Subject: Re: locking problem on amd64 (w/ lfs)
To: Sarton O'Brien <firstname.lastname@example.org>
From: Antti Kantee <email@example.com>
Date: 12/03/2007 13:15:02
On Mon Dec 03 2007 at 09:53:26 +1100, Sarton O'Brien wrote:
> Hi Andrew,
> Andrew Doran wrote:
> >This is a bug in LFS. It spends so long traversing mnt_vnodelist and
> >all the vnodes that the other CPU gives up trying to acquire kernel_lock.
> >Workaround: don't use LFS, it will always give you a headache in the end.
> Should this be considered a rule until further LFS improvements are made
> or is this unlikely to change?
> I'm starting to wonder, with all the LFS tweaking required for
> performance and then the underlying issues with regards to the above and
> trigerable panics using lfs -> smb/cifs, is it worth using LFS at all?
> I'm not sure if I'm seeing the benefits.
I use it for /obj all the time, no tweaking, works great.
Antti Kantee <firstname.lastname@example.org> Of course he runs NetBSD
"la qualité la plus indispensable du cuisinier est l'exactitude"