Ubuntu 16.04: “Out of memory” errors after upgrade to 4.4.0-59

Post by lima » Sun, Jan 29, 2017, 1:06 PM UTC

StreamBright wrote: post #80

dima55 wrote: post #44

Earlier quoted context omitted.

What are the many missing packages on Debian? From my experience Centos looks like a bad joke.

Not sure what you mean, if RedHat/CentOS is good for Amazon to run their 2M linux nodes, it is probably good enough for me to host my services. The stability and production readiness of the platform beats all the other Linux distributions, especially Ubuntu and I would argue Debian too (hello purify complains bug).

Post by lima » Sun, Jan 29, 2017, 1:09 PM UTC

mrmondo wrote: post #92

aikorevs wrote: post #3

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Can you please share your experience a bit more ? How much SELinux is really required ? What about grsecurity. My use case is custom build Django/Postgres app.

SELinux is an absolute must in todays world, simply put it prevents applications and namespace from doing thing outide of their area of interet, for example a web server should never be allowed to execute files from /tmp so it prevents that, another great example is when you have any form of multi-tennancy - for example you might have several docker or LXC containerised apps running on a host SELinux will / can ensur…

Post by yrro » Sun, Jan 29, 2017, 1:15 PM UTC

JdeBP wrote: post #112

mrmondo wrote: post #104

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Honestly, the amount of regressions, packaging problems, hacky fixes, non-stardard configuration and poorly set defaults in Ubuntu is disgusting, look at how bad NetworkManager was / is on it, it's not that bad on Fedora (not that I like it that much) and the whole debarcle with them doing Unitiy on top of Gnome rather than contributing to the community projects, or recently when they released an update that broke al…

andrewshadura is right. Here's just one of your items that is bunkum, for an example. > their own custom [...] init system of Upstart when they could have contributed to System upstart was developed several years, just under half a decade, before systemd even existed; it was used by Fedora for three years.

Post by lima » Sun, Jan 29, 2017, 1:32 PM UTC

JdeBP wrote: post #112

mrmondo wrote: post #104

Earlier quoted context omitted.

Honestly, the amount of regressions, packaging problems, hacky fixes, non-stardard configuration and poorly set defaults in Ubuntu is disgusting, look at how bad NetworkManager was / is on it, it's not that bad on Fedora (not that I like it that much) and the whole debarcle with them doing Unitiy on top of Gnome rather than contributing to the community projects, or recently when they released an update that broke al…

andrewshadura is right. Here's just one of your items that is bunkum, for an example. > their own custom [...] init system of Upstart when they could have contributed to System upstart was developed several years, just under half a decade, before systemd even existed; it was used by Fedora for three years.

Post by lima » Sun, Jan 29, 2017, 1:43 PM UTC

feld wrote: post #134

lima wrote: post #129

Earlier quoted context omitted.

It's not the case on Linux either. Linux intelligently swaps out ununsed pages even if there's enough physical RAM (that is more useful as page cache).

I have FreeBSD systems that use gigs of swap with gigs of memory free. If you have a Linux system with that much swap usage it's usually about to crash (as it struggling under memory pressure) People should stop monitoring swap usage and start monitoring the amount of page in / page out IO.