Gentoo Archives: gentoo-user

From: Robert David <robert.david.public@×××××.com>
To: gentoo-user@l.g.o
Cc: Konstantinos Agouros <elwood@×××××××.de>
Subject: Re: [gentoo-user] System cold crashing when too much memory is used?
Date: Sun, 21 Oct 2012 22:13:38
Message-Id: 201210212242.29247.robert.david.public@gmail.com
In Reply to: [gentoo-user] System cold crashing when too much memory is used? by Konstantinos Agouros
Hi, 

what rebooted Dom0 or DomU? Have you some special need to run kernel 3.4.9, 
try 3.0.35, I dont have any issue on server with 3.0.x.

Other thing, try to disable swap and run the script. Could be disk problem or 
bus/controller problem when copying pages from swap.


Robert.



On Friday 19 of October 2012 18:45:32 Konstantinos Agouros wrote:
> hi, > > I am running a Xen host with gentoo sources 3.4.9. I've had issues > that the box cold reboots on me and suspected memory use. Today I > ran the following little perl script: > > my $a = "a" x 1000; > $b = $a x 1000; > > while(1) > { > $b .= $b; > } > > 2 Minutes about 2G swapped out (Dom0 has about 6GB of ram and lots of swap) > and boom cold boot. No panic message on the screen before. > > Anybody has an idea what might be causing this? > > During on of these episodes I ran memtest86 on the box without error. > > CPU is an AMD Phenom 6core. > > Regards, > > Konstantin