Date: Fri, 13 Nov 2009 10:10:16 +0200 From: Andriy Gapon <avg@icyb.net.ua> To: "S.N.Grigoriev" <serguey-grigoriev@yandex.ru> Cc: freebsd-current@freebsd.org Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld Message-ID: <4AFD1468.5040909@icyb.net.ua> In-Reply-To: <36041258043646@webmail59.yandex.ru> References: <1031257439203@webmail57.yandex.ru> <20091105184925.16b55c43@ernst.jennejohn.org> <31221257446063@webmail71.yandex.ru> <20091106101943.5a763f43@ernst.jennejohn.org> <41361257585651@webmail39.yandex.ru> <20091107115256.3df62bc3@ernst.jennejohn.org> <1257618758.1511.14.camel@RabbitsDen> <6511257846119@webmail85.yandex.ru> <20091110105856.1270038e@ernst.jennejohn.org> <1257864452.46072.25.camel@RabbitsDen> <20091110162205.48abcffe@ernst.jennejohn.org> <4AF99D53.9030005@icyb.net.ua> <hdc73v$4rt$1@ger.gmane.org> <941257966918@webmail42.yandex.ru> <4AFC0F6A.3000501@icyb.net.ua> <36041258043646@webmail59.yandex.ru>
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on 12/11/2009 18:34 S.N.Grigoriev said the following: > > 12.11.09, 15:36, "Andriy Gapon" <avg@icyb.net.ua> > wrote: > >> Serguey, >> are you sure that setting vm.pmap.pg_ps_enabled=0 doesn't help you? >> I know that already asked you this once. >> But, could you please try again with vm.pmap.pg_ps_enabled=0 and hw.mca.enabled=1 >> and see what kind of behavior you get? >> I am curious what would happen, would it be the same kind of machine check condition. > > Andriy, > > I've done the world compilation with 'vm.pmap.pg_ps_enabled=0'. > The first attempt has finished with silent reboot. The second one has > been captured by the debugger: > > panic: backgroundwritedone: lost buffer > cpuid = 0 > KDB: enter: panic > [thread pid 3 tid 100014 ] > Stopped at breakpoint+0x5: leave > This is a really weird panic. Looks like perhaps there are multiple problems with your system. I wouldn't rule out a real hardware problem. Not sure what can be done. -- Andriy Gapon
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