> Date: Mon, 16 Dec 2002 22:42:07 -0600
> From: Dan Nelson <[EMAIL PROTECTED]>
> To: Aurelien Nephtali <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED]
> Subject: Re: panic: ffs_blkfree: freeing free block
>
> In the last episode (Dec 16), Aurelien Nephtali said:
> > Hi,
> >
> > I got a panic today which occured during a background fsck, after a
> > hard-reboot of the system. The dump from gdb is attached and I can,
> > of course, provide more infos if needed.
>
> "Me too". My info attached as well; almost identical stack trace.
> Kernel was built from sources cvsupped just after 2002/12/15 17:41:07
> PST. (Why in the heck are all the timestamps in commitlogs in PST??)
>
> --
> Dan Nelson
> [EMAIL PROTECTED]
I introduced a bug to snapshots on 11/30/02 which did not get fixed
until 12/15/02 which caused background fsck to (silently) fail to fix
certain filesystem problems. If you ran background fsck on a system
between 11/30 and 12/15 and then ran background fsck again on a system
after that date, the earlier missed corruption causes the panic that
you have seen. Once fixed on a post 12/15 system, it should not recur.
You can avoid the panic by running `fsck -f -p' on all your system
after upgrading to a post 12/15 system. If you find continued
evidence of trouble after following the above procedures, please
send me mail.
Kirk McKusick
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