* 2.6.34-rc1: kernel BUG at mm/slab.c:2989! @ 2010-03-10 8:29 Américo Wang 2010-03-10 10:20 ` Pekka Enberg 0 siblings, 1 reply; 7+ messages in thread From: Américo Wang @ 2010-03-10 8:29 UTC (permalink / raw) To: Pekka Enberg, Christoph Lameter; +Cc: linux-mm, LKML Hello, mm experts, I triggered an mm bug today, the full backtrace is here: http://pastebin.ca/1831436 I am using yesterday's Linus tree. It's not easy to reproduce this, I got this very randomly. Some related config's are: CONFIG_SLAB=y CONFIG_SLABINFO=y # CONFIG_DEBUG_SLAB is not set Please let me know if you need more info. Thanks. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: 2.6.34-rc1: kernel BUG at mm/slab.c:2989! 2010-03-10 8:29 2.6.34-rc1: kernel BUG at mm/slab.c:2989! Américo Wang @ 2010-03-10 10:20 ` Pekka Enberg 2010-03-10 14:33 ` Christoph Lameter 0 siblings, 1 reply; 7+ messages in thread From: Pekka Enberg @ 2010-03-10 10:20 UTC (permalink / raw) To: Américo Wang Cc: Christoph Lameter, linux-mm, LKML, viro, mingo, akpm, roland, peterz Américo Wang kirjoitti: > Hello, mm experts, > > I triggered an mm bug today, the full backtrace is here: > > http://pastebin.ca/1831436 > > I am using yesterday's Linus tree. > > It's not easy to reproduce this, I got this very randomly. > > Some related config's are: > > CONFIG_SLAB=y > CONFIG_SLABINFO=y > # CONFIG_DEBUG_SLAB is not set > > Please let me know if you need more info. Looks like regular SLAB corruption bug to me. Can you trigget it with SLUB? Anyway, it seems very unlikely that it's caused by the SLAB changes in -rc1 so I'm CC'ing scheduler and fs folks in case the oops rings a bell. Pekka ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: 2.6.34-rc1: kernel BUG at mm/slab.c:2989! 2010-03-10 10:20 ` Pekka Enberg @ 2010-03-10 14:33 ` Christoph Lameter 2010-03-11 2:42 ` Américo Wang 0 siblings, 1 reply; 7+ messages in thread From: Christoph Lameter @ 2010-03-10 14:33 UTC (permalink / raw) To: Américo Wang Cc: Pekka Enberg, linux-mm, LKML, viro, Ingo Molnar, akpm, roland, peterz On Wed, 10 Mar 2010, Pekka Enberg wrote: > > Please let me know if you need more info. > > Looks like regular SLAB corruption bug to me. Can you trigget it with SLUB? Run SLUB with CONFIG_SLUB_DEBUG_ON or specify slub_debug on the kernel command line to have all allocations checked. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: 2.6.34-rc1: kernel BUG at mm/slab.c:2989! 2010-03-10 14:33 ` Christoph Lameter @ 2010-03-11 2:42 ` Américo Wang 2010-03-11 9:57 ` Américo Wang 0 siblings, 1 reply; 7+ messages in thread From: Américo Wang @ 2010-03-11 2:42 UTC (permalink / raw) To: Christoph Lameter Cc: Pekka Enberg, linux-mm, LKML, viro, Ingo Molnar, akpm, roland, peterz On Wed, Mar 10, 2010 at 10:33 PM, Christoph Lameter <cl@linux-foundation.org> wrote: > On Wed, 10 Mar 2010, Pekka Enberg wrote: > >> > Please let me know if you need more info. >> >> Looks like regular SLAB corruption bug to me. Can you trigget it with SLUB? > > Run SLUB with CONFIG_SLUB_DEBUG_ON or specify slub_debug on the kernel > command line to have all allocations checked. > > Ok, I will try it today. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: 2.6.34-rc1: kernel BUG at mm/slab.c:2989! 2010-03-11 2:42 ` Américo Wang @ 2010-03-11 9:57 ` Américo Wang 2010-03-11 10:49 ` Pekka Enberg 0 siblings, 1 reply; 7+ messages in thread From: Américo Wang @ 2010-03-11 9:57 UTC (permalink / raw) To: Christoph Lameter Cc: Pekka Enberg, linux-mm, LKML, viro, Ingo Molnar, akpm, roland, peterz On Thu, Mar 11, 2010 at 10:42 AM, Américo Wang <xiyou.wangcong@gmail.com> wrote: > On Wed, Mar 10, 2010 at 10:33 PM, Christoph Lameter > <cl@linux-foundation.org> wrote: >> On Wed, 10 Mar 2010, Pekka Enberg wrote: >> >>> > Please let me know if you need more info. >>> >>> Looks like regular SLAB corruption bug to me. Can you trigget it with SLUB? >> >> Run SLUB with CONFIG_SLUB_DEBUG_ON or specify slub_debug on the kernel >> command line to have all allocations checked. >> >> > > Ok, I will try it today. > Sorry, I can't trigger it today, either with SLAB or SLUB. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: 2.6.34-rc1: kernel BUG at mm/slab.c:2989! 2010-03-11 9:57 ` Américo Wang @ 2010-03-11 10:49 ` Pekka Enberg 2010-03-11 16:19 ` Américo Wang 0 siblings, 1 reply; 7+ messages in thread From: Pekka Enberg @ 2010-03-11 10:49 UTC (permalink / raw) To: Américo Wang Cc: Christoph Lameter, linux-mm, LKML, viro, Ingo Molnar, akpm, roland, peterz Américo Wang kirjoitti: > On Thu, Mar 11, 2010 at 10:42 AM, Américo Wang <xiyou.wangcong@gmail.com> wrote: >> On Wed, Mar 10, 2010 at 10:33 PM, Christoph Lameter >> <cl@linux-foundation.org> wrote: >>> On Wed, 10 Mar 2010, Pekka Enberg wrote: >>> >>>>> Please let me know if you need more info. >>>> Looks like regular SLAB corruption bug to me. Can you trigget it with SLUB? >>> Run SLUB with CONFIG_SLUB_DEBUG_ON or specify slub_debug on the kernel >>> command line to have all allocations checked. >>> >>> >> Ok, I will try it today. > > Sorry, I can't trigger it today, either with SLAB or SLUB. Is it the exact same version or is it a new git snapshot? ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: 2.6.34-rc1: kernel BUG at mm/slab.c:2989! 2010-03-11 10:49 ` Pekka Enberg @ 2010-03-11 16:19 ` Américo Wang 0 siblings, 0 replies; 7+ messages in thread From: Américo Wang @ 2010-03-11 16:19 UTC (permalink / raw) To: Pekka Enberg Cc: Américo Wang, Christoph Lameter, linux-mm, LKML, viro, Ingo Molnar, akpm, roland, peterz On Thu, Mar 11, 2010 at 12:49:36PM +0200, Pekka Enberg wrote: > Américo Wang kirjoitti: >> On Thu, Mar 11, 2010 at 10:42 AM, Américo Wang <xiyou.wangcong@gmail.com> wrote: >>> On Wed, Mar 10, 2010 at 10:33 PM, Christoph Lameter >>> <cl@linux-foundation.org> wrote: >>>> On Wed, 10 Mar 2010, Pekka Enberg wrote: >>>> >>>>>> Please let me know if you need more info. >>>>> Looks like regular SLAB corruption bug to me. Can you trigget it with SLUB? >>>> Run SLUB with CONFIG_SLUB_DEBUG_ON or specify slub_debug on the kernel >>>> command line to have all allocations checked. >>>> >>>> >>> Ok, I will try it today. >> >> Sorry, I can't trigger it today, either with SLAB or SLUB. > > Is it the exact same version or is it a new git snapshot? No, I did a git pull, but it looks like only some btrfs updates... ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2010-03-11 16:15 UTC | newest] Thread overview: 7+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2010-03-10 8:29 2.6.34-rc1: kernel BUG at mm/slab.c:2989! Américo Wang 2010-03-10 10:20 ` Pekka Enberg 2010-03-10 14:33 ` Christoph Lameter 2010-03-11 2:42 ` Américo Wang 2010-03-11 9:57 ` Américo Wang 2010-03-11 10:49 ` Pekka Enberg 2010-03-11 16:19 ` Américo Wang
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