On Tue, Sep 16, 2014 at 06:50:38PM +0300, Chrysostomos Nanakos wrote: > On Tue, Sep 16, 2014 at 05:45:16PM +0200, Paolo Bonzini wrote: > > Il 16/09/2014 17:43, Chrysostomos Nanakos ha scritto: > > >> > error_propagate(errp, local_error); > > >> > return; > > > Just to note that after propagating the error and returning, QEMU fails > > > silently without printing the error message. > > > > What is your testcase? > > I am starting QEMU with the options below and explicitly set iothread->ctx to > NULL. Is that ok as a testcase or should I reduce my open files limit to > produce the error? > > qemu --enable-kvm -smp 2 -m 1024 -object iothread,id=iothread0 -drive > file=archipelago:fedora_stable > -vnc 0.0.0.0:0 -qmp tcp:127.0.0.1:8888,server,nowait > > No error message, at least the propagated one, fails silently. > The segfault is caused when QOM tries to object_unref() the iothread object, type->instance_finalize(obj) is called which calls the registered iothread_instance_finalize function. A check there for the iothread->ctx seems to solve the problem.
I will include the fix in the next patch series. Regards, Chrysostomos.
