23.07.2015 12:43, Oliver Neukum пишет:
On Mon, 2015-07-20 at 21:13 +0300, Eugene Shatokhin wrote:[Race #5] Race on dev->rx_urb_size. I reproduced it a similar way as the races #2 and #3 (changing MTU while downloading files). dev->rx_urb_size is written to here: #0 usbnet_change_mtu (usbnet.c:392) dev->rx_urb_size = dev->hard_mtu; Here is the conflicting read from dev->rx_urb_size: * rx_submit (usbnet.c:467) size_t size = dev->rx_urb_size;Yes, but what is the actual bad race? I mean, if you change the MTU in operation, there will be a race. That is just unavoidable. Do we generate errors?
No, I have observed no problems due to this race so far. Regards, Eugene -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
