From 71f5443ebb1227c22e8decbcd28a1ea6deaf8257 Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Tue, 20 Sep 2016 10:53:40 -0500 Subject: [PATCH] x86/dumpstack: Fix show_stack() task pointer regression With the following commit: e18bcccd1a4e ("x86/dumpstack: Convert show_trace_log_lvl() to use the new unwinder") The task pointer argument to show_stack_log_lvl() in show_stack() was inadvertently changed to 'current'. Signed-off-by: Josh Poimboeuf Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: byungchul.park@lge.com Cc: fweisbec@gmail.com Cc: keescook@chromium.org Cc: linux-tip-commits@vger.kernel.org Cc: luto@amacapital.net Cc: nilayvaish@gmail.com Cc: rostedt@goodmis.org Cc: tip-bot for Josh Poimboeuf Fixes: e18bcccd1a4e ("x86/dumpstack: Convert show_trace_log_lvl() to use the new unwinder") Link: http://lkml.kernel.org/r/20160920155340.yhewlx7vmgmov5fb@treble Signed-off-by: Ingo Molnar --- arch/x86/kernel/dumpstack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 999de3b3f7f4..9b7cf5c28f5f 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -164,7 +164,7 @@ void show_stack(struct task_struct *task, unsigned long *sp) if (!sp && task == current) sp = get_stack_pointer(current, NULL); - show_stack_log_lvl(current, NULL, sp, ""); + show_stack_log_lvl(task, NULL, sp, ""); } void show_stack_regs(struct pt_regs *regs) -- 2.20.1