Re: Warning (undo): Buffer `*Buffer List*'

[Tassilo Horn <tsdh@gnu.org>]

Tamas K Papp <tkpapp@gmail.com> writes:

Hi Tamas,

>>> Warning (undo): Buffer `*Buffer List*' undo info was 12075571 bytes
>>> long.  The undo info was discarded because it exceeded
>>> `undo-outer-limit'.
>>
>> I wonder whether undo data in *Buffer List* is useful at all - I
>> don't think so.  ibuffer does (buffer-disable-undo) for its buffer
>> list, and I think the *Buffer List* should disable recording undo
>> data as well.
>>
>> With other words, I think this is just a bug, since *Buffer List* is
>> a read-only buffer.  Can you please submit a bug report (M-x
>> report-emacs-bug)?
>
> Thanks Michael, I have reported it as a bug.  In the meantime, how can
> I work around this?  I would need to call (buffer-disable-undo) each
> time *Buffer List* is created, but I could not find a hook for this.

I think this should do the trick:

  (add-hook 'Buffer-menu-mode-hook 'buffer-disable-undo)

Bye,
Tassilo