On 04/07/2016 21:53, Gerd Hoffmann wrote: > Hi, > >>>> What about graphics threads ? In particular I'd be thinking of spice >>>> which uses threads and chardevs. >>> >>> I think it should be quiesced after pause_all_vcpus returns. Marc-André >>> should know, but it's better to check with Gerd. >> >> In theory, spice_server_vm_stop() should be called at this point, > > Yes, that should handle the qxl worker thread. > >> and all chardev in spice are stopped too there, as well as the qxl >> worker processing thread (although the thread is not joined here >> neither..). > > The chardevs are handled in iothread context anyway, so I don't think > they need any special care.
Writes to chardevs can be done from non-iothread threads, but SPICE doesn't do that. Paolo
