* [JFFS2] Running fsstress causes panic
@ 2008-05-16 11:11 rohit h
2008-05-16 12:03 ` Adrian Hunter
0 siblings, 1 reply; 3+ messages in thread
From: rohit h @ 2008-05-16 11:11 UTC (permalink / raw)
To: linux-mtd
Hello all,
I am running a filesystem testing utility 'fsstress' on JFFS2 running
over a 80MB OneNAND partition.
The fsstress command line used is 'fsstress -p 3 -n 1000000 -d /tmp -l 0 &'
This creates 3 processes with each process executing 1000000 operations.
The testing board has 64MB of RAM.
After around 5 hours, I get panic message pasted below.
I have done the same test with the command line 'fsstress -p3 -n
10000 -d /tmp -l 0 &'
This test goes through for 5 days without failing, after which I
ended the test.
Can somebody throw some light as to why this is happening.
Thanks a lot
Rohit
fsstress invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0
[<c0026b98>] <4>init invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0
[<c0026b98>] (dump_stack+0x0/0x14) from [<c006b31c>] (out_of_memory+0x7c/0x224)
[<c006b2a0>] (out_of_memory+0x0/0x224) from [<c006c944>]
(__alloc_pages+0x24c/0x2d8)
r8:c0566820 r7:c0285f80 r6:000201d2 r5:00000000 r4:00000000
[<c006c6f8>] (__alloc_pages+0x0/0x2d8) from [<c00687a0>]
(page_cache_read+0x44/0xb4)
[<c006875c>] (page_cache_read+0x0/0xb4) from [<c0068a48>]
(filemap_nopage+0x238/0x3bc)
r8:000000cc r7:00000000 r6:00127edc r5:c056a000 r4:00000000
[<c0068810>] (filemap_nopage+0x0/0x3bc) from [<c00765cc>]
(__handle_mm_fault+0x17c/0xb24)
[<c0076450>] (__handle_mm_fault+0x0/0xb24) from [<c002836c>]
(do_page_fault+0xe8/0x218)
[<c0028284>] (do_page_fault+0x0/0x218) from [<c00284bc>]
(do_translation_fault+0x20/0x7c)
[<c002849c>] (do_translation_fault+0x0/0x7c) from [<c002227c>]
(do_PrefetchAbort+0x18/0x1c)
r5:000169c0 r4:ffffffff
[<c0022264>] (do_PrefetchAbort+0x0/0x1c) from [<c0022e40>]
(ret_from_exception+0x0/0x10)
Exception stack(0xc056bfb0 to 0xc056bff8)
bfa0: 00000003 0000e118 beafa8c8 00000000
bfc0: beafa8c8 000169c0 10000000 beafaba8 beafabac 0000a1a0 000167ec 000167d8
bfe0: 000166e0 beafa8bc 0000c440 400ec344 60000010 ffffffff
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [JFFS2] Running fsstress causes panic
2008-05-16 11:11 [JFFS2] Running fsstress causes panic rohit h
@ 2008-05-16 12:03 ` Adrian Hunter
2008-05-19 5:44 ` rohit h
0 siblings, 1 reply; 3+ messages in thread
From: Adrian Hunter @ 2008-05-16 12:03 UTC (permalink / raw)
To: rohit h; +Cc: linux-mtd
rohit h wrote:
> Hello all,
> I am running a filesystem testing utility 'fsstress' on JFFS2 running
> over a 80MB OneNAND partition.
> The fsstress command line used is 'fsstress -p 3 -n 1000000 -d /tmp -l 0 &'
> This creates 3 processes with each process executing 1000000 operations.
> The testing board has 64MB of RAM.
> After around 5 hours, I get panic message pasted below.
> I have done the same test with the command line 'fsstress -p3 -n
> 10000 -d /tmp -l 0 &'
> This test goes through for 5 days without failing, after which I
> ended the test.
> Can somebody throw some light as to why this is happening.
> Thanks a lot
> Rohit
>
>
> fsstress invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0
> [<c0026b98>] <4>init invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0
> [<c0026b98>] (dump_stack+0x0/0x14) from [<c006b31c>] (out_of_memory+0x7c/0x224)
> [<c006b2a0>] (out_of_memory+0x0/0x224) from [<c006c944>]
> (__alloc_pages+0x24c/0x2d8)
> r8:c0566820 r7:c0285f80 r6:000201d2 r5:00000000 r4:00000000
> [<c006c6f8>] (__alloc_pages+0x0/0x2d8) from [<c00687a0>]
> (page_cache_read+0x44/0xb4)
> [<c006875c>] (page_cache_read+0x0/0xb4) from [<c0068a48>]
> (filemap_nopage+0x238/0x3bc)
> r8:000000cc r7:00000000 r6:00127edc r5:c056a000 r4:00000000
> [<c0068810>] (filemap_nopage+0x0/0x3bc) from [<c00765cc>]
> (__handle_mm_fault+0x17c/0xb24)
> [<c0076450>] (__handle_mm_fault+0x0/0xb24) from [<c002836c>]
> (do_page_fault+0xe8/0x218)
> [<c0028284>] (do_page_fault+0x0/0x218) from [<c00284bc>]
> (do_translation_fault+0x20/0x7c)
> [<c002849c>] (do_translation_fault+0x0/0x7c) from [<c002227c>]
> (do_PrefetchAbort+0x18/0x1c)
> r5:000169c0 r4:ffffffff
> [<c0022264>] (do_PrefetchAbort+0x0/0x1c) from [<c0022e40>]
> (ret_from_exception+0x0/0x10)
> Exception stack(0xc056bfb0 to 0xc056bff8)
> bfa0: 00000003 0000e118 beafa8c8 00000000
> bfc0: beafa8c8 000169c0 10000000 beafaba8 beafabac 0000a1a0 000167ec 000167d8
> bfe0: 000166e0 beafa8bc 0000c440 400ec344 60000010 ffffffff
Are you using tmpfs? It uses virtual memory. Maybe it is sized too big, or
maybe /tmp has too much in it to start with.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [JFFS2] Running fsstress causes panic
2008-05-16 12:03 ` Adrian Hunter
@ 2008-05-19 5:44 ` rohit h
0 siblings, 0 replies; 3+ messages in thread
From: rohit h @ 2008-05-19 5:44 UTC (permalink / raw)
To: Adrian Hunter; +Cc: linux-mtd
On Fri, May 16, 2008 at 5:33 PM, Adrian Hunter
<ext-adrian.hunter@nokia.com> wrote:
> rohit h wrote:
>>
>> Hello all,
>> I am running a filesystem testing utility 'fsstress' on JFFS2 running
>> over a 80MB OneNAND partition.
>> The fsstress command line used is 'fsstress -p 3 -n 1000000 -d /tmp -l 0
>> &'
>> This creates 3 processes with each process executing 1000000 operations.
>> The testing board has 64MB of RAM.
>> After around 5 hours, I get panic message pasted below.
>> I have done the same test with the command line 'fsstress -p3 -n
>> 10000 -d /tmp -l 0 &'
>> This test goes through for 5 days without failing, after which I
>> ended the test.
>> Can somebody throw some light as to why this is happening.
>> Thanks a lot
>> Rohit
>>
>>
>> fsstress invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0
>> [<c0026b98>] <4>init invoked oom-killer: gfp_mask=0x201d2, order=0,
>> oomkilladj=0
>> [<c0026b98>] (dump_stack+0x0/0x14) from [<c006b31c>]
>> (out_of_memory+0x7c/0x224)
>> [<c006b2a0>] (out_of_memory+0x0/0x224) from [<c006c944>]
>> (__alloc_pages+0x24c/0x2d8)
>> r8:c0566820 r7:c0285f80 r6:000201d2 r5:00000000 r4:00000000
>> [<c006c6f8>] (__alloc_pages+0x0/0x2d8) from [<c00687a0>]
>> (page_cache_read+0x44/0xb4)
>> [<c006875c>] (page_cache_read+0x0/0xb4) from [<c0068a48>]
>> (filemap_nopage+0x238/0x3bc)
>> r8:000000cc r7:00000000 r6:00127edc r5:c056a000 r4:00000000
>> [<c0068810>] (filemap_nopage+0x0/0x3bc) from [<c00765cc>]
>> (__handle_mm_fault+0x17c/0xb24)
>> [<c0076450>] (__handle_mm_fault+0x0/0xb24) from [<c002836c>]
>> (do_page_fault+0xe8/0x218)
>> [<c0028284>] (do_page_fault+0x0/0x218) from [<c00284bc>]
>> (do_translation_fault+0x20/0x7c)
>> [<c002849c>] (do_translation_fault+0x0/0x7c) from [<c002227c>]
>> (do_PrefetchAbort+0x18/0x1c)
>> r5:000169c0 r4:ffffffff
>> [<c0022264>] (do_PrefetchAbort+0x0/0x1c) from [<c0022e40>]
>> (ret_from_exception+0x0/0x10)
>> Exception stack(0xc056bfb0 to 0xc056bff8)
>> bfa0: 00000003 0000e118 beafa8c8
>> 00000000
>> bfc0: beafa8c8 000169c0 10000000 beafaba8 beafabac 0000a1a0 000167ec
>> 000167d8
>> bfe0: 000166e0 beafa8bc 0000c440 400ec344 60000010 ffffffff
>
> Are you using tmpfs? It uses virtual memory. Maybe it is sized too big, or
> maybe /tmp has too much in it to start with.
>
>
tmpfs is not mounted. Also I erase the partition before mounting JFFS2 on it.
How can I know who is consuming memory which causes oom-killer - is it
fsstress, it is JFFS2?
Could there be a way to find memory usage of JFFS2?
Thanks
Rohit
^ permalink raw reply [flat|nested] 3+ messages in thread
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2008-05-16 11:11 [JFFS2] Running fsstress causes panic rohit h
2008-05-16 12:03 ` Adrian Hunter
2008-05-19 5:44 ` rohit h
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