On 2017.09.11 at 16:21 +0200, Markus Trippelsdorf wrote: > 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 <pet...@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 <mcg...@kernel.org> > Date: Tue Jun 20 14:45:47 2017 -0700 > > rcu: Use idle versions of swait to make idle-hack clear
Ping? You may call it a cosmetic issue, but still it makes debugging much harder. Finding "real" blocked tasks is now like finding a needle in a haystack. -- Markus
