Re: kldload hangs loading if_iwlwifi on CURRENT

From: Bjoern A. Zeeb <bz_at_FreeBSD.org>
Date: Sun, 08 Dec 2024 19:27:48 UTC
On Sat, 7 Dec 2024, Pete Wright wrote:

> hey there,
> i'm running a CURRENT from Dec 6 and have noticed that when i attempt to load 
> the iwlwifi kernel module kldload does not exit. it seems to happen after the 
> firmware loads, here's the output from /var/log/messages:
>
[...]
> Dec  7 18:43:06 colony kernel: iwlwifi0: loaded firmware version 
> 46.ff18e32a.0 9000-pu-b0-jf-b0-46.ucode op_mode iwlmvm
>
>
> I can't ctl+c to quit the command, but the system does not hang. i'm able to 
> kill kldload in a seperate shell, but future attempts to load the kernel 
> module also hang the shell.  also, when kldload hangs i notice that 
> if_iwlwifi is *not* showing up when i run kldstat.
>
> here's the PCI device info:
> ppt0@pci0:0:20:3:       class=0x028000 rev=0x30 hdr=0x00 vendor=0x8086 
> device=0x9df0 subvendor=0x8086 subdevice=0x0030
>     vendor     = 'Intel Corporation'
>     device     = 'Cannon Point-LP CNVi [Wireless-AC]'
>     class      = network

This is intersting; it's also a CNVi device.


> Happy to provide any more debug info if needed.  Thanks!

See also https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282789

I'll follow-up there hopefully tonight.

/bz

-- 
Bjoern A. Zeeb                                                     r15:7