![]() On a Mac with Apple silicon, you may first need to use Startup Security Utility to set the security policy to Reduced Security and select the “Allow user management of kernel extensions from identified developers” checkbox. The alert may inform you that it will damage your computer and has been blocked.The alert may ask you to contact the developer for support because the extension needs to be updated or will be incompatible with a future version of macOS.The alert may ask you to open Security & Privacy preferences to allow the extension.Still unsure the root cause as I haven't seen any other reports of this issue, my assumption is when I used rsync from my old 14.10 system a faulty driver was copied over or a faulty kernel file - why 4.0.0 fixes this is beyond me.but at least no more kworker writing every 5 seconds to kern.log and my harddrives.You may see an alert on your Mac that says that a program loaded or tried to load a system extension signed by the developer of that extension. 10 in most cases unless something is happening on the hosted servers.Īnyway, I used the following link to help : Īnd just to keep in compliance with the rules, I did the following as root and then rebooted the machine: wget ĭpkg -i linux-headers-4.0.0*.deb linux-image-4.0.0*.debĪs far as how I came to this - after reading through countless forums and newsgroups/mailing lists and getting nowhere (tried messing with BIOs, boot options, commit=60, disabling services, changing physical server location, etc.) I decided to either downgrade or update the kernel.being that 15.04 is new I updated. Upon updating to 4.0.0-040000-generic #201504121935 my CPU wait has been normal and system load under. This ended up being what I believe to be a kernel bug. My apologies if this is a dumb question or has been asked before - I've been working on this for a few hours now and I'm running into dead-ends with Google past just starting over from scratch.which preferably I would like to avoid.Īpologies on the links.new user limitations. I'll omit CPU info, but it is an Intel Xeon CPU E5-2690, 2 cores, 2gb RAM, and I believe about 500gb harddrive. I installed perf and did a quick 30 second report - but I don't understand this output too much: Same url as above serverproblem/interrupts.png r /sys/firmware/acpi/interrupts/ and disabling any values above 0.although all my values are 0 unfortunately. I thought it may be an interrupt issue, so here's the results of cat /proc/interrupts:Īlong with this, another question suggested running grep. ![]() I'm totally stumped on why load average is so high - I had my users test on both MC and the CS:GO servers and they aren't experiencing any lag - I also tested the web servers and they're delivering pages extremely fast (in comparison to the old server.) kworker/u30:0 and kworker/u30:1 which leads me to my kernel assumption. To add to this - if I hit F and then hit S on 'Process Status' and resort the top lists I have 2 commands listed under 'D'. (currently one game server is in use hence the memory usage - I have to reduce how much RAM is allocated to Minecraft from the default values) Usage of /: 22.6% of 196.64GB Users logged in: 1 Previous server was on Ubuntu 14, I exported a list of packages I installed from there and apt-get installed them on the new server I also rsync'd most of the files from the old server over as well (I'm thinking I copied over something bad that's messing with my kernel.)Īnyway, here is the results of my uname -a: Linux ophq 3.19.0-18-generic #18-Ubuntu SMP Tue May 19 18:31: x86_64 x86_64 x86_64 GNU/LinuxĪnd the results of landscape-sysinfo/logging in screen: Welcome to Ubuntu 15.04 (GNU/Linux 3.19.0-18-generic x86_64) I recently transferred basically game servers/MySQL/web sites over from one VPS to another - while there hasn't been any issues on the new one I keep seeing my system load spike and take up both processors previous server system load averaged at about. Not really a system administrator here but really trying to just set up a server (a rented VDS, really) for some friends.
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