Hi Greg,
I just updated the kernel to 5.10.15-051015-generic. (It is the
ubuntu's mainline build. I am not sure if that matters.)
The issue is still there but with a slightly different behavior. There
is still high cpu usage but the two kworkers seem to take turns.
01:18:49 AM 0 117 0.00 87.00 0.00 13.00 87.00
2 kworker/2:1+usb_hub_wq
01:18:50 AM 0 117 0.00 87.00 0.00 12.00 87.00
2 kworker/2:1+pm
The trace is now filled with:
kworker/2:1-117 [002] d... 450.048063:
workqueue_queue_work: work struct=00000000573429cf function=hub_event
workqueue=000000007b72f8bb req_cpu=8192 cpu=2
kworker/2:1-117 [002] d... 450.048097:
workqueue_queue_work: work struct=000000005facda71 function=hub_event
workqueue=000000007b72f8bb req_cpu=8192 cpu=2
kworker/2:1-117 [002] d... 450.048104:
workqueue_queue_work: work struct=0000000053de14fd
function=pm_runtime_work workqueue=00000000a24828a0 req_cpu=8192 cpu=2
kworker/2:1-117 [002] d... 450.048110:
workqueue_queue_work: work struct=00000000ffe78fd2
function=pm_runtime_work workqueue=00000000a24828a0 req_cpu=8192 cpu=2
kworker/2:1-117 [002] d... 450.048123:
workqueue_queue_work: work struct=00000000573429cf function=hub_event
workqueue=000000007b72f8bb req_cpu=8192 cpu=2
kworker/2:1-117 [002] d... 450.048157:
workqueue_queue_work: work struct=000000005facda71 function=hub_event
workqueue=000000007b72f8bb req_cpu=8192 cpu=2
kworker/2:1-117 [002] d... 450.048162:
workqueue_queue_work: work struct=0000000053de14fd
function=pm_runtime_work workqueue=00000000a24828a0 req_cpu=8192 cpu=2
kworker/2:1-117 [002] d... 450.048166:
workqueue_queue_work: work struct=00000000ffe78fd2
function=pm_runtime_work workqueue=00000000a24828a0 req_cpu=8192 cpu=2
The dmesg is similar:
[ 2798.450977] usb 1-3: USB disconnect, device number 25
[ 2798.450984] usb 1-3.1: USB disconnect, device number 26
[ 2798.452218] usb 1-3.5: USB disconnect, device number 27
[ 2798.521539] r8152 4-2.1.3:1.0 enx00e04cb5877c: Stop submitting
intr, status -71
[ 2798.587510] usb 4-2.1.4: Failed to set U1 timeout to 0x0,error code -71
[ 2798.594506] usb 4-2.1.4: Set SEL for device-initiated U1 failed.
[ 2798.601497] usb 4-2.1.4: Set SEL for device-initiated U2 failed.
[ 2798.601504] usb 4-2.1.4: usb_reset_and_verify_device Failed to disable LPM
[ 2798.677498] usb usb3-port2: over-current condition
[ 2799.209385] usb 4-2: USB disconnect, device number 2
[ 2799.209392] usb 4-2.1: USB disconnect, device number 3
[ 2799.209396] usb 4-2.1.3: USB disconnect, device number 4
[ 2799.302548] usb 4-2.1.4: USB disconnect, device number 5
[ 2799.633505] usb 4-2.1-port4: cannot disable (err = -110)
[ 2800.181325] usb usb4-port2: over-current condition
[ 2818.993944] xhci_hcd 0000:38:00.0: xHCI host controller not
responding, assume dead
[ 2818.993956] xhci_hcd 0000:38:00.0: HC died; cleaning up
[ 2819.126421] xhci_hcd 0000:38:00.0: remove, state 1
[ 2819.126431] usb usb4: USB disconnect, device number 1
[ 2819.154189] xhci_hcd 0000:38:00.0: USB bus 4 deregistered
[ 2819.154206] xhci_hcd 0000:38:00.0: remove, state 1
[ 2819.154211] usb usb3: USB disconnect, device number 1
[ 2819.154684] xhci_hcd 0000:38:00.0: Host halt failed, -19
[ 2819.154689] xhci_hcd 0000:38:00.0: Host not accessible, reset failed.
[ 2819.154900] xhci_hcd 0000:38:00.0: USB bus 3 deregistered
[ 2819.156059] pcieport 0000:03:00.0: can't change power state from
D3cold to D0 (config space inaccessible)
[ 2819.156709] pci_bus 0000:04: busn_res: [bus 04] is released
[ 2819.156776] pci_bus 0000:05: busn_res: [bus 05-37] is released
[ 2819.169419] pci_bus 0000:38: busn_res: [bus 38] is released
[ 2819.169491] pci_bus 0000:39: busn_res: [bus 39-6c] is released
[ 2819.169533] pci_bus 0000:03: busn_res: [bus 03-6c] is released
[ 2820.557517] usb 1-3: new high-speed USB device number 28 using xhci_hcd
[ 2820.708869] usb 1-3: New USB device found, idVendor=291a,
idProduct=5423, bcdDevice= 1.0a
[ 2820.708874] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2820.708876] usb 1-3: Product: 4-Port USB 2.0 Hub
[ 2820.708878] usb 1-3: Manufacturer: Generic
[ 2820.710578] hub 1-3:1.0: USB hub found
[ 2820.710816] hub 1-3:1.0: 5 ports detected
[ 2821.001436] usb 1-3.1: new high-speed USB device number 29 using xhci_hcd
[ 2821.104284] usb 1-3.1: New USB device found, idVendor=05e3,
idProduct=0610, bcdDevice= 6.55
[ 2821.104290] usb 1-3.1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 2821.104294] usb 1-3.1: Product: USB2.1 Hub
[ 2821.104296] usb 1-3.1: Manufacturer: GenesysLogic
[ 2821.108236] hub 1-3.1:1.0: USB hub found
[ 2821.108521] hub 1-3.1:1.0: 4 ports detected
[ 2821.637686] hp_wmi: Unknown event_id - 131073 - 0x0
[ 2821.693397] usb 1-3.5: new high-speed USB device number 30 using xhci_hcd
[ 2821.796169] usb 1-3.5: New USB device found, idVendor=0bda,
idProduct=5450, bcdDevice= 1.01
[ 2821.796176] usb 1-3.5: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 2821.796179] usb 1-3.5: Product: BillBoard Device
[ 2821.796182] usb 1-3.5: Manufacturer: Realtek
[ 2822.157917] hp_wmi: Unknown event_id - 131073 - 0x0
[ 2829.665791] pci 0000:02:00.0: [8086:15d3] type 01 class 0x060400
[ 2829.665874] pci 0000:02:00.0: enabling Extended Tags
[ 2829.666011] pci 0000:02:00.0: supports D1 D2
[ 2829.666012] pci 0000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 2829.666391] pci 0000:03:00.0: [8086:15d3] type 01 class 0x060400
[ 2829.666458] pci 0000:03:00.0: enabling Extended Tags
[ 2829.666613] pci 0000:03:00.0: supports D1 D2
[ 2829.666613] pci 0000:03:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 2829.666806] pci 0000:03:01.0: [8086:15d3] type 01 class 0x060400
[ 2829.666875] pci 0000:03:01.0: enabling Extended Tags
[ 2829.667024] pci 0000:03:01.0: supports D1 D2
[ 2829.667025] pci 0000:03:01.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 2829.667211] pci 0000:03:02.0: [8086:15d3] type 01 class 0x060400
[ 2829.667295] pci 0000:03:02.0: enabling Extended Tags
[ 2829.667422] pci 0000:03:02.0: supports D1 D2
[ 2829.667423] pci 0000:03:02.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 2829.667655] pci 0000:03:04.0: [8086:15d3] type 01 class 0x060400
[ 2829.667722] pci 0000:03:04.0: enabling Extended Tags
[ 2829.667868] pci 0000:03:04.0: supports D1 D2
[ 2829.667869] pci 0000:03:04.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 2829.668067] pci 0000:02:00.0: PCI bridge to [bus 03-6c]
[ 2829.668078] pci 0000:02:00.0: bridge window [mem 0xb0000000-0xde0fffff]
[ 2829.668108] pci 0000:02:00.0: bridge window [mem
0x2f90000000-0x2fd9ffffff 64bit pref]
[ 2829.668156] pci 0000:03:00.0: PCI bridge to [bus 04]
[ 2829.668184] pci 0000:03:00.0: bridge window [mem 0xde000000-0xde0fffff]
[ 2829.668241] pci 0000:03:01.0: PCI bridge to [bus 05-37]
[ 2829.668251] pci 0000:03:01.0: bridge window [mem 0xb0000000-0xc7efffff]
[ 2829.668258] pci 0000:03:01.0: bridge window [mem
0x2f90000000-0x2fafffffff 64bit pref]
[ 2829.668352] pci 0000:38:00.0: [8086:15d4] type 00 class 0x0c0330
[ 2829.668372] pci 0000:38:00.0: reg 0x10: [mem 0xc7f00000-0xc7f0ffff]
[ 2829.668444] pci 0000:38:00.0: enabling Extended Tags
[ 2829.668578] pci 0000:38:00.0: supports D1 D2
[ 2829.668579] pci 0000:38:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 2829.668699] pci 0000:38:00.0: 8.000 Gb/s available PCIe bandwidth,
limited by 2.5 GT/s PCIe x4 link at 0000:03:02.0 (capable of 31
.504 Gb/s with 8.0 GT/s PCIe x4 link)
[ 2829.668804] pci 0000:03:02.0: PCI bridge to [bus 38]
[ 2829.668815] pci 0000:03:02.0: bridge window [mem 0xc7f00000-0xc7ffffff]
[ 2829.668874] pci 0000:03:04.0: PCI bridge to [bus 39-6c]
[ 2829.668884] pci 0000:03:04.0: bridge window [mem 0xc8000000-0xddffffff]
[ 2829.668891] pci 0000:03:04.0: bridge window [mem
0x2fb0000000-0x2fd9ffffff 64bit pref]
[ 2829.668925] pci_bus 0000:03: Allocating resources
[ 2829.668942] pci 0000:03:01.0: bridge window [io 0x1000-0x0fff] to
[bus 05-37] add_size 1000
[ 2829.668943] pci 0000:03:02.0: bridge window [io 0x1000-0x0fff] to
[bus 38] add_size 1000
[ 2829.668945] pci 0000:03:02.0: bridge window [mem
0x00100000-0x000fffff 64bit pref] to [bus 38] add_size 200000
add_align 100000
[ 2829.668946] pci 0000:03:04.0: bridge window [io 0x1000-0x0fff] to
[bus 39-6c] add_size 1000
[ 2829.668947] pci 0000:02:00.0: bridge window [io 0x1000-0x0fff] to
[bus 03-6c] add_size 4000
[ 2829.668949] pci 0000:02:00.0: BAR 13: no space for [io size 0x4000]
[ 2829.668950] pci 0000:02:00.0: BAR 13: failed to assign [io size 0x4000]
[ 2829.668951] pci 0000:02:00.0: BAR 13: no space for [io size 0x4000]
[ 2829.668952] pci 0000:02:00.0: BAR 13: failed to assign [io size 0x4000]
[ 2829.668955] pci 0000:03:02.0: BAR 15: no space for [mem size
0x00200000 64bit pref]
[ 2829.668955] pci 0000:03:02.0: BAR 15: failed to assign [mem size
0x00200000 64bit pref]
[ 2829.668956] pci 0000:03:01.0: BAR 13: no space for [io size 0x1000]
[ 2829.668957] pci 0000:03:01.0: BAR 13: failed to assign [io size 0x1000]
[ 2829.668957] pci 0000:03:02.0: BAR 13: no space for [io size 0x1000]
[ 2829.668958] pci 0000:03:02.0: BAR 13: failed to assign [io size 0x1000]
[ 2829.668959] pci 0000:03:04.0: BAR 13: no space for [io size 0x1000]
[ 2829.668960] pci 0000:03:04.0: BAR 13: failed to assign [io size 0x1000]
[ 2829.668961] pci 0000:03:04.0: BAR 13: no space for [io size 0x1000]
[ 2829.668961] pci 0000:03:04.0: BAR 13: failed to assign [io size 0x1000]
[ 2829.668963] pci 0000:03:02.0: BAR 15: no space for [mem size
0x00200000 64bit pref]
[ 2829.668963] pci 0000:03:02.0: BAR 15: failed to assign [mem size
0x00200000 64bit pref]
[ 2829.668964] pci 0000:03:02.0: BAR 13: no space for [io size 0x1000]
[ 2829.668965] pci 0000:03:02.0: BAR 13: failed to assign [io size 0x1000]
[ 2829.668966] pci 0000:03:01.0: BAR 13: no space for [io size 0x1000]
[ 2829.668966] pci 0000:03:01.0: BAR 13: failed to assign [io size 0x1000]
[ 2829.668967] pci 0000:03:00.0: PCI bridge to [bus 04]
[ 2829.668973] pci 0000:03:00.0: bridge window [mem 0xde000000-0xde0fffff]
[ 2829.668996] pci 0000:03:01.0: PCI bridge to [bus 05-37]
[ 2829.669001] pci 0000:03:01.0: bridge window [mem 0xb0000000-0xc7efffff]
[ 2829.669005] pci 0000:03:01.0: bridge window [mem
0x2f90000000-0x2fafffffff 64bit pref]
[ 2829.669012] pci 0000:03:02.0: PCI bridge to [bus 38]
[ 2829.669017] pci 0000:03:02.0: bridge window [mem 0xc7f00000-0xc7ffffff]
[ 2829.669026] pci 0000:03:04.0: PCI bridge to [bus 39-6c]
[ 2829.669031] pci 0000:03:04.0: bridge window [mem 0xc8000000-0xddffffff]
[ 2829.669035] pci 0000:03:04.0: bridge window [mem
0x2fb0000000-0x2fd9ffffff 64bit pref]
[ 2829.669041] pci 0000:02:00.0: PCI bridge to [bus 03-6c]
[ 2829.669046] pci 0000:02:00.0: bridge window [mem 0xb0000000-0xde0fffff]
[ 2829.669050] pci 0000:02:00.0: bridge window [mem
0x2f90000000-0x2fd9ffffff 64bit pref]
[ 2829.670507] xhci_hcd 0000:38:00.0: xHCI Host Controller
[ 2829.670512] xhci_hcd 0000:38:00.0: new USB bus registered, assigned
bus number 3
[ 2829.671664] xhci_hcd 0000:38:00.0: hcc params 0x200077c1 hci
version 0x110 quirks 0x0000000200009810
[ 2829.671920] usb usb3: New USB device found, idVendor=1d6b,
idProduct=0002, bcdDevice= 5.10
[ 2829.671922] usb usb3: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[ 2829.671923] usb usb3: Product: xHCI Host Controller
[ 2829.671924] usb usb3: Manufacturer: Linux 5.10.15-051015-generic xhci-hcd
[ 2829.671925] usb usb3: SerialNumber: 0000:38:00.0
[ 2829.672067] hub 3-0:1.0: USB hub found
[ 2829.672077] hub 3-0:1.0: 2 ports detected
[ 2829.672818] xhci_hcd 0000:38:00.0: xHCI Host Controller
[ 2829.672822] xhci_hcd 0000:38:00.0: new USB bus registered, assigned
bus number 4
[ 2829.672824] xhci_hcd 0000:38:00.0: Host supports USB 3.1 Enhanced SuperSpeed
[ 2829.672850] usb usb4: New USB device found, idVendor=1d6b,
idProduct=0003, bcdDevice= 5.10
[ 2829.672851] usb usb4: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[ 2829.672851] usb usb4: Product: xHCI Host Controller
[ 2829.672852] usb usb4: Manufacturer: Linux 5.10.15-051015-generic xhci-hcd
[ 2829.672853] usb usb4: SerialNumber: 0000:38:00.0
[ 2829.672977] hub 4-0:1.0: USB hub found
[ 2829.672985] hub 4-0:1.0: 2 ports detected
[ 2830.113812] usb 4-2: new SuperSpeedPlus Gen 2 USB device number 2
using xhci_hcd
[ 2830.137150] usb 4-2: New USB device found, idVendor=2900,
idProduct=8383, bcdDevice= 1.0a
[ 2830.137159] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2830.137165] usb 4-2: Product: 4-Port USB 3.0 Hub
[ 2830.137170] usb 4-2: Manufacturer: Generic
[ 2830.139872] hub 4-2:1.0: USB hub found
[ 2830.140153] hub 4-2:1.0: 4 ports detected
[ 2830.429717] usb 4-2.1: new SuperSpeed Gen 1 USB device number 3
using xhci_hcd
[ 2830.453599] usb 4-2.1: New USB device found, idVendor=05e3,
idProduct=0626, bcdDevice= 6.55
[ 2830.453606] usb 4-2.1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 2830.453610] usb 4-2.1: Product: USB3.1 Hub
[ 2830.453613] usb 4-2.1: Manufacturer: GenesysLogic
[ 2830.456109] hub 4-2.1:1.0: USB hub found
[ 2830.456457] hub 4-2.1:1.0: 4 ports detected
[ 2830.745598] usb 4-2.1.4: new SuperSpeed Gen 1 USB device number 4
using xhci_hcd
[ 2830.767264] usb 4-2.1.4: New USB device found, idVendor=058f,
idProduct=8468, bcdDevice= 1.00
[ 2830.767266] usb 4-2.1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 2830.767267] usb 4-2.1.4: Product: Mass Storage Device
[ 2830.767267] usb 4-2.1.4: Manufacturer: Generic
[ 2830.767268] usb 4-2.1.4: SerialNumber: 058F84688461
[ 2830.769494] usb-storage 4-2.1.4:1.0: USB Mass Storage device detected
[ 2830.769683] scsi host4: usb-storage 4-2.1.4:1.0
[ 2831.794370] scsi 4:0:0:0: Direct-Access Generic- SD/MMC
1.00 PQ: 0 ANSI: 6
[ 2831.794831] scsi 4:0:0:1: Direct-Access Generic- Micro SD/M2
1.08 PQ: 0 ANSI: 6
[ 2831.795344] sd 4:0:0:0: Attached scsi generic sg0 type 0
[ 2831.795741] sd 4:0:0:1: Attached scsi generic sg1 type 0
[ 2831.846323] sd 4:0:0:0: [sda] Attached SCSI removable disk
[ 2831.847114] sd 4:0:0:1: [sdb] Attached SCSI removable disk
Thanks
Yiyu Zhu
On Wed, Feb 10, 2021 at 10:47 PM Greg KH <greg@xxxxxxxxx> wrote:
>
> On Wed, Feb 10, 2021 at 06:31:56PM -0800, Yiyu Zhu wrote:
> > Hi,
> >
> > I have an Anker A8383 USB C hub with power delivery. I use the hub for
> > both charging and connecting to network. But when I unplug the hub, it
> > sometimes causes two kworker processes to occupy 100 % cpu time.
> > The issue will go away if I plug something back into the usbc port.
> > And the issue seems to persist through reboot.
> >
> > I am running kernel version 5.8.0-43-generic #49~20.04.1-Ubuntu SMP
>
> That is a very old kernel, and a distro-specific one. Please try the
> latest 5.10.y release, or report the problem to Ubuntu as they are the
> only ones that can support that unknown kernel.
>
> good luck!
>
> greg k-h
