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1
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0answers
13 views

Server crashes because of SMP

My web server is crashing every few days unless I disable SMP with "nosmp" parameter in Grub config. It is not an hardware failure because the problem persists after moving everything to a new ...
-1
votes
1answer
21 views

need some insight on this crash [closed]

I'm a new poster, but longtime reader of server fault, and I'm hoping one of you can shed some light on my repeatedly maddening crashes. This is a media server running Linux mint. Gig of ram, pretty ...
0
votes
0answers
16 views

Analyse kernel crash file on Ubuntu server 11.10

I am experiencing random crashes on a Ubuntu 11.10 server, and for the time being the system can not be upgraded, even tho this distro is very old. uname -r 3.0.0-12-server I've set it up to get a ...
2
votes
3answers
258 views

memtest86+ crashing on server

We have a few DELL 1950 servers. One of those servers has CentOS6.3 and it's randomly rebooting, so I suspected it was hardware (no log generated). The other four servers do not randomly reboot. We ...
2
votes
2answers
5k 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 ...
2
votes
1answer
108 views

Ubuntu 12.04.2 LTS Server - Randomly hangs with no logging

My server randomly hangs and becomes unresponsive without any logging (dmesg, syslog, kern.log, boot.log, and messages). I cannot predict when it is going to happen. Sometimes the server runs fine for ...
3
votes
2answers
1k 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 ...
0
votes
0answers
68 views

MySQL suddenly 'crashed' but not stopped, mysqld_safe 100% cpu on CentOS 6

Suddenly, today i see the website down. Checking the cpu with "top" in command, i found the mysqld_Safe at the top using all of the cpu. After some google i found some different solutions, i made a ...
0
votes
0answers
50 views

PC with windows 7 block entire network during Update installation

I manage a domain with 80 PC that take the updates from the WSUS on server 2k8 R2, I have set the update to be installed once a week at 14:00 since in this time all the PC are on. Once a 2-3 month ...
0
votes
1answer
86 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 ...
2
votes
3answers
597 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
45 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 ...
2
votes
1answer
6k views

PAM unable to dlopen(/lib64/security/pam_fprintd.so) causing CentOS/Redhat server to crash

CentOS 6, Parallels PLESK 10.4, Apache One of my servers went down over the weekend much to my dismay. On the day and time it occurred, my log errors/messages end with this - /var/log/secure: Jul ...
0
votes
1answer
49 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
152 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
2answers
194 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 ...
0
votes
0answers
42 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
65 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
239 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
242 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
163 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 ...
4
votes
2answers
3k views

How to stop a random ramp in FCGI Processes Killing the server

So got the below earlier to day... Around that time the logs show a ramp in processes(600) and associated memory (1.2g), cpu usage load average (80) untill the server gave out. Server had to be hard ...
1
vote
1answer
100 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 ...
5
votes
1answer
529 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 ...
0
votes
0answers
38 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, ...
1
vote
2answers
366 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 ...
7
votes
3answers
26k views

What is wrong in my php-fpm configuration?

I have a 64-bit server but only 256MB of RAM. So, I moved to nginx server with fast-cgi to connect to PHP. I have PHP 5.3.6 running. The issue is that after every two or three days when I try to ...
0
votes
5answers
2k views

Server hang on CentOS 5.5

I'm running CentOS 5.5 on a server. It runs several VMware virtual machines and an NFS server. Occasionally, like today, it hangs. There's nothing in /var/log/messages that indicates any problem. ...
1
vote
1answer
750 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
43 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
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0answers
543 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
240 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
109 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
39 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
291 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
520 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
241 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
957 views

Ubuntu 11.04 server crash report

I am using Ubuntu 11.04 server addition for my application. During some testing my server has just crashed. After that I am restart the server. My problem is how can i find the reason of crashing? I ...
4
votes
3answers
4k views

APC XS 1300 Overloading every night at 2:45AM

Here is the situation that I have run into for the past 2 nights: I leave work and all is well, severs happily humming away everyone has access, life is good. I get in the morning, and the only ...
1
vote
1answer
102 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 ...
0
votes
2answers
761 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
89 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 ...
3
votes
0answers
988 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 ...
1
vote
1answer
402 views

Analyzing crashdump, wrong symbols

I am having trouble analyzing a crashdump with windbg. I run: .sympath SRV*c:\symbols*http://msdl.microsoft.com/download/symbols .reload /f /i To get the symbols. All symbols seem to have ...
4
votes
1answer
858 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 ...
-3
votes
1answer
48 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 ...
1
vote
0answers
186 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
119 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 ...