Re: [PATCH V5 00/22] arch: Add basic LoongArch support

[Xi Ruoyao]

On Wed, 2022-01-05 at 17:40 +0800, Huacai Chen wrote:
> Hi, Ruoyao,
> 
> The problem still exists in 5.16-rc8, can you try to change
> cpu_relax() definition to smp_mb()? It seems can fix the problem.

Is there any workload which can triggers the panic?  I can't trigger it
by building and testing GCC, or building the kernel anymore.

And is your "stable" issue the same one I'd encountered?  To me changing
barrier() to smp_mb() may fix some deadlock, but not a panic.  (I'm not
an expert on CPU architecture or kernel programming, so maybe I'm wrong
here.)

I'll put my 3A5000 machine into a loop building kernel and see if I can
trigger the panic again...
-- 
Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx>
School of Aerospace Science and Technology, Xidian University