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?
Regards
Oliver
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