Re: kern/37425: fss_snapshot_mount panic during fsck

[Juergen Hannken-Illjes <hannken%eis.cs.tu-bs.de@localhost>]

The following reply was made to PR kern/37425; it has been noted by GNATS.

From: Juergen Hannken-Illjes <hannken%eis.cs.tu-bs.de@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/37425: fss_snapshot_mount panic during fsck
Date: Tue, 25 Nov 2008 15:15:53 +0100

 On Mon, Nov 24, 2008 at 06:05:23PM -0800, Scott Ellis wrote:
 [snip]
 > Script used to test is attached (yes, it's a hack, but it was quick to 
 > write!) as pffstest.pl.  It requires the directory structure of 
 > /.snapshot/.store to be created, and vnd 11-14 to be available.
 
 How should the /.snapshot/.store hierarchy look like?
 
 >      # Make a new store file
 >      exec(`fssconfig -c fss0 / $newfile`);
 >      exec(`fssconfig -u fss0`);
 > 
 >      # Attach it to the vnode
 >      exec(`vnconfig -r $vnd{""} $newfile`);
 
 If I get this right you are trying to create a vnd device from the
 snapshot backup.  If this succeeds, there is a bug in the vnd driver.
 Snapshot backups cannot be opened, read or written -- they can only
 be accessed through /dev/{r,}fss{n}.
 
 -- 
 Juergen Hannken-Illjes - hannken%eis.cs.tu-bs.de@localhost - TU Braunschweig 
(Germany)