On Thu, 2025-10-02 at 08:23 +0000, Nam Cao wrote:

There is no page fault without MMU. Compiling the rtapp/pagefault monitor without CONFIG_MMU fails as page fault tracepoints' definitions are not available.

Make rtapp/pagefault monitor depends on CONFIG_MMU.

Makes sense.

Reviewed-by: Gabriele Monaco gmonaco@redhat.com

Thanks, Gabriele

Fixes: 9162620eb604 ("rv: Add rtapp_pagefault monitor") Signed-off-by: Nam Cao namcao@linutronix.de Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202509260455.6Z9Vkty4-lkp@intel.com/ Cc: stable@vger.kernel.org

---

kernel/trace/rv/monitors/pagefault/Kconfig | 1 +  1 file changed, 1 insertion(+)

diff --git a/kernel/trace/rv/monitors/pagefault/Kconfig b/kernel/trace/rv/monitors/pagefault/Kconfig index 5e16625f1653..0e013f00c33b 100644 --- a/kernel/trace/rv/monitors/pagefault/Kconfig +++ b/kernel/trace/rv/monitors/pagefault/Kconfig @@ -5,6 +5,7 @@ config RV_MON_PAGEFAULT   select RV_LTL_MONITOR   depends on RV_MON_RTAPP   depends on X86 || RISCV

• depends on MMU

default y   select LTL_MON_EVENTS_ID   bool "pagefault monitor"