"Longpeng (Mike, Cloud Infrastructure Service Product Dept.)" <longpe...@huawei.com> writes:
> We find a race during QEMU starting, which would case the QEMU process > coredump. > > <main loop> | <MON iothread> > | > [1] create MON chardev | > qemu_create_early_backends | > chardev_init_func | > | > [2] create MON iothread | > qemu_create_late_backends | > mon_init_func | > aio_bh_schedule-----------------------> monitor_qmp_setup_handlers_bh > [3] enter main loog | tcp_chr_update_read_handler > (* A client come in, e.g. Libvirt *) | update_ioc_handlers > tcp_chr_new_client | > update_ioc_handlers | > | > [4] create new hup_source | > s->hup_source = *PTR1* | > g_source_attach(s->hup_source)| > | [5] remove_hup_source(*PTR1*) > | (create new hup_source) > | s->hup_source = *PTR2* > [6] g_source_attach_unlocked | > *PTR1* is freed by [5] | > > Do you have any suggestion to fix this bug ? Thanks! Do we? We talked, but I'm not sure we reached a conclusion.
