[pve-devel] applied: [PATCH kernel] Add MCE patch for Threadripper 3000 series compatibility

Thomas Lamprecht t.lamprecht at proxmox.com
Wed Jan 15 15:27:37 CET 2020


On 1/15/20 2:54 PM, Stefan Reiter wrote:
> A forum user reported that our kernel does not boot on Threadripper 3000
> series CPUs, unless 'mce=off' is provided on the kernel commandline. [0]
> 
> This is a known issue, which has been fixed in mainline kernels and
> backported to 5.4, 4.19 and 4.14 [1]. It is not, however, included in
> 5.3, nor in the Ubuntu builds. [2]
> 
> This patch is the original one posted for 5.5, which is the same as the
> one ported to 5.4. It also applies cleanly to 5.3, and should work the
> same, seeing as the backports to older versions do not have functional
> changes either.
> 
> [0] https://forum.proxmox.com/threads/bug-pve-wont-boot-properly.63432/
> [1] https://patchwork.kernel.org/project/linux-edac/list/?q=Allow+Reserved+types+to+be+overwritten+in+smca_banks
> [2] https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/eoan/log/?qt=grep&q=Allow+Reserved+types+to+be+overwritten+in+smca_banks
> 
> Signed-off-by: Stefan Reiter <s.reiter at proxmox.com>
> ---
> 
> Not sure if we usually include fixes like that, but I feel like this could avoid
> a lot of Forum threads once TR 3000 gets more commonplace :)
> 
> 
>  ...w-Reserved-types-to-be-overwritten-i.patch | 88 +++++++++++++++++++
>  1 file changed, 88 insertions(+)
>  create mode 100644 patches/kernel/0006-x86-MCE-AMD-Allow-Reserved-types-to-be-overwritten-i.patch
> 


applied, thanks!





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