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Date: Fri, 2 Dec 2016 22:02:17 +0100
From: Pavel Machek <pavel@ucw.cz>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>, Denys Vlasenko <dvlasenk@redhat.com>,
        jan.kratochvil@redhat.com, palves@redhat.com,
        Roland McGrath <roland@hack.frob.com>,
        syzkaller <syzkaller@googlegroups.com>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: Unkillable processes due to PTRACE_TRACEME again
Message-ID: <20161202210217.GA15126@amd>
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On Fri 2016-12-02 19:48:40, Dmitry Vyukov wrote:
> Hello,
>=20
> There was an issue discussed a year ago which leads to
> unkillalble/unwaitable zombie processes due to PTRACE_TRACEME:
> https://groups.google.com/d/msg/syzkaller/uGzwvhlCXAw/E-cfY2ejAgAJ
> and I though it has been fixed by "wait/ptrace: assume __WALL if the
> child is traced":
> https://groups.google.com/d/msg/syzkaller/caeB1ebZWAs/gcbvcM2HDAAJ
>=20
> I am not on 2caceb3294a78c389b462e7e236a4e744a53a474 (Dec 1). And see

"Now on"?

> the same unwaitable zombie processes.

Well.. I guess git bisect is one option...?

Best regards,
								Pavel

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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