** Changed in: systemd (Ubuntu)
Assignee: (unassigned) => Balint Reczey (rbalint)
** Changed in: systemd (Ubuntu)
Status: Confirmed => In Progress
** Also affects: systemd (Ubuntu Disco)
Importance: Undecided
Status: New
** Changed in: systemd (Ubuntu Disco)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1835809
Title:
AMD Ryzen 3000 series fails to boot
Status in systemd package in Ubuntu:
In Progress
Status in systemd source package in Disco:
In Progress
Bug description:
On the new AMD Ryzen 3000 series CPUs, there is an issue with systemd
preventing the boot process from completing. This issue does not
affect the older systemd version in 18.04, but affects the 19.04
version.
Here is a screenshot showing what happens:
https://www.phoronix.net/image.php?id=ryzen-3700x-3900x-linux&image=amd_zen2_14_show
I am currently testing a patch to systemd, derived from this pull request:
https://github.com/systemd/systemd/pull/12536
This is a high severity issue, as I do not believe there is no
potential workaround without either a firmware update or an ISO
respin.
I have attached a rebase of the potential patch on the current 19.04
version of systemd for reference. I will provide more details after
testing.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1835809/+subscriptions
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