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nds32: Only print one page of stack when die to prevent printing too much information.

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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>
This commit is contained in:
Greentime Hu 2018-08-23 14:47:43 +08:00
parent 95f93ed7fe
commit 487c4b2323
1 changed files with 2 additions and 3 deletions
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5
arch/nds32/kernel/traps.c
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@ -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();
}