[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
I think it is unlikely to be the hardware at this stage. Here is a link: https://wiki.ubuntu.com/X/Troubleshooting/HighCPU to a page that describes troubleshooting procedures for high X loads. Could you please try the first procedure, i.e. killing processes one by one to see if one of them is causing X to show high CPU utilization? ** Changed in: ubuntu Status: Incomplete => New ** Changed in: ubuntu Status: New => Incomplete -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
Well, that was quick. It just froze again. And this time with 100% cpu taken by X. I was able to log in from another computer using ssh. That's how I got the top log. On the frozen computer, all I could do was to move the mouse pointer. No response from keyboard whatsoever. However, over ssh everything seemed to go quite smoothly... Strange! I'm beginning to think that my graphics card is broken or something... ** Attachment added: "Output from top when the bug happens." http://launchpadlibrarian.net/35757594/top.txt -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
I'll try to get one next time it happens! -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
It would be helpful if you could attach a listing to this bug of the "top" output when your desktop goes unresponsive. -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
I think I have run into this bug with the 185 driver. I got this problem once or twice since upgrading to Karmic. When I eventually was able to Ctrl+Alt+F1 and run top I could not see any specific process hogging the system even though the hogging continued at that time. -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
Thanks for the info. I guess we will have to wait until Nvidia post an updated driver and see what happens then. On Sat, Nov 7, 2009 at 4:01 PM, Phil wrote: > It seems that nvidia noticed there was a bug in their driver. The > website defaults back to 185.18.36 now, so they must have pulled 190.42 > until they get the bug fixed. > > -- > Karmic Frequently Hangs with 100% CPU > https://bugs.launchpad.net/bugs/473722 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in Ubuntu: Incomplete > > Bug description: > During regular usage (no particular program, website, HDD access, etc.), > the desktop hangs for 5-30 seconds. It'll happen while opening programs, > closing programs, navigating the web, navigating local and network drives... > pretty much any time. It'll happen several times within a 5 minute period, > and other times I can go 30+ minutes without it happening. Sometimes the > mouse freezes as well, and sometimes it'll move but it just won't register > any clicks. When function returns, my System Monitor applet in gnome-panel > shows maxed CPU usage during the hang. If I try to monitor processes during > this time with System Monitor or "top", it never shows me what application > is hogging all of the CPU because the window won't update process CPU usage > in realtime. I only see the history of overall CPU usage, but not which > process was using it. > > I found a similar bug at > https://bugs.launchpad.net/ubuntu/karmic/+source/usplash/+bug/439138 but > I'm not getting maxed Xorg usage specifically and it's not solved my logging > in/out. I'm not sure if this is the same thing or not. If it is, I > apologize for the duplicate. I have noticed that this appeared only > recently. I was using Karmic Beta since 1-2 weeks before the RC came out, > and I never experienced this until just a few days ago. I'm getting similar > behavior on my MythTV server/frontend, so I don't think it has anything to > do with my specific hardware. My initial conspiracy theory about a Windows > 7 dual boot (I installed Karmic 2nd) causing trouble also doesn't work, > seeing as my server has Ubuntu only. > > I apologize for the lack of information, but because I can't track it down > to a particular process, I'm not sure what log files I should post. If > there's something I can do to track which process it's getting hung up on, > please let me know. In the meantime, my system specs are: > > Desktop: > Ubuntu 9.10 - 64-bit > MSI P6N SLI Platinum > Core 2 Duo E6600 @ 2.4 GHz > 6 GB RAM, 2 GB Swap > GeForce GTS 250 w/ nvidia driver 190.42 > > Server: > Ubuntu 9.10 - 64-bit > Asus P5Q SE Plus > Core 2 Duo E8500 @ 3.16 GHz > 4 GB RAM, 2 GB swap > GeForce 8400GS w/ nvidia driver 190.42 > -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
It seems that nvidia noticed there was a bug in their driver. The website defaults back to 185.18.36 now, so they must have pulled 190.42 until they get the bug fixed. -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
** Changed in: ubuntu Status: New => Incomplete -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
Agreed. I'll reinstall 190.42 on my desktop later this week or over the weekend so I can get that info. -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
Something that would be worth trying on your desktop machine once you have established that the 185.18.36 driver is stable in your environment, would be to put the new Nvidia driver on and then disable Compiz. This would give us an indication of whether the new driver is likely to be the sole problem or whether we have two separate problems here, one with (potentially) Compiz on your desktop machine and the other with the NVidia driver on your MythTV box. I want to see you going well first but then I want to get to the root cause of these problems so that good bug reports can be submitted upstream and others can benefit from our work. -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
I updated my location in my profile, so hopefully that makes communication easier. Thanks for pointing that out! When you mentioned X-Windows, it made me think that maybe Compiz was the problem. The thing is, I run Compiz on my desktop, but I have compositing disabled on my MythTV box in order to avoid vsync issues. However, I do have the newest nVidia driver, 190.42, installed on both machines, whereas I had 185.18.36 up until several days ago. When I installed the Ubuntu 9.10 final release, I went to nVidia's site to get the driver and forgot that they had posted a new version. Either way, I've downgraded back to 185.18.36 and so far my system has yet to hang in the last hour or so (on either computer). I'm going to keep testing it through the rest of the week, but so far it seems like this might have been due to a change in the nvidia driver. Also, for what it's worth, I did SSH into my machine and run top from there. Most of the time compiz.real was hogging the CPU, but a couple times it was firefox. I didn't get a chance to try the same with my MythTV box, but considering the implementation of OpenGL in MythTV, I'm thinking that might have been what was tripping it up there (I don't have compositing running on that box in order to avoid vsync issues). Reading the info at nvidia's driver download page (http://www.nvidia.com/object/linux_display_amd64_190.42.html), it appears they added support for OpenGL 3.2 in that driver, so maybe that's what was causing problems? Don't close the bug quite yet, just in case it still occurs with the older driver. I'll post again in the next few days to say whether it's showed up again or not. Thank you for your help. -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 473722] Re: Karmic Frequently Hangs with 100% CPU
On the surface, this looks as if it might be a problem somewhere in X-Windows or the software that sits on top. The first step would be to capture the last ~200 lines or so of ~/.xsession-errors and post it here. The next step is to capture some information about what is happening during the freeze. The first thing you can try is to do Ctrl-Alt-F1 when a freeze occurs to bring up a low-level console and run top from there. If the system won't accept the key combination during the freeze, try the following. Remember that you can use Ctrl-Alt-F7 to get back to your desktop. 1. Make sure you have an SSH server running on the machine that freezes. 2. Run a SSH session to your freezing machine from your other machine. Use the low level console to avoid the possibility of it freezing also. 3. Once you are logged into your target machine, wait for a freeze then observe what top says. 4. Report back with success or failure, then we can see what the next step needs to be. BTW it would be helpful if you set your geographic location in your Launchpad profile so we know roughly what time you are likely to be available. -- Karmic Frequently Hangs with 100% CPU https://bugs.launchpad.net/bugs/473722 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
