Date: Thu, 23 Dec 2004 19:19:19 +1100 From: Peter Jeremy <PeterJeremy@optushome.com.au> To: Benjamin Lutz <benlutz@datacomm.ch> Cc: freebsd-stable@freebsd.org Subject: Re: slow system freeze Message-ID: <20041223081918.GA5824@cirb503493.alcatel.com.au> In-Reply-To: <200412230408.48770.benlutz@datacomm.ch> References: <200412230408.48770.benlutz@datacomm.ch>
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On Thu, 2004-Dec-23 04:08:39 +0100, Benjamin Lutz wrote: >I'm having a Problem with FreeBSD 5.3 here. The system slowly freezes. > >It starts with one application that just locks up. Other applications >still work, but when I switch to them and do stuff in them, they usually >lock up after a few seconds as well. Starting new processes or logging in >at a physical console does not work anymore, and after about 30 secs the >whole system is frozen. Nothing is printed to the first physical console >or the logs. This has happened both under load and while the system was >mostly idle (just me irc'ing). Can you do a 'ps axl' as the system freezes. Of particular interest would be the WCHAN for the frozen processes. What still works when the system is frozen? Can you switch VTYs? Do ping's work (from another system)? To actually solve the problem, you're going to need to enable DDB. See http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html Again, a "ps" with the system frozen is the first step. -- Peter Jeremy
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