[Bug 16168] New: BUG: using smp_processor_id() in preemptible [00000000] code:

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



https://bugzilla.kernel.org/show_bug.cgi?id=16168

           Summary: BUG: using smp_processor_id() in preemptible
                    [00000000] code:
           Product: Power Management
           Version: 2.5
    Kernel Version: v2.6.35-rc2-54-g84f7586
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: cpufreq
        AssignedTo: cpufreq@xxxxxxxxxxxxxxx
        ReportedBy: seanius@xxxxxxxxxx
        Regression: Yes


Note: this might be the same as Bug#16154, I wasn't entirely sure so I'm filing
a seperate report but mentioning it just in case.

After pulling linux-2.6 this morning to get the fix for an unrelated bug, i see
the following in dmesg:

[   19.951747] powernow-k8: Found 1 AMD Phenom(tm) II X3 720 Processor (3 cpu
cores) (version 2.20.00)
[   19.951784] powernow-k8:    0 : pstate 0 (2800 MHz)
[   19.951786] powernow-k8:    1 : pstate 1 (2100 MHz)
[   19.951788] powernow-k8:    2 : pstate 2 (1600 MHz)
[   19.951789] powernow-k8:    3 : pstate 3 (800 MHz)
[   19.951815] BUG: using smp_processor_id() in preemptible [00000000] code:
modprobe/2028
[   19.951819] caller is nr_iowait_cpu+0xd/0x21
[   19.951822] Pid: 2028, comm: modprobe Not tainted 2.6.35-rc2+ #2
[   19.951824] Call Trace:
[   19.951829]  [<ffffffff8116d94e>] ? debug_smp_processor_id+0xbe/0xd4
[   19.951832]  [<ffffffff81034711>] ? nr_iowait_cpu+0xd/0x21
[   19.951835]  [<ffffffff810689d8>] ? update_ts_time_stats+0x32/0x6b
[   19.951839]  [<ffffffff8100f6da>] ? read_tsc+0x5/0x16
[   19.951842]  [<ffffffff81064396>] ? ktime_get+0x5f/0xb8
[   19.951845]  [<ffffffff81068b82>] ? get_cpu_idle_time_us+0x3f/0x5c
[   19.951848]  [<ffffffff8120f3bc>] ? get_cpu_idle_time+0x18/0x9c
[   19.951851]  [<ffffffff8103ab70>] ? add_preempt_count+0x9e/0xa0
[   19.951854]  [<ffffffff8120ff34>] ? cpufreq_governor_dbs+0xc0/0x308
[   19.951857]  [<ffffffff8120d819>] ? __cpufreq_governor+0x59/0x91
[   19.951860]  [<ffffffff8120e7ff>] ? __cpufreq_set_policy+0x111/0x14e
[   19.951863]  [<ffffffff8120ea73>] ? cpufreq_add_dev_interface+0x237/0x251
[   19.951867]  [<ffffffffa0276e8d>] ? powernowk8_cpu_init_on_cpu+0x0/0x95
[powernow_k8]
[   19.951870]  [<ffffffff8103991b>] ? get_parent_ip+0x9/0x1b
[   19.951873]  [<ffffffff8120edfa>] ? handle_update+0x0/0xd
[   19.951877]  [<ffffffff81060a46>] ? __blocking_notifier_call_chain+0x58/0x63
[   19.951880]  [<ffffffff8120f374>] ? cpufreq_add_dev+0x3fd/0x40d
[   19.951883]  [<ffffffff811f4f7b>] ? sysdev_driver_register+0xb1/0x10b
[   19.951885]  [<ffffffff8120dd82>] ? cpufreq_register_driver+0x8c/0x133
[   19.951889]  [<ffffffffa0277084>] ? powernowk8_init+0x162/0x16d
[powernow_k8]
[   19.951893]  [<ffffffffa0276f22>] ? powernowk8_init+0x0/0x16d [powernow_k8]
[   19.951896]  [<ffffffff81002064>] ? do_one_initcall+0x63/0x175
[   19.951899]  [<ffffffff81072ba9>] ? sys_init_module+0x97/0x1d6
[   19.951901]  [<ffffffff81008a42>] ? system_call_fastpath+0x16/0x1b

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
--
To unsubscribe from this list: send the line "unsubscribe cpufreq" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Kernel Devel]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Forum]     [Linux SCSI]

  Powered by Linux