kern/161424: [nullfs] __getcwd() calls fail when used on nullfs mount

[Berend de Boer]

The following reply was made to PR kern/161424; it has been noted by GNATS.

From: Berend de Boer <berend at pobox.com>
To: bug-followup at FreeBSD.org, v.haisman at sh.cvut.cz
Cc:  
Subject: Re: kern/161424: [nullfs] __getcwd() calls fail when used on nullfs
 mount
Date: Tue, 03 Sep 2013 15:53:06 +1200

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 I have exactly the same problem in FreeBSD 9.1-RELEASE (almost, it runs
 on AWS so some minor patches).
 
 I have an ZFS pool, and nullfs mounted it. I wrote a simple C program
 which exhibits the problem:
 
 #include <stdio.h>
 #include <errno.h>
 #include <unistd.h>
 
 int main () {
 	void *r;
 	char c[1024];
 	r =3D getcwd(c, 1024);
 	printf ("r =3D %p, errno =3D %i\n", r, errno);
 	printf ("dir =3D %s\n", c);
 
 }
 
 
 Result:
 
 r =3D 0x0, errno =3D 13
 dir =3D
 
 Very annoying, as I have my home directories on /u1/home and remount
 them on /home to avoid having to rename a bunch of stuff.
 
 All the best,
 
 Berend.
 
 
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