From: Alan Cox <alan@redhat.com>
To: Gregor Jasny <jasny@vidsoft.de>
Cc: video4linux-list@redhat.com, linux-uvc-devel@lists.berlios.de
Subject: Re: Thread safety of ioctls
Date: Mon, 23 Jun 2008 09:29:30 -0400 [thread overview]
Message-ID: <20080623132930.GA499@devserv.devel.redhat.com> (raw)
In-Reply-To: <485F7A42.8020605@vidsoft.de>
On Mon, Jun 23, 2008 at 12:26:10PM +0200, Gregor Jasny wrote:
> Can I enable more logging than setting the trace parameter to 0xfff?
> Have you any idea what went wrong here? Is the V4L2-API designed to be
> thread safe?
It should be yes. Could be someone is taking a semaphore around a sleeping
ioctl operation and didn't drop it from the sound of the bug report.
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next prev parent reply other threads:[~2008-06-23 13:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-23 10:26 Thread safety of ioctls Gregor Jasny
2008-06-23 13:29 ` Alan Cox [this message]
2008-06-23 22:33 ` [Linux-uvc-devel] " Laurent Pinchart
2008-06-24 13:39 ` Alan Cox
2008-06-24 21:34 ` Laurent Pinchart
2008-06-24 22:23 ` Alan Cox
2008-06-24 21:36 ` Mauro Carvalho Chehab
2008-06-24 22:04 ` Laurent Pinchart
2008-06-26 19:48 ` Driver hangs at DQBUF ioctl Gregor Jasny
2008-06-30 15:39 ` [Linux-uvc-devel] " Laurent Pinchart
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