Ubuntu
linux-hwe-5.4 package

bmc virtual usb keyboard/mouse can't be detected when resting bmc

Bug #2008050 reported by Zhanglei Mao
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-hwe-5.4 (Ubuntu)
New
Undecided
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Bug Description

In zte server, when reseting bmc or reload virtual keyboard/mouse driver in BMC, the keyboard/mouse on KVM will be hanged, it can resume working after reboot host OS which is Ubuntu 20.04 ga-kernel.

This wouldn't happen on CentOS with kernel of 3.10.0-1160.317.x86_64, the keyboard/mouse of KVM keeps working when resting ibm.

Revision history for this message
Zhanglei Mao (zhanglei-mao) wrote :

During testing, we can found disconnect log in dmesg and not plugin/connect info:

Feb 19 21:14:16 sysadmin kernel: [ 1156.328006] usb 1-7.1: USB disconnect, device number 3
Feb 19 21:17:01 sysadmin CRON[6201]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Feb 19 21:22:15 sysadmin systemd-sysctl[1446]: Not setting net/ipv4/conf/all/promote_secondaries (explicit setting exists).
Feb 19 21:22:15 sysadmin systemd-sysctl[1446]: Not setting net/ipv4/conf/default/promote_secondaries (explicit setting exists).
Feb 19 21:22:15 sysadmin kernel: [ 0.000000] Linux version 5.4.0-26-generic (buildd@lcy01-amd64-029) (gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)) #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 (Ubuntu 5.4.0-26.30-generic 5.4.30)

Revision history for this message
Zhanglei Mao (zhanglei-mao) wrote :

The dmesg for virutal keyboad/mouse when reset os:

Feb 19 20:55:17 sysadmin kernel: [ 4.904530] usb 1-7.1: New USB device found, idVendor=046b, idProduct=ff10, bcdDevice= 1.00
Feb 19 20:55:17 sysadmin kernel: [ 4.904955] usb 1-7.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Feb 19 20:55:17 sysadmin kernel: [ 4.905370] usb 1-7.1: Product: Virtual Keyboard and Mouse
Feb 19 20:55:17 sysadmin kernel: [ 4.905779] usb 1-7.1: Manufacturer: American Megatrends Inc.
Feb 19 20:55:17 sysadmin kernel: [ 4.916508] nouveau 0000:17:00.0: fb: 15360 MiB GDDR6
Feb 19 20:55:17 sysadmin kernel: [ 4.917164] hidraw: raw HID events driver (C) Jiri Kosina
Feb 19 20:55:17 sysadmin kernel: [ 4.922070] usbcore: registered new interface driver usbhid
Feb 19 20:55:17 sysadmin kernel: [ 4.922534] usbhid: USB HID core driver
Feb 19 20:55:17 sysadmin kernel: [ 4.924758] input: American Megatrends Inc. Virtual Keyboard and Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.1/1-7.1:1.0/0003:046B:FF10.
0001/input/input1
Feb 19 20:55:17 sysadmin kernel: [ 4.925350] nouveau 0000:17:00.0: DRM: VRAM: 15360 MiB
Feb 19 20:55:17 sysadmin kernel: [ 4.925677] hid-generic 0003:046B:FF10.0001: input,hidraw0: USB HID v1.10 Keyboard [American Megatrends Inc. Virtual Keyboard and Mouse] on usb-000
0:00:14.0-7.1/input0
Feb 19 20:55:17 sysadmin kernel: [ 4.926066] nouveau 0000:17:00.0: DRM: GART: 536870912 MiB
Feb 19 20:55:17 sysadmin kernel: [ 4.927045] input: American Megatrends Inc. Virtual Keyboard and Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.1/1-7.1:1.1/0003:046B:FF10.
0002/input/input2

Revision history for this message
Zhanglei Mao (zhanglei-mao) wrote :
Download full text (4.3 KiB)

We also tested virtual CD, it seems worked fine. Below is udevadm monitor output:

KERNEL[310.544164] unbind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
KERNEL[310.544206] remove /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
KERNEL[310.544691] unbind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
KERNEL[310.544737] remove /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
UDEV [310.545677] unbind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
UDEV [310.546176] remove /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
UDEV [310.547452] unbind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
UDEV [310.547917] remove /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
KERNEL[324.302442] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
KERNEL[324.303754] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
KERNEL[324.304074] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14 (scsi)
KERNEL[324.304193] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/scsi_host/host14 (scsi_host)
KERNEL[324.304238] bind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
KERNEL[324.304384] bind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
UDEV [324.306827] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
UDEV [324.308683] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
UDEV [324.309922] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14 (scsi)
UDEV [324.311232] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/scsi_host/host14 (scsi_host)
UDEV [324.312534] bind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0 (usb)
UDEV [324.314064] bind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3 (usb)
KERNEL[325.337392] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0 (scsi)
KERNEL[325.337466] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0/14:0:0:0 (scsi)
UDEV [325.338773] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0 (scsi)
UDEV [325.340412] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0/14:0:0:0 (scsi)
KERNEL[325.388105] add /devices/virtual/bdi/11:0 (bdi)
KERNEL[325.388215] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0/14:0:0:0/block/sr0 (block)
UDEV [325.388841] add /devices/virtual/bdi/11:0 (bdi)
KERNEL[325.389407] add /kernel/slab/bdev_cache/cgroup/bdev_cache(310:systemd-udevd.service) (cgroup)
KERNEL[325.389936] bind /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0/14:0:0:0 (scsi)
KERNEL[325.389997] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0/14:0:0:0/scsi_device/14:0:0:0 (scsi_device)
KERNEL[325.390106] add /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7.3/1-7.3:1.0/host14/target14:0:0/14:0:0:0/scsi_generic/sg7 (scsi_generic)
UDEV [325.390135] add /ker...

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Revision history for this message
Zhanglei Mao (zhanglei-mao) wrote :

Tried to reload hid and xhci_pic and seems no chance too

Revision history for this message
Zhanglei Mao (zhanglei-mao) wrote :

Summary for more testing results from zte:
1. All works for 20.04.2-20.4.5 hwe-kernel(v5.8.0-41, v5.11.0-27, v5.13.0-30, v5.15.0-46), which we tested boot from iso.

2. It works too if we detach KVM (close browser)before reset BMC.

3. After reset BMC, to unbind "echo '1-7' | sudo tee /sys/bus/usb/drivers/usb/unbind" virtual hub, open KVM can work too.

Revision history for this message
Zhanglei Mao (zhanglei-mao) wrote :

We tested on 20.4.5 iso ga-kernel and the lasted kernel of linux-image-5.4.0-144-generic_5.4.0-144.161_amd64.deb and both them works too.

So this issues have been fixed both on 20.04 ga-kernel and hwe-kernel.

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