Subject: bug#33561: when opening a msg with a 4 MB attachment emacs (master) consumes 6.4 GB of RAM

From: Eli Zaretskii <[email-masked]>
Date: Sat, 01 Dec 2018 16:51:35 +0200

> From: Uwe Brauer <[email-masked]>
> Cc: Uwe Brauer <[email-masked]>, [email-masked]
> Date: Sat, 01 Dec 2018 14:55:12 +0100
> 
>    > What kind of content was in the attachment?  I don't see how we could
>    > look into this issue without knowing at least that much.
> 
> A djvu file the attachment looks like this

Then I think it's a problem with ImageMagick.  Emacs cannot view these
files except via ImageMagick, AFAIK.  Perhaps try to upgrade your
ImageMagick version.