Re: [rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s!

On Tue, Nov 21, 2017 at 3:19 AM, Fengguang Wu wrote: > > FYI this happens in mainline kernel 4.14.0-10859-gcf9b077. > It at least dates back to v4.5 . Hmm. This seems to be doing some concurrent rhashtable stress testing, while at the same time doing the RCU stress

[rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s!

Hello, FYI this happens in mainline kernel 4.14.0-10859-gcf9b077. It at least dates back to v4.5 . It occurs in 2 out of 2 boots. [ 204.036012] Average test time: 28300548370 [ 204.045272] Testing concurrent rhashtable access from 10 threads [ 206.134970] Writes: Total: 2 Max/Min: 0/0