2005-09-18 00:19:14

by Maurice Volaski

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

> > 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, [email protected]
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University

2005-09-18 07:34:41

by Andrew Walrond

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

On Sunday 18 September 2005 01:20, Maurice Volaski wrote:
>
> 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)

x86_64 ? If so see http://bugzilla.kernel.org/show_bug.cgi?id=4851

Andrew

2005-09-18 08:49:37

by bert hubert

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

On Sat, Sep 17, 2005 at 08:20:40PM -0400, Maurice Volaski wrote:

> >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)

And now try with a regular gcc. In the meantime I haven't seen this problem
reported by any else, you are the second gentoo user to report it.

Good luck!

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