[Debian-med-packaging] Bug#972266: seqtools: flaky armhf autopkgtest on ci.debian.net: Error: signal 11:

[Paul Gevers]

Source: seqtools
Version: 4.44.1+dfsg-5
Severity: serious
Tags: sid bullseye
X-Debbugs-CC: debian-ci at lists.debian.org
User: debian-ci at lists.debian.org
Usertags: flaky

Dear maintainer(s),

The autopkgtest of seqtools turned up a couple of times on our list of
regressions. I looked into the history of your autopkgtest and it fails
regularly on armhf [1].

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.

I copied the output at the bottom of this report. It seems the exact
error (at least the message) changed between the early failures and
latter failures.

Please do get in touch if we need to dive into this together.

Paul

[1]
https://ci.debian.net/user/britney/jobs?package=seqtools&trigger=migration-reference%2F0&suite%5B%5D=unstable&suite%5B%5D=testing&arch%5B%5D=armhf

https://ci.debian.net/data/autopkgtest/testing/armhf/s/seqtools/7473607/log.gz

==============================================================
Test 4

Detected sequence types: DNA vs. Protein
Karlin/Altschul statistics for these sequences and score matrix:
   K      = 0.128
   Lambda = 0.299
   => Expected MSP score in a 100x100 matrix = 23.934
   Expected residue score in MSP = 1.362
   => Expected MSP length = 18
Karlin/Altschul statistics for these sequences and score matrix:
   K      = 0.131
   Lambda = 0.306
   => Expected MSP score in a 100x100 matrix = 23.493
   Expected residue score in MSP = 1.363
   => Expected MSP length = 17
Karlin/Altschul statistics for these sequences and score matrix:
   K      = 0.129
   Lambda = 0.300
   => Expected MSP score in a 100x100 matrix = 23.861
   Expected residue score in MSP = 1.388
   => Expected MSP length = 17
4700 vs. 570 residues => 8.04 million dots.
Exporting graphical image to 'test4'.
Error: signal 11:
Cannot print backtrace

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