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From: "Arnd Bergmann" <arnd@arndb.de>
To: "kernel test robot" <lkp@intel.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
	"Borislav Petkov" <bp@alien8.de>
Subject: Re: WARNING: modpost: "cmpxchg8b_emu" [lib/test_lockup.ko] has no CRC!
Date: Mon, 18 Mar 2024 15:25:22 +0100	[thread overview]
Message-ID: <c9eecda1-a8e2-4ded-89fb-a2cc98d4c19a@app.fastmail.com> (raw)
In-Reply-To: <202403182122.G6VFSE9v-lkp@intel.com>

On Mon, Mar 18, 2024, at 14:27, kernel test robot wrote:
> tree:   
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
> master
> head:   f6cef5f8c37f58a3bc95b3754c3ae98e086631ca
> commit: 88a2b4edda3d0709727be53f4423b0b832d91de3 x86/Kconfig: Rework 
> CONFIG_X86_PAE dependency
> date:   3 months ago
> config: um-randconfig-r035-20230726 

> WARNING: modpost: EXPORT symbol "cmpxchg8b_emu" [vmlinux] version 
> generation failed, symbol will not be versioned.
> Is "cmpxchg8b_emu" prototyped in <asm/asm-prototypes.h>?
> WARNING: modpost: EXPORT symbol "csum_partial" [vmlinux] version 
> generation failed, symbol will not be versioned.
> Is "csum_partial" prototyped in <asm/asm-prototypes.h>?
> WARNING: modpost: EXPORT symbol "csum_partial_copy_generic" [vmlinux] 
> version generation failed, symbol will not be versioned.
> Is "csum_partial_copy_generic" prototyped in <asm/asm-prototypes.h>?
>>> WARNING: modpost: "cmpxchg8b_emu" [lib/test_lockup.ko] has no CRC!
>>> WARNING: modpost: "cmpxchg8b_emu" [lib/atomic64_test.ko] has no CRC!

I have not tested arch/um randconfig builds, but my guess is that
this was not actually introduced by my patch but rather lkp bisected
this into my commit because that changed the config in a way that
hides the preexisting bug on older kernels.

      Arnd

      reply	other threads:[~2024-03-18 14:25 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-18 13:27 WARNING: modpost: "cmpxchg8b_emu" [lib/test_lockup.ko] has no CRC! kernel test robot
2024-03-18 14:25 ` Arnd Bergmann [this message]

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