Messages in this thread | | | Date | Tue, 14 Jul 2015 12:26:24 -0700 | From | "Paul E. McKenney" <> | Subject | Re: mx6: suspicious RCU usage |
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On Tue, Jul 14, 2015 at 01:59:10PM -0300, Fabio Estevam wrote: > On Tue, Jul 14, 2015 at 1:44 PM, Fabio Estevam <festevam@gmail.com> wrote: > > > With your patch applied I am running several suspend/resume cycles and > > I am seeing different problems now from time to time (like 1 out 10 > > times). The kernel dump does not look like the same every time, but > > here is one example: > > Here is another one I just got, and it seems to be more informative: > > http://pastebin.com/T4YxuLCg
This might simply be a symptom of the earlier "Unable to handle kernel paging request at virtual address 708ebbfa". However, the usual cause of the later "rcu_read_lock() used illegally while idle!" is just that. In this case, might the interrupt have occurred without irq_enter() being invoked?
(But there are probably two interleaved stack traces, and I am not certain that I am getting them untangled properly.)
Thanx, Paul
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