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6
votes
2answers
99 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 ...
3
votes
3answers
64 views

Mount filesystems after boot to avoid fsck delay for sshd

I'm trying to optimise the overall downtime and improve availability in case of system failure. I'm specifically concerned about the reboot (e.g. after a kernel panic) taking so long that I don't ...
2
votes
1answer
14 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
1answer
34 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
0answers
40 views

Kernel crash on Fedora distribution but no sign of kernel panic

I am running kernel 3.14.4 on Fedora 18. I am experimenting with a kernel module I am making. The module has a bug (at least one) and crashes the kernel. Sometimes I see a stack trace on my frozen ...
2
votes
2answers
537 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.
0
votes
1answer
43 views

Access Windows File System From Linux OS

My sister's computer has stopped working. I am not entirely sure what the problem is, but I think it is a Windows/software issue. She really just wants to retrieve the pictures off it. I am ...
1
vote
0answers
33 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
59 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
137 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 ...
0
votes
1answer
50 views

Why do I get dropped into a GRUB rescue console? [duplicate]

I've been setting up my environment on a fedora 20 64bit, the last week. After a restart tonight I am unable to boot into my system. It boots into this terminal/prompt and it says: [ Minimal ...
1
vote
1answer
322 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
2answers
568 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 ...
4
votes
1answer
98 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, ...
1
vote
2answers
325 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 ...
0
votes
0answers
58 views

Opening TTY or using IBus freezes Linux?

For some reason, whenever I open a TTY, if I switch back to X11, it will be completely frozen except for the cursor. The exact same thing also happens whenever I use IBus to switch to ibus-mozc for ...
2
votes
2answers
320 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) ...
2
votes
2answers
880 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
312 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. ...
0
votes
1answer
70 views

How to generate kernel crash dumps? [duplicate]

I have X running on terminal 1 and terminal 2 on my RHEL 6.4 system. If i randomly switch between tty1 and tty2, the system crashes. I need to generate crash dump file to analyze the issue. How can I ...
1
vote
1answer
105 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.
0
votes
0answers
149 views

Linux server crash (kernel NULL pointer dereference + soft lockup - CPU#1 stuck)

I have a Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux server that keeps crashing, usually once every 24-72 hours. I'm running lighttpd, mysql, haproxy and a couple of always-running ...
1
vote
0answers
225 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
72 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 ...
2
votes
3answers
173 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. ...
1
vote
4answers
441 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 ...
0
votes
1answer
218 views

The application gnome-panel has quit unexpectedly

I'm getting the following error on a Solaris machine when logged in via VNC. The application gnome-panel has quit unexpectedly. The two options I see are Restart Application and Close. I would ...
0
votes
1answer
3k views

Auto-restart an process when it crashes

I have an app that I need to autostart when the OS starts. I am running in a CentOS 6, so I am using a LSB init script placed in /etc/init.d. So far this is fine and working. Now....besides that, ...
1
vote
3answers
270 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. ...
8
votes
3answers
671 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 ...
1
vote
1answer
97 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 ...
0
votes
1answer
93 views

Can't access server after rvm install

I messed up my server yesterday, and im not quite sure how to get it straight again. After trying to install SiriProxy by severall guides failing one after the other on the step for rvm and ...
6
votes
1answer
987 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 ...
6
votes
4answers
16k 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 ...
1
vote
1answer
381 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
5answers
706 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
0answers
255 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: ...
1
vote
1answer
172 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' > ...
0
votes
1answer
184 views

Fedora 15 Crash after xorg.conf file update

I updated my xorg.conf file looking to set up a dual screen system. Unfortunately, I can't provide you this file because when I went to reboot my system crashed. The last line I get when I try to ...
0
votes
1answer
268 views

How can bad OpenGL calls cause whole system crash?

I'm developing OpenGL game and I've copied portion of code with similar function code was partially modified for it's new function, but there was still some bugs. This code was calling OpenGL ...
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 ...
0
votes
1answer
552 views

Impossible to login after crash [closed]

I am using Fedora 16. I have downloaded MySQL Server and tried to start it; while doing so my Fedora hung. So I shutdown by pressing the power button. When I try to log in next time then this error ...
2
votes
1answer
974 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 ...
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 ...
5
votes
1answer
701 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. ...
7
votes
3answers
9k 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 ...
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 ...
2
votes
1answer
599 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 ...
4
votes
2answers
3k views

How to enable crash reports/core dumps/stack trace logging globally?

Crashing bugs can be the most annoying ones, leading to data loss, downtime and frustrated users. It would be good if applications crashed less. Because of the complexity of the machine context, ...