You have been subscribed to a public bug: I have a simple java program that causes X windows / Gnome to hang with my hardware if you perform a few simple steps.
I'm using 64 bit ubuntu, Linux Kernel 2.6.31-17-generic, with java version "1.6.0_16" Java(TM) SE Runtime Environment (build 1.6.0_16-b01) Java HotSpot(TM) 64-Bit Server VM (build 14.2-b01, mixed mode). I've had the bug happening on older versions of java too (back to 1.6.0_12). If you want me to submit this bug report to java then let me know, but this bug doesn't happen on other operating systems with java, so I think it's possibly a linux/gnome bug. Here are the steps to reproduce the problem. You need a recent version of java 1.6 installed. 1. unzip the attached folder and cd into it. 2. run the java debugger by typing "jdb" 3. in the java debugger, type "stop at src.MainClass:45" 4. in the java debugger, type "run src.MainClass" A window should open that displays a drop down item. Change the drop- down item from A to B. This causes X windows/Gnome to hang. The mouse pointer still moves but you can't click on anything (i.e. nothing responds to mouse-clicks). The java code attached is the minimal code I could create that causes the problem. It took hours of crashing my OS and rebooting to get it that far, but it probably can go smaller. ProblemType: Bug AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: ALC660-VD Analog [ALC660-VD Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: ALC660-VD Analog [ALC660-VD Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mike 2288 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xfe028000 irq 22' Mixer name : 'Realtek ALC660-VD' Components : 'HDA:10ec0660,1019c601,00100001' Controls : 21 Simple ctrls : 13 CurrentDmesg: [ 30.192529] eth0: no IPv6 routers present [ 32.227378] NET: Registered protocol family 8 [ 32.227382] NET: Registered protocol family 20 [ 173.920021] Clocksource tsc unstable (delta = -180718118 ns) Date: Wed Jan 27 21:15:41 2010 DistroRelease: Ubuntu 9.10 HibernationDevice: RESUME=UUID=cbbd2f63-d2e7-4544-8995-82c9d961cacc IwConfig: lo no wireless extensions. eth0 no wireless extensions. Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 003: ID 03ee:5617 Mitsumi Bus 002 Device 002: ID 05bc:0102 3G Green Green Globe Co., Ltd Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub NonfreeKernelModules: nvidia Package: linux-image-2.6.31-17-generic 2.6.31-17.54 ProcCmdLine: root=UUID=af17a3ba-39c0-4374-8f2e-5713f1f31689 ro quiet splash ProcEnviron: PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-17.54-generic RelatedPackageVersions: linux-backports-modules-2.6.31-17-generic N/A linux-firmware 1.25 RfKill: SourcePackage: linux Uname: Linux 2.6.31-17-generic x86_64 WpaSupplicantLog: XsessionErrors: (gnome-settings-daemon:2312): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed (polkit-gnome-authentication-agent-1:2400): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed (nautilus:2366): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed (firefox:2802): GLib-WARNING **: g_set_prgname() called multiple times (nautilus:3057): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed dmi.bios.date: 05/31/2007 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: 6.00 PG dmi.board.name: NF-MCP61 dmi.chassis.type: 3 dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd05/31/2007:svn:pn:pvr:rvn:rnNF-MCP61:rvr:cvn:ct3:cvr: ** Affects: xorg (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug -- a java program that causes X windows to hang https://bugs.edge.launchpad.net/bugs/513482 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp