Messages in this thread | | | Subject | Re: [PATCH] dio: remove bogus refcounting BUG_ON | From | Badari Pulavarty <> | Date | Thu, 05 Jul 2007 10:16:59 -0700 |
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On Thu, 2007-07-05 at 10:11 -0700, Zach Brown wrote: > > the BUG_ON(). But unfortunately, our perf. team is able reproduce the > > problem. > > What are they doing to reproduce it? How much setup does it take?
Huge OLTP run :(
> > > Debug indicated that, the ret2 == 1 :( > > That could be consistent with the theory that we're racing with the > dio struct being freed and reused before it's tested in the BUG_ON() > condition. Suparna's suggestion to sample dio->is_async before > releasing the refcount and using that in the BUG_ON condition is a > good one.
I will ask them to try that.
Thanks, Badari
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