NetBSD Problem Report #47012

From rhialto@falu.nl  Thu Sep 27 19:00:38 2012
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Date: Thu, 27 Sep 2012 21:00:34 +0200 (CEST)
From: rhialto@falu.nl
Reply-To: rhialto@falu.nl
To: gnats-bugs@gnats.NetBSD.org
Cc: rhialto@falu.nl
Subject: "shutdown now" from multiuser causes kernel panic (-current)
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>Number:         47012
>Category:       kern
>Synopsis:       "shutdown now" from multiuser causes kernel panic (-current)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Sep 27 19:05:00 +0000 2012
>Closed-Date:    Fri Jan 04 04:51:02 +0000 2013
>Last-Modified:  Fri Jan 04 04:51:02 +0000 2013
>Originator:     Rhialto
>Release:        NetBSD current, cvs update finished Sep 25 00:46 CEST
>Organization:

>Environment:


System: NetBSD radl.falu.nl 5.1 NetBSD 6.99.something GENERIC
Architecture: x86_64
Machine: amd64
>Description:
	I used a self-compiled GENERIC amd64 kernel from a "cvs update"
	as of Sep 25 00:46 CEST.
	The userland was from amd64/5.1.
>How-To-Repeat:
	From multi-user, issue the command "shutdown now".
	After most of the procedure has completed, the here is an
	assertion failure followed by a crash dump.
	(I didn't recover the dump).

	The first time it happened I was in X when I issued the shutdown
	command. I could repeat it even when first shutting down X
	(/etc/rc.d/xdm stop), then doing the shutdown from a text console.

	Thu Sep 27 20:44:51 CEST 2012

	Done running shutdown hooks.
	panic: kernel diagnostic assertion "lwpcnt >= 0" failed: file
	"/mnt/vol1/rhialto/cvs/src/sys/kern/kern_uidinfo.c", line 217
	cpu0: Begin traceback...
	kern_assert() at netbsd:kern_assert+0x48
	chglwpcnt() at netbsd:chglwpcnt+0x56
	lwp_free() at netbsd:lwp_free+0x66
	lwp_wait1() at netbsd:lwp_wait1+0x240
	exit_lwps() at netbsd:exit_lwps+0x108
	exit1() at netbsd:exit1+0x6a
	sigexit() at netbsd:sigexit+0x14b
	postsig() at netbsd:postsig+0x15d
	lwp_userret() at netbsd:lwp_userret+0x19b
	syscall() at netbsd:syscall+0x157
	--- syscall (number 0) ---
	7f7ff7934a4a:
	cpu0: End traceback...

	dumping to dev 0,1 (offset=199775, size=1023726):
	dump 3998 3997 3996 3995 3994 3993 3992 3991 3990 3989 ...


	When repeating it just now, it is "cpu1" and the dump freezes at
	3984. That may be a coincidence.

>Fix:
	Unknown so far.

-Olaf.
-- 
___ Olaf 'Rhialto' Seibert  -- There's no point being grown-up if you 
\X/ rhialto/at/xs4all.nl    -- can't be childish sometimes. -The 4th Doctor

>Release-Note:

>Audit-Trail:
From: Ryo ONODERA <ryo_on@yk.rim.or.jp>
To: gnats-bugs@NetBSD.org, rhialto@falu.nl
Cc: 
Subject: Re: kern/47012: "shutdown now" from multiuser causes kernel panic
 (-current)
Date: Fri, 28 Sep 2012 04:10:08 +0900 (JST)

 Duplicate of PR kern/46606?
 Have you ran pkgsrc/sysutils/hal?

 http://gnats.netbsd.org/46606


From: Rhialto <rhialto@falu.nl>
To: Ryo ONODERA <ryo_on@yk.rim.or.jp>
Cc: gnats-bugs@NetBSD.org, rhialto@falu.nl
Subject: Re: kern/47012: "shutdown now" from multiuser causes kernel panic
 (-current)
Date: Thu, 27 Sep 2012 21:18:50 +0200

 On Fri 28 Sep 2012 at 04:10:08 +0900, Ryo ONODERA wrote:
 > Duplicate of PR kern/46606?
 > Have you ran pkgsrc/sysutils/hal?
 > 
 > http://gnats.netbsd.org/46606

 You are correct! I have "hal=YES" in my /etc/rc.conf file.
 I tried with "hal=NO", and the problem did not occur.
 Thank you!

 -Olaf.
 -- 
 ___ Olaf 'Rhialto' Seibert  -- There's no point being grown-up if you 
 \X/ rhialto/at/xs4all.nl    -- can't be childish sometimes. -The 4th Doctor

State-Changed-From-To: open->closed
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Fri, 04 Jan 2013 04:51:02 +0000
State-Changed-Why:
Duplicate of 46606.


>Unformatted:

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