Panic: Page not present: RELENG_6

[Gavin Atkinson]

On Wed, 2007-08-01 at 10:06 -0500, Larry Rosenman wrote:
> On Wed, 1 Aug 2007, Gavin Atkinson wrote:
> 
> > On Fri, 27 Jul 2007, Larry Rosenman wrote:
> >
> >> Fatal trap 12: page fault while in kernel mode
> >> cpuid = 0; apic id = 00
> >> fault virtual address   = 0xffff803fff800058
> >> fault code              = supervisor read data, page not present
> >> instruction pointer     = 0x8:0xffffffff803abb0e
> >> stack pointer           = 0x10:0xffffffffb5ebfa40
> >> frame pointer           = 0x10:0xffffffffb5ebfa90
> >> 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         = 57526 (sshd)
> >> trap number             = 12
> >> panic: page fault
> >> cpuid = 2
> >> KDB: stack backtrace:
> >> panic() at panic+0x253
> >> trap_fatal() at trap_fatal+0x2c6
> >> trap_pfault() at trap_pfault+0x243
> >> trap() at trap+0x298
> >> calltrap() at calltrap+0x5
> >> --- trap 0xc, rip = 0xffffffff803abb0e, rsp = 0xffffffffb5ebfa40, rbp = 
> >> 0xffffffffb5ebfa90 ---
> >> pmap_remove_pages() at pmap_remove_pages+0xde
> >> vmspace_exit() at vmspace_exit+0x9a
> >> exit1() at exit1+0x38c
> >> sys_exit() at sys_exit+0xe
> >> syscall() at syscall+0x437
> >> Xfast_syscall() at Xfast_syscall+0xa8
> >> --- syscall (1, FreeBSD ELF64, sys_exit), rip = 0x8016a096c, rsp = 
> >> 0x7fffffffc038, rbp = 0x53c240 ---
> >> Uptime: 36d18h48m54s
> >
> > How recent is the source used to build this kernel?
> >
> June 18th.

I don't think it is what I suspected it might be then.  Can you recreate
it with newer sources?

Gavin