From: Jan Kratochvil Date: Tue, 22 Jul 2008 12:00:47 +0000 (+0200) Subject: x86: fix crash due to missing debugctlmsr on AMD K6-3 X-Git-Tag: v2.6.27-rc1~863^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d536b1f86591fb081c7a56eab04e711eb4dab951;p=pandora-kernel.git 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 Cc: Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed