Standard kernel (I was using Archlinux's 4.18.6, I've tried 4.18.7 in testing too) does not boot on my machine with error saying that Kernel panic - not syncing: timer doesn't work through Interrupt-remapped IO-APIC Screenshot of the whole error (sorry, phone photo of the screen, didn't figure out how to save the error in text form) attached. By adding `amd_iommu=off` to the kernel command line I'm able to boot the system (there are other issues but probably unrelated). I'm also using `ivrs_ioapic[32]=00:00.2` to get rid of the "Firmware Bug" line. My system is fairly new hardware, here's lspci $ lspci 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15d0 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 15d1 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3 00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3 00:01.6 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15db 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15dc 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e8 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e9 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ea 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15eb 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ec 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ed 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ee 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ef 01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter 02:00.0 Non-Volatile memory controller: Lenovo Device 0006 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e) 03:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a (rev 0e) 03:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b (rev 0e) 03:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c (rev 0e) 03:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e) 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10) 05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev d0) 05:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15de 05:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 15df 05:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e0 05:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e1 05:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Device 15e3 06:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61) If more information is needed, I would be happy to provide.
Created attachment 278525 [details] Screenshot of the error