Ubuntu :: Intermittent Lockups Since Upgrading To 9.10
Jan 4, 2010
I have Ubuntu running on a Compaq desktop. Version 9.04 ran great but since upgrading to 9.10 it intermittently locks up. There is no rhyme or reason to the timing. Sometimes it is immediately after logging in but usually it is after the system has been running awhile. Sometimes it happens when I'm actively using it and sometimes when it is idle. It has never happened at the login screen, no matter how long I leave it.
Note that it is not a complete lockup. The mouse cursor moves, but no longer functions (i.e. you can't click anything). The keyboard does not work at all. For example Ctrl-Alt-Backspace and Ctrl-Alt-F5 do nothing. Disconnecting and reconnecting the mouse and keyboard does not help. Also, I can still access the system over the network using SMB and SSH, which leads me to believe that X or Gnome is where the problem lies.
Here are the troubleshooting steps I have done so far. As I said I can access the system using SSH, so I logged in and ran "top" to view CPU utilization. I found no process using more than 1% of the CPU. Also I examined the messages log and found "segfault" errors related to libc (?), USB and my keyboard, so as a test I traded my fancy wireless keyboard for a generic one. That has not helped. I'm not sure where to go from here. I've examined other logs but it is all Greek to me. There are entries that sound as if they could be errors but I'm not sure and the times of the errors don't match the times of the lockups anyway.
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Jan 2, 2011
I've been having a problem with intermittent stuttering in video and audio playback since upgrading to Maverick (it also happened when I briefly installed Lucid). It started out as the odd skip every 20 minutes or so but now it can happen 5 or 6 times in 10 minutes when watching a film. I've tried:
reformatting and clean installing using a half-dozen players installing every codec I could think of (only after the normal ones wouldn't help) diangosing my 3 hard drives (the problem occurs on them all and they're not in a RAID setup) changing then changing back my video drivers disabling pulseaudio and ubuntuone-sync (these were not installed in my previous, working setup) looking at every relevant log file (mplayer, smplayer, demsg...) I know of running ubuntu's testing utilities I'm out of ideas. Going back to Jaunty is the only solution I'm pretty sure will work but it's not exactly ideal. It will be a few months a least before I'm able to install a completely new distro.
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Jan 5, 2011
I"m a newish Ubuntu user, but have been running some flavour or other for the last 5-6-7 years. Anyway, I just recently installed Maverick and have to say it's polished compared to the last version I tried ( maybe 6? ).
I am however having a frustrating issue while surfing the web. After a 2-3 minutes using firefox, 5-10 minutes using chromium - the whole system seems to lock up solid. The mouse/ keyboard no longer respond. I've read through a few log files and nothing seems to stand out, though I may be looking at the wrong place. I plan on running some system monitors, and top when I get home to see if they show me anything. Just thought I'd come here to ask for any other things to have a look at.
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Jun 2, 2011
I am on 64-bit Natty and for the first time since my install a month ago, I have had a system hang requiring a power-off restart. It happened yesterday and a few moments ago.My question is that I want to troubleshoot this myself and wonder if the activities that my system were running just prior to crashing are recorded in a log file somewhere.I used to look int /var/log.messages or /var/log/boot, but this was in the Maverick days.
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Sep 1, 2011
I've tried searching all over the place, and I'm drowning in outdated and contradictory information. I have a brand new Netgear WiFi PCI adapter. The exact model is "WN311B-100NAS N300" The related output of lspci is
Code:
03:06.0 Network controller: Broadcom Corporation BCM4321 802.11b/g/n (rev 01)
lsmod returns:
Code:
Module Size Used by
lib80211_crypt_tkip 17387 0
wl 2568244 0
lib80211 14991 2 lib80211_crypt_tkip,wl
[code]....
So, I know it's using the BCM4321 chipset and wl driver. Ubuntu detected this card without any trouble, and I was able to use the "Additional Drivers" application to get it running before disconnecting my ethernet.
The card works well, and is very stable until I try to download a file larger than a few MB, or try to play a video stored on my home network. As soon as I try either of those, my computer locks up hard. No error messages. Just a hard lockup that I can't get out of with anything short of holding down the power button on my case until it cuts the power supply.
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Jul 29, 2010
I had this problem at times with 11.2 as well; I use GNOME. I have intermittent lockups when invoking the screen saver either while idle or soon afterward while using Firefox; problem seems to not show up if I do not use a screen saver when idle.
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May 14, 2010
Since upgrading to lucid, I have been experiencing regular system lockups. About once a day, my X desktop will disappear and I'll see a TTY with a few old console messages and at that point everything is completely frozen and I must hard reboot.
I have checked out various logs in /var/log and found nothing at all that indicates the system knew anything bad was happening. What is the correct approach to try to narrow this down?
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Mar 7, 2010
it only seems to happen when im using wicd to change wireless access points several times in a short time span. i havent done anything out of the ordinary, installed packages off of sbopkg, and built my own kernel, but this happens in the stock kernel toothe following is what appears in syslog each time it happens
Code:
Mar 7 13:12:14 null kernel: [ 1.714177] WARNING: at arch/x86/kernel/hpet.c:404 hpet_next_event+0x5f/0x81()
Mar 7 13:12:14 null kernel: [ 1.714969] Hardware name: 3241
[code]....
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Dec 20, 2010
I have a fresh install of CentOS 5.5 on small thin client system with a 80G HDDs, 1 GB ram [URL], I have run into an issue where the system just locks up and freezes and I can no longer access it, cant ping it, cant use webmin and cant view its web pages. The system seemed to be running fine unitl I left it to do some updates via webmin as it informed me there were 118 updates. I really only use the system as a LAN captive network server, and it is currently in the testing phase for this setup. The install went on with no issues and it ran fine, but now every so often within 12 hours it just locks up and I have to reboot. kdump shows no logs so I am finding hard to work out what is going on. but have installed it on 5 of my servers 4x ibm x335 and this . I intend to use the mini server for a captive portal system displaying advertising and promotions to wireless clients.
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Mar 8, 2010
My Ubuntu Karmic running system experiences random lockups. There is no pattern in when it will happen, it can go for days without one, or happen every couple hours. Only thing I can notice is that it happens most often when I run Firefox, but when it happens, it happens regardless of me having Firefox open on a website with lots of Flash content or not. When the lockup happens, I cannot move the mouse - the led light on my mouse shuts off, I can't move the cursor, the whole UI becomes unrensponsive, there is no blinking lights on the keyboard, REISUB does not work, only hitting the reset button on my case helps. After reboot, there are no indications of errors in any of the logs that I can see.I have ran memtest for 24 hours, and it completed without errors.
Additional information:
1. LSPCI output:
Code:
00:00.0 Host bridge: ALi Corporation M1697 HTT Host Bridge
00:01.0 PCI bridge: ALi Corporation PCI Express Root Port
00:02.0 PCI bridge: ALi Corporation PCI Express Root Port
[code]....
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Jul 3, 2011
wat is the advantage of introducing softlock feature in rhel? How user/admin will be benifitted if softlockup events are occoured? on the contrary, server dies if softlock happens.We hardly can take some preventive action against softlockups, but most of the times we are not able to do anything about softlockups?
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Oct 17, 2010
I have installed the fglrx driver from "Hardware Drivers" and it runs fine, until I launch gnome3 or gnome-shell, it then just locks X (its not hard locked, I can CTRL + ALT + 2/3 etc out) but I cant do anything else.
If I use the mesa / xorg driver its fine.
The trouble is I play one game, and I need the fglrx driver for that game, the mesa one corrupts the 3d engine
It wouldnt be a pain, but i am one of the few who seems to find gnome-shell an improvement, and I get really frustrated when it wont work.
Any idea's on what I can try, other than hopfully having a working system when ATI launches the 10.10 driver on its website (although the leaked rc had the same issue) I only recently got a ATI card so I am pretty new when dealing with the ATI cat's.
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May 25, 2011
I don't know if these are related, but I have had occasional lockups, where no input has any effect and then it shuts down, and am usually unable to resume from suspend on closing the lid.
Here are the specifics. Thinkpad x120e, AMD e-350, ATI radion 6310 graphics, Intel 320 series SSD 80 GB, no bluetooth.
The ethernet and wireless cards, as given in lspci, are
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
[Code].....
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Sep 29, 2010
i am trying to upgrade to ubuntu 10.04 from 8.04, and am getting this warning:"Upgrading may reduce desktop effects, and performance in games and other graphically intensive programs.This computer is currently using the AMD 'fglrx' graphics driver. No version of this driver is available that works with your hardware in Ubuntu 10.04 LTS.Do you want to continue?"should i continue? i have no idea what a 'fglrx graphics driver' is
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Mar 12, 2010
Every so often while browsing, DSN fails. The thing is that if I DIG the address at the command prompt the site immediatly pops in in Firefox. what I should do to diagnose the problem.
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Apr 8, 2010
I've been running into issues with VLC crashing now and again, particularly when seeking through the current item using the bar (as opposed to Ctrl-Right Arrow/Left Arrow); it may have happened in a few other spots, but that's usually when I'm not at my keyboard. All files are stored locally on my HD, mostly .avi video. For the most part, when I'm using VLC, I've got Firefox and maybe a Nautilus window running as well. CPU use, Memory use, and System load stay pretty well down (and I've never managed to get my swap usage above 120MiB of the 1.2GiB on the Swap partition).
I've tried removing and reinstalling VLC, no dice; about screen lists Ver 1.0.2 Goldeneye. A side effect of this is that, until I restart the system, the screen is unable to be put to sleep at it's timeout; in the notification bar of the top panel, an icon appears and (if the mouse is left there) a little box will appear with text as follows:
Session active, not inhibited, screen idle.
If you can see this text, your display server is broken and you should notify your distributor.
Please see [URL] for more information.
The URL there listed doesn't have any information that seems to be useful, but, I'd presume that VLC does something to prevent the screen turning off while it's playing (a situation where most folks aren't going to be typing or mousing around), which is undone when VLC ends cleanly (and re-opening, then exiting doesn't fix it).
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Jul 12, 2010
I use an Ubuntu 10.04 minimal install with only the packages I want, I like to keep things pretty slim.
On bootup, when I execute "startx", everything starts to load, this is fine. However, just off of a cold boot with only my startup apps running, conky shows around 450mb of RAM usage. It usually is only around 150 - 175.
Sometimes when I boot my computer Conky shows the normal RAM usage in the 150mb range, sometimes it's in the 450mb range.
My startup apps when I start X is openbox, tint2, wicd-gtk, feh (for wallpaper), and conky.
I open up htop when conky reports the weird RAM usage. htop also shows the weird RAM usage but I can't seem to find the memory hogging app.
Is this a kernel issue? I'm using the vanilla Ubuntu 10.04 kernel. Will recompiling from kernel.org fix this?
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Oct 15, 2010
On a cold start-up or after some package installations on re-start I get this message:
"The disk drive for /home is not ready yet or not present".
My disk partitions are:
Swap - 4 gig
/ - 25 gig
/home - remainder of 120 gig drive. about 96 gig
Last error: Installed the numlockx package and made the modification to .../init/Default.
Error on Cold start this AM.
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Feb 19, 2011
I've recently managed to get upgraded to 10.10, however I'm having a few issues playing audio from Rhythmbox. I've installed Amarok which is working fine, but with Rhythmbox, the track plays, but no audio comes out, however if I skip through the track, say to halfway, the audio suddenly comes back - however it does this for each and every track, or completely skips some tracks with an error symbol next to it - however if I skip back to that track and fast forward through it, it will play. I've also installed Banshee which has exactly the same problem.
I've been messing about reinstalling gstreamer and various other bits and have finally narrowed the problem down to the hardware settings within sound preferences - If I set to Analog Stereo everything works perfectly - but when set to 5.1 just Rhythmbox and Banshee fail - everything else is absolutely fine - system sounds play, flash videos play, Amarok plays - the sound test within sound preferences also works for each speaker. I've been googling around for this problem but can't seem to find a lot of info on this
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May 14, 2011
I'm having a new issue with my Ubuntu 10.10 box. I've been trying to fix it for the past couple of weeks but have been unable to find any thread anywhere that closely resembles my problem. The computer seems to run very well most of the time with no indication of anything being wrong. I have a dual display setup where one monitor exclusively runs XBMC. Every 24-48 hours or so, I'll experience a hard crash.
Usually at night while I"m sleeping, so it's been very difficult to pin point the exact time of the failure. Both displays are off (as if not receiving any signal), however the computer is still powered on. I've tried SSH'ing to the computer with no success, and other processes that I'm usually able to access off of my LAN (SABnzb, etc..) I can no longer connect to. Is there a log file I Should be looking at to try and determine the cause of the crash?
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Jun 8, 2010
I am having a very strange problem with my sound card. I have found that occasionally when I boot up my system the sound card is not detected. I could understand that there may be driver issues if it was never detected but it usually works again after a reboot. I read that it might help to switch to ALSA so I switched the audio input and output to ALSA and thought it had fixed the problem but I just noticed that the sound card was not connected on my most recent boot up.
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May 19, 2010
I upgraded my Dell studio 1555 to Ubuntu 10.04, and now I don't seem to be able to stay connected to the wireless for more than a few minutes. Network manager never notices the disconnect, and it will usually reconnect on it's own in 10-15 minutes, but it just cycles like this endlessly. The wireless worked perfectly in 9.10 and I'm not really sure what is going on. Has anyone else seen this behavior, or maybe has an idea of something I can try? In addition I am having a problem with my laptop freezing. This happened in 9.10, but was very infrequent, now it seems to happen multiple times a night, and seems to be associated with my wireless making a connection. I'm currently posting from my Win7 partition because ubuntu us mostly useless right now.
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Oct 26, 2010
I'm using POP yahoo and it usually works, but often I will get a popup saying unable to connect to POP server... Error sending username: +OK maildrop ready, ... If I cancel & try again later it usually works. The error is getting more frequent.
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Dec 30, 2010
I have been running 10.10 server with no GUI for a few months without issue. I decided to install ubuntu desktop (GUI), because I want to turn it into a media server, and I'm finding that my Internet browsing fails intermittently. i.e. I can get [URL] sometimes and sometimes not. I have tried traceroute and found that I do not reach my local router on addresses that fail, and yet I get a full trace on addresses that are ok. Ping tests too.I remember from some time ago that the GUI may cause a network problem but I'm not sure.
By the way, other computers on the network can access this host through Samba so the NIC is working fine.
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Jan 16, 2011
Just recently I've been having strange connectivity problems with my wireless network. The connection has previously worked fine and haven't had any problems with it. I haven't installed anything that would have affect it as far as I know. how do I go about testing the network to see where the problem lies? I'm running Ubuntu 10.10 with a Netgear WG111v2 wireless adapter and my guess is it is some strange configuration problem or a rogue application is eating up packets because the system works fine when I boot it up into Windows.
When I try to ping my router I'll usually get something like 98% packet loss. However in the output below, the network sprang to life half way through my pings so it went up to 63%. What other tools can I try to find out what's going on?
Code:
alex@obsidian:~/dev $ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1a:4d:4e:03:3f
UP BROADCAST MULTICAST MTU:1500 Metric:1
[code]....
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Apr 1, 2010
I'm running Federa12 on my Asus EeePC 1005HA and I can't upgrade my system because my network connection flakes in and out. I'm connecting to the D-Link DIR-655 802.11n router. Any hints or ideas? I'd rather solve this than just plug-in the ethernet cable.
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Mar 7, 2011
I have Fedora 13 installed on a new PC and have two types of intermittent boot hangups. What logs exist within Fedora 13 that may help me identify the cause or causes of these hangups? Todate, a reboot gets over the problems but I wish to get this sorted whilst the PC is still under warranty.
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Sep 20, 2010
rhel5.5 rhcs cluster and xen kernel . now the cluster is running . the service ccsd .cman ,and rgmanager does work on both of the cluster member host. now I have a connecting problem when access the cluster virtual IP from different subnet clients. the clients in the different subnet with the cluster virtual iP access the VIP , the connection is intermittent ,while the clients in the same subnet of the VIP access the cluster VIP the connection is always on.
could anybody tell me , does the xen kernel has impacts to the cluster , or is this only a networking problem not a system problem? I monitor the switch mac table, find that , the mac of eth0 is always changing . so maybe it is xen kernel problem. I refer to some xen materials , the eth0 is a virtual adapter .and the original physical adapter eth0 is renamed as pth0 and works as a bridge .so how could I fix a mac address to eth0 ?
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Jun 24, 2011
This was originally posted on the Ubuntu forum, but someone suggested it might be a hardware problem, so I've re-posted (and updated) here: Quote: Originally Posted by Girts My shiny new Dell has developed a booting problem over the last few weeks. The Dell splash comes on for up to 10 seconds, screen turns Ubuntu purple for up to 20 secs, then 'no signal' message is displayed by monitor and screen goes black. Hard drive light goes off, mouse and keyboard don't respond.
When the Dell engineer came to replace a suspected failing hard drive, he realised the noise was coming from the fan on the graphics card (ATI Radeon HD6670). I mentioned the PC was reluctant to boot first time, so he replaced the whole graphics card. However, the PC is still intermittently reluctant to boot first time (3 tries a few days ago, but OK since).
Before I call Dell again, I want to be sure it's actually their problem and not a Ubuntu/Linux thing! I'm not fluent in Linux, but has anyone got any thoughts on this?
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Mar 27, 2010
Using my usb mobile broadband dongle I am able to access the internet about 25% of the time. I am able to make a connection to the '3' wireless network 100% of the time, but often Mozilla and all other applications that rely on an internet connection do not recognise that this connection has been successfully established, and give me error messages claiming there is no internet connection.
I can't discern any pattern as to whether the connection will be recognised or not. When it isn't recognised, the only solution is to disconnect and reconnect to the network. Sometimes this works and sometimes it doesn't. Sometimes restarting the computer fixes the problem, and sometimes it doesn't. I also have access to a wireless network at uni. I have no problems using this network whatsoever. Housemates using the same dongle on Windows have no problems. I'm using an Acer Aspire one, the dongle is a Huawei e220, I'm running Ubuntu 9.10. I have only recently reinstalled the operating system and have not needed to mess around with any network settings to get the usb dongle to 'work' the way it is currently.
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