Re: [REGRESSION, bisect]cxgb4 port failure with TSO traffic after commit 10d3be569243def8("tcp-tso: do not split TSO packets at retransmit time")
From: Eric Dumazet <hidden>
Date: 2016-06-27 08:06:30
On Mon, 2016-06-27 at 12:47 +0530, Arjun V wrote:
Eric, Thanks for the quick patch. It didn't help much. We still see packets larger than 65536 with the patch. Below is the dump_stack() trace I am seeing for packets larger than 65536 in our xmit routine:
What values do you get for skb->len ? Again, at retransmit time we never grow packets, we only can split existing packets. So there is something very wrong. The original xmit should already have hit this issue.