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| author | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-08 15:04:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-08 15:04:46 -0800 |
| commit | fea5f1e19611d94fbf3905875a427c4cb959cd06 (patch) | |
| tree | 5a4c0584eea3ba74745e836e370fa1bbd0dacb02 /arch/x86_64/kernel/early-quirks.c | |
| parent | bf81b46482c0fa8ea638e409d39768ea92a6b0f0 (diff) | |
| download | op-kernel-dev-fea5f1e19611d94fbf3905875a427c4cb959cd06.zip op-kernel-dev-fea5f1e19611d94fbf3905875a427c4cb959cd06.tar.gz | |
Revert "[PATCH] x86-64: Try multiple timer variants in check_timer"
This reverts commit b026872601976f666bae77b609dc490d1834bf77, which has
been linked to several problem reports with IO-APIC and the timer.
Machines either don't boot because the timer doesn't happen, or we get
double timer interrupts because we end up double-routing the timer irq
through multiple interfaces.
See for example
http://lkml.org/lkml/2006/12/16/101
http://lkml.org/lkml/2007/1/3/9
http://bugzilla.kernel.org/show_bug.cgi?id=7789
about some of the discussion.
Patches to fix this cleanup exist (and have been confirmed to work fine
at least for some of the affected cases) and we'll revisit it for
2.6.21, but this late in the -rc series we're better off just reverting
the incomplete commit that caused the problems.
Suggested-by: Adrian Bunk <bunk@stusta.de>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Yinghai Lu <yinghai.lu@amd.com>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/early-quirks.c')
| -rw-r--r-- | arch/x86_64/kernel/early-quirks.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/early-quirks.c b/arch/x86_64/kernel/early-quirks.c index 829698f..49802f1 100644 --- a/arch/x86_64/kernel/early-quirks.c +++ b/arch/x86_64/kernel/early-quirks.c @@ -69,6 +69,11 @@ static void nvidia_bugs(void) static void ati_bugs(void) { + if (timer_over_8254 == 1) { + timer_over_8254 = 0; + printk(KERN_INFO + "ATI board detected. Disabling timer routing over 8254.\n"); + } } static void intel_bugs(void) |
