Re: Kernel crash in 2.6.0-test9-mm3

Ok I'll take this up with jakub@redhat, the gcc package maintainer at Redhat.

What is interesting (or scary) is that the version of gcc that I'm using (3.3.2-2) is only one rebuild out from the one shipped in Fedora Core 1 (3.3.2-1), so I may not be the last person to hit this problem..

Reuben


At 04:02 p.m. 20/11/2003, David S. Miller wrote:

On Thu, 20 Nov 2003 16:05:27 +1300
Reuben Farrelly [off-list ref] wrote:

quoted

Yes - with the patch backed out, the system has been up for 20 hours
without a crash and nothing has been logged.  I was just holding off a bit
longer before reporting back in case it just needs a bit more time to
trigger ;-)

Thanks a lot for this feedback.

I really think gcc-3.x you're using is miscompiling some parts of
the kernel with the patch applied.  Someone should look at the
x86 output assembler for things like the atomic_dec_and_test() call
in net/core/skbuff.c:kfree_skbmem()