RDRAND issue

By: name (email.delete@this.email.em), August 11, 2019 9:35 am
Room: Moderated Discussions
anonymou5 (no.delete@this.spam.com) on August 10, 2019 2:52 pm wrote:
> > Zen 2 with the rdrand bug
>
> Is Family 17h actually affected?
>
> Because https://bugzilla.kernel.org/show_bug.cgi?id=85911 suggests only 22 = 16h = not Zen1/Zen2.
>
> And https://github.com/systemd/systemd/pull/12536/commits/1c53d4a070edbec8ad2d384ba0014d0eb6bae077
> doesn't seem to terrible for a workaround.
Actually, the Ryzen 3000 (Zen2) series was/is affected. According to user reports (such as https://www.reddit.com/r/Amd/comments/cmza34/agesa_1003_abb_fixes_rdrandrdseed/) a new firmware fixes the issue.

It seems AMD's QA is not the best - 'let the early adopters beta test the stuff first'.
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EPYC SAP-SD 2-tier benchmark resultsMichael S2019/08/08 05:18 AM
  EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownMichael S2019/08/08 08:29 AM
    Wrong headline. Should be "SPECpower_ssj2008 - EPYC2 is in class of its own" (NT)Michael S2019/08/08 08:51 AM
    EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/08 03:42 PM
      EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownblue2019/08/08 07:35 PM
      EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownMaynard Handley2019/08/08 08:58 PM
        EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon2019/08/09 02:00 AM
          EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/09 03:09 AM
            EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownblue2019/08/09 08:47 AM
        EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/09 02:12 AM
          EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownMaynard Handley2019/08/09 09:25 AM
            EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownDoug S2019/08/09 09:33 AM
              EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon2019/08/09 10:24 AM
            EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/10 04:04 AM
          EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon.12019/08/09 05:30 PM
        EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownme2019/08/09 09:58 PM
      EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon2019/08/09 12:47 AM
  EPYC SAP-SD 2-tier benchmark resultsLinus Torvalds2019/08/09 03:29 PM
    EPYC SAP-SD 2-tier benchmark resultsanon2019/08/10 07:20 AM
      EPYC SAP-SD 2-tier benchmark resultsme2019/08/10 07:36 AM
        EPYC SAP-SD 2-tier benchmark resultsanon2019/08/10 08:20 AM
          EPYC SAP-SD 2-tier benchmark resultsanon.12019/08/10 09:40 AM
            EPYC SAP-SD 2-tier benchmark resultsanon2019/08/10 10:38 AM
          EPYC SAP-SD 2-tier benchmark resultsblue2019/08/10 09:47 AM
        EPYC SAP-SD 2-tier benchmark resultsAdrian2019/08/10 10:43 AM
          EPYC SAP-SD 2-tier benchmark resultsme2019/08/10 11:06 AM
            EPYC SAP-SD 2-tier benchmark resultsMichael S2019/08/10 11:28 AM
    Big gotchas: poor specsjohn2019/08/10 10:54 AM
      Big gotchas: poor specsme2019/08/10 11:04 AM
      Big gotchas: poor specsanon2019/08/10 11:25 AM
        Big gotchas: poor specsLinus Torvalds2019/08/10 12:13 PM
          Big gotchas: poor specsanon2019/08/10 01:58 PM
          Big gotchas: poor caches⚛2019/08/12 01:51 AM
            Big gotchas: poor caches⚛2019/08/12 01:59 AM
            Big gotchas: poor cachesTravis Downs2019/08/12 09:15 AM
              parallelism vs. efficiencyhobold2019/08/13 04:43 AM
            Big gotchas: poor cachesAndy N2019/08/12 06:45 PM
              Big gotchas: poor cachesanon2019/08/13 12:43 AM
          Big gotchas: poor specsJouni Osmala2019/08/12 10:18 PM
            Big gotchas: poor specsAdrian2019/08/12 11:58 PM
              Kernel compile 25-30s, noise 25-27dBJouni Osmala2019/08/13 04:00 AM
                Quiet and fast workstationsGian-Carlo Pascutto2019/08/13 06:00 AM
                  Quiet and fast workstationsAdrian2019/08/13 07:01 AM
                  Quiet and fast workstationsDavid Hess2019/08/13 01:51 PM
                    Quiet and fast workstationsGian-Carlo Pascutto2019/08/14 12:43 AM
                      Quiet and fast workstationsMichael S2019/08/14 02:09 AM
                        Quiet and fast workstationsGian-Carlo Pascutto2019/08/14 02:59 AM
                          Quiet and fast workstationsDavid Hess2019/08/14 06:05 PM
                        Quiet and fast workstationsDavid Hess2019/08/14 05:56 PM
                      Quiet and fast workstationsDavid Hess2019/08/14 06:30 PM
                  Passively cooled threadripper/xeon WJouni Osmala2019/08/15 03:12 AM
                    Passively cooled threadripper/xeon WAdrian2019/08/15 03:47 AM
                      Passively cooled threadripper/xeon WJouni Osmala2019/08/15 05:58 AM
                        Passively cooled threadripper/xeon WAdrian2019/08/16 12:12 AM
                          Passively cooled threadripper/xeon WAdrian2019/08/16 12:21 AM
                          Passively cooled threadripper/xeon WJouni osmala2019/08/16 09:46 AM
                            Passively cooled threadripper/xeon WGroo2019/08/16 12:07 PM
                Kernel compile 25-30s, noise 25-27dBAdrian2019/08/13 06:39 AM
                Kernel compile 25-30s, noise 25-27dBLinus Torvalds2019/08/13 12:12 PM
                  which graphics card?anonymous22019/08/13 12:52 PM
                    which graphics card?Linus Torvalds2019/08/13 01:12 PM
                  Kernel compile 25-30s, noise 25-27dBDoug S2019/08/13 03:22 PM
                    Kernel compile 25-30s, noise 25-27dBDavid Hess2019/08/14 06:38 PM
                  Kernel compile 25-30s, noise 25-27dBJouni Osmala2019/08/14 12:09 AM
                    AIOsGroo2019/08/14 07:19 AM
                      AIOsGian-Carlo Pascutto2019/08/14 08:52 AM
                        AIOsGroo2019/08/14 09:49 AM
                      AIOsBrett2019/08/14 02:02 PM
                    Kernel compile 25-30s, noise 25-27dBLinus Torvalds2019/08/14 11:10 AM
                  Kernel compile 25-30s, noise 25-27dBGian-Carlo Pascutto2019/08/14 01:33 AM
                    Kernel compile 25-30s, noise 25-27dBAdrian2019/08/14 05:06 AM
                      Kernel compile 25-30s, noise 25-27dBGian-Carlo Pascutto2019/08/14 09:01 AM
                      AMD Bios, etc..Anon2019/08/14 11:39 PM
                        AMD Bios, etc..hobold2019/08/15 07:10 AM
                          AMD Bios, etc..Anon2019/08/15 04:20 PM
                        AMD Bios, etc..Jan Olšan2019/08/15 08:49 AM
                          AMD Bios, etc..Adrian2019/08/15 09:16 AM
                          AMD Bios, etc..Gro2019/08/15 10:57 AM
                        AMD Bios, etc..David Hess2019/08/16 05:39 AM
      Big gotchas: poor specsAdrian2019/08/10 01:28 PM
      Big gotchas: poor specsDummond D. Slow2019/08/10 01:57 PM
        Big gotchas: poor specsanon22019/08/11 12:33 AM
          Big gotchas: poor specsblue2019/08/11 12:57 AM
          Big gotchas: poor specsAdrian2019/08/11 05:41 AM
            Big gotchas: poor specsaaron spink2019/08/12 09:45 AM
              Big gotchas: poor specsFoo_2019/08/12 11:02 AM
              Big gotchas: poor specsTravis Downs2019/08/12 11:26 AM
                Big gotchas: poor specsGabriele Svelto2019/08/13 09:48 AM
                Big gotchas: poor specsaaron spink2019/08/13 07:23 PM
                  Big gotchas: poor specsDoug S2019/08/13 11:15 PM
                    Big gotchas: poor specsGian-Carlo Pascutto2019/08/14 01:35 AM
                    Big gotchas: poor specsaaron spink2019/08/15 05:16 PM
                      Big gotchas: poor specsJouni Osmala2019/08/15 09:03 PM
                        Big gotchas: poor specsaaron spink2019/08/19 04:05 AM
                          Big gotchas: poor specsMichael S2019/08/19 04:37 AM
                            Big gotchas: poor specsRicardo B2019/08/19 05:40 PM
                              Big gotchas: poor specsAaron Spink2019/08/25 02:29 AM
              Big gotchas: poor specsAdrian2019/08/12 11:31 AM
              Big gotchas: poor specsJukka Larja2019/08/13 07:37 AM
              Big gotchas: poor specsLinus Torvalds2019/08/13 11:31 AM
          Big gotchas: poor specsDummond D. Slow2019/08/11 06:23 AM
      FX-9590 > i7-9700KGian-Carlo Pascutto2019/08/12 10:37 AM
    RDRAND issueanonymou52019/08/10 02:52 PM
      RDRAND issueLinus Torvalds2019/08/10 04:15 PM
        RDRAND issueGionatan Danti2019/08/11 01:35 AM
          RDRAND issueLinus Torvalds2019/08/11 10:43 AM
            RDRAND issueLinus Torvalds2019/08/11 11:05 AM
              RDRAND issue@never_released2019/08/11 11:10 AM
                RDRAND issueLinus Torvalds2019/08/11 01:13 PM
                  Err....Groo2019/08/11 06:47 PM
                    Err.... This is a zero content fud posteye roll2019/08/11 08:48 PM
                    Err....Brendan2019/08/11 08:50 PM
                    Err....Jukka Larja2019/08/12 07:38 AM
                  RDRAND issueJose2019/08/12 02:33 AM
              RDRAND issueGionatan Danti2019/08/11 02:12 PM
            RDRAND issueaaron spink2019/08/12 09:18 AM
      RDRAND issuename2019/08/11 09:35 AM
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