diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-04-15 23:15:14 +0200 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2009-04-27 10:37:02 -0700 |
| commit | 0857bb06065b5c5a51d205c4c04ec1202e27d399 (patch) | |
| tree | 9646a6dddfbd0f98b3b30d4153903224e81e0f13 /arch | |
| parent | 43fce3f341cbe7c6d7a58699655b954bb4f7689c (diff) | |
x86: disable X86_PTRACE_BTS for now
upstream commit: d45b41ae8da0f54aec0eebcc6f893ba5f22a1e8e
Oleg Nesterov found a couple of races in the ptrace-bts code
and fixes are queued up for it but they did not get ready in time
for the merge window. We'll merge them in v2.6.31 - until then
mark the feature as CONFIG_BROKEN. There's no user-space yet
making use of this so it's not a big issue.
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
[chrisw: trivial 2.6.29 backport]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig.cpu | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index c98d52e8296..6ed3aca7dd4 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -523,6 +523,7 @@ config X86_PTRACE_BTS bool "Branch Trace Store" default y depends on X86_DEBUGCTLMSR + depends on BROKEN help This adds a ptrace interface to the hardware's branch trace store. |