Date: Fri, 1 Jun 2007 13:01:08 +0800 (CST) From: Tai-hwa Liang <avatar@mmlab.cse.yzu.edu.tw> To: Jiawei Ye <leafy7382@gmail.com> Cc: Giorgos Keramidas <keramida@ceid.upatras.gr>, Robert Watson <rwatson@freebsd.org>, current@freebsd.org, scsi@freebsd.org Subject: Re: watch(8) stuck in devdrn Message-ID: <07060112584613.12429@www.mmlab.cse.yzu.edu.tw> In-Reply-To: <c21e92e20705311847w5c5816bay1469d95964267581@mail.gmail.com> References: <20070531183719.B77697@fledge.watson.org> <20070531180555.GA10910@kobe.laptop> <20070601010212.F77697@fledge.watson.org> <626eb4530705311711h69322a54ga7c49aea3fe4ab27@mail.gmail.com> <c21e92e20705311847w5c5816bay1469d95964267581@mail.gmail.com>
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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
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