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linux-2.6/arch/x86
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Mike Galbraith 4c6b8b4d62 x86: fix: s2ram + P4 + tsc = annoyance 
s2ram recently became useful here, except for the kernel's annoying
habit of disabling my P4's perfectly good TSC.

[  107.894470] CPU 1 is now offline
[  107.894474] SMP alternatives: switching to UP code
[  107.895832] CPU0 attaching sched-domain:
[  107.895836]  domain 0: span 1
[  107.895838]   groups: 1
[  107.896097] CPU1 is down
[    3.726156] Intel machine check architecture supported.
[    3.726165] Intel machine check reporting enabled on CPU#0.
[    3.726167] CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
[    3.726170] CPU0: Thermal monitoring enabled
[    3.726175] Back to C!
[    3.726708] Force enabled HPET at resume
[    3.726775] Enabling non-boot CPUs ...
[    3.727049] CPU0 attaching NULL sched-domain.
[    3.727165] SMP alternatives: switching to SMP code
[    3.727858] Booting processor 1/1 eip 3000
[    3.727862] CPU 1 irqstacks, hard=b042f000 soft=b042d000
[    3.738173] Initializing CPU#1
[    3.798912] Calibrating delay using timer specific routine.. 5986.12 BogoMIPS (lpj=2993061)
[    3.798920] CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 00004400 00000000 00000000 00000000
[    3.798931] CPU: Trace cache: 12K uops, L1 D cache: 8K
[    3.798934] CPU: L2 cache: 512K
[    3.798936] CPU: Physical Processor ID: 0
[    3.798938] CPU: After all inits, caps: bfebfbff 00000000 00000000 0000b080 00004400 00000000 00000000 00000000
[    3.798946] Intel machine check architecture supported.
[    3.798952] Intel machine check reporting enabled on CPU#1.
[    3.798955] CPU1: Intel P4/Xeon Extended MCE MSRs (12) available
[    3.798959] CPU1: Thermal monitoring enabled
[    3.799161] CPU1: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 09
[    3.799187] checking TSC synchronization [CPU#0 -> CPU#1]:
[    3.819181] Measured 63588552840 cycles TSC warp between CPUs, turning off TSC clock.
[    3.819184] Marking TSC unstable due to: check_tsc_sync_source failed.

If check_tsc_warp() is called after initial boot, and the TSC has in the
meantime been set (BIOS, user, silicon, elves) to a value lower than the
last stored/stale value, we blame the TSC.  Reset to pristine condition
after every test.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
 		2008-01-30 13:30:04 +01:00
..
boot x86 setup: don't recalculate ss:esp unless really necessary 2007-11-28 18:17:17 -08:00
configs x86 gart: rename CONFIG_IOMMU to CONFIG_GART_IOMMU 2007-10-30 00:22:22 +01:00
crypto [CRYPTO] twofish: Merge common glue code 2008-01-14 17:07:57 +11:00
ia32 x86 - 32-bit ptrace emulation mishandles 6th arg 2007-11-10 04:30:36 +01:00
kernel x86: fix: s2ram + P4 + tsc = annoyance 2008-01-30 13:30:04 +01:00
lguest lguest: prevent VISWS or VOYAGER randconfigs 2007-11-29 09:24:55 -08:00
lib x86: disable preemption in delay_tsc() 2007-11-14 18:45:44 -08:00
mach-default spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
mach-es7000 i386: es7000 minor cleanups 2007-10-17 20:16:15 +02:00
mach-generic spelling fixes: arch/i386/ 2007-10-20 01:13:56 +02:00
mach-visws [x86] remove uses of magic macros for boot_params access 2007-10-16 17:38:31 -07:00
mach-voyager x86: fix smp init sections 2007-11-17 16:27:00 +01:00
math-emu kbuild: fix up CFLAGS usage 2007-10-14 21:49:42 +02:00
mm x86: fix boot crash on HIGHMEM4G && SPARSEMEM 2008-01-15 16:44:37 +01:00
oprofile Driver core: change sysdev classes to use dynamic kobject names 2008-01-24 20:40:40 -08:00
pci Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86 2007-11-26 19:41:28 -08:00
power i386: move power 2007-10-11 11:16:34 +02:00
vdso x86: ignore the sys_getcpu() tcache parameter 2007-11-17 16:27:00 +01:00
video i386: move video 2007-10-11 11:16:56 +02:00
xen xen: disable vcpu_info placement for now 2008-01-23 18:04:54 -08:00
Kconfig Tiny clean-up of OPROFILE/KPROBES configuration 2007-12-06 09:41:12 -08:00
Kconfig.cpu x86: arch/x86/Kconfig.cpu unification 2007-11-12 21:02:19 +01:00
Kconfig.debug remove the dead X86_REMOTE_DEBUG option 2007-10-30 00:22:22 +01:00
Makefile x86: correctly set UTS_MACHINE for "make ARCH=x86" 2007-11-26 17:38:53 -08:00
Makefile_32 x86: fix make mrproper 2008-01-30 13:30:04 +01:00
Makefile_32.cpu x86: move i386 and x86_64 Makefiles to arch/x86 2007-10-25 22:27:34 +02:00
Makefile_64 x86: fix make mrproper 2008-01-30 13:30:04 +01:00