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Fix bug that trashed the SPT if any copy* function were used before 

the first swtch().
This commit is contained in:
ragge 2000-08-02 12:13:22 +00:00
parent 559af6df3c
commit cf62d07e82
1 changed files with 2 additions and 1 deletions
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3
sys/arch/vax/vax/subr.s
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@ -1,4 +1,4 @@
/* $NetBSD: subr.s,v 1.51 2000/07/19 18:15:03 matt Exp $ */
/* $NetBSD: subr.s,v 1.52 2000/08/02 12:13:22 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
@ -115,6 +115,7 @@ to: movw $0xfff,_C_LABEL(panic) # Save all regs in panic
addl3 $USPACE,_C_LABEL(proc0paddr),r0 # Get kernel stack top
mtpr r0,$PR_KSP # put in IPR KSP
movl r0,_C_LABEL(Sysmap) # SPT start addr after KSP
movl _C_LABEL(proc0paddr),r0 # get PCB virtual address
movab IFTRAP(r0),4(r0) # Save trap address in ESP
mtpr 4(r0),$PR_ESP # Put it in ESP also