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'
Over to maintainer(s).
For bugs that match the following
- Status Is In progress
- Untouched since 2018-01-01.
- Affects Base System OR Documentation
Reset to open status.
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.