Date: Fri, 23 Oct 2009 14:49:28 -0400 From: Scott Ullrich <sullrich@gmail.com> To: Jaime Bozza <jbozza@mindsites.com> Cc: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: Re: Possible scheduler (SCHED_ULE) bug? Message-ID: <d5992baf0910231149qa4e89fdx2e1cde9b2a529cd3@mail.gmail.com> In-Reply-To: <CF092998EA82AE4D83AF9C9ECA9A8BDE02EB411A85@ATLAS.msg.local> References: <CF092998EA82AE4D83AF9C9ECA9A8BDE02EB411A85@ATLAS.msg.local>
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On Fri, Oct 23, 2009 at 2:46 PM, Jaime Bozza <jbozza@mindsites.com> wrote: > I believe I found a problem with the ULE scheduler - At least the fact that there is a problem, but I'm not sure where to go from here. The system locks all processes, but doesn't panic, so I have no output to give. > > I was able to duplicate this on three different machines and solved it by switching to the scheduler to 4BSD. > > Here's the environment: > > FreeBSD 7.2 i386, installed from bootonly ISO, Custom install, minimal, no other changes other than setting timezone, changing root password, and turning on sshd (allowing root and password connection). > > Running portsnap (fetch, then extract) to get latest ports tree. > > >From ports, make installs of lang/php5 and www/lighttpd, using defaults for all ports installed. > > Modified lighttpd.conf for PHP (attached diff), created a short script called uploadfile.php (attached). File was installed at /usr/local/www/data/uploadfile.php > > Start lighttpd (lighttpd_enable="YES" in rc.conf, /usr/local/etc/rc.d/lighttpd start), connect and run script. > > As long as I upload a file less than 64K, everything works fine. If I try to upload something larger than 64K, system no longer responds. Console prompt at login will allow me to enter username/password, but nothing happens after that. Console prompt logged in will allow me to type a single line, but if I press enter, nothing after that. > > No errors get written anywhere - console, logs, etc. > > I'm at a loss of what to do next. Can anyone give me ideas of what else I can do? Try adding this or changing these items in lighttpd.conf: ## FreeBSD! server.event-handler = "freebsd-kqueue" server.network-backend = "writev" Scott
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