From: Christoph Lameter <cl@linux.com>
To: Gavin Guo <tuffkidtt@gmail.com>
Cc: linux-mm@kvack.org, penberg@kernel.org, mpm@selenic.com
Subject: Re: [Question] Crash of kmem_cache_cpu->freelist access
Date: Mon, 15 Dec 2014 08:14:04 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.11.1412150812580.20101@gentwo.org> (raw)
In-Reply-To: <CAAh6nknX5=8ucX_ObxB+_Dy9NCmTgNH1QRhQFKxJ+pgbDsRRaw@mail.gmail.com>
On Sun, 14 Dec 2014, Gavin Guo wrote:
> I tried to disassembly and found that the object is from c->freelist
> and it has an abnormal value which caused the fault. My first thought
> is to try to add slub_debug in the kernel command line. But, the
> kernel is a production kernel and may not have the chance to add
> kernel parameters. The other way is to "echo 1 >
the slub_debug option is there so that production kernels *can* run with
debugging and that we can locate these issues.
If you cannot get to a boot prompt then please change the grub
configuration and add the slub_debug parameter.
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prev parent reply other threads:[~2014-12-15 14:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-13 16:06 Gavin Guo
2014-12-15 14:14 ` Christoph Lameter [this message]
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