On Mon, Apr 23, 2007 at 01:24:52PM +0100, Tom Judge wrote: > Hi, > > Recently I have noticed that one of our Dell PE1950's has been crashing > a lot with the following reason "supervisor read, page not present". > > The system runs 6.2 Release under i386. > > I have attached 2 back traces, and I still have both cores if any more > information is required. Any light that can be shed on this problem > would be greatly appreciated. > > Tom > > =========== > > uname -a > FreeBSD narthex.mintel.co.uk 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Mon > Apr 2 20:13:11 BST 2007 > [EMAIL PROTECTED]:/usr/obj/usr/src/sys/PE1950 i386 > > > ## Core 1 > > [EMAIL PROTECTED] '13:14:47' '/home/london/tj' > > $ kgdb /usr/obj/usr/src/sys/PE1950/kernel.debug /var/crash/vmcore.1 > [GDB will not be able to debug user-mode threads: > /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"] > 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 "i386-marcel-freebsd". > > Unread portion of the kernel message buffer: > > > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0x100005c > fault code = supervisor read, page not present > instruction pointer = 0x20:0xc05df61f > stack pointer = 0x28:0xe4f63c30 > frame pointer = 0x28:0xe4f63c90 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 12 (swi1: net) > trap number = 12 > panic: page fault > cpuid = 0 > Uptime: 1h25m33s > Dumping 2047 MB (2 chunks) > chunk 0: 1MB (159 pages) ... ok > chunk 1: 2047MB (523944 pages) 2031 2015 1999 1983 1967 1951 1935 1919 > 1903 1887 > <7>arp_rtrequest: bad gateway 172.31.1.1 (!AF_LINK) > <7>arp_rtrequest: bad gateway 172.31.0.1 (!AF_LINK)
You might be hitting a bug in an obscure code path because of the
above errors. I'm CC'ing someone who might be able to help.
Kris
> 1871 1855 1839 1823 1807 1791 1775 1759 1743 1727 1711 1695 1679 1663
> 1647 1631 1615 1599 1583 1567 1551 1535 1519 1503 1487 1471 1455 1439
> 1423 1407 1391 1375 1359 1343 1327 1311 1295 1279 1263 1247 1231 1215
> 1199 1183 1167 1151 1135 1119 1103 1087 1071 1055 1039 1023 1007 991 975
> 959 943 927 911 895 879 863 847 831 815 799 783 767 751 735 719 703 687
> 671 655 639 623 607 591 575 559 543 527 511 495 479 463 447 431 415 399
> 383 367 351 335 319 303 287 271 255 239 223 207 191 175 159 143 127 111
> 95 79 63 47 31 15
>
> #0 doadump () at pcpu.h:165
> 165 pcpu.h: No such file or directory.
> in pcpu.h
> (kgdb) bt
> #0 doadump () at pcpu.h:165
> #1 0xc05622ba in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
> #2 0xc05625e1 in panic (fmt=0xc06e2578 "%s") at
> /usr/src/sys/kern/kern_shutdown.c:565
> #3 0xc06b4580 in trap_fatal (frame=0xe4f63bf0, eva=16777308) at
> /usr/src/sys/i386/i386/trap.c:837
> #4 0xc06b42bf in trap_pfault (frame=0xe4f63bf0, usermode=0,
> eva=16777308) at /usr/src/sys/i386/i386/trap.c:745
> #5 0xc06b3f19 in trap (frame=
> {tf_fs = -1067581432, tf_es = -965803992, tf_ds = -964624344,
> tf_edi = -957112288, tf_esi = -965676032, tf_ebp = -453624688, tf_isp =
> -453624804, tf_ebx = 16777216, tf_edx = -968955648, tf_ecx = 4, tf_eax =
> 0, tf_trapno = 12, tf_err = 0, tf_eip = -1067583969, tf_cs = 32,
> tf_eflags = 66118, tf_esp = 3, tf_ss = 0}) at
> /usr/src/sys/i386/i386/trap.c:435
> #6 0xc06a095a in calltrap () at /usr/src/sys/i386/i386/exception.s:139
> #7 0xc05df61f in in_arpinput (m=0xc68ba200) at
> /usr/src/sys/netinet/if_ether.c:636
> #8 0xc05df4ea in arpintr (m=0xc68ba200) at
> /usr/src/sys/netinet/if_ether.c:551
> #9 0xc05d861b in netisr_processqueue (ni=0xc076b078) at
> /usr/src/sys/net/netisr.c:236
> #10 0xc05d881a in swi_net (dummy=0x0) at /usr/src/sys/net/netisr.c:349
> #11 0xc054cc49 in ithread_execute_handlers (p=0xc63ed860, ie=0xc643bb80)
> at /usr/src/sys/kern/kern_intr.c:682
> #12 0xc054cd59 in ithread_loop (arg=0xc63bb870) at
> /usr/src/sys/kern/kern_intr.c:765
> #13 0xc054b9fd in fork_exit (callout=0xc054cd04 <ithread_loop>,
> arg=0xc63bb870, frame=0xe4f63d38) at /usr/src/sys/kern/kern_fork.c:821
> #14 0xc06a09bc in fork_trampoline () at
> /usr/src/sys/i386/i386/exception.s:208
> (kgdb) exit
> Undefined command: "exit". Try "help".
> (kgdb) quit
>
>
> ## Core 2
> [EMAIL PROTECTED] '13:15:32' '/home/london/tj'
> > $ kgdb /usr/obj/usr/src/sys/PE1950/kernel.debug /var/crash/vmcore.0
> [GDB will not be able to debug user-mode threads:
> /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
> 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 "i386-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 = 0xb1
> fault code = supervisor read, page not present
> instruction pointer = 0x20:0xc047ed16
> stack pointer = 0x28:0xecd9c9e0
> frame pointer = 0x28:0xecd9c9e0
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def32 1, gran 1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process = 22409 (pfctl)
> trap number = 12
> panic: page fault
> cpuid = 1
> Uptime: 3d1h41m58s
> Dumping 2047 MB (2 chunks)
> chunk 0: 1MB (159 pages) ... ok
> chunk 1: 2047MB (523944 pages) 2031 2015 1999 1983 1967 1951 1935 1919
> 1903 1887 1871 1855 1839 1823 1807 1791 1775 1759 1743 1727 1711 1695
> 1679 1663 1647 1631 1615 1599 1583 1567 1551 1535 1519 1503 1487 1471
> 1455 1439 1423 1407 1391 1375 1359 1343 1327 1311 1295 1279 1263 1247
> 1231 1215 1199 1183 1167 1151 1135 1119 1103 1087 1071 1055 1039 1023
> 1007 991 975 959 943 927 911 895 879 863 847 831 815 799 783 767 751 735
> 719 703 687 671 655 639 623 607 591 575 559 543 527 511 495 479 463 447
> 431 415 399 383 367 351 335 319 303 287 271 255 239 223 207 191 175 159
> 143 127 111 95 79 63 47 31 15
>
> #0 doadump () at pcpu.h:165
> 165 pcpu.h: No such file or directory.
> in pcpu.h
> (kgdb) bt
> #0 doadump () at pcpu.h:165
> #1 0xc05622ba in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
> #2 0xc05625e1 in panic (fmt=0xc06e2578 "%s") at
> /usr/src/sys/kern/kern_shutdown.c:565
> #3 0xc06b4580 in trap_fatal (frame=0xecd9c9a0, eva=177) at
> /usr/src/sys/i386/i386/trap.c:837
> #4 0xc06b42bf in trap_pfault (frame=0xecd9c9a0, usermode=0, eva=177) at
> /usr/src/sys/i386/i386/trap.c:745
> #5 0xc06b3f19 in trap (frame=
> {tf_fs = 8, tf_es = -321322968, tf_ds = -1067909080, tf_edi =
> -965816192, tf_esi = -257, tf_ebp = -321271328, tf_isp = -321271348,
> tf_ebx = -957803852, tf_edx = 1, tf_ecx = -957803852, tf_eax = 0,
> tf_trapno = 12, tf_err = 0, tf_eip = -1069028074, tf_cs = 32, tf_eflags
> = 66050, tf_esp = -321271304, tf_ss = -1069021108}) at
> /usr/src/sys/i386/i386/trap.c:435
> #6 0xc06a095a in calltrap () at /usr/src/sys/i386/i386/exception.s:139
> #7 0xc047ed16 in pfi_ifhead_RB_NEXT (elm=0x1) at
> /usr/src/sys/contrib/pf/net/pf_if.c:120
> #8 0xc048084c in pfi_clear_flags (name=0xc66ed080 "", flags=-257) at
> /usr/src/sys/contrib/pf/net/pf_if.c:1004
> #9 0xc0485629 in pfioctl (dev=0xc66d6100, cmd=3223602266,
> addr=0xc66ed080 "", flags=3, td=0x0) at
> /usr/src/sys/contrib/pf/net/pf_ioctl.c:3191
> #10 0xc050fac3 in devfs_ioctl_f (fp=0xc6c72120, com=3223602266,
> data=0xc66ed080, cred=0xc6cab500, td=0xc6bcc900) at
> /usr/src/sys/fs/devfs/devfs_vnops.c:479
> #11 0xc0586249 in ioctl (td=0xc6bcc900, uap=0xecd9cd04) at file.h:264
> #12 0xc06b48c7 in syscall (frame=
> {tf_fs = 59, tf_es = 59, tf_ds = 59, tf_edi = -1077944364, tf_esi
> = 2, tf_ebp = -1077944344, tf_isp = -321270428, tf_ebx = 0, tf_edx = 0,
> tf_ecx = 0, tf_eax = 54, tf_trapno = 12, tf_err = 2, tf_eip = 672674543,
> tf_cs = 51, tf_eflags = 582, tf_esp = -1077944420, tf_ss = 59})
> at /usr/src/sys/i386/i386/trap.c:983
> #13 0xc06a09af in Xint0x80_syscall () at
> /usr/src/sys/i386/i386/exception.s:200
> #14 0x00000033 in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> (kgdb) supervisor read, page not presentQuit
> (kgdb)
>
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