This is the mail archive of the
ecos-patches@sources.redhat.com
mailing list for the eCos project.
RedBoot tcp hack
- From: Mark Salter <msalter at redhat dot com>
- To: gary at mlbassoc dot com
- Cc: ecos-patches at ecos dot sourceware dot org
- Date: Mon, 22 Dec 2003 11:18:49 -0500 (EST)
- Subject: RedBoot tcp hack
- References: <1072012738.1641.10.camel@hermes>
>>>>> Gary Thomas writes:
+ * src/net/tcp.c (tcp_send): Add [restore] delay into TCP write
+ path. Sadly, there seems to be some issue where some ACK packets
+ get lost unless this is present (at least on some hardware).
+ n.b. a small delay here is definitely preferable to the horrendous
+ delays imposed by TCP retries if this condition occurs.
We can't leave this in. It creates a 2ms overhead for every transmitted
tcp segment. The actual problem and a proper fix needs to be found. I've
never seen anything like described above. Could you elaborate on how to
reproduce, etc.
--Mark