Re: 4.01 panic/lock issues?

[John Carr <jcarr%poethecat.com@localhost>]

On Sat, Jan 03, 2009 at 11:04:56AM +0900, Izumi Tsutsui wrote:
> INSTALL kernel doesn't have ddb(4), so "trace" output on the ddb
> prompt after panic with GENERIC kernel might help.
> (see ddb(4) man page for details)

I compiled Manuel's GENERIC config to use as a baseline, and the system
booted fine, as expected. Using INSTALL, 'mutt' tends to consistently
cause a kernel panic, so I ran it again. The results are below, with
'tr' output:


---
vm_fault(0xe1b3518, 0x0, 0x1) -> 0xe
trap type=0x8, code=0x145, v=0x4
kernel: MMU fault trap
pid = 627, lid = 1, pc = 0E14C95C, ps = 2014, sfc = 1, dfc = 1
Registers:
             0        1        2        3        4        5        6
7
dreg: 00000002 00000002 0000003A 00000004 00000466 0F9E9FB4 0F9E6118
00000114
areg: 0F9E6124 0E1BBE3C 00000000 0E1BBE3C 0F9E6118 0F9E9F70 0F9E9ED0
0DFFB16C

Kernel stack (0F9E9D94):
9E9D94: 0E149658 0F9E9E1C 00000080 0000003A 00000004 00000466 0F9E9FB4
0F9E6118
9E9DB4: 00000114 00000000 0E1BBE3C 0F9E6118 0F9E9F70 0E1B3518 00000000
00000001
9E9DF4: 00000008 00000000 00000000 00000000 0F9E9ED0 0E0040EC 0F9E9E1C
00000008
9E9E14: 00000145 00000004 00000002 00000002 0000003A 00000004 00000466
0F9E9FB4
9E9E34: 0F9E6118 00000114 0F9E6124 0E1BBE3C 00000000 0E1BBE3C 0F9E6118
0F9E9F70
9E9E54: 0F9E9ED0 0DFFB16C 00000000 20140E14 C95CB008 0E2C0145 701FE1AA
00000004
9E9E74: 00000004 00000002 242A0004 0E14C964 0E14C962 0E14C960 701FE1AE
0004FF0A
9E9E94: 000F1487 00003038 00004003 00003038 00000000 80200000 00000004
00000000
9E9EB4: 00049A5D 0E14B44E 0000003A 00000004 00000000 0E14BCE4 0F9E9FB4
0F9E9F24
9E9ED4: 0E14B466 0E1BBE3C 00000000 00000002 0F9E6118 0F9E6040 00000090
00000000
9E9EF4: 00000000 00000000 00000114 0EF57200 0F965A84 0F9E9FB4 0E0F49E8
00000090
9E9F14: 0EF57200 0F965A84 0F9E9FB4 0F9E9F9C 0F9E9F9C 0E14997E 0F9E9FB4
0F9E6040
9E9F34: 0F9E9F70 00000000 00000153 00000080 0DFF000A 0008A4FE 0DFFBF54
0DFFBF68
9E9F54: 0009B4A0 000063F8 0DFFDE10 0F965A84 0F9E9F7C 0E149AEA 0EF57200
00000001
9E9F74: 00000000 00000000 00000000 00000000 00000000 00000000 00000010
00000000
panic: MMU fault
Stopped in pid 627.1 (mutt) at  netbsd:cpu_Debugger+0x6:        unlk
a6
db> tr
cpu_Debugger(2000,8,ef57200,f9e9da0,f9e9e04) + 6
panic(e198d79,3a,4,466,f9e9fb4) + 11a
trap(f9e9e1c,8,145,4) + 244
fpu_implode(e1bbe3c,0,2,f9e6118) + ac
(f9e9fb4,f9e6040,f9e9f70) + 184e2
trap(f9e9fb4,10,0,0) + 548
fault() + 10