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Date:      Mon, 10 May 2004 09:00:10 +0200
From:      Volker Stolz <vs@freebsd.org>
To:        stable@freebsd.org
Subject:   nullfs-autopsy after crash
Message-ID:  <20040510070010.GA587@i2.informatik.rwth-aachen.de>

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FreeBSD menelaos.informatik.rwth-aachen.de 4.9-STABLE FreeBSD 4.9-STABLE #15: Thu Mar 25 15:34:34 CET 2004     root@menelaos.informatik.rwth-aachen.de:/usr/obj/usr/src/sys/MENELAOS  i386

IdlePTD at physical address 0x00414000
initial pcb at physical address 0x00344ee0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x5
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0170aeb
stack pointer           = 0x10:0xe4517e50
frame pointer           = 0x10:0xe4517e50
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         = 93057 (tpike)
interrupt mask          = none
trap number             = 12
panic: page fault

#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1  0xc017cc2b in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
#2  0xc017d050 in poweroff_wait (junk=0xc030d68c, howto=-1070542449) at /usr/src/sys/kern/kern_shutdown.c:595
#3  0xc02b585e in trap_fatal (frame=0xe4517e10, eva=5) at /usr/src/sys/i386/i386/trap.c:974
#4  0xc02b5531 in trap_pfault (frame=0xe4517e10, usermode=0, eva=5) at /usr/src/sys/i386/i386/trap.c:867
#5  0xc02b511b in trap (frame={tf_fs = -1071185904, tf_es = 7274512, tf_ds = -470482928, tf_edi = 66, tf_esi = 0,
      tf_ebp = -464421296, tf_isp = -464421316, tf_ebx = 0, tf_edx = -1005856640, tf_ecx = -1005856640, tf_eax = 0,
      tf_trapno = 12, tf_err = 0, tf_eip = -1072231701, tf_cs = 8, tf_eflags = 66067, tf_esp = -464421276,
      tf_ss = -1070920420}) at /usr/src/sys/i386/i386/trap.c:466
#6  0xc0170aeb in major (x=0x0) at /usr/src/sys/kern/kern_conf.c:190
#7  0xc02b0d1c in iszerodev (dev=0x0) at /usr/src/sys/i386/i386/mem.c:548
#8  0xc027411a in mmap (p=0xe4499a80, uap=0xe4517f80) at /usr/src/sys/vm/vm_mmap.c:318
#9  0xc02b5b0d in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 1600000, tf_esi = 0, tf_ebp = -1077939856,
      tf_isp = -464420908, tf_ebx = 673662988, tf_edx = 66, tf_ecx = 3, tf_eax = 198, tf_trapno = 12, tf_err = 2,
      tf_eip = 673337284, tf_cs = 31, tf_eflags = 663, tf_esp = -1077939932, tf_ss = 47})
    at /usr/src/sys/i386/i386/trap.c:1175
#10 0xc02a98d5 in Xint0x80_syscall ()
#11 0x806414a in ?? ()

/bin on /usr/tmp/jail/bin (null, local, read-only)
/sbin on /usr/tmp/jail/sbin (null, local, read-only)
/etc on /usr/tmp/jail/etc (null, local, read-only)
/dev on /usr/tmp/jail/dev (null, local, read-only)
/usr/bin on /usr/tmp/jail/usr/bin (null, local, read-only)
/usr/sbin on /usr/tmp/jail/usr/sbin (null, local, read-only)
/usr/include on /usr/tmp/jail/usr/include (null, local, read-only)
/usr/lib on /usr/tmp/jail/usr/lib (null, local, read-only)
/usr/libexec on /usr/tmp/jail/usr/libexec (null, local, read-only)
/usr/ports on /usr/tmp/jail/usr/ports (null, local)

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