Date: Wed, 29 Sep 2004 21:24:33 +0800 From: David Xu <davidxu@freebsd.org> To: Julian Elischer <julian@elischer.org> Cc: freebsd-threads@freebsd.org Subject: Re: easy to reproduce unkillable threads Message-ID: <415AB791.10809@freebsd.org> In-Reply-To: <41589B4A.9080508@elischer.org> References: <16728.37731.540143.307772@grasshopper.cs.duke.edu> <41589B4A.9080508@elischer.org>
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Julian Elischer wrote: > > hmm looks like the problem is that the condition variable respods to a > masked signal > > > the signals are all masked from the perspective of the thread..the > signal is delivered to the signal > catcher thread so the UTS can handle it but in the meanwhile the > thread has done a RESTART.. > > David: check out what happens when a signal is delivered to a worker > thread that is in a cv_wait_signal() > Please tell me easiest way to reproduce it, I tried best to reproduce it, but still got nothing. >> >>> . >>> >> >> I haven't checked it as yet but I am starting to see some hint of >> some problem.. >> The fact that cv_wait_signal() reacts to a blocked signal surproses >> me.. >> (according to teh man page) >> >> http://people.freebsd.org/~gallatin/threadlock.tgz >> I use this test case.
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