random reboots of my Lenovo ThinkPad (3.16.7-ckt20-1+deb8u1) (kernel stack trace)
Hi!
My old Lenovo ThinkPad T61 laptop reboots by itself from time to time.
Usually without a clue, but this time I was able to capture the stack
trace:
http://people.eisenbits.com/~stf/load/20151222-kernel-stack-trace.png .
How to debug it? I've installed linux-image-3.16.0-4-amd64-dbg package:
https://packages.debian.org/jessie/linux-image-3.16.0-4-amd64 , now is
/usr/lib/debug/vmlinux-3.16.0-4-amd64 the vmlinux file matching my
kernel version? What does "ckt20" stand for?
For now I just wanted to follow the stack trace, eg. with addr2line.
Sometimes it prints out some source code address but usually just
"??:0". Why?
Perhaps this is a hardware error, but where? Is this the graphic card?
Or the south bridge maybe?
Is this patchable?
Thanks!
This is the latest Debian Jessie.
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