Subject: Had a couple of panics last night...
To: None <port-mvme68k@NetBSD.ORG>
From: Steve Woodford <steve@mctavish.demon.co.uk>
List: port-mvme68k
Date: 10/27/1996 11:54:02
Hi folks,

'mctavish' had a couple of panics last night, for some unknown reason.
I had my usual three '147s running, mctavish (the server), jings (diskless
nfs) and crivens (root/usr on local disk), and a Linux PC with 
mctavish:/home mounted.

mctavish was downloading some very large files over the modem, jings
was rebuilding perl5, and crivens was doing a 'make build' of NetBSD-
-current. The Linux PC wasn't doing much of anything.

Anyhow, just after I went to bed, mctavish panic'ed. Here's the
relevant logfile section:

------------------------
Oct 27 00:43:07 mctavish /netbsd: vm_fault(c4000, 6e8000, 1, 0) -> 1
Oct 27 00:43:07 mctavish /netbsd:   type 8, code [mmu,,ssw]: 401074d
Oct 27 00:43:07 mctavish /netbsd: trap type 8, code = 401074d, v = 6e8000
Oct 27 00:43:07 mctavish /netbsd: pid = 64, pc = 000546BE, ps = 2000, sfc = 0001, dfc = 0001
Oct 27 00:43:07 mctavish /netbsd: Registers:
Oct 27 00:43:07 mctavish /netbsd:              0        1        2        3        4        5        6        7
Oct 27 00:43:07 mctavish /netbsd: dreg: 00000200 00000020 00002000 00002000 006CB180 00000000 00000001 0000001F
Oct 27 00:43:07 mctavish /netbsd: areg: 006A4B00 006A4B00 0000E5F8 00692B00 0066B200 006E8000 00B99DB4 FFEFFEA8
Oct 27 00:43:07 mctavish /netbsd: 
Oct 27 00:43:07 mctavish /netbsd: Kernel stack (00B99B14):
Oct 27 00:43:07 mctavish /netbsd: B99B14: 0008F246 00B99B78 00000080 0008F01E 00000008 0401074D 006E8000 00002000
Oct 27 00:43:07 mctavish /netbsd: B99B34: 00002000 006CB180 00000000 00000001 0000001F 0000E5F8 00692B00 0066B200
Oct 27 00:43:07 mctavish /netbsd: B99B54: 006E8000 00000001 00000001 00000004 00B99DB4 00008326 00000008 0401074D
Oct 27 00:43:07 mctavish /netbsd: B99B74: 006E8000 00000200 00000020 00002000 00002000 006CB180 00000000 00000001
Oct 27 00:43:07 mctavish /netbsd: B99B94: 0000001F 006A4B00 006A4B00 0000E5F8 00692B00 0066B200 006E8000 00B99DB4
Oct 27 00:43:07 mctavish /netbsd: B99BB4: FFEFFEA8 00000000 20000005 46BEB008 0EEE074D 67CC0C2D 006E8000 006E8000
Oct 27 00:43:08 mctavish /netbsd: B99BD4: 00000189 4A954A95 000546C4 000546C2 000546C0 0000FFFF 67CC010C 000FF6EC
Oct 27 00:43:08 mctavish /netbsd: B99BF4: 00000189 00692B00 00007FFF 00000000 80000000 00B99C50 00000000 00000120
Oct 27 00:43:08 mctavish /netbsd: B99C14: 006E8000 00000000 00000002 00000007 00002004 00000002 00000002 985CB6D0
Oct 27 00:43:08 mctavish /netbsd: B99C34: 0065A800 0066B200 00686380 00000000 00002400 00645900 00000000 006E8000
Oct 27 00:43:08 mctavish /netbsd: B99C54: 006A0840 006A0800 00000008 00000189 00002000 000000C5 00000262 006E6000
Oct 27 00:43:08 mctavish /netbsd: B99C74: 006E8000 006E8000 00692B84 00096840 0069DD80 00B99CF4 00692B84 00B99C9C
Oct 27 00:43:08 mctavish /netbsd: B99C94: 006A0800 00000199 00000000 006E8000 00000000 00096948 0069DD80 00B99D54
Oct 27 00:43:08 mctavish /netbsd: B99CB4: 00692B84 00687600 00000068 00000000 0069DD80 3272A071 63D14DAB 00000000
Oct 27 00:43:08 mctavish /netbsd: B99CD4: 00000400 00000001 00000004 3272A071 63D14DAB 000811D2 006DB5E8 006DB580
Oct 27 00:43:08 mctavish /netbsd: B99CF4: 00B99CA0 00000001 00000000 00002400 00000000 00000001 00000000 00000000
Oct 27 00:43:08 mctavish /netbsd: zstty1: fifo overrun
Oct 27 00:43:08 mctavish /netbsd: panic: MMU fault
Oct 27 00:43:08 mctavish /netbsd: syncing disks... 9 9 done
-------------------------

Then, at about 01:30, the same thing; this time PID 65. Both PID 64 & 65
are nfsd servers....

I don't have any more info than this, as mctavish runs a lean/mean kernel
with no diagnostics or debug stuff. This is the first time mctavish has
ever paniced....

I don't expect this has anything at all to do with the change from
daylight savings time to GMT, but you never know. Strange that both jings
and crivens didn't crash so I guess it's not a date thing.

Any ideas? Perhaps this ought to be forwarded to 'netbsd-users' or some
other relevant list.

Cheers, Steve

Steve Woodford: steve@mctavish.demon.co.uk             NetBSD-1.2/mvme68k
Small fast computers breed fat slow programmers.        Motorola MVME147S
                  ...This is a Microsoft free zone...