This is a note to let you know that I've just added the patch titled

alpha: fix formating of stack content

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: alpha-fix-formating-of-stack-content.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 4b01abdb32fc36abe877503bfbd33019159fad71 Mon Sep 17 00:00:00 2001

From: Mikulas Patocka mpatocka@redhat.com Date: Tue, 2 Jan 2018 14:00:32 -0500 Subject: alpha: fix formating of stack content

From: Mikulas Patocka mpatocka@redhat.com

commit 4b01abdb32fc36abe877503bfbd33019159fad71 upstream.

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 mpatocka@redhat.com Signed-off-by: Matt Turner mattst88@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- arch/alpha/kernel/traps.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)

--- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -158,11 +158,16 @@ void show_stack(struct task_struct *task 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); }

Patches currently in stable-queue which might be from mpatocka@redhat.com are

queue-4.9/alpha-fix-formating-of-stack-content.patch queue-4.9/pipe-fix-off-by-one-error-when-checking-buffer-limits.patch queue-4.9/alpha-fix-crash-if-pthread_create-races-with-signal-delivery.patch queue-4.9/pipe-actually-allow-root-to-exceed-the-pipe-buffer-limits.patch queue-4.9/alpha-fix-reboot-on-avanti-platform.patch