Re: [syzbot] [mm?] INFO: rcu detected stall in mas_preallocate (2)

[syzbot]

syzbot has bisected this issue to:

commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxx>
Date:   Sat Sep 29 00:59:43 2018 +0000

    tc: Add support for configuring the taprio scheduler

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=117df818580000
start commit:   feffde684ac2 Merge tag 'for-6.13-rc1-tag' of git://git.ker..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=137df818580000
console output: https://syzkaller.appspot.com/x/log.txt?x=157df818580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=50c7a61469ce77e7
dashboard link: https://syzkaller.appspot.com/bug?extid=882589c97d51a9de68eb
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10e8a8df980000

Reported-by: syzbot+882589c97d51a9de68eb@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")

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