From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerhard Wiesinger Subject: Re: Still OOM problems with 4.9er kernels Date: Fri, 9 Dec 2016 08:06:25 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: Linus Torvalds List-Id: linux-mm.kvack.org Hello, same with latest kernel rc, dnf still killed with OOM (but sometimes better). ./update.sh: line 40: 1591 Killed ${EXE} update ${PARAMS} (does dnf clean all;dnf update) Linux database.intern 4.9.0-0.rc8.git2.1.fc26.x86_64 #1 SMP Wed Dec 7 17:53:29 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Updated bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1314697 Any chance to get it fixed in 4.9.0 release? Ciao, Gerhard On 30.11.2016 08:20, Gerhard Wiesinger wrote: > Hello, > > See also: > Bug 1314697 - Kernel 4.4.3-300.fc23.x86_64 is not stable inside a KVM VM > https://bugzilla.redhat.com/show_bug.cgi?id=1314697 > > Ciao, > Gerhard > > > On 30.11.2016 08:10, Gerhard Wiesinger wrote: >> Hello, >> >> I'm having out of memory situations with my "low memory" VMs in KVM >> under Fedora (Kernel 4.7, 4.8 and also before). They started to get >> more and more sensitive to OOM. I recently found the following info: >> >> https://marius.bloggt-in-braunschweig.de/2016/11/17/linuxkernel-4-74-8-und-der-oom-killer/ >> >> https://www.spinics.net/lists/linux-mm/msg113661.html >> >> Therefore I tried the latest Fedora kernels: >> 4.9.0-0.rc6.git2.1.fc26.x86_64 >> >> But OOM situation is still very easy to reproduce: >> >> 1.) VM with 128-384MB under Fedora 25 >> >> 2.) Having some processes run without any load (e.g. Apache) >> >> 3.) run an update with: dnf clean all; dnf update >> >> 4.) dnf python process get's killed >> >> >> Please make the VM system working again in Kernel 4.9 and to use swap >> again correctly. >> >> Thnx. >> >> Ciao, >> >> Gerhard >> >> >