[Bug 461252] [NEW] oprofile not working with timer interrupt?

[Dave Martin]

Public bug reported:

Binary package hint: oprofile

I'm trying to sanity check some spurious results obtained using the
(default) armv7 performance monitor counter configuration of oprofile on
armel, but the timer-only profiling mode doesn't seem to work for me: I
can load the oprofile module with the timer=1 argument and run opcontrol
as normal, but oprofiled complains that no events were specified.

However, it is not usual to specify events in timer-only mode, and
trying to do so causes errors in the opcontrol script.

See the attached shell transcript for an example of what happens.

ProblemType: Bug
Architecture: armel
Date: Mon Oct 26 16:55:56 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate armel+imx51 (20091021.1)
Package: oprofile 0.9.4+cvs20090629-2.1ubuntu2
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-105.14-imx51
SourcePackage: oprofile
Uname: Linux 2.6.31-105-imx51 armv7l

** Affects: oprofile (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug armel

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oprofile not working with timer interrupt?
https://bugs.launchpad.net/bugs/461252
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