Hi Dave,
On 2/27/24 00:21, Dave Hansen wrote:
On 2/25/24 17:57, Yin Fengwei wrote:
On 2/23/24 02:08, Paolo Bonzini wrote:
On Thu, Feb 22, 2024 at 7:07 PM Dave Hansen dave.hansen@intel.com wrote:
Ping, in the end are we applying these patches for either 6.8 or 6.9?
Let me poke at them and see if we can stick them in x86/urgent early next week. They do fix an actual bug that's biting people, right?
Yes, I have gotten reports of {Sapphire,Emerald} Rapids machines that don't boot at all without either these patches or "disable_mtrr_cleanup".
We tried platform other than Sapphire and Emerald. This patchset can fix boot issues on that platform also.
Fengwei, could you also test this series on the troublesome hardware, please?
https://lore.kernel.org/all/20240222183926.517AFCD2@davehans-spike.ostc.inte...
If it _also_ fixes the problem, it'll be a strong indication that it's the right long-term approach.
I tried your patchset on a Sapphire machine which is the only one broken machine I can access today. The base commit is 45ec2f5f6ed3 from the latest linus tree.
Without your patchset, the system boot hang. With your patchset, the system boot successfully.
Regards Yin, Fengwei