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Message-Id: <1191596057.6106.106.camel@dyn9047017100.beaverton.ibm.com> Date: Fri, 05 Oct 2007 07:54:17 -0700 From: Badari Pulavarty <pbadari@...il.com> To: Valerie Clement <valerie.clement@...l.net> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, ext4 development <linux-ext4@...r.kernel.org>, cmm@...ibm.com Subject: Re: 2.6.23-rc9: Oops in cache_alloc_refill() mm/slab.c 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. Thanks, Badari - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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