Date: Sun, 16 May 2004 18:45:09 -0400 (EDT) From: "Streiner, Justin" <streiner@stargate.net> To: freebsd-questions@freebsd.org Subject: troubleshooting page fault/kernel panic Message-ID: <Pine.GSO.4.58.0405161839400.16439@lurch>
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This is a freebsd 5.2.1 system. Sometimes, when copying large amounts of data from the network, the machine will page-fault, spit out some errors and reboot. Any insight as to what could be causing this and what I can do to fix it would be greatly appreciated. I can also provide more details on the hardware if needed. /var/log/messages shows the following from the event that caused the reboot: May 16 18:32:20 whammy kernel: Fatal trap 12: page fault while in kernel mode May 16 18:32:20 whammy kernel: cpuid = 0; apic id = 00 May 16 18:32:20 whammy kernel: fault virtual address = 0xf0db264b May 16 18:32:20 whammy kernel: fault code = supervisor read, page not present May 16 18:32:20 whammy kernel: instruction pointer = 0x8:0xc064f2a7 May 16 18:32:20 whammy kernel: stack pointer = 0x10:0xd77ccc48 May 16 18:32:20 whammy kernel: frame pointer = 0x10:0xd77ccc6c May 16 18:32:20 whammy kernel: code segment = base 0x0, limit 0xfffff, type 0x1b May 16 18:32:20 whammy kernel: = DPL 0, pres 1, def32 1, gran 1 May 16 18:32:20 whammy kernel: processor eflags = interrupt enabled, resume, IOPL = 0 May 16 18:32:20 whammy kernel: current process = 45 (swi7: task queue) May 16 18:32:20 whammy kernel: trap number = 12 May 16 18:32:20 whammy kernel: panic: page fault May 16 18:32:20 whammy kernel: cpuid = 0; May 16 18:32:20 whammy kernel: boot() called on cpu#0 May 16 18:32:20 whammy kernel: May 16 18:32:20 whammy kernel: syncing disks, buffers remaining... 3233 3233 3233 3233 3233 3233 3233 3233 3233 3233 3233 3233 3233 3233 ath0: device timeout May 16 18:32:20 whammy kernel: 3233 ad1: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=6728498 May 16 18:32:20 whammy kernel: 3233 3233 3233 3233 3233 ad1: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=6728498 May 16 18:32:20 whammy kernel: May 16 18:32:20 whammy kernel: giving up on 2914 buffers May 16 18:32:20 whammy kernel: Uptime: 2h24m54s May 16 18:32:20 whammy kernel: ad1: WARNING - WRITE_DMA interrupt was seen but taskqueue stalled LBA=6728498 May 16 18:32:20 whammy kernel: ad0: WARNING - FLUSHCACHE interrupt was seen but taskqueue stalled May 16 18:32:20 whammy kernel: ad1: WARNING - FLUSHCACHE interrupt was seen but taskqueue stalled May 16 18:32:20 whammy kernel: Shutting down ACPI
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