linux-kernel - Re: [linus:master] [kconfig] f79dc03fe6: segfault_at_ip_sp

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Message-ID: <ZrVtEbZjRYmCGS5t@xsang-OptiPlex-9020>
Date: Fri, 9 Aug 2024 09:12:49 +0800
From: Oliver Sang <oliver.sang@...el.com>
To: Masahiro Yamada <masahiroy@...nel.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
	<linux-kbuild@...r.kernel.org>
Subject: Re: [linus:master] [kconfig] f79dc03fe6: segfault_at_ip_sp_error

hi, Masahiro Yamada,

On Thu, Aug 08, 2024 at 05:27:40PM +0900, Masahiro Yamada wrote:

[...]

> See this line in the error report:
> 
> [   15.209351][  T483] depmod[483]: segfault at 0 ip b7abe4f6 sp
> bfb00aa4 error 4 in libc-2.31.so[8c4f6,b7a4b000+155000] likely on CPU
> 0 (core 0, socket 0)
> 
> > > What is your depmod (kmod) version?
> >
> > our kmod version is 28
> 
> See this again:
> https://lore.kernel.org/linux-kbuild/E1rNVlL-000qDm-Pg@rmk-PC.armlinux.org.uk/
> 
> It clearly explains when the issue happens:
> 
>  When using the SHA3 module signing options, kmod 28 segfaults during
>  "make modules_install" on the build host.
> 
> If you are using kmod 28, upgrading it will presumably fix the issue.

thanks a lot for guidance! we will follow this.

> > >
> > > The crash of kmod<=28 with CONFIG_MODULE_SIG_SHA3_384=y is a known issue:
> > >
> > > https://lore.kernel.org/linux-kbuild/E1rNVlL-000qDm-Pg@rmk-PC.armlinux.org.uk/
> > >