Messages in this thread | | | Subject | Re: general protection fault in wb_workfn | From | Tetsuo Handa <> | Date | Tue, 24 Apr 2018 06:43:00 +0900 |
| |
On 2018/04/23 19:09, Tetsuo Handa wrote: > By the way, I got a newbie question regarding commit 5318ce7d46866e1d ("bdi: > Shutdown writeback on all cgwbs in cgwb_bdi_destroy()"). It uses clear_bit() > to clear WB_shutting_down bit so that threads waiting at wait_on_bit() will > wake up. But clear_bit() itself does not wake up threads, does it? Who wakes > them up (e.g. by calling wake_up_bit()) after clear_bit() was called? >
Below report might be waiting for wake_up_bit() ?
INFO: task hung in wb_shutdown (2) https://syzkaller.appspot.com/bug?id=b297474817af98d5796bc544e1bb806fc3da0e5e
| |