Re: [PATCH ftrace.git] Immedate Values Optimized Jump Fix

From: Ingo Molnar
Date: Fri Jul 18 2008 - 12:15:57 EST



* Mathieu Desnoyers <compudj@xxxxxxxxxxxxxxxxxx> wrote:

> Hi Ingo,
>
> This fix would apply to the ftrace tree which contains the jump-based
> immediate values. I don't know if this tree is still under active
> development, but I guess that it wouldn't hurt to fix it.
>
> Caused a kernel OOPS when loading the tracepoint probes once in a
> while on a 8-way x86_64.

We've still got tip/tracing/immediates, with these commits from you:

$ git-log-line linus.. arch/x86/kernel/immediate.c
ee563d6: immediate values: jump liveliness
e26875a: Immediate Values - Jump
3fc8d03: Immediate Values - x86 Optimization NMI and MCE support

... but the topic is stalled right now, due to hpa having had
objections. Have those concerns been resolved? (Peter Cc:-ed)

i'd have applied this fix, but it does not apply. The first chunk seems
already be present (in a different form), the second chunk looks much
different.

Ingo
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