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Add some small checks to avoid unwanted panic types.

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This commit is contained in:
ragge 1999-06-20 00:53:02 +00:00
parent 5ad2718e7c
commit 76b9763345
1 changed files with 4 additions and 3 deletions
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7
sys/arch/vax/vax/trap.c
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@ -1,4 +1,4 @@
/* $NetBSD: trap.c,v 1.44 1999/03/24 05:51:17 mrg Exp $ */
/* $NetBSD: trap.c,v 1.45 1999/06/20 00:53:02 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
* All rights reserved.
@ -171,7 +171,8 @@ if(faultdebug)printf("trap accflt type %lx, code %lx, pc %lx, psl %lx\n",
#endif
#ifdef DIAGNOSTIC
if (p == 0)
panic("trap: access fault without process");
panic("trap: access fault: addr %lx code %lx",
frame->pc, frame->code);
#endif
/*
* First check for ptefetch. Can only happen to pages
@ -228,7 +229,7 @@ ufault: if (rv == KERN_RESOURCE_SHORTAGE) {
break;
case T_PTELEN:
if (p->p_addr)
if (p && p->p_addr)
FAULTCHK;
panic("ptelen fault in system space: addr %lx pc %lx",
frame->code, frame->pc);