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SubjectRe: Linux v2.6.17-rc5
On Fri, 26 May 2006 10:39:25 +1000
Neil Brown <neilb@suse.de> wrote:

| On Thursday May 25, torvalds@osdl.org wrote:
| >
| >
| > 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
|
| Yes. Keith Owens hit this earlier and I have this patch in my
| queue. It has been confirmed to fix the problem.

It really does, thanks a lot.

--
Luiz Fernando N. Capitulino
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