From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 24 Oct 2002 00:51:18 +0200 From: Arador Subject: Re: 2.5.44-mm3: X doesn't work Message-Id: <20021024005118.0fb9d427.diegocg@teleline.es> In-Reply-To: <447940000.1035403802@flay> References: <20021023205808.0449836a.diegocg@teleline.es> <447940000.1035403802@flay> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: "Martin J. Bligh" , linux-mm@kvack.org List-ID: On Wed, 23 Oct 2002 13:10:02 -0700 "Martin J. Bligh" wrote: > CONFIG_SHAREPTE=y > CONFIG_PREEMPT=y > > Want to try it again with the following? > 1. CONFIG_SHPTE set, CONFIG_PREEMPT not set > 2. CONFIG_SHPTE unset, CONFIG_PREEMPT set only tested the 2 case. It works. I've not tested 1, perhaps i won't test, recompile a kernel takes a loong time and i assume that the bug cames from CONFIG_SHAREPTE. A strange thing: While testing the 2 case i've found the following situation I started Xwindows, while i started recompiling a kernel (233 mhz 32 Mb ram). Then, disk became mad as it'd be swapping. Looking with top, i found kswapd working ~20% of the cpu. The one only strange thing i did appart from starting Xwindows was set to 100 /proc/sys/vm/swapiness, then 0, then the default 60. (I've tried booting and changing it again and i doesn't happen anything). While i was lookink at kswapd i set swapiness again to 100 and went up to ~40% of the cpu. Then i tried to kill all processes. When idle, kswapd was eating around 5% of the cpu. (swapiness at 60). Every ls, cat...everything made kswapd to eat a lot of cpu (and swapping things it seems, there was a lot of disk activity) I wish to have vmstat info but i don't have a proper procps. I'll collect more data and try to reproduce again if needed. Diego Calleja -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/