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

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Message-ID: <Z3fClUqJ_sMp1HL9@mail-itl>
Date: Fri, 3 Jan 2025 11:57:25 +0100
From: Marek Marczykowski-Górecki <marmarek@...isiblethingslab.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Andrew Cooper <andrew.cooper3@...rix.com>, lorenzo.stoakes@...cle.com,
	anton.ivanov@...bridgegreys.com, bp@...en8.de,	brendan.higgins@...ux.dev,
 da.gomez@...sung.com, danielt@...nel.org,	dave.hansen@...ux.intel.com,
 davidgow@...gle.com,	dianders@...omium.org, hpa@...or.com,
 jason.wessel@...driver.com,	jikos@...nel.org, joe.lawrence@...hat.com,
	johannes@...solutions.net, jpoimboe@...nel.org,
	kgdb-bugreport@...ts.sourceforge.net,	kirill.shutemov@...ux.intel.com,
 kunit-dev@...glegroups.com,	linux-kernel@...r.kernel.org,
 linux-kselftest@...r.kernel.org,	linux-mm@...ck.org,
 linux-modules@...r.kernel.org,	linux-trace-kernel@...r.kernel.org,
 linux-um@...ts.infradead.org,	live-patching@...r.kernel.org,
 luto@...nel.org,	mark.rutland@....com, mbenes@...e.cz, mcgrof@...nel.org,
	mhiramat@...nel.org, mingo@...hat.com, peterz@...radead.org,
	petr.pavlu@...e.com, pmladek@...e.com, richard@....at,	rmoar@...gle.com,
 rostedt@...dmis.org, rppt@...nel.org,	samitolvanen@...gle.com,
 shuah@...nel.org, song@...nel.org,	tglx@...utronix.de, x86@...nel.org,
 Juergen Gross <jgross@...e.com>
Subject: Re: [PATCH 6/8] modules: switch to execmem API for remapping as RW
 and restoring ROX

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On Thu, Jan 02, 2025 at 09:57:14PM -0800, Andrew Morton wrote:
> 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.

The issue under Xen that Andrew linked happens on 6.13-rc5 which AFAICT
doesn't this series yet. So, it's probably a different issue.

- -- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
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