From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:58439) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S8IcQ-0002OK-4r for qemu-devel@nongnu.org; Thu, 15 Mar 2012 17:53:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S8IcN-0001uU-No for qemu-devel@nongnu.org; Thu, 15 Mar 2012 17:53:57 -0400 Received: from fmmailgate06.web.de ([217.72.192.247]:37703) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S8IcN-0001tl-Eb for qemu-devel@nongnu.org; Thu, 15 Mar 2012 17:53:55 -0400 Received: from moweb002.kundenserver.de (moweb002.kundenserver.de [172.19.20.108]) by fmmailgate06.web.de (Postfix) with ESMTP id F1336F1C0E4 for ; Thu, 15 Mar 2012 22:53:52 +0100 (CET) Message-ID: <4F6264EF.90709@web.de> Date: Thu, 15 Mar 2012 22:53:51 +0100 From: Jan Kiszka MIME-Version: 1.0 References: <4E859A76.2000808@siemens.com> <4F5B308B.6010401@web.de> <201203120039.46760.marek.vasut@gmail.com> <201203151912.47455.marek.vasut@gmail.com> In-Reply-To: <201203151912.47455.marek.vasut@gmail.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigA5ABBC5277A128A8200FA448" Subject: Re: [Qemu-devel] [PATCH 2/2] Drop obsolete nographic timer List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Marek Vasut Cc: Blue Swirl , Anthony Liguori , qemu-devel@nongnu.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA5ABBC5277A128A8200FA448 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2012-03-15 19:12, Marek Vasut wrote: > Dear Marek Vasut, >=20 >> Dear Jan Kiszka, >> >>> On 2012-03-10 07:19, Marek Vasut wrote: >>>> Dear Jan Kiszka, >>>> >>>>> We flush coalesced MMIO in the device models now, and VNC - for whi= ch >>>>> this was once introduced - is also fine without it as it has its ow= n >>>>> refresh timer. >>>>> >>>>> Signed-off-by: Jan Kiszka >>>>> --- >>>>> >>>>> vl.c | 13 ------------- >>>>> 1 files changed, 0 insertions(+), 13 deletions(-) >>>> >>>> This patch seems to break QEMU/PXA emulation for me on the ZipitZ2 >>>> platform. The serial console became very slow, but only when I type >>>> something in. The output from the device to the console is ok. After= >>>> reverting this particular one, the console behaves normally. >>> >>> Removing that timer removal likely just revealed some formerly hidden= >>> bug. Can you share the command line used for starting and some test >>> image? >>> >>> Jan >> >> qemu-system-arm -M z2 -pflash flash.img -serial null -serial null -ser= ial >> stdio -display none >> >> flash.img attached (XZ-ed) >> >=20 > Bump? I had a brief look: The guest is apparently polling the uart, IRQ delivery is disabled. But it also receives no timer ticks. I haven't checked how it progresses, maybe there is some loop counter used. What's the origin of this test image? Have you checked it works properly on real silicon? I do not know how this platform looks like in reality, how it should behave and should be programmed (by the guest), so I really can't compare and analyze, sorry. Jan --------------enigA5ABBC5277A128A8200FA448 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk9iZO8ACgkQitSsb3rl5xSbXQCeLmnUj9kpXllSjbgf/g/fxKMe N7UAnjzwA1Tfql6iNDQUqOvakcdiTgnD =oN2R -----END PGP SIGNATURE----- --------------enigA5ABBC5277A128A8200FA448--