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Make sure interrupts are disabled before jumping to a resume point, to prevent

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races.
This commit is contained in:
mycroft 1996-01-07 02:07:07 +00:00
parent f149f4f6f1
commit 3afeb8d6b0
1 changed files with 2 additions and 1 deletions
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3
sys/arch/i386/isa/icu.s
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@ -1,4 +1,4 @@
/* $NetBSD: icu.s,v 1.43 1995/10/11 04:20:31 mycroft Exp $ */
/* $NetBSD: icu.s,v 1.44 1996/01/07 02:07:07 mycroft Exp $ */
/*-
* Copyright (c) 1993, 1994, 1995 Charles M. Hannum. All rights reserved.
@ -103,6 +103,7 @@ IDTVEC(doreti)
bsfl %eax,%eax # slow, but not worth optimizing
btrl %eax,_ipending
jnc 1b # some intr cleared the in-memory bit
cli
jmp *_Xresume(,%eax,4)
2: /* Check for ASTs on exit to user mode. */
cli