Re: [REGRESSION][BISECTED] Scheduling errors with the AMD FX 8300 CPU

[Thomas Gleixner <tglx@linutronix.de>]

Christian!

On Fri, May 24 2024 at 23:23, Christian Heusel wrote:
> Tim reports a regression on his AMD FX 8300 CPU that causes him
> scheduling errors (see dmesg below), initially on the latest stable
> kernel from Arch Linux. The issue reproduces by simply booting the
> kernel on his hardware. He also reported some ATA related errors (also
> attached below the dmesg), of which I dont know whether they are
> relevant or not.

I've earmarked this but I wont be able to look at it before monday. 

> May 23 23:36:49 archlinux kernel: smp: Bringing up secondary CPUs ...

Can you please provide the full boot log as the information which leads
up to the symptom is obviously more interesting than the symptom itself.

> May 23 23:36:49 archlinux kernel: smpboot: x86: Booting SMP configuration:
> May 23 23:36:49 archlinux kernel: .... node  #0, CPUs:      #2 #4 #6
> May 23 23:36:49 archlinux kernel: __common_interrupt: 2.55 No irq handler for vector
> May 23 23:36:49 archlinux kernel: __common_interrupt: 4.55 No irq handler for vector
> May 23 23:36:49 archlinux kernel: __common_interrupt: 6.55 No irq handler for vector
>
> ATA stuff:
>
> May 23 23:36:59 archlinux kernel: ata2.00: exception Emask 0x10 SAct 0x1fffe000 SErr 0x40d0002 action 0xe frozen

That's probably just the fallout of the above.

Thanks,

        tglx