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