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DragonFly bugs List (threaded) for 2011-07
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Re: page fault panic in vm system

From: Peter Avalos <peter@xxxxxxxxxxxx>
Date: Sat, 9 Jul 2011 10:54:00 -1000
Mail-followup-to: bugs@crater.dragonflybsd.org

On Tue, Jul 05, 2011 at 08:47:46AM -1000, Peter Avalos wrote:
> I got a panic 2 nights in a row (both at around 2:55am which is weird).

I got another panic last night with mysqld as the current process.  The
kernel for this one is:

DragonFly ylem.theshell.com 2.11-DEVELOPMENT DragonFly
v2.11.0.491.g96956-DEVELOPMENT #54: Tue Jul  5 23:12:44 HST 2011
root@ylem.theshell.com:/usr/obj/usr/src/sys/YLEM  i386

I wasn't able to get a core, but this was on the console.  Not sure if
much can be gained from this:

Fatal trap 12: page fault while in kernel mode
cpuid = 1; lapic.id = 02000000
fault virtual address   = 0x14
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc02f2e20
stack pointer           = 0x10:0xecb89bd8
frame pointer           = 0x10:0xecb89be0
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         = 1017 (mysqld)
current thread          = pri 10
 <- SMP: XXX
trap number             = 12
panic: page fault
cpuid = 1
Trace beginning at frame 0xecb89ab0
panic(ffffffff,1,c0397168,ecb89ae4,dd185060) at panic+0x198
panic(c0397168,c03a8d3e,d8abdd30,1,1) at panic+0x198
trap_fatal(dff60078,0,1,0,dff60078) at trap_fatal+0x37c
trap_pfault(ecb89b68,ff809000,3,ff81b000,ecb89b78) at trap_pfault+0x111
trap(ecb89b90) at trap+0x54b
calltrap() at calltrap+0xd
--- trap 0, eip = 0, esp = 0xecb89bd4, ebp = 0x4 ---
boot() called on cpu#1
Uptime: 3d6h38m40s
Physical memory: 3057 MB
Dumping 698 MB:


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