linux-kernel - Re: [syzbot] INFO: rcu detected stall in __hrtimer_run

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Message-ID: <0000000000007ee63e05d0e9c172@google.com>
Date:   Tue, 16 Nov 2021 07:41:15 -0800
From:   syzbot <syzbot+de9526ade17c659d8336@...kaller.appspotmail.com>
To:     axboe@...nel.dk, fweisbec@...il.com, hch@....de, hdanton@...a.com,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        mingo@...nel.org, paulmck@...nel.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de
Subject: Re: [syzbot] INFO: rcu detected stall in __hrtimer_run_queues

syzbot suspects this issue was fixed by commit:

commit b60876296847e6cd7f1da4b8b7f0f31399d59aa1
Author: Jens Axboe <axboe@...nel.dk>
Date:   Fri Oct 15 21:03:52 2021 +0000

    block: improve layout of struct request

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=137f2d01b00000
start commit:   f40ddce88593 Linux 5.11
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=e53d04227c52a0df
dashboard link: https://syzkaller.appspot.com/bug?extid=de9526ade17c659d8336
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17a81012d00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1282b6d2d00000

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

#syz fix: block: improve layout of struct request

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