linux-kernel - Memory corruption warnings triggered by repeated slabinfo -v

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Message-ID: <4EEBFAF3.60609@palosanto.com>
Date:	Fri, 16 Dec 2011 21:14:11 -0500
From:	Alex Villacís Lasso <a_villacis@...osanto.com>
To:	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Memory corruption warnings triggered by repeated slabinfo -v

I am running Fedora 16 x86_64 and testing vanilla kernel 3.2-rc5. I 
wanted to test the slabinfo program, so I wrote a small shell script 
slabinfo-forever.sh (attached) that invokes slabinfo -v every 3 seconds. 
Just by doing this, I was able to trigger several memory validation 
warnings, attached in this message. The reason I wanted to test slabinfo 
is because back when I was running Fedora 14, I had some video issues 
that seemed consistent with memory corruption. I tried to submit a 
kernel bug at https://bugzilla.kernel.org/show_bug.cgi?id=42312 just 
before the kernel.org hack issue, but bugzilla.kernel.org never came up 
after that.

View attachment "dmesg-slabinfo-3.2-rc5.txt" of type "text/plain" (125363 bytes)

Download attachment "slabinfo-forever.sh" of type "application/x-sh" (47 bytes)

View attachment ".config" of type "text/plain" (120737 bytes)