To report Emacs bugs, use
‘M-x report-emacs-bug’ in Emacs – simple as that. Do not hesitate to report a bug. The Emacs developers will help you determine whether there is really a bug or not.
When you report a bug, start with
‘emacs -q --no-site-file’ (or just
‘emacs -Q’ in recent Emacs versions), so that you do not load your init file or custom file. Then provide a precise recipe for reproducing the behavior you see, step by step. See the Emacs manual, node Bugs (Bugs) for more info. Without a complete recipe of what you did to see the bug behavior, it will be difficult for anyone to help you.
You can find bugs that were known at the time of distribution for your version of Emacs in file
PROBLEMS in directory
etc of your Emacs installation – for example,
Library emacsbug+.el extends standard library
emacsbug.el, which defines command
It provides user option
‘ebp-report-emacs-bug-included-fields’, which you can use to specify the types of information that
‘report-emacs-bug’ includes by default.
And it provides individual commands to insert such info, if you choose not to include some of it by default.