linux-kernel - Re: [PATCH] RISC-V: Clear load reservations while restoring hart contexts

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Message-ID: <20190927222401.GE4700@infradead.org>
Date:   Fri, 27 Sep 2019 15:24:01 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Palmer Dabbelt <palmer@...ive.com>
Cc:     linux-riscv@...ts.infradead.org, mark.rutland@....com,
        me@...losedp.com, linux-kernel@...r.kernel.org, joel@...g.id.au,
        marco@...red.org
Subject: Re: [PATCH] RISC-V: Clear load reservations while restoring hart
 contexts

On Tue, Sep 24, 2019 at 05:15:56PM -0700, Palmer Dabbelt wrote:
> This is almost entirely a comment.  The bug is unlikely to manifest on
> existing hardware because there is a timeout on load reservations, but
> manifests on QEMU because there is no timeout.

Given how many different lines of RISC-V hardware are around how do
you know it doesn't affect any existing hardware?

Except for that the patch looks fine to me:

Reviewed-by: Christoph Hellwig <hch@....de>