Date: Fri, 1 Jun 2007 14:42:21 +0400 From: Yuri Pankov <yuri.pankov@gmail.com> To: Tai-hwa Liang <avatar@mmlab.cse.yzu.edu.tw> Cc: freebsd-current@freebsd.org Subject: Re: watch(8) stuck in devdrn Message-ID: <20070601104221.GA923@darklight.abyss> In-Reply-To: <07060112584613.12429@www.mmlab.cse.yzu.edu.tw> References: <20070531183719.B77697@fledge.watson.org> <20070531180555.GA10910@kobe.laptop> <20070601010212.F77697@fledge.watson.org> <626eb4530705311711h69322a54ga7c49aea3fe4ab27@mail.gmail.com> <c21e92e20705311847w5c5816bay1469d95964267581@mail.gmail.com> <07060112584613.12429@www.mmlab.cse.yzu.edu.tw>
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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@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@freebsd.org> wrote: > >> > > >> > On Thu, 31 May 2007, Giorgos Keramidas wrote: > >> > > >> > > On 2007-05-31 18:38, Robert Watson <rwatson@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
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