From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dario Faggioli Subject: Re: [BUG] Xen panic with VT-d PI Date: Thu, 26 May 2016 18:10:43 +0200 Message-ID: <1464279043.21930.134.camel@citrix.com> References: <20160526102636.GU22076@citrix.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2265717040547144950==" Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1b5xsC-0000AF-8g for xen-devel@lists.xenproject.org; Thu, 26 May 2016 16:11:00 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: "Wu, Feng" , Wei Liu Cc: Xen-devel , "Hao, Xudong" List-Id: xen-devel@lists.xenproject.org --===============2265717040547144950== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="=-heckyMTUp7tOfjNPO7uj" --=-heckyMTUp7tOfjNPO7uj Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2016-05-26 at 13:03 +0000, Wu, Feng wrote: > > On Thu, May 26, 2016 at 01:56:28AM +0000, Wu, Feng wrote: > > >=20 > > > The patch fixing this issue has already been sent to upstream. > > >=20 > > > " [PATCH 0/3] VMX: Properly handle pi descriptor and per-cpu > > > blocking list " > > >=20 > > > v2 will be sent out soon. > > >=20 > > I just went through that thread. There are some open questions. > > Also Jan > > requested that you explore other possible options. > >=20 > > My current plan is to not block the release for this -- we're very > > close > > to the anticipated release date, and posted-interrupt is either > > technical preview or experimental, so bugs there are expected. > >=20 > > This issue will be listed as a known issue for PI. And you can > > continue > > to develop a fix for it. Your fix will be integrated with next > > version > > of Xen. Then you can request for backport to 4.7 if you want to. > >=20 > > What do you think about this plan? > I am going to send out the next version of this series, let's see how > it is going on. But basically, I am fine with your release plan. >=20 This does not have anything to do with Wei's plan (with which I also agree), but are you sure that the bug being reported here is related to and would be fixed by the patch you're mentioning? Have you also seen it, and is that what led to the patch? If yes, please, add a bit more information (including excerpts of, or insights about the splat) in the patch changelog. Regards, Dario --=20 <> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK) --=-heckyMTUp7tOfjNPO7uj Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJXRyAEAAoJEBZCeImluHPuVuwQAJPjwAEMguLoShW5Cn0JOKS1 Y0UwILYVo+1tuE7Kf1mT2HCKngH1CbO3eBZE/cTSqeStL2e4lFk5kFv0RKbZwM5t cNA6OVqkS6Zbl5DIc3Ae2Ad6Z7xNf5XZeZhFMB3lj7AIwLhI2K3kRFKdDojfykXQ p/ErorargLn42UiWvgR6AH+pHPp3B7kq3OND6C6cKqRVgDu9G0UXpYmoeTzgDG5x 8wUqMSKfMNUsIGpjgtDDMjlx3Pod0ZZvDufkMJQLfFD8T5yESoDnhXjFwk0sV6eV +GFZXfsEKKm2q5mNlPT88uc3DNPN+tTihYasKmU/eYZZ3upLX32cQ0QMVJMKdLTT RTEUXylnGhv9KG8XV5CLPAPvtiBn9SxkXrpyZr78M/KPFkSiyFO4F8JYQjJftTZW aK+Xs9YqPS0+NAxJUd7G+HrB9kCJcs5DJXAsfpYaj+qtmvwww0mIwerVC5C9S0ek fAzRJr2bqnmnTcNjv4adapGSmjRtykpBMY/6SBYSRQ2vZ4T3rRvd4HgCpNuj/P/8 kPR9i1g980kEM8Bv038t6bJN+Y3QUiREhkpmiuwF2GKZreAiaPxKlEo2iaeoayZv RaAv5zI1o4pCMKIJ+CeZ5VIeh2Gjz3U/NXa8mJb/o8An2x8KeSVgB+jomuRcF9sw 1q5mdvE6YvpUIgQb4q84 =68gt -----END PGP SIGNATURE----- --=-heckyMTUp7tOfjNPO7uj-- --===============2265717040547144950== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK --===============2265717040547144950==--