Re: LinuxKPI (iwlwifi, rtw8x) Please test! Important! (in stable/15 in three days)

On 3/7/26 10:39, Bjoern A. Zeeb wrote:
> On Thu, 5 Mar 2026, ltning-freebsd-wireless@anduin.net wrote:
> In theory on a debug kernel and crash dumps turned on there are ways to
> blindly acquire a crash dump (if not really hard locked up) even if drm- 
> kmod
> has a blank or stale screen.

I'll have to tackle that one day, but it's so rare I'm sure to forget 
between each time how to do it .. :D


>> Since I've provided logs for this before I will not right now, however 
>> I am rebuilding again now with your most recent changes, and will 
>> collect logs if it happens again (and you think it is useful).
> 
> Yes please do as with underlying things changing details may change too and
> give me more hints.  I know S/R is still an open TODO here and it seems 
> most
> of you are more blessed than me to actually have a laptop which will 
> resume.

Attached.


> Just to fill my cache, you are also using the work around from
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263632#c27

I've used variations of the rc.suspend and rc.resume "tricks" for some 
time, but none of them make any real difference. I currently have a 
"service netif restart" in rc.resume; I used to have stop in rc.suspend 
but that sometimes crashed before it even went to sleep (that's a while 
ago).

I've also tried various kldunload and devctl disable combinations, to no 
avail.

/Eirik