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[SCM] systemtap: system-wide probe/trace tool branch, dsmith/task_finder2, updated. release-1.6-374-geb03278


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The branch, dsmith/task_finder2 has been updated
       via  eb032788e69844946b62c75ab6389ae937b711f6 (commit)
       via  54e7e8f0122569091f780fc0f1acc1520b09f1c4 (commit)
       via  6ca28847b794e03744b3fc425a5f3e07d49154b4 (commit)
       via  93ee09d508e10d054465c63553b30539d70e0c4b (commit)
       via  5ffdc7b036760ef6ebb10e4c0ddf38b267b16e03 (commit)
      from  40b8ed4d675c4b7cfd1f25499506e42795d0e38f (commit)

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- Log -----------------------------------------------------------------
commit eb032788e69844946b62c75ab6389ae937b711f6
Author: David Smith <dsmith@redhat.com>
Date:   Thu Oct 27 11:09:05 2011 -0500

    Avoid "sleeping function called from invalid context" kernel errors.
    
    * runtime/stp_utrace.c (utrace_task_alloc): Change memory allocation flags
      to avoid waiting.
      (utrace_attach_task): Ditto.
      (finish_callback): Remove call to might_sleep(), since tracepoint
      handlers (and now utrace handlers) can't sleep.

commit 54e7e8f0122569091f780fc0f1acc1520b09f1c4
Author: David Smith <dsmith@redhat.com>
Date:   Thu Oct 27 11:06:14 2011 -0500

    More PR13083 fixes to avoid sleeping in the task_finder (ported).
    
    * runtime/task_finder2.c (__stp_get_mm_path): Call down_read_trylock()
      instead of down_read() to avoid the possibility of sleeping.
      (stap_start_task_finder): Call task_lock() to make sure a task's mm
      doesn't go away while we're looking at it.

commit 6ca28847b794e03744b3fc425a5f3e07d49154b4
Merge: 40b8ed4 93ee09d
Author: David Smith <dsmith@redhat.com>
Date:   Thu Oct 27 10:27:24 2011 -0500

    Merge branch 'master' of /es/scratch/dsmith/systemtap/src into dsmith/task_finder2

-----------------------------------------------------------------------

Summary of changes:
 elaborate.cxx                      |    4 +-
 runtime/addr-map.c                 |    6 ++--
 runtime/print.c                    |    6 ++--
 runtime/runtime.h                  |   25 ++++++++++-------
 runtime/staprun/staprun.c          |   53 +++++++++++++++++++-----------------
 runtime/stp_utrace.c               |   13 +++-----
 runtime/task_finder.c              |   30 +++++++++++++-------
 runtime/task_finder2.c             |   26 ++++++++++++-----
 runtime/transport/control.c        |   14 +++++++++
 runtime/transport/transport.c      |   21 +++++---------
 runtime/transport/transport.h      |    1 -
 runtime/transport/transport_msgs.h |    9 ++++++
 translate.cxx                      |   17 ++++++++++-
 13 files changed, 139 insertions(+), 86 deletions(-)


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