Messages in this thread | | | Date | Mon, 11 Sep 2017 16:21:33 +0200 | From | Markus Trippelsdorf <> | Subject | Re: Worker threads in D state since c5a94a618e7ac86 (workqueue: Use TASK_IDLE) |
| |
On 2017.09.11 at 06:11 -0700, Tejun Heo wrote: > Hello, > > On Sun, Sep 10, 2017 at 09:36:53AM +0200, Markus Trippelsdorf wrote: > > Since: > > > > commit c5a94a618e7ac86b20f53d947f68d7cee6a4c6bc > > Author: Peter Zijlstra <peterz@infradead.org> > > Date: Wed Aug 23 13:58:44 2017 +0200 > > > > workqueue: Use TASK_IDLE > > > > > > all worker threads are in D state. They all show up when using "magic > > SysRq w". In htop they all have big fat red 'D' in the state column. > > Is this really desirable? > > > > I have attached the output of "ps aux" after boot and the SysRq-w > > output. > > Hmm.... looks like we better revert until we figure out how this > should get presented in debugging facilities / to userspace. Peter?
BTW rcu recently introduced the same issue:
commit d5374226c3e444239e063f005dfb59cae4390db4 Author: Luis R. Rodriguez <mcgrof@kernel.org> Date: Tue Jun 20 14:45:47 2017 -0700
rcu: Use idle versions of swait to make idle-hack clear
-- Markus
| |