Re: 2.6.18-rc4-mm1

Michal Piotrowski
2006-08-13T22:58:34Z

On 14/08/06, Ben Buxton <kernel@bb.cactii.net> wrote:
> Andrew Morton <akpm@osdl.org> uttered the following thing:
> > On Sun, 13 Aug 2006 13:45:35 +0200
> > Maciej Rutecki <maciej.rutecki@gmail.com> wrote:
> >
> > > Andrew Morton napisa??(a):
> > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm1/
> > >
> > > I have problem with my keyboard. I have no error in dmesg and syslog,
> > > but it doesn't work. I read google and try "i8042.nomux", but it didn't
> > > help.
> > >
> > > I enclose dmesg with "i8042.debug=1" option and my config.
> > >
> > > Maybe I forgot something in config?
> > >
> >
> >
> > Could be i8042-get-rid-of-polling-timer-v4.patch. Please try the below
> > reversion patch, on top of rc4-mm1, thanks.
>
> Acking the same issue. Applied the revert patch and my keyboard now
> works. Also, it turns out that my keyboard is now the only thing that
> failed to resume from S3 on my HP Nc6400, but adding "irqpoll" has fixed
> that for now.
>
> Also, to two other things I spotted with cpufreq. Running
> speedstep-centrino on a Core Duo T2400 (1.83GHz) I see the
> "cpuinfo_max_freq" is 1833000, but "scaling_max_freq" is fixed at 1333000,
> regardless of the governor, and I cannot change it.
>
> Also, whenever I echo anything to "scaling_governor", I get the
> following kernel message:
>
> [ 734.156000] BUG: warning at kernel/cpu.c:38/lock_cpu_hotplug()
> [ 734.156000] [<c013c3ec>] lock_cpu_hotplug+0x7c/0x90
> [ 734.156000] [<c01327f4>] __create_workqueue+0x44/0x140
> [ 734.156000] [<c02dcf7b>] mutex_lock+0xb/0x20
> [ 734.156000] [<e01f2665>] cpufreq_governor_dbs+0x2b5/0x310
> [cpufreq_ondemand]
> [ 734.156000] [<c012f6a5>] notifier_call_chain+0x25/0x40
> [ 734.156000] [<c0274b06>] __cpufreq_governor+0x46/0xe0
> [ 734.156000] [<c0274c84>] __cpufreq_set_policy+0xe4/0x130
> [ 734.156000] [<c0275ae4>] store_scaling_governor+0xd4/0x210
> [ 734.160000] [<c02756a0>] handle_update+0x0/0x10
> [ 734.160000] [<c01e2000>] kobject_get+0x0/0x20
> [ 734.160000] [<c0275a10>] store_scaling_governor+0x0/0x210
> [ 734.160000] [<c027521d>] store+0x3d/0x60
> [ 734.160000] [<c01a2e0c>] sysfs_write_file+0x9c/0xf0
> [ 734.160000] [<c016a8c6>] vfs_write+0xa6/0x160
> [ 734.160000] [<c01a2d70>] sysfs_write_file+0x0/0xf0
> [ 734.160000] [<c016b001>] sys_write+0x41/0x70
> [ 734.160000] [<c0103115>] sysenter_past_esp+0x56/0x79
>
> It seems that scaling still works, but this message is a bit unnerving.

It's known bug.

>
> BB
>

Regards,
Michal

--
Michal K. K. Piotrowski
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/wiki/)