graphic: 0.757 device: 0.725 performance: 0.675 debug: 0.451 files: 0.419 semantic: 0.357 permissions: 0.272 PID: 0.158 vnc: 0.154 boot: 0.138 socket: 0.031 network: 0.021 other: 0.014 KVM: 0.001 Data Race in assertion in aio-posix.c Description of problem: Potential data races in the assertion in `test-aio-multithread` were identified using TSAN. Steps to reproduce: ```sh QEMU_BUILD_DIR= QEMU_DIR= configure --enable-tsan --cc=clang --cxx=clang++ --enable-trace-backends=ust --enable-fdt=system --disable-slirp make tests/unit/test-bdrv-drain MALLOC_PERTURB_=102 G_TEST_SRCDIR=$QEMU_BUILD_DIR/tests/unit G_TEST_BUILDDIR=$QEMU_BUILD_DIR/tests/unit $QEMU_BUILD_DIR/tests/unit/test-aio-multithread --tap -k ```