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From: fche@sourceware.org
To: systemtap-cvs@sourceware.org
Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-594-g12aa5f9
Date: Tue, 13 Dec 2011 22:32:00 -0000	[thread overview]
Message-ID: <20111213223224.10508.qmail@sourceware.org> (raw)

This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "systemtap: system-wide probe/trace tool".

The branch, master has been updated
       via  12aa5f9c1d9ac3dc7003f9c0e0b8e34c23d67407 (commit)
       via  b9527ce55abb46cb0b2cb778bec7c2bb53788f26 (commit)
      from  83a3418f8e3b82d76db9c2b0548b29ec376c1257 (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
commit 12aa5f9c1d9ac3dc7003f9c0e0b8e34c23d67407
Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Tue Dec 13 17:27:38 2011 -0500

    PR13489/PR11671: more lockdep antihistamines
    
    * runtime/task_finder_vma.c (__stp_tf_vma_new_entry): Use
      STP_ALLOC_FLAGS for new vma entry memory allocation needs.

commit b9527ce55abb46cb0b2cb778bec7c2bb53788f26
Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Tue Dec 13 16:02:33 2011 -0500

    PR13386: move _stp_kill_time out of preemption-disabled interval at shutdown
    
    Without this change, it was possible to get this warning:
    
    [ 2083.250059] stap_76e60190a026972913d9501600bceb0a_767363: systemtap: 1.7/0.152, base: fffffff
    fa066f000, memory: 4269data/40text/62ctx/2058net/377alloc kb, probes: 5474
    [ 2085.743714] BUG: sleeping function called from invalid context at kernel/mutex.c:271
    [ 2085.747088] in_atomic(): 1, irqs_disabled(): 0, pid: 31536, name: stapio
    [ 2085.749797] no locks held by stapio/31536.
    [ 2085.751520] Pid: 31536, comm: stapio Tainted: G           O 3.2.0-rc5-next-20111213 #1
    [ 2085.754634] Call Trace:
    [ 2085.756109]  [<ffffffff81094f35>] __might_sleep+0x135/0x1f0
    [ 2085.758339]  [<ffffffff81670c5f>] mutex_lock_nested+0x2f/0x3a0
    [ 2085.760624]  [<ffffffff810c14ed>] ? trace_hardirqs_on+0xd/0x10
    [ 2085.763117]  [<ffffffff81072482>] ? try_to_del_timer_sync+0xb2/0x1a0
    [ 2085.765854]  [<ffffffff8108ff6f>] srcu_notifier_chain_unregister+0x2f/0xf0
    [ 2085.771204]  [<ffffffff81072570>] ? try_to_del_timer_sync+0x1a0/0x1a0
    [ 2085.774824]  [<ffffffff814f462c>] cpufreq_unregister_notifier+0x1c/0x40
    [ 2085.780119]  [<ffffffffa06717ce>] _stp_kill_time+0x9e/0xa0 [stap_76e60190a026972913d9501600bceb0a_767363]
    [ 2085.785254]  [<ffffffffa0677a15>] _stp_cleanup_and_exit+0x375/0x430 [stap_76e60190a026972913d9501600bceb0a_767363]
    [ 2085.790342]  [<ffffffffa0677d82>] _stp_ctl_write_cmd+0x272/0xbb5 [stap_76e60190a026972913d9501600bceb0a_767363]
    [ 2085.794189]  [<ffffffff811ac4a6>] vfs_write+0xb6/0x180
    [ 2085.796239]  [<ffffffff81677579>] kretprobe_trampoline_holder+0x9/0x9
    [ 2085.798521]  [<ffffffff81677579>] kretprobe_trampoline_holder+0x9/0x9
    
    * translate.cxx (c_unparser::emit_module_exit): Move _stp_kill_time up a wee.

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

Summary of changes:
 runtime/task_finder_vma.c |    4 +++-
 translate.cxx             |   10 +++++-----
 2 files changed, 8 insertions(+), 6 deletions(-)


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