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Message-ID: <6c119f2e-1bf8-60b8-ce32-113a30d29152@leemhuis.info>
Date:   Wed, 9 Mar 2022 09:03:31 +0100
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Subject: Re: Bisected regression: 4287509b4d21 causes HP Spectre 14t-ea100 to
 overheat while suspended
Content-Language: en-US
To:     Philippe Troin <phil@fifi.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc:     linux-kernel@vger.kernel.org,
        "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "regressions@lists.linux.dev" <regressions@lists.linux.dev>
References: <e1b3112fd6c8c889408915e9a849301d13acf2f1.camel@fifi.org>
From:   Thorsten Leemhuis <regressions@leemhuis.info>
In-Reply-To: <e1b3112fd6c8c889408915e9a849301d13acf2f1.camel@fifi.org>
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[TLDR: I'm adding the regression report below to regzbot, the Linux
kernel regression tracking bot; all text you find below is compiled from
a few templates paragraphs you might have encountered already already
from similar mails.]

Hi, this is your Linux kernel regression tracker.

On 09.03.22 04:50, Philippe Troin wrote:
> Linux 5.16.9 was working fine, but starting with 5.16.10 my main laptop
> has been overheating while suspended.
> I've also tried 5.16.11, 5.16.12 and 5.16.13 and they also show the
> same issue (overheating while suspended).
> 
> I could not spot any difference between the dmesg messages issued
> during suspend between a working version (5.16.9) and the the broken
> ones (5.16.1[0-3]).
> 
> I've bisected the regression down to commit 4287509b4d21
> https://lore.kernel.org/lkml/20220214092510.074083242@linuxfoundation.org/
> 
> I have also tried reverting that change on top of 5.16.12, and the
> overheating behavior is gone.
> 
> lspci and other details below.
> 
> Phil.

Thanks for the report.

CCing the stable and the regression mailing list

To be sure below issue doesn't fall through the cracks unnoticed, I'm
adding it to regzbot, my Linux kernel regression tracking bot:

#regzbot ^introduced 4287509b4d21
#regzbot title HP Spectre 14t-ea100 overheats while suspended
#regzbot ignore-activity

If it turns out this isn't a regression, free free to remove it from the
tracking by sending a reply to this thread containing a paragraph like
"#regzbot invalid: reason why this is invalid" (without the quotes).

Reminder for developers: when fixing the issue, please add a 'Link:'
tags pointing to the report (the mail quoted above) using
lore.kernel.org/r/, as explained in
'Documentation/process/submitting-patches.rst' and
'Documentation/process/5.Posting.rst'. Regzbot needs them to
automatically connect reports with fixes, but they are useful in
general, too.

I'm sending this to everyone that got the initial report, to make
everyone aware of the tracking. I also hope that messages like this
motivate people to directly get at least the regression mailing list and
ideally even regzbot involved when dealing with regressions, as messages
like this wouldn't be needed then. And don't worry, if I need to send
other mails regarding this regression only relevant for regzbot I'll
send them to the regressions lists only (with a tag in the subject so
people can filter them away). With a bit of luck no such messages will
be needed anyway.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I'm getting a lot of
reports on my table. I can only look briefly into most of them and lack
knowledge about most of the areas they concern. I thus unfortunately
will sometimes get things wrong or miss something important. I hope
that's not the case here; if you think it is, don't hesitate to tell me
in a public reply, it's in everyone's interest to set the public record
straight.


> The laptop is a HP Spectre x360 Convertible 14t-ea100.
> 
> CPU (/proc/cpuinfo): 11th Gen Intel(R) Core(TM) i7-1195G7 @ 2.90GHz
> 
> # lspci -v
> 0000:00:00.0 Host bridge: Intel Corporation 11th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IOMMU group 0
> 	Capabilities: [e0] Vendor Specific Information: Len=14 <?>
> 	Kernel modules: igen6_edac
> 
> 0000:00:02.0 VGA compatible controller: Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] (rev 03) (prog-if 00 [VGA controller])
> 	DeviceName:  Onboard IGD
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IRQ 159, IOMMU group 1
> 	Memory at 603e000000 (64-bit, non-prefetchable) [size=16M]
> 	Memory at 4000000000 (64-bit, prefetchable) [size=256M]
> 	I/O ports at 3000 [size=64]
> 	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
> 	Capabilities: [40] Vendor Specific Information: Len=0c <?>
> 	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
> 	Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable+ 64bit-
> 	Capabilities: [d0] Power Management version 2
> 	Capabilities: [100] Process Address Space ID (PASID)
> 	Capabilities: [200] Address Translation Service (ATS)
> 	Capabilities: [300] Page Request Interface (PRI)
> 	Capabilities: [320] Single Root I/O Virtualization (SR-IOV)
> 	Kernel driver in use: i915
> 	Kernel modules: i915
> 
> 0000:00:04.0 Signal processing controller: Intel Corporation TigerLake-LP Dynamic Tuning Processor Participant (rev 02)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: fast devsel, IRQ 16, IOMMU group 2
> 	Memory at 603f240000 (64-bit, non-prefetchable) [size=128K]
> 	Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
> 	Capabilities: [d0] Power Management version 3
> 	Capabilities: [e0] Vendor Specific Information: Len=0c <?>
> 	Kernel driver in use: proc_thermal
> 	Kernel modules: processor_thermal_device_pci_legacy
> 
> 0000:00:07.0 PCI bridge: Intel Corporation Tiger Lake-LP Thunderbolt 4 PCI Express Root Port #0 (rev 02) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 124, IOMMU group 3
> 	Bus: primary=00, secondary=01, subordinate=2b, sec-latency=0
> 	I/O behind bridge: 00004000-00004fff [size=4K]
> 	Memory behind bridge: 7a000000-861fffff [size=194M]
> 	Prefetchable memory behind bridge: 0000006020000000-000000603bffffff [size=448M]
> 	Capabilities: [40] Express Root Port (Slot+), MSI 00
> 	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> 	Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89da
> 	Capabilities: [a0] Power Management version 3
> 	Capabilities: [100] Null
> 	Capabilities: [220] Access Control Services
> 	Capabilities: [a00] Downstream Port Containment
> 	Kernel driver in use: pcieport
> 
> 0000:00:07.1 PCI bridge: Intel Corporation Tiger Lake-LP Thunderbolt 4 PCI Express Root Port #1 (rev 02) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 125, IOMMU group 4
> 	Bus: primary=00, secondary=2c, subordinate=56, sec-latency=0
> 	I/O behind bridge: 00005000-00005fff [size=4K]
> 	Memory behind bridge: 6c000000-781fffff [size=194M]
> 	Prefetchable memory behind bridge: 0000006000000000-000000601bffffff [size=448M]
> 	Capabilities: [40] Express Root Port (Slot+), MSI 00
> 	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> 	Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89da
> 	Capabilities: [a0] Power Management version 3
> 	Capabilities: [100] Null
> 	Capabilities: [220] Access Control Services
> 	Capabilities: [a00] Downstream Port Containment
> 	Kernel driver in use: pcieport
> 
> 0000:00:08.0 System peripheral: Intel Corporation GNA Scoring Accelerator module (rev 02)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: fast devsel, IRQ 255, IOMMU group 5
> 	Memory at 603f2a2000 (64-bit, non-prefetchable) [disabled] [size=4K]
> 	Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
> 	Capabilities: [a0] Vendor Specific Information: Len=14 <?>
> 	Capabilities: [dc] Power Management version 2
> 	Capabilities: [f0] PCI Advanced Features
> 
> 0000:00:0d.0 USB controller: Intel Corporation Tiger Lake-LP Thunderbolt 4 USB Controller (rev 02) (prog-if 30 [XHCI])
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, medium devsel, latency 0, IRQ 127, IOMMU group 6
> 	Memory at 603f280000 (64-bit, non-prefetchable) [size=64K]
> 	Capabilities: [70] Power Management version 2
> 	Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
> 	Capabilities: [90] Vendor Specific Information: Len=14 <?>
> 	Capabilities: [b0] Vendor Specific Information: Len=00 <?>
> 	Kernel driver in use: xhci_hcd
> 
> 0000:00:0d.2 USB controller: Intel Corporation Tiger Lake-LP Thunderbolt 4 NHI #0 (rev 02) (prog-if 40 [USB4 Host Interface])
> 	Subsystem: Device 2222:1111
> 	Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 6
> 	Memory at 603f200000 (64-bit, non-prefetchable) [size=256K]
> 	Memory at 603f2a1000 (64-bit, non-prefetchable) [size=4K]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+
> 	Capabilities: [a0] MSI-X: Enable+ Count=16 Masked-
> 	Kernel driver in use: thunderbolt
> 	Kernel modules: thunderbolt
> 
> 0000:00:0e.0 RAID bus controller: Intel Corporation Volume Management Device NVMe RAID Controller
> 	Subsystem: Intel Corporation Device 0000
> 	Flags: bus master, fast devsel, latency 0, IOMMU group 7
> 	Memory at 603c000000 (64-bit, non-prefetchable) [size=32M]
> 	Memory at 6a000000 (32-bit, non-prefetchable) [size=32M]
> 	Memory at 603f100000 (64-bit, non-prefetchable) [size=1M]
> 	Capabilities: [80] MSI-X: Enable+ Count=19 Masked-
> 	Capabilities: [90] Express Root Complex Integrated Endpoint, MSI 00
> 	Capabilities: [e0] Power Management version 3
> 	Kernel driver in use: vmd
> 	Kernel modules: vmd
> 
> 0000:00:12.0 Serial controller: Intel Corporation Tiger Lake-LP Integrated Sensor Hub (rev 30) (prog-if 00 [8250])
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 8
> 	Memory at 603f270000 (64-bit, non-prefetchable) [size=64K]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [90] Vendor Specific Information: Len=14 <?>
> 	Kernel driver in use: intel_ish_ipc
> 	Kernel modules: intel_ish_ipc
> 
> 0000:00:14.0 USB controller: Intel Corporation Tiger Lake-LP USB 3.2 Gen 2x1 xHCI Host Controller (rev 30) (prog-if 30 [XHCI])
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, medium devsel, latency 0, IRQ 128, IOMMU group 9
> 	Memory at 603f260000 (64-bit, non-prefetchable) [size=64K]
> 	Capabilities: [70] Power Management version 2
> 	Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
> 	Capabilities: [90] Vendor Specific Information: Len=14 <?>
> 	Capabilities: [b0] Vendor Specific Information: Len=00 <?>
> 	Kernel driver in use: xhci_hcd
> 
> 0000:00:14.2 RAM memory: Intel Corporation Tiger Lake-LP Shared SRAM (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: fast devsel, IOMMU group 9
> 	Memory at 603f298000 (64-bit, non-prefetchable) [disabled] [size=16K]
> 	Memory at 603f2a0000 (64-bit, non-prefetchable) [disabled] [size=4K]
> 	Capabilities: [80] Power Management version 3
> 
> 0000:00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201 (rev 30)
> 	DeviceName: Intel Wi-Fi 6 AX201
> 	Subsystem: Intel Corporation Device 0074
> 	Flags: bus master, fast devsel, latency 0, IRQ 19, IOMMU group 10
> 	Memory at 603f294000 (64-bit, non-prefetchable) [size=16K]
> 	Capabilities: [c8] Power Management version 3
> 	Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
> 	Capabilities: [40] Express Root Complex Integrated Endpoint, MSI 00
> 	Capabilities: [80] MSI-X: Enable+ Count=16 Masked-
> 	Capabilities: [100] Latency Tolerance Reporting
> 	Capabilities: [164] Vendor Specific Information: ID=0010 Rev=0 Len=014 <?>
> 	Kernel driver in use: iwlwifi
> 	Kernel modules: iwlwifi
> 
> 0000:00:15.0 Serial bus controller: Intel Corporation Tiger Lake-LP Serial IO I2C Controller #0 (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IRQ 27, IOMMU group 11
> 	Memory at 4017000000 (64-bit, non-prefetchable) [virtual] [size=4K]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [90] Vendor Specific Information: Len=14 <?>
> 	Kernel driver in use: intel-lpss
> 
> 0000:00:15.1 Serial bus controller: Intel Corporation Tiger Lake-LP Serial IO I2C Controller #1 (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IRQ 40, IOMMU group 11
> 	Memory at 4017001000 (64-bit, non-prefetchable) [virtual] [size=4K]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [90] Vendor Specific Information: Len=14 <?>
> 	Kernel driver in use: intel-lpss
> 
> 0000:00:16.0 Communication controller: Intel Corporation Tiger Lake-LP Management Engine Interface (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IRQ 186, IOMMU group 12
> 	Memory at 603f29d000 (64-bit, non-prefetchable) [size=4K]
> 	Capabilities: [50] Power Management version 3
> 	Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
> 	Capabilities: [a4] Vendor Specific Information: Len=14 <?>
> 	Kernel driver in use: mei_me
> 	Kernel modules: mei_me
> 
> 0000:00:1c.0 PCI bridge: Intel Corporation Tigerlake PCH-LP PCI Express Root Port #6 (rev 30) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 126, IOMMU group 13
> 	Bus: primary=00, secondary=57, subordinate=57, sec-latency=0
> 	I/O behind bridge: [disabled]
> 	Memory behind bridge: 86300000-863fffff [size=1M]
> 	Prefetchable memory behind bridge: [disabled]
> 	Capabilities: [40] Express Root Port (Slot-), MSI 00
> 	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> 	Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89db
> 	Capabilities: [a0] Power Management version 3
> 	Capabilities: [100] Advanced Error Reporting
> 	Capabilities: [220] Access Control Services
> 	Capabilities: [150] Precision Time Measurement
> 	Capabilities: [200] L1 PM Substates
> 	Capabilities: [a30] Secondary PCI Express
> 	Capabilities: [a00] Downstream Port Containment
> 	Kernel driver in use: pcieport
> 
> 0000:00:1d.0 System peripheral: Intel Corporation Device 09ab
> 	Subsystem: Hewlett-Packard Company Device 89da
> 	Flags: fast devsel, IOMMU group 14
> 
> 0000:00:1f.0 ISA bridge: Intel Corporation Tiger Lake-LP LPC Controller (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IOMMU group 15
> 
> 0000:00:1f.3 Multimedia audio controller: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89da
> 	Flags: bus master, fast devsel, latency 32, IRQ 197, IOMMU group 15
> 	Memory at 603f290000 (64-bit, non-prefetchable) [size=16K]
> 	Memory at 603f000000 (64-bit, non-prefetchable) [size=1M]
> 	Capabilities: [50] Power Management version 3
> 	Capabilities: [80] Vendor Specific Information: Len=14 <?>
> 	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
> 	Kernel driver in use: sof-audio-pci-intel-tgl
> 	Kernel modules: snd_hda_intel, snd_sof_pci_intel_tgl
> 
> 0000:00:1f.4 SMBus: Intel Corporation Tiger Lake-LP SMBus Controller (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: medium devsel, IRQ 16, IOMMU group 15
> 	Memory at 603f29c000 (64-bit, non-prefetchable) [size=256]
> 	I/O ports at efa0 [size=32]
> 	Kernel driver in use: i801_smbus
> 	Kernel modules: i2c_i801
> 
> 0000:00:1f.5 Serial bus controller: Intel Corporation Tiger Lake-LP SPI Controller (rev 30)
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: fast devsel, IOMMU group 15
> 	Memory at 68400000 (32-bit, non-prefetchable) [size=4K]
> 
> 0000:2c:00.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode])
> 	Physical Slot: 0-1
> 	Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 17
> 	Bus: primary=2c, secondary=2d, subordinate=56, sec-latency=0
> 	I/O behind bridge: 00005000-00005fff [size=4K]
> 	Memory behind bridge: 6c000000-781fffff [size=194M]
> 	Prefetchable memory behind bridge: 0000006000000000-000000601bffffff [size=448M]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+
> 	Capabilities: [ac] Subsystem: Intel Corporation Device 0000
> 	Capabilities: [c0] Express Upstream Port, MSI 00
> 	Capabilities: [50] Capability ID 0x15 [0000]
> 	Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00
> 	Capabilities: [200] Advanced Error Reporting
> 	Capabilities: [300] Virtual Channel
> 	Capabilities: [400] Power Budgeting <?>
> 	Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?>
> 	Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?>
> 	Capabilities: [700] Secondary PCI Express
> 	Capabilities: [800] Latency Tolerance Reporting
> 	Capabilities: [a00] L1 PM Substates
> 	Capabilities: [b00] Precision Time Measurement
> 	Kernel driver in use: pcieport
> 
> 0000:2d:00.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 18
> 	Bus: primary=2d, secondary=2e, subordinate=2e, sec-latency=0
> 	I/O behind bridge: 00005000-00005fff [size=4K]
> 	Memory behind bridge: 6c000000-6c0fffff [size=1M]
> 	Prefetchable memory behind bridge: 0000006000000000-00000060000fffff [size=1M]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+
> 	Capabilities: [ac] Subsystem: Intel Corporation Device 0000
> 	Capabilities: [c0] Express Downstream Port (Slot+), MSI 00
> 	Capabilities: [50] Capability ID 0x15 [0000]
> 	Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00
> 	Capabilities: [200] Advanced Error Reporting
> 	Capabilities: [300] Virtual Channel
> 	Capabilities: [400] Power Budgeting <?>
> 	Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?>
> 	Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?>
> 	Capabilities: [700] Secondary PCI Express
> 	Capabilities: [900] Access Control Services
> 	Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?>
> 	Kernel driver in use: pcieport
> 
> 0000:2d:01.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 198, IOMMU group 19
> 	Bus: primary=2d, secondary=2f, subordinate=3b, sec-latency=0
> 	I/O behind bridge: [disabled]
> 	Memory behind bridge: 6c100000-700fffff [size=64M]
> 	Prefetchable memory behind bridge: 0000006000100000-00000060095fffff [size=149M]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+
> 	Capabilities: [ac] Subsystem: Intel Corporation Device 0000
> 	Capabilities: [c0] Express Downstream Port (Slot+), MSI 00
> 	Capabilities: [50] Capability ID 0x15 [0000]
> 	Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00
> 	Capabilities: [200] Advanced Error Reporting
> 	Capabilities: [300] Virtual Channel
> 	Capabilities: [400] Power Budgeting <?>
> 	Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?>
> 	Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?>
> 	Capabilities: [700] Secondary PCI Express
> 	Capabilities: [900] Access Control Services
> 	Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?>
> 	Kernel driver in use: pcieport
> 
> 0000:2d:02.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 199, IOMMU group 20
> 	Bus: primary=2d, secondary=3c, subordinate=48, sec-latency=0
> 	I/O behind bridge: [disabled]
> 	Memory behind bridge: 70100000-740fffff [size=64M]
> 	Prefetchable memory behind bridge: 0000006009600000-0000006012afffff [size=149M]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+
> 	Capabilities: [ac] Subsystem: Intel Corporation Device 0000
> 	Capabilities: [c0] Express Downstream Port (Slot+), MSI 00
> 	Capabilities: [50] Capability ID 0x15 [0000]
> 	Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00
> 	Capabilities: [200] Advanced Error Reporting
> 	Capabilities: [300] Virtual Channel
> 	Capabilities: [400] Power Budgeting <?>
> 	Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?>
> 	Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?>
> 	Capabilities: [700] Secondary PCI Express
> 	Capabilities: [900] Access Control Services
> 	Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?>
> 	Kernel driver in use: pcieport
> 
> 0000:2d:03.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 200, IOMMU group 21
> 	Bus: primary=2d, secondary=49, subordinate=55, sec-latency=0
> 	I/O behind bridge: [disabled]
> 	Memory behind bridge: 74100000-780fffff [size=64M]
> 	Prefetchable memory behind bridge: 0000006012b00000-000000601befffff [size=148M]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+
> 	Capabilities: [ac] Subsystem: Intel Corporation Device 0000
> 	Capabilities: [c0] Express Downstream Port (Slot+), MSI 00
> 	Capabilities: [50] Capability ID 0x15 [0000]
> 	Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00
> 	Capabilities: [200] Advanced Error Reporting
> 	Capabilities: [300] Virtual Channel
> 	Capabilities: [400] Power Budgeting <?>
> 	Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?>
> 	Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?>
> 	Capabilities: [700] Secondary PCI Express
> 	Capabilities: [900] Access Control Services
> 	Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?>
> 	Kernel driver in use: pcieport
> 
> 0000:2d:04.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 22
> 	Bus: primary=2d, secondary=56, subordinate=56, sec-latency=0
> 	I/O behind bridge: [disabled]
> 	Memory behind bridge: 78100000-781fffff [size=1M]
> 	Prefetchable memory behind bridge: 000000601bf00000-000000601bffffff [size=1M]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+
> 	Capabilities: [ac] Subsystem: Intel Corporation Device 0000
> 	Capabilities: [c0] Express Downstream Port (Slot+), MSI 00
> 	Capabilities: [50] Capability ID 0x15 [0000]
> 	Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00
> 	Capabilities: [200] Advanced Error Reporting
> 	Capabilities: [300] Virtual Channel
> 	Capabilities: [400] Power Budgeting <?>
> 	Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?>
> 	Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?>
> 	Capabilities: [700] Secondary PCI Express
> 	Capabilities: [900] Access Control Services
> 	Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?>
> 	Kernel driver in use: pcieport
> 
> 0000:57:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
> 	DeviceName: Realtek PCIE CardReader
> 	Subsystem: Hewlett-Packard Company Device 89db
> 	Flags: bus master, fast devsel, latency 0, IRQ 149, IOMMU group 16
> 	Memory at 86300000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: [80] Power Management version 3
> 	Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit+
> 	Capabilities: [b0] Express Endpoint, MSI 00
> 	Capabilities: [100] Advanced Error Reporting
> 	Capabilities: [148] Device Serial Number 00-00-00-01-00-4c-e0-00
> 	Capabilities: [158] Latency Tolerance Reporting
> 	Capabilities: [160] L1 PM Substates
> 	Kernel driver in use: rtsx_pci
> 	Kernel modules: rtsx_pci
> 
> 10000:e0:1d.0 PCI bridge: Intel Corporation Tiger Lake-LP PCI Express Root Port #9 (rev 30) (prog-if 00 [Normal decode])
> 	Flags: bus master, fast devsel, latency 0, IRQ 148, IOMMU group 7
> 	Bus: primary=00, secondary=e1, subordinate=e1, sec-latency=0
> 	I/O behind bridge: [disabled]
> 	Memory behind bridge: 6a000000-6a0fffff [size=1M]
> 	Prefetchable memory behind bridge: [disabled]
> 	Capabilities: [40] Express Root Port (Slot-), MSI 00
> 	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> 	Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89db
> 	Capabilities: [a0] Power Management version 3
> 	Capabilities: [100] Advanced Error Reporting
> 	Capabilities: [220] Access Control Services
> 	Capabilities: [150] Precision Time Measurement
> 	Capabilities: [200] L1 PM Substates
> 	Capabilities: [a30] Secondary PCI Express
> 	Capabilities: [a00] Downstream Port Containment
> 	Kernel driver in use: pcieport
> 
> 10000:e1:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 (prog-if 02 [NVM Express])
> 	Subsystem: Samsung Electronics Co Ltd SSD 970 EVO Plus 1TB
> 	Flags: bus master, fast devsel, latency 0, IRQ -2147483648, NUMA node 0, IOMMU group 7
> 	Memory at 6a000000 (64-bit, non-prefetchable) [size=16K]
> 	Capabilities: [40] Power Management version 3
> 	Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+
> 	Capabilities: [70] Express Endpoint, MSI 00
> 	Capabilities: [b0] MSI-X: Enable+ Count=33 Masked-
> 	Capabilities: [100] Advanced Error Reporting
> 	Capabilities: [148] Device Serial Number 00-00-00-00-00-00-00-00
> 	Capabilities: [158] Power Budgeting <?>
> 	Capabilities: [168] Secondary PCI Express
> 	Capabilities: [188] Latency Tolerance Reporting
> 	Capabilities: [190] L1 PM Substates
> 	Kernel driver in use: nvme
> 	Kernel modules: nvme
> 

-- 
Additional information about regzbot:

If you want to know more about regzbot, check out its web-interface, the
getting start guide, and the references documentation:

https://linux-regtracking.leemhuis.info/regzbot/
https://gitlab.com/knurd42/regzbot/-/blob/main/docs/getting_started.md
https://gitlab.com/knurd42/regzbot/-/blob/main/docs/reference.md

The last two documents will explain how you can interact with regzbot
yourself if your want to.

Hint for reporters: when reporting a regression it's in your interest to
CC the regression list and tell regzbot about the issue, as that ensures
the regression makes it onto the radar of the Linux kernel's regression
tracker -- that's in your interest, as it ensures your report won't fall
through the cracks unnoticed.

Hint for developers: you normally don't need to care about regzbot once
it's involved. Fix the issue as you normally would, just remember to
include 'Link:' tag in the patch descriptions pointing to all reports
about the issue. This has been expected from developers even before
regzbot showed up for reasons explained in
'Documentation/process/submitting-patches.rst' and
'Documentation/process/5.Posting.rst'.