I am running an ubuntu machine and it crashes randomly. By “crashing” I mean it completely freezes, i.e. no HDD activity, no response to peripherals, and the display output is frozen. At the moment of the crash, there is no log in the system describing any error or anything at all that takes place every … Read more
I’m serving on Images ( JPG|JPEG|PNG ) from an apache server. after sometime, the system cache becomes sooo populated that no other programs are able to run — like recently I noticed that one of the php Cronjob got terminated because of no memory available to process a large number of files. Can I configure … Read more
I have an ESXi 6.5. Windows and CentOS guests are running fine but my 3 Debian guests freeze after a moment (4 days to 1 week). Nothing responding, i need to reboot the guest. The logs files of the guest show no error. I don’t know where to look for and what to do. An … Read more
I have the same problem on two machines where the entire screen will become unresponsive save the mouse, followed after a few seconds by the cursor also freezing. Audio will continue to play, but the machine never responds, not to ctrl-alt-del, not to win-tab, not to anything. I normally assume these kinds of things are … Read more
im facing extremely weird issue regards one server, it random freeze/hang with no output on server, and not responding to short keys, and required cold boot, when boot with cold boot, no errors on boot screen at all. It’s not freezing under heavy load at all, with around 9-20% cpu wheb crash, load average around … Read more
I have set up kdump to debug an issue, and now I am trying to test it, because the issue I am trying to debug does not create a file in /var/crash. However, the test also does not work. I am executing these commands as root: echo “1” > /proc/sys/kernel/sysrq echo c > /proc/sysrq-trigger No … Read more
I am experiencing random freezes on my Debian 10 system, which force me to shut it down using the power button to take any action. These freezes have happened repeatedly over the past weeks. Output of uname -a: Linux debian 4.19.0-18-amd64 #1 SMP Debian 4.19.208-1 (2021-09-29) x86_64 GNU/Linux Hardware: Threadripper 2970 WX, 32GB G Skill … Read more
For a few weeks, the clients connecting to our Exchange infrastructure using Outlook client (2016) experience some kind of slowness. The network team checked the load balancer for mapi and did not find anything relevant. On the Exchange infrastructure, we checked the system performance. The only thing we noticed, is some latency on C drive … Read more
We’ve deployed a new FreeBSD cloud server and configured it identically to our older ones, but it doesn’t do vsftpd TLS file transfers well. Files of more than a few KBs hang at 0% on every client. Small file transfers are fine. Plain FTP has no issues. We’re suspecting something was fundamentally changed on FreeBSD … Read more
I work in an enviroment with a lot of Linux Servers and a few Windows servers. When we perfom some changes in the Windows ones it is very easy to go back to the original state using “Deep Freeze” software. In the Linux servers if it is a VM we have the same result as … Read more
