Re: Segfaults in mkdir under high load. Software or hardware?

From: Maurice Volaski
Date: Sat Sep 17 2005 - 19:20:57 EST


> I am experiencing segfaults in mkdir, and mkdir alone, under high load.

I've seen errors like these happen, and they were kernel bugs.

[ 0.000000] Bootdata ok (command line is root=/dev/sda4 vga=0x31B video=vesafb:mtrr,ywrap)
> [ 0.000000] Linux version 2.6.12-gentoo-r6 (root@omc-2) (gcc version 3.4.3 20041125 (Gentoo 3.4.3-r1, ssp-3.4.3-0, pie-8.7.7)) #6 SMP Mon Jul 25 13:50:58 CEST 2005

If you reproduce with an unpatched kernel and an unpatched compiler, you are
much more likely to get attention. Your problem might also just go away.

I have been seeing a similar thing:

./current:Sep 17 18:00:01 [kernel] mkdir[7696]: segfault at 0000000000000000 rip 000000000040184d rsp 00007fffff826350 error 4

I'm using the plain 2.6.13 (from gentoo vanilla sources), though it was compiled with
gcc version 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)
--

Maurice Volaski, mvolaski@xxxxxxxxxxxx
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/