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Commit caad3c2a authored by Chuck Ebbert's avatar Chuck Ebbert Committed by Linus Torvalds
Browse files

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



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

Signed-off-by: default avatarChuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 18698917

arch/i386/kernel/crash.c

+2 −1
Original line number Diff line number Diff line
@@ -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;

}

arch/i386/kernel/doublefault.c

+2 −1
Original line number Diff line number Diff line
@@ -44,7 +44,8 @@ static void doublefault_fn(void) 
		}

	}



	for (;;) /* nothing */;

	for (;;)

		cpu_relax();

}



struct tss_struct doublefault_tss __cacheline_aligned = {