[Bug 269824] iwlwifi sporadic loss of connectivity, then kernel panic on service netif restart

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269824

--- Comment #9 from Eirik Oeverby <ltning-freebsd@anduin.net> ---
(In reply to Bjoern A. Zeeb from comment #8)
0: Is this enough?
iwlwifi0: <iwlwifi> mem 0xea338000-0xea33bfff at device 20.3 on pci0
iwlwifi0: successfully loaded firmware image 'iwlwifi-QuZ-a0-hr-b0-73.ucode'
iwlwifi0: api flags index 2 larger than supported by driver
iwlwifi0: TLV_FW_FSEQ_VERSION: FSEQ Version: 89.3.35.37
iwlwifi0: loaded firmware version 73.35c0a2c6.0 QuZ-a0-hr-b0-73.ucode op_mode
iwlmvm
iwlwifi0: Detected Intel(R) Wi-Fi 6 AX201 160MHz, REV=0x351
uhub0: 18 ports with 18 removable, self powered
iwlwifi0: Detected RF HR B3, rfid=0x10a100

1: Not entirely, I have had spontaneous reboots on resume or even when issuing
a scan or restarting netif - but no record of them since I'm in X when it
happens and it always just boots. It didn't use to do that, not sure if it's a
hardware reset or something I can prevent through some sysctl. What hasn't
happened (yet) is that I need to hard-reset the machine; this sometimes
happened on netif restart, especially related to being associated with an
iPhone hotspot - usually afterwards, when trying to associate with something
else.

2: I've done that now; where should I expect the logs? I see a bit in
/var/log/messages so I'll get back with info if I get any.

3: I'll let you know.

PS: Whenever it reconnects (following a manual scan), speed tends to drop. I
usually find myself at the lowest possible speed, like 11 or 6Mbps or whatever
it is. Hideously slow, anyway. A netif restart gets me back to 54 for a bit.

/Eirik

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