* khugepaged cannot be freezed on 3.2-rc1
@ 2011-11-13 14:42 Maciej Marcin Piechotka
2011-11-14 5:40 ` Srivatsa S. Bhat
0 siblings, 1 reply; 3+ messages in thread
From: Maciej Marcin Piechotka @ 2011-11-13 14:42 UTC (permalink / raw)
To: linux-mm
I am sorry if I've sent to wrong address. It seems that bug reporting
resources - bugzilla & "Reporting bugs for the Linux kernel" page - are
(still?) down. I followed the latter from web archive).
When I try to suspend the computer the khugepaged refuses to be
suspended:
[10531.788922] PM: Syncing filesystems ... done.
[10532.617226] Freezing user space processes ... (elapsed 0.01 seconds)
done.
[10532.629073] Freezing remaining freezable tasks ...
[10552.638137] Freezing of tasks failed after 20.00 seconds (1 tasks
refusing to freeze, wq_busy=0):
[10552.638155] khugepaged R running task 0 21 2
0x00800000
[10552.638159] ffffea000072c740 000000000000ce01 ffffffff81093f56
ffffffff8166f680
[10552.638163] ffffffff8102bbd0 0000000000000001 ffffffff8102bc65
ffffea000072c140
[10552.638166] ffffea000072c1c0 ffffea000072c180 ffffffff8108cbc1
ffffea000032b700
[10552.638170] Call Trace:
[10552.638177] [<ffffffff81093f56>] ? vma_prio_tree_next+0x3c/0xd5
[10552.638181] [<ffffffff810a2798>] ? try_to_unmap_file+0x4a7/0x4bd
[10552.638184] [<ffffffff8108cbc1>] ? ____pagevec_lru_add_fn+0x58/0x9a
[10552.638188] [<ffffffff810ad11d>] ? compaction_alloc+0x132/0x24f
[10552.638191] [<ffffffff810b26f8>] ? migrate_pages+0xa6/0x335
[10552.638194] [<ffffffff810acfeb>] ? pfn_valid.part.3+0x32/0x32
[10552.638197] [<ffffffff810ad6b2>] ? compact_zone+0x3f4/0x5c3
[10552.638200] [<ffffffff810ad9a2>] ? try_to_compact_pages+0x121/0x17e
[10552.638203] [<ffffffff8108a2f1>] ? __alloc_pages_direct_compact
+0xaa/0x197
[10552.638206] [<ffffffff8108aa44>] ? __alloc_pages_nodemask
+0x666/0x6c7
[10552.638210] [<ffffffff8102bbd0>] ? get_parent_ip+0x9/0x1b
[10552.638214] [<ffffffff81348964>] ? _raw_spin_lock_irqsave+0x13/0x34
[10552.638217] [<ffffffff810b2e12>] ? khugepaged_alloc_hugepage
+0x4c/0xdb
[10552.638220] [<ffffffff81047ab9>] ? add_wait_queue+0x3c/0x3c
[10552.638222] [<ffffffff810b33fd>] ? khugepaged+0x7c/0xe04
[10552.638225] [<ffffffff81047ab9>] ? add_wait_queue+0x3c/0x3c
[10552.638228] [<ffffffff810b3381>] ? add_mm_counter.constprop.50
+0x9/0x9
[10552.638230] [<ffffffff810474ee>] ? kthread+0x76/0x7e
[10552.638233] [<ffffffff8134b274>] ? kernel_thread_helper+0x4/0x10
[10552.638236] [<ffffffff81047478>] ? kthread_worker_fn+0x139/0x139
[10552.638238] [<ffffffff8134b270>] ? gs_change+0xb/0xb
[10552.638347]
[10552.638348] Restarting tasks ... done.
Regards
--
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: khugepaged cannot be freezed on 3.2-rc1
2011-11-13 14:42 khugepaged cannot be freezed on 3.2-rc1 Maciej Marcin Piechotka
@ 2011-11-14 5:40 ` Srivatsa S. Bhat
2011-11-15 13:35 ` Maciej Marcin Piechotka
0 siblings, 1 reply; 3+ messages in thread
From: Srivatsa S. Bhat @ 2011-11-14 5:40 UTC (permalink / raw)
To: Maciej Marcin Piechotka
Cc: linux-mm, Linux PM mailing list, Andrea Arcangeli, Tejun Heo,
Rafael J. Wysocki
On 11/13/2011 08:12 PM, Maciej Marcin Piechotka wrote:
> I am sorry if I've sent to wrong address. It seems that bug reporting
> resources - bugzilla & "Reporting bugs for the Linux kernel" page - are
> (still?) down. I followed the latter from web archive).
>
Adding linux-pm mailing list to CC.
Andrea Arcangeli has written a patch to solve khugepaged freezing issue.
https://lkml.org/lkml/2011/11/9/312
Can you check if that patch solves the issue for you too?
Thanks,
Srivatsa S. Bhat
> When I try to suspend the computer the khugepaged refuses to be
> suspended:
>
> [10531.788922] PM: Syncing filesystems ... done.
> [10532.617226] Freezing user space processes ... (elapsed 0.01 seconds)
> done.
> [10532.629073] Freezing remaining freezable tasks ...
> [10552.638137] Freezing of tasks failed after 20.00 seconds (1 tasks
> refusing to freeze, wq_busy=0):
> [10552.638155] khugepaged R running task 0 21 2
> 0x00800000
> [10552.638159] ffffea000072c740 000000000000ce01 ffffffff81093f56
> ffffffff8166f680
> [10552.638163] ffffffff8102bbd0 0000000000000001 ffffffff8102bc65
> ffffea000072c140
> [10552.638166] ffffea000072c1c0 ffffea000072c180 ffffffff8108cbc1
> ffffea000032b700
> [10552.638170] Call Trace:
> [10552.638177] [<ffffffff81093f56>] ? vma_prio_tree_next+0x3c/0xd5
> [10552.638181] [<ffffffff810a2798>] ? try_to_unmap_file+0x4a7/0x4bd
> [10552.638184] [<ffffffff8108cbc1>] ? ____pagevec_lru_add_fn+0x58/0x9a
> [10552.638188] [<ffffffff810ad11d>] ? compaction_alloc+0x132/0x24f
> [10552.638191] [<ffffffff810b26f8>] ? migrate_pages+0xa6/0x335
> [10552.638194] [<ffffffff810acfeb>] ? pfn_valid.part.3+0x32/0x32
> [10552.638197] [<ffffffff810ad6b2>] ? compact_zone+0x3f4/0x5c3
> [10552.638200] [<ffffffff810ad9a2>] ? try_to_compact_pages+0x121/0x17e
> [10552.638203] [<ffffffff8108a2f1>] ? __alloc_pages_direct_compact
> +0xaa/0x197
> [10552.638206] [<ffffffff8108aa44>] ? __alloc_pages_nodemask
> +0x666/0x6c7
> [10552.638210] [<ffffffff8102bbd0>] ? get_parent_ip+0x9/0x1b
> [10552.638214] [<ffffffff81348964>] ? _raw_spin_lock_irqsave+0x13/0x34
> [10552.638217] [<ffffffff810b2e12>] ? khugepaged_alloc_hugepage
> +0x4c/0xdb
> [10552.638220] [<ffffffff81047ab9>] ? add_wait_queue+0x3c/0x3c
> [10552.638222] [<ffffffff810b33fd>] ? khugepaged+0x7c/0xe04
> [10552.638225] [<ffffffff81047ab9>] ? add_wait_queue+0x3c/0x3c
> [10552.638228] [<ffffffff810b3381>] ? add_mm_counter.constprop.50
> +0x9/0x9
> [10552.638230] [<ffffffff810474ee>] ? kthread+0x76/0x7e
> [10552.638233] [<ffffffff8134b274>] ? kernel_thread_helper+0x4/0x10
> [10552.638236] [<ffffffff81047478>] ? kthread_worker_fn+0x139/0x139
> [10552.638238] [<ffffffff8134b270>] ? gs_change+0xb/0xb
> [10552.638347]
> [10552.638348] Restarting tasks ... done.
>
> Regards
>
--
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: khugepaged cannot be freezed on 3.2-rc1
2011-11-14 5:40 ` Srivatsa S. Bhat
@ 2011-11-15 13:35 ` Maciej Marcin Piechotka
0 siblings, 0 replies; 3+ messages in thread
From: Maciej Marcin Piechotka @ 2011-11-15 13:35 UTC (permalink / raw)
To: Srivatsa S. Bhat
Cc: linux-mm, Linux PM mailing list, Andrea Arcangeli, Tejun Heo,
Rafael J. Wysocki
On Mon, 2011-11-14 at 11:10 +0530, Srivatsa S. Bhat wrote:
> On 11/13/2011 08:12 PM, Maciej Marcin Piechotka wrote:
> > I am sorry if I've sent to wrong address. It seems that bug reporting
> > resources - bugzilla & "Reporting bugs for the Linux kernel" page - are
> > (still?) down. I followed the latter from web archive).
> >
>
> Adding linux-pm mailing list to CC.
> Andrea Arcangeli has written a patch to solve khugepaged freezing issue.
> https://lkml.org/lkml/2011/11/9/312
>
> Can you check if that patch solves the issue for you too?
>
> Thanks,
> Srivatsa S. Bhat
Yes, it solves the problem (sorry for delay in responding).
Regards
--
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] 3+ messages in thread
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2011-11-13 14:42 khugepaged cannot be freezed on 3.2-rc1 Maciej Marcin Piechotka
2011-11-14 5:40 ` Srivatsa S. Bhat
2011-11-15 13:35 ` Maciej Marcin Piechotka
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