Re: INFO: rcu detected stall in sock_close (3)

[syzbot]

syzbot suspects this issue was fixed by commit:

commit 98b89b649fce39dacb9dc036d6d0fdb8caff73f7
Author: Jens Axboe <axboe@xxxxxxxxx>
Date:   Fri Oct 9 22:03:01 2020 +0000

    signal: kill JOBCTL_TASK_WORK

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14b99c20d00000
start commit:   7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=183dd243398ba7ec
dashboard link: https://syzkaller.appspot.com/bug?extid=4168fa4c45be33afa73c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=112223b7100000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=154793a3100000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: signal: kill JOBCTL_TASK_WORK

For information about bisection process see: https://goo.gl/tpsmEJ#bisection