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Commit 242f841e authored by Andy Lutomirski's avatar Andy Lutomirski Committed by Zubin Mithra
Browse files

UPSTREAM: printk: when dumping regs, show the stack, not thread_info 

We currently show:

  task: <current> ti: <current_thread_info()> task.ti: <task_thread_info(current)>"

"ti" and "task.ti" are redundant, and neither is actually what we want
to show, which the the base of the thread stack.  Change the display to
show the stack pointer explicitly.

Link: http://lkml.kernel.org/r/543ac5bd66ff94000a57a02e11af7239571a3055.1468523549.git.luto@kernel.org


Signed-off-by: default avatarAndy Lutomirski <luto@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>

Bug: 38331309
Change-Id: I7d4b915d38770d0c9384695b2064e4c66b22e94e
(cherry picked from commit 8b70ca65616b3588ea1907e87f0df6d2530350df)
Signed-off-by: default avatarZubin Mithra <zsm@google.com>
parent f707c0f9

kernel/printk/printk.c

+2 −3
Original line number Diff line number Diff line
@@ -3176,9 +3176,8 @@ void show_regs_print_info(const char *log_lvl) 
{

	dump_stack_print_info(log_lvl);



	printk("%stask: %p ti: %p task.ti: %p\n",

	       log_lvl, current, current_thread_info(),

	       task_thread_info(current));

	printk("%stask: %p task.stack: %p\n",

	       log_lvl, current, task_stack_page(current));

}



#endif