[Bug 1776563] Re: Acer Aspire A315 IOAPIC failure on Ubuntu 18.04, kernel hangs, can't load, kernel freeze (AMD Ryzen 5/Radeon/Raven) / AMDGPU Hybrid crash

I never made a battery reset but it's the same since the day when I
bought it and I've try differents bios, resetting bios, reinstalling
entire ssd, and I still get a fast dried battery on linux. (so it should
not linked to my battery but to linux)

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https://bugs.launchpad.net/bugs/1776563

Title:
Acer Aspire A315 IOAPIC failure on Ubuntu 18.04, kernel hangs, can't
load, kernel freeze (AMD Ryzen 5/Radeon/Raven) / AMDGPU Hybrid crash

Status in amd:
New
Status in Linux:
Incomplete
Status in linux package in Ubuntu:
Triaged
Status in linux-firmware package in Ubuntu:
Confirmed

Bug description:
CPU: Ryzen 5 2500U
VGA: Radeon 535
Notebook: Acer Aspire A315

This is a brand new notebook on the market with Ryzen 5/Radeon.
The default kernel of Ubuntu(18.04) hangs at loading with message:

tsc: Refined TSC clocksource calibration: 1996.250 MHz
clocksource: tsc: mask: 0xffffffffffffffff max_cycles: (...), max_idle_ns: (...)
Soft lockup

Using pci=noacpi kernel parameter kernel loads without any problem but
my notebook produces more heat than on Win10. If I know right Acer
notebooks need ACPI to the correct power management.

The same thing happens on mainline 4.17,4.18rc1-2.
BIOS upgrade to the latest version: 1.08 hasn't helped

This problem has been reported upstream:
https://bugzilla.kernel.org/show_bug.cgi?id=200087

The latest correctly working kernel was 4.13.* but the heat problem
was present with this too.

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