Date: Sun, 30 Sep 2012 13:52:42 -0400 From: Mark Saad <nonesuch@longcount.org> To: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: qmail-remote uses 100% CPU when delivering to certain hosts Message-ID: <D3F5EEBC-3362-4B57-9D97-DE03D86E6D64@longcount.org> In-Reply-To: <50665914.8080301@acm.poly.edu> References: <50665914.8080301@acm.poly.edu>
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On Sep 28, 2012, at 10:12 PM, Boris Kochergin <spawk@acm.poly.edu> wrote: > Hi. > > Firstly, my environment: > > FreeBSD isis.poly.edu 9.1-RC1 FreeBSD 9.1-RC1 #0: Thu Sep 20 23:42:23 EDT 2012 boris@jails.isis.poly.edu:/usr/obj/usr/src/sys/GENERIC amd64 > > qmail-tls-1.03.20021228_4 > > I have noticed that qmail-remote spins around using 100% CPU forever when delivering mail to a select few hosts. I believe this all to be in userspace as top reports that the CPU is busy with only userspace code. This has never happened when the machine was running 8.0-RELEASE, but happens with 8.2-RELEASE and 9.1-RC1. > > The environment this happens in is a jail. > > Calling truss on the offending processes produces no output, with truss in the "wait" state forever. I've tcpdumped the conversation between the qmail-remote process and the remote host. It is attached with this e-mail. > > Thoughts? > > -Boris > <qmail-remote.pcap> Boris the messages that are in the delivery queue ,at this time, can you share any details on them are they big, small etc . Also what file system do you use for the hauls .
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