Hello, On Thu, Apr 11, 2024 at 04:38:34AM +0000, Shinichiro Kawasaki wrote: > Sure. I manually ran the command below during the unmount operation. > > $ sudo drgn ./tools/workqueue/wq_monitor.py -i 10 'dmz_cwq.*' > > Please find the command outputs below. I captured the outputs with three kernel > variations. Each of them shows the output for a minute. > > Kernel: v6.8 > -------------------------------------------------------------------------------- > total infl CPUtime CPUitsv CMW/RPR mayday rescued > dmz_cwq_dmz_dml_072 825 76 17.1 - 0 0 0 > -------------------------------------------------------------------------------- > > Kernel: v6.9-rc2 > -------------------------------------------------------------------------------- > total infl CPUtime CPUitsv CMW/RPR mayday rescued > dmz_cwq_dmz_dml_072 580 7 3.9 - 0 0 0 There's definitely something going wrong here. This isn't the expected behavior. Can you please attach the output of tools/workqueue/wq_dump.py too? What'd be the easiest way to reproduce the problem you're seeing? Thanks. -- tejun
