Bug#939633: More severe #939633 for RP4 on 5.8?

2020-12-13 Thread Ben Hutchings
On Fri, 2020-11-27 at 20:41 -0800, Elliott Mitchell wrote:
> found 935456 5.9.6-1~bpo10+1
> quit
> 
> After having spent several hours on kernel compiles and experimenting
> with the situation, I'm fairly sure this also applies to
> linux-source-5.9.
> 
> Odd thing is, when I booted the device using the Tianocore implementation
> it came right up with no problems.  I'm getting this odd suspicion
> someone deliberately broke the device-trees in Debian's kernel source.
> The goal being to force everyone onto the Tianocore/ACPI implementation
> and try to kill device-trees.
> 
> Right now I think this is conspiracy theory territory, but I'm left
> wondering how such a serious bug could hang around so long...

We don't patch any of this stuff.  Any bugs in the device trees that we
ship come from the upstream kernel, and need to be fixed there.  No-
one's deliberately breaking this in Debian, and you had better stop
making accusations like that.

Ben. 

-- 
Ben Hutchings
The two most common things in the universe are hydrogen and stupidity.


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Bug#939633: More severe #939633 for RP4 on 5.8?

2020-11-27 Thread Elliott Mitchell
found 935456 5.9.6-1~bpo10+1
quit

After having spent several hours on kernel compiles and experimenting
with the situation, I'm fairly sure this also applies to
linux-source-5.9.

Odd thing is, when I booted the device using the Tianocore implementation
it came right up with no problems.  I'm getting this odd suspicion
someone deliberately broke the device-trees in Debian's kernel source.
The goal being to force everyone onto the Tianocore/ACPI implementation
and try to kill device-trees.

Right now I think this is conspiracy theory territory, but I'm left
wondering how such a serious bug could hang around so long...


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Bug#939633: More severe #939633 for RP4 on 5.8?

2020-11-25 Thread Elliott Mitchell
found 939633 5.8.10-1~bpo10+1
severity 939633 important
merge 935456 939633
quit

I'm left suspecting bugs #935456 and #939633, are in reality a single
bug: Raspberry Pi device trees were garbled during Debian's 5.2 kernel
development.

They appear to remain very garbled, to the point of being pretty well
useless.  I've built a kernel from Debian's 5.8 kernel source and the
device tree binary produced doesn't appear to allow a Raspberry PI 4B
to complete its boot.  Might be USB functionality is operational, but
neither ethernet interface nor display function.

Ironically, the additional ACPI/EFI support DOES function.  This means
the Tianocore image for Raspberry PI 4B works better with the current
source.

I'm unsure whether badly breaking all Raspberry PI variants quite
justifies critical or grave (popular machine, but kernel issues by nature
cause 10x the damage so severities should be somewhat damped).

I certainly hope to see the 5.9 release since that has additional
high-value improvements...


-- 
(\___(\___(\__  --=> 8-) EHM <=--  __/)___/)___/)
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