Re: Hangs during filesystem recovery on mount (was: kernel panic "killing interrupt handler" and kernel BUG at sched.c:468)

[Eric Sandeen <sandeen@xxxxxxx>]

On Fri, 4 Oct 2002, Federico Sevilla III wrote:

> Hi everyone,
> 
> After another reboot I did an xfs_check on the yet-unrecovered
> /dev/sda10 and I did not get any messages. An attempt to mount it
> succeeded. I unmounted /dev/sda10 and did another xfs_check and again I
> did not get any messages, which from the manual page I've interpreted as
> "clean". Because /dev/sda10 was finally unmounted properly the next
> reboot worked and our server is back online.

Odd.  Just to make sure I read everything right - xfs itself was hanging
in recovery, and your oopses came from when you tried to sync with SysRq?

And then it sounds like the only thing you did before the mount was
ultimately successful, was to run xfs_check... which should be a read-only
test, and should not have changed anything about the fs, as far as I know.

I think the most helpful thing (in retrospect) would have been to
break into kdb, and see where mount was stuck during recovery.

I'm not sure what to make of this problem...

-Eric