Re: s390x/qemu-user: TODO /home/dhildenb/git/qemu/tcg/tci.c:859: tcg_qemu_tb_exec()

[Philippe Mathieu-Daudé]

Hi David,

On 10/17/19 12:02 PM, David Hildenbrand wrote:
> Hi,
>
> I'm currently trying to run Fedora 31 under qemu-user 
> (https://github.com/fedora-cloud/docker-brew-fedora/tree/8a81f67271e959dfc8f8a888b161bbd540b7a83b/s390x) 
> in order to debug  a vector instruction issue.
>
> Strangely, when trying to chroot into above rootfs and running 
> /bin/bash, I get
>
> t460s: ~/f31  $ sudo chroot . ./qemu-s390x  /bin/bash
> TODO /home/dhildenb/git/qemu/tcg/tci.c:859: tcg_qemu_tb_exec()
> /home/dhildenb/git/qemu/tcg/tci.c:859: tcg fatal error
> Aborted
>
>
> But it's not fundamentally broken:
>
> t460s: ~/f31  $ sudo chroot . ./qemu-s390x  /bin/ls
> bin   dev  home  lib64       media  opt   qemu-s390x  run   srv  tmp  var
> boot  etc  lib   lost+found  mnt    proc  root        sbin  sys  usr
>
>
> I do wonder why we don't run into the same issue under qemu-systems390x.

Are you also using TCI in system emulation?

Can you simply use TCG to debug your vector instruction issue instead?

Regards,

Phil.