Date: Thu, 8 May 2003 13:53:49 -0400 From: "Will Saxon" <WillS@housing.ufl.edu> To: <current@freebsd.org> Subject: hard lockups Message-ID: <0E972CEE334BFE4291CD07E056C76ED8CBBC51@bragi.housing.ufl.edu>
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Has anyone been experiencing non-panic hard freezes lately? I just = started running -current a couple of weeks ago, before that I had = 5.0-RELEASE without seeing any problems. Occasionally, I will just have a machine lockup, no panics, nothing. The = machine is unresponsive to the network also. Usually, there is some sort of disk activity - I have seen the lockup 3 = or 4 times trying to compile/install things, and 2x today, once = compiling a new kernel, the other while redirecting output from a job to = a text file. Today's lockups were using a May 6 kernel, SMP, none of the debugging = options, SCHED_ULE, LAZY_SWITCH, ADAPTIVE_MUTEXES, and = ZERO_COPY_SOCKETS. I have since recompiled to include all the debugging = options, but the only thing that has shown up is a lock order reversal = in the sound code. This machine is a dual celeron and uses ata drives. DMA is turned on. = Ethernet is via a 3c905B controller. The one hard drive is using the = onboard HPT366 controller, not the PIIX one. I'm not sure what else to include. I am always suspicious of hard = lockups, it is difficult to pinpoint what causes them since there is no = log entry to read. It could easily be a hardware issue, but since I = hadn't had problems before -current I thought I would write in. -Will
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