NetBSD Problem Report #60555

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Date: Fri,  7 Aug 2026 22:48:01 +0000 (UTC)
From: so@neutralite.org
Reply-To: so@neutralite.org
To: gnats-bugs@NetBSD.org
Subject: hdaudio(4) regression: RIRB timeout prevents attachment on Intel 300 Series HDA
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X-From4GNATS: "so@neutralite.org via gnats" <gnats-admin@NetBSD.org>

>Number:         60555
>Category:       kern
>Synopsis:       hdaudio(4) regression: RIRB timeout prevents attachment on Intel 300 Series HDA
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 07 22:50:01 +0000 2026
>Last-Modified:  Sat Aug 29 10:05:01 +0000 2026
>Originator:     Stéphane Ortega
>Release:        NetBSD-current (HEAD), built 2026-08-07
>Organization:
>Environment:
NetBSD phoenix 11.99.7 NetBSD 11.99.7 (GENERIC) #0: Fri Aug  7 00:46:52 CEST 2026 src/netbsd-src/sys/arch/amd64/compile/obj/GENERIC amd64
>Description:
On the same Dell laptop, the internal audio works correctly with NetBSD 11.0 but fails with NetBSD-current (HEAD).

The PCI audio controller is:

Intel 300 Series HD Audio Controller
PCI address: pci0 dev 31 function 3

With NetBSD 11.0, hdaudio attaches successfully:

hdaudio0 at pci0 dev 31 function 3: HD Audio Controller
hdafg0 at hdaudio0: Realtek product 0236
hdafg0:
  DAC00 2ch: Speaker [Built-In]
  DAC01 2ch: HP Out [Jack]
  ADC02 2ch: Mic In [Built-In]
audio0 at hdafg0: playback, capture, full duplex, independent

With NetBSD-current (HEAD), the same hardware fails during hdaudio initialization:

hdaudio0 at pci0 dev 31 function 3: HD Audio Controller
hdaudio0: autoconfiguration error: timeout stopping RIRB
hdaudio0: autoconfiguration error: couldn't reset because RIRB is busy
hdaudio0: autoconfiguration error: device driver failed to attach

As a result, no hdafg0 and no audio device are created.

The hardware, BIOS and codec are unchanged between the two tests. Only the NetBSD version differs.

Hardware:
- Dell Latitude 5400 laptop
- Intel Core i5-8265U CPU
- Intel 300 Series chipset
- Realtek HD Audio codec (product 0236)

This appears to be a regression in the hdaudio(4) driver between NetBSD 11.0 and -current.

The same Dell Latitude 5400 boots NetBSD 11.0 with working audio.
>How-To-Repeat:
1. Build or install NetBSD-current (HEAD) on a Dell Latitude 5400 laptop with:
   - Intel Core i5-8265U CPU
   - Intel 300 Series chipset
   - Realtek HD Audio codec (product 0236)

2. Boot the GENERIC amd64 kernel.

3. Check the kernel messages with dmesg.

The hdaudio driver fails to attach and reports:

hdaudio0: autoconfiguration error: timeout stopping RIRB
hdaudio0: autoconfiguration error: couldn't reset because RIRB is busy
hdaudio0: autoconfiguration error: device driver failed to attach

No audio device is created.

The same hardware boots NetBSD 11.0 with working audio.
>Fix:
Unknown

>Audit-Trail:
From: abs@absd.org
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: kern/60555: hdaudio(4) regression: RIRB timeout prevents attachment on Intel 300 Series HDA
Date: Sun, 09 Aug 2026 09:29:34 +0000

 I'm seeing a possibly related issue on a ThinkPad T14 Gen1

 NetBSD 11.99.7:
 hdaudio0: interrupting at msi4 vec 0
 hdaudio0: HDA ver. 0.0, OSS 0, ISS 0, BSS 0, SDO 1
 hdaudio0: autoconfiguration error: no codecs found
 hdaudio0: autoconfiguration error: device driver failed to attach

 NetBSD 11
 hdaudio0 at pci0 dev 31 function 3: HD Audio Controller
 hdaudio0: interrupting at msi4 vec 0
 hdaudio0: HDA ver. 1.0, OSS 9, ISS 7, BSS 0, SDO 1, 64-bit

From: RVP <rvp@SDF.ORG>
To: gnats-bugs@netbsd.org
Cc: abs@absd.org
Subject: Re: kern/60555: hdaudio(4) regression: RIRB timeout prevents attachment
 on Intel 300 Series HDA
Date: Sun, 9 Aug 2026 09:37:21 +0000 (UTC)

 On Sun, 9 Aug 2026, abs@absd.org via gnats wrote:

 > I'm seeing a possibly related issue on a ThinkPad T14 Gen1
 >
 > NetBSD 11.99.7:
 > hdaudio0: interrupting at msi4 vec 0
 > hdaudio0: HDA ver. 0.0, OSS 0, ISS 0, BSS 0, SDO 1
 > hdaudio0: autoconfiguration error: no codecs found
 > hdaudio0: autoconfiguration error: device driver failed to attach
 >
 > NetBSD 11
 > hdaudio0 at pci0 dev 31 function 3: HD Audio Controller
 > hdaudio0: interrupting at msi4 vec 0
 > hdaudio0: HDA ver. 1.0, OSS 9, ISS 7, BSS 0, SDO 1, 64-bit
 >

 Possibly related to `option PCI_RESOURCE' being turned on in 11.99.7.
 See kern/60463. Try a new kernel without that option.

 -RVP

From: abs@absd.org
To: gnats-bugs@netbsd.org
Cc: kern-bug-people@netbsd.org, gnats-admin@netbsd.org, netbsd-bugs@netbsd.org, so@neutralite.org
Subject: Re: kern/60555: hdaudio(4) regression: RIRB timeout prevents attachment on Intel 300 Series HDA
Date: Sun, 09 Aug 2026 17:16:14 +0000

 On Sunday, 9 August 2026 at 10:40, RVP via gnats <gnats-admin@NetBSD.org> w=
 rote:

 >  Possibly related to `option PCI_RESOURCE' being turned on in 11.99.7.
 >  See kern/60463. Try a new kernel without that option.

 Confirmed - thanks. Will add details to kern/60463

From: =?utf-8?B?U3TDqXBoYW5l?= ORTEGA <so@neutralite.org>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: kern/60555: hdaudio(4) regression: RIRB timeout prevents
 attachment on Intel 300 Series HDA
Date: Sun, 9 Aug 2026 20:21:32 +0200

 Hi RVP,

 I tested this on my system. With PCI_RESOURCE enabled, hdaudio fails to attach.
 After rebuilding the kernel without PCI_RESOURCE, hdaudio attaches correctly
 and sound works again.

 This confirms that the hdaudio problem on my system is related to PCI_RESOURCE.

 Thanks for the suggestion and investigation.

 Best regards,
 SO

 Le Sun, Aug 09, 2026 at 09:40:01AM +0000, RVP via gnats a écrit :
 > The following reply was made to PR kern/60555; it has been noted by GNATS.
 > 
 > From: RVP <rvp@SDF.ORG>
 > To: gnats-bugs@netbsd.org
 > Cc: abs@absd.org
 > Subject: Re: kern/60555: hdaudio(4) regression: RIRB timeout prevents attachment
 >  on Intel 300 Series HDA
 > Date: Sun, 9 Aug 2026 09:37:21 +0000 (UTC)
 > 
 >  On Sun, 9 Aug 2026, abs@absd.org via gnats wrote:
 >  
 >  > I'm seeing a possibly related issue on a ThinkPad T14 Gen1
 >  >
 >  > NetBSD 11.99.7:
 >  > hdaudio0: interrupting at msi4 vec 0
 >  > hdaudio0: HDA ver. 0.0, OSS 0, ISS 0, BSS 0, SDO 1
 >  > hdaudio0: autoconfiguration error: no codecs found
 >  > hdaudio0: autoconfiguration error: device driver failed to attach
 >  >
 >  > NetBSD 11
 >  > hdaudio0 at pci0 dev 31 function 3: HD Audio Controller
 >  > hdaudio0: interrupting at msi4 vec 0
 >  > hdaudio0: HDA ver. 1.0, OSS 9, ISS 7, BSS 0, SDO 1, 64-bit
 >  >
 >  
 >  Possibly related to `option PCI_RESOURCE' being turned on in 11.99.7.
 >  See kern/60463. Try a new kernel without that option.
 >  
 >  -RVP
 >  

 -- 
 Stéphane ORTEGA  https://stephaneortega.fr/ +33 (0)684.041.350
 GPG Key ID: 0x56F6CF155AB3B3BF/2048R   IRC: Well@{libera,oftc}

From: Patrick Welche <prlw1@welche.eu>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: kern/60555: hdaudio(4) regression: RIRB timeout prevents
 attachment on Intel 300 Series HDA
Date: Sat, 29 Aug 2026 10:40:02 +0100

 On Sun, Aug 09, 2026 at 09:40:01AM +0000, RVP via gnats wrote:
 >  Possibly related to `option PCI_RESOURCE' being turned on in 11.99.7.
 >  See kern/60463. Try a new kernel without that option.

 Or kern/60427 for the original hdaudio bug report.

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