linux-kernel - Re: [printk] fbc14616f4: BUG:kernel_reboot-without-warning_in_test

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Date:   Fri, 31 Mar 2017 11:35:06 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     kernel test robot <xiaolong.ye@...el.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Petr Mladek <pmladek@...e.com>, Jan Kara <jack@...e.cz>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Eric Biederman <ebiederm@...ssion.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, Pavel Machek <pavel@....cz>,
        Len Brown <len.brown@...el.com>, linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        lkp@...org
Subject: Re: [printk]  fbc14616f4:
 BUG:kernel_reboot-without-warning_in_test_stage

On (03/31/17 05:38), kernel test robot wrote:
> FYI, we noticed the following commit:
> 
> commit: fbc14616f483788afabe77d05bfb99883dc66c73 ("printk: enable printk offloading")
> url: https://github.com/0day-ci/linux/commits/Sergey-Senozhatsky/printk-introduce-printing-kernel-thread/20170330-185752

thanks for the report!

[..]
> +-------------------------------------------------+------------+------------+
> |                                                 | fd8b6b120c | fbc14616f4 |
> +-------------------------------------------------+------------+------------+
> | boot_successes                                  | 8          | 8          |
> | boot_failures                                   | 0          | 6          |
> | BUG:kernel_reboot-without-warning_in_test_stage | 0          | 4          |
> | BUG:kernel_hang_in_test_stage                   | 0          | 2          |
> +-------------------------------------------------+------------+------------+
> 
> 
> 
> [   21.009531] VFS: Warning: trinity-c2 using old stat() call. Recompile your binary.
> [   21.148898] VFS: Warning: trinity-c0 using old stat() call. Recompile your binary.
> [   22.298208] warning: process `trinity-c2' used the deprecated sysctl system call with 
> 
> Elapsed time: 310
> BUG: kernel reboot-without-warning in test stage

so as far as I understand, this is the "missing kernel messages"
type of bug report. a worst case scenario.

	-ss