Hello,
On recently compiled kernels, I often get panics which seemed to be interrupt related.
Among other things, almost all of them claims that Kernel trap 30, which seemd to be
strange.
The kernel I am currently running, namely,
FreeBSD servers.frontfree.net 5.1-CURRENT FreeBSD 5.1-CURRENT #5: Sat Oct 25 22:27:05
CST 2003 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/SERVERS i386
seemed to be ok, however, when I am trying the new kernels (you see, 14 compile and
run attempts:), it exhibits incredible instablity.
FreeBSD 5.1-CURRENT #19: Wed Nov 12 12:17:28 CST 2003
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/SERVERS
Here is one of the crashdumps I caught. The machine was configured with a UP kernel,
with DEVICE_POLLING enabled. There are two networking adapters attached to it, a fxp
and a dc, and the machine itself act as a NAT gateway. The network load is not very
heavy. If you think the backtrace helpful, or need any more information, please write
me and I will try everything I can to help.
servers# gdb -k /usr/obj/usr/src/sys/SERVERS/kernel.debug vmcore.0
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This GDB was configured as i386-undermydesk-freebsd...
panic: from debugger
panic messages:
---
panic: from debugger
Fatal trap 3: breakpoint instruction fault while in kernel mode
instruction pointer = 0x8:0xc0639654
stack pointer = 0x10:0xc6305a98
frame pointer = 0x10:0xc6305aa4
code segment= base 0x0, limit 0xf, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags= IOPL = 0
current process = 11 (idle)
panic: from debugger
Uptime: 23m22s
Dumping 63 MB
16 32 48
---
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
240 dumping++;
(kgdb) where
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1 0xc04e8b41 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:372
#2 0xc04e8ed7 in panic () at /usr/src/sys/kern/kern_shutdown.c:550
#3 0xc0464252 in db_panic () at /usr/src/sys/ddb/db_command.c:450
#4 0xc04641b2 in db_command (last_cmdp=0xc06cc440, cmd_table=0x0,
aux_cmd_tablep=0xc069d338,
aux_cmd_tablep_end=0xc069d33c) at /usr/src/sys/ddb/db_command.c:346
#5 0xc04642f5 in db_command_loop () at /usr/src/sys/ddb/db_command.c:472
#6 0xc04672e5 in db_trap (type=30, code=0) at /usr/src/sys/ddb/db_trap.c:73
#7 0xc063939c in kdb_trap (type=30, code=0, regs=0xc6305ca0) at
/usr/src/sys/i386/i386/db_interface.c:171
#8 0xc064cda6 in trap_fatal (frame=0xc6305ca0, eva=0) at
/usr/src/sys/i386/i386/trap.c:816
#9 0xc064c822 in trap (frame=
{tf_fs = 24, tf_es = 1075970064, tf_ds = -1636237296, tf_edi = 0, tf_esi =
-1059059840, tf_ebp = -969909024, tf_isp = -969909044, tf_ebx = -1059063048, tf_edx =
0, tf_ecx = 2, tf_eax = 0, tf_trapno = 30, tf_err = 0, tf_eip = -1067175531, tf_cs =
8, tf_eflags = 582, tf_esp = -969909016, tf_ss = -1067175489})
at /usr/src/sys/i386/i386/trap.c:618
#10 0xc063ad58 in calltrap () at {standard input}:94
#11 0xc06431bf in cpu_idle () at /usr/src/sys/i386/i386/machdep.c:1071
#12 0xc04d449c in idle_proc (dummy=0x0) at /usr/src/sys/kern/kern_idle.c:86
#13 0xc04d41d4 in fork_exit (callout=0xc04d4460 idle_proc, arg=0x0, frame=0x0)
at /usr/src/sys/kern/kern_fork.c:793
(kgdb) bt full
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
No locals.
#1 0xc04e8b41 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:372
No locals.
#2 0xc04e8ed7 in panic () at /usr/src/sys/kern/kern_shutdown.c:550
td = (struct thread *) 0xc0e00780
bootopt = 260
newpanic = 0
ap = 0xc6305ae0 \230[0AF2251d?
buf = from debugger, '\0' repeats 242 times
#3 0xc0464252 in db_panic () at /usr/src/sys/ddb/db_command.c:450
No locals.
#4 0xc04641b2 in db_command (last_cmdp=0xc06cc440, cmd_table=0x0,
aux_cmd_tablep=0xc069d338,
aux_cmd_tablep_end=0xc069d33c) at /usr/src/sys/ddb/db_command.c:346
cmd = (struct command *) 0xc06658c0
t = 0
modif =
\0\231r?[0r\0\0\0qr\0\0\0\001\0\0\0H[0200\214qaK\0
$rp\0\0\0l\231r[0`F\234h200^F0\0\0\0\020\0\0\0h\231rWF200\0\0\0\020\0\0
addr = -1067175531
count = -1
have_addr = 0
result = 0
#5 0xc04642f5 in db_command_loop () at /usr/src/sys/ddb/db_command.c:472
No locals.
#6 0xc04672e5 in db_trap (type=30, code=0) at /usr/src/sys/ddb/db_trap.c:73
bkpt = 0
#7 0xc063939c in kdb_trap (type=30, code=0, regs=0xc6305ca0) at
/usr/src/sys/i386/i386/db_interface.c:171
ef = 582
ddb_mode = 1
#8 0xc064cda6 in trap_fatal (frame=0xc6305ca0, eva=0) at
/usr/src/sys/i386/i386/trap.c:816
code = 16
type = 30
ss =
