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| author | Ingo Molnar <mingo@elte.hu> | 2009-04-15 23:15:14 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-15 23:15:14 +0200 |
| commit | d45b41ae8da0f54aec0eebcc6f893ba5f22a1e8e (patch) | |
| tree | 02cb1631f336babe2c8158be17fb0d73831a0ee1 /arch/x86 | |
| parent | 6cececfcece2b072d29886ed7140495f3af17153 (diff) | |
| download | lwn-d45b41ae8da0f54aec0eebcc6f893ba5f22a1e8e.tar.gz lwn-d45b41ae8da0f54aec0eebcc6f893ba5f22a1e8e.zip | |
x86: disable X86_PTRACE_BTS for now
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>
Diffstat (limited to 'arch/x86')
| -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 924e156a85ab..8130334329c0 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -506,6 +506,7 @@ 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. |