Re: Bug#790560: udev fails to start on sparc boot, breaking boot

[Artyom Tarasenko <atar4qemu@gmail.com>]

On Tue, Aug 18, 2015 at 9:50 AM, Knut Petter Ølberg <kpolberg@gmail.com> wrote:
>
>
> On 17 August 2015 at 18:48, Artyom Tarasenko <atar4qemu@gmail.com> wrote:
>>
>>  Hi Knut Petter,
>>
>> On Mon, Aug 17, 2015 at 10:29 AM, Knut Petter Ølberg <kpolberg@gmail.com>
>> wrote:
>> >
>> >
>> > On 9 August 2015 at 00:22, Sam Ravnborg <sam@ravnborg.org> wrote:
>> >>
>> >> Hi Artyom
>> >>
>> >> > I think the kernel is going to need this patch:
>> >> > https://lists.debian.org/debian-sparc/2015/08/msg00014.html
>> >> This patch does not fix any real bug - it is a cosmetic issue.
>> >>
>> >> I assume you wanted to point out the FPU fix:
>> >> "sparc64: Fix userspace FPU register corruptions"
>> >> https://lists.debian.org/debian-sparc/2015/08/msg00012.html
>> >>
>> >>         Sam
>> >
>> > Hi,
>> >
>> > Sorry about my late reply.
>>
>> No worries here. I think the most people in this thread don't have
>> much time for debian-sparc anyways. :-)
>>
>> > I mistakenly said T5120 when it's actually is a
>> > T5140. Not sure if this makes any difference?
>>
>> No difference, it's a sun4v machine too and the FPU register
>> corruption fix is still required.
>> https://lists.debian.org/debian-sparc/2015/08/msg00012.html
>>
>> > Anyways, just let me know what you need and I'll set it up.
>>
>> Since we identified that the udev (systemd) problems are caused by a
>> "gold" linker, the next steps are
>> build current binutils and check whether the situation is improved.
>>
>> And if it's not, patch a systemd package to use the "bfd" linker
>> instead of "gold".
>>
>
>
> So until this is fixed, the ldom would be of no use as a build machine?

Without the kernel fix the system just won't run stable.

The bug in binutils is not that dramatic: the default linker is bfd,
which works just fine.
Only builds of the programs that are explicitly configured to use the
gold linker are broken.
And I think udev is the only one which is necessary for the minimal install.

Artyom

-- 
Regards,
Artyom Tarasenko

SPARC and PPC PReP under qemu blog: http://tyom.blogspot.com/search/label/qemu