Date: Fri, 11 Jun 2004 10:42:34 -0700 From: Sean McNeil <sean@mcneil.com> To: David Xu <davidxu@freebsd.org> Cc: Daniel Eischen <eischen@vigrid.com> Subject: Re: signal handler priority issue Message-ID: <1086975754.69031.2.camel@server.mcneil.com> In-Reply-To: <40C9C465.5080305@freebsd.org> 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> <40C9C465.5080305@freebsd.org>
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On Fri, 2004-06-11 at 07:40, David Xu wrote: > 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 Xu This patch makes sigsuspend work, but there is still something missing. The actual signal handler is not getting called so I sit in an infinite loop waiting for the signal handler to set something.
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