linux-kernel - Re: INFO: task hung in process

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Date:   Mon, 25 Mar 2019 13:57:08 +0200
From:   Tomi Valkeinen <tomi.valkeinen@...com>
To:     syzbot <syzbot+cdc562bc26a2b2b0a94f@...kaller.appspotmail.com>,
        <airlied@...ux.ie>, <dmitry.kasatkin@...il.com>,
        <dri-devel@...ts.freedesktop.org>, <james.l.morris@...cle.com>,
        <jmorris@...ei.org>, <jsarha@...com>,
        <linux-ima-devel@...ts.sourceforge.net>,
        <linux-ima-user@...ts.sourceforge.net>,
        <linux-integrity@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-security-module@...r.kernel.org>, <serge@...lyn.com>,
        <syzkaller-bugs@...glegroups.com>, <zohar@...ux.vnet.ibm.com>
Subject: Re: INFO: task hung in process_measurement

On 23/03/2019 08:58, syzbot wrote:
> syzbot has bisected this bug to:
> 
> commit 8fe5616b20e5742bb5fee0e77dffe2fc76ac92a0
> Author: Jyri Sarha <jsarha@...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@...kaller.appspotmail.com
> Fixes: 8fe5616b20e5 ("drm/tilcdc: Restore old dpms state in pm_resume()")
> 
> For information about bisection process see:
> https://goo.gl/tpsmEJ#bisection

I don't think the patch from Jyri is related to the crash here.

 Tomi

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