Commit 4e0bd469 authored by Eli Zaretskii's avatar Eli Zaretskii
Browse files

Document problems with `df' slowing down Dired.

parent 0df7a0b6
......@@ -494,6 +494,10 @@ src/s/hpux10.h.
* Crashes when displaying GIF images in Emacs built with version
libungif-4.1.0 are resolved by using version libungif-4.1.0b1.
Beginning with version 21.3, Emacs refuses to link against libungif
whose version is 4.1.0 or older (the `configure' script behaves as if
libungif were not available at all).
* Font Lock displays portions of the buffer in incorrect faces.
By far the most frequent cause of this is a parenthesis `(' or a brace
......@@ -553,6 +557,23 @@ port or in the Cygwin library which apparently make Bash ignore the
keyboard interrupt event sent by Emacs to Bash. (Older Cygwin ports
of Bash, up to b20.1, did receive SIGINT from Emacs.)
* Dired is very slow.
This could happen if invocation of the `df' program takes a long
time. Possible reasons for this include:
- ClearCase mounted filesystems (VOBs) that sometimes make `df'
response time extremely slow (dozens of seconds);
- slow automounters on some old versions of Unix;
- slow operation of some versions of `df'.
To work around the problem, you could either (a) set the variable
`directory-free-space-program' to nil, and thus prevent Emacs from
invoking `df'; (b) use `df' from the GNU Fileutils package; or
(c) use CVS, which is Free Software, instead of ClearCase.
* Accessing remote files with ange-ftp hangs the MS-Windows version of Emacs.
If the FTP client is the Cygwin port of GNU `ftp', this appears to be
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