[Bug 1890435] Re: gcc-10 breaks on armhf (flaky): internal compiler error: Segmentation fault

[Christian Ehrhardt ]

On Thu, Dec 10, 2020 at 5:31 PM Dimitri John Ledkov
<1890435 at bugs.launchpad.net> wrote:
>
> "just retry the build" is our solution to this issue.

It is not - in hirsute the builds of the actual package on LP hit 100%
fail-rate.
Unfortunately not in the repro, but due to the above the workaround
currently is to build with gcc-9 on armhf.
But that is not a long term solution.

Therefore also this IMHO can't be won't fix

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https://bugs.launchpad.net/bugs/1890435

Title:
  gcc-10 breaks on armhf (flaky): internal compiler error: Segmentation
  fault

Status in gcc:
  Confirmed
Status in gcc-10 package in Ubuntu:
  New

Bug description:
  Hi,
  this could be the same as bug 1887557 but as I don't have enough data I'm filing it as individual issue for now.

  I have only seen this happening on armhf so far.
  In 2 of 5 groovy builds of qemu 5.0 this week I have hit the issue, but it is flaky.

  Flakyness:
  1. different file
  first occurrence
  /<<PKGBUILDDIR>>/target/s390x/excp_helper.c:544:1: internal compiler error: Segmentation fault
  second occurrence
  /<<PKGBUILDDIR>>/linux-user/syscall.c:12479:1: internal compiler error: Segmentation fault

  Being so unreliable I can't provide mcuh more yet.
  I filed it mostly for awareness and so that I can be dup'ed onto the right but if there is a better one.

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