diff options
| author | Jan Kratochvil <jan.kratochvil@redhat.com> | 2008-07-22 08:00:47 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-22 08:16:37 -0400 |
| commit | d536b1f86591fb081c7a56eab04e711eb4dab951 (patch) | |
| tree | 1b9a1c248d773af930347e08d292aa23a71729ed /arch/x86 | |
| parent | 77be1fabd024b37423d12f832b1fbdb95dbdf494 (diff) | |
x86: fix crash due to missing debugctlmsr on AMD K6-3
currently if you use PTRACE_SINGLEBLOCK on AMD K6-3 (i586) it will crash.
Kernel now wrongly assumes existing DEBUGCTLMSR MSR register there.
Removed the assumption also for some other non-K6 CPUs but I am not sure there
(but it can only bring small inefficiency there if my assumption is wrong).
Based on info from Roland McGrath, Chuck Ebbert and Mikulas Patocka.
More info at:
https://bugzilla.redhat.com/show_bug.cgi?id=456175
Signed-off-by: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Kconfig.cpu | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 54b8c02c71e..2c518fbc52e 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu | |||
| @@ -414,4 +414,4 @@ config X86_MINIMUM_CPU_FAMILY | |||
| 414 | 414 | ||
| 415 | config X86_DEBUGCTLMSR | 415 | config X86_DEBUGCTLMSR |
| 416 | def_bool y | 416 | def_bool y |
| 417 | depends on !(M586MMX || M586TSC || M586 || M486 || M386) | 417 | depends on !(MK6 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486 || M386) |