Re: Current state of the Linux kernel on SPARC

Hello,

On Tue, 2025-08-26 at 18:59 -0700, Tony Rodriguez wrote:
> Are Michael's 6.12.38 kernel fixes added into kernel 6.16.3-1?

No, the patches were just posted for the first time yesterday while
the image was built last week.

> Just tried the latest 08/21/2025 ports ISO on an Oracle S7-2 system.
> 
> https://cdimage.debian.org/cdimage/ports/snapshots/2025-08-21/
> 
> *Note: The bare-metal install with lxde is fine. However, receive the 
> following panic/error after first reboot (when initial install is 
> finished).  Due to this, I will hold off on T5140 and IBM Power 7/8 
> Debian installs (unless someone requests I try them).
> 
> Loading Linux 6.16.3+deb14-sparc64-smp ...
> Loading initial ramdisk ...
> 
> [    1.026613] ds-1: ds_conn_reset() from ldc_rx
> [    2.674023] Kernel panic - not syncing: corrupted stack end detected 
> inside scheduler
> [    2.689447] CPU: 14 UID: 0 PID: 288 Comm: (udev-worker) Tainted: G    
>      W           6.16.3+deb14-sparc64-smp #1 NONE Debian 6.16.3-1
> [    2.713919] Tainted: [W]=WARN
> [    2.719812] Call Trace:
> [    2.724672] [<0000000000437408>] dump_stack+0x8/0x18
> [    2.734573] [<0000000000429540>] panic+0xf4/0x398
> [    2.743944] [<0000000000f80964>] switch_to_pc+0x918/0x934
> [    2.754710] [<0000000000f8099c>] schedule+0x1c/0x180
> [    2.913102] Press Stop-A (L1-A) from sun keyboard or send break
> [    2.913102] twice on console to return to the boot prom
> [    2.935109] ---[ end Kernel panic - not syncing: corrupted stack end 
> detected inside scheduler ]---

The installer uses the non-SMP kernel while the installed system uses the SMP
kernel. Can you try whether the non-SMP kernel works?

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
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