On 01/04/2015 05:34, Alexandre DERUMIER wrote: > > I'm currently testing virtio-scsi and iothread, > > and I'm seeing qemu segfault when I try to remove an scsi drive > on top of an virtio-scsi controller with iothread enabled. > > > virtio-blk + iothread drive_del is supported since this patch > > http://comments.gmane.org/gmane.comp.emulators.qemu/291562 > "block: support drive_del with dataplane > > This series makes hot unplug work with virtio-blk dataplane devices. It > should > also work with Fam's virtio-scsi dataplane patches."
virtio-scsi + iothread is experimental and not yet thread-safe. Deadlocks or crashes are expected, and not really fixable without a lot of preparatory changes to core QEMU code. These are being done, but I don't expect it to be fixed before 2.5. Paolo
