Bug 185425 - [iwn] iwn difficulties in busy radio environments
Summary: [iwn] iwn difficulties in busy radio environments
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: 2014-01-02 21:00 UTC by Nathan Whitehorn
Modified: 2018-05-28 19:46 UTC (History)
0 users

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Description Nathan Whitehorn freebsd_committer 2014-01-02 21:00:00 UTC
In busy radio environments (i.e. not at home), using wpa_supplicant reliably causes NIC crashes involving printing errors about "NMI_FIRMWARE_WATCHDOG" to the console. Resetting the interface (an up/down cycle) restores its operation for a time.

This problem seems specific to wpa_supplicant. If I am connected to an open network and wpa_supplicant is running, the NIC will crash. If I turn wpa_supplicant off and just connect with ifconfig ssid foo, it will not crash. I suspect it is a scanning-related race.

The card in question is:
iwn0@pci0:3:0:0:        class=0x028000 card=0x11108086 chip=0x42308086 rev=0x61 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'PRO/Wireless 4965 AG or AGN [Kedron] Network Connection'
Comment 1 Mark Linimon freebsd_committer freebsd_triage 2014-01-04 02:29:48 UTC
Responsible Changed
From-To: freebsd-bugs->freebsd-wireless

Over to maintainer(s).
Comment 2 Eitan Adler freebsd_committer freebsd_triage 2018-05-28 19:46:57 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.