Re: RHEL4 kernel-2.6.9-42.0.2.EL

[Robert Hancock]

Andrew Li wrote:
> Hi guys,
>
> I have a strange problem with cron, it is doing a segfault every minute.
> This problem happened out of the blue, according to authlog no users
> have logged onto the system in between the time it last worked and the
> time it began to fail.
>
> The error messages from messages file is :
> Jul 18 16:16:01 host100 kernel: crond[29540]: segfault at
> 0000000000000000 rip 0000000000000000 rsp 0000007fbffbf018 error 14
>
> Looking at arch/x86_64/mm/fault.c, this happens when a user proc is
> trying to access memory thats not in its memory map. But the address
> reported in messages doesn't match /proc/pid/maps.
>
> Does anyone have any idea what this might be?

Looks like it's jumping to a null address. Presumably a cron bug.

--
Robert Hancock      Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/

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