I have a kernel error that repeats itself every few seconds that Ubuntu is up. After a couple of hours my /var/log file is up to 625M. It doesn't seem to hurt anything, but I would like to know what's going on.
Here it is in my kernel log:
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Here is its first appearance in dmseg. It repeats mixed in with other stuff untill the end of the log.
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When trying to install RHEL 5.4 on a Flagstone SATA (encrypted hard disk), linux timeouts while loading the ata_piix module.
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata2.00: cmd 81/00:08:00:00:00/00:00:00:00:00/e0 tag 0 data 4096 in
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata2: soft resetting port
ata2.00: configured for UDMA/33
ata2: EH complete
The above message is repeated several times until the kernel eventually "panics".If I use a non-encrypted SATA (Maxtor, Fujitsu, etc), the install works. It only fails with Flagstone SATA encrypted hard disks.
i recently installed ubuntu 10.10 64-bit on my laptop and installed all the drivers and updates i saw. When i first started it up my top panel was a solid gray and had a classic look, i saw online that i had to do Alt-F2, type gconf-editor then go to apps,panel,global click locked down, then i log out, log back in and it is fixed with my system theme. after i restart my computer it has the same classic look, and i have to go back to gconf, log out, relog, log out, relog and it finally works. why is it doing this?
View 2 Replies View RelatedMy Ubuntu 10.04 freezes continually when it starts accessing the HDD. I will be working normally, then when i switch windows, it will suddenly access the HDD and spin up for 4 to 7 mins. I can't access anything during this period. The processor is generally only 1-5% impacted during this. I think its accessing the swap.
I admit, it's an older computer with only 2gb of RAM. Wondering how to debug this and if I should install an older version of Ubuntu to fix the issue. I've tried three different harddrives, so i know it's not errors on the disk.
I use Firefox, and Firefox has been crashing like crazy on me for the last few weeks. Does this constant crashing have anything to do with not being able to update from synaptic?
View 9 Replies View RelatedI am having a re-occuring problem with Grub. The problem seems to occur about once every 15 or so times that I start up. Basically, it gets past the Samsung branded screen but before it goes to the Grub screen, the computer will restart - it just continually gets to this point and restarts until I shut down with the power button. The problem is easily fixed by re-installing Grub using an ubuntu CD. Things will then run fine for about a week and the same problem will occur.
View 1 Replies View RelatedWithin the last couple of days or so, my wireless has been on the fritz. It keeps disconnecting and reconnecting every minute or so, which is annoying to say the least. The information relating to my wireless network is:
Laptop model: Toshiba Satellite L350
Wireless interface: Atheros AR5001 Wireless Network Adapter
Interface:
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I'm just having a bit of trouble with activating my wireless card (see title for details). rfkill - I installed it but nothing was soft / hard blocked (whatever they mean). I did the rfkill unblock command anyway but it didn't appear to change anything Tried doing it manually through system-config-network but this yielded no luck either. Basically all it does is continually ask for my WEP key, even though I've typed it in correctly a million times. why I don't have WPA2 because I do not have the ability to change it
View 1 Replies View RelatedRunning Debian GNU / Linux 5.0.4 on an older Gateway tower. Have been using this for a year now but it seemed lately that the browser was loading pages slowly. I checked the Network Icon and every time I check it indicates "disconnected" then refreshes and indicates connected. The log makes references to redat, which my machine has nothing to do with? I checked the system logs and get the following repeated messages:
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10.04 and Nvidia video card.
This sequence:
sudo apt-get purge nvidia*
sudo apt-get install nvidia-current
sudo update-alternatives --config gl_conf (not sure what to choose, I just pick an option at random)
sudo ldconfig
sudo nvidia-xconfig
and then restart gets everything apparently working correctly, with my desktop spread across two monitors.
However, after two or three computer restarts, it 'forgets' and defaults back to low graphics mode and all the common error messages mentioned in multiple threads here, with my second monitor just duplicating the primary monitor.
Under System-Hardware drivers it says Nvidia_current is activated but not in use, regardless of whether it starts normally or in low graphics mode.
What's up? It's a pain to have to go through that sequence over and over again, and then restart my computer every two or three days, and leaving the computer on 24/7 isn't an option. power saving and all that.
I have an MSI U100 Winbook with Ubuntu Workstation 10.04 LTS newly installed (about 4 days ago).
The update manager displayed about 15 or so updates for my 10.04 installation which I installed. Upon reboot, I can not successfully login to the desktop. It will take my username/password, the screen will go black for a couple of seconds, then the error sound, and back to the login dialogue.
A tail on /var/log/messages displays:
atkbd.c: Unknown key released (translated set 2, code 0xf7 on isa0060/serio0)
atkbd.c: Use 'setkeycodes e077 <keycode>; to make it known.
composit sync not supported
These messages keep repeating. I am able to login at the console just fine. I have enabled root login but get the same issues logging in as root. I have googled and found several articles and postings involving these messages but they are all in reference to upgrading from 9.x to 10.04. I did not upgrade and did not experience the freezing of applications as noted in those posts.
Does anyone know of an application that continually scans for devices on a network and notifies you if a device connects/disconnects to/from the network? I just want a way of knowing when a computer is connected and when it's not.
View 10 Replies View RelatedI have an Linksys NSLU2 with four usb harddrives attached to it. One is for the os, the other three are setup as a RAID5 array. Yes, I know the raid will be slow, but the server is only for storage and will realistically get accessed once or twice a week at the most. I want the drives to spin down but mdadm is doing something in the background to access them. An lsof on the raid device returns nothing at all. The drive are blinking non-stop and never spin down until I stop the raid. Then they all spin down nicely after the appropriate time.
They are Western Digital My Book Essentials and will spin down by themselves if there is no access. What can I shutdown in mdadm to get it to stop continually accessing the drives? Is it the sync mechanism in the software raid that is doing this? I tried setting the monitor to --scan -1 to get to check the device just once, but to no avail. I even went back and formatted the raid with ext2 thinking maybe the journaling had something to do with it. There are no files on the raid device, it's empty.
I'm trying to find a script that will return me the largest number of repeating characters. Say, I have the following line in a text file: 12345AAAAA6789AAA
I want it to return 5, because "A" is repeated 5 times in this line (more than 3 at the end).
Over the past few days I have been trying to install an older kernel (kernel 2.6.28.1) on ubuntu 9.10 64-bit WUBI installation. I compiled, installed, and updated my grub for the kernel. When I reboot, the grub menu correctly gives me the option of booting into the older kernel but when I do so I receive the following error message:
error: you need to load the linux kernel first.
I am at a complete loss on how to fix this. I even downgraded grub but I still get the same error.
I'm running Fedora Core 12 x86_64. I started out using the default bash shell (and customized the .bashrc, etc. as necessary) but had to switch to csh for this one scientific package that requires that shell.
The issue is that my $PATH has unwanted redundancy and I can't figure out how to fix it:
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The csh shell was completely new to me so I'm sure I made a mistake somewhere.
Below are the files that might be relevant for diagnosing this problem. I don't think I touched /etc/csh.login or /etc/csh.cshrc but I might have accidentally done so.
Code:
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I have seen command like $rm aa dd cc bb ee then something like $ >> zz // it removes zz also Where aa dd cc bb ee zz are the files in my directory. Do not know exactly.
View 6 Replies View RelatedUbuntu 9.04, all updates
Latest firmware, etc
abit SG-95 motherboard
2 GB Ultra DDR2
Intel Celeron 360 cpu
PNY GeForce 9500 GT video
Started 2 weeks ago, random and total freeze of system (video, keyboard, mouse).
Nothing useful in th log, other than it occurs at the same time syslogd restart show up in the log.
I don't even know where to begin, or how to troubleshoot the issue if nothing shows up in the log... could use some help, please.
Problem occurs with or without the nvidia drivers installed. Ubuntu or windows, same thing..connected or not connected to the internet
I've ran every memory test I can find, with no issues reported. HD seems OK. No other symptom that I can find, other than it croaking, usually when I'm in the middle of a broadcast or recording.
Is the only machine I have for now, I need to figure out what's wrong and replace it as quickly as possible, so I can get back to work.
I installed ubuntu on my laptop recently and would like to have trim support. (Because I have a ssd drive (crucial c-300 256gb). The current kernel that I am using is the 2.6.32 (standard lucid kernel I believe). Unfortunately TRIM support is only available from 2.6.33 and up. So I thought I'd install a new kernel using this howto:
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I want to create some files of a specific size containing a repeating pattern. I did some research and found that I can create a file and fill it with (fairly) random data by using dd like so: dd if=/dev/urandom of=myfile.dat bs=$(( 1024 * 1024 )) count=100 (Creates a 100 MB file.) I found that here: Quickly creating large files.
Rather than fill a file with random data, I'd like to use these patterns: 0xaa, 0x55, 0xff, and 0x00 (one per file). Is there a simple way to accomplish this?
I have a weird font problem that occur from time to time on fedora 12,I suspect gdm-user-switch-applet to be the culprit,but I can't say for sure.notice the weird 'r' letter.
View 1 Replies View RelatedBought computer 11 months ago, immediately there were problems. What would happen is, when I logged in after a long period of shut down, the system would BSOD. Then I would restart and everything would be fine, until the next time I shut down for a long time (8ish hours) and got back on. I sent the laptop in (a couple times) and they eventually replaced the RAM and the BSODs went away. This is all on Windows 7 (well started on Vista, switched to Windows 7).
I recently set up a dual boot with Windows 7 and Ubuntu 10.04. I'm experiencing crashes on Ubuntu (the whole system just freezes, can't operate mouse, keyboard, or anything) and the behavior is similar. When I log on after a long period of shut down, the system will crash, but if I restart (actually I have to wait 10 minutes before I restart, if I restart immediately it will crash again) then it is fine, until the next period of long shutdown.
So I'm thinking it's bad RAM, so I downloaded Memtest and am testing each of my sticks (they are each 2GB) individually in the same connector thing (don't know what it is called, whatever the sticks attach to). The test for the first one passed with flying colors. However, the second one is having problems. On test #2, the memtest repeats itself, continuously looping through 0-32767 errors on the right side.
My laptop is an Asus G50VT
The 2 most interesting lines...
Highest Error Address: 000fffffffc - 4095.9 MB // does this make sense? 4095.9 MB on a 2GB stick?
Test 2: 32767 // the 32767 loops back around to 0 and repeats
i could find is crunch2.9 password generator but at the moment it does not suport the function that i am looking for. My aim is to generate : 10-character combinations of the following characters (lowercase) 23456789abcdef with no more then 3 same letters repeates no metter side by side or within one line (sequence) so lets say
abcdef1234 accept
fabcde1234 accept
ffabcd1234 accept
which is probably permutation with repetable string ( where abc is not equeal to cba etc .so ti speak position does metter)
fffabc1234 not acceptable -----(3 same characters)
ffabcf1234 not acceptable -----( 3 same characters event thought not side by side)
so generally we dont want 3 same characters apper in same line.
I have 13.0 installed, everthing works OKI installed 13.1 on a separate partition, and dualbootWhen I use 13.1, there is a problem with sound.It's like in the old days when yu played an LP with a scratch, the track keeps repeating.When I move the mouse, sound will continue OK for a few seconds, then same problem.There is no difference, if I use KDE, XFCE, or just boot in runlevel 3 and use the command lineOnly thing I can find in the logs:Quote: May 28 06:37:10 cannabis kernel: hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.In 13.0, there is not such a line in the logs.Some info:Quote:
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
Subsystem: Fujitsu Technology Solutions Device 1107
Flags: bus master, fast devsel, latency 0, IRQ 22
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I have a usb wireless card called "edimax ew-7318" i used it for a year and it was great- worked out of the box. recently i've been having repeating disconnect problems every few minutes or seconds it will disconnect and then reconnect again
In system log i get:
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It seams like a physical hardware problem but i cant find any physical fault on the card itself.
I'm just installed OpenSuse 11.3 (64) on a 30gb SSD, hoping to get virtualbox 4.0 running to virtualize an instance of Windows 7.I went through some pain with my Nvidia video card and actually getting vb to install, but through lots of searching and tinkering got here.I created a vm in the vb control panel, but when I go to start it I get:
Code:
Failed to open a session for the virtual machine Win7Main.
The virtual machine 'Win7Main' has terminated unexpectedly during startup with exit code 1.
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I am using DEBIAN 6.0 and I wannna update my kernel from 2.6.32 to 2.6.38. Every time, I do it but after the installation & rebooting into the new kernel it gives me error "UNABLE TO BOOT INTO THE KERNEL".
View 1 Replies View RelatedDell laptop booting from a USB stick with a CentOS 5.5 minimum installation.
Uncompressing Linux...OK, booting the kernel.
Red Hat nash version 4.2.1.13 starting
sda: assuming drive cache: write through
sda: assuming drive cache: write through
mount: error 6 mounting ext3
mount: error 2 mounting none
switchroot: mount failed: 22
umount /initrd-dev failed: 2
Kernel panic - no syncing: Attempted to kill init!
1. Does minimum installation not drop on a kernel or initrd with ext3 support? I can't imagine that's true, but have to ask.
2. The USB stick is single partition ext3. Maybe there is some limitation specifically related to USB stick booting that requires boot to be FAT16 or FAT32? Except the CentOS 5.5 installer refuses to let me install on either FAT.
3. How can I do the equivalent of lsmod on a linux installation that will not boot? i.e. I have CentOS x86_64 running in VirtualBox, I can plug the USB stick in there, so how do I get information on the USB stick's kernel and initrd if I can't boot from it?
4. Is it possible to rebuild the i386 based initrd on this USB stick, when the computer is not booted from that stick, with a system that's x86_64 based?
System Info:
Dell Latitude i686 Laptop which has run CentOS 5.5 and Fedora 12,13,14 in the past, and boots from Fedora 14 Live CD transferred to a USB stick. So I know USB booting is possible on this machine, and this stick.
The process of creating the stick:
CentOS 5.5 i386 on a USB stick. Old Dell i686 laptop which has previously run CentOS 5.5 installed from DVD, and has successfully booted from this same USB stick holding transferred Fedora 12,13,14 Live CDs. CentOS 5.5 was installed onto the USB drive directly by the CentOS 5.5 DVD installer (running virtualized in VirtualBox 4.02 on Mac OS X 10.6.5.). No errors or complaints during installation.
For whatever reason, the installer did not do some things correctly. First Grub wasn't working correctly, I got that sorted out and have the Grub+CentOS splash screen, it finds vmlinuz and the initrd, and then I get a kernel panic.
Ext3 was built into the kernel and that's why I'm getting this message. I do not know how the installer would have dropped a kernel or initrd during instalation that that don't contain such a basic thing that obviously comes in linux kernel 2.6.18-89 EL.
Mainboard: ASUS A8N-SLI. X window manager:GNOME. When in wine application,such as starcraft or "Plants vs zombies",Sound is on for several seconds then mute several seconds then repeats......
Audio Controller info from Device Manager:
ALSA Capture
NVidia CK804 with ALC850
/dev/snd/pcmC0D0c
NVidia CK804 with ALC850
/dev/snd/pcmC0D1c
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i have spotted that script (something similar that i am looking for)
[URL]
and i just dont know how to use it.I am not a programmer myself and probably no need for learning that just to create one script! modify "wje_lq" script and run it. thing like : "Just redirect standard output to a file in the normal manner" ? and all this
I.Comment out the first definition of *character-set*, by adding a semicon at the beginning of the line.
II.Uncomment the second definition, which just uses "ABC", by removing the semicolon from the beginning of the line.
III.Comment out the first definition of *word-length*.
IV.Uncomment the second definition, which uses a word length of four.
i would like to generate :
10-character combinations of the following characters (lowercase) 23456789abcdef with no more then 3 same letters repeates no metter side by side or within one line (sequence) so lets say
abcdef1234 accept
fabcde1234 accept
ffabcd1234 accept
which is probably permutation with repetable string ( where abc is not equeal to cba etc .so ti speak position does metter)
fffabc1234 not acceptable -----(3 same characters)
ffabcf1234 not acceptable -----( 3 same characters event thought not side by side)
we dont want 3 same characters apper in same line.