amd64/131209: 7.1-STABLE amd64 crash

[John Baldwin]

The following reply was made to PR amd64/131209; it has been noted by GNATS.

From: John Baldwin <jhb at freebsd.org>
To: freebsd-amd64 at freebsd.org
Cc: Roar Pettersen <roar.pettersen at it.uib.no>,
        freebsd-gnats-submit at freebsd.org
Subject: Re: amd64/131209: 7.1-STABLE amd64 crash
Date: Mon, 2 Feb 2009 08:49:05 -0500

 On Saturday 31 January 2009 10:29:45 am Roar Pettersen wrote:
 > Fatal trap 12: page fault while in kernel mode
 > cpuid = 1; apic id = 01
 > fault virtual address   = 0x800000108
 > fault code              = supervisor read data, page not present
 > instruction pointer     = 0x8:0xffffffff8037690c
 > stack pointer           = 0x10:0xfffffffec329e5e0
 > frame pointer           = 0x10:0x0
 > 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         = 25972 (cron)
 > trap number             = 12
 > panic: page fault
 > cpuid = 1
 > Uptime: 6h33m10s
 > Physical memory: 2039 MB
 > Dumping 411 MB: 396 380 364 348 332 316 300 284 268 252 236 220 204 188 172 
 156 140 124 108 92 76 60 44 28 12
 > 
 > Reading symbols from /boot/kernel/blank_saver.ko...Reading symbols 
 from /boot/kernel/blank_saver.ko.symbols...done.
 > done.
 > Loaded symbols for /boot/kernel/blank_saver.ko
 > #0  0xffffffff802fa8fa in doadump () 
 at /usr/src/sys/kern/kern_shutdown.c:238
 > 238             if (dumper.dumper == NULL) {
 
 Can you provide the full backtrace?  This stack frame is well after the panic 
 in the code that writes out the crash dump, so it is not very useful.
 
 -- 
 John Baldwin