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[PATCH] i386: cpu_relax() in crash.c and doublefault.c

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Add cpu_relax() to infinite loops in crash.c and doublefault.c.  This is
the safest change.

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Chuck Ebbert 2006-06-25 05:46:53 -07:00 committed by Linus Torvalds
parent 186989177e
commit caad3c2a15
2 changed files with 4 additions and 2 deletions
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3
arch/i386/kernel/crash.c
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@ -114,7 +114,8 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu)
atomic_dec(&waiting_for_crash_ipi);
/* Assume hlt works */
halt();
for(;;);
for (;;)
cpu_relax();
return 1;
}

3
arch/i386/kernel/doublefault.c
View File

@ -44,7 +44,8 @@ static void doublefault_fn(void)
}
}
for (;;) /* nothing */;
for (;;)
cpu_relax();
}
struct tss_struct doublefault_tss __cacheline_aligned = {