Sched: trap type = 0x31

Question

I am Using Sparc Enterprise 250 with SunOS 5.7
Any guess on the problem below which causes the machine to crash and reboot..
Is there a known patch or something
BAD TRAP: cpu=0 type=0x31 rp=0x2a10003f350 addr=0x153f6e0b0 mmu_fsr=0x0
sched: trap type = 0x31
addr=0x153f6e0b0
pid=0, pc=0x780ea2a0, sp=0x2a10003ebf1, tstate=0x4400001602, context=0x872
g1-g7: 1, 153f6dfa8, 153f6de9c, 2870, 1, 0, 2a10003fd60
Begin traceback... sp = 2a10003ebf1
Called from 780ea7d4, fp=2a10003ed51, args=300034f5840 1 d1f7 0 10c 300002def78
Called from 780d07f4, fp=2a10003ee11, args=781d9d78 781b3a28 1 d1f7 c 781da370
Called from 780d14b4, fp=2a10003eed1, args=0 300034f5810 1 14 10527a40 ff08b954
Called from 7802fc70, fp=2a10003ef91, args=300034f3980 800 1 300001d15f0 348a2 30000319c88
Called from 1003af0c, fp=2a10003f051, args=30001780568 300034f3980 20 1 1 300001d15f0
Called from 10259584, fp=2a10003f101, args=30001780568 300034f3980 300001ece20 10100 7802fa94 300017806b8
Called from 10257f5c, fp=2a10003f1d1, args=300034f5800 30001780730 1468 36 7b0 30001e56c18
Called from 101b388c, fp=2a10003f281, args=80000000 1468 1400 30001e56000 300

Answer 1

Try to translate the hex PC addresses to symbolic names.
(unfortunatelly you're not runnnig solaris 8, the solaris
8 kernel does that automatically on a panic; the panic
output is much more usefull that way).
OK, the crash happened at
PC 780ea2a0
Called from
780ea7d4
780d07f4
780d14b4
7802fc70
1003af0c
10259584
10257f5c
101b388c
Login as root, then run
     adb -k
Now type each of the PC address followed by "?i"
Example:
% adb -k
physmem ba3d
1002377c?i
startup_memlist+0x9c: ld [%i0 + 0x284], %o0
10080db8?i
main+8: nop
^D
Post the result you've got.
(Lets hope the kernel modules are loaded at exactly the same
location now, otherwise even that translation will be
useless).
You may want to enable saving kernel crashdumps, too.
See the file /etc/init.d/sysetup, the commands
following "Default is to not do a savecore" must be
commented out.
Could be easier for Sun support or someone else to analyse
the problem where there's a crash dump available for the
panic.