Date: Thu, 19 Sep 2002 15:52:46 +0800 From: "David Xu" <davidxu@freebsd.org> To: <freebsd-current@freebsd.org> Subject: kernel crash at boot time Message-ID: <01be01c25fb1$8b92a990$ef01a8c0@davidwnt> References: <20020918200221.I266-100000@femme.sapphite.org> <00b401c25f87$38e460f0$ef01a8c0@davidwnt>
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Fatal trap 12: page fault while in kernel mode
fault virtual address =3D 0x10
fault code =3D supervisor read, page not present
instruction pointer =3D 0x8:0xc0227c89
stack pointer =3D 0x10:0xcd3029c4
frame pointer =3D 0x10:0xcd3029c4
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 182 (route)
panic: from debugger
#0 doadump () at ../../../kern/kern_shutdown.c:213
#1 0xc01f0819 in boot (howto=3D260) at =
../../../kern/kern_shutdown.c:345
#2 0xc01f0a48 in panic () at ../../../kern/kern_shutdown.c:493
#3 0xc0142692 in db_panic () at ../../../ddb/db_command.c:449
#4 0xc0142612 in db_command (last_cmdp=3D0xc0373820, =
cmd_table=3D0xc03299a8, aux_cmd_tablep=3D0x104,=20
aux_cmd_tablep_end=3D0xc0f04840) at ../../../ddb/db_command.c:345
#5 0xc0142726 in db_command_loop () at ../../../ddb/db_command.c:471
#6 0xc014538a in db_trap (type=3D12, code=3D0) at =
../../../ddb/db_trap.c:72
#7 0xc02fb2f2 in kdb_trap (type=3D12, code=3D0, regs=3D0xcd302984) at =
../../../i386/i386/db_interface.c:160
#8 0xc030b982 in trap_fatal (frame=3D0xcd302984, eva=3D0) at =
../../../i386/i386/trap.c:837
#9 0xc030b692 in trap_pfault (frame=3D0xcd302984, usermode=3D0, =
eva=3D16) at ../../../i386/i386/trap.c:756
#10 0xc030b20d in trap (frame=3D
{tf_fs =3D -1070333928, tf_es =3D 16, tf_ds =3D -1057947632, =
tf_edi =3D -1057927680, tf_esi =3D -1032651796, tf_ebp =3D -852481596, =
tf_isp =3D -852481616, tf_ebx =3D 238, tf_edx =3D 0, tf_ecx =3D =
-852481576, tf_eax =3D 0, tf_trapno =3D 12, tf_err =3D 0, tf_eip =3D =
-1071481719, tf_cs =3D 8, tf_eflags =3D 66054, tf_esp =3D -852481560, =
tf_ss =3D -1071466855}) at ../../../i386/i386/trap.c:444
#11 0xc02fca38 in calltrap () at {standard input}:98
#12 0xc022b699 in sbappendaddr (sb=3D0xc272fbec, asa=3D0xc038c9f8, =
m0=3D0xc0f14e00, control=3D0x0)
at ../../../kern/uipc_socket2.c:624
#13 0xc025de6f in raw_input (m0=3D0xc0f14e00, proto=3D0xc038ca18, =
src=3D0xc038c9f8, dst=3D0xc038c9e8)
at ../../../net/raw_usrreq.c:116
#14 0xc026032b in rt_missmsg (type=3D0, rtinfo=3D0xcd302a58, =
flags=3D132101, error=3D0) at ../../../net/rtsock.c:735
#15 0xc025e3eb in rtalloc1 (dst=3D0xc272c900, report=3D1, ignflags=3D0) =
at ../../../net/route.c:196
#16 0xc025f228 in rt_setgate (rt0=3D0xc2729500, dst=3D0xc272c9dc, =
gate=3D0xc272c9ec) at ../../../net/route.c:998
#17 0xc025ec45 in rtrequest1 (req=3D1, info=3D0xcd302b44, =
ret_nrt=3D0xcd302b3c) at ../../../net/route.c:659
#18 0xc025f9d6 in route_output (m=3D0xc0f14d00, so=3D0xc272fba0) at =
../../../net/rtsock.c:344
#19 0xc025e0cd in raw_usend (so=3D0x0, flags=3D0, m=3D0x0, nam=3D0x0, =
control=3D0x0, td=3D0xc0f04840) at ../../../net/raw_usrreq.c:260
#20 0xc025f745 in rts_send (so=3D0x0, flags=3D0, m=3D0x0, nam=3D0x0, =
control=3D0x0, td=3D0x0) at ../../../net/rtsock.c:239
#21 0xc0228fe3 in sosend (so=3D0xc272fba0, addr=3D0x0, uio=3D0xcd302c7c, =
top=3D0xc0f14d00, control=3D0x0, flags=3D0, td=3D0xc0f04840)
at ../../../kern/uipc_socket.c:707
#22 0xc0219300 in soo_write (fp=3D0x0, uio=3D0xcd302c7c, =
active_cred=3D0xc0f01200, flags=3D0, td=3D0xc0f04840)
at ../../../kern/sys_socket.c:89
#23 0xc0213455 in dofilewrite (td=3D0xc0f04840, fp=3D0xc26b1d5c, fd=3D0, =
buf=3D0x80aa300, nbyte=3D0, offset=3D0, flags=3D0) at file.h:214
#24 0xc0213299 in write (td=3D0xc0f04840, uap=3D0xcd302d10) at =
../../../kern/sys_generic.c:332
#25 0xc030bcee in syscall (frame=3D
{tf_fs =3D 47, tf_es =3D 47, tf_ds =3D 47, tf_edi =3D 134914908, =
tf_esi =3D 128, tf_ebp =3D -1077936872, tf_isp =3D -852480652, tf_ebx =
=3D 134914944, tf_edx =3D 134915680, tf_ecx =3D 0, tf_eax =3D 4, =
tf_trapno =3D 12, tf_err =3D 2, tf_eip =3D 134526191, tf_cs =3D 31, =
tf_eflags =3D 662, tf_esp =3D -1077936916, tf_ss =3D 47}) at =
../../../i386/i386/trap.c:1046
#26 0xc02fca8d in Xint0x80_syscall () at {standard input}:140
note that when kernel ran into DDB, the fault instruction was at =
m_length+9,=20
but core dump did not record the fact.
David Xu
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