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* [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-579-g5876002
@ 2011-12-12 15:09 mark
  0 siblings, 0 replies; only message in thread
From: mark @ 2011-12-12 15:09 UTC (permalink / raw)
  To: systemtap-cvs

This is an automated email from the git hooks/post-receive script. It was
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the project "systemtap: system-wide probe/trace tool".

The branch, master has been updated
       via  5876002191544908925353c6ea20a0335be7e703 (commit)
       via  262f75989148e759f76f16044677182a218bf680 (commit)
       via  ab86339871ab6e281cbb3c62ea9b1d5f6a53e1f4 (commit)
      from  64e807c2d576126a24ffb251fb4108f3940ece0b (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
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- Log -----------------------------------------------------------------
commit 5876002191544908925353c6ea20a0335be7e703
Merge: 262f759 64e807c
Author: Mark Wielaard <>
Date:   Mon Dec 12 15:59:28 2011 +0100

    Merge branch 'master' of ssh://

commit 262f75989148e759f76f16044677182a218bf680
Author: Mark Wielaard <>
Date:   Mon Dec 12 15:54:59 2011 +0100

    Protect just the transport state with _stp_transport_mutex.
    _stp_transport_mutex was held over the whole of _stp_handle_start()
    and _stp_cleanup_and_exit(). This is unnecessary and dangerous since
    some functions that get called could sleep. Add a new state variable
    _stp_start_called and protect just that together with _stp_exit_called
    to make sure _stp_handle_start() and _stp_cleanup_and_exit() are only
    executed once.

commit ab86339871ab6e281cbb3c62ea9b1d5f6a53e1f4
Author: Mark Wielaard <>
Date:   Mon Dec 12 13:46:28 2011 +0100

    uprobes.c add rcu_read_lock for pid_task(), rcu_dereference and utrace.
    pid_task(), rcu_dereference() and the utrace functions that convert a
    given pid to a task need to be protected by the rcu_read_lock().


Summary of changes:
 runtime/transport/transport.c |   50 ++++++++++++++++++++++++++++++----------
 runtime/uprobes2/uprobes.c    |   42 ++++++++++++++++++++++++++++++++--
 2 files changed, 76 insertions(+), 16 deletions(-)

systemtap: system-wide probe/trace tool

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