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2
votes
3answers
129 views

How can I fix Purple Screen of Death for ESX 5.5?

I have a ESX 5.5 installed on my HP Proliant DL 180 G6 with a configuration of 8X Intel(R) Xeon(R) CPU E5540 @ 2.53GHz, 24 Gb RAM. Recently the server has crashed four times, showing the Purple ...
0
votes
1answer
24 views

httpd trying to access root-owned session files

While looking into what's been causing a server to lock up/crash, I found many selinux messages in /var/log/messages. For example: setroubleshoot: SELinux is preventing /usr/sbin/httpd from getattr ...
0
votes
1answer
48 views

Server crash with ascii NUL characters in syslog ( ^@^@^@… )

I have some dedicated server hosted by a OVH (French service provider). OS : Ubuntu 12.04 x64 A few months ago, one of my server crashed. The only weird thing was some "ASCII NUL" caracters in the ...
0
votes
1answer
38 views

Analyze SMART self-test for broken disks [closed]

I recently came home from vacation only to wake up the following morgon with two disks in my RAID5 array marked as faulty. I was able to start the RAID by forcing it to use the faulty disks and run, ...
2
votes
1answer
67 views

Windbg / minidump - how do I get a process list with memory use

I've used Windbg only for the most simple !analyze -v in the past. Now I've got a bit of a problem... Some process is running wild and consumes all available memory (I can see it spike in monitoring ...
0
votes
0answers
32 views

Ubuntu Server, services crashing yet server stays up with call trace

I have a strange issue with our Ubuntu 12.04LTS server. it has happened twice now and with a gap of around a week. The server services (apache, ssh, smnp, webmin, just the ones i tested) all stop ...
0
votes
1answer
60 views

Put NIC under heavy load [closed]

I think I've got a faulty NIC so I want to put it under heavy but controlled load to see if and when it dies. How can I generate such a load? The NIC is in a Hyper-V host with Windows and Linux ...
1
vote
2answers
164 views

5 ESXi same hardware . 2 of them crash

I even could not find where to start research ! There is no pattern between crashes . 2014-08-27T13:48:01.033Z cpu0:32957)MCE: 1118: cpu0: MCA error detected via CMCI (Gbl status=0x0): Restart IP: ...
0
votes
1answer
180 views

Ubuntu 12.04 Randomly Reboots

Im sorry if this starts really vague, but i have no idea where to turn. We have 4 dell R610 servers with 2 x 2.8GHZ Intel 5650 and 16GB Ram. These servers just randomly reboot themselves here is ...
1
vote
1answer
90 views

CentOS 6.5 Server Lockup

Today one of our CentOS 6.5 KVM nodes from OVH crashed after 46 days of uptime and we were unable to find the reason why, we had this issue before with the OVH kernel on another server but this one is ...
0
votes
0answers
33 views

How do I configure kdump with extra_modules on ubuntu?

I need to configure extra modules to load with kdump (specifically, vga16fb.ko). On RHEL systems it's in /etc/kdump.conf, but ubuntu doesn't have this file. I've looked in /etc/default/kdump-config, ...
2
votes
1answer
949 views

Why is Linux kdump not writing to /var/crash?

It's happened again! I have 4 servers which are crashing periodically, and there is no information printed to the system logs or the serial console. In addition, the Linux kdump service isn't writing ...
5
votes
1answer
442 views

ESXi v5.5 is having random crashes

HW: Type: HP Proliant ML350 G5 RAM 22GB CPU 1 x Intel Xenon E5405 2.00GHz OP: ESXi 5.5 just updated from 5.1 to try and fix the crashes occurring on ESXi 5.1 on same hardware. I'm trying to find ...
1
vote
2answers
206 views

Diagnose a server crash, possibly CPU temp

I have a desktop running as a ubuntu server at another office. Lately its been shutting itself down once in a while, and I'm a bit unsure how to diagnose this. The syslog looks like this: May 20 ...
-1
votes
1answer
2k views

Server freeze with “rcu_sched detected stalls on CPUs/tasks”

My web server is crashing several times a week. I see errors in syslog but I can't find a solution. I tried changing kernel to older or newer versions but no difference. I moved everything to a new ...
1
vote
1answer
560 views

“show_signal_msg: N callbacks suppressed” then pegged at 100% and machine unresponsive

This happened on an Ubuntu 14.04 64-bit DigitalOcean Droplet: Apr 22 02:17:02 localhost CRON[32514]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Apr 22 03:16:59 localhost ...
0
votes
0answers
41 views

Server usage topped 100% and crashed - how to diagnose and prevent

I'm running a small webserver on Ubuntu 12.04. Last night, the server topped off at 100% cpu usage and crashed. This is unusual as I'm normally around 1-5%. I suspect a DDoS attack from someone ...
0
votes
0answers
511 views

Server crash : “unable to handle kernel paging request”

My fresh new Ubuntu webserver randomly crashes with the following error in the syslog. It doesn't respond anymore and I have to do a hard reboot. It happens almost one time a day. Server kernel is : ...
0
votes
0answers
209 views

Xenserver 6.2 - read-only filesystem after crash

I'm totally new on XenServer. I've installed 6.2 community edition few days ago. Everything was working fine (4 VMs - 3 Win XP and 1 Ubuntu 12.04). When I was trying to install Zentyal as VM my system ...
0
votes
1answer
93 views

Memcached Service Crashed Every Morning

I have Memcached 1.4.17 Install on CentOS server to serve a PHP website. The problem is every morning the Memcached Service will be crashed. Any suggestions?
0
votes
0answers
35 views

Ubuntu 13.04 instance crash: how to debug?

We're running a server on Ubuntu 13.04 which crashes quite randomly (the instance itself crashes, not the apache2 component). I've enabled # Run bootlogd at startup -> BOOTLOGD_ENABLE=Yes , but ...
0
votes
2answers
241 views

I can't log into my VPS. Email server up, SSH down, HTTP down

I can't log into my VPS. SSH gives the following error. All the web servers are down. They connect, but do not serve content. However, the email server is still working. The server responds to ping as ...
2
votes
1answer
387 views

MySQL Periodically Crashing

MySQL Seems to be crashing quite often, I'd say every hour or so. The only thing running on this server that is using MySQL is a Drupal installation that I'm working on, there's only one person ...
3
votes
1answer
202 views

Nonexistent service gets a start control?

I've got a pair of servers that both log an event "The cpuz135 service was successfully sent a start control." but cpu-z isn't installed on either machine. I can't find the service listed in Windows' ...
1
vote
1answer
90 views

Understanding IIS Server Crash

We have an issue where the whole iis server is crashing. From my understanding when an application crashes (due to infinite loop or else) only that application pool is taken down. In our sceanrio ...
1
vote
0answers
80 views

Linux server crashing (drm:drm_fb_helper_panic)

We have a server (IBM x3850 8864) running Ubuntu 10.04 LTS. It's acting as a KVM host with several virtual machines on it (also running Ubuntu 10.04). The (physical) server sometimes crashes with ...
1
vote
2answers
4k views

Server crashed, some MySQL databases are broken. Trying to recover with InnoDB recovery, but ibdata1 seems corrupt

I've a problem. Some days ago my root server crashes after a power outage. I realised that the MySQL server won't start. In the logs I find out that an error occured with InnoDB's ibdata1. I've ...
1
vote
1answer
117 views

How to analyze a windows system hang (not crash)

I've got a customer with intermittent System hangs. The System in case is a Windows Terminal Server 2008R2 SP1. Sometimes one session in the Server will freeze. Everyone else can work as usual, but ...
0
votes
2answers
165 views

Tomcat 5.5: “Exception processing JAR at resource path” leads to java.lang.OutOfMemoryError

We have an old server running Tomcat 5.5. Yesterday we deployed a war file, and then it started to crash. Looking at catalina.date.log I found some java.util.zip.ZipException and then ...
-3
votes
1answer
44 views

Fallback Hosting [closed]

I have my site hosted on my own servers, but I am worried about potential crashes. What I would like to do is set up a fallback website hosted through, for example: GoDaddy. So in the event of a ...
0
votes
2answers
611 views

Windows 2008 started crashing regularly every week

For the last couple of weeks my server have been crashing like once a week and usually during the weekends when nobody is using the Server in the Office and before that, my server was very, very ...
1
vote
0answers
178 views

Apache server continuous downtimes

I have been running a website from a CentOS 5 server for about 1 year. Everything was okay until I noticed weird downtime problems on my server. I just took a look at the System graphs and I saw that ...
0
votes
0answers
20 views

Apache can crash due to unable to wtite coredumps?

apache coredumps are increasing by leaps and bounds, is this possible that while trying to write the core sumps and not able to do so because of no space left can crash apache server itself? I am ...
2
votes
0answers
111 views

top reports extremely high cpu-used time for all processes

The server was up for less than 10 mins, but top shows extremely high cpu-used time for all process[1] (more than million hours used), this is a 24 core machine. System eventually crashed in 10-15 ...
0
votes
1answer
237 views

WIN32 services dependencies

I know this has been handled before but I'm not getting a clear answer from this question. I have a service that depends on the print spooler.Every now and then, the spooler crashes...(luckily not ...
4
votes
1answer
784 views

Hyper-v on 2012R2 startup gen1 vm causes the host to freeze up

I've searched a lot to resolve the following issue, but nothing helped me. My problem is, that starting up a first-gen vm locks up the whole host. Only a hard reset helps. Second-gen vm starts and ...
0
votes
1answer
87 views

Debian Server Unexpected Crash

I have had my file/networking/virtual machine server crash twice this week so I added a graphics card back so I can see whats going on as ssh stops. It then crashed again and I got another error. I ...
0
votes
2answers
75 views

2.6 Kernel Linux with EXT4 running HTTPD; power cord gets pulled out, what happens?

Can someone explain to me the ramifications of this? CentOS 6.3 with httpd 2.15, with one mod perl site and one php site. Someone pulled the power cord right out. I heard from one person that the ...
2
votes
1answer
852 views

Server hangs at “Shutting down loopback interface” on reboot

I'm having some trouble understanding what's going on with connecting one of our Xen hypervisors to our iSCSI SAN. Ever since we mounted our iSCSI targets, we've experienced hanging on reboots. This ...
8
votes
1answer
235 views

Dell PowerEdge server crashed, how to repair? What happened? Information inside

I am currently in high school and run our school's website. This summer, our SysAdmin was diagnosed with cancer, and he went off for treatment, so I have been thrown into an interesting situation. ...
0
votes
1answer
104 views

Why does the mysql backup grow if a table is crashed?

I use this backup script on my debian squeeze server to create a backup of all mysqltables: #!/bin/sh BACKUP_DIR=/var/backups/mysql/ DATE=$(date +%Y-%m-%d) for i in /var/lib/mysql/*/; do ...
3
votes
2answers
2k views

Is a hardware watchdog already active at my CentOS server?

I rent a dedicated server (with Intel Haswell CPU and custom hardware) at a lowcost hosting service and use it with CentOS 6.4 / 64 bit Linux (with stock kernel: 2.6.32-358.14.1.el6.x86_64). Every ...
0
votes
2answers
700 views

How can i find out what crashed my Windows Server 2008 R2 box?

My file server just went belly up and I can't seem to figure out why. Perhaps I'm naive but when these things happen I can typically look through my System, Application or Security Event Viewer log ...
-2
votes
3answers
91 views

Stop server crash [duplicate]

I run my python scripts and Scrapy framework for web scraping project on my Ubuntu 12.04 precise server. These scripts run whole day. This project is under developing/testing stage. So i dont know ...
0
votes
1answer
58 views

Linux server hangs and memory hits zero [closed]

I run a Debian Linux server (with Apache 2 and MySQL) on a virtual private server with 256 MB memory. (I also use swapspace package.) The system hanged. The memory graph (provided by the hoster) ...
0
votes
1answer
148 views

Anybody experiencing full system lockups with LUKS?

I've recently setup a couple of new servers. This time I'm encrypting most of my partitions using dmcrypt+LUKS. However these new servers crash very often, every few days. Full lockups, kernel does ...
1
vote
0answers
289 views

Server 2012 DFS New Member Issue

I am trying to add a new member to our DFS topology. We have 3 DCs (VMs - VMware) running Windows server 2012, two servers are located in or Primary site and the third at our DR site. Currently the ...
2
votes
1answer
826 views

Kernel oops on Linux running in VirtualBox breaks some IO-related functionality on the server

We are having problems with CentOS release 6.3 running in VirtualBox on Windows 7 machines. The symptoms are the following: Everything works as normal for several hours, even days. Then something ...
3
votes
0answers
920 views

Analyzing BSOD dump file from Windows 2008 R2 SP1

I have a problem with a virtual Windows Server 2008 R2 SP1 server running withing VMWare. The server is running Citrix and also has Symantec Endpoint protection installed. It randomly crashes and goes ...
-2
votes
1answer
501 views

Server Crashes randomly [closed]

I have a problem, VM server 2008 R2 SP1 , running citrix is randomly crhasing, in event log I found following: The computer has rebooted from a bugcheck. The bugcheck was: 0x0000003b ...