Call for report - G5/PPC970 status (was: Re: Found the commit for: 5.3.7 64-bits kernel doesn't boot on G5 Quad [regression])

[Romain Dolbeau]

Le mer. 11 déc. 2019 à 03:20, Aneesh Kumar K.V
 a écrit :
> The PowerMac system we have internally was not able to recreate this.

To narrow down the issue - is that a PCI/PCI-X (7,3 [1]) or PCIe G5 (11,2 [1]) ?
Single, dual or quad ?

Same question to anyone else with a G5 / PPC970 - what is it and does
it boot recent PPC64 Linux kernel ?

Christian from the original report has a quad, like me (so powermac11,2).

There was also a report of a powermac7.3 working in the original discussion,
single or dual unspecified.

So this might be a Quad thing, or a more general 11,2 thing...

> At this point, I am not sure what would cause the Machine check with
> that patch series because we have not changed the VA bits in that patch.

Any test I could run that would help you tracking the bug ?

Cordially,

Romain

[1] 


--
Romain Dolbeau

Re: Found the commit for: 5.3.7 64-bits kernel doesn't boot on G5 Quad [regression]

[Aneesh Kumar K.V]

John Paul Adrian Glaubitz  writes:

> Hi!
>
> On 12/10/19 9:35 AM, Romain Dolbeau wrote:
>> Le sam. 16 nov. 2019 à 17:34, Romain Dolbeau  a écrit :
>>> So it seems to me that 0034d395f89d9c092bb15adbabdca5283e258b41
>>> introduced the bug that crashes the PowerMac G5
>> 
>> There's been some commits in that subsystem, so I tried again; as of
>> 6794862a16ef41f753abd75c03a152836e4c8028, the kernel still crashes
>> when trying to boot my PowerMac G5.
>
> If Aneesh is currently unable to look at the problem, I would suggest 
> reverting
> the commit in question since I don't think it's acceptable that users are 
> unable
> to boot their machines anymore after a kernel upgrade.
>

The PowerMac system we have internally was not able to recreate this.
Hence we have not been able to make progress on this.

At this point, I am not sure what would cause the Machine check with
that patch series because we have not changed the VA bits in that patch.

-aneesh

Re: Found the commit for: 5.3.7 64-bits kernel doesn't boot on G5 Quad [regression]

[John Paul Adrian Glaubitz]

Hi!

On 12/10/19 9:35 AM, Romain Dolbeau wrote:
> Le sam. 16 nov. 2019 à 17:34, Romain Dolbeau  a écrit :
>> So it seems to me that 0034d395f89d9c092bb15adbabdca5283e258b41
>> introduced the bug that crashes the PowerMac G5
> 
> There's been some commits in that subsystem, so I tried again; as of
> 6794862a16ef41f753abd75c03a152836e4c8028, the kernel still crashes
> when trying to boot my PowerMac G5.

If Aneesh is currently unable to look at the problem, I would suggest reverting
the commit in question since I don't think it's acceptable that users are unable
to boot their machines anymore after a kernel upgrade.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaub...@debian.org
`. `'   Freie Universitaet Berlin - glaub...@physik.fu-berlin.de
  `-GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

Re: Found the commit for: 5.3.7 64-bits kernel doesn't boot on G5 Quad [regression]

[Romain Dolbeau]

Hello,

Le sam. 16 nov. 2019 à 17:34, Romain Dolbeau  a écrit :
> So it seems to me that 0034d395f89d9c092bb15adbabdca5283e258b41
> introduced the bug that crashes the PowerMac G5

There's been some commits in that subsystem, so I tried again; as of
6794862a16ef41f753abd75c03a152836e4c8028, the kernel still crashes
when trying to boot my PowerMac G5.

Cordially,

-- 
Romain Dolbeau