NetBSD Problem Report #39385
From christos@quasar.astron.com Wed Aug 20 09:36:23 2008
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Date: Wed, 20 Aug 2008 08:19:02 +0000 (UTC)
From: christos@zoulas.com
Reply-To: christos@zoulas.com
To: gnats-bugs@gnats.NetBSD.org
Subject: unmount_ptyfs vrele deadlock.
X-Send-Pr-Version: 3.95
>Number: 39385
>Category: kern
>Synopsis: unmounting ptyfs with busy ptys causes deadlock in vrele
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: kern-bug-people
>State: feedback
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Aug 20 09:40:00 +0000 2008
>Closed-Date:
>Last-Modified: Thu May 25 04:01:43 +0000 2017
>Originator: Christos Zoulas
>Release: NetBSD 4.99.71
>Organization:
Disorganized Anonymous
>Environment:
System: NetBSD quasar.astron.com 4.99.71 NetBSD 4.99.71 (QUASAR) #53: Thu Jul 31 11:31:34 EDT 2008 christos@quasar.astron.com:/usr/src/sys/arch/amd64/compile/QUASAR amd64
Architecture: x86_64
Machine: amd64
>Description:
running reboot from a ptyfs pty causes a deadlock in vrelel()?
>How-To-Repeat:
start x and a couple of xterms. run reboot on one of them.
>Fix:
unknown.
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Thu, 03 Jan 2013 22:17:56 +0000
State-Changed-Why:
Have you seen this recently? I regularly reboot from xterms and I've been
using ptys for some years now, and I haven't seen such a problem.
From: David Holland <dholland-bugs@netbsd.org>
To: gnats-bugs@netbsd.org
Cc:
Subject: Re: kern/39385 (unmounting ptyfs with busy ptys causes deadlock in
vrele)
Date: Thu, 3 Jan 2013 22:18:33 +0000
On Thu, Jan 03, 2013 at 10:17:57PM +0000, dholland@NetBSD.org wrote:
> State-Changed-From-To: open->feedback
> State-Changed-By: dholland@NetBSD.org
> State-Changed-When: Thu, 03 Jan 2013 22:17:56 +0000
> State-Changed-Why:
> Have you seen this recently? I regularly reboot from xterms and I've been
> using ptys for some years now, and I haven't seen such a problem.
^f
--
David A. Holland
dholland@netbsd.org
From: christos@zoulas.com (Christos Zoulas)
To: gnats-bugs@NetBSD.org, kern-bug-people@netbsd.org,
netbsd-bugs@netbsd.org, gnats-admin@netbsd.org, dholland@NetBSD.org
Cc:
Subject: Re: kern/39385 (unmounting ptyfs with busy ptys causes deadlock in vrele)
Date: Thu, 3 Jan 2013 18:24:28 -0500
On Jan 3, 10:17pm, dholland@NetBSD.org (dholland@NetBSD.org) wrote:
-- Subject: Re: kern/39385 (unmounting ptyfs with busy ptys causes deadlock i
| Synopsis: unmounting ptyfs with busy ptys causes deadlock in vrele
|
| State-Changed-From-To: open->feedback
| State-Changed-By: dholland@NetBSD.org
| State-Changed-When: Thu, 03 Jan 2013 22:17:56 +0000
| State-Changed-Why:
| Have you seen this recently? I regularly reboot from xterms and I've been
| using ptys for some years now, and I haven't seen such a problem.
You probably don't have LOCKDEBUG defined.
christos
State-Changed-From-To: feedback->open
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Thu, 25 May 2017 04:01:19 +0000
State-Changed-Why:
this shouldn't have been in feedback
State-Changed-From-To: open->feedback
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Thu, 25 May 2017 04:01:43 +0000
State-Changed-Why:
but let's try again: is this still current? after all the vnode cache
changes lately I'd expect not...
>Unformatted:
(Contact us)
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