linux-kernel - Re: [LKP] [rcu] BUG: kernel_boot

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Date:	Sun, 26 Oct 2014 19:51:44 -0700
From:	Joe Perches <joe@...ches.com>
To:	kernel test robot <fengguang.wu@...el.com>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>, lkp@...org,
	Pranith Kumar <bobby.prani@...il.com>
Subject: Re: [LKP] [rcu] BUG: kernel_boot_hang mode:0x10d0

On Mon, 2014-10-27 at 10:04 +0800, kernel test robot wrote:
> FYI, we noticed the below changes on
> 
> commit eea203fea3484598280a07fe503e025e886297fb ("rcu: Use pr_alert/pr_cont for printing logs")
> 
> 
> +------------------------------------------------------------------+------------+------------+
> |                                                                  | 188c1e896c | eea203fea3 |
> +------------------------------------------------------------------+------------+------------+
> | boot_successes                                                   | 0          | 2          |
> | boot_failures                                                    | 15         | 13         |
> | page_allocation_failure:order:,mode:x10d0                        | 15         | 13         |
> | Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 15         |            |
> | backtrace:ring_buffer_consumer_thread                            | 15         | 13         |
> | backtrace:rcu_torture_stats                                      | 15         |            |
> | BUG:kernel_boot_hang                                             | 0          | 13         |
> +------------------------------------------------------------------+------------+------------+

I've no good idea why this change should cause any issue.


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