February 27, 2026 at 3:17 AM, "Jan Jaeger" <[email protected] mailto:[email protected]?to=%22Jan%20Jaeger%22%20%3Cjan.jaeger%40gmail.com%3E > wrote:
> > I have installed the smp kernel and am trying to run with more than one CPU > (under QEMU) and I do get lockups, where it appears that one CPU goes into a > loop and the system stalls. > I have no issues when I run with -smp 1 (on the qemu commandline), however it > does lock up with -smp 2 or more. Also, it appears that it gets a lot > further when I specify more CPUs (e.g. 8), but it then still locks up, but at > a later stage. > > My qemu config is: > > kvm -m 16G -cpu host -smp 2 \ > > -net nic,model=e1000,macaddr=00:00:00:00:00:04 \ > > -net tap,ifname=tap1,script=no,downscript=no \ > > -device ich9-ahci,id=ahci \ > > -device ide-hd,drive=disk0,bus=ahci.0 \ > > -drive > id=disk0,if=none,format=raw,cache=writeback,media=disk,file=disk-amd64.img \ > > -display curses add "-m q35" to your qemu invocation. That's needed for 64 bit at the moment. :) It's a bug that needs to be fixed. also yesterdays irc logs talk about the newest SMP support: https://logs.guix.gnu.org/hurd/2026-02-26.log https://logs.guix.gnu.org/hurd/2026-02-27.log > and my grub config is: > > set default="0" > > set timeout=5 > > menuentry "Debian GNU/Hurd amd64" { > > insmod ext2 > > set root=(hd0,1) > > multiboot /boot/gnumach-1.8-amd64-smp.gz > root=part:1:device:wd0 > > module /hurd/pci-arbiter.static pci-arbiter \ > > --host-priv-port='${host-port}' > --device-master-port='${device-port}' \ > > --next-task='${disk-task}' \ > > '$(pci-task=task-create)' '$(task-resume)' > > module /hurd/rumpdisk.static rumpdisk \ > > --next-task='${fs-task}' \ > > '$(disk-task=task-create)' > > module /hurd/ext2fs.static ext2fs --readonly \ > > --multiboot-command-line='${kernel-command-line}' > \ > > --exec-server-task='${exec-task}' -T typed > '${root}' \ > > '$(fs-task=task-create)' > > module /lib/ld-x86-64.so.1 exec /hurd/exec > '$(exec-task=task-create)' > > } > > Any thoughts? > > Many thanks, > > Jan > > On Fri, Feb 27, 2026 at 12:40 AM NexusSfan <[email protected] > mailto:[email protected] > wrote: > > > > > On 2/25/26 5:49 AM, Samuel Thibault wrote: > > > Hello, > > > > > > The amd64-smp kernel has been installed in debian, it's available on > > > http://incoming.ports.debian.org/buildd > > > and will be available on archive mirrors within 6h. > > > > Love it! Was able to run it on my T420 with no issues. Now, to figure > > out how to use it as the default gnumach on grub... > > > > > > > > Samuel > > > > > > > -- > > NexusSfan > > GNU.org - Please support free software. > > >
