Messages in this thread | | | Date | Thu, 14 Jul 2011 13:33:36 -0700 | From | "Paul E. McKenney" <> | Subject | Re: INFO: possible circular locking dependency detected |
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On Thu, Jul 14, 2011 at 03:38:28PM -0400, Dave Jones wrote: > On Thu, Jul 14, 2011 at 12:34:12PM -0700, Paul E. McKenney wrote: > > > Thank you -- you were indeed running with CONFIG_PREEMPT and > > CONFIG_RCU_BOOST, which would be the case for the bug that Steven Rostedt > > found. On reproducing, yes, it could be a bit tough, as the race window > > is rather narrow. I could probably add delays to force the situation htat > > Steven found, but it would be hard to prove that this is your situation. > > > > Dave, was your lockdep splat also with CONFIG_PREEMPT and > > CONFIG_RCU_BOOST? > > yeah. which might explain why I haven't seen it since. (I usually have it > disabled, but turn it on occasionally for a 'lets see what breaks' test)
OK, thanks for the info. For the time being, I will assume that you were seeing this same bug.
Thanx, Paul
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