Thanks for reading my suggestion. I found that the array for task stack entries when doing livepatch function check is too large which seems to be unnecessary. Therefore, I suggest to fix the MAX_STACK_ENTRIES from 100 to 32. The patch is as follows: >From ee27da5e64daced159257f54170a31141e943710 Mon Sep 17 00:00:00 2001 From: Yongde Zhang <ydzhang@xxxxxxxxxxxxxxxxx> Date: Sat, 8 Jul 2023 09:40:50 +0800 Subject: [PATCH] Fix MAX_STACK_ENTRIES to 32 When checking the task stack, using an stack array of size 100 seems to be to large for a task stack. Therefore, I suggest to change the stack size from 100 to 32. Signed-off-by: Yongde Zhang <ydzhang@xxxxxxxxxxxxxxxxx> --- kernel/livepatch/transition.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c index e54c3d60a904..8d61c62b0c27 100644 --- a/kernel/livepatch/transition.c +++ b/kernel/livepatch/transition.c @@ -14,7 +14,7 @@ #include "patch.h" #include "transition.h" -#define MAX_STACK_ENTRIES 100 +#define MAX_STACK_ENTRIES 32 static DEFINE_PER_CPU(unsigned long[MAX_STACK_ENTRIES], klp_stack_entries); #define STACK_ERR_BUF_SIZE 128 -- 2.37.3
