linux-kernel - Re: [syzbot] [net?] [usb?] INFO: rcu detected stall in nsim_dev_trap_report

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Message-ID: <0000000000004d3e3d0609293891@google.com>
Date:   Thu, 02 Nov 2023 03:55:03 -0700
From:   syzbot <syzbot+193dae06b6680599fbab@...kaller.appspotmail.com>
To:     davem@...emloft.net, eadavis@...com, edumazet@...gle.com,
        idosch@...dia.com, jiri@...dia.com, kuba@...nel.org,
        leon@...nel.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-usb@...r.kernel.org,
        netdev@...r.kernel.org, pabeni@...hat.com, petrm@...dia.com,
        saeedm@...dia.com, syzkaller-bugs@...glegroups.com,
        tariqt@...dia.com
Subject: Re: [syzbot] [net?] [usb?] INFO: rcu detected stall in
 nsim_dev_trap_report_work (2)

syzbot has bisected this issue to:

commit 644a66c60f02f302d82c3008ae2ffe67cf495383
Author: Jiri Pirko <jiri@...dia.com>
Date:   Fri Jul 29 07:10:36 2022 +0000

    net: devlink: convert reload command to take implicit devlink->lock

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13c76cf3680000
start commit:   66f1e1ea3548 Add linux-next specific files for 20231027
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=10276cf3680000
console output: https://syzkaller.appspot.com/x/log.txt?x=17c76cf3680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2911330219149de4
dashboard link: https://syzkaller.appspot.com/bug?extid=193dae06b6680599fbab
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10b8e977680000

Reported-by: syzbot+193dae06b6680599fbab@...kaller.appspotmail.com
Fixes: 644a66c60f02 ("net: devlink: convert reload command to take implicit devlink->lock")

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