kernel version 3.8.4 crashed while fuzzying with trinity

From: Toralf FÃrster
Date: Sat Mar 23 2013 - 14:44:01 EST

That kernel crashed today at a stable 32 bit Gentoo Linux.
The screen shot (just a photo, b/c nothing was in the syslog) can be downloaded here [1].

The last action before I left the machine for a while was to start a user mode linux
(stale 32 bit Gentoo, kernel v3.9-rc3-324-g5da273) and run trinity within that system.

Please note that the host kernel crashed (UML probably too).

To feed trinity with victim files I NFSv4 mounted a directory located at the host system
under /tmp onto a mount point of the UML system (all file systems are EXT4).
That directory contained 100 files and 100 directory.
The trinity command line I used in the UML was :

$> trinity --children 4 --victims /mnt/nfs/n22/forT -x mremap -x clock_nanosleep

FWIW : mremap gives within an UML guest with kernel 3.9-rcX this [2] using SLAB
and with SLUB this [3];
clock_nanosleep only slows down the tests


Toralf FÃrster
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