[Novalug] Fwd: Re: Why am I out of memory?

James M Keller jmkeller@houseofzen.org
Fri Aug 12 15:37:46 EDT 2011


If you don't have ECC ram and it enabled in bios, it's likely you are
having RAM issues.   I had the same behavior until I enabled ECC
chipkill and started getting the MCE errors logged showing which module
was failing.

If you are running a non-ECC system you can stress it with memtester
with a min amount of ram loaded and add DIMMS back in until it starts
locking up again.    At least you can narrow it down to a pair and try
and swap in one known good one to decide between those two which is bad.

-James

-------- Original Message --------
Subject: 	Re: [Novalug] Why am I out of memory?
Date: 	Thu, 11 Aug 2011 19:39:27 -0400 (EDT)
From: 	Bonnie Dalzell <bdalzell@qis.net>
To: 	Roger W. Broseus <rogerb@bronord.com>
CC: 	novalug@calypso.tux.org



On Thu, 11 Aug 2011, Roger W. Broseus wrote:

> Might the problem be with chrome? I thought of this because FireFox sometimes causes problems. There
> is even a FireFox extension - Memory Restart - to monitory mem usage and force a restart.

AHA! I was becoming sure that Firefox had something major to do with the 
periodic freezing up of my computer. I will look for that extension. 
Thanks

I get these freeze ups where the mouse vanishes and non of the keystrokes 
to go to another terminal or anything. then sometimes the caps lock and 
scroll lock keys flash. The only thing I can do is  a hard reboot.

> 
> Try googling
>     chrome memory leak linux
> 
> I second other's notes about Linux and mem management. I run a virtual machine with Windows-7 on my
> Laptop with 2 GB of mem and don't kick over to swap unless I open several applications.
> 
> --
> Roger W. Broseus - Linux User
>     Email: RogerB@bronord.com
>     Web Site: www.bronord.com
> 
> On 08/11/2011 12:00 PM, novalug-request@calypso.tux.org wrote:
>
>    1. Why am I out of memory? (Alan Grimes)
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 10 Aug 2011 14:47:33 -0400
> From: Alan Grimes <agrimes@speakeasy.net>
> Subject: [Novalug] Why am I out of memory?
> To: novalug@calypso2.tux.org
> Message-ID: <4E42D245.5020502@speakeasy.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> Hello, I bought a monster machine last year with 8 gigs of ram, yet I 
> ran out just now. I don't use swap space because Linux badly abuses it, 
> murdering performance. So my dekstop nearly locked up.... Why did this 
> happen? =\
> 
> I was re-building chromium and the linker took up 2GB!! But that is only 
> a tiny fraction of the story because I had 6 other gb to play with...
> 
> Here is the worst offender list from top, sorted by %mem.
> 
> I can't wait for that new windowing system, X sucks nuts, as you can 
> see, it's the biggest memory hog on my system. =(
> 
>
>    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  CODE DATA 
> COMMAND 
>
>   3592 root      20   0  846m 678m  18m R    2  8.5   1681:34 1868 718m 
> X 
> 
> 19066 atg       20   0 1236m 445m  13m S    1  5.6 425:43.86   52 695m 
> seamonkey-bin 
> 
> 19133 atg       20   0 1284m 442m  10m S    8  5.5   1830:17   48 921m 
> plugin-containe 
>
>   4106 atg       20   0 1308m 402m 1060 S    0  5.0  19:45.87   64 680m 
> kdevelop 
> 
> 27804 atg       20   0 1222m 298m 6348 S    0  3.7 201:35.16  42m 878m 
> chrome 
> 
> 19752 atg       20   0  850m 199m 6996 S    0  2.5 442:11.28   56 338m 
> akregator 
>
>   6305 root      20   0  261m 160m 1612 S    2  2.0   2:39.99    4 158m 
> emerge 
> 
> 18848 atg       20   0  769m 123m 7508 S    0  1.5  89:17.13  42m 286m 
> chrome 
>
>   6114 atg       20   0  869m 100m 4448 S    0  1.3 175:53.52  956  89m 
> pidgin 
> 
> 10498 atg       20   0  510m 100m 1232 S    0  1.3  11:57.94   60 207m 
> okular 
> 
> 19936 atg       20   0 1023m  94m  232 S    0  1.2  19:41.77  42m 678m 
> chrome 
> 
> 21255 atg       20   0 1036m  88m 2112 S    0  1.1   0:55.26  42m 691m 
> chrome
> 
> 
>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                        Bonnie Dalzell, MA
mail:5100 Hydes Rd PO Box 60, Hydes,MD,USA 21082-0060|EMAIL:bdalzell@qis.net
Freelance anatomist, vertebrate paleontologist, writer, illustrator, dog
breeder, computer nerd & iconoclast... Borzoi info at www.borzois.com.
HOME www.batw.net    ART bdalzellart.batw.net  BUSINESS www.boardingatwedge.com



-- 
---
James M Keller

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