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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-594-g12aa5f9
- From: fche at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 13 Dec 2011 22:32:24 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-594-g12aa5f9
- Reply-to: systemtap at sourceware dot org
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- 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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systemtap: system-wide probe/trace tool