john stultz 3f4a0b917c [PATCH] i386 Time: Avoid PIT SMP lockups ... Avoid possible PIT livelock issues seen on SMP systems (and reported by Andi), by not allowing it as a clocksource on SMP boxes. However, since the PIT may no longer be present, we have to properly handle the cases where SMP systems have TSC skew and fall back from the TSC. Since the PIT isn't there, it would "fall back" to the TSC again. So this changes the jiffies rating to 1, and the TSC-bad rating value to 0. Thus you will get the following behavior priority on i386 systems: tsc [if present & stable] hpet [if present] cyclone [if present] acpi_pm [if present] pit [if UP] jiffies Rather then the current more complicated: tsc [if present & stable] hpet [if present] cyclone [if present] acpi_pm [if present] pit [if cpus < 4] tsc [if present & unstable] jiffies Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-10-17 08:18:42 -07:00
..
boot	[PATCH] Some config.h removals	2006-10-01 00:39:34 -07:00
crypto	[CRYPTO] api: Get rid of flags argument to setkey	2006-09-21 11:41:02 +10:00
kernel	[PATCH] i386 Time: Avoid PIT SMP lockups	2006-10-17 08:18:42 -07:00
lib	[PATCH] kernel-doc: fix function name in usercopy.c	2006-10-11 11:14:24 -07:00
mach-default	[PATCH] irq-flags: i386: Use the new IRQF_ constants	2006-07-02 13:58:47 -07:00
mach-es7000	[PATCH] Compilation fix for ES7000 when no ACPI is specified in config (i386)	2006-03-23 07:38:04 -08:00
mach-generic	[PATCH] i386: Replace i386 open-coded cmdline parsing with	2006-09-26 10:52:32 +02:00
mach-visws	IRQ: Maintain regs pointer globally rather than passing to IRQ handlers	2006-10-05 15:10:12 +01:00
mach-voyager	[VOYAGER] fix up ptregs removal mess	2006-10-12 22:25:03 -05:00
math-emu	[PATCH] i386: inline assembler: cleanup and encapsulate descriptor and task register management	2005-09-05 00:06:11 -07:00
mm	[PATCH] mm: use symbolic names instead of indices for zone initialisation	2006-10-11 11:14:14 -07:00
oprofile	[PATCH] oprofile: ppro: need to enable/disable all the counters	2006-09-29 09:18:11 -07:00
pci	[PATCH] i386/x86_64: FIX pci_enable_irq to set dev->irq to the irq number	2006-10-08 12:24:02 -07:00
power	[PATCH] Change the name of pagedir_nosave	2006-09-26 08:49:01 -07:00
defconfig	[PATCH] i386: Update defconfig	2006-10-05 18:47:21 +02:00
Kconfig	Attack of "the the"s in arch	2006-10-03 22:21:02 +02:00
Kconfig.cpu	[PATCH] uml: fix processor selection to exclude unsupported processors and features	2006-10-11 11:14:20 -07:00
Kconfig.debug	[PATCH] lockdep: irqtrace subsystem, i386 support	2006-07-03 15:27:03 -07:00
Makefile	[PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder	2006-09-26 10:52:41 +02:00
Makefile.cpu	[PATCH] x86-64: Use -mtune=generic for generic kernels	2006-03-25 09:10:52 -08:00