https://bugzilla.kernel.org/show_bug.cgi?id=199035 Szymon (sobik.szymon@xxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sobik.szymon@xxxxxxxxx --- Comment #7 from Szymon (sobik.szymon@xxxxxxxxx) --- I use ubuntu 18.04 with 4.15 kernel I have hit the same problem, but with synaptics touchpad. I have bisected 4.13-4.14 and the problem was in commit 1455cf8dbfd06aa7651dcfccbadb7a093944ca65 (as in the attached patch) I am unable to use USB bus because udev is bogged down with these bind/unbind events ``` UDEV [496.168312] bind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) KERNEL[496.175932] bind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) KERNEL[496.176947] unbind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) UDEV [496.177602] unbind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) KERNEL[496.185259] bind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) KERNEL[496.185479] unbind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) UDEV [496.186342] bind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) KERNEL[496.196813] bind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) KERNEL[496.197103] unbind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) UDEV [496.197501] unbind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) KERNEL[496.207283] bind /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.2/2-1.4.2:1.0 (usb) ``` ``` > cat /sys/bus/usb/devices/2-1.4/2-1.4.2/id* 8162 413c ``` ``` > lsusb -d 413c:8162 Bus 002 Device 006: ID 413c:8162 Dell Computer Corp. Integrated Touchpad [Synaptics] ``` -- You are receiving this mail because: You are the assignee for the bug.
