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Message-ID: <1500628509.29303.161.camel@linux.intel.com>
Subject: Re: [lkp-robot] [include/linux/string.h] 6974f0c455:
 kernel_BUG_at_lib/string.c
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Ye Xiaolong <xiaolong.ye@intel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        pmladek@suse.com
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Daniel Micay <danielmicay@gmail.com>,
        Kees Cook <keescook@chromium.org>, Arnd Bergmann <arnd@arndb.de>,
        Mark Rutland <mark.rutland@arm.com>, Daniel Axtens <dja@axtens.net>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        Chris Metcalf <cmetcalf@ezchip.com>,
        Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>,
        Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@linux-foundation.org>,
        LKML <linux-kernel@vger.kernel.org>, LKP <lkp@01.org>
Date: Fri, 21 Jul 2017 12:15:09 +0300
In-Reply-To: <20170721015941.GB9355@yexl-desktop>
References: <20170720014238.GH27396@yexl-desktop>
         <CA+55aFwuebKQ0-sAiRJWpMcaVJ8MjXvCg56DO5q8jMiPDXvc8A@mail.gmail.com>
         <20170721015941.GB9355@yexl-desktop>
Organization: Intel Finland Oy
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On Fri, 2017-07-21 at 09:59 +0800, Ye Xiaolong wrote:
> Hi,
> 
> On 07/19, Linus Torvalds wrote:
> > Hmm. I wonder why the kernel test robot ends up having that annoying
> > line doubling for the dmesg.
> > 
> 
> Hmm, this line doubling issue should be caused by we set both
> 'earlyprintk=ttyS0,115200' and 'console=ttyS0,115200' in cmdline,
> after I
> remove any of it, this issue is gone, is it an inappropriate setting?


I think this problem is being discussed for a long time.

+Cc: Petr and Sergey

> 
> FYI, the whole kernel command line is:
> 
> ip=::::vm-lkp-nhm-dp1-yocto-i386-7::dhcp
> root=/dev/ram0
> user=lkp
> job=/lkp/scheduled/vm-lkp-nhm-dp1-yocto-i386-7/boot-1-yocto-tiny-i386-
> 2016-04-22.cgz-6974f0c4555e285ab217cee58b6e874f776ff409-20170717-
> 28286-131pyzw-0.yaml
> ARCH=i386
> kconfig=i386-randconfig-w0-07171351
> branch=linus/master
> commit=6974f0c4555e285ab217cee58b6e874f776ff409
> BOOT_IMAGE=/pkg/linux/i386-randconfig-w0-07171351/gcc-
> 6/6974f0c4555e285ab217cee58b6e874f776ff409/vmlinuz-4.12.0-10998-
> g6974f0c
> max_uptime=600
> RESULT_ROOT=/result/boot/1/vm-lkp-nhm-dp1-yocto-i386/yocto-tiny-i386-
> 2016-04-22.cgz/i386-randconfig-w0-07171351/gcc-
> 6/6974f0c4555e285ab217cee58b6e874f776ff409/0
> LKP_SERVER=inn
> debug
> apic=debug
> sysrq_always_enabled
> rcupdate.rcu_cpu_stall_timeout=100
> net.ifnames=0
> printk.devkmsg=on
> panic=-1
> softlockup_panic=1
> nmi_watchdog=panic
> oops=panic
> load_ramdisk=2
> prompt_ramdisk=0
> drbd.minor_count=8
> systemd.log_level=err
> ignore_loglevel
> earlyprintk=ttyS0,115200
> console=ttyS0,115200
> console=tty0
> vga=
> 
> Thanks,
> Xiaolong

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy