From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: HVR-4000 DVB can't scan or tune (properly) with Xen Date: Mon, 14 Nov 2011 13:38:07 -0500 Message-ID: <20111114183807.GA15284@phenom.dumpdata.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "jonathanjstevens@gmail.com" Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Sun, Nov 13, 2011 at 06:47:14PM +0000, jonathanjstevens@gmail.com wrot= e: > I've come across and issue and I think it may be Xen related. Hoping > you can help. >=20 > I'm trying to use a couple of HVR-4000 with my Xen server. >=20 > I'm running Fedora 16: >=20 > Linux mythtvtuner.home 3.1.0-7.fc16.x86_64 #1 SMP Tue Nov 1 21:10:48 > UTC 2011 x86_64 x86_64 x86_64 GNU/Linux >=20 > and the current packaged Xen is: >=20 > (XEN) Xen version 4.1.2 (mockbuild@phx2.fedoraproject.org) (gcc > version 4.6.1 20111003 (Red Hat 4.6.1-10) (GCC) ) Fri Oct 21 21:56:01 > UTC 2011 Excellent. Everything that is new. >=20 > When I boot without Xen the DVB PCI cards can tune and scan perfectly. > I also have a USB DVB unit, which can tune and scan regardless of > whether Xen is running. However when I try to scan and tune with the > PCI DVB cards it fails. OK, and you are _not_ passing it to a guest right? >=20 > >From what I can tell the symptoms are exactly the same as in: >=20 > http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=3D1786 >=20 > I get the same "filter timeout" messages, and I also see similar > messages in dmesg >=20 > [ =A0 26.572693] cx88[1]/1: IRQ loop detected, disabling interrupts > [ =A0 26.574810] cx88[1]: irq aud [0x1001] dn_risci1* dn_sync* Great. Can you do a couple of tests: 1). Boot your Linux machine with 'mem=3D3G' and see if that makes the iss= ue disappear. 2). Tell me what is the 'scan' tool you use? Is it there a command line version of the tool that triggers this? 3). Or does this happend when you just load the module and it starts doing the IRQ loop detected' thingy? >=20 > I'm running a higher kernel than in the bug resolution though. >=20 > Any help appreciated! >=20 > Regards, > Jon >=20 > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel