Very Computer

Our central server machine is a SC2000 with 2 CPUs, 128MB memory and with
Solaris 2.4. Last week this machine started to panic with memory address
alignment errors. We installed the jumbo kernel patch 101945-34.

The panics just didn't stop. We checked the memory by SunDiag, no problem.
We were told to check the memory at the boot prompt too, and to our biggest
surprise the memory test told that the machine had only 127MB memory!!

OK, we removed the SIMs four by four and put back brand new SIM modules.
The test always said the machine had 127MB. We replaced the motherboard by
another one - no change.

We let the machine to run with the new motherboard and after two days,
the machine paniced again!

Here are the messages:

Nov 16 17:51:11 sunserv unix: BAD TRAP: cpu_id=1 type=7 <Memory address alignment> addr=0 rw=0 rp=e0ff6ce4
Nov 16 17:51:11 sunserv unix: MMU sfsr=0x0: ft=<None>
Nov 16 17:51:11 sunserv unix: sched: Memory address alignment
Nov 16 17:51:11 sunserv unix: cv_block+0x14, pid=0, pc=0xe005e824, sp=0xe0ff6d30, psr=0x41400ac2, context=0
Nov 16 17:51:11 sunserv unix: g1-g7: 1, f745cab8, 0, 0, 0, 1, e0ff6ec0
Nov 16 17:51:11 sunserv unix: Begin traceback... sp = e0ff6d30

Nov 16 17:51:11 sunserv unix:  args=e01c4cfc 14032 f7f74048 414000e3 f745cb0c 0

Nov 16 17:51:11 sunserv unix:  args=e01c4cfc e01d53b4 0 0 0 0

Nov 16 17:51:11 sunserv unix:  args=0 fffffffe 10000 f7ae3ebc 0 e01d53b4

Nov 16 17:51:11 sunserv unix:  args=0 0 0 0 0 0
Nov 16 17:51:11 sunserv unix: End traceback...
Nov 16 17:51:11 sunserv unix: panic[cpu1]/thread=0xe0ff6ec0: Memory address alignment

Nov 16 17:59:43 sunserv unix: BAD TRAP: cpu_id=0 type=7 <Memory address alignment> addr=0 rw=0 rp=e0eabce4
Nov 16 18:38:35 sunserv unix: BAD TRAP: cpu_id=1 type=7 <Memory address alignment> addr=0 rw=0 rp=e0ff6ce4
Nov 16 18:49:35 sunserv unix: BAD TRAP: cpu_id=1 type=7 <Memory address alignment> addr=0 rw=0 rp=e0ff6ce4

The address 'rp' is always either e0ff6ce4 or e0eabce4.

If you have ANY suggestion where to look for the reason of the panics,
please help us!! Please mail me - this SC2000 is our news server...

Thank you in advance,
Jozsef Kadlecsik
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