On 20-Nov-2003 Kris Kennaway wrote: > I updated bento last night, and it panicked after a few hours with: > > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 01 > fault virtual address = 0xe5 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc052e219 > stack pointer = 0x10:0xe00d2c3c > frame pointer = 0x10:0xe00d2c64 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > processor eflags = resume, IOPL = 0 > current process = 40 (irq29: sym0) > spin lock sched lock held by 0xc25a8640 for > 5 seconds > panic: spin lock held too long > cpuid = 1; > Debugger("panic") > > Unfortunately it hangs there instead of breaking to DDB. > > The instruction pointer is in: > > ... > c052e000 t propagate_priority > c052e360 T init_turnstiles > ... > > I'm currently rebuilding without WITNESS_SKIPSPIN in case this catches it. Argh, I didn't catch that you trap 12'd before the sched_lock hang. Do you have INVARIANTS on? Also, do you possibly have a kernel.debug around that you could try to figure out what line that IP corresponds to? -- John Baldwin <jhb_at_FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/Received on Thu Nov 20 2003 - 10:31:28 UTC
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