Date: Thu, 15 Jul 2004 09:07:05 -0400 From: Sven Willenberger <sven@dmv.com> To: freebsd-ports@freebsd.org Subject: Re: 'Unable to read from thread kernel pipe' error in Apache Message-ID: <1089896825.23366.6.camel@lanshark.dmv.com> In-Reply-To: <200407150539.i6F5dCZY004459@toyingwithfate.com> References: <200407150539.i6F5dCZY004459@toyingwithfate.com>
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On Thu, 2004-07-15 at 00:39 -0500, Will McCutcheon wrote: > I have a server running 5.2.1-RELEASE-p8 and just started using Apache > 2.0.50 with PHP 4.3.7-3. I immediately ran into a strange problem I've > never seen before, where when I send mail in IMP (a webmail system I run > on this server) the child Apache process crashes with the following > error: > > Fatal error 'Unable to read from thread kernel pipe' at line 1100 in file > /usr/src/lib/libc_r/uthread/uthread_kern.c (errno = 0) > [Wed Jul 14 22:29:41 2004] [notice] child pid 3686 exit signal Abort trap > (6) > > Anyone have any ideas as to what's causing this? I found that error > message in discussions about gnucash and xscreensaver-demo, but with no > answers. I'm not sure whether the problem lies in Apache or somewhere > else, but because I'm experiencing it in Apache I'm reporting it here on > the ports list. Thanks! > > W Did you compile apache with worker threads? Although I did have success using MPM=worker with libkse, I found that IMP mail crashed apache almost immediately. Turns out that a lot of PHP modules, etc are not thread safe, Sven
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