Date: Fri, 9 Jul 2004 22:52:46 -0400 From: Brian Fundakowski Feldman <green@freebsd.org> To: Igor Sysoev <is@rambler-co.ru> Cc: freebsd-hackers@freebsd.org Subject: Re: panic caused by EVFILT_SIGNAL detaching in rfork()ed thread Message-ID: <20040710025246.GD1626@green.homeunix.org> In-Reply-To: <20040705140331.K723@is.park.rambler.ru> References: <20040705140331.K723@is.park.rambler.ru>
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On Mon, Jul 05, 2004 at 02:06:42PM +0400, Igor Sysoev wrote: > While development of my http server nginx I've got panics caused by detaching > of the EVFILT_SIGNAL event. The worker process starts two worker threads > created by rfork(RFPROC|RFTHREAD|RFMEM). Each thread opens kqueue and > adds the EVFILT_SIGNAL event. If the main thread of the worker process > exits abnormally (on 4.x) or simply exits (on 5.x) then kernel may panic: Someone more up on -stable should investigate fixing all of these that can be found there. For -CURRENT, jmg is supposed to be fixing it at some point. I've been running something like this one for some time on -CURRENT with zero problems (may be a bit stale, especially if not removing the VM parts): <http://green.homeunix.org/~green/kqueue%2bvm.patch>; -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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