bug#51894: 27.2; GDB Gud support on Cygwin has trouble accessing shared files on Windows network drives.

[Eli Zaretskii]

> From: Guy Offer <guyof@checkpoint.com>
> CC: "51894@debbugs.gnu.org" <51894@debbugs.gnu.org>
> Date: Wed, 17 Nov 2021 14:00:39 +0000
> 
> This GDB was configured as follows:
>    configure --host=x86_64-pc-cygwin --target=x86_64-redhat-linux-gnu

Does this mean this is a GDB that targets Red Hat GNU/Linux and not a
Cygwin-native debugger?

> Regarding Emacs GDB support: Emacs has UI support for GDB (GUD GDB) which can 
> display code source in Emacs buffers. 

Are you using "M-x gdb RET" or "M-x gud-gdb RET"?

Also, is Emacs capable of visiting file specified as
"\cygdrive\f\source\", i.e. does "C-x C-f" work with such names?

And btw, why you mention file names with backslashes? does using
forward slashes, as in "/cygdrive/f/source/", work for you?

If all of the above doesn't help, please show a minimal recipe
starting from "emacs -Q", where the problem happens: maybe we are
missing some important clue.