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From: "agentzh at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/31054] New: non-system-wide perf event probes should
 not use work queues for registration
Date: Sat, 11 Nov 2023 08:19:31 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31054

            Bug ID: 31054
           Summary: non-system-wide perf event probes should not use work
                    queues for registration
           Product: systemtap
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: agentzh at gmail dot com
  Target Milestone: ---

The non-system-wide task-finder-based perf event probes do not have the
limitation of always requiring SYS_CAP_ADMIN like the system-wide ones. So
avoiding the work queue thing for this case is a nice-to-have optimization.

Getting rid of work queue in this case also make it easier if we want to
support resolving task executable file paths in another mount namespace in =
the
future (otherwise the current task context would be kworker instead of
stapio/staprun).

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