From: David Howells
Date: Thu, 11 Jun 2020 21:57:00 +0100
> There's a race between the retransmission code and the received ACK parser.
> The problem is that the retransmission loop has to drop the lock under
> which it is iterating through the transmission buffer in order to transmit
> a packet,
There's a race between the retransmission code and the received ACK parser.
The problem is that the retransmission loop has to drop the lock under
which it is iterating through the transmission buffer in order to transmit
a packet, but whilst the lock is dropped, the ACK parser can crank the Tx
win