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| author | Andrea Righi <righi.andrea@gmail.com> | 2008-09-20 06:58:40 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-22 06:27:47 -0400 |
| commit | 45f197ade73ba95681b9803680c75352fc0a1c0a (patch) | |
| tree | 2a066d86abc126a5f8c096fd475859d056f4f2fd /drivers/oprofile/oprof.c | |
| parent | 2879a927bb7a3cf91ae3906a5e59215f9c17dd75 (diff) | |
x86, oprofile: BUG: using smp_processor_id() in preemptible code
Add __raw access before setting per cpu variable switch_index, to avoid
the following BUG:
[ 449.166827] BUG: using smp_processor_id() in preemptible [00000000] code: modprobe/6998
[ 449.166848] caller is op_nmi_init+0xf0/0x2b0 [oprofile]
[ 449.166855] Pid: 6998, comm: modprobe Not tainted 2.6.27-rc5-mm1 #29
[ 449.166860] Call Trace:
[ 449.166872] [<ffffffff80362d67>] debug_smp_processor_id+0xd7/0xe0
[ 449.166887] [<ffffffffa00181c0>] op_nmi_init+0xf0/0x2b0 [oprofile]
[ 449.166902] [<ffffffffa0018000>] oprofile_init+0x0/0x60 [oprofile]
[ 449.166915] [<ffffffffa00180a9>] oprofile_arch_init+0x9/0x30 [oprofile]
[ 449.166928] [<ffffffffa001801e>] oprofile_init+0x1e/0x60 [oprofile]
[ 449.166937] [<ffffffff8020903b>] _stext+0x3b/0x160
[ 449.166946] [<ffffffff80477985>] __mutex_unlock_slowpath+0xe5/0x190
[ 449.166955] [<ffffffff80262c1a>] trace_hardirqs_on_caller+0xca/0x140
[ 449.166965] [<ffffffff8026f7fc>] sys_init_module+0xdc/0x210
[ 449.166972] [<ffffffff8020b7cb>] system_call_fastpath+0x16/0x1b
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Acked-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/oprofile/oprof.c')
0 files changed, 0 insertions, 0 deletions