Messages in this thread |  | | Date | Fri, 1 Nov 2013 09:56:54 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH -tip v2 2/3] [BUGFIX] kprobes/x86: Prohibit probing on debug_stack_* |
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On Fri, 01 Nov 2013 11:25:34 +0000 Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> wrote:
> Prohibit probing on debug_stack_reset and debug_stack_set_zero. > Since the both functions are called from TRACE_IRQS_ON/OFF_DEBUG > macros which run in int3 ist entry, probing it may cause a soft > lockup. > > This happens when the kernel built with CONFIG_DYNAMIC_FTRACE=y > and CONFIG_TRACE_IRQFLAGS=y. > > Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: "H. Peter Anvin" <hpa@zytor.com> > Cc: Borislav Petkov <bp@suse.de> > Cc: Fenghua Yu <fenghua.yu@intel.com> > Cc: Seiji Aguchi <seiji.aguchi@hds.com> > ---
Acked-by: Steven Rostedt <rostedt@goodmis.org>
-- Steve
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