I think we should make an appeal directly to Intel. This problem is NOT
difficult to reproduce! If you turned off login security - I bet we
could make a shell script that launches VLC or something like it to
automate the entire process of testing a new kernel version... without
needing to touch a keyboard. I suspect Intel has special motherboards
or chipsets so they force the CPU to wake up in such a crash... as it
seems the issue is that it goes to sleep so deeply that it can't even
detect it's own crash (and as I mentioned, the motherboard is supposed
to have a watchdog in it for such situations - and seems to not work or
be properly setup by Linux kernel).
Here is at least a starting point on this line of CPU ("Bay Trail" and
newer) and the Watchdog on Linux:
https://communities.intel.com/thread/56428
And here is when it was supposed to be added to the kernel?
https://lkml.org/lkml/2014/3/10/583
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https://bugs.launchpad.net/bugs/1575467
Title:
[Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts-
utopic-vy2yyy/linux-lts-
utopic-3.16.0/drivers/gpu/drm/i915/intel_display.c:1743
vlv_wait_port_ready+0x126/0x170 [i915]()
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