https://bugzilla.kernel.org/show_bug.cgi?id=215740 --- Comment #9 from Ferry Toth (ferry.toth@xxxxxxxxxxxx) --- Ok, it's different then in #6 above. smsc95xx behaves as a 5p hub, with an usb to ethernet adapter plugged into 1 port. So, 4 ports remain available to the user. The bug itself is likely located in hub.c. I can reproduce this with an ordinary 7p hub (EVB USB2517). Plugging the hub causes no issues. Then plugging an usb device (in my case I just plugged a mouse) into a port triggers the "cacheline tracking EEXIST". The warning occurs only once (regardless unplugging the device or the hub). Note that on Ubuntu 23.10 the warning does not occur, but they have most debug options not set. So, likely this is an old bug that has gone undetected for a long while. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
