On 10/06/19 16:51, l00284672 wrote: > The pread will hang in attaching disk just when backend storage network > disconnection .
Would the "open" hang as well in that case? > I think the locking range of qemu_global_mutex is too large when do qmp > operation. what > does the qemu_global_mutex really protect? Basically everything. > what is the risk of unlocking qemu_global_mutex in qmp? It's not QMP; it's specifically the code that calls raw_probe_alignment. Paolo
