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From: Lukas Wunner <lukas@wunner.de>
To: Filippe Duke <fduke@greennet.ua>
Cc: "regressions@lists.linux.dev" <regressions@lists.linux.dev>,
	"superm1@kernel.org" <superm1@kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"bhelgaas@google.com" <bhelgaas@google.com>,
	"alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
	"tiwai@suse.com" <tiwai@suse.com>
Subject: Re: [REGRESSION][BISECTED] HDA controller MMIO unreadable on Intel 5-series PCH (Ibex Peak) since v6.16
Date: Sun, 31 May 2026 22:48:44 +0200	[thread overview]
Message-ID: <ahyerEqlBdIbQN9u@wunner.de> (raw)
In-Reply-To: <e05ab19cf41224661325a8acb5f10d31a1d8fbf0.camel@greennet.ua>

On Sun, May 31, 2026 at 07:49:59PM +0000, Filippe Duke wrote:
> 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05) (prog-if 00 [HDA compatible])
> 	Subsystem: Acer Incorporated [ALI] Device 0357
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupts: pin B disabled, MSI(X) routed to IRQ 34
> 	Region 0: Memory at cc100000 (64-bit, non-prefetchable) [size=16K]
> 	Capabilities: [50] Power Management version 2
> 		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
> 		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> 	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
> 		Address: 0000000000000000  Data: 0000

MSI is enabled but address is zeroed.  Please provide "sudo lspci -vvv"
output of a working kernel so that we can see whether there's no MSI
address configured there either.

Thanks,

Lukas

  reply	other threads:[~2026-05-31 20:49 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-29 18:26 [REGRESSION][BISECTED] HDA controller MMIO unreadable on Intel 5-series PCH (Ibex Peak) since v6.16 Filippe Duke
2026-05-31 13:21 ` Mario Limonciello
2026-05-31 19:49   ` Filippe Duke
2026-05-31 20:48     ` Lukas Wunner [this message]
2026-05-31 21:22       ` Filippe Duke
2026-06-01  7:34         ` Lukas Wunner
2026-06-16  8:12           ` Thorsten Leemhuis
2026-06-16  8:24             ` Filippe Duke

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