Messages in this thread | | | Date | Tue, 15 Jan 2008 08:31:48 +0800 | From | "Dave Young" <> | Subject | Re: 2.6.24-rc7 lockdep warning when poweroff |
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On Jan 14, 2008 6:51 PM, Johannes Berg <johannes@sipsolutions.net> wrote: > > > The warning that triggered (lockdep.c:700) means that one class (key) > > was used with more than one name. > > Right. > > > Looking at cleanup_workqueue_thread(), the lock_acquire() there works on > > wq->lockdep_map, and that is only initialized at one spot: > > __create_workqueue_key(), thus it stands to reason that that was > > mis-used. > > Oh ok, yes, makes sense. Maybe something is generating a workqueue with > a name that's passed in but the key is statically from that place. I'll > try to find it.
I add some debug printk and found the names :
block_osm/exec_osm
in drivers/message/i2o
maybe this helps.
Regards dave
> > johannes >
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