Re: watch(8) stuck in devdrn

On Fri, Jun 01, 2007 at 01:01:08PM +0800, Tai-hwa Liang wrote:
>  On Fri, 1 Jun 2007, Jiawei Ye wrote:
> > On 6/1/07, Hidetoshi Shimokawa <simokawa_at_freebsd.org> wrote:
> >> The problem doesn't seem specific to tty sub system.
> >> I have similar problem with scsi_target.
> >> On 6/1/07, Robert Watson <rwatson_at_freebsd.org> wrote:
> >> >
> >> > On Thu, 31 May 2007, Giorgos Keramidas wrote:
> >> >
> >> > > On 2007-05-31 18:38, Robert Watson <rwatson_at_freebsd.org> wrote:
> >> > >> I was using watch(8) this afternoon, and on trying to quit, ran into 
> >> this:
> >> > >>
> >> > >>   peppercorn:~> ps axl | grep watch
> >> > >>     0 14200 14194   0  -8  0  3416  1056 devdrn D     p2-   0:00.01 
> >> watch -W tt
> >> > >>
> >> > >> It was running on a pty, but the target tty was ttyv1.
> >> > >
> >> > > If you have kern.pts.enable=1 you may have to use:
> >> > > http://hg.hellug.gr/freebsd/src-keramida/file/944ac3982de1/pty-devdrn
> >> > >
> >> > > Without this patch and kern.pts.enable=1 all ptys seem to get stuck in
> >> > > devdrn on process exit.  AFAIK, Kostik Belousov and Tor Egge know this 
> >> and
> >> > > are already working on a fix:
> >> >
> >> > I'm not using pts.enable on this box.
> >> >
> > mount_smbfs has been having this problem for quite a while too.
> 
>    By any chance you can give following patches a try?
> 
>  	http://people.freebsd.org/~kib/misc/destroy_dev_sched.6.patch
>  	http://people.freebsd.org/~avatar/destroy_dev_sched_addon.2.patch
> 
>  -- 
>  Thanks,
> 
>  Tai-hwa Liang

Fixes mount_smbfs for me. Thank you.


Yuri