note, as visible in the dmesg log, IO attempts with another unrelated
USB device (the USB stick ubuntu had previously booted from) failed,
causing IO errors, as the entire USB subsystem was down.
this is also why I had to submit this bug with "ubuntu-bug" prior to
actually causing the bug and
adding dmesg log of the OOOPS
note that the behavior differs from bug #1905782 on Ubuntu 18.
On Ubuntu 18 no OOPS is triggered, instead the driver enters an endless
loop when the USB device gets disconnected later
On Ubuntu 20 a kernel OOPS is generated and takes the whole USB stack
with it.
2 matches
Mail list logo
