On Mon 2019-05-27 10:51:55, Pavel Machek wrote: > Hi! > > So if you compile a kernel, then reboot, boot will hang after "Freeing SMP > alternatives memory" (and then wastes power, making thermal situation even worse). Normally, next message is "smpboot: CPU0: Genuine Intel...". I added some printks, and check_bugs() returns. Then it goes to ACPI and never comes back... kernel-parameters.txt points to Documentation/acpi/debug.txt, but that one does not exist. Any ideas what debugging parameters to use for ACPI? I either get nothing or so much that machine does not boot... > Unfortunately, threshold for non-booting system is quite low, fan does _not_ > go full speed after reboot. Annoying for kernel development :-(. Force power off, > wait for a while, power on, and it works again. > > The bug is there for a long long time... probably 4.0 is affected, probably even > older. Quick test, and 4.6.0 seems to be affected. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
