Date: Thu, 12 Jun 2008 17:50:49 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Jeremy Chadwick <koitsu@freebsd.org> Cc: freebsd-apache@freebsd.org, freebsd-stable@freebsd.org Subject: Re: apachectl gracefult causes Signal 11 crash after 6.3 to 7.0 upgrade [SOLVED] Message-ID: <200806121750.50756.doconnor@gsoft.com.au> In-Reply-To: <20080612072812.GA35851@eos.sc1.parodius.com> References: <4846B64F.4090700@minibofh.org> <200806121635.36998.doconnor@gsoft.com.au> <20080612072812.GA35851@eos.sc1.parodius.com>
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--nextPart2691996.7NjXRzuLca Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline [This is a continuation of my last message, I accidentally mashed the=20 send key] On Thu, 12 Jun 2008, Jeremy Chadwick wrote: > > I tried truss and it seemed to be taking a long time (5-10 minutes) > > and generating a lot of seemingly identical logging :( > > Okay, let's backtrack here. > > The OP states that he can induce a segfault of httpd when doing > "apachectl graceful". Is that the exact problem you're seeing, or > are you seeing problems where PHP/Apache segfaults during operation?=20 > I just want to be clear. No, I don't see a problem with 'apachectl graceful' - it doesn't get=20 that far. > If the latter, then truss "generating lots of seemingly identical > logging" is probably expected. I'm guessing it's select() or poll() > or something related to kqueue/kevent, as it'd be waiting for I/O on > the HTTP socket. You'd have to submit the HTTP request to the PHP > script to get it to crash. I get a crash when Apache starts up. I wasn't sure if it was related to OPs problem or not, I should have=20 been clearer though. > In either case, you may have to resort to using ktrace + kdump, which > may or may not help narrow this down. > > Use "ktrace -i -t+ httpd -X" (I hope that'll work; I'm not sure if > ktrace allows you to pass arguments to a command), which will start Yes ktrace does allow that. =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart2691996.7NjXRzuLca Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.8 (FreeBSD) iD8DBQBIUNxi5ZPcIHs/zowRAtlSAJ4nHwYI6ZYWzl3NXF4rL0X1llk4GACaA+64 Box3PMfBf3W/AzeEtpH4SrE= =s07G -----END PGP SIGNATURE----- --nextPart2691996.7NjXRzuLca--
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