re: Er, don't try this at home

[matthew green <mrg%eterna.com.au@localhost>]

   Just FYI, I showed the paniced kernel to MRG who passed it down the 
   line, the suspect is altavec.  (But it shouldn't panic the kernel anyway :-)


charles said that trap was maybe altivec, but in any case, it is a
user trap and it shouldn't cause a kernel panic in any case.  someone
should try this (untested) patch:


Index: trap.c
===================================================================
RCS file: /cvsroot/syssrc/sys/arch/powerpc/powerpc/trap.c,v
retrieving revision 1.53
diff -p -r1.53 trap.c
*** trap.c      2001/10/18 01:33:48     1.53
--- trap.c      2001/11/08 04:35:56
*************** syscall_bad:
*** 409,414 ****
--- 409,420 ----
        }
  
        default:
+               if (type & EXC_USER) {
+ #ifdef DIAGNOSTIC
+                       printf("user trap type %x at %x\n", type, frame->srr0);
+ #endif
+                       break;
+               }
  brain_damage:
                printf("trap type %x at %x\n", type, frame->srr0);
  brain_damage2: