Re: [PATCH 6.6 000/113] 6.6.91-rc2 review

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Wed, May 14, 2025 at 01:47:15PM -0700, Guenter Roeck wrote:
> On 5/14/25 13:05, Greg Kroah-Hartman wrote:
> > On Thu, May 15, 2025 at 12:29:40AM +0530, Harshit Mogalapalli wrote:
> > > Hi Greg,
> > > On 14/05/25 18:34, Greg Kroah-Hartman wrote:
> > > > This is the start of the stable review cycle for the 6.6.91 release.
> > > > There are 113 patches in this series, all will be posted as a response
> > > > to this one.  If anyone has any issues with these being applied, please
> > > > let me know.
> > > > 
> > > > Responses should be made by Fri, 16 May 2025 12:55:38 +0000.
> > > > Anything received after that time might be too late.
> > > 
> > > ld: vmlinux.o: in function `patch_retpoline':
> > > alternative.c:(.text+0x3b6f1): undefined reference to `module_alloc'
> > > make[2]: *** [scripts/Makefile.vmlinux:37: vmlinux] Error 1
> > > 
> > > We see this build error in 6.6.91-rc2 tag.
> > 
> > What is odd about your .config?  Have a link to it?  I can't duplicate
> > it here on my builds.
> > 
> 
> Start with allnoconfig and add configuration flags until CONFIG_MITIGATION_ITS
> is enabled while CONFIG_MODULES is still disabled. Adding
> 
> CONFIG_64BIT=y
> CONFIG_CPU_MITIGATIONS=y
> CONFIG_RETHUNK=y
> 
> followed by "make olddefconfig" should do.

Thanks for that.  Luckily I don't think that CONFIG_MODULES is a common
config :)

Let's see if we can figure out a fix for this now...

greg k-h