[Bug 263632] iwlwifi(4) crashes (freezes) a few seconds after resuming from sleep (suspend/resume not working; workaround known for now)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263632

--- Comment #45 from Graham Perrin <grahamperrin@gmail.com> ---
Below, the 05:35 workaround and other relevant information. 

(The longhand workaround suits me for reasons that are off-topic from 263632.)

% su -
Password:
root@mowa219-gjp4-zbook-freebsd:~ # route delete default ; ifconfig gif0 down ;
service netif stop em0 > & /dev/null ; ifconfig wlan0 destroy ; ifconfig wlan1
destroy ; sleep 1 ; service netif start wlan1 > & /dev/null ; sleep 15 ;
resolvconf -i ; route show default ; ping -4 -c 2 freshports.org
delete net default
ifconfig: interface wlan0 does not exist
wlan1 
   route to: default
destination: default
       mask: default
    gateway: 192.168.1.1
        fib: 0
  interface: wlan1
      flags: <UP,GATEWAY,DONE,STATIC>
 recvpipe  sendpipe  ssthresh  rtt,msec    mtu        weight    expire
       0         0         0         0      1500         1         0 
PING freshports.org (54.227.255.74): 56 data bytes
64 bytes from 54.227.255.74: icmp_seq=0 ttl=52 time=91.210 ms
64 bytes from 54.227.255.74: icmp_seq=1 ttl=52 time=91.527 ms

--- freshports.org ping statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 91.210/91.369/91.527/0.159 ms
root@mowa219-gjp4-zbook-freebsd:~ # uname -bmvKU
FreeBSD 15.0-CURRENT main-n273879-3f0289ea7f66 GENERIC-NODEBUG amd64 1500028
1500028 1910200f0b8b51e4e493dbf2e93bd1589b540b29
root@mowa219-gjp4-zbook-freebsd:~ # 


% pciconf -lv | grep -A 3 iwlwifi
iwlwifi0@pci0:61:0:0:   class=0x028000 rev=0x6b hdr=0x00 vendor=0x8086
device=0x08b1 subvendor=0x8086 subdevice=0xc060
    vendor     = 'Intel Corporation'
    device     = 'Wireless 7260'
    class      = network
% sysrc devmatch_blocklist
devmatch_blocklist: i915kms if_iwm
% sysrc kld_list
kld_list: fusefs filemon nvidia-modeset
% grep -B 4 -A 1 ifconfig_wlan1 /etc/rc.conf

wlans_iwlwifi0="wlan1"
create_args_wlan1="wlanmode sta country GB regdomain etsi"
# create_args_wlan1="country GB regdomain etsi"
ifconfig_wlan1="WPA DHCP"

%

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