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SubjectRe: Regression in 5.19.0: USB errors during boot
From
[TLDR: I'm adding this regression report to the list of tracked
regressions; all text from me you find below is based on a few templates
paragraphs you might have encountered already already in similar form.]

On 18.08.22 16:36, Alan J. Wylie wrote:
>
> Apologies for the delay in reporting this: I messed up my first attempt at
> bisecting, then I've spent a week going to, enjoying, returning from and
> recovering from a music festival.
>
> Up to and including 5.18.18 things are fine. With 5.19.0 (and .1 and .2) I see
> lots of errors and hangs on the USB2 chipset, e.g.
>
> $ grep "usb 9-4" dmesg.5.19.2
> [ 6.669075] usb 9-4: new full-speed USB device number 2 using ohci-pci
> [ 6.829087] usb 9-4: device descriptor read/64, error -32
> [ 7.097094] usb 9-4: device descriptor read/64, error -32
> [ 7.361087] usb 9-4: new full-speed USB device number 3 using ohci-pci
> [ 7.521152] usb 9-4: device descriptor read/64, error -32
> [ 7.789066] usb 9-4: device descriptor read/64, error -32
> [ 8.081070] usb 9-4: new full-speed USB device number 4 using ohci-pci
> [ 8.497138] usb 9-4: device not accepting address 4, error -32
> [ 8.653140] usb 9-4: new full-speed USB device number 5 using ohci-pci
> [ 9.069141] usb 9-4: device not accepting address 5, error -32
> $
>
> $ grep "usb 1-2" dmesg.5.19.2
> [ 5.917102] usb 1-2: new high-speed USB device number 2 using ehci-pci
> [ 6.277076] usb 1-2: device descriptor read/64, error -71
> [ 6.513143] usb 1-2: device descriptor read/64, error -32
> [ 6.753146] usb 1-2: new high-speed USB device number 3 using ehci-pci
> [ 6.881143] usb 1-2: device descriptor read/64, error -32
> [ 7.117144] usb 1-2: device descriptor read/64, error -32
> [ 7.429141] usb 1-2: new high-speed USB device number 4 using ehci-pci
> [ 7.845134] usb 1-2: device not accepting address 4, error -32
> [ 7.977142] usb 1-2: new high-speed USB device number 5 using ehci-pci
> [ 8.393158] usb 1-2: device not accepting address 5, error -32
> $
>
> the USB port is then no longer usable
>
> This is not reproducible on the other chipset (USB3) on this machine,
> nor on two other systems. Swapping USB cables doesn't help.
>
> I have bisected it to
>
> $ git bisect bad
> 78013eaadf696d2105982abb4018fbae394ca08f is the first bad commit
> commit 78013eaadf696d2105982abb4018fbae394ca08f
> Author: Christoph Hellwig <hch@lst.de>
> Date: Mon Feb 14 14:11:44 2022 +0100
>
> x86: remove the IOMMU table infrastructure
>
> however it will not easily revert
>
> I'll be more than happy to assist with any debugging/testing.
>
> $ git revert 78013eaadf696d2105982abb4018fbae394ca08f
> Auto-merging arch/x86/include/asm/dma-mapping.h
> CONFLICT (content): Merge conflict in arch/x86/include/asm/dma-mapping.h
> Auto-merging arch/x86/include/asm/iommu.h
> Auto-merging arch/x86/include/asm/xen/swiotlb-xen.h
> Auto-merging arch/x86/kernel/Makefile
> Auto-merging arch/x86/kernel/pci-dma.c
> CONFLICT (content): Merge conflict in arch/x86/kernel/pci-dma.c
> Auto-merging arch/x86/kernel/vmlinux.lds.S
> Auto-merging drivers/iommu/amd/init.c
> Auto-merging drivers/iommu/amd/iommu.c
> CONFLICT (content): Merge conflict in drivers/iommu/amd/iommu.c
> Auto-merging drivers/iommu/intel/dmar.c
> error: could not revert 78013eaadf69... x86: remove the IOMMU table infrastructure
>
> # dmidecode | grep -A2 "^Base Board"
> Base Board Information
> Manufacturer: Gigabyte Technology Co., Ltd.
> Product Name: 970A-DS3P
> #
>
> # lspci -nn | grep -i usb
> 00:12.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397]
> 00:12.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]
> 00:13.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397]
> 00:13.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]
> 00:14.5 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI2 Controller [1002:4399]
> 00:16.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397]
> 00:16.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]
> 02:00.0 USB controller [0c03]: VIA Technologies, Inc. VL805/806 xHCI USB 3.0 Controller [1106:3483] (rev 01)
> #
>
> # lspci -v -s 00:12
> 00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
> Subsystem: Gigabyte Technology Co., Ltd GA-880GMA-USB3
> Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 18
> Memory at fe50a000 (32-bit, non-prefetchable) [size=4K]
> Kernel driver in use: ohci-pci
> Kernel modules: ohci_pci
> 00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
> Subsystem: Gigabyte Technology Co., Ltd GA-880GMA-USB3
> Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 17
> Memory at fe509000 (32-bit, non-prefetchable) [size=256]
> Capabilities: [c0] Power Management version 2
> Capabilities: [e4] Debug port: BAR=1 offset=00e0
> Kernel driver in use: ehci-pci
> Kernel modules: ehci_pci
> #
>
> # lsusb
> Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 009 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port / Mobile Action MA-8910P
> Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 007 Device 002: ID 03f0:0317 HP, Inc LaserJet 1200
> Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 002: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy A5 (MTP)
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 002 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> #
>
> $ git bisect log
> git bisect start
> # good: [4b0986a3613c92f4ec1bdc7f60ec66fea135991f] Linux 5.18
> git bisect good 4b0986a3613c92f4ec1bdc7f60ec66fea135991f
> # good: [07e0b709cab7dc987b5071443789865e20481119] Linux 5.18.18
> git bisect good 07e0b709cab7dc987b5071443789865e20481119
> # bad: [3d7cb6b04c3f3115719235cc6866b10326de34cd] Linux 5.19
> git bisect bad 3d7cb6b04c3f3115719235cc6866b10326de34cd
> # bad: [c011dd537ffe47462051930413fed07dbdc80313] Merge tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> git bisect bad c011dd537ffe47462051930413fed07dbdc80313
> # good: [7e062cda7d90543ac8c7700fc7c5527d0c0f22ad] Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
> git bisect good 7e062cda7d90543ac8c7700fc7c5527d0c0f22ad
> # good: [f8122500a039abeabfff41b0ad8b6a2c94c1107d] Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
> git bisect good f8122500a039abeabfff41b0ad8b6a2c94c1107d
> # good: [2518f226c60d8e04d18ba4295500a5b0b8ac7659] Merge tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm
> git bisect good 2518f226c60d8e04d18ba4295500a5b0b8ac7659
> # good: [f7a344468105ef8c54086dfdc800e6f5a8417d3e] ASoC: max98090: Move check for invalid values before casting in max98090_put_enab_tlv()
> git bisect good f7a344468105ef8c54086dfdc800e6f5a8417d3e
> # good: [fbe86daca0ba878b04fa241b85e26e54d17d4229] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
> git bisect good fbe86daca0ba878b04fa241b85e26e54d17d4229
> # good: [709c8632597c3276cd21324b0256628f1a7fd4df] xfs: rework deferred attribute operation setup
> git bisect good 709c8632597c3276cd21324b0256628f1a7fd4df
> # bad: [babf0bb978e3c9fce6c4eba6b744c8754fd43d8e] Merge tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
> git bisect bad babf0bb978e3c9fce6c4eba6b744c8754fd43d8e
> # bad: [8b728edc5be161799434cc17e1279db2f8eabe29] Merge tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
> git bisect bad 8b728edc5be161799434cc17e1279db2f8eabe29
> # bad: [3f70356edf5611c28a68d8d5a9c2b442c9eb81e6] swiotlb: merge swiotlb-xen initialization into swiotlb
> git bisect bad 3f70356edf5611c28a68d8d5a9c2b442c9eb81e6
> # good: [f39f8d0eb081407e470396fd4cc376c526d13066] MIPS/octeon: use swiotlb_init instead of open coding it
> git bisect good f39f8d0eb081407e470396fd4cc376c526d13066
> # bad: [c6af2aa9ffc9763826607bc2664ef3ea4475ed18] swiotlb: make the swiotlb_init interface more useful
> git bisect bad c6af2aa9ffc9763826607bc2664ef3ea4475ed18
> # bad: [a3e230926708125205ffd06d3dc2175a8263ae7e] x86: centralize setting SWIOTLB_FORCE when guest memory encryption is enabled
> git bisect bad a3e230926708125205ffd06d3dc2175a8263ae7e
> # bad: [78013eaadf696d2105982abb4018fbae394ca08f] x86: remove the IOMMU table infrastructure
> git bisect bad 78013eaadf696d2105982abb4018fbae394ca08f
> # first bad commit: [78013eaadf696d2105982abb4018fbae394ca08f] x86: remove the IOMMU table infrastructure
> $

Thanks for the report. 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 78013eaadf696d2105982abb4018fbae394ca08
#regzbot title dma/iommu/gart/usb: USB errors during boot
#regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply -- ideally with also
telling regzbot about it, as explained here:
https://linux-regtracking.leemhuis.info/tracked-regression/

Reminder for developers: When fixing the issue, add 'Link:' tags
pointing to the report (the mail this one replies to), as explained for
in the Linux kernel's documentation; above webpage explains why this is
important for tracked regressions.

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

P.S.: As the Linux kernel's regression tracker I deal with a lot of
reports and sometimes miss something important when writing mails like
this. If that's the case here, don't hesitate to tell me in a public
reply, it's in everyone's interest to set the public record straight.

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