Messages in this thread | | | Date | Sun, 24 Mar 2013 12:55:56 +0100 | From | Borislav Petkov <> | Subject | BUG: using smp_processor_id() in preemptible [00000000] code: asm/8267 |
| |
Hi,
so I was tracing a small .c program like so:
$ ./perf record ~/test/asm
and here's what got spewed in dmesg. Kernel is plain -rc4. Any pending fixes in tip I should try?
[ 3700.194208] BUG: using smp_processor_id() in preemptible [00000000] code: asm/8333 [ 3700.194226] caller is perf_event_task_ctx+0x55/0x140 [ 3700.194235] Pid: 8333, comm: asm Not tainted 3.9.0-rc4 #1 [ 3700.194243] Call Trace: [ 3700.194261] [<ffffffff812b4182>] debug_smp_processor_id+0xd2/0xf0 [ 3700.194279] [<ffffffff810e5155>] perf_event_task_ctx+0x55/0x140 [ 3700.194296] [<ffffffff810e5412>] perf_event_task+0x1d2/0x3c0 [ 3700.194308] [<ffffffff810e52ad>] ? perf_event_task+0x6d/0x3c0 [ 3700.194324] [<ffffffff810e99a6>] perf_event_exit_task+0x166/0x250 [ 3700.194333] [<ffffffff810414be>] do_exit+0x27e/0xb20 [ 3700.194340] [<ffffffff8159ac63>] ? error_sti+0x5/0x6 [ 3700.194349] [<ffffffff8159a80d>] ? retint_swapgs+0xe/0x13 [ 3700.194358] [<ffffffff81041f1c>] do_group_exit+0x4c/0xc0 [ 3700.194365] [<ffffffff81041fa7>] sys_exit_group+0x17/0x20 [ 3700.194373] [<ffffffff8159b306>] system_call_fastpath+0x1a/0x1f
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
| |