linux/arch/x86
Rusty Russell 3c2047cd32 x86: if we cannot calibrate the TSC, we panic.
The current tsc_init() clears the TSC feature bit if the TSC khz
cannot be calculated, causing us to panic in
arch/x86/kernel/cpu/bugs.c check_config().  We should simply mark it
unstable.

Frankly, someone should take an axe to this code.  mark_tsc_unstable()
not only marks it unstable, but sets tsc_enabled to 0, which seems
redundant but is actually important here because means it won't be
used by sched_clock() either.  Perhaps a tristate enum "UNUSABLE,
UNSTABLE, OK" would be clearer, and separate mark_tsc_unstable() and
mark_tsc_broken() functions?

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:52 +02:00
..
boot x86: coding style fixes to arch/x86/boot/cpucheck.c 2008-04-17 17:40:50 +02:00
configs x86, core: remove CONFIG_FORCED_INLINING 2008-02-09 23:24:09 +01:00
crypto [CRYPTO] twofish: Merge common glue code 2008-01-14 17:07:57 +11:00
ia32 x86: reducing debuginfo size by removing unneeded includes 2008-04-17 17:40:46 +02:00
kernel x86: if we cannot calibrate the TSC, we panic. 2008-04-17 17:40:52 +02:00
kvm KVM: MMU: Fix memory leak on guest demand faults 2008-03-25 10:22:17 +02:00
lguest lguest: comment documentation update. 2008-03-28 11:05:54 +11:00
lib x86: coding style fixes to arch/x86/lib/usercopy_32.c 2008-04-17 17:40:51 +02:00
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 x86: coding style fixes to arch/x86/mach-generic/bigsmp.c 2008-04-17 17:40:48 +02:00
mach-rdc321x x86, rdc321x: remove watchdog file 2008-04-17 17:40:50 +02:00
mach-visws x86/visws: fix printk format warnings 2008-03-21 17:06:15 +01:00
mach-voyager calibrate_delay() must be __cpuinit 2008-02-06 10:41:08 -08:00
math-emu x86: arch/x86/math-emu/errors.c: fix printk warnings 2008-01-30 13:32:13 +01:00
mm x86: debug pmd_bad() 2008-04-17 17:40:52 +02:00
oprofile x86: coding style fixes to arch/x86/oprofile/nmi_timer_int.c 2008-04-17 17:40:50 +02:00
pci x86, pci: fix off-by-one errors in some pirq warnings 2008-04-17 17:40:45 +02:00
power x86: coding style fixes to arch/x86/power/cpu_32.c 2008-04-17 17:40:50 +02:00
vdso x86 vDSO: don't map 32-bit vdso when disabled 2008-04-17 17:40:45 +02:00
video i386: move video 2007-10-11 11:16:56 +02:00
xen xen: use iret instruction all the time 2008-04-17 17:40:51 +02:00
Kconfig x86: fix recursive dependencies 2008-04-17 17:40:51 +02:00
Kconfig.cpu x86: a P4 is a P6 not an i486 2008-03-04 11:55:34 -08:00
Kconfig.debug x86: add gbpages switches 2008-04-17 17:40:45 +02:00
Makefile x86: introduce kernel/head32.c 2008-04-17 17:40:49 +02:00
Makefile_32.cpu x86: move i386 and x86_64 Makefiles to arch/x86 2007-10-25 22:27:34 +02:00