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[Bug testsuite/5014] New: pmap_agg_overflow testcase fails.
- From: "srinivasa at in dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 10 Sep 2007 09:28:40 -0000
- Subject: [Bug testsuite/5014] New: pmap_agg_overflow testcase fails.
- Reply-to: sourceware-bugzilla at sourceware dot org
My environment is Systemtap-20070908 snapshot,elfutils-0.128 and kernel-2.6.23-rc5.
pmap_agg_overflow fails with following error message.
==================================================================
Running
/home/systemtap/tmp/stap_testing_200709100545/src/testsuite/systemtap.maps/pmap_agg_overflow.exp
...
ERROR: Array overflow, check MAXMAPENTRIES near identifier 'stat' at
/home/systemtap/tmp/stap_testing_200709100545/src/testsuite/systemtap.maps/pmap_agg_overflow.stp:17:5^M
ERROR: Array overflow, check MAXMAPENTRIES near identifier 'stat' at
/home/systemtap/tmp/stap_testing_200709100545/src/testsuite/systemtap.maps/pmap_agg_overflow.stp:17:5^M
ERROR: Array overflow, check MAXMAPENTRIES near identifier 'stat' at
/home/systemtap/tmp/stap_testing_200709100545/src/testsuite/systemtap.maps/pmap_agg_overflow.stp:17:5^M
ERROR: Array overflow, check MAXMAPENTRIES near identifier 'stat' at
/home/systemtap/tmp/stap_testing_200709100545/src/testsuite/systemtap.maps/pmap_agg_overflow.stp:17:5^M
WARNING: Number of errors: 4, skipped probes: 0^M
FAIL: pmap_agg_overflow (4)
testcase
/home/systemtap/tmp/stap_testing_200709100545/src/testsuite/systemtap.maps/pmap_agg_overflow.exp
completed in 11 seconds
=================================================
Looks like "stat" array is getting overflowed on SMP(8-way) systems and thats
the reason for failure.
===================
probe kernel.function("scheduler_tick") {
i = ++count
if (i >= max_count) exit()
stat[i] <<< i
}
=========================
--
Summary: pmap_agg_overflow testcase fails.
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=5014
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