GNU bug report logs - #66053
Childhurd fails to run inside ‘guix system vm’

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Message #10 received at 66053-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: 66053-done <at> debbugs.gnu.org
Cc: Janneke Nieuwenhuizen <janneke <at> gnu.org>
Subject: Re: bug#66053: Childhurd fails to run inside ‘guix system vm’
Date: Mon, 18 Sep 2023 23:44:13 +0200

Ludovic Courtès <ludovic.courtes <at> inria.fr> skribis:

> When I run it by hand with KVM on my bare-metal GNU/Linux machine, it’s
> all good: 👍
>
> $ "/gnu/store/1rg1fb9mj65rh82467vwlrkmi12p4v89-qemu-minimal-8.1.0/bin/qemu-system-i386" "-m" 2048 "--device" "rtl8139,netdev=net0" "--netdev" "user,id=net0,hostfwd=tcp:127.0.0.1:11004-:1004,hostfwd=tcp:127.0.0.1:10022-:2222,hostfwd=tcp:127.0.0.1:15900-:5900" "--snapshot" "--hda" "/gnu/store/iqacww23byvw9c5ssja9fkx6m4s057b0-disk-image" "--no-reboot" --enable-kvm
> VNC server running on 127.0.0.1:5900
>
>
> However, the same thing *without* KVM (as happens within ‘guix system
> vm’) reproduces the “Bad ram pointer” issue:
>
> $ "/gnu/store/1rg1fb9mj65rh82467vwlrkmi12p4v89-qemu-minimal-8.1.0/bin/qemu-system-i386" "-m" 2048 "--device" "rtl8139,netdev=net0" "--netdev" "user,id=net0,hostfwd=tcp:127.0.0.1:11004-:1004,hostfwd=tcp:127.0.0.1:10022-:2222,hostfwd=tcp:127.0.0.1:15900-:5900" "--snapshot" "--hda" "/gnu/store/iqacww23byvw9c5ssja9fkx6m4s057b0-disk-image" "--no-reboot" 
> VNC server running on 127.0.0.1:5900
> qemu-system-i386: Bad ram pointer 0x7fa930e0001e
> Aborted
>
>
> Good news: I found a workaround!  Just use the x86_64 emulator:

Done in 5e0ae2684615b6d10751390420e7db296785112b!

Ludo’.

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