Date: Sun, 02 May 2010 14:31:53 +0300 From: Mikolaj Golub <to.my.trociny@gmail.com> To: Roar Pettersen <roar.pettersen@uib.no> Cc: freebsd-net@freebsd.org Subject: Re: FreeBSD 8.0-STABLE & mpd -> system freeze Message-ID: <86k4rmtu8m.fsf@kopusha.onet> In-Reply-To: <alpine.GSO.2.00.1005021225180.25765@alf.uib.no> (Roar Pettersen's message of "Sun\, 2 May 2010 12\:46\:19 %2B0200 \(CEST\)") References: <alpine.GSO.2.00.1005021225180.25765@alf.uib.no>
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On Sun, 2 May 2010 12:46:19 +0200 (CEST) Roar Pettersen wrote: > Upgraded some servers from 7.2-stabel to 8.0-stable early april and > since then I have seen stability problems with 8.0 servers which use > mpd (vpn). > I have tried several mpd version (5.5, 5.3 and 5.1), but the system freeze > within 6 hours or 3-5 days. Early in april we got typical watchdog timeout > error message just before the system freeze, but now we don't get any > error message. Could you try disabling flowtable to see if it helps? sysctl -w net.inet.flowtable.enable=0 > Sometimes we also see that the mpd process goes into a none killeable > stauts, and then when I execute a "shutdown -r" the system hang with > this message : > > stopping mpd5 > Waiting for PIDS : 114830 second watchdog timeout expired. Shutdown terminated. > Apr 29 21:04:52 init : some process would not die; ps axl advised > Waiting (max 60 seconds) for system process 'vnlru' to stop... Could you provide the output of procstat -kk <mpdpid> when this happens again or even better: procstat -akk -- Mikolaj Golub
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