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10
votes
4answers
24k views

Determining cause of Linux kernel panic

I'm running an Ubuntu 12.04 derivative (amd64) and I've been having really strange issues recently. Out of the blue, seemingly, X will freeze completely for a while (1-3 minutes?) and then the system ...
8
votes
3answers
14k views

How to determine why my computer crashed?

Yesterday, I ran a bash script for about 10 hours. When I went to use the computer, it locked up. I have an Eee PC with Debian. The screen was still visible, but the mouse or keyboard had not ...
8
votes
3answers
982 views

How can I recover after Kate crashes?

I use Kate for coding and note-taking. Sometimes it crashes - often when I've got a lot open. Unsaved 'real' documents (eg, ones backed by files, that have been saved at some point) usually have a ...
6
votes
2answers
317 views

Why do some applications stop working when permissions are changed in /usr/bin?

On OS X, a friend of mine changed the permissions on /usr/bin recursively using Finder, in order to grand write access to everyone. Here is how it's done: Go to /usr/bin in Finder, then mess with ...
6
votes
1answer
1k views

Trouble Logging Kernel Panic for Debugging

I'm running Ubuntu 12.04 on AWS/EC2 and having a large number of hosts going belly up. I'm trying to enable kernel dumping, but when I simulate a kernel panic, there's no .crash file written anywhere ...
5
votes
2answers
78 views

bash crashed with for loop [duplicate]

The question may be trivial but with this simple for loop for i in {1..10000000}; do echo "$i" line >> file done my shell crashed after some elaboration time (the tab in the terminal emulator ...
5
votes
1answer
923 views

Debugging a Segmentation Fault

I have an application that runs on an embedded Linux device that I am expanding with new features. The new features require GLib so, I am dynamically linking the required libraries to the application. ...
4
votes
1answer
138 views

How long should I wait between keystrokes when doing SysRq + REISUB?

I read this from here: The most useful combination is the Alt+SysRq/Prnt Scrn + R-E-I-S-U-B. The above basically means that while you press and hold Alt+SysRq/Prnt Scrn and press R, E, I, S, ...
4
votes
1answer
1k views

System freezes. Can't find anything in the logs

My linux desktop system freezes (aptosid/debian sid) sometimes and after a reboot I can't find any infos about the reason for the freeze in messages/dmesg/syslog/Xorg.*.log. When it "freezes" I can ...
3
votes
2answers
736 views

Is there a way to tell how many times my computer has rebooted in a 24 hour period?

I was doing a 24 hour code-a-thon and had to reboot numerous times and was wondering if there was a way to tell exactly how many the computer was rebooted or crashed.
3
votes
3answers
3k views

Black screen when installing Fedora 16

I have read many other threads here and elsewhere but found no solution... I'm trying to install Fedora 16 x86-64. At random points during installation I get black screens that do not go away. I ...
3
votes
1answer
284 views

Why does abrt take over log output for a process that didn't crash?

Short version: I have a long-running process (web proxy) that logs (verbosely) to syslog Something bad happens, and abrt steps in somehow The process continues to run... ...but all log messages to ...
2
votes
1answer
1k views

How to get last crash log from ArchLInux

My system suddenly crashed, I have restart it, where could I find the last/previous crash log, since there are no /var/log/syslog* anymore..
2
votes
1answer
482 views

Since Ubuntu persistent USB crashed, it fails to boot with black screen pre-login, what to do?

I'm using a persistent live USB version of Ubuntu 13.04. Recently it crashed while I was using it. When I restarted I couldn't get past the Ubuntu logo with the sequentially flashing dots anymore. ...
2
votes
1answer
257 views

What are files in `/var/crash/`?

I know when a program crashes, some files creating in /var/crash/. But I don't know what these files are! Is that error logs?
2
votes
2answers
2k views

After crash, e2fsck fails with weirdly high block numbers/sizes

After a breaker trip a Raspberry Pi of mine started to halt boot with kernel panic (same message as here). This is a Raspberry Pi running Raspbian, so it runs from a SD card, from a main ext4 ...
2
votes
1answer
63 views

Where do drafts go when mutt crashes?

Sometimes a message doesn't get sent for whatever reason (e.g. a crash or shutdown). I can't find the message in the Drafts maildir (/new, /tmp, or /cur). Surely mutt must save the message somewhere ...
2
votes
3answers
190 views

Is Firefox for Linux generally unstable? [closed]

Started using Firefox in the early days and have used it as main browser for a long time. Under Windows, where I used it a lot until approximately 2011, I generally seldom had problems with it. ...
2
votes
1answer
675 views

Linux crashing my DD-WRT router

I'll start off that I'm new to Linux. A couple months ago I tried installing Ubuntu 11.10 on a laptop (HP). The install went great, however when setting up my wireless network, it caused my router ...
2
votes
2answers
2k views

Troubleshooting kernel panic — next steps after analyzing `crash` dump

I'm running an Ubuntu 12.04 machine with an Intel i7 CPU. Every now and then, it freezes up completely -- the machine and display stay on for a minute or so, the audio that was playing (if any ...
2
votes
1answer
229 views

How to debug random reboots, with no kernel panic, of an embedded system?

I have two aValue RPC-10W1 embedded systems that reboots by themselves after 1-2 hours. Facts: The board will reboot within a time span of 1 to 2½ hours. The issue is present on two identical ...
2
votes
0answers
33 views

Can the hard drive timeout be disabled in Linux (attempting task abort)

Unfortunately, when a hard drive (usually a virtual drive) is slow, Linux aborts requests to that drive after a timeout, possibly causing data corruption. Last time this happened to me, I had 2 vms ...
2
votes
0answers
80 views

Linux Mint (LMDE) suddenly crashed and won't boot again

I was working on my linux machine earlier today and when I was in the middle of updating my java packages through the package manager and installing coffee script, my windows started not working and ...
2
votes
2answers
655 views

Finding error log related to specific crash in Ubuntu

Every time I try to start a specific program (Mathematica), my Ubuntu session crashes and I get thrown back to login screen. I want to find out 1) what is it exactly that crashes (probably X) and 2) ...
1
vote
4answers
1k views

Why does my linux keep crashing?

I am running Debian 6.0 Squeeze. Every half hour or so a dialog pops up on the side of my screen with the message - Kernel failure. A report has been sent to the developers to help them fix the ...
1
vote
2answers
152 views

Fedora 20 Crashes on Older PC

I have an older PC that has been flawlessly running Windows XP for several years. Since Microsoft discontinued support for XP, I want to install the latest version of Fedora. While trying to install ...
1
vote
5answers
942 views

How to debug whether restarts are caused by software or hardware?

A newly build Linux debian 2.6.32-5-amd64 #1 SMP Sun Sep 23 10:07:46 UTC 2012 x86_64 GNU/Linux server suffers numerous restarts. 'last -x' output shows: root pts/0 192.168.254.11 Sat ...
1
vote
2answers
83 views

How to see what processes WERE running?

Is there a chance to get the processes that RAN before my system crash? EDIT What I really want is to see the past processes. My system crashed & I want to know if a specific process was the ...
1
vote
2answers
30 views

Why doesn't this sequence of keys, using SyRq, work

I have Fedora 20, with zshell and Mate desktop. I have just come across this article about using SysRq keys, but they don't give the results shown there. I am using Alt with the key marked "Home" ...
1
vote
2answers
579 views

Running `sudo /sbin/service mysqld start` causes system to crash

OS: CentOS 5.10 Service: Amazon Web Services Attempted to remove MySQL 5.0 and install MySQL 5.6 I had a server set up, and was going to use MySQL, but it was was set up with MySQL 5.0. Since ...
1
vote
1answer
112 views

How to know I am using vi or emacs input?

Crash shell allows to specify the command line editing mode to vi or emacs. What will be the difference in these input methods? I am not asking about the internal features.
1
vote
4answers
722 views

crash shell: any way to check if a command executed Successfully

I'm automating a test using crash package. Is there some thing like $?, which can be used to check if the previous command executed successfully or not inside a crash shell? For example, when ...
1
vote
1answer
122 views

Not using specific memory regions due to errors

I have just installed some new RAM (2x1GB, 667, sticks from 2x512MB, 533, sticks) into an old system (perfectly valid), and all was working fine, until now. I have been having some issues when the ...
1
vote
4answers
2k views

Why does VirtualBox crash when I finish the install of BackTrack?

I have a windows 7 64-bit machine in which I have installed VirtualBox and decided to install BackTrack. The installation finished fine, but when it asked me to "please remove installation media and ...
1
vote
1answer
38 views

Screen session terminates when program crashes

I am running a program in a Screen session if the program crashes it restarts itself, but when the program crashes the screen session terminates. I want the screen session to stay open so the ...
1
vote
3answers
306 views

New Computer keeps crashing on fresh install

I have a brand new HP Envy dv7-7212nr, second one, because I thought there was something wrong with the SSD with the first one. After I install Debian Testing or Mint, I compile the wireless drivers. ...
1
vote
1answer
467 views

Behavior of rsyslog writing to a pipe

I configure rsyslog with an additional entry, like this: *.* |/var/log/logpipes/pipe1 and have my own evaluation program for the messages received. This works so far, but I am unsure, how rsyslog ...
1
vote
1answer
190 views

Gnome 3 crashes while creating new Password Keyring

I'm using Sabayon 10 with Gnome 3. The problem is Gnome crashes and restarts when I try to create new Password Keyring. Passwords and Keys > + > Password Keyring > 'typing name & passwords' > ...
1
vote
0answers
44 views
+50

how to fix this: cinnamon stopped. your system is running in fallback mode

yesterday, I found out that the mint 13 xfce installation is acting different then before. I noticed that my dad's account was not looking it should normally. I tried my mom's account and when logged ...
1
vote
0answers
35 views

OpenSUSE 13.1 Cannot Find a Bootable Device After Update

I have just installed OpenSUSE 13.1 on a computer. After that, I did a zypper update and a reboot and the computer would not boot. The error message was something like "no bootable device found". I ...
1
vote
1answer
36 views

Does the NICs have any kind of log?

Recently I had an issue with my server, my nagios couldn't ping it and lost connection with the NRPE daemon, in my host provider interface I could see the server was ACTIVE but either I couldn't ping ...
1
vote
0answers
62 views

Linux Oracle - Random crash CPU Stuck

I have several Linux oracle VMs running under hyper-V. Kernel version is 2.6.32-358.el6.x86_64. Sometimes, the VM stuck, we still can ping it, but we cannot ssh, or through the hyper-v console this ...
1
vote
0answers
222 views

SSD Crash Randomly on Linux Mint 17

I'm running Mint (17 Qiana 64bit) on a fresh install on a new laptop (Dell N5110) with a new Crucial MX100 SSD and twice now the whole system has frozen up. If I switch to a text terminal (as in ...
1
vote
0answers
55 views

probably gfs2 problem

We have a Mail Server (CentOS 6.5) with these component: Postfix Dovecot Mysql MailScanner (spamassassin,clamav) GFS2 Partition Last night the server crashed and this is the kernel logs before ...
1
vote
0answers
105 views

Debugging a “brutal” system hang (no longer responds to Alt+SysRq+B)

I've had a series of system hangs where I hoped to get a crash dump to at least get some clues but the normal "magic sysrq" functionality is broken too; not even the immediate reboot key works. The ...
1
vote
0answers
303 views

Vbox crashes while installing RHEL 6.5

I'm using Vbox 4.3.10 to run a RHEL 6.5 vm. Host is Win 8.1. All goes well during installation until the very last moment when I press REBOOT, then VBox crashes. I should mention that the first ...
1
vote
0answers
258 views

I get this shutdown prompt, then my laptop dies. What is happening?

I get a dialog box that says 'Shut down the system now', the same as if I had clicked 'quit' in the main menu. This happens seemingly randomly. If I choose 'cancel', it sometimes goes away. Other ...
1
vote
0answers
82 views

Diagnoising a hardware issue on linux

I have a laptop that completly turns its self off after an unpredictable amount of time. It also doesn't allow for its self to turn it back on after a period of time. To me this sounds like an issue ...
1
vote
0answers
280 views

Hardware problem after fresh Linux Mint install

I've installed Linux Mint, Mate 64bit on my machine. My configuration: Desktop PC HP Pro 3400 Series MT Processor: Intel Core i3 2120 @3.30GHz Chipset: Intel Sandy Bridge Graphic Interface: ...
0
votes
1answer
42 views

Is hardware helping reducing crashes of OS X? [closed]

I am taking an OS course this semester, and we mentioned that device drivers can cause about 85% of crashes(for Windows). My understanding is that: since many personal computers are configured with a ...