pkg-perl-maintainers team mailing list archive

[Allison Randal <allison@xxxxxxxxxxx>]

This is a heisenbug because it's a simple race condition. It's not a
failure in the package build, only in the automated tests. The lines
just before 267 of the test file t/9.t are:

264   $timer_id = Glib::Timeout->add
265     (30_000, # 30 seconds should be more than enough for child exit
266      sub { die "Oops, child watch callback didn't run\n"; });

The test is assuming that 30 seconds are long enough for a child process
to complete, but on certain slower/constrained processors (like a
buildd, or a netbook) that estimate is too short, so the test fails. On
my Precise netbook (Asus EeePC N550 @ 1.50GHz × 4) the test consistently
fails, but if I bump that timeout up to 60 seconds it consistently
passes. That timing is not exact, and an ideal fix would be event-based
rather than wallclock seconds, but doubling the time allowed is
generous. Alternatively, you can ignore the FTBFS, since it's only a
sign of a slow buildd, not of any more serious problem.

I've attached the patch file I added in my bzr checkout of the package
for a longer timeout.

** Attachment added: "lengthen the timeout, so the test passes for slower processors"
   https://bugs.launchpad.net/ubuntu/precise/+source/libglib-perl/+bug/935525/+attachment/2913794/+files/fix-timeout

-- 
You received this bug notification because you are a member of Debian
Perl Group, which is subscribed to libglib-perl in Ubuntu.
https://bugs.launchpad.net/bugs/935525

Title:
  libglib-perl version 2:1.241-1 FTBFS on i386 in precise

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/libglib-perl/+bug/935525/+subscriptions