Emacs 21.1.1: Crash in combination with DOS RCS

[juergen . kuersch]

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Please write in English, because the Emacs maintainers do not have
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In GNU Emacs 21.1.1 (i386-msvc-nt4.0.1381)
 of 2001-10-22 on buffy
configured using `configure --with-msvc (12.00)'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: DEU
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

We use a DOS version of RCS on our Windows NT systems (it reports
"RCS version 5.7" when called with rcs -V). When I try to open a file
under RCS control, Emacs (pre-compiled binaries) crashes, and NT
issues a message which is equivalent to (translated from German):
'Statement in "0x01003960" points to memory in "0x0e59fdce". The
operation "read" could not be performed in the memory. Click OK
to stop the application.'

Sorry I don't have an English NT at hand.

When I configure cv-handled-backends so that it does not contain RCS,
no crash occurs, but obviously, RCS support is gone then.

Note that Emacs Windows 20.7.1 does not crash.


Recent input:
M-x r e p o r t <tab> <return>

Recent messages:
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