* [Bug testsuite/4696] New: profile.exp fails with "probe overhead exceeded threshold" error message
@ 2007-06-25 8:50 srinivasa at in dot ibm dot com
2008-03-18 2:16 ` [Bug testsuite/4696] " fche at redhat dot com
2008-04-14 16:00 ` ankita at in dot ibm dot com
0 siblings, 2 replies; 3+ messages in thread
From: srinivasa at in dot ibm dot com @ 2007-06-25 8:50 UTC (permalink / raw)
To: systemtap
My environment is Systemtap-20070623 snapshot,elfutils-0.125 and kernel-2.6.22-rc5.
When I executed this week tests, I got this error message on execution of
profile.exp. Error message tells that system has spent more than
STP_OVERLOAD_THRESHOLD cycles of time on this probe.
=================================
Running
/home/systemtap/tmp/stap_testing_200706250605/src/testsuite/systemtap.samples/profile.exp
...
ERROR: probe overhead exceeded threshold^M
WARNING: Number of errors: 1, skipped probes: 0^M
FAIL: profile
testcase
/home/systemtap/tmp/stap_testing_200706250605/src/testsuite/systemtap.samples/profile.exp
completed in 15 seconds
===============================
I tried to reexucute the same test individually but problem didn't get
reproduced. Is some race involved with this??
--
Summary: profile.exp fails with "probe overhead exceeded
threshold" error message
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: testsuite
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: srinivasa at in dot ibm dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=4696
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* [Bug testsuite/4696] profile.exp fails with "probe overhead exceeded threshold" error message
2007-06-25 8:50 [Bug testsuite/4696] New: profile.exp fails with "probe overhead exceeded threshold" error message srinivasa at in dot ibm dot com
@ 2008-03-18 2:16 ` fche at redhat dot com
2008-04-14 16:00 ` ankita at in dot ibm dot com
1 sibling, 0 replies; 3+ messages in thread
From: fche at redhat dot com @ 2008-03-18 2:16 UTC (permalink / raw)
To: systemtap
------- Additional Comments From fche at redhat dot com 2008-03-18 02:15 -------
I see no dejazilla entries, and recall seeing no recent reports on the mailing
list, of this test failing. Let's reopen if it reoccurs.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WORKSFORME
http://sourceware.org/bugzilla/show_bug.cgi?id=4696
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* [Bug testsuite/4696] profile.exp fails with "probe overhead exceeded threshold" error message
2007-06-25 8:50 [Bug testsuite/4696] New: profile.exp fails with "probe overhead exceeded threshold" error message srinivasa at in dot ibm dot com
2008-03-18 2:16 ` [Bug testsuite/4696] " fche at redhat dot com
@ 2008-04-14 16:00 ` ankita at in dot ibm dot com
1 sibling, 0 replies; 3+ messages in thread
From: ankita at in dot ibm dot com @ 2008-04-14 16:00 UTC (permalink / raw)
To: systemtap
------- Additional Comments From ankita at in dot ibm dot com 2008-04-14 12:44 -------
Systemtap version am using: Systemtap-20070411 (Latest April build)
elfutils-0.131 kernel: 2.6.24.4-rt4. I am seeing the following errors:
ERROR: probe overhead exceeded threshold
WARNING: Number of errors: 1, skipped probes: 10
As a workaround, I am now invoking the script using the following cmdline:
#stap -vvv xyz.stp -D MAXTRYLOCK=1000 -D MAXSKIPPED=40000 -D TRYLOCKDELAY=10000
Note that if TRYOCKDELAY is removed from the cmdline, the stap still throws the
error.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=4696
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2007-06-25 8:50 [Bug testsuite/4696] New: profile.exp fails with "probe overhead exceeded threshold" error message srinivasa at in dot ibm dot com
2008-03-18 2:16 ` [Bug testsuite/4696] " fche at redhat dot com
2008-04-14 16:00 ` ankita at in dot ibm dot com
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