Re: [PULL 13/25] hcd-ohci: Fix inconsistency when resetting ohci root hubs

[Laurent Vivier]

On 2/15/23 15:34, Stefan Hajnoczi wrote:
> On Wed, 15 Feb 2023 at 08:45, Qiang Liu <cyruscyliu@gmail.com> wrote:
> > Hi,
> > > > This commit breaks boot-serial-test on ppc64-softmmu.
> > > >
> > > >    $ ./configure --enable-tcg-interpreter
> > > > '--target-list=aarch64-softmmu alpha-softmmu arm-softmmu hppa-softmmu
> > > > m68k-softmmu microblaze-softmmu ppc64-softmmu s390x-softmmu
> > > > x86_64-softmmu'
> > > >    $ make && cd build && QTEST_QEMU_BINARY=./qemu-system-ppc64
> > > > ./tests/qtest/boot-serial-test; cd -
> > > >
> > > > (Yes, the full --target-list is needed because boot-serial-test isn't
> > > > built when only ppc64-softmmu is selected.)
> > > >
> > > > Here is the CI failure:
> > > > https://gitlab.com/qemu-project/qemu/-/jobs/3087540972#L22
> >
> >   I reproduced this failure and got "Out of malloc memory" error message in the 
> > [openbios-ppc](https://github.com/openbios/openbios/blob/4a0041107b8ef77e0e8337bfcb5f8078887261a7/libopenbios/ofmem_common.c#L134).
> >  However, I'm not sure how to debug this. Have you run into this issue before?
>
> I don't. Maybe Gerd has an idea?
>
> The memory allocation may be because there is either a request leak or
> additional USB activity as a result of this patch.

It looks like a bug in openbios ohci, perhaps Zoltan can help?

Thanks,
Laurent