Re: kernel BUG at fs/inode.c:250!
2008/2/20, u7l11ey@mail.lrz-muenchen.de <u7l11ey@mail.lrz-muenchen.de>:
> Hi Debian community,
>
> I have a Linksys NSLU2 running the latest Debian distribution (just
> updated 2 days ago): Linux version 2.6.18-6-ixp4xx (Debian
> 2.6.18.dfsg.1-18etch1).
>
> For a couple of days, the box hangs at least once a day, requiring a hard
> reset by pulling the power chord. The kern.log file shows the following:
>
> Feb 19 21:50:35 slug kernel: kernel BUG at fs/inode.c:250!
> Feb 19 21:50:35 slug kernel: Unable to handle kernel NULL pointer
> dereference at virtual address 00000000
> Feb 19 21:50:35 slug kernel: pgd = c1778000
> Feb 19 21:50:35 slug kernel: [00000000] *pgd=017b0031, *pte=00000000,
> *ppte=00000000
> Feb 19 21:50:35 slug kernel: Internal error: Oops: 817 [#1]
>
> And so on. I can of course provide the complete error report including the
> whole backtrace.
>
> There are also other error messages:
> Feb 20 02:50:30 slug kernel: Bad page state in process 'sh'
> Feb 20 02:50:30 slug kernel: page:c02b1ac0 flags:0x00000000
> mapping:00000040 mapcount:0 count:0
> Feb 20 02:50:30 slug kernel: Trying to fix it up, but a reboot is needed
> Feb 20 02:50:30 slug kernel: Backtrace:
> Feb 20 03:20:03 slug kernel: Bad page state in process 'rrdtool'
> Feb 20 03:20:03 slug kernel: page:c02b1ac0 flags:0x00000000
> mapping:00000040 mapcount:0 count:0
> Feb 20 03:20:03 slug kernel: Trying to fix it up, but a reboot is needed
> Feb 20 03:20:03 slug kernel: Backtrace:
>
> The box is running a cronjob every 10 minutes that processes a file with
> sed, awk and rrdtool. There is no hard drive, just a 2GB USB stick with
> plenty of free space.
>
> I googled for this bug, but couldn't come up with anything helpful.
>
> Any pointers about what I could do to get a stable system?
Perhaps a buggy USB stick? Specially if you are using swap space...
I have no other idea to help you.
--
Marcos
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