Hi, Now that [1] and [2] are merged, hurd boots in qemu without -M q35.
Almu, maybe you can compile hurd/acpi.static and gnumach with these changes and try on old hardware with piixide, the "lost interrupt" problem should be gone, but I'm not sure if that is the problem you saw, or if it timed out on IDENTIFY wd0. I tried, ahcisata wd0 still times out and fails on my w530 with up+apic or smp. (This is the only remaining issue for disk I think). Thanks, Damien [1] https://lists.gnu.org/archive/html/bug-hurd/2025-06/msg00063.html [2] https://lists.gnu.org/archive/html/bug-hurd/2025-06/msg00064.html On 6/21/25 9:46 PM, Almudena Garcia wrote: > Hi: > > We get the same issue (or pretty similar) in real hardware, in many > Thinkpad models with Core2Duo. > And the already known problem with SMP even in more modern Thinkpad > models (probably the problem keeps in some other computers, but I > don't have another PC to test it). > > I think that the problem is close related to the Qemu issue. In my > Thinkpad T410, the rumpdisk works in "up" gnumach, but doesn't works > in "smp" version. > In previous model, like T60, as I previosly said, rumpdisk doesn't > detect the disk neither in AHCI or "compatibiliy" (IDE emulation), > even with gnumach-up. > > We need a deep debugging to solve all this problems, with the > objective to get test gnumach-smp in real hardware. > > > > > El sáb, 21 jun 2025 a las 7:32, Damien Zammit (<dam...@zamaudio.com > <mailto:dam...@zamaudio.com>>) escribió: > > Hi, > > As discussed, it would be good to fix piixide driver when i440fx > chipset > is used by default in qemu ("-M pc"). > > Currently we get "lost interrupt" messages appearing from rumpdisk > and > the disk access is not working. > > I tried compiling gnumach **without** --enable-apic and bypassing the > acpi translator startup. In this case, piixide driver works correctly. > > I think there is some kind of disconnect between I/O APIC in qemu and > the PIIX3 IDE controller. (Maybe they cannot be used concurrently?) > > Alternatively, if you really want to use -M pc default machine, > you can > attach an ich9-ahci controller and connect the primary disk to this > controller as a SATA disk: > > -drive id=disk,file=/path/to/disk.img,if=none \ > -device ich9-ahci,id=ahci \ > -device ide-hd,bus=ahci.0,drive=disk \ > > This works without specifying a -M option with acpi and rumpdisk > with an > --enable-apic gnumach, by using an AHCI controller instead of a PIIX3 > IDE controller. > > In other news, we still have a bug with rumpdisk timing out on > AHCI->wd0 > on native controllers. I am not sure what causes this but I suspect > some kind of race condition between startup translators. > > Damien > >
