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[Bug runtime/14223] perf probes fail if not root
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Tue, 12 Jun 2012 15:37:08 +0000
- Subject: [Bug runtime/14223] perf probes fail if not root
- Auto-submitted: auto-generated
- References: <bug-14223-6586@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=14223
Frank Ch. Eigler <fche at redhat dot com> changed:
What |Removed |Added
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CC| |fche at redhat dot com
--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> 2012-06-12 15:37:08 UTC ---
Wacky. It's strange for a deeper-down kernel api to enforce authorization, as
opposed to a close-to-userspace syscall handler, but alas. We should
investigate whether this part of the module runs during a callback caused by
(setuid-root) staprun vs. (unprivileged) stapio that staprun execs. If the
latter, we may be able to "fix" it by having some probe registration occur
earlier, perhaps with an additional transport message.
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