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SubjectRe: INFO: task hung in process_measurement
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syzbot has bisected this bug to:

commit 8fe5616b20e5742bb5fee0e77dffe2fc76ac92a0
Author: Jyri Sarha <jsarha@ti.com>
Date: Tue Jun 14 08:43:30 2016 +0000

drm/tilcdc: Restore old dpms state in pm_resume()

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10daff1b200000
start commit: 291d0e5d Merge tag 'for-linus-20180929' of git://git.kerne..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=12daff1b200000
console output: https://syzkaller.appspot.com/x/log.txt?x=14daff1b200000
kernel config: https://syzkaller.appspot.com/x/.config?x=a8212f992609a887
dashboard link: https://syzkaller.appspot.com/bug?extid=cdc562bc26a2b2b0a94f
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=140e285e400000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1237fe81400000

Reported-by: syzbot+cdc562bc26a2b2b0a94f@syzkaller.appspotmail.com
Fixes: 8fe5616b20e5 ("drm/tilcdc: Restore old dpms state in pm_resume()")

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

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