crash from latest -HEAD

[Peter Avalos <pavalos@xxxxxxxxxxxx>]

Here's a crash from the latest -HEAD.  The kernel is already uploaded to
my crash/ on leaf.  The vmcore is still in progress.  I'll send a follow-up
email when that is complete.

--Peter

Fatal trap 12: page fault while in kernel mode
mp_lock = 00000000; cpuid = 0; lapic.id = 00000000
fault virtual address   = 0x24
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0297da6
stack pointer           = 0x10:0xdaa1ecd8
frame pointer           = 0x10:0xdaa1ed64
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         = Idle
current thread          = pri 44 (CRIT)
 <- SMP: XXX
trap number             = 12
panic: page fault
mp_lock = 00000000; cpuid = 0; lapic.id = 00000000
boot() called on cpu#0

syncing disks... 25 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
done
Uptime: 13h29m22s

dumping to dev #da/0x20001, offset 378927

<snip>

(kgdb) bt
#0  dumpsys () at thread.h:83
#1  0xc0196eac in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:360
#2  0xc01975fc in panic (fmt=0xc02ff58e "%s") at /usr/src/sys/kern/kern_shutdown.c:755
#3  0xc02e28ca in trap_fatal (frame=0xdaa1ec90, eva=0) at /usr/src/sys/platform/pc32/i386/trap.c:1090
#4  0xc02e2511 in trap_pfault (frame=0xdaa1ec90, usermode=0, eva=36) at /usr/src/sys/platform/pc32/i386/trap.c:991
#5  0xc02e20ca in trap (frame=
      {tf_gs = -1070792688, tf_fs = -626982888, tf_es = 16, tf_ds = 16, tf_edi = 350412, tf_esi = -1064838976, tf_ebp = -626922140, tf_isp = -626922304, tf_ebx = -750159616, tf_edx = -1035246472, tf_ecx = -1031713432, tf_eax = 0, tf_xflags = 0, tf_trapno = 12, tf_err = 0, tf_eip = -1071022682, tf_cs = 8, tf_eflags = 66118, tf_esp = -1031713432, tf_ss = 72}) at /usr/src/sys/platform/pc32/i386/trap.c:674
#6  0xc02cdf05 in calltrap () at /usr/src/sys/platform/pc32/i386/exception.s:782
#7  0xc0297da6 in vm_pageout_scan (pass=0) at /usr/src/sys/vm/vm_pageout.c:787
#8  0xc0298b8d in vm_pageout () at /usr/src/sys/vm/vm_pageout.c:1470
#9  0xc018924f in kthread_create_stk (func=0, arg=0x0, tdp=0xc03545a0, stksize=0, fmt=0x0) at /usr/src/sys/kern/kern_kthread.c:102
Previous frame inner to this frame (corrupt stack?)

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