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[Bug uprobes/16662] New: return probe breaks functionality of rsync
- From: "c.bezemer at tudelft dot nl" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Wed, 05 Mar 2014 15:22:59 +0000
- Subject: [Bug uprobes/16662] New: return probe breaks functionality of rsync
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=16662
Bug ID: 16662
Summary: return probe breaks functionality of rsync
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: uprobes
Assignee: systemtap at sourceware dot org
Reporter: c.bezemer at tudelft dot nl
When I try to run the following probe:
probe
process("/home/jenkins/workspace/test_systemtap_rsync_unittests/rsync/rsync").function("*")
?
{
printf("IN %s\n", probefunc());
}
probe
process("/home/jenkins/workspace/test_systemtap_rsync_unittests/rsync/rsync").function("*").return
{
printf("OUT %s\n", probefunc());
}
The functionality of rsync breaks if the return probe is enabled. When the
return probe is disabled, there is no problem.
dmesg contains '[3021183.636783] rsync[10263]: segfault at 7fffffffe000 ip
00007fffffffe000 sp 00007fff32f44130 error 14'
Kernel version: kernel 3.12-trunk-amd64
Systemtap version: 2.4/0.157
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