[Bug tapsets/12785] New: systemd-managed tasks not visible to process probes on fedora 15

[fche at redhat dot com]

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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