On Mo, 2013-11-11 at 18:47 +0100, Paolo Bonzini wrote: > Il 11/11/2013 18:13, Peter Maydell ha scritto: > >> > That said, aren't all signals in QEMU (except SIG_IPI) caught with > >> > signalfd and the handlers run synchronously in the iothread? > > Eric specifically points out one which is not. > > (I'm pretty sure that 'reinstall signal handler at > > end of signal handler' is ancient voodoo that we don't > > want either, incidentally.) > > Yeah, I was convinced it was---I still cannot find a reason why SIGWINCH > needs to be handled synchronously.
There is zero need. And changing that is actually the correct fix IMHO: Just set a flag in the signal handler (i.e. no syscalls which then could corrupt errno), then handle it the next time we update the screen. cheers, Gerd
