Panic in _mtx_lock_flags+0x40

This kernel is yesterday's.  I'll update the kernel and try again...


ad0: READ command timeout tag=0 serv=0 - resetting
ata0: resetting devices ..
done
ad0: READ command timeout tag=0 serv=0 - resetting
ata0: resetting devices ..
done
ad0: READ command timeout tag=0 serv=0 - resetting
ata0: resetting devices ..
done
ad0: READ command timeout tag=0 serv=0 - resetting
ata0: resetting devices ..
ad0: removed from configuration


Fatal trap 12: page fault while in kernel mode
cpuid = 0; lapic.id = 00000000
fault virtual address   = 0x0
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc02259c0
stack pointer           = 0x10:0xe11eda54
frame pointer           = 0x10:0xe11eda70
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         = 13 (swi7: tty:sio clock)
kernel: type 12 trap, code=0
Stopped at      _mtx_lock_flags+0x40:   cmpl    $0xc043c18c,0(%ecx)
db> trace
_mtx_lock_flags(0,0,c0401b81,11d,e11edb18) at _mtx_lock_flags+0x40
vm_fault(c082f000,deadc000,1,0,c3affab0) at vm_fault+0x2cc
trap_pfault(e11edc10,0,deadc0de,cf74d400,deadc0de) at trap_pfault+0x161
trap(c0410018,10,c03e0010,c7a73c9c,c7e8f600) at trap+0x3ad
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0xc015c580, esp = 0xe11edc50, ebp = 0xe11edc68 ---
ad_detach(c7a73c9c,ffffffff,c03d5de3,0,1) at ad_detach+0x40
ata_reinit(c7a73c00,cacf5100,c03d1747,0,0) at ata_reinit+0x9b
ad_timeout(cacf5100,0,c03ec2fe,bf,4feaef) at ad_timeout+0x136
softclock(0,0,c03e9271,233,c3afe780) at softclock+0x19c
ithread_loop(c3afd200,e11edd48,c03e9122,2f8,0) at ithread_loop+0x182
fork_exit(c021bab0,c3afd200,e11edd48) at fork_exit+0xc0
fork_trampoline() at fork_trampoline+0x1a
--- trap 0x1, eip = 0, esp = 0xe11edd7c, ebp = 0 ---
db> panic
panic: from debugger
cpuid = 0; lapic.id = 00000000
Debugger("panic")


Fatal trap 3: breakpoint instruction fault while in kernel mode
cpuid = 0; lapic.id = 00000000
instruction pointer     = 0x8:0xc038ef75
stack pointer           = 0x10:0xe11ed7c4
frame pointer           = 0x10:0xe11ed7d0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = IOPL = 0
current process         = 13 (swi7: tty:sio clock)
Stopped at      _mtx_lock_flags+0x40:   cmpl    $0xc043c18c,0(%ecx)
db> panic
panic: from debugger
cpuid = 0; lapic.id = 00000000
boot() called on cpu#0
Uptime: 14h33m40s
Dumping 2047 MB
ata2: resetting devices ..
done
ad4: timeout waiting for DRQata2: resetting devices ..


-- 
Jun Kuriyama <kuriyama_at_imgsrc.co.jp> // IMG SRC, Inc.
             <kuriyama_at_FreeBSD.org> // FreeBSD Project