Re: [PATCH] riscv: entry: Fixup do_trap_break from kernel side

[Daniel Thompson]

On Sat, Jul 01, 2023 at 10:57:07PM -0400, guoren@xxxxxxxxxx wrote:
> From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
>
> The irqentry_nmi_enter/exit would force the current context into in_interrupt.
> That would trigger the kernel to dead panic, but the kdb still needs "ebreak" to
> debug the kernel.
>
> Move irqentry_nmi_enter/exit to exception_enter/exit could correct handle_break
> of the kernel side.

<snip>

> Fixes: f0bddf50586d ("riscv: entry: Convert to generic entry")
> Reported-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
> Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Guo Ren <guoren@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx

I pushed this though the kgdb test suite that originally found the
problem (although it didn't occur to me when I reported it that
the problem was nothing to do with kgdb ;-) ). So FWIW:

Tested-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>


Daniel.