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? 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
