https://syzkaller.appspot.com/bug?extid=483d6c9b9231ea7e1851
KCSAN: data-race in p9_conn_cancel / p9_poll_workfn (9)
dataraceconncancelpoll
https://syzkaller.appspot.com/bug?id=e921913234c22b0c605f9d13022d6a26fac2715e
KCSAN: data-race in p9_poll_workfn / p9_write_work
dataracepollwritework
https://syzkaller.appspot.com/bug?id=57c97326a439fe359889ea9c27514457afd367dc
INFO: rcu detected stall in wb_workfn (3)
inforcudetectedstallwb