[Phoronix] AMD Releases BIOS Fix To Motherboard Partners For Booting Newer Linux Distributions - Overclock.net - An Overclocking Community

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[Phoronix] AMD Releases BIOS Fix To Motherboard Partners For Booting Newer Linux Distributions

 
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post #1 of 9 (permalink) Old 07-12-2019, 10:03 AM - Thread Starter
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[Phoronix] AMD Releases BIOS Fix To Motherboard Partners For Booting Newer Linux Distributions

Source: https://www.phoronix.com/scan.php?pa...Linux-Zen2-Fix

Quote:
AMD has just alerted us that they have released a BIOS fix to their motherboard partners that takes care of the issue around booting newer Linux distributions on the new Zen 2 processors.

Earlier this week I mentioned AMD would be working on a BIOS fix to address the fundamental problem with booting newer systemd-using Linux distributions on their new Ryzen 3000 series processors. However, I hadn't expected the fix to make it to motherboard vendors in less than one week!

The problem is the RdRand issue colliding with systemd that is making use of the RdRand instruction directly and not jiving with the expected behavior. There's been a patch in systemd since May but that hasn't been found in a released version yet. But for newer Linux distributions like Ubuntu 19.04, Clear Linux, Fedora Workstation 31, Arch Linux / Manjaro, and others, it's meant not being able to boot the distribution due to all systemd services failing to start.

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post #2 of 9 (permalink) Old 07-12-2019, 01:17 PM
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It also fixes the problem with Destiny 2.

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post #3 of 9 (permalink) Old 07-12-2019, 01:25 PM
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makes sense. for a loot game, you'd make sure RNG works properly

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post #4 of 9 (permalink) Old 07-12-2019, 01:26 PM - Thread Starter
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Quote: Originally Posted by Diffident View Post
It also fixes the problem with Destiny 2.
I noticed and updated the Destiny 2 thread. Hopefully this bios fix is pushed before OEM products hit the shelf. I'm sure a ton of kids won't know they need to flash their bios to play a game.

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post #5 of 9 (permalink) Old 07-12-2019, 01:46 PM
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Quote: Originally Posted by WannaBeOCer View Post
I noticed and updated the Destiny 2 thread. Hopefully this bios fix is pushed before OEM products hit the shelf. I'm sure a ton of kids won't know they need to flash their bios to play a game.
OS patches can push firmware as well, provided it may not "stick" across different boots.

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post #6 of 9 (permalink) Old 07-12-2019, 07:57 PM
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Any mention of what agesa number is needed for this to be fixed?

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post #7 of 9 (permalink) Old 07-12-2019, 10:05 PM
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AMD doesn't prioritize Linux, but I knew that this was a big enough embarrassment that they would allocate plenty of resources. Didn't expect it to be patched in under a week, though.

I calculated the odds of this succeeding versus the odds I was doing something incredibly stupid... and I went ahead anyway.

If it's not coming out for the PC, it's dead to me.
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post #8 of 9 (permalink) Old 07-12-2019, 10:17 PM
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Lets test Linux before we launch? Nah, no one uses it anyway.
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post #9 of 9 (permalink) Old 07-12-2019, 10:26 PM
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Let's face it all the best dies going to EPYC + Threadripper . It's a beta test.

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