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| author | Chuck Ebbert <76306.1226@compuserve.com> | 2006-06-25 05:46:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 10:00:55 -0700 |
| commit | caad3c2a15dfa2e0da8cf51a57c052372123483c (patch) | |
| tree | c9321da5eaa1e71c682aa6f598cff48e4c1406c1 /arch/i386 | |
| parent | 186989177e627c2571a3026d39ea1433e4ddc097 (diff) | |
| download | blackbird-obmc-linux-caad3c2a15dfa2e0da8cf51a57c052372123483c.tar.gz blackbird-obmc-linux-caad3c2a15dfa2e0da8cf51a57c052372123483c.zip | |
[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: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386')
| -rw-r--r-- | arch/i386/kernel/crash.c | 3 | ||||
| -rw-r--r-- | arch/i386/kernel/doublefault.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 2b0cfce24a61..21dc1bbb8067 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -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; } diff --git a/arch/i386/kernel/doublefault.c b/arch/i386/kernel/doublefault.c index 5edb1d379add..b4d14c2eb345 100644 --- a/arch/i386/kernel/doublefault.c +++ b/arch/i386/kernel/doublefault.c @@ -44,7 +44,8 @@ static void doublefault_fn(void) } } - for (;;) /* nothing */; + for (;;) + cpu_relax(); } struct tss_struct doublefault_tss __cacheline_aligned = { |
