On Tue, 2022-03-22 at 10:10 +0800, Zongmin Zhou wrote: > ⚠ External Email: This email originated from outside of the > organization. Do not click links or open attachments unless you > recognize the sender. > > Details: > When I use VirtualPS/2 VMMouse on virtual machine,There will be an > error message after resume from suspend mode. > like below: > psmouse serio1: vmmouse: Unable to re-enable mouse when reconnecting, > err: -6 > And vmmouse will be unusable,so have to do full rescan to find a > another driver to use for the port. > > This error is due to QEMU still generate PS2 events to notify kernel > driver to read from queue, > but kernel can't process the data in suspend mode, resulting a surge > of s->nb_queue value, > which ultimately led to an error getting VMMOUSE_VERSION_ID after > resume. > > Test scenario: > 1)virtual machine started with qemu command "vmport=on",it will use > VirtualPS/2 VMMouse > 2)click suspend botton to enter suspend mode > 3)resume and will get the error message from dmesg > > Fixed by: > Disabling the vmmouse in its reset handler,It will notify qemu to > stop vmmouse and remove handler. Thank you for the clarification. Looks good. Reviewed-by: Zack Rusin <zackr@xxxxxxxxxx>