Bug 146425 - [mwl] mwl dropping all packets during and after high usage on 802.11n
Summary: [mwl] mwl dropping all packets during and after high usage on 802.11n
Status: Open
Alias: None
Product: Base System
Classification: Unclassified
Component: wireless (show other bugs)
Version: Unspecified
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-wireless (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-05-09 07:10 UTC by Erik Fonnesbeck
Modified: 2018-05-28 19:47 UTC (History)
0 users

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Description Erik Fonnesbeck 2010-05-09 07:10:02 UTC
When using the card in 802.11n in access point mode, testing with file copying to or from a Windows system with an 802.11n card (specifically an Atheros 5416-based card in this card) with the other endpoint being accessed over 100 Mbps ethernet, after a short time it started to drop all packets, even after the transfer was stopped.  Before the packet loss, the transfer is typically far below 802.11g's fastest rate.

Fix: 

If ampdu is disabled, the packet loss does not occur.  After that it can also at least reach, but not exceed, 802.11g rates.
How-To-Repeat: Use mwl as 802.11n access point and copy a file over the network without a speed cap set.
Comment 1 Mark Linimon freebsd_committer freebsd_triage 2010-05-10 05:17:06 UTC
Responsible Changed
From-To: freebsd-bugs->freebsd-net

Over to maintainer(s).
Comment 2 Adrian Chadd freebsd_committer 2012-04-30 07:02:18 UTC
Responsible Changed
From-To: freebsd-net->freebsd-wireless

Switch over
Comment 3 Eitan Adler freebsd_committer freebsd_triage 2018-05-28 19:47:33 UTC
batch change:

For bugs that match the following
-  Status Is In progress 
AND
- Untouched since 2018-01-01.
AND
- Affects Base System OR Documentation

DO:

Reset to open status.


Note:
I did a quick pass but if you are getting this email it might be worthwhile to double check to see if this bug ought to be closed.