Bug#918341: transition: jemalloc

[Faidon Liambotis <paravoid@debian.org>]

Package: release.debian.org
Severity: normal
User: release.debian.org@packages.debian.org
Usertags: transition

Release Team,

This has been pending for a long time, and while the pieces have been
mostly there, I've dropped the ball and did not proceed with the
transition earlier. Apologies for this and for the last minute
submission!

So, I'd like to ask for permission to upload jemalloc 5.1.0-2 to sid:

- stretch/buster have 3.6.0-11, a pretty old upstream version, and also
  presenting some long-standing issues like #843926 (hard-coded page
  sizes at build time).

- 5.1.0-1 has been in experimental since May 2018, and has successfully
  been built on all official architectures (and all debian-ports except
  hurd-i386 and riscv64). I have not made an upload to unstable, but can
  do so as soon as you give me the green light.

- This newer version uses a slightly different ABI and thus has a new
  SONAME and binary package, libjemalloc2 (vs. libjemalloc1), so this
  requires a transition. API is (mostly) the same -- the exception being
  what was an experimental API that has been now dropped and replaced by
  a stable one.

- Adam Borowski (Cc'ed), who was interested in this and pinged me about
  it recently, ran a rebuild of all rdepds and encountered and reported
  only one FTBFS among packages in testing, #914814 affecting spades,
  which was using the aforementioned experimental API and -as of a few
  minutes ago- has a patch attached.

- Ubuntu apparently imported 5.1.0-1 to their distribution back in May,
  and shipped their Cosmic stable release with it ([1] says "Copied from
  debian experimental in Primary Archive for Debian GNU/Linux by Steve
  Langasek"), apparently with no ill effects(?)

Let me know if there are any questions and thanks for your work and
consideration!

Ben file:

title = "jemalloc";
is_affected = .depends ~ "libjemalloc1" | .depends ~ "libjemalloc2";
is_good = .depends ~ "libjemalloc2";
is_bad = .depends ~ "libjemalloc1";

Regards,
Faidon

1: https://launchpad.net/ubuntu/+source/jemalloc/+publishinghistory