On Wed, Jun 17, 2020 at 09:46:17AM +0200, Sebastian Andrzej Siewior wrote: > On 2020-06-16 14:04:25 [-0300], Marcelo Tosatti wrote: > > It is affected. The workqueue thread for a given CPU is SCHED_OTHER, which can't > > interrupt a SCHED_FIFO task which does not sleep. > > Okay. So it is a problem which exists independently of -RT. > As I pointed out to Juri, vmstat_update() should have the very same > problem, correct? Yes.
