Windows 10 random hg verify errors?

[Eric Pyle]

We swapped out the CPU with a similar unit and the problem went away. So
Dell replaced my CPU under warranty.

Thanks for everyone's help. Glad to have this issue behind me.

Eric

On Thu, Feb 18, 2016 at 4:48 PM, Matt Mackall <mpm at selenic.com> wrote:

> On Wed, 2016-02-17 at 15:09 -0600, Eric Pyle wrote:
> > Good news (sort of). I decided to use *msconfig* advanced options to
> limit
> > my computer to *1 CPU*, and it seems to have made a world of (good)
> > difference. I haven't encountered the random errors again, and I'm able
> to
> > download big files and do big hg clones which were also an issue. I
> > couldn't even download tortoisehg-3.5.2-x64.msi without getting Network
> > error across different browsers.
> >
> > Basically, when I tried cloning, mozilla-central, per Gregory Szorc's
> > suggestion, I encountered the same network errors that eventually led to
> me
> > investigating random integrity errors with hg verify issue.
> >
> > One clone failed with integrity check failure:
> >
> > % hg clone --verbose https://hg.mozilla.org/mozilla-central/
> > > "C:\Users\pylee\Documents\ubsicap\repos\mozilla-central"
> > > applying clone bundle from
> > >
> https://hg.cdn.mozilla.net/mozilla-central/6ea654cad929c9bedd8a4161a182b6189
> > > fbeae6a.gzip.hg
> > > adding changesets
> > > transaction abort!
> > > rollback completed
> > > abort: *integrity check failed* on 00changelog.i:b8802b591ce2!
> > > [command returned code 255 Wed Feb 17 13:24:19 2016]
>
> Symptomatic of hardware failure. You're probably not seeing this sort of
> thing
> with other software because other software doesn't end-to-end
> cryptographically
> checksum all the data in works on, so one bit errors don't cause it to
> explode.
>
> > Most of the time I would get this DECRYPTION_FAILED_OR_BAD_RECORD_MAC
> error:
> >
> > % hg clone --verbose https://hg.mozilla.org/mozilla-central/
> > > "C:\Users\pylee\Documents\ubsicap\repos\mozilla-central"
> > > applying clone bundle from
> > >
> https://hg.cdn.mozilla.net/mozilla-central/6ea654cad929c9bedd8a4161a182b6189
> > > fbeae6a.gzip.hg
> > > adding changesets
> > > adding manifests
> > > transaction abort!
> > > rollback completed
> > > abort: error: DECRYPTION_FAILED_OR_BAD_RECORD_MAC
> > > [command returned code 255 Wed Feb 17 13:34:02 2016]
>
> Same.
>
> Looking at the specs for your machine, I note two things:
>
> - non-ECC RAM
> - 4-core chip
>
> I'd usually blame this on bad RAM as modern CPUs tend to have ECC on their
> internal caches. But it's totally possible you have a core-specific
> failure or a
> northbridge problem of some sort.
>
> --
> Mathematics is the supreme nostalgia of our time.
>
>


-- 
Eric Pyle
Dallas, TX
SIL - Language Software Developer
Skype: eric.d.pyle
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