Bug 212543

Summary: Random freeze with 5.11.x kernels
Product: Platform Specific/Hardware Reporter: Chromer (downloader030)
Component: x86-64Assignee: platform_x86_64 (platform_x86_64)
Status: NEW ---    
Severity: high CC: kts
Priority: P1    
Hardware: Intel   
OS: Linux   
Kernel Version: 5.11.11 Subsystem:
Regression: No Bisected commit-id:

Description Chromer 2021-04-04 18:19:33 UTC 
On 5.11 kernel series, there is occasionally random hard freeze , needs hard reset.

Arch Linux
Kernel : 5.11.11
CPU : Intel Haswell G3250
RAM : DDR3 8GB
MB : Gigabytes H81M-S2PV
GPU : Radeon HD 4650

Log from 5.11.11:

Apr  4 15:47:20 xxx kernel: mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 3: be00000000800400
Apr  4 15:47:20 xxx kernel: mce: [Hardware Error]: TSC 0 ADDR ffffffffc07e06cc MISC ffffffffc07e06cc 
Apr  4 15:47:20 xxx kernel: mce: [Hardware Error]: PROCESSOR 0:306c3 TIME 1617535033 SOCKET 0 APIC 0 microcode 28

Apr  4 15:47:20 xxx kernel: mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 3: be00000000800400
Apr  4 15:47:20 xxx kernel: mce: [Hardware Error]: TSC 0 ADDR ffffffffc0e4b269 MISC ffffffffc0e4b269 
Apr  4 15:47:20 xxx kernel: mce: [Hardware Error]: PROCESSOR 0:306c3 TIME 1617535033 SOCKET 0 APIC 2 microcode 28
Comment 1 Chromer 2021-04-04 18:25:33 UTC 
Hardware is fully tested under windows and all of them are fully healthy.
No freeze under 5.10 kernel series.