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 <[email protected]> Cc: [email protected] # v4.9+ --- arch/alpha/kernel/traps.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) Index: linux-stable/arch/alpha/kernel/traps.c =================================================================== --- linux-stable.orig/arch/alpha/kernel/traps.c 2017-12-30 11:37:13.000000000 +0100 +++ linux-stable/arch/alpha/kernel/traps.c 2017-12-30 11:47:29.000000000 +0100 @@ -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); } -- To unsubscribe from this list: send the line "unsubscribe linux-alpha" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
