Re: nfs mount causes panic when server disappears

[Greg Oster <oster%netbsd.org@localhost>]

On Sat, 22 Nov 2014 05:01:39 +0100
Thomas Klausner <wiz%NetBSD.org@localhost> wrote:

> Hi!
> 
> I'm nfs mounting some file systems from a Synology NAS on
> NetBSD-7.99.1/amd64 from Oct 20.
> 
> The fstab entries look like this:
> 
> 192.168.1.2:/volume1/music      /disk/music     nfs
> intr,nodev,nosuid,rw,soft,tcp
> 
> I have had it happen at least two times already that I rebooted the
> NAS (for updates) and tried accessing the file system later, just to
> get a kernel panic.

I've seen this under 6.1.X as well, and possibly earlier (6.0?).
Unfortunately, I don't have any kernel dumps or even traces to
provide :( 

In my case I'm using amd, with lines like:

u2  type:=nfs;rhost:=somehost;rfs:=/u2

in /etc/amd/map and no special options in /etc/amd.conf .

Later...

Greg Oster