From: Landry Breuil Subject: Re: smmu(4) on QC Laptops To: Patrick Wildt Cc: tech@openbsd.org, kettenis@openbsd.org, tobhe@openbsd.org, mlarkin@openbsd.org Date: Fri, 23 May 2025 13:56:22 +0200 Le Fri, May 23, 2025 at 10:22:19AM +0200, Patrick Wildt a écrit : > On Fri, May 23, 2025 at 09:20:52AM +0200, Landry Breuil wrote: > > Le Fri, May 23, 2025 at 08:46:16AM +0200, Patrick Wildt a ?crit : > > > Hi, > > > > > > Nearly three years ago we disabled smmu(4) for QC laptops because they > > > just rebooted instantly. I've finally gone to the bottom of why this > > > happens. > > > > > Please give this a go on machines where `dmesg | grep ^smmu' gives > > > output, and especially on QC machines with X1E, or SC8280XP/ThinkPad > > > x13s. Please send me some dmesgs, as I have added some debug code > > > that I'd like to see run on other machines. :) > > > > doesnt blow up on the hp omnibook, dmesg below. > > I forgot to mention, this needs a `make config` because of the early > attach change that I forgot to mention, otherwise smmu1 pops up too > late :/ Can you give it another try? Thanks! unless i did something very wrong, make config && make && make install && reboot gives the same dmesg order for smmuX. what should i see different ? Landry