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authorGreentime Hu <greentime@andestech.com>2018-08-23 14:47:43 +0800
committerGreentime Hu <greentime@andestech.com>2018-09-04 14:45:19 +0800
commit487c4b2323b26cfb5fd4d77d3605a92c182b6288 (patch)
tree988940583f5055284a7f12543d8385c72bc35fc3
parent95f93ed7fe92c16f5346e477491d91e4fa8e92b8 (diff)
downloadlinux-487c4b2323b26cfb5fd4d77d3605a92c182b6288.tar.bz2
nds32: Only print one page of stack when die to prevent printing too much information.
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 <greentime@andestech.com>
-rw-r--r--arch/nds32/kernel/traps.c5
1 files 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();
}