[+cc Marcin Slusarz, dri-devel]

On Tue, 2013-02-19 at 00:21 +0000, Christoph Lameter wrote:

The problem is that the subsystem attempted to call kfree with a pointer that was not obtained via a slab allocation.

On Sat, 16 Feb 2013, Denys Fedoryshchenko wrote:

...

Hi

Worked for a while on 3.8.0-rc7, generally it is fine, then suddenly laptop stopped responding to keyboard and mouse. Sure it can be memory corruption by some other module, but maybe not. Worth to report i guess. After reboot checked logs and found this:

Feb 16 00:40:17 localhost kernel: [23260.079253] ------------[ cut here ]------------ Feb 16 00:40:17 localhost kernel: [23260.079257] kernel BUG at mm/slub.c:3409! Feb 16 00:40:17 localhost kernel: [23260.079259] invalid opcode: 0000 [#1] SMP Feb 16 00:40:17 localhost kernel: [23260.079262] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle iptable_filter ip_tables tun bridge stp llc nouveau snd_hda_codec_hdmi coretemp kvm_intel

Was there an allocation failure earlier in the log?

Might be this nouveau bug (linux-next at the time was 3.8 now): https://bugs.freedesktop.org/show_bug.cgi?id=58087

I think this was fixed but neither bug report has a cross reference :(

The original report is here: https://bugzilla.kernel.org/show_bug.cgi?id=51291

Pekka, Can you please re-assign the bugzilla #51291 above to DRI? Thanks.

Regards, Peter Hurley