Re: 2.6.18-rc1: slab BUG_ON(!PageSlab(page)) upon umount afterfailed suspend

From: Mike Galbraith
Date: Mon Jul 10 2006 - 06:43:48 EST


On Mon, 2006-07-10 at 13:33 +0300, Pekka Enberg wrote:
> On 7/10/06, Mike Galbraith <efault@xxxxxx> wrote:
> > Hm. I've never _noticed_ gcc putting anything out there before. This
> > is gcc version 4.1.2 20060531 (prerelease) (SUSE Linux).
>
> [snip]
>
> Curious... GCC cuts line and file information after ud2a. Looking at
> your stack trace, I am wondering who calls free_block() as we don't
> see cache_flusharray() in the trace. Do you have CONFIG_NUMA enabled?

(gdb) list *__cache_free+0x86
0xb1068e39 is in __cache_free (slab.c:3152).
3147 shared_array->avail += batchcount;
3148 goto free_done;
3149 }
3150 }
3151
3152 free_block(cachep, ac->entry, batchcount, node);
3153 free_done:
3154 #if STATS
3155 {
3156 int i = 0;
(gdb)

It got inlined.

-Mike

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