Re: 2.6.31-rc1-git9: INFO: possible circular locking dependencydetected -- (&(&dbs_info->work)->work){+.+...}, at: [<c104292d>]__cancel_work_timer+0x81/0x17f

[Dave Jones]

On Thu, Jul 02, 2009 at 10:41:23AM -0400, Miles Lane wrote:
 > [  348.243995] [ INFO: possible circular locking dependency detected ]
 > [  348.244004] 2.6.31-rc1-git9 #13
 > [  348.244009] -------------------------------------------------------
 > [  348.244017] pm-suspend/3134 is trying to acquire lock:
 > [  348.244023]  (&(&dbs_info->work)->work){+.+...}, at: [<c104292d>]
 > __cancel_work_timer+0x81/0x17f
 > [  348.244025]
 > [  348.244025] but task is already holding lock:
 > [  348.244025]  (dbs_mutex){+.+.+.}, at: [<f805791c>]
 > cpufreq_governor_dbs+0x1fd/0x279 [cpufreq_ondemand]

well known by now. Venki is working on a fix, but it's not a simple
fix, so it's taking time.

	Dave
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