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| author | Maarten Lankhorst <[email protected]> | 2011-08-01 11:08:59 -0400 |
|---|---|---|
| committer | Robert Richter <[email protected]> | 2011-08-01 22:54:19 +0200 |
| commit | 1d12d35284b74b7257b84ba0cef1e82a66d73aea (patch) | |
| tree | f39d356e9313635ade8755fb39d5787939bf0e8f /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | 4d4abdcb1dee03a4f9d6d2021622ed07e14dfd17 (diff) | |
oprofile, x86: Convert memory allocation to static array
On -rt, allocators don't work from atomic context any more,
and the maximum size of the array is known at compile time.
Call trace on a -rt kernel:
oprofile: using NMI interrupt.
BUG: sleeping function called from invalid context at kernel/rtmutex.c:645
in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: kworker/0:1
Pid: 0, comm: kworker/0:1 Tainted: G C 3.0.0-rt3-patser+ #39
Call Trace:
<IRQ> [<ffffffff8103fc0a>] __might_sleep+0xca/0xf0
[<ffffffff8160d424>] rt_spin_lock+0x24/0x40
[<ffffffff811476c7>] __kmalloc+0xc7/0x370
[<ffffffffa0275c85>] ? ppro_setup_ctrs+0x215/0x260 [oprofile]
[<ffffffffa0273de0>] ? oprofile_cpu_notifier+0x60/0x60 [oprofile]
[<ffffffffa0275c85>] ppro_setup_ctrs+0x215/0x260 [oprofile]
[<ffffffffa0273de0>] ? oprofile_cpu_notifier+0x60/0x60 [oprofile]
[<ffffffffa0273de0>] ? oprofile_cpu_notifier+0x60/0x60 [oprofile]
[<ffffffffa0273ea4>] nmi_cpu_setup+0xc4/0x110 [oprofile]
[<ffffffff81094455>] generic_smp_call_function_interrupt+0x95/0x190
[<ffffffff8101df77>] smp_call_function_interrupt+0x27/0x40
[<ffffffff81615093>] call_function_interrupt+0x13/0x20
<EOI> [<ffffffff8131d0c4>] ? plist_check_head+0x54/0xc0
[<ffffffff81371fe8>] ? intel_idle+0xc8/0x120
[<ffffffff81371fc7>] ? intel_idle+0xa7/0x120
[<ffffffff814a57b0>] cpuidle_idle_call+0xb0/0x230
[<ffffffff810011db>] cpu_idle+0x8b/0xe0
[<ffffffff815fc82f>] start_secondary+0x1d3/0x1d8
Signed-off-by: Maarten Lankhorst <[email protected]>
Signed-off-by: Robert Richter <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions