Date: Thu, 11 Mar 2010 11:09:43 -0800 From: Mark Atkinson <atkin901@gmail.com> To: freebsd-fs@freebsd.org Cc: freebsd-stable@freebsd.org Subject: Re: proliant server lockups with freebsd-amd64-stable (2010-03-10) Message-ID: <hnbf5n$eod$1@dough.gmane.org> In-Reply-To: <4B993D19.60504@icyb.net.ua> References: <20100311133916.42ba69b0@orwell.free.de> <hnbcid$339$1@dough.gmane.org> <4B993D19.60504@icyb.net.ua>
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On 03/11/10 10:57, Andriy Gapon wrote: > on 11/03/2010 20:25 Mark Atkinson said the following: >> On 03/11/10 04:39, Kai Gallasch wrote: >>> Hi. >>> >>> I have some trouble with an opteron server locking up spontaneously. It looses >>> all networks connectivity and even through console I can get no shell. >>> >>> Lockups occur mostly under disk load (periodic daily, bacula backup >>> running, make buildworld/buildkernel) and I can provoke them easily. >> >> try adding: >> >> vm.pmap.pg_ps_enabled="0" > > The lockups happen with this setting too. > This is likely a red herring, because Kai already has Alan's workaround from head. I'm not sure that the workaround covered the processor listed here > CPU: Quad-Core AMD Opteron(tm) Processor 2352 (2100.08-MHz K8-class CPU) > Origin = "AuthenticAMD" Id = 0x100f23 Stepping = 3 (mine is the same number and wasn't covered by the coded workaround commited to Linux, or IIRC Freebsd -- I'll have to look again). Turning off superpages totally solves the problem for me. But for Kai's problem, as Andriy points out, turning it off may not solve it. If I turn off superpages and enable MCE's I'll get the MCE when hitting the condition, so I just leave the MCE code off. >> to /boot/loader.conf and reboot. >> >> Long thread reference: >> >> http://thread.gmane.org/gmane.os.freebsd.current/121035/focus=121457 >> >> possible AMD "errata 147" > > 147? > I thought this problem was speculated to be from the bug: http://bugzilla.kernel.org/show_bug.cgi?id=11305 Which references an AMD "errata 147" from "Revision Guide for AMD Athlon™ 64 and AMD Opteron™ Processors." http://support.amd.com/us/Processor_TechDocs/25759.pdf
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