[PATCH 1/3] nds32: Only print one page of stack when die to prevent printing too much information.

[Greentime Hu]

It may print too much information sometimes if the stack is wrong or
too big. This patch can limit the debug information in a page of stack.

Signed-off-by: Greentime Hu <greent...@andestech.com>
---
 arch/nds32/kernel/traps.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c
index b0b85b7ab079..1496aab48998 100644
--- a/arch/nds32/kernel/traps.c
+++ b/arch/nds32/kernel/traps.c
@@ -173,11 +173,10 @@ void die(const char *str, struct pt_regs *regs, int err)
        pr_emerg("CPU: %i\n", smp_processor_id());
        show_regs(regs);
        pr_emerg("Process %s (pid: %d, stack limit = 0x%p)\n",
-                tsk->comm, tsk->pid, task_thread_info(tsk) + 1);
+                tsk->comm, tsk->pid, end_of_stack(tsk));
 
        if (!user_mode(regs) || in_interrupt()) {
-               dump_mem("Stack: ", regs->sp,
-                        THREAD_SIZE + (unsigned long)task_thread_info(tsk));
+               dump_mem("Stack: ", regs->sp, (regs->sp + PAGE_SIZE) & 
PAGE_MASK);
                dump_instr(regs);
                dump_stack();
        }
-- 
2.18.0