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RE: [UPDATE] Linux Kernel Event Trace tool(LKET)
- From: "Stone, Joshua I" <joshua dot i dot stone at intel dot com>
- To: "Li Guanglei" <guanglei at cn dot ibm dot com>
- Cc: <systemtap at sourceware dot org>
- Date: Thu, 1 Jun 2006 17:44:26 -0700
- Subject: RE: [UPDATE] Linux Kernel Event Trace tool(LKET)
On Sunday, May 28, 2006 11:27 PM, Li Guanglei wrote:
> Li Guanglei ??:
>>
>>
>> I don't have a x86_64 at hand. I tried
>> __switch_to(scheduler.ctxswitch in src/tapset/schedule.stp) and it
>> will cause kernel panic. I will take a further look at this and will
>> open a bug for this if needed.
>
> I tested again with 2.6.16.16 & 2.6.16-1.2211_FC6 on x86, _switch_to
> won't cause kernel panic any more. So I think this bug has been fixed
> in latest kernel.
Probes on __switch_to are disallowed on x86_64 -- see bug #2068.
http://sources.redhat.com/bugzilla/show_bug.cgi?id=2068
Josh