Intel's Linux Graphics Driver Gets Patched For A Gen9 Graphics Vulnerability

[saski]

forcibly clearing the EU state on each context switch sounds expensive - I assume there will be a short article benchmarking it Michael ?

Expensive is one way to put it. With the patch enabled my Laptop consumes considerably more power (1.5-2 Watts average) on light tasks like vaapi decoding or webbrowsing resulting in ~25% less battery life. Powertop shows RC6 is reached for the GPU but deeper package states are far less than before. The worst thing is that there is NO WAY to switch this patch off! Gonna Stick with 5.3 Kernel until I find an good AMD laptop.

[Michael]

Ivybridge + Haswell also affected - https://www.phoronix.com/scan.php?pa...-Graphics-Flaw

[Michael]

Gen9 benchmarks underway...

[boxie]

If it is, hopefully there's a way to disable it. Local access exploits don't bother me as much for personal machines, especially if there is notable perf regression from their fixes.

well if it can be exploited via a web browser you might just need to have it enabled all the time.

come to think of it, it probably has a hit on energy usage as well.

[polarathene]

forcibly clearing the EU state on each context switch sounds expensive

If it is, hopefully there's a way to disable it. Local access exploits don't bother me as much for personal machines, especially if there is notable perf regression from their fixes.

10 was Cannonlake.

Ah, that was short lived. Thanks

[boxie]

forcibly clearing the EU state on each context switch sounds expensive - I assume there will be a short article benchmarking it Michael ?

[Michael]

Last of the Gen9 gpu line is Comet Lake(and Whiskey Lake prior to it, which came after Coffee Lake afaik). Whatever happened to Gen10 graphics though? Just like Windows skipping a 9th version..

10 was Cannonlake.

[polarathene]

Last of the Gen9 gpu line is Comet Lake(and Whiskey Lake prior to it, which came after Coffee Lake afaik). Whatever happened to Gen10 graphics though? Just like Windows skipping a 9th version..

[r1348]

Oh, Intel!

[tildearrow]

The processor isn't just sad, it's crying already :<