Failure to boot G4: dt_headr_start=0x01501000

[Mathieu Malaterre]

On Thu, May 23, 2019 at 10:29 AM Mathieu Malaterre <malat at debian.org> wrote:
>
> On Thu, May 23, 2019 at 8:39 AM Christophe Leroy
> <christophe.leroy at c-s.fr> wrote:
> >
> > Salut Mathieu,
> >
> > Le 23/05/2019 à 08:24, Mathieu Malaterre a écrit :
> > > Salut Christophe,
> > >
> > > On Wed, May 22, 2019 at 2:20 PM Christophe Leroy
> > > <christophe.leroy at c-s.fr> wrote:
> > >>
> > >>
> > >>
> > >> Le 22/05/2019 à 14:15, Mathieu Malaterre a écrit :
> > >>> Hi all,
> > >>>
> > >>> I have not boot my G4 in a while, today using master here is what I see:
> > >>>
> > >>> done
> > >>> Setting btext !
> > >>> W=640 H=488 LB=768 addr=0x9c008000
> > >>> copying OF device tree...
> > >>> starting device tree allocs at 01401000
> > >>> otloc_up(00100000, 0013d948)
> > >>>     trying: 0x01401000
> > >>>     trying: 0x01501000
> > >>>    -› 01501000
> > >>>     alloc_bottom : 01601000
> > >>>     alloc_top    : 20000000
> > >>>     alloc_top_hi : 20000000
> > >>>     nmo_top      : 20000000
> > >>>     ram_top      : 20000000
> > >>> Building dt strings...
> > >>> Building dt structure...
> > >>> reserved memory map:
> > >>>     00d40000 - 006c1000
> > >>> Device tree strings 0x01502000 -> 0x00000007
> > >>> Device tree struct 0x01503000 -> 0x00000007
> > >>> Quiescing Open Firmware ...
> > >>> Booting Linux via __start() @ 0x001400000
> > >>> ->dt_headr_start=0x01501000
> > >>>
> > >>> Any suggestions before I start a bisect ?
> > >>>
> > >>
> > >> Have you tried without CONFIG_PPC_KUEP and CONFIG_PPC_KUAP ?
> > >
> > > Using locally:
> > >
> > > diff --git a/arch/powerpc/configs/g4_defconfig
> > > b/arch/powerpc/configs/g4_defconfig
> > > index 14d0376f637d..916bce8ce9c3 100644
> > > --- a/arch/powerpc/configs/g4_defconfig
> > > +++ b/arch/powerpc/configs/g4_defconfig
> > > @@ -32,6 +32,8 @@ CONFIG_USERFAULTFD=y
> > >   # CONFIG_COMPAT_BRK is not set
> > >   CONFIG_PROFILING=y
> > >   CONFIG_G4_CPU=y
> > > +# CONFIG_PPC_KUEP is not set
> > > +# CONFIG_PPC_KUAP is not set
> > >   CONFIG_PANIC_TIMEOUT=0
> > >   # CONFIG_PPC_CHRP is not set
> > >   CONFIG_CPU_FREQ=y
> > >
> > >
> > > Leads to almost the same error (some values have changed):
> >
> > Ok.
> >
> > When you say you are using 'master', what do you mean ? Can you give the
> > commit Id ?
> >
> > Does it boots with Kernel 5.1.4 ?
>
> I was able to boot v5.1:
>
> $ dmesg | head
> [    0.000000] printk: bootconsole [udbg0] enabled
> [    0.000000] Total memory = 512MB; using 1024kB for hash table (at (ptrval))
> [    0.000000] Linux version 5.1.0+ (malat at debian.org) (gcc version
> 8.3.0 (Debian 8.3.0-7)) #8 Thu May 23 06:26:38 UTC 2019
>
> Commit id is:
>
> e93c9c99a629 (tag: v5.1) Linux 5.1
>
> > Did you try latest powerpc/merge branch ?
>
> Will try that next.

I confirm powerpc/merge does not boot for me (same config). Commit id:

a27eaa62326d (powerpc/merge) Automatic merge of branches 'master',
'next' and 'fixes' into merge


> > Can you send your full .config ?
>
> Config is attached.
>
> Thanks,
>
> > Christophe
> >
> > >
> > > done
> > > Setting btext !
> > > W=640 H=488 LB=768 addr=0x9c008000
> > > copying OF device tree...
> > > starting device tree allocs at 01300000
> > > alloc_up(00100000, 0013d948)
> > >    trying: 0x01300000
> > >    trying: 0x01400000
> > >   -› 01400000
> > >    alloc_bottom : 01500000
> > >    alloc_top    : 20000000
> > >    alloc_top_hi : 20000000
> > >    nmo_top      : 20000000
> > >    ram_top      : 20000000
> > > Building dt strings...
> > > Building dt structure...
> > > reserved memory map:
> > >    00c40000 - 006c0000
> > > Device tree strings 0x01401000 -> 0x00000007
> > > Device tree struct 0x01402000 -> 0x00000007
> > > Quiescing Open Firmware ...
> > > Booting Linux via __start() @ 0x001400000
> > > ->dt_headr_start=0x01400000
> > >
> > > Thanks anyway,
> > >