[ oprofile-Bugs-964097 ] handling events with event code 0x00 fails

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Bugs item #964097, was opened at 2004-06-01 00:48
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: handling events with event code 0x00 fails

Initial Comment:
Oprofile uses the event code parameter to check whether
an event has been set up for monitoring. When the event
code is used as a boolean to check whether the event is
enabled, the code cannot handle events that has an
event code of 0x00. This is true for at least the
BACK_END_BUBBLE event on the itanium 2 platform.

Quote John Levon:
"The problem is this code:

    190         for (ii = 0 ; ii < op_nr_counters ; ++ii) {
    191                 if (sysctl.ctr[ii].event) {

We need a different way to identify an event has been set."
That code is in module/ia64/op_pmu.c



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