Messages in this thread | | | Subject | Re: Regression in RCU subsystem in latest mainline kernel | From | Benjamin Herrenschmidt <> | Date | Tue, 25 Jun 2013 17:36:25 +1000 |
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On Tue, 2013-06-25 at 17:19 +1000, Michael Ellerman wrote: > Here's another trace from 3.10-rc7 plus a few local patches. > > We suspect that the perf enable could be causing a flood of > interrupts, but why > that's clogging things up so badly who knows.
Additionally, perf being potentially NMIs , we might be hitting a bad case of reentrance in RCU ... hard to tell.
Cheers, Ben.
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