NetBSD Problem Report #56073

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Date: Wed, 24 Mar 2021 13:28:41 +0000 (UTC)
From: nia@pkgsrc.org
Reply-To: nia@pkgsrc.org
To: gnats-bugs@NetBSD.org
Subject: pad(4) panics in audio(4) in -current
X-Send-Pr-Version: www-1.0

>Number:         56073
>Category:       kern
>Synopsis:       pad(4) panics in audio(4) in -current
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    jdolecek
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 24 13:30:00 +0000 2021
>Closed-Date:    Tue Jun 08 09:10:48 +0000 2021
>Last-Modified:  Tue Jun 08 09:10:48 +0000 2021
>Originator:     nia
>Release:        9.99.81
>Organization:
>Environment:
NetBSD r 9.99.81 NetBSD 9.99.81 (NIAAMD64) #39: Thu Mar 18 14:53:04 CET 2021  nia@r:/home/nia/cvs/src/sys/arch/amd64/compile/obj/NIAAMD64 amd64
>Description:
As well as no longer returning 0's when its respective audio device is inactive, I now see panics with pad(4) in current.

[ 59773.497851] panic: kernel diagnostic assertion "sc->sc_ropens > 0" failed: file "/home/nia/cvs/src/sys/dev/audio/audio.c", line 2622
>How-To-Repeat:
use pad(4).
>Fix:

>Release-Note:

>Audit-Trail:

Responsible-Changed-From-To: kern-bug-people->jdolecek
Responsible-Changed-By: jdolecek@NetBSD.org
Responsible-Changed-When: Sun, 06 Jun 2021 17:00:18 +0000
Responsible-Changed-Why:
I'm looking into this one.


State-Changed-From-To: open->feedback
State-Changed-By: jdolecek@NetBSD.org
State-Changed-When: Sun, 06 Jun 2021 17:00:18 +0000
State-Changed-Why:

I can't reproduce the problem on up-to-date -current. Can you confirm
whether it happens still for you, and how to trigger it?
I have used kernel with DIAGNOSTIC+DEBUG+LOCKDEBUG.


From: Andrius V <vezhlys@gmail.com>
To: gnats-bugs@netbsd.org
Cc: jdolecek@netbsd.org, kern-bug-people@netbsd.org, netbsd-bugs@netbsd.org, 
	gnats-admin@netbsd.org, nia@pkgsrc.org
Subject: Re: kern/56073 (pad(4) panics in audio(4) in -current)
Date: Mon, 7 Jun 2021 01:51:39 +0300

 I guess this issue may have been fixed or at least affected by recent
 changes to audio.c for kern/56164 by Taylor R Campbell (Riastradh).
 Not sure if that work is finished and tested though.

 On Sun, Jun 6, 2021 at 8:00 PM <jdolecek@netbsd.org> wrote:
 >
 > Synopsis: pad(4) panics in audio(4) in -current
 >
 > Responsible-Changed-From-To: kern-bug-people->jdolecek
 > Responsible-Changed-By: jdolecek@NetBSD.org
 > Responsible-Changed-When: Sun, 06 Jun 2021 17:00:18 +0000
 > Responsible-Changed-Why:
 > I'm looking into this one.
 >
 >
 > State-Changed-From-To: open->feedback
 > State-Changed-By: jdolecek@NetBSD.org
 > State-Changed-When: Sun, 06 Jun 2021 17:00:18 +0000
 > State-Changed-Why:
 >
 > I can't reproduce the problem on up-to-date -current. Can you confirm
 > whether it happens still for you, and how to trigger it?
 > I have used kernel with DIAGNOSTIC+DEBUG+LOCKDEBUG.
 >
 >
 >

State-Changed-From-To: feedback->closed
State-Changed-By: nia@NetBSD.org
State-Changed-When: Tue, 08 Jun 2021 09:10:48 +0000
State-Changed-Why:


>Unformatted:

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