On 2018-01-03 17:48, Linda Walsh wrote:
* For good measure, similar software protections will be included on 64-bit ARM kernels as well; While AMD chips aren't affected by this bug, it's hard to see an update physically-splitting (instead of just virtually-splitting) all kernel & user code, only being applied against Intel and ARM (i.e. AMD chip-based systems may likely be affected by the slowdown due to the fix being applied across 64-bit kernels.
AMD has asked the measure not be applied to their processors. Any method to know if /my/ processor is affected? It was bought several years ago. A list of exact processor models for looking in /proc/cpuinfo, perhaps.
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Of course, Intel hasn't stepped up to say they'll replace the faulty chips, which seem to be related mostly to Intel-specific chip speedups not in other chips (like Intel's "speculative execution" feature that pre-executes multiple branches of a conditional ahead of knowing which branch will be taken). Intel has a history of offering replacing HW or compensation for their chips being hit by a 20% perf-penalty in the field.
Lovely...
Indeed. :-/ I guess they don't have the kind of money needed. -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)