Questions tagged [hangs]

Hangs is a speaking term for describing the event that a server or program gets stuck in its own code. This will cause the server to not respond, but neither will it shut down. You will only see a frozen screen and can't do anything, besides forcing a restart by pressing the power button or removing the power.

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Server shutdown hangs (when oss/lynxtwo driver does not load properly)

I have re-installed Ubuntu 22.04.2 in my server used primarily for audio via OSS driver (v4) with LynxTwo card. It worked well for few days but then the reboot/shutdown started to hang (had to power ...
Ditusade's user avatar
1 vote
1 answer
306 views

How do I debug occasional hang of SSH connection?

Sometimes (but not every time - roughly 3 attempts of every 10 work) when I try to connect to a VM hosted on Azure, my SSH connection hangs before giving me a shell; the last message in the verbose ...
Max Vorobev's user avatar
1 vote
2 answers
2k views

KVM quests "stuttering"/"freezing" intermittently on Debian 10

I'm using KVM on Debian 10 as host and for now two guests that are Debian 10 as well. The guests are "stuttering" frequently, what I mean by that is that like at least several times an hour ...
LetMeSOThat4U's user avatar
1 vote
1 answer
126 views

Random HDD hangs on Debian Stretch

I have server with two HDD in RAID1, two SSD in RAID0 and one NVME. But sometimes HDD randomly hangs for couple minutes. Last time HDD not responded for 20 minutes. I have no clue what can be a cause ...
brardong's user avatar
0 votes
1 answer
273 views

Supermicro H8DGU-F hangs with CentOS7

I try to fix our old failing blade replacing nodes with old Supermicro 1U servers that are cheap now. I do it for my own money so price matters (company doesn't want to buy new equipement). Servers ...
Andrew's user avatar
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3 answers
53 views

How to find cause of server hanging while having only 3 seconds of access

Remote debian buster server, so can't go to console. Yesterday it worked properly, today it has stopped responding. I can reboot it remotely, so after reboot I can reconnect, but I can only run short ...
SledgehammerPL's user avatar
0 votes
1 answer
378 views

stresslinux hanging on boot at "NMI watchdog enabled, takes one hw-pmu counter. #3"

I have a Gigabyte GA-z170N-WIFI (32GB memory in two 16GB modules) board that refuses to boot, When booting to real media (I.e. Ubuntu 18 live install CD or it's installed OS on SDD) it freezes at ...
BurningKrome's user avatar
1 vote
0 answers
898 views

Windows 10 offline <-> network drive nightmare

I'm banging my head against the walls due to a very weird problem we have at my company. First of all, my problem occurs only on W10 workstations (no matter the hardware, the build version or with ...
Nemesis's user avatar
  • 31
2 votes
1 answer
8k views

problems with ssh connection: sometimes succesfull/sometimes timeout/sometimes hangs

I have a problem with ssh connection. I am using my Ubuntu 16.04 client to connect to the Centos7 server. I use ssh-key pairs to establish connections. But then a lot of weird things happen: Sometimes ...
K.I.'s user avatar
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3 votes
0 answers
1k views

Kubectl logs hangs for hours and then returns to works normally

Kubectl logs hanginging for hours and shows something like: Unable to connect to the server: read tcp 192.168.69.227:57692->35.188.160.72:443: read: connection reset by peer We have no idea how ...
Renato Prado's user avatar
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432 views

how to find what hangs rebooting

During reboot my machine hangs on [ OK ] Removed slice system-postfix.slice I don't know if problem is with postfix (guess not, because of [ OK ]), but how to find what is next service (which hangs ...
SledgehammerPL's user avatar
3 votes
2 answers
4k views

nginx + PHP-FPM (7.0) hangs on some requests

I'm experiencing a weird issue with nginx + PHP-FPM hosted web app build with Symfony2. Basically, from time to time, there's a request that is not handled, instead the browser shows that it's waiting ...
user401676's user avatar
2 votes
1 answer
550 views

How to solve intermittent server hangs? Write to (and read from) a disk stops completely

We have a LAMP server for about 6 months. CentOS 7.0 It ran non stop without a restart for the first 3 months then it hang. Then it run for the next 2 months (also non stop without a restart) then ...
alxsr's user avatar
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2 votes
1 answer
1k 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 ...
msbrogli's user avatar
  • 283
1 vote
1 answer
741 views

What can cause an entire Red Hat server to "hang"?

We've got two Red Hat servers which "hangs" at regular intervals. The systems become unresponsive for 20 - 30 seconds, and then return back to "normal". The systems are not virtualized, and runs on ...
sbrattla's user avatar
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2 votes
5 answers
13k views

mstsc freezes after entering credentials

At some point in the Windows session (usually days) I can no longer make RDP connections. When running mstsc and entering credentials, all buttons are getting disabled and the UI freezes. Existing ...
ya23's user avatar
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2 votes
0 answers
2k views

libvirt / kvm guests take very long time to start after host reboot

Host system is CentOS 6.5 x86_64. I have setup an Ubuntu guest by following this wiki. The guest works, but: if I reboot the host, it takes a very long time (about 30 minutes on the last reboot) ...
Matt's user avatar
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1 vote
1 answer
9k views

Windows Server 2008 R2 Freezes at Login

We have a Windows Server 2008 R2 install on our company desktop server which has been working fine for the last 3 years (with regular updates) Recently, we restarted our server (due to slow file ...
Dzstoyanov's user avatar
6 votes
1 answer
44k views

Linux server hangs, where to look for possible reason? [closed]

Linux server hangs for several times without knowing the exact reason. Which file or log should I look at? The server responds to ping, but I can not ssh to it. And when I plug a monitor into it, it ...
snow8261's user avatar
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2 votes
1 answer
7k views

vmware virtual machine keeps freezing

Strangely I have a virtual machine that keeps constantly freezing for some seconds or minutes. On the OS side, the CPU and memory used are quite low. On VMWare side, it's the same, the machine never ...
db_ch's user avatar
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1 vote
0 answers
236 views

ACL PS Script - hangs on 08 R2 PS v3; works fine on W8 PS v4

This script was designed to make application of permissions to a new server much easier. It is not doing that currently :( For some reason it works just fine on my Win 8 machine, where I made it. ...
johnnygear's user avatar
3 votes
2 answers
20k views

MySQL SELECT query hangs

On my server I have 6 MySQL databases. They all power Wordpress websites. For some reason, 2 of these databases are not accessible. To my knowledge they use INNODB, but I can't confirm it as even ...
Thomas Lomas's user avatar
0 votes
2 answers
3k views

linux server hangs after "running local boot scripts"

after a sudden electricity break down one of the company servers (ubuntu) hangs at boot. I have an OK message for "running local boot scripts (/etc/rc.local)" but it freeze there and a black screep ...
apo's user avatar
  • 1
0 votes
1 answer
2k views

Tomcat is closing randomly

We are using Tomcat 7.0.21 for production. Server is hanging randomly for last week. It creates files like hs_err_pid4528.log under bin folder. There are two parts in logs. JRE version: 7.0_21-b11 ...
besc's user avatar
  • 101
-1 votes
2 answers
2k views

CentOS stopped loading after I added something to /etc/rc.d/rc.local

I am very new in Linux (first day). I needed to add my program to the OS startup. I could not find a solution, so I tried to do something that could solve my issue. I added my line of text /opt/mono/...
Andrew's user avatar
  • 165
0 votes
1 answer
650 views

SmartOS reboots spontaneously

I run a SmartOS system on a Hetzner EX4S (Intel Core i7-2600, 32G RAM, 2x3Tb SATA HDD). There are six virtual machines on the host: [root@10-bf-48-7f-e7-03 ~]# vmadm list UUID ...
Alex's user avatar
  • 7,969
4 votes
2 answers
5k views

apache hangs frequently with semop

My Apache hangs frequently with multiple threads. Each process get stucked for hours. Backtrace looks like this: (gdb) backtrace #0 0x00002af60c22b2d7 in semop () from /lib64/libc.so.6 #1 ...
PiTheNumber's user avatar
1 vote
3 answers
3k views

Debian Linux server hangs after a week or so

I have 2 Debian Linux 6.0.4 servers that have a strange behaviour: after 5-7-10 days they hang. By this I mean the servers need to be restarted and before that ping won't answer. I've been struggling ...
Alex Flo's user avatar
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2 votes
3 answers
1k views

MySQL on ubuntu very high IOWAIT

Can anyone advice what is going on with my setup. I have mysql server on ubuntu which periodically produce very high iowait. for long time up to 10-20 minutes. During this time system and database ...
user330026's user avatar
0 votes
2 answers
1k views

After applying patches and rebooting, RHEL 5.3 hangs on udev

I suspect that one of the packages in the last system updated is causing problems with the system rebooting. When I reboot, the server hangs on udev. Here are a list of the updates that preceeded ...
a coder's user avatar
  • 799
-4 votes
3 answers
258 views

My MS AD server hangs without any information [closed]

At Random times my Microsoft AD Server gets totally frozen (but i can see that the cursor moves freely and num lock status is also fine but on the screen i dont see anything other than the background)....
Pavan's user avatar
  • 1
2 votes
2 answers
4k views

ssh initial prompt hangs for 10 minutes but console login and initial prompt is very responsive - why?

I have been running an ESXi 4.0 server for months with a couple of WinServer2003 and several Ubuntu Server 10.4 VMs. The performance has been impressive on 6GB i7 Asus P6T hardware. Suddenly, a week ...
rfreytag's user avatar
  • 1,235
0 votes
0 answers
438 views

JVM hangs with 100 IO wait on Ubuntu Maverick (AWS EC2 xlarge instance)

Have an xlarge instance in AWS running 9 Tomcats with heaps from 256M to 4G. With Ubuntu 10.04 the box sporadically hangs for a few hours with huge run queue (30-40), and nothing on CPU, then recovers....
user avatar
0 votes
3 answers
2k views

Dell PowerEdge 2950 III running XenServer with 2 VMs gets sluggish after a week and needs rebooted?

It has weird hangs and then random CPU spikes that do a ton at once. While remoted into the VMs I get an update all at once then it hangs for another 20 seconds. When it lets it go through I get a CPU ...
Joshua F. Rountree's user avatar
2 votes
1 answer
776 views

MySQL queries hang site

I recently moved from a Dreamhost shared hosting account to a Linode 512mb VPS. The switch has been rather smooth for normal day to day operation of my site but some problems with MySQL have cropped ...
alexbaumhoer's user avatar
4 votes
2 answers
1k views

Apache forks a very high number of threads, and hangs

We have moved one of our sites to a new server, which once in a while completely hangs. At first this happened very rarely, maybe once per month, but now it's starting to happen every day. By hangs, I ...
K. Norbert's user avatar
0 votes
4 answers
1k views

apache2 + mod_fastcgi + suexec + php5.2 = unstable on high load

I am hosting several (~30) different sites on one server with apache2+fastcgi+suexec+php5. Sites have different loads and different execution times of their scripts (some of them process request for 5-...
user avatar
1 vote
3 answers
137 views

Strange network behaviour on XP

I have a workstation which suddenly hangs the applications working over shared resources. But not for other TCP connections. For instance, I open windows explorer and browse on Z:\documents. Also I ...
FerranB's user avatar
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