Commit e909be82 authored by Vincent Wen's avatar Vincent Wen Committed by Ralf Baechle

MIPS: Fix Magic SysRq L kernel crash.

show_backtrace() was passed a NULL pointer which caused paging
request fail. Set to current task as other architectures (ARM,
etc) do when passed a NULL task pointer.
Signed-off-by: 's avatarVincent Wen <vincentwenlinux@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: cernekee@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/3524/Signed-off-by: 's avatarRalf Baechle <ralf@linux-mips.org>
parent ca760ca5
......@@ -132,6 +132,9 @@ static void show_backtrace(struct task_struct *task, const struct pt_regs *regs)
unsigned long ra = regs->regs[31];
unsigned long pc = regs->cp0_epc;
if (!task)
task = current;
if (raw_show_trace || !__kernel_text_address(pc)) {
show_raw_backtrace(sp);
return;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment