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Subject: [Bug runtime/12164] stap script causing ptrace to error with "Device or resource busy"
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http://sourceware.org/bugzilla/show_bug.cgi?id=12164

Josh Stone <jistone at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
         AssignedTo|systemtap at sources dot    |jistone at redhat dot com
                   |redhat.com                  |

--- Comment #6 from Josh Stone <jistone at redhat dot com> 2010-11-11 21:34:07 UTC ---
(In reply to comment #5)
> (In reply to comment #3)
> > I bisected the bug down to b642c901a918a92fdd6b1167ed02dfe4c50cdd3e:
> > 
> >     Add kprobe user probe semaphore handling.
> 
> So, the reason this commit came up is that it started enabling task_finder when
> kprobes are used.  We should probably try to narrow this to just for
> SDT-related kprobes, but that's not really the issue here.

Added commit 62f52bb "PR12164: Emit kprobes-sdt goo only when needed"

As for the underlying utrace-ptrace problem, we're unlikely to see any action
on it, since this has only been seen on an outdated F12 kernel.  (And F12 is
nearly EOL anyway.)  I'll dig a little in the history to see if there's
something you could backport, but otherwise I'll consider this PR fixed by the
commit above.

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