From: Mateusz Jończyk <mat.jonczyk@o2.pl>

I wonder how many people were checking their glibc version when
considering whether to enable this option.

Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Signed-off-by: David Heidelberg <david@ixit.cz>
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ba6ba3a7011554d9cb58fb0acf48d541da8ed69b..22dd962f8e5c86741a512e12596bd940cd1dae97 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2225,7 +2225,7 @@ config HOTPLUG_CPU
 
 config COMPAT_VDSO
 	def_bool n
-	prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
+	prompt "Workaround for glibc 2.3.2 / 2.3.3 (released in year 2003/2004)"
 	depends on COMPAT_32
 	help
 	  Certain buggy versions of glibc will crash if they are

-- 
2.49.0

* David Heidelberg via B4 Relay <devnull+david.ixit.cz@kernel.org> wrote:

> From: Mateusz Jończyk <mat.jonczyk@o2.pl>
> 
> I wonder how many people were checking their glibc version when
> considering whether to enable this option.
> 
> Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
> Signed-off-by: David Heidelberg <david@ixit.cz>
> ---
>  arch/x86/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index ba6ba3a7011554d9cb58fb0acf48d541da8ed69b..22dd962f8e5c86741a512e12596bd940cd1dae97 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -2225,7 +2225,7 @@ config HOTPLUG_CPU
>  
>  config COMPAT_VDSO
>  	def_bool n
> -	prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
> +	prompt "Workaround for glibc 2.3.2 / 2.3.3 (released in year 2003/2004)"
>  	depends on COMPAT_32
>  	help
>  	  Certain buggy versions of glibc will crash if they are

So I applied this patch, because it's an obvious improvement over the
status quo - but I think we should finally remove COMPAT_VDSO...

Thanks,

	Ingo

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     de7115636c41fd0c654f5865d513df52a0798f5c
Gitweb:        https://git.kernel.org/tip/de7115636c41fd0c654f5865d513df52a0798f5c
Author:        Mateusz Jończyk <mat.jonczyk@o2.pl>
AuthorDate:    Fri, 21 Mar 2025 21:48:49 +01:00
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Sat, 22 Mar 2025 08:08:57 +01:00

x86/Kconfig: Document release year of glibc 2.3.3

I wonder how many people were checking their glibc version when
considering whether to enable this option.

Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250321-x86_x2apic-v3-7-b0cbaa6fa338@ixit.cz
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1090eda..e72cb77 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2213,7 +2213,7 @@ config HOTPLUG_CPU
 
 config COMPAT_VDSO
 	def_bool n
-	prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
+	prompt "Workaround for glibc 2.3.2 / 2.3.3 (released in year 2003/2004)"
 	depends on COMPAT_32
 	help
 	  Certain buggy versions of glibc will crash if they are