Date: Mon, 29 Oct 2007 15:15:46 +0300 From: "Oleg Derevenetz" <oleg@vsi.ru> To: <freebsd-stable@freebsd.org> Subject: Fw: kern/104406: [ufs] Processes get stuck in "ufs"stateunderpersistent CPU load Message-ID: <02d001c81a25$753e04d0$c8c55358@delloleg>
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>>> > Oleg, one thing you can do to make this less painful is to >>> > run your machine's console over serial port. >>> > >>> > First get a crossover serial cable, make sure it works from one >>> > box to another, it should be easy to run "tip com1" on both >>> > boxes to ensure that it works. >>> > >>> > Then you just need to add console=comconsole to /boot/loader.conf >>> > and your box's console should come over serial. >>> > >>> > Then on the machine watching the console, you can just do this: >>> > >>> > % script >>> > Script started, output file is typescript >>> > % tip com1 >>> > ...do ddb stuff now... >>> > ...stop tip >>> > % exit >>> > >>> > now you should have everything logged into a file called "typescript" >>> > should save you a big headache. >>> >>> Thanks, I'll try it in the monday morning. > > I posted a followup to kern/104406 that includes all information listed in "Debugging Deadlocks" chapter of FreeBSD Developer's > > Handbook. Can anyone take a look on it and say - is this certainly a hardware problem or some sort of software problem ? Anyone ? :-) -- Oleg Derevenetz <oleg@vsi.ru> OOD3-RIPE Phone: +7 4732 539880 Fax: +7 4732 531415 http://www.vsi.ru CenterTelecom Voronezh ISP http://isp.vsi.ru
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