[tor-bugs] #12391 [Tor bundles/installation]: Building mingw-w64 is failing intermittently

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#12391: Building mingw-w64 is failing intermittently
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     Reporter:  gk                   |      Owner:  erinn
         Type:  defect               |     Status:  closed
     Priority:  normal               |  Milestone:
    Component:  Tor                  |    Version:
  bundles/installation               |   Keywords:  gitian,
   Resolution:  fixed                |  TorBrowserTeam201407
Actual Points:                       |  Parent ID:
       Points:                       |
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Comment (by dcf):

 Replying to [comment:18 mcs]:
 > Replying to [comment:16 dcf]:
 > > I haven't seen this error through many builds that included golang.
 However I have only tried building on Ubuntu 12.04.
 > >
 > > I found some references to the "bits/predefs.h" error:
 > >  *
 http://blog.riff.org/2014_06_06_what_to_do_when_go_will_not_run_nor_install_from_source
 > >  * https://ubuntuforums.org/showthread.php?t=1877944
 > >  * https://lists.debian.org/debian-glibc/2013/08/msg00030.html
 > >  * https://github.com/gogits/gogs/issues/93
 >
 > Thanks for the info.  But it does not make sense to me that the build
 would succeed the second time (after I restarted it).

 michael's notes in
 [[doc/TorBrowser/BuildingWithGitian#AssemblyErrorsinMismatchedArchitectureCode]]
 link the `bits/predefs.h` error to {{{x86cpuid.s Err: invalid instruction
 suffix for `push'}}} in openssl. I have definitely seen the "invalid
 instruction suffix" error before, when kvm was running for the wrong
 architecture. Killing the kvm process and restarting the build has worked
 to resolve that problem. It's possible that you saw the error first in
 golang and not in openssl, if you were using an already built gitian-utils
 step.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12391#comment:21>
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