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SubjectRe: [syzbot] [gfs2?] BUG: unable to handle kernel NULL pointer dereference in gfs2_rgrp_dump
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syzbot has bisected this issue to:

commit 72244b6bc752b5c496f09de9a13c18adc314a53c
Author: Bob Peterson <rpeterso@redhat.com>
Date: Wed Aug 15 17:09:49 2018 +0000

gfs2: improve debug information when lvb mismatches are found

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1593747ba80000
start commit: 0a924817d2ed Merge tag '6.2-rc-smb3-client-fixes-part2' of..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1793747ba80000
console output: https://syzkaller.appspot.com/x/log.txt?x=1393747ba80000
kernel config: https://syzkaller.appspot.com/x/.config?x=4e2d7bfa2d6d5a76
dashboard link: https://syzkaller.appspot.com/bug?extid=da0fc229cc1ff4bb2e6d
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12e5bf7f880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13952f5d880000

Reported-by: syzbot+da0fc229cc1ff4bb2e6d@syzkaller.appspotmail.com
Fixes: 72244b6bc752 ("gfs2: improve debug information when lvb mismatches are found")

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

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