6.2-STABLE (i386) Repeating crash (supervisor read, page not
mike at jellydonut.org
Mon Apr 23 17:12:31 UTC 2007
Kris Kennaway wrote:
> On Mon, Apr 23, 2007 at 01:24:52PM +0100, Tom Judge wrote:
>> 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.
>> uname -a
>> FreeBSD narthex.mintel.co.uk 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Mon
>> Apr 2 20:13:11 BST 2007
>> root at bob.mintel.co.uk:/usr/obj/usr/src/sys/PE1950 i386
>> ## Core 1
>> root at narthex '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
>> 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.
Bear in mind that a recent "urgent" firmware update was released by Dell
last week for 1950, 1955, and 2950 systems that is supposed to fix some
data-corruption issues related to dual-core processors. I don't know if
this problem is a symptom of that, but it strongly suggested to apply
the firmware update regardless.
More information about the freebsd-stable