[riscv-port] RFR: 8279664: riscv: JFR crashes at 0x0 [v3]

[Xiaolin Zheng]

On Fri, 21 Jan 2022 03:14:52 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Thanks for the suggestion, changed.
>
> I think it's better to go like this:
> 
>   // Stack frame creation/removal
>   // Note that SP must be updated to the right place before saving/restoring RA and FP
>   // because signal based thread suspend/resume could happen asynchronously.

Thank you, changed.

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PR: https://git.openjdk.java.net/riscv-port/pull/49