https://bugzilla.kernel.org/show_bug.cgi?id=210015 Bug ID: 210015 Summary: page allocation failure in usb_hub_wq hub_event when adding HID device Product: Drivers Version: 2.5 Kernel Version: 5.8.16-300.fc33.x86_64 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: jadahl@xxxxxxxxx Regression: No Created attachment 293411 --> https://bugzilla.kernel.org/attachment.cgi?id=293411&action=edit journal -k during the error When docking my laptop (Lenovo T470s, to a traditional docking station), running 5.8.16-300.fc33.x86_64, sometimes (every other time or so), the kernel runs into a page allocation failure when adding one of the HID device associated with the USB keyboard attached to the docking station. When this does *not* happen, three evdev devices appear for the keyboard: /dev/input/event11: TypeMatrix.com USB Keyboard /dev/input/event12: TypeMatrix.com USB Keyboard System Control /dev/input/event13: TypeMatrix.com USB Keyboard Consumer Control The third device emits events such as Volume Up, Volume Down etc. The first emits events such as regular A-Z keys. Available HID devices are /dev/hidraw3: TypeMatrix.com USB Keyboard /dev/hidraw4: TypeMatrix.com USB Keyboard The first emits A-Z keys etc, while the second emits Volume up/down etc. When the page allocation failure happens, the raw HID devices remain the same and functioning, but the only evdev devices that appear are event11 and event12, missing event13, thus missing Volume up/down events. Replugging the keyboard enough times will make it work correctly again, most of the times. I'm attaching a journal -k for when it happens, containing the backtrace to the page allocation failure. -- You are receiving this mail because: You are watching the assignee of the bug.
