k SS
[ 6.805215] cfg80211: Calling CRDA for country: IE
[ 6.810137] cfg80211: Regulatory domain changed to country: IE
[ 6.810142] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 6.810146] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 6.810150] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 6.810153] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 6.810157] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)
[ 6.811635] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 6.816123] ALSA sound/pci/hda/hda_codec.c:4633: autoconfig: line_outs=1 (0xd/0x0/0x0/0x0/0x0)
[ 6.816129] ALSA sound/pci/hda/hda_codec.c:4637: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 6.816132] ALSA sound/pci/hda/hda_codec.c:4641: hp_outs=1 (0xb/0x0/0x0/0x0/0x0)
[ 6.816135] ALSA sound/pci/hda/hda_codec.c:4642: mono: mono_out=0x0
[ 6.816138] ALSA sound/pci/hda/hda_codec.c:4646: inputs:
[ 6.816140] ALSA sound/pci/hda/hda_codec.c:4652:
[ 6.816351] ALSA sound/pci/hda/patch_sigmatel.c:3073: stac92xx: dac_nids=1 (0x13/0x0/0x0/0x0/0x0)
[ 6.828786] input: HDA Intel PCH Mic at Ext Right Jack as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[ 6.828894] input: HDA Intel PCH HP Out at Ext Right Jack as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 6.851570] systemd-fsck[636]: /dev/sdb1: clean, 285227/6406144 files, 21811502/25600000 blocks
[ 6.920810] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
[ 6.920821] SELinux: initialized (dev sdb1, type ext4), uses xattr
[ 7.844840] NetworkManager[735]: <info> NetworkManager (version 0.8.9997-2.git20110531.fc15) is starting...
[ 7.844853] NetworkManager[735]: <info> Read config file /etc/NetworkManager/NetworkManager.conf
[ 7.863248] ntpd[736]: ntpd 4.2.6p3@1.2290-o Fri May 6 16:26:49 UTC 2011 (1)
[ 7.863527] ntpd[736]: proto: precision = 0.068 usec
[ 7.863593] ntpd[736]: 0.0.0.0 c01d 0d kern kernel time sync enabled
[ 7.864011] ntpd[736]: ntp_io: estimated max descriptors: 1024, initial socket boundary: 16
[ 7.864286] ntpd[736]: Listen and drop on 0 v4wildcard 0.0.0.0 UDP 123
[ 7.866166] ntpd[736]: Listen and drop on 1 v6wildcard :: UDP 123
[ 7.866611] ntpd[736]: Listen normally on 2 lo 127.0.0.1 UDP 123
[ 7.866680] ntpd[736]: Listen normally on 3 lo ::1 UDP 123
[ 7.866727] ntpd[736]: peers refreshed
[ 7.866878] ntpd[736]: Listening on routing socket on fd #20 for interface updates
[ 7.869202] ntpd[736]: Deferring DNS for 0.fedora.pool.ntp.org 1
[ 7.869937] ntpd[736]: Deferring DNS for 1.fedora.pool.ntp.org 1
[ 7.870148] ntpd[736]: Deferring DNS for 2.fedora.pool.ntp.org 1
[ 7.870358] ntpd[736]: Deferring DNS for 3.fedora.pool.ntp.org 1
[ 7.870628] ntpd[736]: 0.0.0.0 c016 06 restart
[ 7.870644] ntpd[736]: 0.0.0.0 c012 02 freq_set kernel 8.514 PPM
[ 7.870755] ntpd[738]: signal_no_reset: signal 17 had flags 4000000
[ 7.950807] avahi-daemon[746]: Found user 'avahi' (UID 70) and group 'avahi' (GID 70).
[ 7.951160] avahi-daemon[746]: Successfully dropped root privileges.
[ 7.951441] avahi-daemon[746]: avahi-daemon 0.6.30 starting up.
[ 7.975015] smartd[747]: smartd 5.40 2010-10-16 r3189 [x86_64-redhat-linux-gnu] (local build)
[ 7.975033] smartd[747]: Opened configuration file /etc/smartd.conf
[ 7.975178] smartd[747]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices
[ 7.984309] smartd[747]: Device: /dev/sda, type changed from 'scsi' to 'sat'
[ 7.984394] smartd[747]: Device: /dev/sda [SAT], opened
[ 7.999299] smartd[747]: Device: /dev/sda [SAT], not found in smartd database.
[ 8.319868] dbus[762]: avc: netlink poll: error 4
[ 8.333641] NetworkManager[735]: <info> VPN: loaded org.freedesktop.NetworkManager.openvpn
[ 8.333840] NetworkManager[735]: <info> VPN: loaded org.freedesktop.NetworkManager.pptp
[ 8.333962] NetworkManager[735]: <info> VPN: loaded org.freedesktop.NetworkManager.openconnect
[ 8.334073] NetworkManager[735]: <info> VPN: loaded org.freedesktop.NetworkManager.vpnc
[ 8.335257] abrtd[743]: Init complete, entering main loop
[ 8.337073] avahi-daemon[746]: Successfully called chroot().
[ 8.337125] avahi-daemon[746]: Successfully dropped remaining capabilities.
[ 8.337514] avahi-daemon[746]: Loading service file /services/ssh.service.
[ 8.337676] avahi-daemon[746]: Loading service file /services/udisks.service.
[ 8.338479] avahi-daemon[746]: Network interface enumeration completed.
[ 8.338587] avahi-daemon[746]: Registering HINFO record with values 'X86_64'/'LINUX'.
[ 8.338758] avahi-daemon[746]: Server startup complete. Host name is pb-n5110.local. Local service cookie is 2886347264.
[ 8.338841] avahi-daemon[746]: Service "pb-n5110" (/services/udisks.service) successfully established.
[ 8.338878] avahi-daemon[746]: Service "pb-n5110" (/services/ssh.service) successfully established.
[ 8.339567] NetworkManager[735]: ifcfg-rh: Acquired D-Bus service com.redhat.ifcfgrh1
[ 8.339613] NetworkManager[735]: <info> Loaded plugin ifcfg-rh: (c) 2007 - 2010 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
[ 8.340038] NetworkManager[735]: <info> Loaded plugin keyfile: (c) 2007 - 2010 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
[ 8.340315] NetworkManager[735]: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
[ 8.340433] NetworkManager[735]: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-Auto_pixelbeat.wds ...
[ 8.344432] NetworkManager[735]: ifcfg-rh: read connection 'Auto pixelbeat.wds'
[ 8.348972] NetworkManager[735]: <info> trying to start the modem manager...
[ 8.349615] dbus[762]: [system] Activating service name='org.freedesktop.ModemManager' (using servicehelper)
[ 8.366535] modem-manager[775]: <info> ModemManager (version 0.4-8.git20110427.fc15) starting...
[ 8.369956] dbus[762]: [system] Activating service name='org.freedesktop.PolicyKit1' (using servicehelper)
[ 8.371216] dbus[762]: [system] Successfully activated service 'org.freedesktop.ModemManager'
[ 8.372244] modem-manager[775]: <info> Loaded plugin SimTech
[ 8.372471] modem-manager[775]: <info> Loaded plugin Generic
[ 8.372680] modem-manager[775]: <info> Loaded plugin MotoC
[ 8.372915] modem-manager[775]: <info> Loaded plugin ZTE
[ 8.373149] modem-manager[775]: <info> Loaded plugin Nokia
[ 8.373356] modem-manager[775]: <info> Loaded plugin AnyData
[ 8.373570] modem-manager[775]: <info> Loaded plugin Ericsson MBM
[ 8.373786] modem-manager[775]: <info> Loaded plugin Linktop
[ 8.373990] modem-manager[775]: <info> Loaded plugin Option
[ 8.374200] modem-manager[775]: <info> Loaded plugin Gobi
[ 8.374404] modem-manager[775]: <info> Loaded plugin Option High-Speed
[ 8.374628] modem-manager[775]: <info> Loaded plugin X22X
[ 8.374959] modem-manager[775]: <info> Loaded plugin Longcheer
[ 8.375114] modem-manager[775]: <info> Loaded plugin Sierra
[ 8.375321] modem-manager[775]: <info> Loaded plugin Wavecom
[ 8.375528] modem-manager[775]: <info> Loaded plugin Samsung
[ 8.375772] modem-manager[775]: <info> Loaded plugin Huawei
[ 8.375980] modem-manager[775]: <info> Loaded plugin Novatel
[ 8.406943] polkitd[779]: started daemon version 0.101 using authority implementation `local' version `0.101'
[ 8.409251] dbus[762]: [system] Successfully activated service 'org.freedesktop.PolicyKit1'
[ 8.414474] NetworkManager[735]: <info> monitoring kernel firmware directory '/lib/firmware'.
[ 8.416132] NetworkManager[735]: <info> found WiFi radio killswitch rfkill3 (at /sys/devices/pci0000:00/0000:00:1c.3/0000:09:00.0/ieee80211/phy0/rfkill3) (driver (unknown))
[ 8.416258] NetworkManager[735]: <info> found WiFi radio killswitch rfkill0 (at /sys/devices/platform/dell-laptop/rfkill/rfkill0) (driver dell-laptop)
[ 8.417277] dbus[762]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service'
[ 8.418772] NetworkManager[735]: <info> WiFi enabled by radio killswitch; enabled by state file
[ 8.418789] NetworkManager[735]: <info> WWAN enabled by radio killswitch; enabled by state file
[ 8.418802] NetworkManager[735]: <info> WiMAX enabled by radio killswitch; enabled by state file
[ 8.418827] NetworkManager[735]: <info> Networking is enabled by state file
[ 8.421314] NetworkManager[735]: <info> (p34p1): carrier is OFF
[ 8.421609] NetworkManager[735]: <info> (p34p1): new Ethernet device (driver: 'r8169' ifindex: 2)
[ 8.421655] NetworkManager[735]: <info> (p34p1): exported as /org/freedesktop/NetworkManager/Devices/0
[ 8.422707] NetworkManager[735]: <info> (p34p1): now managed
[ 8.422720] NetworkManager[735]: <info> (p34p1): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
[ 8.422731] NetworkManager[735]: <info> (p34p1): bringing up device.
[ 8.438460] r8169 0000:05:00.0: p34p1: link down
[ 8.439079] ADDRCONF(NETDEV_UP): p34p1: link is not ready
[ 8.440998] NetworkManager[735]: <info> (p34p1): preparing device.
[ 8.441012] NetworkManager[735]: <info> (p34p1): deactivating device (reason: 2).
[ 8.441613] NetworkManager[735]: <info> Added default wired connection 'Wired connection 1' for /sys/devices/pci0000:00/0000:00:1c.1/0000:05:00.0/net/p34p1
[ 8.443431] NetworkManager[735]: <info> (wlan0): driver supports SSID scans (scan_capa 0x01).
[ 8.443892] NetworkManager[735]: <info> (wlan0): new 802.11 WiFi device (driver: 'iwlagn' ifindex: 3)
[ 8.443978] NetworkManager[735]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devices/1
[ 8.444052] NetworkManager[735]: <info> (wlan0): now managed
[ 8.444114] NetworkManager[735]: <info> (wlan0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
[ 8.444173] NetworkManager[735]: <info> (wlan0): bringing up device.
[ 8.468051] /usr/sbin/crond[750]: (CRON) INFO (running with inotify support)
[ 8.587062] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 8.598160] dbus[762]: [system] Activation via systemd failed for unit 'dbus-org.bluez.service': Unit dbus-org.bluez.service failed to load: No such file or directory. See system logs and 'systemctl status' for details.
[ 8.610717] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 8.734716] systemd[1]: cgconfig.service: control process exited, code=exited status=1
[ 8.751326] systemd[1]: Unit cgconfig.service entered failed state.
[ 9.238464] auditd (865): /proc/865/oom_adj is deprecated, please use /proc/865/oom_score_adj instead.
[ 10.001491] RPC: Registered udp transport module.
[ 10.001496] RPC: Registered tcp transport module.
[ 10.001498] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 10.029975] SELinux: initialized (dev rpc_pipefs, type rpc_pipefs), uses genfs_contexts
[ 10.035886] 802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
[ 10.035892] All bugs added by David S. Miller <davem@redhat.com>
[ 10.125248] Bridge firewalling registered
[ 10.587622] Ebtables v2.0 registered
[ 10.856220] SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs
[ 10.856351] SELinux: initialized (dev proc, type proc), uses genfs_contexts
[ 10.875765] SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs
[ 10.877668] SELinux: initialized (dev proc, type proc), uses genfs_contexts
[ 10.895207] wlan0: authenticate with 00:18:39:d4:0d:31 (try 1)
[ 10.897370] wlan0: authenticated
[ 10.913755] wlan0: associate with 00:18:39:d4:0d:31 (try 1)
[ 10.916321] wlan0: RX AssocResp from 00:18:39:d4:0d:31 (capab=0x411 status=0 aid=2)
[ 10.916330] wlan0: associated
[ 10.929040] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 17.322909] fuse init (API version 7.16)
[ 17.341840] SELinux: initialized (dev fuse, type fuse), uses genfs_contexts
[ 17.381113] SELinux: initialized (dev fusectl, type fusectl), uses genfs_contexts
[ 21.224527] wlan0: no IPv6 routers present
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-22 10:19 ` Pádraig Brady
@ 2011-06-23 11:46 ` Mel Gorman
2011-06-23 13:04 ` Pádraig Brady
0 siblings, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-23 11:46 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Wed, Jun 22, 2011 at 11:19:11AM +0100, P?draig Brady wrote:
> On 22/06/11 10:44, Mel Gorman wrote:
> > I haven't started looking at this properly yet (stuck with other
> > bugs unfortunately) but I glanced at the sysrq message and on a 2G
> > 64-bit machine, you have a tiny Normal zone! This is very unexpected.
> > Can you boot with mminit_loglevel=4 loglevel=9 and post your full
> > dmesg please? I want to see what the memory layout of this thing
> > looks like to see in the future if there is a correlation between
> > this type of bug and a tiny highest zone.
>
> Note this machine has 3G RAM
My bad, I read the 2G from Dan Doel's machine in the bugzilla. I
still haven't been able to reproduce this locally but that's not new.
Eventually one of these laptops will show up on ebay :/
> dmesg attached
>
> >
> > Broadly speaking though from seeing that, it reminds me of a
> > similar bug where small zones could keep kswapd alive for high-order
> > allocations reclaiming slab constantly. I suspect on your machine
> > that the Normal zone cannot be balanced for order-0 allocations and
> > is keeping kswapd awake.
> >
> > Can you try booting with mem=1792M and if the Normal zone disappears,
> > try reproducing the bug?
> >
>
> I tried mem=1792M but grub gave an ENOSPC error
> Maybe I need to supply a memmap= too?
Not sure what is going on there unfortunately. The range of memory
grub should be using for the initrd and kernel image should be still
available with those parameters.
> [ 0.000000] Initializing cgroup subsys cpuset
> [ 0.000000] Initializing cgroup subsys cpu
> [ 0.000000] Linux version 2.6.38.8-32.fc15.x86_64 (padraig@pb-n5110) (gcc version 4.6.0 20110509 (Red Hat 4.6.0-7) (GCC) ) #5 SMP Tue Jun 21 16:24:12 IST 2011
> [ 0.000000] Command line: ro root=UUID=da48811c-7aeb-4514-8c75-a56a82bba9fa rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=uk rhgb quiet mminit_loglevel=4 loglevel=9
> [ 0.000000] BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009d400 (usable)
> [ 0.000000] BIOS-e820: 000000000009d400 - 00000000000a0000 (reserved)
> [ 0.000000] BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
> [ 0.000000] BIOS-e820: 0000000000100000 - 0000000020000000 (usable)
> [ 0.000000] BIOS-e820: 0000000020000000 - 0000000020200000 (reserved)
> [ 0.000000] BIOS-e820: 0000000020200000 - 0000000040000000 (usable)
> [ 0.000000] BIOS-e820: 0000000040000000 - 0000000040200000 (reserved)
> [ 0.000000] BIOS-e820: 0000000040200000 - 00000000b9ce3000 (usable)
> [ 0.000000] BIOS-e820: 00000000b9ce3000 - 00000000b9d26000 (ACPI NVS)
> [ 0.000000] BIOS-e820: 00000000b9d26000 - 00000000b9f92000 (usable)
> [ 0.000000] BIOS-e820: 00000000b9f92000 - 00000000ba167000 (reserved)
> [ 0.000000] BIOS-e820: 00000000ba167000 - 00000000ba3a9000 (usable)
> [ 0.000000] BIOS-e820: 00000000ba3a9000 - 00000000ba568000 (reserved)
> [ 0.000000] BIOS-e820: 00000000ba568000 - 00000000ba7e8000 (ACPI NVS)
> [ 0.000000] BIOS-e820: 00000000ba7e8000 - 00000000ba800000 (ACPI data)
> [ 0.000000] BIOS-e820: 00000000bb000000 - 00000000bf200000 (reserved)
> [ 0.000000] BIOS-e820: 00000000f8000000 - 00000000fc000000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fed00000 - 00000000fed04000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fed1c000 - 00000000fed20000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
> [ 0.000000] BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved)
> [ 0.000000] BIOS-e820: 0000000100000000 - 0000000100600000 (usable)
> [ 0.000000] Faking a node at 0000000000000000-0000000100600000
> [ 0.000000] mminit::memory_register Entering add_active_range(0, 0x10, 0x9d) 0 entries of 25600 used
> [ 0.000000] mminit::memory_register Entering add_active_range(0, 0x100, 0x20000) 1 entries of 25600 used
> [ 0.000000] mminit::memory_register Entering add_active_range(0, 0x20200, 0x40000) 2 entries of 25600 used
> [ 0.000000] mminit::memory_register Entering add_active_range(0, 0x40200, 0xb9ce3) 3 entries of 25600 used
> [ 0.000000] mminit::memory_register Entering add_active_range(0, 0xb9d26, 0xb9f92) 4 entries of 25600 used
> [ 0.000000] mminit::memory_register Entering add_active_range(0, 0xba167, 0xba3a9) 5 entries of 25600 used
> [ 0.000000] mminit::memory_register Entering add_active_range(0, 0x100000, 0x100600) 6 entries of 25600 used
> [ 0.000000] Initmem setup node 0 0000000000000000-0000000100600000
> [ 0.000000] NODE_DATA [00000001005ec000 - 00000001005fffff]
> [ 0.000000] [ffffea0000000000-ffffea00039fffff] PMD -> [ffff88001b600000-ffff88001e1fffff] on node 0
> [ 0.000000] Zone PFN ranges:
> [ 0.000000] DMA 0x00000010 -> 0x00001000
> [ 0.000000] DMA32 0x00001000 -> 0x00100000
> [ 0.000000] Normal 0x00100000 -> 0x00100600
The address space for DMA32 is oddly fragmented with just enough device
mappings to create a small Normal zone of 6M which I can replicate
with movablecore=. Unfortunately, I only saw really high kswapd usage
once and it didn't hang with the same severity. I wasn't running X
which based on your profile is a factor though so will try again. We
could figure out exactly what devices with /proc/iomem and lspci but
it's not important. Am going to mark it down as a quirk of the laptop.
Based on the information you have provided from sysrq and the profile,
I put together a theory as to what is going wrong for your machine at
least although I somehow doubt the same fix will work for Dan. Can you
try out the following please? It's against 2.6.38.8 (and presumably
Fedora) but will apply with offset against 2.6.39 and 3.0-rc4.
==== CUT HERE ====
mm: vmscan: Correct check for kswapd sleeping in sleeping_prematurely
During allocator-intensive workloads, kswapd will be woken frequently
causing free memory to oscillate between the high and min watermark.
This is expected behaviour.
A problem occurs if the highest zone is small that keeps kswapd awake.
balance_pgdat() only considers unreclaimable zones when priority
is DEF_PRIORITY but sleeping_prematurely considers all zones. It's
possible for this sequence to occur
1. kswapd wakes up and enters balance_pgdat()
2. At DEF_PRIORITY, marks highest zone unreclaimable
3. At DEF_PRIORITY-1, ignores highest zone setting end_zone
4. At DEF_PRIORITY-1, calls shrink_slab freeing memory from
highest zone, clearing all_unreclaimable. Highest zone
is still unbalanced
5. kswapd returns and calls sleeping_prematurely before sleep
6. sleeping_prematurely looks at *all* zones, not just the ones
being considered by balance_pgdat. The highest small zone
has all_unreclaimable cleared but the zone is not
balanced. all_zones_ok is false so kswapd stays awake
The impact is that kswapd chews up a lot of CPU as it avoids most of
the scheduling points and reclaims excessively from the lower zones.
This patch corrects the behaviour of sleeping_prematurely to check
the zones balance_pgdat() checked.
Reported-by: Padraig Brady <P@draigBrady.com>
Not-signed-off-awaiting-confirmation: Mel Gorman <mgorman@suse.de>
---
mm/vmscan.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a74bf72..a578535 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2261,7 +2261,7 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining,
return true;
/* Check the watermark levels */
- for (i = 0; i < pgdat->nr_zones; i++) {
+ for (i = 0; i <= classzone_idx; i++) {
struct zone *zone = pgdat->node_zones + i;
if (!populated_zone(zone))
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
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^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-23 11:46 ` Mel Gorman
@ 2011-06-23 13:04 ` Pádraig Brady
2011-06-23 15:24 ` Mel Gorman
0 siblings, 1 reply; 21+ messages in thread
From: Pádraig Brady @ 2011-06-23 13:04 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
On 23/06/11 12:46, Mel Gorman wrote:
> Based on the information you have provided from sysrq and the profile,
> I put together a theory as to what is going wrong for your machine at
> least although I somehow doubt the same fix will work for Dan. Can you
> try out the following please? It's against 2.6.38.8 (and presumably
> Fedora) but will apply with offset against 2.6.39 and 3.0-rc4.
>
> ==== CUT HERE ====
> mm: vmscan: Correct check for kswapd sleeping in sleeping_prematurely
>
> During allocator-intensive workloads, kswapd will be woken frequently
> causing free memory to oscillate between the high and min watermark.
> This is expected behaviour.
>
> A problem occurs if the highest zone is small that keeps kswapd awake.
> balance_pgdat() only considers unreclaimable zones when priority
> is DEF_PRIORITY but sleeping_prematurely considers all zones. It's
> possible for this sequence to occur
>
> 1. kswapd wakes up and enters balance_pgdat()
> 2. At DEF_PRIORITY, marks highest zone unreclaimable
> 3. At DEF_PRIORITY-1, ignores highest zone setting end_zone
> 4. At DEF_PRIORITY-1, calls shrink_slab freeing memory from
> highest zone, clearing all_unreclaimable. Highest zone
> is still unbalanced
> 5. kswapd returns and calls sleeping_prematurely before sleep
> 6. sleeping_prematurely looks at *all* zones, not just the ones
> being considered by balance_pgdat. The highest small zone
> has all_unreclaimable cleared but the zone is not
> balanced. all_zones_ok is false so kswapd stays awake
>
> The impact is that kswapd chews up a lot of CPU as it avoids most of
> the scheduling points and reclaims excessively from the lower zones.
> This patch corrects the behaviour of sleeping_prematurely to check
> the zones balance_pgdat() checked.
>
> Reported-by: Padraig Brady <P@draigBrady.com>
> Not-signed-off-awaiting-confirmation: Mel Gorman <mgorman@suse.de>
> ---
> mm/vmscan.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index a74bf72..a578535 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -2261,7 +2261,7 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining,
> return true;
>
> /* Check the watermark levels */
> - for (i = 0; i < pgdat->nr_zones; i++) {
> + for (i = 0; i <= classzone_idx; i++) {
> struct zone *zone = pgdat->node_zones + i;
>
> if (!populated_zone(zone))
No joy :(
cheers,
Padraig.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
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Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-23 13:04 ` Pádraig Brady
@ 2011-06-23 15:24 ` Mel Gorman
2011-06-23 15:32 ` Pádraig Brady
0 siblings, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-23 15:24 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Thu, Jun 23, 2011 at 02:04:15PM +0100, P?draig Brady wrote:
> On 23/06/11 12:46, Mel Gorman wrote:
> > Based on the information you have provided from sysrq and the profile,
> > I put together a theory as to what is going wrong for your machine at
> > least although I somehow doubt the same fix will work for Dan. Can you
> > try out the following please? It's against 2.6.38.8 (and presumably
> > Fedora) but will apply with offset against 2.6.39 and 3.0-rc4.
> >
> > ==== CUT HERE ====
> > mm: vmscan: Correct check for kswapd sleeping in sleeping_prematurely
> >
> > <SNIP>
>
> No joy :(
>
Theory 2 it is then. This is to be applied on top of the patch for
theory 1.
==== CUT HERE ====
mm: vmscan: Prevent kswapd doing excessive work when classzone is unreclaimable
During allocator-intensive workloads, kswapd will be woken frequently
causing free memory to oscillate between the high and min watermark.
This is expected behaviour. Unfortunately, if the highest zone is
small, a problem occurs.
When the lower zones are below their min watermark, kswapd gets woken
as expected and starts to balance zones. If zones are unreclaimable,
they are ignored when the priority raises but priority is reset to
DEF_PRIORITY if SWAP_RECLAIM_MAX pages are reclaimed.
If the highest zone is small, kswapd can then get into a loop
reclaiming from lower zones and shrinking slab while never balancing
the node due to the highest zone being unreclaimable. As a small
highest zone is also first on the zonelist, it can easily get under its
min watermark quickly. This causes kswapd to miss a congestion_wait and
instead use a lot of CPU while reclaiming an excessive number of pages.
This patch checks if the node is balanced overall if the classzone
is unreclaimable. If the node is balanced overall, kswapd will stop
reclaiming and attempt to go to sleep.
Reported-by: Padraig Brady <P@draigBrady.com>
Not-signed-off-awaiting-confirmation: Mel Gorman <mgorman@suse.de>
---
mm/vmscan.c | 27 ++++++++++++++++++++-------
1 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a578535..dce95dd 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2221,12 +2221,13 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont,
#endif
/*
- * pgdat_balanced is used when checking if a node is balanced for high-order
- * allocations. Only zones that meet watermarks and are in a zone allowed
+ * pgdat_balanced is used for high-order allocations and for unreclaimable
+ * classzones. Only zones that meet watermarks and are in a zone allowed
* by the callers classzone_idx are added to balanced_pages. The total of
* balanced pages must be at least 25% of the zones allowed by classzone_idx
* for the node to be considered balanced. Forcing all zones to be balanced
- * for high orders can cause excessive reclaim when there are imbalanced zones.
+ * for high orders can cause excessive reclaim when there are imbalanced zones
+ * or when the highest zone is very small.
* The choice of 25% is due to
* o a 16M DMA zone that is balanced will not balance a zone on any
* reasonable sized machine
@@ -2381,7 +2382,6 @@ loop_again:
if (!zone_watermark_ok_safe(zone, order,
high_wmark_pages(zone), 0, 0)) {
end_zone = i;
- *classzone_idx = i;
break;
}
}
@@ -2468,12 +2468,12 @@ loop_again:
* spectulatively avoid congestion waits
*/
zone_clear_flag(zone, ZONE_CONGESTED);
- if (i <= *classzone_idx)
+ if (i <= end_zone)
balanced += zone->present_pages;
}
}
- if (all_zones_ok || (order && pgdat_balanced(pgdat, balanced, *classzone_idx)))
+ if (all_zones_ok || (order && pgdat_balanced(pgdat, balanced, end_zone)))
break; /* kswapd: all done */
/*
* OK, kswapd is getting into trouble. Take a nap, then take
@@ -2496,13 +2496,26 @@ loop_again:
break;
}
out:
+ /*
+ * When the classzone is a high zone but small, it is very easy for
+ * it to become unreclaimable with the bulk of reclaim happening
+ * at lower zones. At higher priorities, they are ignored but as
+ * priority gets reset after SWAP_CLUSTER_MAX pages, kswapd can
+ * loop continually trying to balance a small unreclaimable high
+ * zone. If the classzone is unreclaimable, check if the node overall
+ * is ok and if no, discontinue reclaiming to avoid excessive reclaim
+ * and CPU usage.
+ */
+ if (pgdat->node_zones[*classzone_idx].all_unreclaimable &&
+ pgdat_balanced(pgdat, balanced, *classzone_idx))
+ all_zones_ok = 1;
/*
* order-0: All zones must meet high watermark for a balanced node
* high-order: Balanced zones must make up at least 25% of the node
* for the node to be balanced
*/
- if (!(all_zones_ok || (order && pgdat_balanced(pgdat, balanced, *classzone_idx)))) {
+ if (!(all_zones_ok || (order && pgdat_balanced(pgdat, balanced, end_zone)))) {
cond_resched();
try_to_freeze();
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
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^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-23 15:24 ` Mel Gorman
@ 2011-06-23 15:32 ` Pádraig Brady
2011-06-23 16:59 ` Mel Gorman
0 siblings, 1 reply; 21+ messages in thread
From: Pádraig Brady @ 2011-06-23 15:32 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
On 23/06/11 16:24, Mel Gorman wrote:
>
> Theory 2 it is then. This is to be applied on top of the patch for
> theory 1.
>
> ==== CUT HERE ====
> mm: vmscan: Prevent kswapd doing excessive work when classzone is unreclaimable
No joy :(
cheers,
Padraig.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-23 15:32 ` Pádraig Brady
@ 2011-06-23 16:59 ` Mel Gorman
2011-06-23 19:25 ` Pádraig Brady
0 siblings, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-23 16:59 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Thu, Jun 23, 2011 at 04:32:27PM +0100, P?draig Brady wrote:
> On 23/06/11 16:24, Mel Gorman wrote:
> >
> > Theory 2 it is then. This is to be applied on top of the patch for
> > theory 1.
> >
> > ==== CUT HERE ====
> > mm: vmscan: Prevent kswapd doing excessive work when classzone is unreclaimable
>
> No joy :(
>
Joy is indeed rapidly fleeing the vicinity.
Check /proc/sys/vm/laptop_mode . If it's set, unset it and try again.
If it's still broken, it's time for theory 3. Still against 2.6.38
and on top of theories 1+2.
==== CUT HERE ====
mm: vmscan: Do not apply pressure to slab if we are not applying pressure to zone
When kswapd applies pressure to zones during node balancing, it checks
if the zone is above a high+balance_gap threshold. If it is, it does
not apply pressure but it unconditionally shrinks slab on a global
basis which is excessive. In the event kswapd is being kept awake due to
a high small unreclaimable zone, it can end up spinning calling
shrink_slab() uselessly.
Once pressure has been applied, the check for zone being unreclaimable
is being made before the check is made if all_unreclaimable should
be set and avoids accounting for scanned in laptop_mode. This miss
of an unreclaimable check can cause has_under_min_watermark_zone to
be set due to an unreclaimable zone preventing kswapd backing off
on congestion_wait().
---
mm/vmscan.c | 27 +++++++++++++++------------
1 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index dce95dd..c8c0f5a 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2426,19 +2426,19 @@ loop_again:
* zone has way too many pages free already.
*/
if (!zone_watermark_ok_safe(zone, order,
- 8*high_wmark_pages(zone), end_zone, 0))
- shrink_zone(priority, zone, &sc);
- reclaim_state->reclaimed_slab = 0;
- nr_slab = shrink_slab(sc.nr_scanned, GFP_KERNEL,
- lru_pages);
- sc.nr_reclaimed += reclaim_state->reclaimed_slab;
- total_scanned += sc.nr_scanned;
+ 8*high_wmark_pages(zone), end_zone, 0)) {
+ shrink_zone(priority, zone, &sc);
+
+ reclaim_state->reclaimed_slab = 0;
+ nr_slab = shrink_slab(sc.nr_scanned, GFP_KERNEL,
+ lru_pages);
+ sc.nr_reclaimed += reclaim_state->reclaimed_slab;
+ total_scanned += sc.nr_scanned;
+
+ if (nr_slab == 0 && !zone_reclaimable(zone))
+ zone->all_unreclaimable = 1;
+ }
- if (zone->all_unreclaimable)
- continue;
- if (nr_slab == 0 &&
- !zone_reclaimable(zone))
- zone->all_unreclaimable = 1;
/*
* If we've done a decent amount of scanning and
* the reclaim ratio is low, start doing writepage
@@ -2448,6 +2448,9 @@ loop_again:
total_scanned > sc.nr_reclaimed + sc.nr_reclaimed / 2)
sc.may_writepage = 1;
+ if (zone->all_unreclaimable)
+ continue;
+
if (!zone_watermark_ok_safe(zone, order,
high_wmark_pages(zone), end_zone, 0)) {
all_zones_ok = 0;
--
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^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-23 16:59 ` Mel Gorman
@ 2011-06-23 19:25 ` Pádraig Brady
2011-06-24 11:44 ` Mel Gorman
0 siblings, 1 reply; 21+ messages in thread
From: Pádraig Brady @ 2011-06-23 19:25 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
On 23/06/11 17:59, Mel Gorman wrote:
> On Thu, Jun 23, 2011 at 04:32:27PM +0100, P?draig Brady wrote:
>> On 23/06/11 16:24, Mel Gorman wrote:
>>>
>>> Theory 2 it is then. This is to be applied on top of the patch for
>>> theory 1.
>>>
>>> ==== CUT HERE ====
>>> mm: vmscan: Prevent kswapd doing excessive work when classzone is unreclaimable
>>
>> No joy :(
>>
>
> Joy is indeed rapidly fleeing the vicinity.
>
> Check /proc/sys/vm/laptop_mode . If it's set, unset it and try again.
It was not set
>
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index dce95dd..c8c0f5a 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -2426,19 +2426,19 @@ loop_again:
> * zone has way too many pages free already.
> */
> if (!zone_watermark_ok_safe(zone, order,
> - 8*high_wmark_pages(zone), end_zone, 0))
Note 8 was not in my tree.
Manually applied patch makes no difference :(
Well maybe kswapd0 started spinning a little later.
cheers,
Padraig.
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-21 14:23 ` Pádraig Brady
2011-06-22 9:44 ` Mel Gorman
@ 2011-06-24 6:33 ` Shaohua Li
1 sibling, 0 replies; 21+ messages in thread
From: Shaohua Li @ 2011-06-24 6:33 UTC (permalink / raw)
To: Pádraig Brady; +Cc: Mel Gorman, linux-mm@kvack.org
On Tue, 2011-06-21 at 22:23 +0800, PA!draig Brady wrote:
> On 21/06/11 14:07, Mel Gorman wrote:
> > On Tue, Jun 21, 2011 at 12:59:00PM +0100, P?draig Brady wrote:
> >> On 21/06/11 12:34, Mel Gorman wrote:
> >>> On Tue, Jun 21, 2011 at 11:47:35AM +0100, P?draig Brady wrote:
> >>>> On 21/06/11 11:39, Mel Gorman wrote:
> >>>>> On Tue, Jun 21, 2011 at 10:53:02AM +0100, P?draig Brady wrote:
> >>>>>> I tried the 2 patches here to no avail:
> >>>>>> http://marc.info/?l=linux-mm&m=130503811704830&w=2
> >>>>>>
> >>>>>> I originally logged this at:
> >>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=712019
> >>>>>>
> >>>>>> I can compile up and quickly test any suggestions.
> >>>>>>
> >>>>>
> >>>>> I recently looked through what kswapd does and there are a number
> >>>>> of problem areas. Unfortunately, I haven't gotten around to doing
> >>>>> anything about it yet or running the test cases to see if they are
> >>>>> really problems. In your case, the following is a strong possibility
> >>>>> though. This should be applied on top of the two patches merged from
> >>>>> that thread.
> >>>>>
> >>>>> This is not tested in any way, based on 3.0-rc3
> >>>>
> >>>> This does not fix the issue here.
> >>>>
> >>>
> >>> I made a silly mistake here. When you mentioned two patches applied,
> >>> I assumed you meant two patches that were finally merged from that
> >>> discussion thread instead of looking at your linked mail. Now that I
> >>> have checked, I think you applied the SLUB patches while the patches
> >>> I was thinking of are;
> >>>
> >>> [afc7e326: mm: vmscan: correct use of pgdat_balanced in sleeping_prematurely]
> >>> [f06590bd: mm: vmscan: correctly check if reclaimer should schedule during shrink_slab]
> >>>
> >>> The first one in particular has been reported by another user to fix
> >>> hangs related to copying large files. I'm assuming you are testing
> >>> against the Fedora kernel. As these patches were merged for 3.0-rc1, can
> >>> you check if applying just these two patches to your kernel helps?
> >>
> >> These patches are already present in my 2.6.38.8-32.fc15.x86_64 kernel :(
> >>
> >
> > Would it be possible to record a profile while it is livelocked to check
> > if it's stuck in this loop in shrink_slab()?
>
> I did:
>
> perf record -a -g sleep 10
> perf report --stdio > livelock.perf #attached
> perf annotate shrink_slab -k rpmbuild/BUILD/kernel-2.6.38.fc15/linux-2.6.38.x86_64/vmlinux > shrink_slab.annotate #attached
>
> >
> > while (total_scan >= SHRINK_BATCH) {
> > long this_scan = SHRINK_BATCH;
> > int shrink_ret;
> > int nr_before;
> >
> > nr_before = do_shrinker_shrink(shrinker, shrink, 0);
> > shrink_ret = do_shrinker_shrink(shrinker, shrink,
> > this_scan);
> > if (shrink_ret == -1)
> > break;
> > if (shrink_ret < nr_before)
> > ret += nr_before - shrink_ret;
> > count_vm_events(SLABS_SCANNED, this_scan);
> > total_scan -= this_scan;
> >
> > cond_resched();
> > }
>
> shrink_slab() looks to be the culprit, but it seems
> to be the loop outside the above that is spinning.
>
> > Also, can you post the output of sysrq+m at a few different times while
> > kswapd is spinning heavily? I want to see if all_unreclaimable has been
> > set on zones with a reasonable amount of memory. If they are, it's
> > possible for kswapd to be in a continual loop calling shrink_slab() and
> > skipping over normal page reclaim because all_unreclaimable is set
> > everywhere until a page is freed.
>
> I did that 3 times. Attached.
from the perf log:
62.70% kswapd0 [i915] [k]
i915_gem_object_bind_to_gtt
|
--- i915_gem_object_bind_to_gtt
|
|--99.98%-- shrink_slab
| kswapd
Maybe a graphics driver bug. shrink_slab tries to free memory, but
i915_gem_object_bind_gtt could do memory allocation, IIRC.
Thanks,
Shaohua
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-23 19:25 ` Pádraig Brady
@ 2011-06-24 11:44 ` Mel Gorman
2011-06-24 13:10 ` Pádraig Brady
0 siblings, 1 reply; 21+ messages in thread
From: Mel Gorman @ 2011-06-24 11:44 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Thu, Jun 23, 2011 at 08:25:40PM +0100, P?draig Brady wrote:
> On 23/06/11 17:59, Mel Gorman wrote:
> > On Thu, Jun 23, 2011 at 04:32:27PM +0100, P?draig Brady wrote:
> >> On 23/06/11 16:24, Mel Gorman wrote:
> >>>
> >>> Theory 2 it is then. This is to be applied on top of the patch for
> >>> theory 1.
> >>>
> >>> ==== CUT HERE ====
> >>> mm: vmscan: Prevent kswapd doing excessive work when classzone is unreclaimable
> >>
> >> No joy :(
> >>
> >
> > Joy is indeed rapidly fleeing the vicinity.
> >
> > Check /proc/sys/vm/laptop_mode . If it's set, unset it and try again.
>
> It was not set
>
> >
> > diff --git a/mm/vmscan.c b/mm/vmscan.c
> > index dce95dd..c8c0f5a 100644
> > --- a/mm/vmscan.c
> > +++ b/mm/vmscan.c
> > @@ -2426,19 +2426,19 @@ loop_again:
> > * zone has way too many pages free already.
> > */
> > if (!zone_watermark_ok_safe(zone, order,
> > - 8*high_wmark_pages(zone), end_zone, 0))
>
> Note 8 was not in my tree.
> Manually applied patch makes no difference :(
> Well maybe kswapd0 started spinning a little later.
>
Gack :)
On further reflection "mm: vmscan: Prevent kswapd doing excessive
work when classzone is unreclaimable" was off but it was along the
right lines in that the balancing classzone was not being considered
when going to sleep.
The following is a patch against mainline 2.6.38.8 and is a
roll-up of four separate patches that includes a new modification to
sleeping_prematurely. Because the stack I am working off has changed
significantly, it's far easier if you apply this on top of a vanilla
fedora branch of 2.6.38 and test rather than trying to backout and
reapply. Depending on when you checked out or if you have applied the
BALANCE_GAP patch yourself, it might collide with 8*high_wmark_pages
but the resolution should be straight-forward.
Thanks for persisting.
==== CUT HERE ====
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a74bf72..da45335 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2261,7 +2261,7 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining,
return true;
/* Check the watermark levels */
- for (i = 0; i < pgdat->nr_zones; i++) {
+ for (i = 0; i <= classzone_idx; i++) {
struct zone *zone = pgdat->node_zones + i;
if (!populated_zone(zone))
@@ -2279,7 +2279,7 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining,
}
if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone),
- classzone_idx, 0))
+ i, 0))
all_zones_ok = false;
else
balanced += zone->present_pages;
@@ -2381,7 +2381,6 @@ loop_again:
if (!zone_watermark_ok_safe(zone, order,
high_wmark_pages(zone), 0, 0)) {
end_zone = i;
- *classzone_idx = i;
break;
}
}
@@ -2426,19 +2425,19 @@ loop_again:
* zone has way too many pages free already.
*/
if (!zone_watermark_ok_safe(zone, order,
- 8*high_wmark_pages(zone), end_zone, 0))
- shrink_zone(priority, zone, &sc);
- reclaim_state->reclaimed_slab = 0;
- nr_slab = shrink_slab(sc.nr_scanned, GFP_KERNEL,
- lru_pages);
- sc.nr_reclaimed += reclaim_state->reclaimed_slab;
- total_scanned += sc.nr_scanned;
-
- if (zone->all_unreclaimable)
- continue;
- if (nr_slab == 0 &&
- !zone_reclaimable(zone))
- zone->all_unreclaimable = 1;
+ 8*high_wmark_pages(zone), end_zone, 0)) {
+ shrink_zone(priority, zone, &sc);
+
+ reclaim_state->reclaimed_slab = 0;
+ nr_slab = shrink_slab(sc.nr_scanned, GFP_KERNEL,
+ lru_pages);
+ sc.nr_reclaimed += reclaim_state->reclaimed_slab;
+ total_scanned += sc.nr_scanned;
+
+ if (nr_slab == 0 && !zone_reclaimable(zone))
+ zone->all_unreclaimable = 1;
+ }
+
/*
* If we've done a decent amount of scanning and
* the reclaim ratio is low, start doing writepage
@@ -2448,6 +2447,12 @@ loop_again:
total_scanned > sc.nr_reclaimed + sc.nr_reclaimed / 2)
sc.may_writepage = 1;
+ if (zone->all_unreclaimable) {
+ if (end_zone && end_zone == i)
+ end_zone--;
+ continue;
+ }
+
if (!zone_watermark_ok_safe(zone, order,
high_wmark_pages(zone), end_zone, 0)) {
all_zones_ok = 0;
@@ -2626,8 +2631,8 @@ static void kswapd_try_to_sleep(pg_data_t *pgdat, int order, int classzone_idx)
*/
static int kswapd(void *p)
{
- unsigned long order;
- int classzone_idx;
+ unsigned long order, new_order;
+ int classzone_idx, new_classzone_idx;
pg_data_t *pgdat = (pg_data_t*)p;
struct task_struct *tsk = current;
@@ -2657,17 +2662,23 @@ static int kswapd(void *p)
tsk->flags |= PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD;
set_freezable();
- order = 0;
- classzone_idx = MAX_NR_ZONES - 1;
+ order = new_order = 0;
+ classzone_idx = new_classzone_idx = pgdat->nr_zones - 1;
for ( ; ; ) {
- unsigned long new_order;
- int new_classzone_idx;
int ret;
- new_order = pgdat->kswapd_max_order;
- new_classzone_idx = pgdat->classzone_idx;
- pgdat->kswapd_max_order = 0;
- pgdat->classzone_idx = MAX_NR_ZONES - 1;
+ /*
+ * If the last balance_pgdat was unsuccessful it's unlikely a
+ * new request of a similar or harder type will succeed soon
+ * so consider going to sleep on the basis we reclaimed at
+ */
+ if (classzone_idx >= new_classzone_idx && order == new_order) {
+ new_order = pgdat->kswapd_max_order;
+ new_classzone_idx = pgdat->classzone_idx;
+ pgdat->kswapd_max_order = 0;
+ pgdat->classzone_idx = pgdat->nr_zones - 1;
+ }
+
if (order < new_order || classzone_idx > new_classzone_idx) {
/*
* Don't sleep if someone wants a larger 'order'
@@ -2680,7 +2691,7 @@ static int kswapd(void *p)
order = pgdat->kswapd_max_order;
classzone_idx = pgdat->classzone_idx;
pgdat->kswapd_max_order = 0;
- pgdat->classzone_idx = MAX_NR_ZONES - 1;
+ pgdat->classzone_idx = pgdat->nr_zones - 1;
}
ret = try_to_freeze();
--
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^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-24 11:44 ` Mel Gorman
@ 2011-06-24 13:10 ` Pádraig Brady
2011-06-24 15:04 ` Mel Gorman
0 siblings, 1 reply; 21+ messages in thread
From: Pádraig Brady @ 2011-06-24 13:10 UTC (permalink / raw)
To: Mel Gorman; +Cc: linux-mm
On 24/06/11 12:44, Mel Gorman wrote:
> On Thu, Jun 23, 2011 at 08:25:40PM +0100, P?draig Brady wrote:
>> On 23/06/11 17:59, Mel Gorman wrote:
>>> On Thu, Jun 23, 2011 at 04:32:27PM +0100, P?draig Brady wrote:
>>>> On 23/06/11 16:24, Mel Gorman wrote:
>>>>>
>>>>> Theory 2 it is then. This is to be applied on top of the patch for
>>>>> theory 1.
>>>>>
>>>>> ==== CUT HERE ====
>>>>> mm: vmscan: Prevent kswapd doing excessive work when classzone is unreclaimable
>>>>
>>>> No joy :(
>>>>
>>>
>>> Joy is indeed rapidly fleeing the vicinity.
>>>
>>> Check /proc/sys/vm/laptop_mode . If it's set, unset it and try again.
>>
>> It was not set
>>
>>>
>>> diff --git a/mm/vmscan.c b/mm/vmscan.c
>>> index dce95dd..c8c0f5a 100644
>>> --- a/mm/vmscan.c
>>> +++ b/mm/vmscan.c
>>> @@ -2426,19 +2426,19 @@ loop_again:
>>> * zone has way too many pages free already.
>>> */
>>> if (!zone_watermark_ok_safe(zone, order,
>>> - 8*high_wmark_pages(zone), end_zone, 0))
>>
>> Note 8 was not in my tree.
>> Manually applied patch makes no difference :(
>> Well maybe kswapd0 started spinning a little later.
>>
>
> Gack :)
>
> On further reflection "mm: vmscan: Prevent kswapd doing excessive
> work when classzone is unreclaimable" was off but it was along the
> right lines in that the balancing classzone was not being considered
> when going to sleep.
>
> The following is a patch against mainline 2.6.38.8 and is a
> roll-up of four separate patches that includes a new modification to
> sleeping_prematurely. Because the stack I am working off has changed
> significantly, it's far easier if you apply this on top of a vanilla
> fedora branch of 2.6.38 and test rather than trying to backout and
> reapply. Depending on when you checked out or if you have applied the
> BALANCE_GAP patch yourself, it might collide with 8*high_wmark_pages
> but the resolution should be straight-forward.
>
> Thanks for persisting.
Bingo!
--
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: sandy bridge kswapd0 livelock with pagecache
2011-06-24 13:10 ` Pádraig Brady
@ 2011-06-24 15:04 ` Mel Gorman
0 siblings, 0 replies; 21+ messages in thread
From: Mel Gorman @ 2011-06-24 15:04 UTC (permalink / raw)
To: P?draig Brady; +Cc: linux-mm
On Fri, Jun 24, 2011 at 02:10:30PM +0100, P?draig Brady wrote:
> On 24/06/11 12:44, Mel Gorman wrote:
> > On Thu, Jun 23, 2011 at 08:25:40PM +0100, P?draig Brady wrote:
> >> On 23/06/11 17:59, Mel Gorman wrote:
> >>> On Thu, Jun 23, 2011 at 04:32:27PM +0100, P?draig Brady wrote:
> >>>> On 23/06/11 16:24, Mel Gorman wrote:
> >>>>>
> >>>>> Theory 2 it is then. This is to be applied on top of the patch for
> >>>>> theory 1.
> >>>>>
> >>>>> ==== CUT HERE ====
> >>>>> mm: vmscan: Prevent kswapd doing excessive work when classzone is unreclaimable
> >>>>
> >>>> No joy :(
> >>>>
> >>>
> >>> Joy is indeed rapidly fleeing the vicinity.
> >>>
> >>> Check /proc/sys/vm/laptop_mode . If it's set, unset it and try again.
> >>
> >> It was not set
> >>
> >>>
> >>> diff --git a/mm/vmscan.c b/mm/vmscan.c
> >>> index dce95dd..c8c0f5a 100644
> >>> --- a/mm/vmscan.c
> >>> +++ b/mm/vmscan.c
> >>> @@ -2426,19 +2426,19 @@ loop_again:
> >>> * zone has way too many pages free already.
> >>> */
> >>> if (!zone_watermark_ok_safe(zone, order,
> >>> - 8*high_wmark_pages(zone), end_zone, 0))
> >>
> >> Note 8 was not in my tree.
> >> Manually applied patch makes no difference :(
> >> Well maybe kswapd0 started spinning a little later.
> >>
> >
> > Gack :)
> >
> > On further reflection "mm: vmscan: Prevent kswapd doing excessive
> > work when classzone is unreclaimable" was off but it was along the
> > right lines in that the balancing classzone was not being considered
> > when going to sleep.
> >
> > The following is a patch against mainline 2.6.38.8 and is a
> > roll-up of four separate patches that includes a new modification to
> > sleeping_prematurely. Because the stack I am working off has changed
> > significantly, it's far easier if you apply this on top of a vanilla
> > fedora branch of 2.6.38 and test rather than trying to backout and
> > reapply. Depending on when you checked out or if you have applied the
> > BALANCE_GAP patch yourself, it might collide with 8*high_wmark_pages
> > but the resolution should be straight-forward.
> >
> > Thanks for persisting.
>
> Bingo!
Sweet. Thanks for sticking with it. A rebase on top of 3.0-rc4 is in
the works. I'll ask for it to be merged for 2.6.38-stable where I'll
hopefully meet the window so that it gets picked up by Fedora.
--
Mel Gorman
SUSE Labs
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^ permalink raw reply [flat|nested] 21+ messages in thread
end of thread, other threads:[~2011-06-24 15:04 UTC | newest]
Thread overview: 21+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-06-21 9:53 sandy bridge kswapd0 livelock with pagecache Pádraig Brady
2011-06-21 10:39 ` Mel Gorman
2011-06-21 10:47 ` Pádraig Brady
2011-06-21 11:34 ` Mel Gorman
2011-06-21 11:59 ` Pádraig Brady
2011-06-21 13:07 ` Mel Gorman
2011-06-21 14:23 ` Pádraig Brady
2011-06-22 9:44 ` Mel Gorman
2011-06-22 10:19 ` Pádraig Brady
2011-06-23 11:46 ` Mel Gorman
2011-06-23 13:04 ` Pádraig Brady
2011-06-23 15:24 ` Mel Gorman
2011-06-23 15:32 ` Pádraig Brady
2011-06-23 16:59 ` Mel Gorman
2011-06-23 19:25 ` Pádraig Brady
2011-06-24 11:44 ` Mel Gorman
2011-06-24 13:10 ` Pádraig Brady
2011-06-24 15:04 ` Mel Gorman
2011-06-24 6:33 ` Shaohua Li
2011-06-21 14:34 ` Mel Gorman
2011-06-21 15:29 ` Pádraig Brady
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