Weird deadlock when shutting down
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From: Johannes Berg on 20 Feb 2010 06:00 On Sat, 2010-02-20 at 17:06 +0800, Américo Wang wrote: > >> Does my following untested patch help? > > > > Sorry, no. I'll hook up a screen to the box after I return from the > > fresh market. > Are you sure there is no difference? :-/ No ... could be a different deadlock now :) Not sure how likely that is though. > Also, could you please also apply the 4 patches from Eric? > > You can get them here: > http://lkml.org/lkml/2010/2/11/334 Will do. johannes
From: Johannes Berg on 20 Feb 2010 06:00 On Sat, 2010-02-20 at 17:30 +0800, Américo Wang wrote: > Hey, johannes > > Not sure if you made some mistake here, the one you report here [1] > is _not_ the same with this one reported by Benjamin. > > Please make sure what you are talking about here is the same one. > > Thanks. > > 1. http://lkml.org/lkml/2010/2/18/33 I'm talking about the problem Ben reported -- that one is completely different. Was your patch supposed to address _that_ one? johannes
From: Johannes Berg on 20 Feb 2010 06:30 On Sat, 2010-02-20 at 17:06 +0800, Américo Wang wrote: > On Sat, Feb 20, 2010 at 4:56 PM, Johannes Berg > <johannes(a)sipsolutions.net> wrote: > > On Sat, 2010-02-20 at 15:13 +0800, Américo Wang wrote: > > > >> Does my following untested patch help? > > > > Sorry, no. I'll hook up a screen to the box after I return from the > > fresh market. > > > > Are you sure there is no difference? :-/ It deadlocks after Disabling non-boot CPUs ... Not sure if that counts as a difference... johannes
From: Johannes Berg on 20 Feb 2010 07:10 On Sat, 2010-02-20 at 12:28 +0100, Johannes Berg wrote: > It deadlocks after > > Disabling non-boot CPUs ... I suspect the BUG: key not in data! thing I get now disables lockdep (it seems to be mostly due to module loading btw) and then I don't get any output here. Seems it's all busted. johannes
From: Américo Wang on 20 Feb 2010 08:50
On Sat, Feb 20, 2010 at 12:28:51PM +0100, Johannes Berg wrote: >On Sat, 2010-02-20 at 17:06 +0800, Américo Wang wrote: >> On Sat, Feb 20, 2010 at 4:56 PM, Johannes Berg >> <johannes(a)sipsolutions.net> wrote: >> > On Sat, 2010-02-20 at 15:13 +0800, Américo Wang wrote: >> > >> >> Does my following untested patch help? >> > >> > Sorry, no. I'll hook up a screen to the box after I return from the >> > fresh market. >> > >> >> Are you sure there is no difference? :-/ > >It deadlocks after > >Disabling non-boot CPUs ... > >Not sure if that counts as a difference... > I am not sure neither... That message is displayed before shutting down the devices. To verify, you can add some printk() in the end of __cpufreq_remove_dev(), or enable CONFIG_CPU_FREQ_DEBUG. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |