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Add fix for Linux HVM kernel error on bootup: BUG: soft lockup - CPU#0 stuck for 23s! [systemd-udevd:244]

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Joe Thielen 2016-09-24 12:38:18 -04:00 committed by GitHub
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managing-os/linux-hvm-tips.md
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@ -11,6 +11,41 @@ redirect_from:
Tips for Linux in HVM domain
============================
Fixing bootup kernel error `BUG: soft lockup - CPU#0 stuck for 23s! [systemd-udevd:244]`
----------------------------------------------------------------------------------------
*Tested with Qubes R3.2-RC3*
Issue may be related to "bochs_drm" video driver.
To fix:
1. Edit the file /etc/default/grub
2. Find the line which starts:
~~~
GRUB_CMDLINE_LINUX=
~~~
3. Remove this text from that line:
~~~
rhgb
~~~
4. Add this text to that line:
~~~
modprobe.blacklist=bochs_drm
~~~
5. Run this command:
~~~
grub2-mkconfig --output=/boot/grub2/grub.cfg
~~~
The HVM should no longer display the error if it's related to the "bochs_drm" kernel driver.
Screen resolution
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