Date: Fri, 24 Aug 2007 08:18:28 -0500 (CDT) From: Larry Rosenman <ler@lerctr.org> To: Gavin Atkinson <gavin.atkinson@ury.york.ac.uk> Cc: freebsd-stable@freebsd.org Subject: Re: Panic: Page not present: RELENG_6 Message-ID: <20070824081755.H7203@thebighonker.lerctr.org> In-Reply-To: <1187961425.26044.21.camel@buffy.york.ac.uk> References: <20070727093524.K20208@thebighonker.lerctr.org> <20070801160323.N14630@ury.york.ac.uk> <20070801100602.Q59551@thebighonker.lerctr.org> <1187961425.26044.21.camel@buffy.york.ac.uk>
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On Fri, 24 Aug 2007, Gavin Atkinson wrote: > On Wed, 2007-08-01 at 10:06 -0500, Larry Rosenman wrote: >> On Wed, 1 Aug 2007, Gavin Atkinson wrote: >> >>> On Fri, 27 Jul 2007, Larry Rosenman wrote: >>> >>>> Fatal trap 12: page fault while in kernel mode >>>> cpuid = 0; apic id = 00 >>>> fault virtual address = 0xffff803fff800058 >>>> fault code = supervisor read data, page not present >>>> instruction pointer = 0x8:0xffffffff803abb0e >>>> stack pointer = 0x10:0xffffffffb5ebfa40 >>>> frame pointer = 0x10:0xffffffffb5ebfa90 >>>> code segment = base 0x0, limit 0xfffff, type 0x1b >>>> = DPL 0, pres 1, long 1, def32 0, gran 1 >>>> processor eflags = interrupt enabled, resume, IOPL = 0 >>>> current process = 57526 (sshd) >>>> trap number = 12 >>>> panic: page fault >>>> cpuid = 2 >>>> KDB: stack backtrace: >>>> panic() at panic+0x253 >>>> trap_fatal() at trap_fatal+0x2c6 >>>> trap_pfault() at trap_pfault+0x243 >>>> trap() at trap+0x298 >>>> calltrap() at calltrap+0x5 >>>> --- trap 0xc, rip = 0xffffffff803abb0e, rsp = 0xffffffffb5ebfa40, rbp = >>>> 0xffffffffb5ebfa90 --- >>>> pmap_remove_pages() at pmap_remove_pages+0xde >>>> vmspace_exit() at vmspace_exit+0x9a >>>> exit1() at exit1+0x38c >>>> sys_exit() at sys_exit+0xe >>>> syscall() at syscall+0x437 >>>> Xfast_syscall() at Xfast_syscall+0xa8 >>>> --- syscall (1, FreeBSD ELF64, sys_exit), rip = 0x8016a096c, rsp = >>>> 0x7fffffffc038, rbp = 0x53c240 --- >>>> Uptime: 36d18h48m54s >>> >>> How recent is the source used to build this kernel? >>> >> June 18th. > > I don't think it is what I suspected it might be then. Can you recreate > it with newer sources? > > Gavin > I haven't seen it again, and the system is currently running sources from: FreeBSD thebighonker.lerctr.org 6.2-STABLE FreeBSD 6.2-STABLE #1: Sat Aug 4 14:32:38 CDT 2007 root@thebighonker.lerctr.org:/usr/obj/usr/src/sys/THEBIGHONKER amd64 August 4. Thanks! LER -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 512-248-2683 E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
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