Re: [PATCH] risc-v: Fix order of IPI enablement vs RCU startup

Palmer Dabbelt
2023-07-05T23:41:01Z

On Mon, 03 Jul 2023 19:31:26 +0100, Marc Zyngier wrote:
> Conor reports that risc-v tries to enable IPIs before telling the
> core code to enable RCU. With the introduction of the mapple tree
> as a backing store for the irq descriptors, this results in
> a very shouty boot sequence, as RCU is legitimately upset.
>
> Restore some sanity by moving the risc_ipi_enable() call after
> notify_cpu_starting(), which explicitly enables RCU on the calling
> CPU.
>
> [...]

Applied, thanks!

[1/1] risc-v: Fix order of IPI enablement vs RCU startup
https://git.kernel.org/palmer/c/6259f3443c6a

Best regards,
--
Palmer Dabbelt <palmer@rivosinc.com>