Date: Fri, 15 Jun 2012 18:50:24 +0700 From: Eugene Grosbein <egrosbein@rdtc.ru> To: Przemyslaw Frasunek <venglin@freebsd.lublin.pl> Cc: freebsd-net@freebsd.org, Andriy Gapon <avg@icyb.net.ua> Subject: Re: mpd5/Netgraph issues after upgrading to 7.4 Message-ID: <4FDB2180.4030609@rdtc.ru> In-Reply-To: <4FDB1D71.6050908@freebsd.lublin.pl> References: <4DAD3824.7000500@frasunek.com> <20110419074056.GG34767@glebius.int.ru> <4DB47CE1.8@frasunek.com> <4DB487D2.7030104@rdtc.ru> <4DB48B76.8050101@frasunek.com> <4DB49109.3050002@frasunek.com> <20110425050548.GF34767@glebius.int.ru> <4DBBBAD8.2000705@frasunek.com> <20110513162311.GK95084@glebius.int.ru> <4DD298AD.2060905@frasunek.com> <20110517184613.GN74366@glebius.int.ru> <4FDB1D71.6050908@freebsd.lublin.pl>
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15.06.2012 18:33, Przemyslaw Frasunek пишет: > Dear All, > > unfortunately, one of my mpd5 PPPoE access servers started panicing every few > hours. > > I'm running recent 8.3-STABLE (as of 23th May) with WITNESS, INVARIANTS and > DEBUG_MEMGUARD compiled. Unfortunately, I'm unable to catch crashdump. For some > reason, it is not saved on dumpdev. The reason is that 8-STABLE fails to stop scheduler on panic that breaks writing of crashdumps. 8.3-STABLE has new sysctl kern.stop_scheduler_on_panic. You should set it to 1 to get crashdumps saved. One more: does your box has PS/2 keyboard or USB? It matters too. For systems having USB keyboard there is another patch needed to obtain crashdumps (by Andriy Gapon): http://www.kuzbass.ru/freebsd/patches/stop_scheduler_on_panic.usb.diff Eugene Grosbein
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