linux-kernel - Re: [PATCH 6/8] modules: switch to execmem API for remapping as RW and restoring ROX

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Message-Id: <20250102215714.a37e828cf073ea6a14d30559@linux-foundation.org>
Date: Thu, 2 Jan 2025 21:57:14 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Andrew Cooper <andrew.cooper3@...rix.com>
Cc: lorenzo.stoakes@...cle.com, anton.ivanov@...bridgegreys.com,
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 tglx@...utronix.de, x86@...nel.org, Juergen Gross <jgross@...e.com>, Marek
 Marczykowski-Górecki <marmarek@...isiblethingslab.com>
Subject: Re: [PATCH 6/8] modules: switch to execmem API for remapping as RW
 and restoring ROX

On Fri, 3 Jan 2025 02:06:10 +0000 Andrew Cooper <andrew.cooper3@...rix.com> wrote:

> > Hi Mike,
> >
> > This commit is making my intel box not boot in mm-unstable :>) I bisected it to
> > this commit.
> 
> For what it's worth, we've found the same under Xen too.
> 
> There's one concrete bug in the series, failing to cope with the absence
> of superpages (fix in
> https://lore.kernel.org/xen-devel/6bb03333-74ca-4c2c-85a8-72549b85a5b4@suse.com/
> but not formally posted yet AFAICT).
> 
> The rest of the thread then found a crash looking to be the same as
> reported here, but you've made better progress narrowing it down than we
> have.
> 

Thanks.  I removed this series from mm.git while this is worked on.