From: Heiko Carstens <hca@linux.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: kernel test robot <lkp@intel.com>, Marco Elver <elver@google.com>,
llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: Re: [peterz-queue:locking/core 34/39] WARNING: modpost: EXPORT symbol "stack_depot_save_flags" [vmlinux] version generation failed, symbol will not be versioned.
Date: Wed, 7 Jan 2026 12:46:08 +0100 [thread overview]
Message-ID: <20260107114608.10536C6a-hca@linux.ibm.com> (raw)
In-Reply-To: <20260105153520.GV3707891@noisy.programming.kicks-ass.net>
On Mon, Jan 05, 2026 at 04:35:20PM +0100, Peter Zijlstra wrote:
> > commit: ee771bab5add646af678f7a40b6272c21a0964d7 [34/39] stackdepot: Enable context analysis
> > All warnings (new ones prefixed by >>, old ones prefixed by <<):
> >
> > >> WARNING: modpost: EXPORT symbol "stack_depot_save_flags" [vmlinux] version generation failed, symbol will not be versioned.
> > Is "stack_depot_save_flags" prototyped in <asm/asm-prototypes.h>?
> > >> WARNING: modpost: EXPORT symbol "stack_depot_save" [vmlinux] version generation failed, symbol will not be versioned.
> > Is "stack_depot_save" prototyped in <asm/asm-prototypes.h>?
>
> Heiko, I'm seeing these warnings, and I can reproduce in a local build.
> But I have to note that its just one more of an already existing string
> of similar failures.
>
> I don't see anything like this on x86, not have I had robot reports for
> other architectures. As such, I'm considering this a pre-existing s390
> issue.
>
> Please let me know if this is something you want me to look at
> nevertheless.
Sorry, to be more precise: I haven't seen anything like this before on s390.
All other occurences are also new and come with EXPORT_SYMBOL statements
within files where context analysis has been enabled.
When enabling CONFIG_MODVERSIONS I see this also for x86 builds.
I assume you cannot see this error pattern for s390 builds with
context analysis disabled?
next prev parent reply other threads:[~2026-01-07 11:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-22 14:11 [peterz-queue:locking/core 34/39] WARNING: modpost: EXPORT symbol "stack_depot_save_flags" [vmlinux] version generation failed, symbol will not be versioned kernel test robot
2026-01-05 15:35 ` Peter Zijlstra
2026-01-07 11:39 ` Heiko Carstens
2026-01-07 11:46 ` Heiko Carstens [this message]
2026-01-07 20:45 ` Nathan Chancellor
2026-01-07 22:35 ` Marco Elver
2026-01-07 22:56 ` Nathan Chancellor
2026-01-08 7:51 ` Peter Zijlstra
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