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Kernel bug at at fs/dcache.c on XenServer

Yesterday on of our servers running Xen 6.5 restarted, in /var/log/messages I found following messages: Apr 29 11:52:59 server kernel: [7476681.051566] ------------[ cut here ]------------ Apr 29 ...
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1answer
229 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 ...
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0answers
295 views

Kali crashing on boot after install? (VMWare Workshop 12 on Win8.1)

I have my VMWare set up and working, I have a download of Kali as an ISO, I load it in the virtual machine software and give it 1.5Gb of memory and 30Gb of storage, both more than is needed I've been ...
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2answers
5k views

What are the files located 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?
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0answers
20 views

Failed to start Crash recovery kernel arming

When trying to login into CentOS 7 either through the Gnome GUI or the login shell, I get this: After a second, I get booted backed to the login shell, or login screen of Gnome. I've tried booting ...
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0answers
29 views

Big crash out of nowhere?

So I was using my laptop (drawing in Krita with a Wacom tablet on Debian Wheezy) and the screen suddenly turned blue (like a Windows crash dump) and now looks like the attached image: Does anyone ...
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0answers
19 views

Ubuntu 14.04 crashing when 2 monitors are plugged in

The title is pretty self-explanatory. Ubuntu 14.04 is crashing, but only if 2 monitors are plugged in. If I start my computer with just the main monitor everything works fine. What is weird is that ...
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0answers
27 views

Help debugging a kernel oops

My system has been freezing up for a while, and I keep seeing this particular kernel oops: syslog. Xorg.log Here's another similar crash from a few months ago. syslog Can you help me debug this? How ...
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0answers
28 views

Random Black Screen Crash Ubuntu 12.04

I recently backed my pc up and did a fresh install from the same 12.04 cd I always use and since have experienced frequent and what appear to be random crashes. It seems like some kind of driver issue ...
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1answer
44 views

Application takes KDE down with it when it dies

How is this possible? I am using Toggl Desktop, stable channel, under KDE, and about 50% of the time, after I do xrandr --output DP1 --auto --primary --output eDP1 --off Toggl Desktop crashes soon ...
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1answer
59 views

How to debug an Out of memory crash

Recently one of my CentOS6 server crashed because of an Out of memory Error: It seems to be related to the postgres database used by java web-applications (deployed on tomcat). But I cannot find ...
0
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1answer
24 views

Crash with input/out error and swap unmounting [duplicate]

I am looking for hints on this problem. I've searched around, but can't find something exactly similar. I am running Debian 8 stable, updated, very minimal install (i3wm, small number of apps ...
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1answer
54 views

How to find what causes my notebook to crash?

I have a new notebook and it crashes frequently. $ uname -a Linux bpgergo-notebook 4.2.0-27-generic #32-Ubuntu SMP Fri Jan 22 04:49:08 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -a No ...
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1answer
87 views

Kali Linux Graphic Interface = Black Screen

Helloe veryone ! I have Kali Linux since a month now, and the "F7" just crashed. When I boot, I can go till the Grub, I boot (I can see around 5 "[FAILED]" instructions in the list), and finally, ...
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0answers
43 views

Why would Fedora installation crash when using an Nvidia card with SSD, but not in other configurations?

I want to share you a mindblowing problem and want to listen to your ideas. I have a computer (i5, 4GB RAM, etc) Had a Gigabyte NVidia 210 graphics card in it along with a 500GB HDD. Was about to ...
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1answer
73 views

How to crash a Linux PC at a specified time? [closed]

I am working on a security use case where a linux PC can fall in the hands of an enemy who may gain access to the system (asking password at gun point) etc. I am looking for a technique (a short ...
3
votes
1answer
47 views

Pausing a process with -SIGSTOP for long enough causes Kernel Oops Stack Overflow

I am running the process mpg321 on a Raspberry Pi 2. mpg321 plays .mp3 files and to pause the music, I have a hotkey that enters sudo kill -SIGSTOP [pid of mpg321]. This works great, except for when I ...
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3answers
2k 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 ...
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0answers
80 views

PHP app crashes: child pid exits with Illegal instruction (4)

I have a CentOS 6 server with Apache and PHP. I run some application and can constantly reproduce this crash. After some sequential action the app dies and the only trace I found is the following ...
3
votes
1answer
63 views

Investigate an unwanted shutdown over the weekend

This morning my machine running Fedora 22 was in a state of shutdown showing, IIRC, something like the following, in fullscreen white on black terminal: [Rebooting] ... System halted. After holding ...
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0answers
14 views

Examine application crash

Today I wanted to try out Visual Studio Code on my Gentoo machine. So I downloaded the x64 distribution zip file and started the application when suddenly X11 crashed and restarted. Unfortunately I ...
1
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1answer
47 views

After my system crashed and I run crash, but I get the following error: not a supported file format

My system crashed and even though I haven't been able to know what caused the crash after going through the usual logs: messages, dmesg, secure, etc. There's nothing valuable I have seen on them so I ...
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1answer
116 views

Debian 8.2 computer freezing+crashing randomly

I have a Debian media server which seems to be crashing several times daily for no apparent reason at all. It simply freezes up, without restarting, until you manually restart it. I have uploaded the ...
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0answers
20 views

Diagnosing regular crashes with data loss?

I'm on Kubuntu 15.04 on a HP zBook 14. Every few days, my computer locks up completely - screen stays on, sound get stuck and plays the last few tenths of a second of what ever was playing over and ...
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0answers
75 views

Xrandr handing in Gnome 3

Some time ago I opened this question on SE. In a nutshell, I am running: Debian 8 stable, updated; Intel graphics i3wm, no DE running when I use just i3wm. Also have Gnome for fallback solution (in ...
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0answers
71 views

Citrix Receiver on Ubuntu crashes and I cannot kill it, have to hard reboot

Using latest Ubuntu LTS and Citrix Receiver icaclient 13.2.1.328635 Citrix will periodically crash and there is no way for me to force the app closed. I've setup key shortcuts to the kill command, ...
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0answers
278 views

Linux mint has just crashed - Jessie 8 (LMDE)

As per title, I did a normal update to the system last night and after reboot my computer just stopped working and keeps falling back to 'fallback mode'. I tried to reinstall Cinnamon without success. ...
1
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1answer
270 views

Issues with X and xrandr on Debian

I am having an issue that I think is associated with X, xrandr and maybe WM I am using. I am on Debian 8 stable, updated; Intel graphics, i3wm, no DE lightDM (not sure if this is relevant, but at ...
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0answers
168 views

How to figure out why Linux crashes

Every so often, my laptop will crash. The screen will freeze, including the cursor, the lock lights (caps lock and the like) will turn off if they were on, though my battery, power, and wifi lights ...
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0answers
77 views

Bluetooth Visibility Crashes UI on Linux Mint

I'm running a Lenovo laptop. I have had driver problems for a while now, and am planning to perform a re-install of Linux Mint when I have the time and I can make sure that it won't interfere with my ...
0
votes
1answer
413 views

Qt Creator crashes on startup, but it worked before

I installed the latest Qt version (5.5.1), and Qt creator worked fine, I could build programs with it. However, after I installed cmake, downloaded opencv from source, and built it, Qt creator no ...
2
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1answer
148 views

How do I crash Ubuntu Linux 14.04 LTS deliberately?

I'm trying to crash an instance on AWS so that I can simulate what happens when it gets 'stuck'. I tried the top suggestions here How to cause kernel panic with a single command? but unfortunately ...
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0answers
41 views

Finding the Process which resulted in Kernel Panic

I have setup my linux system to generate Kernel Core Dump using KDump and kexec packages. I am using the crash tool to analyze the core dump. How do I find the call stack of the process which ...
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1answer
85 views

Missing core dump

I have a crashing application, which crashes with the output: Aborted (core dumped). Now when I look at the directory, containing the binary, there is no crashdump. There is no core directory. ...
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2answers
133 views

ext4 reported as clean by fsck after hard reset: Is that normal?

My root-partition is formatted as ext4-filesystem. I notice that, whenever my machine crashes and I have to hard-reset it, when booting up again and the root filesystem is checked this step takes a ...
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2answers
43 views

Ubuntu stops responding to any action

I use ubuntu and found it really frustrating that it stops working really frequently. The circumstances are: Opened Android Studio WITHOUT any emulators (I mean device emulator, I use real devices ...
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0answers
26 views

Terminal Crash after upgrading from centos5.9 to 5.11

I had installed Centos 5.9 in my x86_64 system and I installed update yesterday. Just now after I initiated the system, I found it has been upgraded to centos 5.11. But the bad thing is now I cannot ...
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vote
1answer
222 views

Is /var/crash/.lock safe to delete or should it be kept?

Today when I booted Xubuntu 14.10, I was alerted that a "system program problem [was] detected". This turned out to be gnome-keyring-daemon, since the file ...
3
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0answers
126 views

NUL entry in syslog?

My servers went down on the 30th. It just came back online today. At first I thought it was the router because the router the server is connected to is a bit squirrely but when I checked syslog I have ...
0
votes
1answer
214 views

Manjaro Linux — Can ONLY log in from root account

First time Linux user. Treat me like a complete idiot. Installed Manjaro on VMWare. I'm required to get into this whole Linux thing for college. First problem: Created user account from root. ...
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0answers
301 views

Debian Jessie randomly freezes

Was running debian 8 fine for about a month, suddenly yesterday it freezes constantly. Like really hard lockup to the point the reset button doesnt even do anything. The only thing Ive changed this ...
0
votes
1answer
68 views

Option to configure Linux kernel to run userspace script when core dump occurs?

Is there any option in the kernel compilation or userspace setting to do the above? I'm looking to add a crash reported to my new embedded Linux system.
2
votes
1answer
766 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 ...
0
votes
1answer
316 views

Firefox crash and Hard Disk usage is 100%

Distribution: Arch Linux x86_64 DE: Xfce4 When I using Firefox or dwb web browser, while surfing some web pages, the computer stack for a while then the browser crash. I observed that when this ...
0
votes
1answer
215 views

Debian WiFi crash problem

Sorry for my bad english. On a distribution debian wheezy I configured a router AP. I set up a bridge between a VLAN eth0.102 and wlan wlan0. For configuring WiFi I installed the drivers for the ...
2
votes
0answers
256 views

X server periodically restarting for no reason

The following is for an Debian 7.x (wheezy) amd64 machine - my personal workstation. X has been periodically restarting for no reason. It has been happening once a week or a bit less frequently. ...
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0answers
134 views

HDD disconnects randomly

My internal Seagate Barracuda 7200.11 500GB randomly disappears. Sometimes, before the HDD gives up, I have enough time to move data to another HDD. Data does not seems to be corrupted. I checked it ...
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0answers
25 views

swf players fail after 2 seconds

I am using Gentoo Linux localhost 3.18.11-gentoo #4 SMP Tue Apr 28 05:36:21 EDT 2015 x86_64 Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz GenuineIntel GNU/Linux with a 01:00.0 VGA compatible controller: ...
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1answer
380 views

4TB USB drive consistence totally freezes Xubuntu 15.04

I've always found USB very flaky. I've experienced lots of random freezes (needing hard resets) when for instance I accidentally unplug a drive before unmounting. Drives would only sometimes ...
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2answers
163 views

mysterious program crash: where to look for clues?

On Ubuntu 14.04, I often experience the following: open an application, and within 15 seconds or so the application window simply disappears from screen. If I ps aux | grep nameOfApplication it will ...