Re: [libvirt] [PATCH 3/3] Fix race in finding available vnc port

+ if (virBitmapGetBit(driver->reservedVNCPorts, + i - QEMU_VNC_PORT_MIN, &used) < 0) + VIR_DEBUG("virBitmapGetBit failed on bit %d", i - QEMU_VNC_PORT_MIN); + + if (used) + continue; + addr.sin_family = AF_INET; addr.sin_port = htons(i); addr.sin_addr.s_addr = htonl(INADDR_ANY); @@ -2654,6 +2669,8 @@ static int qemudNextFreeVNCPort(struct qemud_driver *driver ATTRIBUTE_UNUSED) { if (bind(fd, (struct sockaddr*)&addr, sizeof(addr)) == 0) { /* Not in use, lets grab it */ close(fd); + /* Add port to bitmap of reserved ports */ + virBitmapSetBit(driver->reservedVNCPorts, i - QEMU_VNC_PORT_MIN);