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Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64

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  Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 Matt Mower <mowerm@gmail.com> - 2025-06-08 17:10 +0200
    Processed: Re: Bug#1107521: linux-image-6.12.27+bpo-amd64:  ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-06-11 23:00 +0200
    Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 Uwe Kleine-König <u.kleine-koenig@baylibre.com> - 2025-06-11 23:00 +0200
    Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 Matt Mower <mowerm@gmail.com> - 2025-06-12 22:50 +0200
      Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 Salvatore Bonaccorso <carnil@debian.org> - 2025-06-14 21:40 +0200
    Processed: Re: Bug#1107521: linux-image-6.12.27+bpo-amd64:  ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-06-16 08:30 +0200
    Processed: Re: Bug#1107521: linux-image-6.12.27+bpo-amd64:  ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-06-18 11:20 +0200
    Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64 Matt Mower <mowerm@gmail.com> - 2025-06-25 07:20 +0200
    Bug#1107521: ath12k_pci errors and loss of connectivity in 6.12.y branch Robin Murphy <robin.murphy@arm.com> - 2025-06-27 12:40 +0200
    Bug#1107521: ath12k_pci errors and loss of connectivity in 6.12.y branch Matt Mower <mowerm@gmail.com> - 2025-07-02 07:30 +0200
    Bug#1107521: ath12k_pci errors and loss of connectivity in 6.12.y branch Matt Mower <mowerm@gmail.com> - 2025-07-02 17:00 +0200
    Bug#1107521: Info received (ath12k_pci errors and loss of connectivity in 6.12.y branch) Matt Mower <mowerm@gmail.com> - 2025-08-17 18:40 +0200

#87911 — Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64

Package: src:linux
Version: 6.12.27-1~bpo12+1
Severity: important
X-Debbugs-Cc: mowerm@gmail.com

Dear Maintainer,

After updating from linux-image-6.12.22+bpo-amd64 to linux-image-6.12.27+bpo-
amd64, I am seeing lots of IO_PAGE_FAULT events for device ath12k_pci, and
twice my system has completely frozen. The last freeze occurred during
shutdown; the dmesg is attached and the tail is pasted here for convenience. My
firmware is the latest available from https://git.codelinaro.org/clo/ath-
firmware/ath12k-firmware as of this writing:

Jun 08 07:28:16.437499 AI360 kernel: ath12k_pci 0000:c2:00.0: chip_id 0x2
chip_family 0x4 board_id 0xff soc_id 0x40170200
Jun 08 07:28:16.437945 AI360 kernel: ath12k_pci 0000:c2:00.0: fw_version
0x1108811c fw_build_timestamp 2025-05-17 00:21 fw_build_id
QC_IMAGE_VERSION_STRING=WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

dmesg tail from last shutdown where system froze:

Jun 08 07:31:12.531172 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980000 flags=0x0020]
Jun 08 07:31:12.531524 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980400 flags=0x0020]
Jun 08 07:31:12.531654 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980500 flags=0x0020]
Jun 08 07:31:12.531770 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980600 flags=0x0020]
Jun 08 07:31:12.531879 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980700 flags=0x0020]
Jun 08 07:31:12.531988 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980800 flags=0x0020]
Jun 08 07:31:12.532085 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980900 flags=0x0020]
Jun 08 07:31:12.532137 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980a00 flags=0x0020]
Jun 08 07:31:12.532186 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980b00 flags=0x0020]
Jun 08 07:31:12.532237 AI360 kernel: ath12k_pci 0000:c2:00.0: AMD-Vi: Event
logged [IO_PAGE_FAULT domain=0x0010 address=0xfe980c00 flags=0x0020]
Jun 08 07:31:12.532288 AI360 kernel: AMD-Vi: IOMMU Event log restarting
Jun 08 07:31:12.627163 AI360 kernel: mhi mhi0: Requested to power ON
Jun 08 07:31:12.627308 AI360 kernel: mhi mhi0: Power on setup success
Jun 08 07:32:42.923214 AI360 kernel: mhi mhi0: MHI did not load image over BHI,
ret: -5
Jun 08 07:32:42.924008 AI360 kernel: ath12k_pci 0000:c2:00.0: failed to set mhi
state: POWER_ON(2)
Jun 08 07:32:42.924245 AI360 kernel: ath12k_pci 0000:c2:00.0: failed to start
mhi: -110
Jun 08 07:35:56.055573 AI360 kernel: ath12k_pci 0000:c2:00.0: failed to send
WMI_START_SCAN_CMDID
Jun 08 07:35:56.056269 AI360 kernel: ath12k_pci 0000:c2:00.0: failed to start
hw scan: -108
Jun 08 07:45:36.703208 AI360 kernel: Lockdown: systemd-logind: hibernation is
restricted; see man kernel_lockdown.7
Jun 08 07:45:41.075220 AI360 kernel: rfkill: input handler enabled
Jun 08 07:45:53.291491 AI360 kernel: ath12k_pci 0000:c2:00.0: failed to submit
WMI_VDEV_DELETE_CMDID
Jun 08 07:45:53.309847 AI360 kernel: ath12k_pci 0000:c2:00.0: failed to delete
WMI vdev 1: -108
Jun 08 07:45:53.345825 AI360 kernel: list_del corruption. next->prev should be
ffff8a4f0fc69950, but was ffff8a4f0c33de50. (next=ffff8a4f0c33de50)
Jun 08 07:45:53.345879 AI360 kernel: ------------[ cut here ]------------
Jun 08 07:45:53.345888 AI360 kernel: kernel BUG at lib/list_debug.c:65!


-- Package-specific info:
** Kernel log: boot messages should be attached

** Model information
sys_vendor: LENOVO
product_name: 21M1001VUS
product_version: ThinkPad T14s Gen 6
chassis_vendor: LENOVO
chassis_version: None
bios_vendor: LENOVO
bios_version: R2NET36W (1.10 )
board_vendor: LENOVO
board_name: 21M1001VUS
board_version: SDK0T76576 WIN

** Configuration for modprobe:
blacklist microcode
blacklist arkfb
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist cirrusfb
blacklist cyber2000fb
blacklist kyrofb
blacklist matroxfb_base
blacklist mb862xxfb
blacklist neofb
blacklist pm2fb
blacklist pm3fb
blacklist s3fb
blacklist savagefb
blacklist sisfb
blacklist tdfxfb
blacklist tridentfb
blacklist vt8623fb
options snd_pcsp index=-2
options cx88_alsa index=-2
options snd_atiixp_modem index=-2
options snd_intel8x0m index=-2
options snd_via82xx_modem index=-2
options bonding max_bonds=0
options dummy numdummies=0
options ifb numifbs=0

** Network interface configuration:
*** /etc/network/interfaces:

source /etc/network/interfaces.d/*

auto lo
iface lo inet loopback

** PCI devices:
00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Root Complex [1022:1507]
	Subsystem: Lenovo Strix Root Complex [17aa:50f0]
	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-

00:00.2 IOMMU [0806]: Advanced Micro Devices, Inc. [AMD] Strix IOMMU [1022:1508]
	Subsystem: Lenovo Strix IOMMU [17aa:50f0]
	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
	Interrupt: pin A routed to IRQ 26
	Capabilities: <access denied>

00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge [1022:1509]
	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-
	IOMMU group: 1

00:01.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Strix PCIe USB4 Bridge [1022:150a] (prog-if 00 [Normal decode])
	Subsystem: Advanced Micro Devices, Inc. [AMD] Strix PCIe USB4 Bridge [1022:150a]
	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
	Interrupt: pin ? routed to IRQ 34
	IOMMU group: 2
	Bus: primary=00, secondary=01, subordinate=60, sec-latency=0
	I/O behind bridge: 6000-9fff [size=16K] [16-bit]
	Memory behind bridge: 98000000-afffffff [size=384M] [32-bit]
	Prefetchable memory behind bridge: 3000000000-4fffffffff [size=128G] [32-bit]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Strix PCIe USB4 Bridge [1022:150a] (prog-if 00 [Normal decode])
	Subsystem: Advanced Micro Devices, Inc. [AMD] Strix PCIe USB4 Bridge [1022:150a]
	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
	Interrupt: pin ? routed to IRQ 35
	IOMMU group: 3
	Bus: primary=00, secondary=61, subordinate=c0, sec-latency=0
	I/O behind bridge: 2000-5fff [size=16K] [16-bit]
	Memory behind bridge: 80000000-97ffffff [size=384M] [32-bit]
	Prefetchable memory behind bridge: 1000000000-2fffffffff [size=128G] [32-bit]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:02.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge [1022:1509]
	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-
	IOMMU group: 4

00:02.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Strix GPP Bridge [1022:150b] (prog-if 00 [Normal decode])
	Subsystem: Lenovo Strix GPP Bridge [17aa:50f0]
	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
	Interrupt: pin ? routed to IRQ 36
	IOMMU group: 5
	Bus: primary=00, secondary=c1, subordinate=c1, sec-latency=0
	I/O behind bridge: [disabled] [32-bit]
	Memory behind bridge: b0e00000-b0efffff [size=1M] [32-bit]
	Prefetchable memory behind bridge: [disabled] [64-bit]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:02.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Strix GPP Bridge [1022:150b] (prog-if 00 [Normal decode])
	Subsystem: Lenovo Strix GPP Bridge [17aa:50f0]
	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
	Interrupt: pin ? routed to IRQ 37
	IOMMU group: 6
	Bus: primary=00, secondary=c2, subordinate=c2, sec-latency=0
	I/O behind bridge: [disabled] [32-bit]
	Memory behind bridge: b0600000-b07fffff [size=2M] [32-bit]
	Prefetchable memory behind bridge: [disabled] [64-bit]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort+ <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:03.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge [1022:1509]
	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-
	IOMMU group: 7

00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge [1022:1509]
	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-
	IOMMU group: 8

00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Strix Internal GPP Bridge to Bus [C:A] [1022:150c] (prog-if 00 [Normal decode])
	Subsystem: Lenovo Strix Internal GPP Bridge to Bus [C:A] [17aa:50f0]
	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
	Interrupt: pin A routed to IRQ 38
	IOMMU group: 9
	Bus: primary=00, secondary=c3, subordinate=c3, sec-latency=0
	I/O behind bridge: 1000-1fff [size=4K] [16-bit]
	Memory behind bridge: b0000000-b04fffff [size=5M] [32-bit]
	Prefetchable memory behind bridge: 5000000000-50107fffff [size=264M] [32-bit]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:08.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Strix Internal GPP Bridge to Bus [C:A] [1022:150c] (prog-if 00 [Normal decode])
	Subsystem: Lenovo Strix Internal GPP Bridge to Bus [C:A] [17aa:50f0]
	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
	Interrupt: pin A routed to IRQ 39
	IOMMU group: 10
	Bus: primary=00, secondary=c4, subordinate=c4, sec-latency=0
	I/O behind bridge: [disabled] [32-bit]
	Memory behind bridge: b0c00000-b0dfffff [size=2M] [32-bit]
	Prefetchable memory behind bridge: 5010800000-50108fffff [size=1M] [32-bit]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:08.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Strix Internal GPP Bridge to Bus [C:A] [1022:150c] (prog-if 00 [Normal decode])
	Subsystem: Lenovo Strix Internal GPP Bridge to Bus [C:A] [17aa:50f0]
	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
	Interrupt: pin A routed to IRQ 40
	IOMMU group: 11
	Bus: primary=00, secondary=c5, subordinate=c5, sec-latency=0
	I/O behind bridge: [disabled] [32-bit]
	Memory behind bridge: b0800000-b0bfffff [size=4M] [32-bit]
	Prefetchable memory behind bridge: [disabled] [64-bit]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 71)
	Subsystem: Lenovo FCH SMBus Controller [17aa:50f0]
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	IOMMU group: 12
	Kernel driver in use: piix4_smbus
	Kernel modules: i2c_piix4, sp5100_tco

00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
	Subsystem: Lenovo FCH LPC Bridge [17aa:50f0]
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	IOMMU group: 12

00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 0 [1022:16f8]
	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-
	IOMMU group: 13

00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 1 [1022:16f9]
	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-
	IOMMU group: 13

00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 2 [1022:16fa]
	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-
	IOMMU group: 13

00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 3 [1022:16fb]
	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-
	IOMMU group: 13
	Kernel driver in use: k10temp
	Kernel modules: k10temp

00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 4 [1022:16fc]
	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-
	IOMMU group: 13

00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 5 [1022:16fd]
	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-
	IOMMU group: 13

00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 6 [1022:16fe]
	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-
	IOMMU group: 13

00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 7 [1022:16ff]
	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-
	IOMMU group: 13

c1:00.0 Non-Volatile memory controller [0108]: KIOXIA Corporation NVMe SSD Controller XG8 [1e0f:0010] (rev 01) (prog-if 02 [NVM Express])
	Subsystem: KIOXIA Corporation NVMe SSD Controller XG8 [1e0f:0001]
	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
	Interrupt: pin A routed to IRQ 25
	IOMMU group: 14
	Region 0: Memory at b0e00000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: nvme
	Kernel modules: nvme

c2:00.0 Network controller [0280]: Qualcomm Technologies, Inc WCN785x Wi-Fi 7(802.11be) 320MHz 2x2 [FastConnect 7800] [17cb:1107] (rev 01)
	Subsystem: Lenovo WCN785x Wi-Fi 7(802.11be) 320MHz 2x2 [FastConnect 7800] [17aa:e0e6]
	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
	Interrupt: pin ? routed to IRQ 108
	IOMMU group: 15
	Region 0: Memory at b0600000 (64-bit, non-prefetchable) [size=2M]
	Capabilities: <access denied>
	Kernel driver in use: ath12k_pci
	Kernel modules: ath12k

c3:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Strix [Radeon 880M / 890M] [1002:150e] (rev d2)
	Subsystem: Lenovo Strix [Radeon 880M / 890M] [17aa:50f0]
	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
	Interrupt: pin A routed to IRQ 101
	IOMMU group: 16
	Region 0: Memory at 5000000000 (64-bit, prefetchable) [size=256M]
	Region 2: Memory at b0000000 (64-bit, prefetchable) [size=2M]
	Region 4: I/O ports at 1000 [size=256]
	Region 5: Memory at b0400000 (32-bit, non-prefetchable) [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu

c3:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon High Definition Audio Controller [1002:1640]
	Subsystem: Lenovo Rembrandt Radeon High Definition Audio Controller [17aa:50f0]
	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
	Interrupt: pin B routed to IRQ 106
	IOMMU group: 17
	Region 0: Memory at b04c8000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

c3:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Strix CCP/ASP [1022:17e0]
	Subsystem: Lenovo Strix CCP/ASP [17aa:50f0]
	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
	Interrupt: pin C routed to IRQ 103
	IOMMU group: 18
	Region 2: Memory at b0300000 (32-bit, non-prefetchable) [size=1M]
	Region 5: Memory at b04cc000 (32-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: ccp
	Kernel modules: ccp

c3:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:151e] (prog-if 30 [XHCI])
	Subsystem: Lenovo Device [17aa:50f0]
	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, Cache Line Size: 64 bytes
	Interrupt: pin D routed to IRQ 92
	IOMMU group: 19
	Region 0: Memory at b0200000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

c3:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor [1022:15e2] (rev 70)
	Subsystem: Lenovo ACP/ACP3X/ACP6x Audio Coprocessor [17aa:50f0]
	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
	Interrupt: pin A routed to IRQ 101
	IOMMU group: 20
	Region 0: Memory at b0480000 (32-bit, non-prefetchable) [size=256K]
	Region 2: Memory at 5010000000 (64-bit, prefetchable) [size=8M]
	Capabilities: <access denied>
	Kernel driver in use: snd_acp_pci
	Kernel modules: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x, snd_pci_acp6x, snd_acp_pci, snd_rpl_pci_acp6x, snd_pci_ps, snd_sof_amd_rembrandt

c3:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller [1022:15e3]
	Subsystem: Lenovo Family 17h/19h/1ah HD Audio Controller [17aa:50f0]
	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
	Interrupt: pin B routed to IRQ 107
	IOMMU group: 21
	Region 0: Memory at b04c0000 (32-bit, non-prefetchable) [size=32K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

c4:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Strix PCIe Dummy function [1022:150d]
	Subsystem: Advanced Micro Devices, Inc. [AMD] Strix PCIe Dummy function [1022:150d]
	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-
	IOMMU group: 22
	Capabilities: <access denied>

c4:00.1 Signal processing controller [1180]: Advanced Micro Devices, Inc. [AMD] Strix Neural Processing Unit [1022:17f0] (rev 10)
	Subsystem: Lenovo Strix Neural Processing Unit [17aa:50f0]
	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-
	Interrupt: pin A routed to IRQ 255
	IOMMU group: 23
	Region 0: Memory at b0c00000 (32-bit, non-prefetchable) [disabled] [size=1M]
	Region 1: Memory at b0d00000 (32-bit, non-prefetchable) [disabled] [size=8K]
	Region 2: Memory at 5010800000 (64-bit, prefetchable) [disabled] [size=512K]
	Region 4: Memory at b0d03000 (32-bit, non-prefetchable) [disabled] [size=4K]
	Region 5: Memory at b0d02000 (32-bit, non-prefetchable) [disabled] [size=4K]
	Capabilities: <access denied>

c5:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:151f] (prog-if 30 [XHCI])
	Subsystem: Lenovo Device [17aa:50f0]
	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, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 58
	IOMMU group: 24
	Region 0: Memory at b0800000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

c5:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:151a] (prog-if 30 [XHCI])
	Subsystem: Advanced Micro Devices, Inc. [AMD] Device [1022:151a]
	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, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 95
	IOMMU group: 25
	Region 0: Memory at b0900000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

c5:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:151b] (prog-if 30 [XHCI])
	Subsystem: Advanced Micro Devices, Inc. [AMD] Device [1022:151b]
	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, Cache Line Size: 64 bytes
	Interrupt: pin C routed to IRQ 97
	IOMMU group: 26
	Region 0: Memory at b0a00000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

c5:00.5 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:151c] (prog-if 40 [USB4 Host Interface])
	Subsystem: Advanced Micro Devices, Inc. [AMD] Device [1022:151c]
	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
	Interrupt: pin D routed to IRQ 41
	IOMMU group: 27
	Region 0: Memory at b0b00000 (64-bit, non-prefetchable) [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: thunderbolt
	Kernel modules: thunderbolt

c5:00.6 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:151d] (prog-if 40 [USB4 Host Interface])
	Subsystem: Advanced Micro Devices, Inc. [AMD] Device [1022:151d]
	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
	Interrupt: pin A routed to IRQ 58
	IOMMU group: 28
	Region 0: Memory at b0b80000 (64-bit, non-prefetchable) [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: thunderbolt
	Kernel modules: thunderbolt


** USB devices:
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 0489:e0fc Foxconn / Hon Hai 
Bus 003 Device 003: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 003 Device 002: ID 06cb:00f9 Synaptics, Inc. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 5986:1199 Bison Electronics Inc. Integrated Camera
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: 12.11
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.22+bpo-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-6.12.27+bpo-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.142+deb12u3
ii  kmod                                    30+20221128-1
ii  linux-base                              4.9

Versions of packages linux-image-6.12.27+bpo-amd64 recommends:
ii  apparmor  3.0.8-3

Versions of packages linux-image-6.12.27+bpo-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  firmware-linux-free     20200122-1
ii  grub-efi-amd64          2.06-13+deb12u1
pn  linux-doc-6.12          <none>

Versions of packages linux-image-6.12.27+bpo-amd64 is related to:
ii  firmware-amd-graphics      20250410-2~bpo12+1
ii  firmware-atheros           20250410-2~bpo12+1
pn  firmware-bnx2              <none>
pn  firmware-bnx2x             <none>
pn  firmware-brcm80211         <none>
pn  firmware-cavium            <none>
pn  firmware-cirrus            <none>
pn  firmware-intel-graphics    <none>
pn  firmware-intel-misc        <none>
pn  firmware-intel-sound       <none>
pn  firmware-ipw2x00           <none>
pn  firmware-ivtv              <none>
pn  firmware-iwlwifi           <none>
pn  firmware-libertas          <none>
pn  firmware-marvell-prestera  <none>
pn  firmware-mediatek          <none>
pn  firmware-misc-nonfree      <none>
pn  firmware-myricom           <none>
pn  firmware-netronome         <none>
pn  firmware-netxen            <none>
pn  firmware-nvidia-graphics   <none>
pn  firmware-qcom-soc          <none>
pn  firmware-qlogic            <none>
ii  firmware-realtek           20250410-2~bpo12+1
pn  firmware-samsung           <none>
pn  firmware-siano             <none>
pn  firmware-ti-connectivity   <none>
pn  xen-hypervisor             <none>

-- no debconf information

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#87943 — Processed: Re: Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64

Processing control commands:

> tag -1 +moreinfo
Bug #1107521 [src:linux] linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64
Added tag(s) moreinfo.

-- 
1107521: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107521
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#87944

[Multipart message — attachments visible in raw view] — view raw

Control: tag -1 +moreinfo

Hello Matt,

On Sun, Jun 08, 2025 at 08:00:43AM -0700, Matt Mower wrote:
> After updating from linux-image-6.12.22+bpo-amd64 to linux-image-6.12.27+bpo-
> amd64, I am seeing lots of IO_PAGE_FAULT events for device ath12k_pci, and
> twice my system has completely frozen.

There are a few ath12k patches between 6.12.22 and 6.12.27 and a few
more in later stable releases in the 6.12.x series. Can you please test
on the latest 6.12 kernel? There is currently no backport kernel for
that version, but in my experience the kernel from testing should
install fine on a stable box.

If the issue also happens on 6.12.32, someone has to bring that forward
to upstream's attention.

Best regards
Uwe

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#87951

[Multipart message — attachments visible in raw view] — view raw

After several suspends and plenty of uptime on battery, I'm fairly
confident that linux-image-6.12.12+bpo-amd64_6.12.12-1~bpo12+1_amd64 paired
with firmware-atheros_20250410-2~bpo12+1_all is stable. There are only 2
commits to the ath12k driver between 6.12.12 and 6.12.22:

44de00e8bc8f wifi: ath12k: fix handling of 6 GHz rules
425f6a38173b wifi: ath12k: fix tx power, max reg power update to firmware

So, I'll next test 6.12.22 with reverts of one or both of these.

On Wed, Jun 11, 2025 at 9:50 PM Matt Mower <mowerm@gmail.com> wrote:

> For what it's worth, if you check the replies after the original report,
> you can see that I tested 6.12.32 as well as 6.12.27 with ath12k patches
> reverted. Unfortunately, I can reproduce it in 6.12.22 now as well; the bug
> only seems to appear when my laptop is not connected to a power source. I
> reproduce it most often when the device shuts down or goes to sleep, at
> which point it freezes completely. I snapped a picture when I saw more
> debugging information that normal on the screen (attached). I've tried
> downgrading to firmware-atheros_20250410-2~bpo12+1_all as well (dmesg
> reports firmware fw_version 0x100301e1 fw_build_timestamp 2023-12-06
> 04:05), and that didn't resolve the issue.
>
> I'm continuing to test older kernel and firmware versions until I find
> something stable.
>
> On Wed, Jun 11, 2025 at 1:49 PM Uwe Kleine-König <
> u.kleine-koenig@baylibre.com> wrote:
>
>> Control: tag -1 +moreinfo
>>
>> Hello Matt,
>>
>> On Sun, Jun 08, 2025 at 08:00:43AM -0700, Matt Mower wrote:
>> > After updating from linux-image-6.12.22+bpo-amd64 to
>> linux-image-6.12.27+bpo-
>> > amd64, I am seeing lots of IO_PAGE_FAULT events for device ath12k_pci,
>> and
>> > twice my system has completely frozen.
>>
>> There are a few ath12k patches between 6.12.22 and 6.12.27 and a few
>> more in later stable releases in the 6.12.x series. Can you please test
>> on the latest 6.12 kernel? There is currently no backport kernel for
>> that version, but in my experience the kernel from testing should
>> install fine on a stable box.
>>
>> If the issue also happens on 6.12.32, someone has to bring that forward
>> to upstream's attention.
>>
>> Best regards
>> Uwe
>>
>

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#87974

Hi Matt,

On Thu, Jun 12, 2025 at 01:46:03PM -0700, Matt Mower wrote:
> After several suspends and plenty of uptime on battery, I'm fairly
> confident that linux-image-6.12.12+bpo-amd64_6.12.12-1~bpo12+1_amd64 paired
> with firmware-atheros_20250410-2~bpo12+1_all is stable. There are only 2
> commits to the ath12k driver between 6.12.12 and 6.12.22:
> 
> 44de00e8bc8f wifi: ath12k: fix handling of 6 GHz rules
> 425f6a38173b wifi: ath12k: fix tx power, max reg power update to firmware
> 
> So, I'll next test 6.12.22 with reverts of one or both of these.

Looking forward to see the results, can you then please remove the
moreinfo tag on the bug when providing the information? This brings
the bug more prominently back on the radar.

(And having identified the breaking commit helps filling a proper
bugreport upstream).

Regards,
Salvatore

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#88006 — Processed: Re: Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64

Processing control commands:

> tag -1 -moreinfo
Bug #1107521 [src:linux] linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64
Removed tag(s) moreinfo.

-- 
1107521: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107521
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#88019 — Processed: Re: Bug#1107521: linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64

Processing control commands:

> found -1 6.12.12-1
Bug #1107521 [src:linux] linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64
Marked as found in versions linux/6.12.12-1.
> notfound -1 6.12.27-1~bpo12+1
Bug #1107521 [src:linux] linux-image-6.12.27+bpo-amd64: ath12k_pci errors and eventual kernel panic starting with linux-image-6.12.27+bpo-amd64
No longer marked as found in versions linux/6.12.27-1~bpo12+1.

-- 
1107521: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107521
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#88130

[Multipart message — attachments visible in raw view] — view raw

> OK, so I suggest we wait a bit for the problem to happen on 6.15.

I have not reproduced this issue on 6.15.2 or 6.15.3.

I tested 6.12.34 tonight and the issue still exists. I have not found
changes that can be cherry-picked to resolve the issue in 6.12.x.

> Do you want to care for that then?

I would appreciate some help with this so that I don't report incorrectly.
Happy to continue providing information, but if someone could help with
initiating the bug report, that would be helpful.

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#88171 — Bug#1107521: ath12k_pci errors and loss of connectivity in 6.12.y branch

+Vasant

On 2025-06-27 6:39 am, Baochen Qiang wrote:
> [+ IOMMU list]
> 
> On 6/27/2025 12:21 AM, Matt Mower wrote:
>> Dear maintainer,
>>
>> I have been experiencing lost network connection with the ath12k_pci driver
>> in the linux-6.12.y kernel branch. Often, when the issue occurs, the
>> network does not recover until I reboot the computer. A full report of the
>> errors I encounter, the symptoms that arise, and several dmesg attachments
>> are in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107521 . I have
>> attached a dmesg from 6.12.34 for convenience. The short summary is:
>>
>> 1. I started noticing log lines like the following soon after boot when I
>> updated from 6.12.22 to 6.12.27. After these events occur, the network goes
>> down and often does not come back up.
>>     ath12k_pci 0000:c2:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT
>> domain=0x0010 address=0xfea00000 flags=0x0020]
>> 2. I was able to reproduce this issue very rarely in 6.12.12 and 6.12.22.
>> The issue always occurs soon after boot in 6.12.27, 6.12.30, 6.12.33, and
>> 6.12.34.
>> 3. I have not reproduced the issue in 6.15.2 or 6.15.3.
>> 4. In some cases, when shutting down the computer, a kernel bug caused my
>> computer to hang. I haven't determined whether this is related to the issue
>> above or an independent issue. Search the bug report
>> for PXL_20250611_140820085.jpg to see a picture of the kernel bug on my
>> laptop screen.
>> 5. I have tested two firmware versions:
>>     a. fw_version 0x1108811c fw_build_timestamp 2025-05-17 00:21 fw_build_id
>> QC_IMAGE_VERSION_STRING=WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>>     b. fw_version 0x100301e1 fw_build_timestamp 2023-12-06 04:05 fw_build_id
>> QC_IMAGE_VERSION_STRING=WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>>
>> Thanks,
>> Matt
>>
> 
> I had a quick test with 6.12.27 kernel on both my Intel desktop and AMD RD but didn't hit
> the issue. And I am using WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3.
> 
> As mentioned in the Debian bug report, since reverting ath12k patches does not fix this
> issue, maybe it comes from the IOMMU subsystem?

Faults are usually still indicative of the client driver/subsystem doing 
something not quite right - racily performing dma_unmap before the 
device has actually finished making accesses; mapping the wrong size 
such that the device accesses off the end of the mapping (this can often 
run into another valid mapping so not necessarily fault); mapping the 
wrong DMA direction such that the device then tries to write to a 
read-only page. However I suppose it's not impossible that some fix to 
amd-iommu in that period might have changed its behaviour in a way that 
exacerbates things - Vasant, does this strike a chord with anything 
you're aware of?

A couple more things I'd try on the ath12k side: firstly, boot with 
"iommu.strict=1" and see if that makes the faults any more 
frequent/reproducible; if a fault is fairly easily reproducible, then 
use the DMA API and/or IOMMU API tracepoints to compare the fault 
address to prior DMA mapping activity - that can usually reveal the 
nature of the bug enough to then know what to go looking for.

I wouldn't put much significance in whatever happens *after* the fault - 
presumably the driver is assuming the blocked DMA write has completed, 
so then goes on to read some incomplete descriptor as if it were valid, 
and thus may fall over in all manner of entertaining ways on bogus data.

Thanks,
Robin.

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#88217 — Bug#1107521: ath12k_pci errors and loss of connectivity in 6.12.y branch

> A couple more things I'd try on the ath12k side: firstly, boot with
> "iommu.strict=1" and see if that makes the faults any more
> frequent/reproducible;

The issue is easy enough to reproduce in 6.12.27 onward and I may be
mistaken about the rarity in 6.12.22; I reproduced it relatively
quickly in .22 today, so if this was the primary purpose for setting
iommu.strict=1, then testing with or without strict works. FWIW, I did
test iommu.strict=1 with 6.15.3 and still have not reproduced this
issue there.

> if a fault is fairly easily reproducible, then
> use the DMA API and/or IOMMU API tracepoints to compare the fault
> address to prior DMA mapping activity - that can usually reveal the
> nature of the bug enough to then know what to go looking for.

This is unfamiliar territory for me, so I hope the following is at
least close to what you requested. If not, happy to provide more test
results based on a set of instructions. Here's what I did:

1. Set CONFIG_DMA_API_DEBUG=y
2. Set kernel command line to: iommu.strict=1 log_buf_len=100M
dma_debug_driver=ath12k_pci trace_event=dma:*,iommu:*
3. Booted and waited for page fault, then cat'd
/sys/kernel/tracing/trace to a file.

Additionally, though I'm pretty sure this is irrelevant now, I added
logging after each dma_map_single() in the ath12k driver to print the
function name and resultant address to the kernel log.

Comparing the addresses of several io_page_fault lines in the trace
and in the kernel log, they line up. So, I'm hopeful this is on the
right track.

DMA/IOMMU trace: https://cmphys.com/ath12k/iommu_dma_trace-20250701.log
Kernel log with additional logging:
https://cmphys.com/ath12k/dmesg-6.12.35-20250701.log
Diff showing extra logging added to v6.12.35:
https://cmphys.com/ath12k/ath12k-extra-logging-6.12.35-20250701.diff

Thanks,
Matt

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#88220 — Bug#1107521: ath12k_pci errors and loss of connectivity in 6.12.y branch

> Matt, could you help enable verbose ath12k log to verify my guess?

Here are kernel logs with ath12k debugging enabled:
1. WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
   https://cmphys.com/ath12k/dmesg-6.12.35-ath12kdebug-fw0x100301e1-20250702.log
2. WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
   https://cmphys.com/ath12k/dmesg-6.12.35-ath12kdebug-fw0x1108811c-20250702.log

I captured these after setting CONFIG_ATH12K_DEBUG=y and running "echo
0xffffffff > /sys/module/ath12k/parameters/debug_mask" during boot
(using @reboot in crontab).

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#88885 — Bug#1107521: Info received (ath12k_pci errors and loss of connectivity in 6.12.y branch)

Uwe and Salvatore,

FYI, this bug affects the Trixie installer (and after installation,
too). As soon as the Trixie installer reached the point of detecting
network interfaces, my system completely froze with a blinking light
on the caps lock key. This was not intermittent; it always happened
when I retried. I was only able to proceed by removing
firmware-atheros_20250410-2_all.deb from the installer ISO and then I
could continue without WiFi during installation (I used a USB ethernet
dongle). Now with Trixie installed, I have a stable system with my
ath12k cherry-picks on top of stable 6.12 (e.g
https://github.com/mdmower/linux/tree/mdm-6.12.41-ath12k ), but that
doesn't help others. So, I wanted to make you two aware in case you
see other reports of trouble with the ath12k firmware and/or driver in
Trixie. Unfortunately, I haven't heard from Baochen Qiang since July
2.

Matt

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