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[Bug tapsets/12785] New: systemd-managed tasks not visible to process probes on fedora 15
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Thu, 19 May 2011 13:23:31 +0000
- Subject: [Bug tapsets/12785] New: systemd-managed tasks not visible to process probes on fedora 15
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=12785
Summary: systemd-managed tasks not visible to process probes on
fedora 15
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: tapsets
AssignedTo: systemtap@sourceware.org
ReportedBy: fche@redhat.com
CC: dsmith@redhat.com
Due to stap commit #c796d81, stap's task_finder refuses to attach to pid=1.
This is a problem because on fedora 15, systemd hogs pid=1, and forks
service daemons, which renders them invisible to stap probing.
We should remove the pid <= 1 tests from task-finder unless a good reason
for them is found. mjw notes that linux commit 00cd5c37afd5f431ac1 enabled
ptrace on pid=1 some years ago.
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