From 4b01abdb32fc36abe877503bfbd33019159fad71 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Tue, 2 Jan 2018 14:00:32 -0500 Subject: [PATCH] alpha: fix formating of stack content Since version 4.9, the kernel automatically breaks printk calls into multiple newlines unless pr_cont is used. Fix the alpha stacktrace code, so that it prints stack trace in four columns, as it was initially intended. Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org # v4.9+ Signed-off-by: Matt Turner --- arch/alpha/kernel/traps.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 4bd99a7..f43bd05 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -160,11 +160,16 @@ void show_stack(struct task_struct *task, unsigned long *sp) for(i=0; i < kstack_depth_to_print; i++) { if (((long) stack & (THREAD_SIZE-1)) == 0) break; - if (i && ((i % 4) == 0)) - printk("\n "); - printk("%016lx ", *stack++); + if ((i % 4) == 0) { + if (i) + pr_cont("\n"); + printk(" "); + } else { + pr_cont(" "); + } + pr_cont("%016lx", *stack++); } - printk("\n"); + pr_cont("\n"); dik_show_trace(sp); } -- 2.7.4