7-BETA3 everyday reboot

[Michael Haro]

On 12/10/07, Alexandre Biancalana <biancalana at gmail.com> wrote:
>
> On 12/7/07, Michael Haro <mharo at freebsd.org> wrote:
> >
> >
> > > > I have found that turning off zil and prefetch seem to keep things
> > > > happier on one of the heavily loaded servers that I look after.
> > > > It also appears to prevent a deadlock under very heavy load -
> something
> > > > I've not yet had time to debug.
> > > > Try adding:
> > > >
> > > > vfs.zfs.zil_disable=1
> > > > vfs.zfs.prefetch_disable="1"
> > > >
> > > > to /boot/loader.conf
> > > >
> > > > and let us know if it makes a difference.
> > >
> > > Added now only
> > >
> > > vfs.zfs.prefetch_disable="1"
> > >
> > >
> > > I let you know the result.
> >
> > Is the result promising?
> >
> >
> Yes ! The machine does not reboot anymore !


What combination of settings did you have to do to make it stable?  I tried
setting vfs.zfs.prefetch_disable="1' in loader.conf and my machine still
panics within 20 minutes during (I think) large file transfers.