A last-minute patch has been merged into Linux 7.0 to filter out bogus L3 cache deferred hardware errors appearing on AMD Ryzen 5000 series (Zen 3) processors. The errors, which contained garbage values, were triggered by a recent rework of the kernel's error handling code and caused user confusion. The fix uses a CPU ID/model/stepping check to suppress the false MCE messages and is also slated for back-porting to recent stable kernel versions.
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