Bug 200715 - Kernel panic at boot.
Summary: Kernel panic at boot.
Status: RESOLVED INVALID
Alias: None
Product: Platform Specific/Hardware
Classification: Unclassified
Component: x86-64 (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: platform_x86_64@kernel-bugs.osdl.org
URL: https://bugs.launchpad.net/ubuntu/+so...
Keywords:
Depends on:
Blocks:
 
Reported: 2018-08-02 18:41 UTC by Sergij
Modified: 2018-08-10 00:22 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.14, 4.15, 4.18
Subsystem:
Regression: No
Bisected commit-id:

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Description Sergij 2018-08-02 18:41:57 UTC 
My distributive is xubuntu 16.04.

After update to the 4.15.x kernel my system cannot boot. It freezes after grub menu. I tried to boot recovery mode and saw kernel panic. Now my system can boot only on 4.13.x kernel.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1783358

The bug exists in upstream (tested v4.18-rc6 and v4.18-rc5).

Kernel bisection was done.
The bad commit is:
[7744ccdbc16f0ac4adae21b3678af93775b3a386] x86/mm: Add Secure Memory Encryption (SME) support.
Comment 1 Sergij 2018-08-10 00:22:51 UTC 
I'm sorry. I did not searching for BIOS updates well.
This solution work for me too.
https://bugzilla.redhat.com/show_bug.cgi?id=1520265
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