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bug#24074: bug#24094: 25.1.50; revert-buffer error in CC mode
From: |
Óscar Fuentes |
Subject: |
bug#24074: bug#24094: 25.1.50; revert-buffer error in CC mode |
Date: |
Fri, 29 Jul 2016 20:43:03 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
Richard Copley <rcopley@gmail.com> writes:
> It's hard to describe precisely (especially as I don't have a
> corrupted buffer here and now), but being guided by your question,
> we're talking about one or two larger chunks and not at the end of the
> buffer but in the "middle".
Yes, sometimes the missing chunk(s) are in the middle of the file. AFAIR
they are always quite large. I can't confirm the case of more than one
chunk, though.
Appreciating the damage is complicated by the fact that it not evident
what's missing at first sight: in the case I describe on my previous
email, when the error happened and swtiched to the affected buffer it
only displayed one line (the first one); then, pressed cursor-down and
the other eight lines appeared from nowhere.
> My impression FWIW is that it is *as if* Emacs has done
> "diff-buffer-with-file" and is attempting to apply the resulting patch
> to the buffer (perhaps with the laudable intention of saving space in
> the undo buffer), and has failed after a deletion and before an
> insertion. But that is uninformed speculation.
I suspected some undo-related problem when I experienced the problem
some weeks ago. Then, disabled undo before the revert on my Magit code:
- (revert-buffer t t)
+ (progn
+ (setq buffer-undo-list t)
+ (revert-buffer t t)
to no avail. It looks more like a cache issue to me now: c-mode is using
some stale info computed before the revert.
- bug#24094: 25.1.50; revert-buffer error in CC mode, Richard Copley, 2016/07/28
- Message not available
- bug#24094: 25.1.50; revert-buffer error in CC mode, Alan Mackenzie, 2016/07/29
- bug#24074: bug#24094: 25.1.50; revert-buffer error in CC mode, Óscar Fuentes, 2016/07/29
- bug#24074: bug#24094: 25.1.50; revert-buffer error in CC mode, Richard Copley, 2016/07/29
- bug#24094: 25.1.50; revert-buffer error in CC mode, Óscar Fuentes, 2016/07/29
- bug#24094: 25.1.50; revert-buffer error in CC mode, Alan Mackenzie, 2016/07/29
- bug#24094: 25.1.50; revert-buffer error in CC mode, Richard Copley, 2016/07/29
- bug#24074: bug#24094: 25.1.50; revert-buffer error in CC mode, Óscar Fuentes, 2016/07/29