Messages in this thread | | | Subject | Re: 2.6.24-rc7 lockdep warning when poweroff | From | Peter Zijlstra <> | Date | Mon, 14 Jan 2008 10:24:04 +0100 |
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On Mon, 2008-01-14 at 17:04 +0800, Dave Young wrote: > Hi, > > When I "halt -p", lockdep warnings triggered as following (hand copy): > > WARNING : at kernel/lockdep.c: 700 lookup_lock_class() > > <snip> > lock_acquire > cleanup_workqueue_thread > workqueue_cpu_callback > notifier_call_chain > __raw_notifier_call_chain > raw_notifier_call_chain > __cpu_down > disable_nonboot_cpus > kernel_power_off > sys_reboot > <snip>
My first guess would be a __create_workqueue_key() where a key is re-used with a different workqueue name.
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