linux-kernel - Re: WARNING in add_event_to

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Date:   Thu, 20 Jun 2019 07:39:01 -0700
From:   syzbot <syzbot+704bfe2c7d156640ad7a@...kaller.appspotmail.com>
To:     acme@...nel.org, acme@...hat.com,
        alexander.shishkin@...ux.intel.com, ast@...nel.org,
        bpf@...r.kernel.org, daniel@...earbox.net, davem@...emloft.net,
        jbacik@...com, jolsa@...hat.com, kafai@...com, kernel-team@...com,
        linux-kernel@...r.kernel.org, mingo@...nel.org, mingo@...hat.com,
        namhyung@...nel.org, netdev@...r.kernel.org, peterz@...radead.org,
        rostedt@...dmis.org, songliubraving@...com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        torvalds@...ux-foundation.org, yhs@...com
Subject: Re: WARNING in add_event_to_ctx

syzbot has bisected this bug to:

commit 33ea4b24277b06dbc55d7f5772a46f029600255e
Author: Song Liu <songliubraving@...com>
Date:   Wed Dec 6 22:45:16 2017 +0000

     perf/core: Implement the 'perf_uprobe' PMU

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17561aa1a00000
start commit:   abf02e29 Merge tag 'pm-5.2-rc6' of git://git.kernel.org/pu..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=14d61aa1a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=10d61aa1a00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=28ec3437a5394ee0
dashboard link: https://syzkaller.appspot.com/bug?extid=704bfe2c7d156640ad7a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16d8b732a00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17f7a5e6a00000

Reported-by: syzbot+704bfe2c7d156640ad7a@...kaller.appspotmail.com
Fixes: 33ea4b24277b ("perf/core: Implement the 'perf_uprobe' PMU")

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