From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Schwab Subject: Re: [3.13 regression] kswapd0 and ksoftirqd/0 CPU hogs Date: Wed, 01 Apr 2015 18:11:36 +0200 Message-ID: <87sicjltfr.fsf@igel.home> References: <21393.43065.207399.530921@gargle.gargle.HOWL> <21426.40682.197715.245775@gargle.gargle.HOWL> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-out.m-online.net ([212.18.0.10]:37931 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751210AbbDAQLk (ORCPT ); Wed, 1 Apr 2015 12:11:40 -0400 In-Reply-To: (Michael Schmitz's message of "Tue, 31 Mar 2015 14:16:27 +1300") Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: Michael Schmitz Cc: Mikael Pettersson , Linux/m68k Michael Schmitz writes: > has anyone found a solution to this one? > > 3.18-rc5 has kswapd0 hogging the CPU - haven't seen ksoftirqd0 yet. > Unpacking a large tarball tends to trigger this for me. The only workaround I have is to drop caches regularily (/proc/sys/vm/drop_caches) when MemFree is getting low. All my OBS build workers are stable running 3.11.6 with this workaround. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."