Re: Linux 2.6.35-rc3

From: Andrew Morton
Date: Sat Jun 12 2010 - 12:34:59 EST


On Sat, 12 Jun 2010 11:59:03 +0200 Borislav Petkov <bp@xxxxxxxxx> wrote:

> From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> Date: Fri, Jun 11, 2010 at 08:01:22PM -0700
>
> > So give it a good testing.
>
> This one still triggers the warning below. Now there's supposedly a fix
> at least at http://www.spinics.net/lists/cpufreq/msg01631.html
>
> Can we get it in anytime soon?
>
> Thanks.
>
> [ 13.120063] BUG: using smp_processor_id() in preemptible [00000000] code: cpufreq-set/1757
> [ 13.120310] caller is nr_iowait_cpu+0x1a/0x30
> [ 13.120495] Pid: 1757, comm: cpufreq-set Not tainted 2.6.35-rc3 #2
> [ 13.120636] Call Trace:
> [ 13.120777] [<ffffffff811ab552>] debug_smp_processor_id+0xc2/0xdc
> [ 13.120919] [<ffffffff81028e1e>] nr_iowait_cpu+0x1a/0x30
> [ 13.120921] [<ffffffff81062a22>] update_ts_time_stats+0x3c/0x77
> [ 13.120925] [<ffffffff8105e390>] ? ktime_get+0x65/0xbe
> [ 13.120927] [<ffffffff81062c03>] get_cpu_idle_time_us+0x49/0x68
> [ 13.120932] [<ffffffffa0047d20>] cpufreq_governor_dbs+0xeb/0x40f [cpufreq_ondemand]
> [ 13.120936] [<ffffffff81348094>] __cpufreq_governor+0x16b/0x1c6
> [ 13.120941] [<ffffffff8134937a>] __cpufreq_set_policy+0x119/0x156
> [ 13.120943] [<ffffffff813497e6>] store_scaling_governor+0x195/0x1cf
> [ 13.120946] [<ffffffff8134a033>] ? handle_update+0x0/0x13
> [ 13.120949] [<ffffffff8134923f>] store+0x5e/0x80
> [ 13.120952] [<ffffffff811320ac>] sysfs_write_file+0x108/0x144
> [ 13.120955] [<ffffffff810dd3d2>] vfs_write+0xb2/0x153
> [ 13.120957] [<ffffffff810dd536>] sys_write+0x4a/0x71
> [ 13.120960] [<ffffffff8100221b>] system_call_fastpath+0x16/0x1b

Last I heard, Arjan was looking into this.
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