Package: binfmt-support
Version: 2.1.6-1
Severity: minor

Dear Maintainer,

in some cases update-binfmt mounts /proc/sys/fs/binfmt_misc but then it
does not unmount it.

This can causes problems if that happened in a chroot environment
because it leaves /proc busy and so a cleanup task run when exiting the
chroot can fail.

For instance we noticed this behavior with piuparts, see 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=704037

In that bug report there are also instructions to reproduce the issue.

Piuparts is adding a workaround for the problem, but it would be great
if this could be solved properly in binfmt-support.

Thanks,
   Antonio

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (900, 'unstable'), (500, 'unstable-debug')
Architecture: amd64 (x86_64)

Kernel: Linux 4.8.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages binfmt-support depends on:
ii  init-system-helpers  1.46
ii  libc6                2.24-8
ii  libpipeline1         1.4.1-2
ii  lsb-base             9.20161125

binfmt-support recommends no packages.

binfmt-support suggests no packages.

-- no debconf information
-- 
Antonio Ospite
https://ao2.it
https://twitter.com/ao2it

A: Because it messes up the order in which people normally read text.
   See http://en.wikipedia.org/wiki/Posting_style
Q: Why is top-posting such a bad thing?

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