Re: xhci: WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.

Paul Menzel
2025-04-05T07:36:34Z

Dear Michał,

Thank you for looking into this.

Am 05.04.25 um 08:43 schrieb Michał Pecio:

> On Thu, 3 Apr 2025 20:02:05 +0200, Paul Menzel wrote:
>> Just a heads-up, that connecting an LMP USB-C mini Dock [1] to the
>> Intel Kaby Lake Dell XPS 13 9360 with
>>
>> 00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller [8086:9d2f] (rev 21)
>
> This is not the USB bus generating that noise.

You are right. It is probably:

39:00.0 USB controller [0c03]: Intel Corporation DSL6340 USB 3.1
Controller [Alpine Ridge] [8086:15b5]

Please find the full output of `lspci -nn` attached.

> And the problem appears to be that some USB device gets reset
> periodically, probably /dev/sda, whatever it is. This reset loop is
> also visible in your new log today.
I guess it’s the SD/eMMC card slot, which I do not use though.

> The warning appears to be connected to that, and the suspend problem
> may also be if some mutex stays locked for more than 20s as a result.
>
> Could you check:
> 1. what exact USB device is getting reset?

How do I found out? (Excuse my ignorance, I do not even knew the warning
is related to resets.)

> 2. is it reproducible on master? (seems so)

Yes.

> 3. is it reproducible on 6.14, 6.13, ...

As written, from my logs it happened sporadically in the past, but since
at least commit a2cc6ff5ec8f it happens almost always. I didn’t see it
with commit 08733088b566, and after that I didn’t use any USB-C adapters
for three days.

Kind regards,

Paul

PS: Hints on how to try to reproduce this in QEMU would be welcome.
(Passing the controller and device to the VM.)

>> [ 74.898485] usb 4-1.4: reset SuperSpeed USB device number 5 using xhci_hcd
>> [ 74.916241] sd 0:0:0:0: [sda] Media removed, stopped polling
>> [ 74.916634] sd 0:0:0:0: [sda] Attached SCSI removable disk
>> [ 98.803081] PM: suspend entry (deep)
>> [ 98.813999] Filesystems sync: 0.010 seconds
>> [ 98.819226] Freezing user space processes
>> [ 105.534176] xhci_hcd 0000:39:00.0: WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.
>> [ 105.606437] usb 4-1.4: reset SuperSpeed USB device number 5 using xhci_hcd
>> [ 118.822270] Freezing user space processes failed after 20.003 seconds (2 tasks refusing to freeze, wq_busy=0):
>> [ 118.822281] task:systemd-journal state:D stack:0 pid:474 tgid:474 ppid:1 task_flags:0x400100 flags:0x00000006
>> [ 118.822285] Call Trace:
>> [ 118.822287] <TASK>
>> [ 118.822291] __schedule+0x537/0xbb0
>> [ 118.822297] schedule+0x27/0xd0
>> [ 118.822300] schedule_preempt_disabled+0x15/0x20
>> [ 118.822302] __mutex_lock.constprop.0+0x4b4/0x890
>> [ 118.822306] uevent_show+0x99/0x150
>> [ 118.822309] dev_attr_show+0x19/0x40
>> [ 118.822312] sysfs_kf_seq_show+0xcd/0x110
>> [ 118.822315] seq_read_iter+0x116/0x400
>> [ 118.822318] vfs_read+0x299/0x360
>> [ 118.822321] ksys_read+0x6b/0xe0
>> [ 118.822323] do_syscall_64+0x82/0x9b0
>> [ 118.822327] ? arch_exit_to_user_mode_prepare.isra.0+0x16/0x90
>> [ 118.822331] ? syscall_exit_to_user_mode+0x37/0x1a0
>> [ 118.822333] ? do_syscall_64+0x8e/0x9b0
>> [ 118.822336] ? __memcg_slab_free_hook+0xf9/0x140
>> [ 118.822339] ? __x64_sys_close+0x3d/0x80
>> [ 118.822341] ? kmem_cache_free+0x236/0x460
>> [ 118.822344] ? arch_exit_to_user_mode_prepare.isra.0+0x16/0x90
>> [ 118.822346] ? syscall_exit_to_user_mode+0x37/0x1a0
>> [ 118.822348] ? do_syscall_64+0x8e/0x9b0Dez 21 10:22:08 abreu

$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen
Core Processor Host Bridge/DRAM Registers [8086:5904] (rev 02)
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics
620 [8086:5916] (rev 02)
00:04.0 Signal processing controller [1180]: Intel Corporation Xeon
E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem
[8086:1903] (rev 02)
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB
3.0 xHCI Controller [8086:9d2f] (rev 21)
00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise
Point-LP Thermal subsystem [8086:9d31] (rev 21)
00:15.0 Signal processing controller [1180]: Intel Corporation Sunrise
Point-LP Serial IO I2C Controller #0 [8086:9d60] (rev 21)
00:15.1 Signal processing controller [1180]: Intel Corporation Sunrise
Point-LP Serial IO I2C Controller #1 [8086:9d61] (rev 21)
00:16.0 Communication controller [0780]: Intel Corporation Sunrise
Point-LP CSME HECI #1 [8086:9d3a] (rev 21)
00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI
Express Root Port #1 [8086:9d10] (rev f1)
00:1c.4 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI
Express Root Port #5 [8086:9d14] (rev f1)
00:1c.5 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI
Express Root Port #6 [8086:9d15] (rev f1)
00:1d.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI
Express Root Port #9 [8086:9d18] (rev f1)
00:1f.0 ISA bridge [0601]: Intel Corporation Sunrise Point-LP LPC
Controller [8086:9d58] (rev 21)
00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-LP PMC
[8086:9d21] (rev 21)
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD Audio
[8086:9d71] (rev 21)
00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus
[8086:9d23] (rev 21)
01:00.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3
Bridge [Alpine Ridge 2C 2015] [8086:1576]
02:00.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3
Bridge [Alpine Ridge 2C 2015] [8086:1576]
02:01.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3
Bridge [Alpine Ridge 2C 2015] [8086:1576]
02:02.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3
Bridge [Alpine Ridge 2C 2015] [8086:1576]
39:00.0 USB controller [0c03]: Intel Corporation DSL6340 USB 3.1
Controller [Alpine Ridge] [8086:15b5]
3a:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac
Wireless Network Adapter [168c:003e] (rev 32)
3b:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A
PCI Express Card Reader [10ec:525a] (rev 01)
3c:00.0 Non-Volatile memory controller [0108]: SK hynix PC300 NVMe Solid
State Drive 512GB [1c5c:1284]

$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0cf3:e300 Qualcomm Atheros Communications QCA61x4
Bluetooth 4.0
Bus 001 Device 003: ID 04f3:2234 Elan Microelectronics Corp. Touchscreen
Bus 001 Device 004: ID 0c45:670c Microdia Integrated Webcam HD
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 2109:2817 VIA Labs, Inc. USB2.0 Hub
Bus 003 Device 003: ID 2109:2817 VIA Labs, Inc. USB2.0 Hub
Bus 003 Device 005: ID 2109:8817 VIA Labs, Inc. USB Billboard Device
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 002: ID 2109:0817 VIA Labs, Inc. USB3.0 Hub
Bus 004 Device 003: ID 2109:0817 VIA Labs, Inc. USB3.0 Hub
Bus 004 Device 004: ID 058f:8468 Alcor Micro Corp. Mass Storage Device
Bus 004 Device 005: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153
Gigabit Ethernet Adapter