Public bug reported:
Basically the same symptoms as #1882809, but with 20.04 and on an
i7-8665U (Dell Latitude 7300).
Affected version is 3.20200609.0ubuntu0.20.04.0 (tested with kernels
5.4.0-33 and 5.4.0-37)
CPU:
Vendor ID: GenuineIntel
CPU family: 6
Model: 142
Model name: Intel(R) Core(TM) i7-8665U CPU @ 1.90GHz
Stepping: 12
microcode: sig=0x806ec, pf=0x80, revision=0xca
The first sign of a problem was a hard lockup while processing the new
microcode package as part of a larger update; after fixing the resulting
mess and completing the update (which regenerated the initramfs) I
started having random lockups early in the boot process, with just
"Loading initramfs" printed on the console.
Downgrading intel-microcode to 3.20191115.1ubuntu3 and regenerating the
initramfs fixes the problem.
** Affects: intel-microcode (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1883002
Title:
intel-ucode 20200609: hangs on Whiskey Lake
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