Re: [patch] Reorganize the cpufreq cpu hotplug locking to not betotally bizare

From: Linus Torvalds
Date: Wed Jul 26 2006 - 13:14:28 EST

On Wed, 26 Jul 2006, Dave Jones wrote:
> Looks sensible to me. Assuming it passes testing..

It looked sensible to me too, although it still shows some "Lukewarm IQ"
notices for the ondemand driver:

Lukewarm IQ detected in hotplug locking
BUG: warning at kernel/cpu.c:38/lock_cpu_hotplug()
[<c0103d07>] show_trace+0xd/0x10
[<c01042ec>] dump_stack+0x19/0x1b
[<c013778d>] lock_cpu_hotplug+0x43/0x69
[<c012f9df>] __create_workqueue+0x52/0x11f
[<df0ec34b>] cpufreq_governor_dbs+0x9f/0x2bd [cpufreq_ondemand]
[<c0305542>] __cpufreq_governor+0x57/0xd8
[<c0305700>] __cpufreq_set_policy+0x13d/0x1a9
[<c0305906>] store_scaling_governor+0x12d/0x155
[<c0304fbd>] store+0x34/0x45
[<c01998fc>] sysfs_write_file+0x99/0xbf
[<c0164953>] vfs_write+0xab/0x157
[<c0164f8c>] sys_write+0x3b/0x60
[<c0102d41>] sysenter_past_esp+0x56/0x79

but is sure looks better than it used to. Which is why I already applied
it ;)

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