Date: Mon, 5 Jul 2010 21:03:31 GMT From: alc@FreeBSD.org To: gallasch@free.de, alc@FreeBSD.org, freebsd-bugs@FreeBSD.org Subject: Re: kern/140338: [vm][panic] FreeBSD 8.0 RC2 with vm.pmap.pg_ps_enabled=1 kernel panic with makeworld Message-ID: <201007052103.o65L3VRH013483@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
Synopsis: [vm][panic] FreeBSD 8.0 RC2 with vm.pmap.pg_ps_enabled=1 kernel panic with makeworld State-Changed-From-To: open->closed State-Changed-By: alc State-Changed-When: Mon Jul 5 20:51:26 UTC 2010 State-Changed-Why: Ultimately, it was found that the root cause of these crashes was a hardware bug in AMD Family 10h processors. In January, AMD documented this bug as Errata 383. AMD's recommended workaround is implemented in FreeBSD 8.1-RELEASE and 7.3-STABLE. As a workaround in earlier releases, either hw.mca.enabled or vm.pmap.pg_ps_enabled must be disabled. In some cases, such FreeBSD running as a virtual machine, the only option is to disable vm.pmap.pg_ps_enabled because the hypervisor controls the machine check hardware. http://www.freebsd.org/cgi/query-pr.cgi?pr=140338
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201007052103.o65L3VRH013483>