Bug#608428: [buildd-tools-devel] Bug#608428: Bug#608428: schroot: [kfreebsd-*] cannot handle long (>= 14 chars) chroot names

[Petr Salinger <Petr.Salinger@seznam.cz>]

severity 608428 important
user debian-bsd@lists.debian.org
usertag 608428 + kfreebsd
--

> So, this looks like a bug in the mount/umount utilities and/or the
> kfreebsd mount/nmount/umount system calls.
>
> Possible explanation: there's an 80 char buffer being used which causes
> the truncation.  The syscall manual pages tell us that there's a 1023
> character restriction with 255 chars per path component.  We're nowhere
> near that documented limit, so there's a serious bug somewhere.
>
> I'm not a freebsd user or developer.  I've identified the cause of the
> problem, and it's not in schroot.  This really needs the attention of
> some freebsd people who can fix the length restrictions, I've
> realistically done all I am able.

Many thanks for this.

> I've reassigned this to freebsd-utils, which is the most likely place
> for the bug to be.  I've also put the severity to serious, since this
> is a fundamental and dangerous flaw in a key system component which
> can and is causing breakage.  It would be good if this could be
> fixed for squeeze.

There is a system limit in

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/sys/mount.h

#define MNAMELEN        88              /* size of on/from name bufs */

We cannot do much with this limit :-(

Petr