Date: Tue, 14 Jul 2009 14:51:01 +0100 From: Ian J Hart <ianjhart@ntlworld.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: trap 12 Message-ID: <20090714145101.60515vh49s7o7c4k@10.248.192.16>
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Quoting John Baldwin <jhb@freebsd.org>: > On Tuesday 07 July 2009 5:51:03 am Ian J Hart wrote: >> Quoting Ian J Hart <ianjhart@ntlworld.com>: >> >>> Quoting Ian J Hart <ianjhart@ntlworld.com>: >>> >>>> Is this likely to be hardware? Details will follow if not. >>>> >>>> [copied from a screen dump] >>>> >>>> Fatal trap 12: page fault while in kernel mode >>>> cpuid = 1; apic id = 01 >>>> fault virtual address = 0x0 >>>> fault code = supervisor write data, page not present >>>> instruction pointer = 0x8:0xffffffff807c6c12 >>>> stack pointer = 0x10:0xffffffff510e7890 >>>> frame pointer = 0x10:0xffffff00054a6c90 >>>> 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 = 75372 (printf) >>>> trap number = 12 >>>> panic: page fault >>>> cpuid = 1 >>>> uptime: 8m2s >>>> Cannot dump. No dump device defined. >>>> >>>> >>> Ran crashinfo, now have much more info than I need ;) >>> >>> Starting another portupgrade run now to see how reproducable this is. >>> >>> Later BIOS waiting in USB floppy. >>> >> [snip dmesg] >> >> It took 2 runs of portupgrade -af.Some corruption in the dbs may have >> to pkg_delete -a. >> >> FreeBSD * 7.2-RELEASE-p1 FreeBSD 7.2-RELEASE-p1 #0: Tue Jun 16 >> 18:03:10 BST 2009 *@*:/usr/obj/usr/src/sys/GENERIC amd64 >> >> panic: page fault >> >> GNU gdb 6.1.1 [FreeBSD] >> Copyright 2004 Free Software Foundation, Inc. >> GDB is free software, covered by the GNU General Public License, and you are >> welcome to change it and/or distribute copies of it under certain > conditions. >> Type "show copying" to see the conditions. >> There is absolutely no warranty for GDB. Type "show warranty" for details. >> This GDB was configured as "amd64-marcel-freebsd"... >> >> Unread portion of the kernel message buffer: >> >> >> Fatal trap 12: page fault while in kernel mode >> cpuid = 1; apic id = 01 >> fault virtual address = 0xfffffffff5555570 >> fault code = supervisor write data, page not present >> instruction pointer = 0x8:0xffffffff807c429b >> stack pointer = 0x10:0xffffffff511e4710 >> frame pointer = 0x10:0x20 >> 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 = 69996 (mkdir) >> trap number = 12 >> panic: page fault > > This one does look like a hardware issue from the stack trace. It's hard to > know if the first panic you saw was a hardware issue as well without the > stack trace information. > >> #7 0xffffffff807b706e in calltrap () >> at /usr/src/sys/amd64/amd64/exception.S:209 >> #8 0xffffffff807c429b in free_pv_entry (pmap=0xffffffff80b66c80, >> pv=Variable "pv" is not available. >> ) >> at /usr/src/sys/amd64/amd64/pmap.c:1905 >> #9 0xffffffff807c4403 in pmap_remove_entry (pmap=Variable "pmap" is >> not available. >> ) >> at /usr/src/sys/amd64/amd64/pmap.c:2131 >> #10 0xffffffff807c6447 in pmap_remove_pte (pmap=0xffffffff80b66c80, >> ptq=0xaaaaaaa8, va=18446744070506639360, ptepde=23601251, >> free=0xffffffff511e4790) at /usr/src/sys/amd64/amd64/pmap.c:2366 >> #11 0xffffffff807cab87 in pmap_remove (pmap=0xffffffff80b66c80, >> sva=18446744070506639360, eva=18446744070506909696) >> at /usr/src/sys/amd64/amd64/pmap.c:2510 > > -- > John Baldwin > The remote backup continues to run so there was definitely some issue there. No more reboots, but it wasn't doing that regularly without some additional load. Hopefully I can swap parts around until I find the offending item. Thanks for your input. -- ian j hart ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.
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