[Bug 2080004] Re: Shotwell bug - Out of memory #5123

[Sebastien Bacher]

I've added the launchpad bug reference to the changelog and uploaded to
oracular

** Changed in: shotwell (Ubuntu)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/2080004

Title:
  Shotwell bug - Out of memory #5123

Status in Shotwell:
  Fix Released
Status in shotwell package in Ubuntu:
  Fix Committed
Status in shotwell source package in Noble:
  New

Bug description:
  Impact
  ------

  A memory leak that will cause Shotwell process to increasingly eat
  memory constantly during a slideshow.

  Test case
  ---------

  *Start Shotwell and import a folder with about 10 photos; End
  Shotwell.

  *Save this script and execute it:

  --->
  #!/bin/sh
  shotwell &
  pid=$!
  statm=/proc/$pid/statm
  time=0
  inc=1
  version=$(dpkg-query -f '${Version}' -W shotwell)

  while test -e "$statm"; do
      #https://www.kernel.org/doc/html/latest/filesystems/proc.html
      stack=$(cut -f6 -d' ' "$statm")
      printf "%s %s\n" "$time" "$stack"
      sleep "$inc"
      time=$((time+inc))
  done > "$version.dat"
  <---

  *Press F5 to start slideshow and keep pressing right arrow to cycle
  through the photo set about 3 times.

  *End Shotwell.

  Expected: The memory logged in the *.dat file stops increasing instead
  of steadily and indefinidetely increasing.

  You can use "xmgrace -legend load *.dat" to get a plot of the behavior
  before and after the fix for easier visualization (see attached
  shotwell-stat.png).

  Regression potential
  --------------------

  The changes are on a function that causes the Pixbuf cache to be
  regenerated and the UI updated, so it should suffice to observe that
  images are loaded alright in the slide show.

  Further information
  -------------------

  Bug upstream: https://gitlab.gnome.org/GNOME/shotwell/-/issues/5123

  Fix upstream:
  https://gitlab.gnome.org/GNOME/shotwell/-/commit/fa6884f73af83ccbc72b8fe0f7bc63a00630ee0b

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