Re: emacs & MAXPATHLEN

[Jan D.]

> > You can easily create a deeply nested directory whose absolute  
> > file name
> > is longer than MAXPATHLEN.  The MAXPATHLEN (a.k.a PATH_MAX)  
> > parameter only
> > limits the length of the file name that can be passed to system  
> > calls, but
> > has no connection to maximum length of an (absoulte) file name in  
> > a system
> > (you can create virtually infinite long file names on Linux, for  
> > example).
>
> But in this case, the file name we are talking about was _produced_ by
> a function, i.e. by some system call.  I don't think such a file name
> can exceed the syscall limits, can it?

Well, if you have a directory on one filesystem with MAXPATHLEN and  
then mount another filesystem under that directory, that would make  
all paths in the mounted file system exceed MAXPATHLEN.  In theory at  
least, I haven't tried it.

    Jan D.