From mike.gabriel@das-netzwerkteam.de Wed Jan 9 16:03:51 2013 Received: (at control) by bugs.x2go.org; 9 Jan 2013 15:03:51 +0000 Received: from freya.das-netzwerkteam.de (freya.das-netzwerkteam.de [88.198.48.199]) by ymir (Postfix) with ESMTPS id 63DB05DB0A; Wed, 9 Jan 2013 16:03:51 +0100 (CET) Received: from grimnir.das-netzwerkteam.de (grimnir.das-netzwerkteam.de [78.46.204.98]) by freya.das-netzwerkteam.de (Postfix) with ESMTPS id 411A5D8D; Wed, 9 Jan 2013 16:03:51 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by grimnir.das-netzwerkteam.de (Postfix) with ESMTP id 1A6AC3BA08; Wed, 9 Jan 2013 16:03:51 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at grimnir.das-netzwerkteam.de Received: from grimnir.das-netzwerkteam.de ([127.0.0.1]) by localhost (grimnir.das-netzwerkteam.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id u2lBAv60TRfZ; Wed, 9 Jan 2013 16:03:51 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by grimnir.das-netzwerkteam.de (Postfix) with ESMTP id EEDD23BA34; Wed, 9 Jan 2013 16:03:50 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by grimnir.das-netzwerkteam.de (Postfix) with ESMTP id D2B0F3BA08; Wed, 9 Jan 2013 16:03:50 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on grimnir.das-netzwerkteam.de X-Spam-Flag: NO X-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.3.1 running as userid= X-Spam-Level: X-Spam-Bayes-Score: 0.0000 Received: by grimnir.das-netzwerkteam.de (Postfix, from userid 33) id 7484E3BA34; Wed, 9 Jan 2013 16:03:50 +0100 (CET) Received: from 79-175-142-46.pool.kielnet.net (79-175-142-46.pool.kielnet.net [46.142.175.79]) by mail.das-netzwerkteam.de (Horde Framework) with HTTP; Wed, 09 Jan 2013 16:03:50 +0100 Message-ID: <20130109160350.53203djxdypttm8m@mail.das-netzwerkteam.de> X-Priority: 3 (Normal) Date: Wed, 09 Jan 2013 16:03:50 +0100 From: Mike Gabriel To: 28@bugs.x2go.org Cc: control@bugs.x2go.org Subject: Xfixes issues with Ubuntu precise and above MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=_35o3f94r34ye"; protocol="application/pgp-signature"; micalg="pgp-sha1" Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) H3 (4.3.4) This message is in MIME format and has been PGP signed. --=_35o3f94r34ye Content-Type: text/plain; charset=UTF-8; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit unarchive #28 reopen #28 retitle #28 Xfixes issues with Ubuntu precise and above thanks Re-opening this issue as it is not 100% solved and understood... The situation is: with extensions XFIXES enabled in nxagent/x2goagent we observe KDE crashes on Ubuntu precise and above. The crashes happen in kwin. The problem could be tracked down to some problems in libxfixes. The change must have been between libxfixes from oneiric and libxfixes from precise. On IRC I wrote this about the observed issue: 15:48 < sunweaver> siretart: I might have found the libxfixes issue with libxfixes since precise... 15:48 < sunweaver> at least I have several question marks... 15:49 < sunweaver> the xserver-xorg src package in precise has a patch named: 500_pointer_barrier_thresholds.diff 15:50 < sunweaver> this patches in xfixes v6 code into the xfixes v5 extension 15:51 < sunweaver> in that patch you can also see that the xfixes extension version is also incremented (5 -> 6) 15:52 < sunweaver> the libxfixes 1:5.0-4ubuntu4 and the package x11proto-fixes-dev 1:5.0-2ubuntu1 package also have patches for this improvement: both named 01_fixesproto-v6.diff. 15:54 < sunweaver> However, when looking at a build of libxfixes 5.0-4ubuntu4 I see a config.h file that announces itself with PACKAGE_VERSION 5.0. 15:55 < sunweaver> So, my current guess is that libxfixes annouces itself as v5 and also does a xlib-xserver version handshake based on v5, but then executes code from libxfixes v6 which then breaks nxagent. 15:55 < sunweaver> Is that possible? Can anyone comment on this? Mike -- DAS-NETZWERKTEAM mike gabriel, rothenstein 5, 24214 neudorf-bornstein fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb --=_35o3f94r34ye Content-Type: application/pgp-signature Content-Description: Digitale PGP-Unterschrift Content-Disposition: inline Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIcBAABAgAGBQJQ7YbWAAoJEJr0azAldxsxekkQAKrR2SXcxJhyvl0DwPbZnLO/ xiTo3TwB7f9EXmD9ZDiCnw9LkQCHSvN6EEaolKwcViK+zppfAxXsHpNaNDyZXj2T 6Zb7bAMpoJbI4AR75BOQpc5sOfL+Jro8yyXFsfH2udB0xV43OtIsuUvUE1dAngpA EZEPGBEbMKg6Iylm+U1nCEYy0CiU+SGY/xICoEJbkHw5G7a/XBnjnZLAgoRgiRtN 56VJNF8gvNb2AdceAZfBfpFChrDGSV3LOTwn01bN/4tGCQCnpMvaCXzKFnOhbLl/ whTmmwBAXFX47ZJM/v7LkjE1JYFTpEOWJSXntMPTNAjMdagp1J9d8fy7uewVFxGL +uiIfm7foljP2QNBIH1+dKfhFzSG1hdlFcZDnfuq7NbWhxbR+wAyQFclxHwlUD2z 7KBsIGO6z/vSF8mZL6coN7ZaaC2pX9V5esUyfZBmmPlSrmLEExbe9CIxSVa7Ovbx 4HAgg2w7VltHPuyL29bOVESI6SaHceBmrmUva/dThhDhZuxZUns+JjgeZs4hO32R zIP/Nrwzxk8G0r7Z3Ar6cUv6IlFi3ZRHC7vz1h15y70ZYLUk3J89l8ljOgReKHnk f3n0e9oCpRi5Bm4CeGxp5VeeKn2U4766MfTZ5KhWdzY05fADQObP2W2hntPM/efR JMLg/4RI/4bhnEP+Ul8e =Eogs -----END PGP SIGNATURE----- --=_35o3f94r34ye--