Date: Fri, 13 Mar 2015 14:02:31 +0100 From: Matthias Apitz <guru@unixarea.de> To: freebsd-current@freebsd.org Subject: Acer C720 random complete power-off Message-ID: <20150313130231.GA26391@sh4-5.1blu.de>
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Hello, I run HEAD i386 on an Acer C720 netbook (the so called Cromebook), which works pretty much fine and very fast. The device is used on a daily basis with 18++ hours uptime a day. >From time to time (since January exactly 5 times) I faced a complete randomly power-off of the device. Please, do not think in the usual suspects of CPU heat or power drain. I monitor in a file every time the exact device situation, which is here: http://www.unixarea.de/c720-crashes.html In /var/log/messages are no indications, and if the system would have written something in its last second, it is perhaps rolled back by the fsck on reboot. What I wanted to ask here: Is there any way to read any information out of local memory buffers when the system comes up again or any other way to understand what could cause this problem. I have to admit, that until now I was never present with my eyes when it happened, I was always somehow a way from the display (running KDE4), and when I returned to it, I found it black. Thanks in advance. matthias -- Matthias Apitz | /"\ ASCII Ribbon Campaign: E-mail: guru@unixarea.de | \ / - No HTML/RTF in E-mail WWW: http://www.unixarea.de/ | X - No proprietary attachments phone: +49-170-4527211 | / \ - Respect for open standards | en.wikipedia.org/wiki/ASCII_Ribbon_Campaign
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