From: khalasa@piap.pl (Krzysztof Hałasa)
To: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
Cc: "hans.verkuil" <hans.verkuil@cisco.com>,
Linux Media <linux-media@vger.kernel.org>
Subject: Re: [RFC] solo6x10 freeze, even with Oct 31's linux-next... any ideas or help?
Date: Fri, 14 Nov 2014 12:00:59 +0100 [thread overview]
Message-ID: <m3sihmf3mc.fsf@t19.piap.pl> (raw)
In-Reply-To: <CAM_ZknVTqh0VnhuT3MdULtiqHJzxRhK-Pjyb58W=4Ldof0+jgA@mail.gmail.com> (Andrey Utkin's message of "Tue, 11 Nov 2014 19:46:46 +0200")
Andrey Utkin <andrey.utkin@corp.bluecherry.net> writes:
> The problem is the following: after ~1 hour of uptime with working
> application reading the streams, one card (the same one every time)
> stops producing interrupts (counter in /proc/interrupts freezes), and
> all threads reading from that card hang forever in
> ioctl(VIDIOC_DQBUF).
There is a race condition in the IRQ handler, at least in 3.17.
I don't know if it's related, will post a patch.
--
Krzysztof Halasa
Research Institute for Automation and Measurements PIAP
Al. Jerozolimskie 202, 02-486 Warsaw, Poland
next prev parent reply other threads:[~2014-11-14 11:08 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-11 17:46 [RFC] solo6x10 freeze, even with Oct 31's linux-next... any ideas or help? Andrey Utkin
2014-11-11 18:05 ` Hans Verkuil
2014-11-11 18:16 ` Andrey Utkin
2014-11-14 7:29 ` Andrey Utkin
2014-11-27 5:45 ` Ismael Luceno
2014-11-14 11:00 ` Krzysztof Hałasa [this message]
2014-11-14 11:42 ` Andrey Utkin
2014-11-15 13:48 ` Andrey Utkin
2014-11-15 14:08 ` Hans Verkuil
2014-11-15 14:23 ` Andrey Utkin
2014-11-15 20:42 ` Krzysztof Hałasa
2014-11-15 22:12 ` Andrey Utkin
2014-11-27 5:49 ` Ismael Luceno
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