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

[Xi Ruoyao]

On Tue, 2021-12-21 at 15:53 +0800, Huacai Chen wrote:

> On Mon, Dec 20, 2021 at 5:04 PM Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx>
> wrote:
> > 
> > The snapshot panics on my system under high pressure (building and
> > testing GCC).  The panic message is pasted, but it's kind of broken up
> > likely because multiple CPU cores were outputing to the serial console
> > simutaniously.
> > 
> > The config is attached.  I'm not sure the reason of the panic (bug in
> > the patches or bug in mainline kernel?) Do you have some pointers to
> > diagnostic and fix the issue?
> > 
> > [ 5391.004745] CPU 1 Unable to handle kernel paging request at virtual address 000000000040007e, era == 90000000003aa07c, ra == 90000000003aa84c

/* snip */

> We also found that the latest github kernel has some stable issues,
> and we are investigating.

I rebased the patches onto 438645193e59e91761ccb3fa55f6ce70b615ff93 and
the problem *seems* gone.  Not sure if it's something fixed in the
mainline or some more strange thing.
-- 
Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx>
School of Aerospace Science and Technology, Xidian University