On Sat, 11 Jul 2020 at 01:35, Linus Torvalds <[email protected]> wrote: > > On Fri, Jul 10, 2020 at 10:48 AM Naresh Kamboju > <[email protected]> wrote:
I have started bisecting this problem and found the first bad commit commit 9f132f7e145506efc0744426cb338b18a54afc3b Author: Joel Fernandes (Google) <[email protected]> Date: Thu Jan 3 15:28:41 2019 -0800 mm: select HAVE_MOVE_PMD on x86 for faster mremap Moving page-tables at the PMD-level on x86 is known to be safe. Enable this option so that we can do fast mremap when possible. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Joel Fernandes (Google) <[email protected]> Suggested-by: Kirill A. Shutemov <[email protected]> Acked-by: Kirill A. Shutemov <[email protected]> Cc: Julia Lawall <[email protected]> Cc: Michal Hocko <[email protected]> Cc: William Kucharski <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e260460210e1..6185d4f33296 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -172,6 +172,7 @@ config X86 select HAVE_MEMBLOCK_NODE_MAP select HAVE_MIXED_BREAKPOINTS_REGS select HAVE_MOD_ARCH_SPECIFIC + select HAVE_MOVE_PMD select HAVE_NMI select HAVE_OPROFILE select HAVE_OPTPROBES After reverting the above patch the reported kernel warning got fixed on Linus mainline tree 5.8.0-rc4. -- Linaro LKFT https://lkft.linaro.org
