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alpha: fix formating of stack content

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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>
Cc: stable@vger.kernel.org	# v4.9+
Signed-off-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Mikulas Patocka 2018-01-02 14:00:32 -05:00 committed by Matt Turner
parent 55fc633c41
commit 4b01abdb32
1 changed files with 9 additions and 4 deletions
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13
arch/alpha/kernel/traps.c
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@ -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);
}