linux-kernel - Re: [PATCH 6.4 00/29] 6.4.1-rc2 review

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Date:   Thu, 29 Jun 2023 23:20:45 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     stable@...r.kernel.org, patches@...ts.linux.dev,
        linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, sudipm.mukherjee@...il.com,
        srw@...dewatkins.net, rwarsow@....de, conor@...nel.org
Subject: Re: [PATCH 6.4 00/29] 6.4.1-rc2 review

On Thu, 29 Jun 2023 at 22:59, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> Linus Torvalds <torvalds@...ux-foundation.org>
>     gup: add warning if some caller would seem to want stack expansion

Did you decide to take that one after all?

It's not exactly wrong, and it might help find any odd cases, but I do
suspect you can get syzbot etc to trigger the warning. It's designed
to find crazy users, and syzbot is - pretty much by definition and by
design - one of the craziest out there.

            Linus