Re: [PATCH] pstore/ftrace: Factor KASLR offset in the core kernel instruction addresses

[Kees Cook <kees@kernel.org>]

On Tue, Apr 07, 2026 at 11:58:56AM +0800, kernel test robot wrote:
> Hi Guilherme,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on kees/for-next/pstore]
> [also build test ERROR on kees/for-next/kspp linus/master v7.0-rc6 next-20260403]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Guilherme-G-Piccoli/pstore-ftrace-Factor-KASLR-offset-in-the-core-kernel-instruction-addresses/20260315-152241
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/pstore
> patch link:    https://lore.kernel.org/r/20260313201010.1622406-3-gpiccoli%40igalia.com
> patch subject: [PATCH] pstore/ftrace: Factor KASLR offset in the core kernel instruction addresses
> config: parisc-allmodconfig (https://download.01.org/0day-ci/archive/20260405/202604051301.skV8JLnH-lkp@intel.com/config)
> compiler: hppa-linux-gcc (GCC) 15.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260405/202604051301.skV8JLnH-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202604051301.skV8JLnH-lkp@intel.com/
> 
> All errors (new ones prefixed by >>, old ones prefixed by <<):
> 
> >> ERROR: modpost: "core_kernel_text" [fs/pstore/pstore.ko] undefined!

Oops, doing a modular PSTORE build shows this error even with v2. I've dropped the
patch from the tree for now.

-Kees

-- 
Kees Cook