Re: debian bootup hangs on qemu-system-mips64el

[Jun Sun]

Are you sure QEMU/MIPS does not support SMP?  Below link written in
2016 clearly shows something was working then.

https://www.mips.com/blog/how-to-run-smp-linux-in-qemu-on-a-mips64-release-6-cpu/

Also, as Lixing mentioned in our private exchange, there is SMP
support for loongson.  Lixing, I assume loongson SMP support is
already merged in QEMU repo, right?  Can you point out the relevant
source code directories?

Would love to get more pointers here!  Thanks!

Jun

On Thu, Jan 9, 2020 at 1:24 PM Aurelien Jarno <address@hidden> wrote:
>
> On 2020-01-04 20:46, Jun Sun wrote:
> > On Wed, Jan 1, 2020 at 6:50 PM Jun Sun <address@hidden> wrote:
> > >
> > > Hi, all,
> > >
> > > Debian/mips64el runs well on qemu-system-mips64el until I turned on smp 
> > > option with a number of 2 or higher.  See the error message below.  It 
> > > usually hangs pretty early on.
> > >
>
> QEMU/mips doesn't really support SMP. The -smp option used to be for
> SMT, but I am not even sure it really worked.
>
> All that said, it's still a bug in QEMU to accept this option.
>
> --
> Aurelien Jarno                          GPG: 4096R/1DDD8C9B
> address@hidden                 http://www.aurel32.net