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SubjectRe: Re: [PATCH] tracing/kprobe: Recover old array if fails to enable kprobe
(2013/06/29 3:43), Oleg Nesterov wrote:
> On 06/28, Steven Rostedt wrote:
>> On Fri, 2013-06-28 at 16:27 +0200, Oleg Nesterov wrote:
>>> Ah, but this conflicts with the other changes I sent. They have
>>> your acks, and iiuc Steven is going to apply them.
>> I'll see if I can solve any conflicts. I need to get my -rt versions out
>> and start on the new 3.6 stable today. Then after that, I plan on going
>> though and getting all the tracing patches settled.
> Thanks!
>>> Besides, this fix is not complete afaics, we should also clear
>>> TP_FLAG_TRACE/PROFILE if __enable_trace_probe() fails.
> Yes.
> And I forgot to mention, until we fix the races we discuss in another
> thread, this WARN_ON() doesn't look right. So perhaps it would be
> really better to delay this change a bit.

Agreed, this fix is not a critical one. The racing problem of
dynamic events is what we have to solve at first.

Thank you!

IT Management Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory

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