Re: [Viking-devel] Real-time GPS support?
Hi List Robert, I only found out one important thing: viking only crashes if Autodownload Maps is enabled while using real time gps. If I do not select autodownload maps real time gps tracking works just fine. Good stuff, I've been able to reproduce it now - and understand the problem. However the solution is not obvious / easy :( I've attached my stacktrace (NB line numbers may be tiny bit different as it was run on my own development branch) I forgot to mention you need to break on gdk_x_error to (see http://wiki.debian.org/HowToGetABacktrace) There's basically a conflict between the tile map drawing and the gps keep it on screen which are done in separate threads. They both generate vik_layer_emit_update events, which eventually call the low level pixbuf to screen. I think If the timing is such that both of these happen near enough the same time the X server (quite rightly) doesn't like it. Potential solutions: . Use your workaround :) . Some kind of lock/semaphores in the viewport to serialize the X drawing . Some kind of redesign so only one thread updates the display . Something simpler (that doesn't come immediately to my mind..) These are a bit more involved than my level of Viking understanding. [Plus I'm really busy for the rest of this month] HTH. _ http://clk.atdmt.com/UKM/go/195013117/direct/01/ We want to hear all your funny, exciting and crazy Hotmail stories. Tell us now -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Viking-devel mailing list Viking-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viking-devel Viking home page: http://viking.sf.net/
Re: [Viking-devel] Real-time GPS support?
As promised some more debug information about viking crashing using real time gps support. I am using debian testing on i386 hardware, gpsd version 2.94-2 and xorg 1:7.5+6. Viking is the latest from git. Unfortunately there is no backtrace: [1]li...@debian:~/data/gps/source/viking/src/# gdb --args ./viking ~/.viking/default.vik GNU gdb (GDB) 7.0.1-debian Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type show copying and show warranty for details. This GDB was configured as i486-linux-gnu. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... Reading symbols from /home/lixus/data/gps/source/viking/src/viking...done. (gdb) run Starting program: /home/lixus/data/gps/source/viking/src/viking /home/jom/.viking/default.vik [Thread debugging using libthread_db enabled] (viking:2364): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property lat-attr for object `VikGotoXmlTool' can't be set after construction (viking:2364): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property lon-attr for object `VikGotoXmlTool' can't be set after construction [New Thread 0xb6a33b70 (LWP 2367)] netlib_connectsock() returns socket on fd 13 [New Thread 0xb5cffb70 (LWP 2368)] [Thread 0xb5cffb70 (LWP 2368) exited] [New Thread 0xb5cffb70 (LWP 2369)] [New Thread 0xb54feb70 (LWP 2370)] DEBUG: queue count=81 15933348 [New Thread 0xb4cfdb70 (LWP 2371)] [New Thread 0xb44fcb70 (LWP 2372)] [New Thread 0xb3cfbb70 (LWP 2373)] DEBUG: queue count=166 33833176 [New Thread 0xb34fab70 (LWP 2374)] [New Thread 0xb23edb70 (LWP 2375)] [New Thread 0xb1beab70 (LWP 2376)] viking: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0. [Thread 0xb1beab70 (LWP 2376) exited] [Thread 0xb23edb70 (LWP 2375) exited] [Thread 0xb34fab70 (LWP 2374) exited] [Thread 0xb3cfbb70 (LWP 2373) exited] [Thread 0xb4cfdb70 (LWP 2371) exited] [Thread 0xb54feb70 (LWP 2370) exited] [Thread 0xb5cffb70 (LWP 2369) exited] [Thread 0xb6a33b70 (LWP 2367) exited] [Thread 0xb44fcb70 (LWP 2372) exited] Program exited with code 01. (gdb) bt No stack. (gdb) And it crashes if you zoom in an out during realtime traking: I'll post a backtrace soon. -- ___ Viking-devel mailing list Viking-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viking-devel Viking home page: http://viking.sf.net/
Re: [Viking-devel] Real-time GPS support?
Hi, It still works for me! You are right, it still works. I just missed to compile viking against the new libgps, because I thought communication would go directly to the tcp port gpsd is listening on. And I think it is very useful instead of using a city map your co-pilot can help you navigating in cities you visit the first time. Unfortunateley it freezes if the gps receiver looses reception for a while or gpsd gets restarted. And it crashes if you zoom in an out during realtime traking: (viking:23304): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property lat-attr for object `VikGotoXmlTool' can't be set after construction (viking:23304): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property lon-attr for object `VikGotoXmlTool' can't be set after construction netlib_connectsock() returns socket on fd 9 viking: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0. I'll post a backtrace soon. Regards Lixus. -- ___ Viking-devel mailing list Viking-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viking-devel Viking home page: http://viking.sf.net/
Re: [Viking-devel] Real-time GPS support?
I'm not aware with gpsd communication. But I read on this list (or bug tracker) that our solution as to be improved. IMHO, a quite good solution can be to port to geoclue. If somebody interested in this topic... 2010/5/25 Lixus Zoran g...@muellers.ms: Hi, It still works for me! You are right, it still works. I just missed to compile viking against the new libgps, because I thought communication would go directly to the tcp port gpsd is listening on. And I think it is very useful instead of using a city map your co-pilot can help you navigating in cities you visit the first time. Unfortunateley it freezes if the gps receiver looses reception for a while or gpsd gets restarted. And it crashes if you zoom in an out during realtime traking: (viking:23304): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property lat-attr for object `VikGotoXmlTool' can't be set after construction (viking:23304): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property lon-attr for object `VikGotoXmlTool' can't be set after construction netlib_connectsock() returns socket on fd 9 viking: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0. I'll post a backtrace soon. Regards Lixus. -- ___ Viking-devel mailing list Viking-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viking-devel Viking home page: http://viking.sf.net/ -- Guilhem BONNEFILLE -=- JID: gu...@im.apinc.org MSN: guilhem_bonnefi...@hotmail.com -=- mailto:guilhem.bonnefi...@gmail.com -=- http://nathguil.free.fr/ -- ___ Viking-devel mailing list Viking-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viking-devel Viking home page: http://viking.sf.net/
Re: [Viking-devel] Real-time GPS support?
It makes sense to be able to use geoclue, but IMHO straight gpsd support should remain. The crash problems are likely not about the particular provider anyway. pgpkbgwPwy0qM.pgp Description: PGP signature -- ___ Viking-devel mailing list Viking-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viking-devel Viking home page: http://viking.sf.net/
