Date: Mon, 13 Jul 2009 15:15:58 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: trap 12 Message-ID: <200907131515.59195.jhb@freebsd.org> In-Reply-To: <20090707105103.946813hdks2mra80@10.248.192.16> References: <20090703100627.197838cphjnil82s@10.248.192.16> <20090706200115.1411150frxepkbuo@webmail.private.lan> <20090707105103.946813hdks2mra80@10.248.192.16>
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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
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