[Pkg-pascal-devel] Bug#956956: Bug#956956: lazarus: flaky autopkgtest on arm64: EAccessViolation, EInOutError

[peter green]

The backport of arm64 support to FPC 3.0.x has been found to be somewhat shaky in the past.

Given that fpc 3.2.x has now reached the release-candidate stage and I would hope it will be available in time for the bullseye freeze I would suggest we mark this is flaky for the time being and than take another look when fpc 3.2 is in Debian.

On 17/04/2020 09:31, Simon McVittie wrote:
> Source: lazarus
> Version: 2.0.6+dfsg-3
> Severity: serious
> Tags: sid bullseye
> X-Debbugs-CC: debian-ci at lists.debian.org
> User: debian-ci at lists.debian.org
> Usertags: flaky
>
> The lazarus autopkgtest seems to pass reliably on amd64, but fails with an
> access violation (NULL pointer dereference?) or an "Invalid file handle"
> error about half the time on arm64.
>
> Because the unstable-to-testing migration software now blocks on
> regressions in testing, flaky tests, i.e. tests that flip between
> passing and failing without changes to the list of installed packages,
> are causing people unrelated to your package to spend time on these
> tests. Please either fix the test to be more robust, or or use the
> "flaky" restriction for the offending test until a solution has been found.
>
> Because this test seems to be reliable on amd64, another option might be
> to mark the test with the "skippable" restriction, and make it exit 77
> if there's a crash on arm64 (but I'm not sure how that interacts with
> detecting test failures via output on stderr).
>
> https://ci.debian.net/data/autopkgtest/testing/arm64/l/lazarus/5007737/log.gz
> is a typical example, which shows both failure modes (full log attached).
> The stderr is:
>
> autopkgtest [03:54:00]: test build-lpk-lpi:  - - - - - - - - - - stderr - - - - - - - - - -
> An unhandled exception occurred at $0000AAAAE9A147A0:
> EInOutError: Invalid file handle
>    $0000AAAAE9A147A0
>    $0000AAAAE9B17D8C
>    $0000AAAAE9A0B658
>    $0000AAAAE9A6E714
>    $0000AAAAE9B15E70
>    $0000AAAAEA03E464
>    $0000AAAAE9B247F4
>    $0000AAAAE9A0B658
>    $0000AAAAE9B16094
>    $0000AAAAE9B163A4
>    $0000AAAAE9B82690
>    $0000AAAAE9B825A8
>    $0000AAAAE9A0B658
>    $0000AAAAE9C68A48
>    $0000AAAAE9A2F454
>    $0000AAAAE9A2F3E0
>    $0000AAAAE9A2F008
>
> An unhandled exception occurred at $0000000000000000:
> EAccessViolation: Access violation
>    $0000000000000000
>
> An unhandled exception occurred at $0000000000000000:
> EAccessViolation: Access violation
>    $0000000000000000
>
> Some other recent test failures:
> https://ci.debian.net/data/autopkgtest/testing/arm64/l/lazarus/4879692/log.gz
> https://ci.debian.net/data/autopkgtest/testing/arm64/l/lazarus/4630413/log.gz
> https://ci.debian.net/data/autopkgtest/testing/arm64/l/lazarus/4381462/log.gz
>
> Thanks,
>      smcv
>
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