Hi, I've got a panic by unplugging my NIC then plugging it again and then doing a dhclient <interface>. I've attached some informations about the panic.
-- Aurélien
Script started on Tue Nov 26 20:17:13 2002
[m[27m[Jnebula# [K[47C/sys/i386/compile/NEBULA[71Dggdb -k
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This GDB was configured as "i386-undermydesk-freebsd".
(kgdb) symbol-file kernel.debug
Reading symbols from kernel.debug...done.
(kgdb) exec-file /boot/kernel/kernel
(kgdb) core-file /var/crash/vmcore.0
panic: from debugger
panic messages:
---
panic: Most recently used by bus
panic: from debugger
Uptime: 2h0m15s
Dumping 123 MB
ata0: resetting devices ..
done
16 32 48 64 80 96 112
---
#0 doadump () at ../../../kern/kern_shutdown.c:232
232 dumping++;
(kgdb) bt
#0 doadump () at ../../../kern/kern_shutdown.c:232
#1 0xc0216bfe in boot (howto=260) at ../../../kern/kern_shutdown.c:364
#2 0xc0216e43 in panic () at ../../../kern/kern_shutdown.c:517
#3 0xc013bed2 in db_panic () at ../../../ddb/db_command.c:450
#4 0xc013be52 in db_command (last_cmdp=0xc039cee0, cmd_table=0x0,
aux_cmd_tablep=0xc0397a0c, aux_cmd_tablep_end=0xc0397a10)
at ../../../ddb/db_command.c:346
#5 0xc013bf66 in db_command_loop () at ../../../ddb/db_command.c:472
#6 0xc013ebfa in db_trap (type=3, code=0) at ../../../ddb/db_trap.c:72
#7 0xc032eed2 in kdb_trap (type=3, code=0, regs=0xc9077910)
at ../../../i386/i386/db_interface.c:166
#8 0xc033fabf in trap (frame=
{tf_fs = -1061945320, tf_es = -922288112, tf_ds = -1071644656, tf_edi =
-1045057088, tf_esi = 256, tf_ebp = -922257060, tf_isp = -922257092, tf_ebx = 0,
tf_edx = 0, tf_ecx = 3840, tf_eax = 18, tf_trapno = 3, tf_err = 0, tf_eip =
-1070403212, tf_cs = 8, tf_eflags = 658, tf_esp = -1070001757, tf_ss = -1070110374})
at ../../../i386/i386/trap.c:603
#9 0xc03306a8 in calltrap () at {standard input}:98
#10 0xc0216e2b in panic (fmt=0x0) at ../../../kern/kern_shutdown.c:503
#11 0xc0311c4d in mtrash_ctor (mem=0xc1820800, size=0, arg=0x0)
at ../../../vm/uma_dbg.c:138
#12 0xc0310667 in uma_zalloc_arg (zone=0xc0b4c3c0, udata=0x0, flags=0)
at ../../../vm/uma_core.c:1358
#13 0xc020b626 in malloc (size=6, type=0xc03c14e0, flags=0)
---Type <return> to continue, or q <return> to quit---
at ../../../kern/kern_malloc.c:182
#14 0xc01f1b73 in exec_elf32_imgact (imgp=0xc9077b88) at imgact_elf.c:804
#15 0xc01feae2 in kern_execve (td=0xc1b5b1c0, fname=---Can't read userspace from dump,
or kernel process---
)
at ../../../kern/kern_exec.c:313
#16 0xc01ff570 in execve (td=0x0, uap=0x0) at ../../../kern/kern_exec.c:694
#17 0xc034039e in syscall (frame=
{tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 135274340, tf_esi = 135274500,
tf_ebp = -1077938104, tf_isp = -922256012, tf_ebx = 0, tf_edx = 135274500, tf_ecx =
135274500, tf_eax = 59, tf_trapno = 12, tf_err = 2, tf_eip = 134723367, tf_cs = 31,
tf_eflags = 646, tf_esp = -1077938132, tf_ss = 47})
at ../../../i386/i386/trap.c:1033
#18 0xc03306fd in Xint0x80_syscall () at {standard input}:140
---Can't read userspace from dump, or kernel process---
(kgdb) frame 11
#11 0xc0311c4d in mtrash_ctor (mem=0xc1820800, size=0, arg=0x0)
at ../../../vm/uma_dbg.c:138
138 panic("Most recently used by %s\n", (*ksp == NULL)?
(kgdb) list
133
134 for (p = mem; cnt > 0; cnt--, p++)
135 if (*p != uma_junk) {
136 printf("Memory modified after free %p(%d)\n",
137 mem, size);
138 panic("Most recently used by %s\n", (*ksp == NULL)?
139 "none" : (*ksp)->ks_shortdesc);
140 }
141 }
142
(kgdb) p p
$1 = (u_int32_t *) 0x0
(kgdb) p uma_junk
$2 = 3735929054
(kgdb) quit
[m[27m[Jnebula# [K[47C/sys/i386/compile/NEBULA[71Deexit
Script done on Tue Nov 26 20:18:30 2002
msg47532/pgp00000.pgp
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