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authorJan Kratochvil <jan.kratochvil@redhat.com>2008-07-22 08:00:47 -0400
committerIngo Molnar <mingo@elte.hu>2008-07-22 08:16:37 -0400
commitd536b1f86591fb081c7a56eab04e711eb4dab951 (patch)
tree1b9a1c248d773af930347e08d292aa23a71729ed /arch/x86/Kconfig.cpu
parent77be1fabd024b37423d12f832b1fbdb95dbdf494 (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/Kconfig.cpu')
-rw-r--r--arch/x86/Kconfig.cpu2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 54b8c02c71e6..2c518fbc52ec 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -414,4 +414,4 @@ config X86_MINIMUM_CPU_FAMILY
414 414
415config X86_DEBUGCTLMSR 415config 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)