On Thu, 25 May 2006, Luiz Fernando N. Capitulino wrote:
>
> I'm getting this after running 'halt':
>
> Halting system...
> md: stopping all md devices.
> md: md0 switched to read-only mode.
> Shutdown: hda
> System halted.
> BUG: halt/3367, lock held at task exit time!
> [dfe70494] {mddev_find}
> .. held by: halt: 3367 [decf4a90, 118]
> ... acquired at: md_notify_reboot+0x31/0x7f
Sounds like this is due to df5b89b323b922f56650b4b4d7c41899b937cf19, aka
"md: Convert reconfig_sem to reconfig_mutex" by NeilBrown.
Neil? It may well be (and likely is) an old thing, just exposed by the
lock debugging of the new mutexes.
Was it _meant_ to take the lock and hold it? Looks like it might be the
ITERATE_MDDEV(mddev,tmp)
if (mddev_trylock(mddev))
do_md_stop (mddev, 1);
(maybe it should release the lock after the md_stop?)
Linus
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