From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= Subject: Re: [BUG] pci-passthrough generates "xen:events: Failed to obtain physical IRQ" for some devices Date: Wed, 3 Feb 2016 15:22:30 +0100 Message-ID: <20160203142230.GC24446@mail-itl> References: <20160127183005.GB3134@char.us.oracle.com> <1454323426.28781.73.camel@citrix.com> <20160201145053.GA21826@char.us.oracle.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0503710103814693206==" Return-path: In-Reply-To: <20160201145053.GA21826@char.us.oracle.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Konrad Rzeszutek Wilk Cc: Tommi Airikka , Ian Campbell , 810379@bugs.debian.org, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org --===============0503710103814693206== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="L6iaP+gRLNZHKoI4" Content-Disposition: inline --L6iaP+gRLNZHKoI4 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Feb 01, 2016 at 09:50:53AM -0500, Konrad Rzeszutek Wilk wrote: > > The second bullet looks at first pretty interesting from this PoV, > > see=C2=A0http://xenbits.xen.org/xsa/advisory-157.html=C2=A0for info on = the XSA and > > the various patches. Konrad is on the CC already so hopefully he has so= me > > ideas. >=20 > Thanks. I will try to reproduce this with the upstream kernel first as > those patches are there. According to one Qubes OS user report[1], the bug was introduced between version, which differs only by XSA-155 patches (including one for pciback), especially not XSA-157.=20 Maybe on some code path, some value is not copied back to pdev->sh_info->op? [1] https://groups.google.com/d/msgid/qubes-devel/e64792c5-b9af-42ac-8d67-adce4= 26b9dcb%40googlegroups.com --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? --L6iaP+gRLNZHKoI4 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJWsg0oAAoJENuP0xzK19csthYH/j23NRYrqMA9wWu/wFb3PjW6 JOg7fsH53+xrRidcAti9JvnNxJo3nK9ZP7oX/TEFHiRVdOmIiAuvJ4H/mXRfdfRu IMhLHo5SmkxJ5JDbaBw/v7kJIh33gKURZLqPVS5Jw1mY9RCvp4tZe1mK2au2aacL //R4/l1K3FqnJ0lCc9t4Y/PhdT+1hoUiZpB158iuHakPI1IAUbMH0u85BSyT+Zbc R8T16DglhU7RvnuqFKaMsoE/6al+7rRPmrtjw1qxHXtvRS5SULOHbcolOK6bSN+d gEvpdsHEaWX7bRXm6TVRDxvOq3U7fz1M1Bba/jgYSMKvnQO9UUOGORa4KZUVju8= =Akte -----END PGP SIGNATURE----- --L6iaP+gRLNZHKoI4-- --===============0503710103814693206== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel --===============0503710103814693206==--