Subject: Re: 1.4L doesn't like my 5000/133
To: None <jonathan@DSG.Stanford.EDU>
From: maximum entropy <entropy@tardis.bernstein.com>
List: port-pmax
Date: 10/21/1999 01:12:41
>Date: Wed, 20 Oct 1999 18:16:57 -0700
>From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
>
>Okay. Then -current is probably busted on pmaxes.  It's very hard to
>figure out where from the info you posted; it'd be more helpful if you
>could configure DDB and make sure ddb.onpanic is set.
>
>then, when the new kernel panicks, type 
>	trace

OK...here are two traces.  The first panic was caused by running a
"make build" which seemed to be running OK for a while, until I logged
in remotely using ssh.  The syslog message generated by ssh killed
it.

trap: TLB miss (load or instr. fetch) in kernel mode
status=0xfc34, cause=0x30000008, epc=0x8013b4c8, vaddr=0x100
pid=106 cmd=syslogd usp=0x7fffeca8 ksp=0xc2830e90
Stopped in syslogd at   trap+0x2f4:     lw      a2,0(v1)
db> trace
trap+2f4 (ff3c,4,10004ffc,200db108) ra 80030f1c sz 72
mips1_UserGenException+d4 (ff3c,4,10004ffc,200db108) ra 200db108 sz 0
PC 0x200db108: not in kernel space
_DYNAMIC_LINK+200db108 (ff3c,4,10004ffc,200db108) ra 0 sz 0
User-level: pid 106
db> reboot
syncing disks... 38 38 34 23 10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 giving up
rebooting...

The next one was caused by running the system with PARANOIADIAG option
set in the kernel, and running "startx".  As I said before, I don't
know that this is a bug.  It may be unrelated to the problem above.

panic: pmap_enter: prot
Stopped in Xpmax at     cpu_Debugger+0x4:       jr      ra
db> trace
cpu_Debugger+4 (100,0,0,0) ra 80064548 sz 0
panic+8c (80163aac,0,0,0) ra 80139264 sz 32
pmap_enter+d0 (80163aac,0,0,0) ra 801243ac sz 80
8012425c+150 (c2858e10,0,0,1) ra 80125174 sz 72
uvm_fault+72c (80f3b5b8,201e2000,0,2) ra 8013b6a4 sz 280
trap+4d0 (ff3c,30000004,201e2068,412d94) ra 80030f1c sz 72
mips1_UserGenException+d4 (ff3c,30000004,201e2068,412d94) ra 412d94 sz 0
PC 0x412d94: not in kernel space
_DYNAMIC_LINK+412d94 (ff3c,30000004,201e2068,412d94) ra 0 sz 0
User-level: pid 211
db> reboot
syncing disks... 15 14 11 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 giving up
rebooting...

Let me know if you need any more information.

Cheers,
entropy

--
entropy