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DragonFly bugs List (threaded) for 2006-06
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Re: md panic


From: Sascha Wildner <saw@xxxxxxxxx>
Date: Tue, 06 Jun 2006 20:45:25 +0200

Sascha Wildner wrote:
Hi,

I had posted this earlier, maybe it got lost. Issuing:

# kldload md
# kldunload md

will panic a HEAD system. Dump available on request.

Sascha

Here's the trace:


#0 dumpsys () at thread.h:83
#1 0xc014eb41 in db_fncall (dummy1=-1068894800, dummy2=0, dummy3=-1071918536, dummy4=0xc72f79f0 "\030z/\307\006\232;\300\001") at /usr/src/sys/ddb/db_command.c:541
#2 0xc014e8fb in db_command (last_cmdp=0xc04999f0, cmd_table=0x0, aux_cmd_tablep=0xc0444728, aux_cmd_tablep_end=0xc044472c)
at /usr/src/sys/ddb/db_command.c:343
#3 0xc014e9db in db_command_loop () at /usr/src/sys/ddb/db_command.c:469
#4 0xc0151558 in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_trap.c:71
#5 0xc03b825c in kdb_trap (type=3, code=0, regs=0xc72f7b0c) at /usr/src/sys/i386/i386/db_interface.c:150
#6 0xc03cbb8e in trap (frame=
{tf_fs = -1069416424, tf_es = 16, tf_ds = -953221104, tf_edi = 1, tf_esi = -1069382888, tf_ebp = -953189548, tf_isp = -953189576, tf_ebx = 256, tf_edx = 981, tf_ecx = 0, tf_eax = 18, tf_trapno = 3, tf_err = 0, tf_eip = -1069840974, tf_cs = 8, tf_eflags = 642, tf_esp = -1069436450, tf_ss = -1069523019})
at /usr/src/sys/i386/i386/trap.c:788
#7 0xc03b952f in calltrap () at /usr/src/sys/i386/i386/exception.s:774
#8 0xc03b85b2 in Debugger (msg=0x12 <Address 0x12 out of bounds>) at cpufunc.h:73
#9 0xc01da0fc in panic (fmt=0xc0428318 "Trying to unregister OID_AUTO entry: %p") at /usr/src/sys/kern/kern_shutdown.c:682
#10 0xc01e43c2 in sysctl_unregister_oid_int (oidp=0x0) at /usr/src/sys/kern/kern_sysctl.c:169
#11 0xc01e439c in sysctl_unregister_oid (oidp=0x12) at /usr/src/sys/kern/kern_sysctl.c:159
#12 0xc01beb5c in linker_file_unregister_sysctls (lf=0x12) at /usr/src/sys/kern/kern_linker.c:230
#13 0xc01bf037 in linker_file_unload (file=0xc0b10a48) at /usr/src/sys/kern/kern_linker.c:470
#14 0xc01bf693 in sys_kldunload (uap=0x12) at /usr/src/sys/kern/kern_linker.c:766
#15 0xc03cc4e6 in syscall2 (frame=
{tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077937150, tf_esi = -1077937380, tf_ebp = -1077937456, tf_isp = -953189004, tf_ebx = 0, tf_edx = -256, tf_ecx = 1, tf_eax = 305, tf_trapno = 12, tf_err = 2, tf_eip = 134515252, tf_cs = 31, tf_eflags = 582, tf_esp = -1077938612, tf_ss = 47})
at /usr/src/sys/i386/i386/trap.c:1404
#16 0xc03b95ba in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:852
#17 0x0000001f in ?? ()
#18 0x0000002f in ?? ()
#19 0x00000000 in ?? ()
#20 0x00000000 in ?? ()
#21 0x00000000 in ?? ()
#22 0x00000000 in ?? ()
#23 0x02251000 in ?? ()
#24 0x0000000d in ?? ()
#25 0xc049f5b0 in intr_info_ary ()
#26 0xc72f79c4 in ?? ()
#27 0xc72f79ac in ?? ()
#28 0xc43a0900 in ?? ()
#29 0xc01e026c in lwkt_preempt (ntd=0xbfbffad0, critpri=31) at /usr/src/sys/kern/lwkt_thread.c:870
Previous frame inner to this frame (corrupt stack?)


Sascha

--
http://yoyodyne.ath.cx



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