Date: Fri, 11 Jun 2004 22:40:37 +0800 From: David Xu <davidxu@freebsd.org> To: Sean McNeil <sean@mcneil.com> Cc: freebsd-amd64@freebsd.org Subject: Re: signal handler priority issue Message-ID: <40C9C465.5080305@freebsd.org> In-Reply-To: <1086946114.76446.16.camel@server.mcneil.com> References: <Pine.GSO.4.10.10406110432370.12394-100000@pcnet5.pcnet.com> <1086944114.76446.5.camel@server.mcneil.com> <1086946114.76446.16.camel@server.mcneil.com>
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Sean McNeil wrote: >Sorry for top-posting, but it may be easier to read this way.... > >The program below has an optimization bug in that done isn't declare >volatile. With that fixed, it works just fine. I've been attempting to >get boehm-gc working and it seems OK with libc_r, but fails with >libpthread. It is essentially doing what the program below does, but >for some reason it gets stuck. Has anyone else been experimenting with >boehm-gc? > >Also, it would really help if I had a debugger that worked with kse >threads. How is that going? Tracking down pthread issues right now has >been difficult with the current debugger. Can anyone throw some patches >my way that may help? > > Please try the patch: http://people.freebsd.org/~davidxu/kse/thr_sigsuspend.c.diff the patch is for file /usr/src/lib/libpthread/thread/thr_sigsuspend.c, I believe I caught a bug in the sigsuspend(), thread should scan pending signals first, only when there is no pending signal in wait set, the thread can sleep. David Xuhome | help
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