bug#19607: issue with Emacs 24.4.1 but not with 24.3.1 : changed on disk; really edit the buffer

[Paul Eggert]

Jakob Unterwurzacher wrote:
> The kernel caches FUSE stat() values for 1 second by default, this defeats
> emacs' workaround.
> Passing "-o attr_timeout=0" to encfs disables that cache.

Looking at the fuse man page, it appears that if one uses EncFS atop a network 
file system, the mount should not use the kernel_cache option, and should use 
the auto_cache option or perhaps ac_attr_timeout=0 (the man page is unclear 
about all this, unfortunately).  Perhaps EncFS should use appropriate settings 
for these options by default if it determines that the underlying file system is 
network-based.

Anyway, assuming "-o attr_timeout=0" (or something similar) solves the problem, 
we do have a workaround now.