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Date: Tue, 15 Jan 2008 08:31:48 +0800 From: "Dave Young" <hidave.darkstar@...il.com> To: "Johannes Berg" <johannes@...solutions.net> Cc: "Peter Zijlstra" <peterz@...radead.org>, "Linus Torvalds" <torvalds@...ux-foundation.org>, "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>, "Ingo Molnar" <mingo@...e.hu> Subject: Re: 2.6.24-rc7 lockdep warning when poweroff On Jan 14, 2008 6:51 PM, Johannes Berg <johannes@...solutions.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 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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