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

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Message-ID: <CAGcaFA2Htgu8w6S_Zuz2zn3FwpaetZRbY8n0CWEdh07YfMO==A@mail.gmail.com>
Date: Sun, 5 Jan 2025 13:52:27 +0100
From: Marek Maślanka <mmaslanka@...gle.com>
To: Luis Chamberlain <mcgrof@...nel.org>
Cc: Jürgen Groß <jgross@...e.com>, 
	Adam Williamson <awilliam@...hat.com>, Andrew Cooper <andrew.cooper3@...rix.com>, 
	lorenzo.stoakes@...cle.com, akpm@...ux-foundation.org, 
	anton.ivanov@...bridgegreys.com, bp@...en8.de, brendan.higgins@...ux.dev, 
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	tglx@...utronix.de, x86@...nel.org, 
	Marek Marczykowski-Górecki <marmarek@...isiblethingslab.com>
Subject: Re: [PATCH 6/8] modules: switch to execmem API for remapping as RW
 and restoring ROX

On Sat, Jan 4, 2025 at 3:07 AM Luis Chamberlain <mcgrof@...nel.org> wrote:
>
> On Fri, Jan 03, 2025 at 07:58:13AM +0100, Jürgen Groß wrote:
> > On 03.01.25 03:06, Andrew Cooper 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).
> >
> > Now sent out:
> >
> > https://lore.kernel.org/lkml/20250103065631.26459-1-jgross@suse.com/T/#u
>
> Thanks,
>
> Marek, Adam, can you try this patch? Although the reply here is for
> another future series being worked on the fix is for commit
> 2e45474ab14f ("execmem: add support for cache of large ROX pages").
>
>   Luis

Hi Luis,

I suppose you're referring to the issue described here
https://lore.kernel.org/linux-mm/CAGcaFA2hdThQV6mjD_1_U+GNHThv84+MQvMWLgEuX+LVbAyDxg@mail.gmail.com/T/
Unfortnuetly this patch didn't help.

Best,
Marek