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bug#15841: Display bugs with cache-long-lines non-nil

From: Eli Zaretskii
Subject: bug#15841: Display bugs with cache-long-lines non-nil
Date: Sat, 09 Nov 2013 13:18:29 +0200

Redirecting to a new bug report.

> From: Nathan Trapuzzano <address@hidden>
> Date: Fri, 08 Nov 2013 18:11:44 -0500
> Cc: Michael Heerdegen <address@hidden>, address@hidden,
>       address@hidden
> Nathan Trapuzzano <address@hidden> writes:
> > I haven't figured out a consistent way to screw up the motion commands
> > yet.
> Here we go.  Visit the same file and do:
> M-x linum-mode
> C-o
> C-n
> C-e
> Cursor moves almost to end of entire file.

Should be fixed in trunk revision 115050.

However, there are still problems which can be seen with this recipe:

 emacs -Q --eval "(setq-default cache-long-scans nil)"
 C-x C-f src/xdisp.c
 M-: (setq cache-long-scans t) RET
 M-x linum-mode RET

Many line numbers near the end of the buffer are not shown in the

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