From: "Stone, Joshua I" <joshua.i.stone@intel.com>
To: "Perry Cheng" <perryche@us.ibm.com>, <systemtap@sourceware.org>
Subject: RE: Instrumenting context switches
Date: Thu, 30 Nov 2006 15:31:00 -0000 [thread overview]
Message-ID: <C56DB814FAA30B418C75310AC4BB279DFFA2F1@scsmsx413.amr.corp.intel.com> (raw)
On Wednesday, November 29, 2006 3:26 PM, Perry Cheng wrote:
> Using some example code, I tried to instrument context switching by
> adding a probe to the method __switch_to. Some documentation had
> suggested that certain versions of the systemtap could not handle
> instrumenting context_switch.
The problems with resolving the context_switch function have been fixed
for a while, but there's still sometimes issues accessing the parameters
of inline functions. See bugzilla #1155.
http://sources.redhat.com/bugzilla/show_bug.cgi?id=1155
Using __switch_to is not an option on all platforms -- on IA64 it is a
macro, and on x86_64 it is blacklisted (bz2086).
Josh
next reply other threads:[~2006-11-30 1:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-30 15:31 Stone, Joshua I [this message]
[not found] <OFBBDFEA36.CA571100-ON85257237.00006111-85257237.0000676B@mck.us.ray.com>
2006-12-01 3:14 ` Dave Sperry
[not found] <OFB78608CD.65116F14-ON85257236.0073959D-85257236.00738AAF@mck.us.ray.com>
2006-12-01 0:25 ` Dave Sperry
2006-12-01 3:12 ` Perry Cheng
-- strict thread matches above, loose matches on Subject: below --
2006-11-30 18:10 Stone, Joshua I
2006-11-30 1:35 Perry Cheng
2006-11-30 1:41 ` Frank Ch. Eigler
2006-11-30 18:22 ` Martin Hunt
2006-11-30 22:01 ` Perry Cheng
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