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To: gentoo-user@lists.gentoo.org
From: Nikos Chantziaras <realnc@gmail.com>
Subject: [gentoo-user] Re: kernel panick after time while compiling....
Date: Mon, 27 May 2013 02:39:07 +0300
Organization: Lucas Barks
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On 27/05/13 02:15, Tamer Higazi wrote:
> Hi people!
> When I merge large or big packages like firefox, thunderbird or
> chromium. The system hangsup with "kernel panick" and displays on the
> screen reboot after 30 seconds.
>
> What could it be?!

Install sys-apps/memtest86+ make a bootloader entry for it and boot it. 
Sounds like a RAM problem and memtest will help you find out whether 
that's the case.