Re: 2.6.23-rc9: Oops in cache_alloc_refill() mm/slab.c

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, 2007-10-05 at 07:54 -0700, Badari Pulavarty wrote:
> On Fri, 2007-10-05 at 15:41 +0200, Valerie Clement wrote:
> > Badari Pulavarty wrote:
> > > On Thu, 2007-10-04 at 18:13 +0200, Valerie Clement wrote:
> > >> While running ffsb tests on my ext4 filesystem, I got an Oops in 
> > >> cache_alloc_refill().
> > >> I turned on SLAB debugging and here is the message I got:
> > >>
> > >> slab: Internal list corruption detected in cache 'buffer_head'(30), 
> > >> slabp ffff81007e100100(1515870810). Hexdump:
> > > 
> > > slabp->inuse = 1515870810 looks bogus. Is this easily reproducible ?
> > 
> > Hi Badari,
> > Thanks for your answer.
> > I didn't reproduce it without the latest ext4 patches. So I suspect a 
> > bug in one of them.
> > But how debugging this?
> > Which other debug traces can I turn on?
> 
> Let me understand. You applied latest ext4 patchsets ? If so, Mingming
> has some slab-cleanup changes in the patchset. You can try backing them
> out and see. 
> 

It's unlikely to be the jbd_slab_cleanup.patch, which actually get rid
of slab allocation for buffers passing down to disk IO, and replace with
get_free_page directly.

Could you send me the profile used for ffsb test?

Thanks,
Mingming

-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux