Messages in this thread | | | Date | Thu, 14 Jul 2011 15:38:28 -0400 | From | Dave Jones <> | Subject | Re: INFO: possible circular locking dependency detected |
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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)
Dave
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