[opensuse-kde] How to debug a crash freeze
Since several month I try to understand (from time to time) why one of my tumbleweed computer freeze. I post here, cause it only happen if the graphics session is running. It's a pure default plasma5 tumbleweed (installed in December) and regulary updates with only oss repository. What happen is a complete freeze of the graphical interface, with no more data on screen The whole computer is frozen (no sysreq, no network) following journalctl -b -f -n 256 from a remote location didn't give a clue of what happening. If the computer is started without plasma5 opened, it can runs days without any problems. (Same under windows 7 & 10 no trouble, even with heavy games). The hardware is a AMD FX8120 cpu with 16Gb ram + a samsung 840Pro SSD. TW use proposed partitionning with btrfs (That's why this computer is at its third new reinstallation ;-) the gpu is an old AMD HD5750 (~2008). It seems to me, that each time the screen dim or powerdown is involved the crash occurs. Can someone drive me to activate the right debug flags and try to grab a backtrace. Thanks. -- Bruno Friedmann Ioda-Net Sàrl www.ioda-net.ch openSUSE Member, fsfe fellowship GPG KEY : D5C9B751C4653227 irc: tigerfoot -- To unsubscribe, e-mail: opensuse-kde+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kde+owner@opensuse.org
On 13/04/2016 12:18 AM, Bruno Friedmann wrote:
It seems to me, that each time the screen dim or powerdown is involved the crash occurs.
Maybe if you disable the powersaving features? -- Lindsay Mathieson -- To unsubscribe, e-mail: opensuse-kde+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kde+owner@opensuse.org
On 2016-04-12 16:18, Bruno Friedmann wrote:
The whole computer is frozen (no sysreq, no network) following journalctl -b -f -n 256 from a remote location didn't give a clue of what happening.
You can tell the kernel to send its log to a remote computer. The best is using a real serial port (rs232), but most computer don't have this hardware. The alternative is using network. If you are interested, I'll post details. Or search for "netconsole". -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
participants (3)
-
Bruno Friedmann
-
Carlos E. R.
-
Lindsay Mathieson