Thomas Gleixner e66485d747 x86-64: Disable local APIC timer use on AMD systems with C1E ... commit 3556ddfa92 titled [PATCH] x86-64: Disable local APIC timer use on AMD systems with C1E solves a problem with AMD dual core laptops e.g. HP nx6325 (Turion 64 X2) with C1E enabled: When both cores go into idle at the same time, then the system switches into C1E state, which is basically the same as C3. This stops the local apic timer. This was debugged right after the dyntick merge on i386 and despite the patch title it fixes only the 32 bit path. x86_64 is still missing this fix. It seems that mainline is not really affected by this issue, as the PIT is running and keeps jiffies incrementing, but that's just waiting for trouble. -mm suffers from this problem due to the x86_64 high resolution timer patches. This is a quick and dirty port of the i386 code to x86_64. I spent quite a time with Rafael to debug the -mm / hrt wreckage until someone pointed us to this. I really had forgotten that we debugged this half a year ago already. Sigh, is it just me or is there something yelling arch/x86 into my ear? Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-09-26 09:22:04 -07:00
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boot	x86_64: Early segment setup for VT	2007-08-11 15:58:13 -07:00
crypto	[CRYPTO] api: Get rid of flags argument to setkey	2006-09-21 11:41:02 +10:00
ia32	x86_64: Zero extend all registers after ptrace in 32bit entry path.	2007-09-21 09:52:07 -07:00
kernel	x86-64: Disable local APIC timer use on AMD systems with C1E	2007-09-26 09:22:04 -07:00
lib	Do not replace whole memcpy in apply alternatives	2007-08-12 01:42:37 -07:00
mm	x86-64: page faults from user mode are always user faults	2007-09-19 11:37:14 -07:00
oprofile	[PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu	2005-11-07 07:53:35 -08:00
pci	x86: Work around mmio config space quirk on AMD Fam10h	2007-08-11 15:58:12 -07:00
vdso	x86_64: Add missing mask operation to vdso	2007-09-12 09:28:06 -07:00
defconfig	PM: Fix dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION	2007-08-31 01:42:22 -07:00
Kconfig	Revert "x86_64: Quicklist support for x86_64"	2007-09-21 12:09:41 -07:00
Kconfig.debug	Allow DEBUG_RODATA and KPROBES to co-exist	2007-06-21 16:02:50 -07:00
Makefile	x86_64: Check for .cfi_rel_offset in CFI probe	2007-08-18 10:25:25 -07:00