On Sun, Oct 15, 2006 at 12:35:11PM +0400, Sergey Zaharchenko wrote: > Hello list! > > I've stumbled across this (probable) bug when doing some > number-crunching. Processes which try to access the filesystem hang at > some point when another process has been gobbling up CPU time for a > sufficiently long time. Interestingly, processes which have already > opened some files before the `hang' can apparently read/write them > without hindrance (iostat shows some disk activity). Interactive > processes run well too. When the number-cruncher is `kill -STOP'ped and > `kill -CONT'ed, everything runs well for another while. It's reliably > and frequently reproducible here both on recent and late August CURRENT, > the kernel is GENERIC, the hardware is basic (no RAID, etc.). > > Could anyone experienced enough try to look into this and/or give advice > for debugging the problem? I have ddb available, but I'm not sure about > where to look. > > http://www.freebsd.org/cgi/query-pr.cgi?pr=104406 I'm unable to reproduce so far. Kris
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