On 20 February 2013 14:43, Laszlo Ersek <ler...@redhat.com> wrote: > On 02/20/13 14:43, Paolo Bonzini wrote: >> QEMU system emulation has been thread-safe for a long time
Says who? cpu_interrupt() calls tcg_handle_interrupt() which calls cpu_unlink_tb() which makes changes to the TB datastructure with no kind of locking at all. I'm actually working on a patchset which fixes this (by having every TCG TB check the exit_request flag at the start and exit if set, so we can throw out cpu_unlink_tb() entirely), but as of right now the codebase is definitely not threadsafe. -- PMM
