Ahead of the Linux 7.0 stable kernel release expected later today are some last minute pull requests sent out this morning. Notable for those using AMD Zen 3 hardware is addressing some bogus hardware errors that began appearing for some users on recent versions of the Linux kernel.

Sent out today is a patch to filter the bogus hardware errors appearing for some users on AMD Ryzen 5000 series (Zen 3) hardware. This fix is also marked for back-porting to recent stable versions of the Linux kernel too, beyond Linux 7.0.

Users began reporting issues around L3 cache deferred errors following a recent Linux kernel rework to the error handling code. The errors ultimately are bogus and contained "garbage values" but alas caused confusion and bug reports by users. The patch for today is safe for this late stage of the Linux 7.0 cycle as it's ultimately just a CPU ID / model / stepping check for filtering out more MCE messages.

[1]This pull request has that AMD MCE driver patch for filtering out bogus hardware errors on AMD Zen 3 clients.



[1] https://lore.kernel.org/lkml/adtIA19aXnpu190p@gmail.com/