On Wed, Mar 07, 2007 at 05:22:38AM +0300, Oleg Derevenetz wrote: > Hi ! > > Sometimes (once a week approximately) I have a problem with the same > symptoms described here on SMP FreeBSD 6.2-STABLE with dual AMD Opteron(tm) > Processor 850: > > http://www.freebsd.org/cgi/query-pr.cgi?pr=104406&cat= > > Sometimes (apparently when CPU load suddenly goes up) all processes that > interacts with disk gets stuck in "ufs" state, but in my case > SIGSTOP/SIGCONT seemingly does not help. See developer handbook, Deadlock Debugging chapter for instruction what information shall be gathered to debug the problem.
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