memory errors

By: rwessel (rwessel.delete@this.yahoo.com), March 4, 2021 5:14 pm
Room: Moderated Discussions
David Hess (davidwhess.delete@this.gmail.com) on March 4, 2021 1:44 pm wrote:
> dmcq (dmcq.delete@this.fano.co.uk) on March 4, 2021 6:40 am wrote:
> >
> > The initialisation problem could have been easily solved by simply only initialising a page when
> > it was allocated, or ovcerwriting it if it is set from disk. You'd still get some seconds spent
> > on the job but the user wouldn't notice. I can't really believe they wouldn't think of that never
> > mind that booting took a long time anyway so this would be no sort of great gain.
>
> I have not noticed any delay on my workstation which has 64G.
>
> The entire memory would have to be initialized before memory scrubbing could be used. Without scrubbing,
> memory could be initialized as written but this would return errors if uninitialized memory was accessed.


That actually raises a broader question. I wonder how real scrubbing implementations work in the context of a page with a (hard) error. You really want to stop scrubbing on such pages, at least once the OS has decommissioned the page, or you're just going to pointlessly fill your error logs with duplicate messages.
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TopicPosted ByDate
CPU & Memory bit flipsGanon2021/03/03 09:05 AM
  Also "Silent Data Corruption"Adrian2021/03/03 10:42 AM
    Thanks for the referenceGanon2021/03/03 11:47 AM
  Implications for linux page cacheanon2021/03/03 11:54 AM
    Implications for linux page cacheLinus Torvalds2021/03/03 01:54 PM
      memory errorsblaine2021/03/03 02:53 PM
        memory errorsanon22021/03/03 05:30 PM
          memory errorsdmcq2021/03/04 05:16 AM
            memory errorsEtienne Lorrain2021/03/04 06:26 AM
              memory errorsdmcq2021/03/04 06:40 AM
                memory errorsEtienne Lorrain2021/03/04 06:58 AM
                  memory errorsdmcq2021/03/04 07:12 AM
                  memory errorsCarson2021/03/05 02:31 AM
                    memory errorsEtienne Lorrain2021/03/05 06:23 AM
                      memory errorsrwessel2021/03/05 07:48 AM
                      memory errorsdmcq2021/03/05 12:01 PM
                        memory errorsrwessel2021/03/05 12:23 PM
                          memory errorsdmcq2021/03/05 12:51 PM
                      memory errorsBrendan2021/03/05 11:38 PM
                      memory errorsCarson2021/03/06 01:35 AM
                        memory errorsCarson2021/03/06 06:24 AM
                memory errorsDavid Hess2021/03/04 01:44 PM
                  memory errorsrwessel2021/03/04 05:14 PM
                  memory errorsLinus Torvalds2021/03/04 08:21 PM
                    memory errorsanon22021/03/04 09:46 PM
                      memory errorsCarson2021/03/05 02:43 AM
                        memory errorsanon22021/03/05 07:55 AM
                    memory errorsgallier22021/03/05 02:22 AM
                  memory errorsdmcq2021/03/05 12:59 PM
                    memory errorsDavid Hess2021/03/06 04:27 AM
                      memory errorsCarson2021/03/06 06:44 AM
                      memory errorsGabriele Svelto2021/03/06 10:11 AM
                        memory errorsDavid Hess2021/03/06 10:28 AM
                          memory errorsMichael S2021/03/06 02:45 PM
              memory errorsDoug S2021/03/04 10:48 AM
                memory errorsMichael S2021/03/04 11:36 AM
              memory errorsJörn Engel2021/03/04 03:32 PM
                memory errorsLinus Torvalds2021/03/04 08:47 PM
                  memory errorsEtienne Lorrain2021/03/05 01:09 AM
                  memory errorsMichael S2021/03/05 04:06 AM
                    memory errorsLinus Torvalds2021/03/05 11:59 AM
                      memory errorsrwessel2021/03/05 12:32 PM
                        memory errorsrwessel2021/03/05 12:37 PM
                        memory errorszArchJon2021/03/06 08:39 PM
                      memory errorsGabriele Svelto2021/03/06 12:58 PM
                  memory errorsJörn Engel2021/03/05 10:12 AM
                Amiga recoverable RAM disk?Carson2021/03/05 03:03 AM
                  Thanks - TIL a cool Amiga feature (nt) (NT)John2021/03/05 12:51 PM
                    Another cool Amiga feature, datatypesCharles2021/03/06 12:01 AM
                      Another cool Amiga feature, datatypesJukka Larja2021/03/06 01:23 AM
                      Another cool Amiga feature, datatypesAnon2021/03/06 12:40 PM
                      Another cool Amiga feature, filesystemsMarcus2021/03/07 12:28 AM
  CPU & Memory bit flipszArchJon2021/03/04 06:39 AM
    CPU & Memory bit flipsdmcq2021/03/04 06:59 AM
      CPU & Memory bit flipsrwessel2021/03/04 12:27 PM
  speak of the devilRobert Williams2021/03/05 07:53 AM
    speak of the devildmcq2021/03/05 11:26 AM
      speak of the devilRobert Williams2021/03/05 03:15 PM
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