Re: New Debian sparc64 test kernel for stack corruption issue

Hi,

regarding T2000 Niagara T1 I did some tests using kernels from debian 
snapshots. E.g.

https://snapshot.debian.org/archive/debian-ports/20250511T134440Z/pool-sparc64/main/l/linux/

I found that 6.13, 6.14, 6.15 were available and I tried most of them.
I was prearing a report file with various boots attempt.
Unfortunately doing lots of reboots, I ended up rebooting my running 
workstation and not the SPARC server loosing everything. Ah! I was not 
"connected" and xterms are look alike.


John Paul Adrian Glaubitz wrote:
>> Take in consideration that on this sytem my sweet spot for kernel is:
>> 6.12.38+deb13-sparc64-smp
> Would you be able to bisect this?
>

The boot breakage appears to be with 6.15. I am unsure of the various 
versions.
6.14 kernels do boot, although during usage I got VM issues (e.g. using 
aptitude while running it)

Luckily I have the downloaded files so I coiuld reconstruct.

-rw-r--r--  1 multix users 42142648 Aug 28 16:34 
linux-image-6.12.3-sparc64-smp_6.12.3-1+sparc64_sparc64.deb
-rw-r--r--  1 multix users 48755288 Sep  8 23:53 
linux-image-6.12+unreleased-sparc64-smp_6.12.43-1+nothp1_sparc64.deb
-rw-r--r--  1 multix users 49575964 Jan 26  2025 
linux-image-6.13-rc7-sparc64-smp_6.13~rc7-1~exp1_sparc64.deb
-rw-r--r--  1 multix users 51283484 Feb 22  2025 
linux-image-6.13-sparc64-smp_6.13.4-1~exp1_sparc64.deb

-> up to here all boot fine!

-rw-r--r--  1 multix users 50302692 Apr 25 22:00 
linux-image-6.14-sparc64-smp_6.14.3-1~exp1_sparc64.deb
-rw-r--r--  1 multix users 50316636 May 10 09:50 
linux-image-6.14-sparc64-smp_6.14.6-1~exp1_sparc64.deb

-> these do boot, but running aptitude issued vm issues, although the 
machine did not lock up and could reboot



-rw-r--r--  1 multix users 50688376 May 23 09:53 
linux-image-6.15-rc7-sparc64-smp_6.15~rc7-1~exp1_sparc64.deb
-rw-r--r--  1 multix users 50664668 May 30 09:54 
linux-image-6.15-sparc64-smp_6.15-1~exp1_sparc64.deb
-rw-r--r--  1 multix users 50935216 Jul 11 16:14 
linux-image-6.15-sparc64-smp_6.15.6-1~exp1_sparc64.deb
-rw-r--r--  1 multix users 50422504 Oct 19 21:58 
linux-image-6.16.12+3-sparc64-smp_6.16.12-2+sparc64.1_sparc64.deb
-rw-r--r--  1 multix users 50432892 Sep 28 03:52 
linux-image-6.16.9+deb14-sparc64-smp_6.16.9-1_sparc64.deb

-> all of these fail to boot, even the rc7

I don't know if there are later 6.14 kernels I can try or earlier 6.15, 
but I would say that the issue is there.
Could be kernel code, change in configuration...

Riccardo