I got the same error with the suggested mainline kernel. I am unable to
run the ubuntu-bug linux command, it complains there is a missing
package.
The CPU is water cooled, so either it has broken or there is a problem in some
other hardware.
I might have to change CPU and thus a large portion
MCE is from CPU, so it's possible that memtest can pass.
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.6-rc7/
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I started seeing this error when moving to 19.04 and later to 20.04.
I suspected a hardware error, yet memtest (from a Ubuntu boot) comes out fine,
after a couple of hours.
I suspected hardware since failure tends to happen when the system does heavy
load, although it happened on normal
[ 1736.165122] mce: [Hardware Error]: CPU 4: Machine Check Exception: 5 Bank 0:
f2070005
[ 1736.165125] mce: [Hardware Error]: RIP !INEXACT! 33:<7fffd19a92e1>
[ 1736.165126] mce: [Hardware Error]: TSC e32f5eeda4d6
[ 1736.165127] mce: [Hardware Error]: PROCESSOR 0:50654 TIME
Seems to be a hardware error. Do you see this in previous kernel
versions?
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https://bugs.launchpad.net/bugs/1868494
Title:
The system hangs after a while of usage
Status
** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1868494
Title:
The system hangs after a while of usage
Status in linux package in Ubuntu:
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