Ubuntu :: Unable To Access KDE Desktop Due To Segfault
Apr 16, 2010
For the past few weeks my system has been exhibiting some strange behavior. The first of these instances has been in the form of a total system lockup necessitating a power cycle -- ie. no kernel panic or oops, but cessation of all on-screen activity and an unresponsive mouse and keyboard. ( The first lockup occurred when the monitor was powered down)
Just a few days ago, I started noticing something else : Launching Firefox (3.6.4pre) resulted in it locking up near start-up especially if I was logged into Gmail. After that I experienced a total system lockup and then another one which has placed me in the situation as suggested in the title.
Specifically, KDM and the KDM login manager will start-up and I will be allowed to type my password. Immediately after that when the first of the icons in the KDE start-up animation starts to come into focus the screen goes black and I am returned to the KDM login manager -- I can enter my password again and continue this process ad infinitum.
Trying to diagnose the issue, I attached GDB to KDM. It seems that after I enter my password one or more of the KDE start-up processes dies with signal 1 or to be more specific :
Code:
Program received signal SIGUSR1, User defined signal 1.
0x00007f4ae742d3c3 in select () from /lib/libc.so.6
(gdb) bt full
I decided to install Karmic on an old desktop system with the intent of using it as a backup system for my data. Having installed this as a fresh install I again followed the earlier advice only to find that when I attempted to connect to the BBC I was asked to load flash. This happened no matter which station I attempted to listen or view.
As far as I can see everything has been installed exactly as on my laptop and therefore should naturally work as before. The only difference is the laptop is using 64 bit and the desktop 32. Since I now see that the desktop is also capable of 64 bit processing should installing the 64 bit Karmic help?
Using sysinfo does not give too much information. I am told that the CPU is an AMD Athlon 64x2 Dual Core processor 4400+, 1000.000 MHz & L2 cache 512. The graphic card is shown as VGA Compatible Controller and the Sound Card as a multimedia Audio Controller.
I am at a loss why I am being asked for flash on the desktop and not being able to have the same benefits as I have on my laptop running the same OS.
Running Ubuntu 9.10. In the Remote Desktop config dialog I get: "Your desktop is only reachable over the local network. Others can access your computer using the address 127.0.0.1 or tabatha.local." I understand this means only the loopback ip address is available. All my other machines show their true local ip address (e.g., 192.168.1.104) in this dialog. Thus I cannot log on to this desktop from other machines.
When I try to do a remote logon from another Ubuntu 9.10 box (or from an XP box using a VNC viewer), I get: "Connection to 192.168.1.102 has been closed." What steps are needed to make this machine show its actual ip address? All file sharing between the various machines is working properly and all windows shares back and forth between XP and 'nix, and among the the vaious XP boxes and linux boxes are available as designed.
I can't remotely access my desktop when the desktop is asking for a keyring password. Why does this happen? it means that remote access is useless because you would need to enter the password locally before you can vnc to it. I do not wish to disable the default keyring but is there a way of making vnc work so I can enter the password.
ok so i ran into a problem, im using web min to access my server, and im setting up postfix and, dovecot first problem is i want to be able to access my email account from a web page, with log in, so my question is how can i do that?
I managed to configure my W890i phone to get access to internet through an ubuntu-based computer. It's very easy to use the phone to give internet access to the computer, but the opposite is quite more tricky. For that I've done the following
----On the phone---
-Set the USB network option to "through computer", so that the phone uses the computer's internet connection and not the opposite.
-Decide and set "Shared Network" parameters: user, pasword and workgroup.
-In "conectivity-> internet connection" set "allow local network" to "yes"
----On Ubuntu 10.04---
-Install samba, samba-client, smbfs, smbclient, firestarter and dhcp3-server
-Configure Samba (System-> Administration-> Shared folders): same workgroup as in the phone, add new user (the phone), passwd this new user. In my case the user was called "w890i" and the password given was the same.
-Once the phone is connected to the computer through USB (then select "phone mode"), a new connection appears in NetworkManager: usb0.The aim is to create a shared network that gives internet access to this device. Edit the IPv4 parameters of this new connection, set them to Manual and give an IP adress (192.168.0.1) and a subnet mask (255.255.255.0); the rest of the fields are left empty.Connect this network.
-Set firestarter to use dhcp3: sudo ln -sf /etc/init.d/dhcp3-server /etc/init.d/dhcpd
-Launch firestarter and follow the wizard. Set "allow internet shared connection", choose the device for the primary internet access, and then the device for the shared network (usb0). Then change the settings for firestarter: activate DHCP for local network, set IP to the one we gave before (192.168.0.1).
-Open dhcp3-server config file sudo gedit /etc/default/dhcp3-server And set INTERFACES="usb0"
-Set the policies of firestarter: in incoming connections, allow connections from the IP adress given to the phone (192.168.0.1). Then add rules for the ports that need to be open for this connection. I opened HTTP, HTTPS, SMB, SMTP, POP3, IMAP, IMAPS, DHCP for all the connections in the local network.
-Apply policies and start the firewall.
------------
After all this, the phone can access the internet through the computer. Two problems appeared:
1. I couldn't get access to https sites, like webmails. The phone gave a "communication error". But then I tried with Opera instead of the browser built in the phone's firmware, and I could finally get to https sites.
2. I couldn't retrieve mail, neither POP nor IMAP nor IMAPS. I thought it was a firmware problem again, and I tried out several mobile phone email clients written in java, but none of them worked.
So this is at the moment the problem. If I connect from the phone to the internet directly through 3G, the email clients work for all my accounts. I don't think it's a firewall problem, because the ports are opened for this connection
I've been running a Samba server under RedHat 8 for five years without a hiccup. I want to cut over to a F10 box but cannot get shares accessible. smbclient attempts fail over NT password error. SELinux is disabled. Server is visible on the network. Users require no password access to shared data.
smb.conf follows:
# Samba config file created using SWAT # from UNKNOWN (>) # Date: 2009/06/12 14:15:15
When attempting to run pSX on Ubuntu 9.04 (and the 9.10 livecd), it crashes with a segfault. I -have- read [URL] and tried shutting down pulseaudio as recommended there. However:
How do I get pSX working? I tried copying the psx.ini file from another machine because the thread says pSX works fine after you change the sound device used, but it still segfaults when I try running it.
I am on a fresh install of Narwal. I've switched to classic because unity wasn't mature enough IMO. Just installed ccsm and now my display will crash randomly after running for a short while.
Code: daniel@orange:~$ compiz --replace --debug compiz (core) - Debug: Could not stat() file /home/daniel/.compiz-1/plugins/libcore.so :
Im having a serious issue with booting ubuntu 10.04, the issue being it wont boot up at all, after working so well for so long (i suspect some recent dodgy system updates are responsible) so I decided to just reinstall ubuntu from scratch again but wanted to retrieve some important files from my root device. So I am running the live desktop and I can see my previous filesystems under places but cannot mount or open my original root device where the files I want to recover are located, I receive this error msg:"Unable to mount 77 GB Filesystem.
I'm running Ubuntu 10.04, and for some reason I get a segfault whenever running programs with OpenGL. I ran "lspci | grep VGA" in the terminal and this is the output:
Code: 02:00.0 VGA compatible controller: ATI Technologies Inc M92 [Mobility Radeon HD 4500 Series]
I have tried to setup a workstation with 3 monitors on two ati videocards, the goal being to span the desktop across all of them.
The process was not difficult at all, but after login X11 crashes and I am left with a console. I am fortunately able to login in safe mode, but I would like to ask for help in debugging this issue.
Here I will try to give as much detail as possible, starting with my system specifications:
Code:
The first card, the ATI Radeon HD 4650 is capable of running two monitors at the same time. The monitors, for all it matters, are three identical ACER P206HV 20" connected with their analog interface (due to missing cables which I will buy soon). Resolution 1600x900 each. My motherboard is an AsRock 870 Extreme3 mounting an AMD Athlon II X4 640 3 GHz processor and 8 GB of RAM.
When asked by Ubuntu, I installed the ATI Caralyst driver version 11.6 and set it up for using Xinerama.
As I said, this setup works fine if I login in safe mode, but crashes X11 otherwise (even in classical mode - no Unity). By inspecting the logs (attached) I found this (notice the segfault)
Code:
As a test, I tryed to configure Catalyst without Xinerama, an this works, but of course I end up with two separate desktop, which is not what I want. In this mode, xrandr seems to work correctly
Code:
After some research I found that XRandR does not support desktop spanning over multiple GPUs, so Xinerama is the only way to go in my case. Since the two are not compatible with each other, after login in safe mode I see that XRandR is disabled
Code:
One more test consisted in disabling the XRandR module in the config files, as found in some posts: edits in /etc/X11/xorg.conf
Rhythmbox crashes on startup, Clementine crashes once I try to play any file, Banshee crashes after the first second of any file. Totem actually still works, but it's not a very satisfying media player. :P This occurred suddenly after working fine for, well, months. I read that I should check whether I have the standard up-to-date gstreamer/pulseaudio/liborc versions installed, this seems to be the case.
I am running 11.04, and was running under Unity, and then moved back to Gnome 2.23.1. I am having a segfault occur any time I click on the window menu icon for any window. Once this occurs all the menu bars disappearing and I cannot move any of the windows, minimise/maximise, and while I am able to close most windows via their menu's it is really annoying! To get it back up I have to call gtk-window-decorator from the command line. This is how I found out it was a segfault.
Code: ** (gtk-window-decorator:18789): CRITICAL **: Could not find frame info xd0u0012x8fu0008u0001 in frame type table Segmentation fault
automount[9052]: segfault at 60 ip 00007f75c15bcd7c sp 00007f75c0753c30 error 4 in lookup_hosts.so[7f75c15b6000+1b000]/etc/hosts...10.226.219.46 zbv6 zbv6.gud.s.atcd /net/zbv6/home
So, now we know where exactly the problem occures. I know only these three commands to debug using gdb. But in case of ns-2 code, I don't know how to use gdb.
I changed a routing protocol's C++ code in ns-2 and successfully recompiled ns-2 but when I run any tcl script with that particular protocol, I get 'segmentation fault'. Now I want to trace what part of the code is causing this. I have tried using 'printf's at suspectable places. Is this possible to debug ns-2 code with gdb just like the segfault.c above? I am useing fedora 9.
I am trying to write a peer to peer application in C++ using pthreads library. There are few types of nodes that run in the program. The 'beacon' nodes form the core of the network. The ordinary nodes 'join' the network by sending join requests to the beacon node. So, my program runs till the join requests and responses are received. When I try to 'connect' using connect function from the socket library, I get a segfault. I am not sure if the segfault occurs for the connect function, because sometimes the program just runs to completion. It could be an issue related to threads or memory allocation.
When I run gdb, it shows me the following: Code: (gdb) run b2-n00.ini Starting program: sv_node b2-n00.ini servant:12600> [New LWP 1] [New LWP 2] [New LWP 3] [New LWP 4] [New LWP 5] [New LWP 6] Before Exiting[LWP 1 exited] procfs: fetch_registers, get_gregs line 3768, /proc/23952/lwp/1: No such file or directory.
I usually use the following command to join several PDF files in one :gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=output.pdf input1.pdf input2.pdfHadn't have to do it for a while but today, I needed it and thus fired my script.lam! gs segfaults.A quick internet search and I found this :https://bugs.archlinux.org/task/22006Though Arch related, while I'm running slackware64-current, the behaviour was exactly the same as mine.In the above thread, one guy linked to a bug report which seems to be theculprit :http://bugs.ghostscript.com/show_bug.cgi?id=691831gcc 4.5.1, gs 9.00, x86_64, indeed, slackware64 seems to be exactly in that situation.
Has anyone had any luck getting a slackbuild to work with the newest version of skype 2.1.0.81? I tried with the static binary but when I go to execute skype I get a segfault. I also tried with a different slackbuild and it doesn't work either.
I have a custom program that has been running on Slackware since about 2004. It was running fine on Slackware 13.0, but an upgrade (following the procedure in UPGRADE.TXT) to 13.1 causes the program to segfault on a read/write op to the serial port (details here).
what might have changed between 13.0 and 13.1 that might affect serial port programming? I've been through CHANGES_AND_HINTS but nothing is jumping out at me.
when open an pdf and close the tab/windows at firefox I get the error at syslog: kernel: npviewer.bin[21396]: segfault at 0000001000000000 rip 00000030abe2646c rsp 00007fffb0978ca0 error 4
I have a newly installed centos 5.5 x86_64 running as a guest on a xen environment. I've installed httpd, mysql, php, mod-php, cacti and some how mod-php i causing apache to exit with segmentation fault. I don't understand whats causing the problem, I have similar boxes with the same setup that works.
I have a problem with KDM. No matter what I do, it will not give me access to my desktop. (Yes, I have entered the correct password, and I know that because when I intentionally enter a wrong one, I get red lines saying so). I have tried in recovery mode, other kernels, and the failsafe session. Console login does work. I have seen another similar thread and followed some instructions, but it was about GDM and it didn't work out.
I have ran genkdmconf, but to no avail (except it gave me a new face icon ). My other operating systems (Windows Vista and Ubuntu 11.04) do work normally. [EDIT: I do have an idea what's causing this because yesterday I flashed my BIOS from A11 to A17. I don't think this is the cause of the problem though, but some of you may disagree]. Of course it's not my first preference, but if a reinstall is necessary, I am one of the lucky few with a separate /home.
I was using GParted to move and resize a few partitions on my external HDD that I use for backup purposes. Well while this was going on, I was using Opera to reply to a post on the forums and Opera segfaulted, which in turn crashed GNOME. Gnome restarted, I logged back in, my external HDD was still reading/writing furiously and GParted won't open.
So I know that the GParted I started is still running, although the handle that GParted had on its GUI is still locked - so I can't open a new GParted GUI - and the existing GParted GUI has closed - so now I can't check on the progress of my partition operation.
