Bug 617

Summary: [routerstation]kernel uses incorrect cmdline
Product: [Yocto Project Subprojects] Kernel Reporter: Yi Zhao <yi.zhao>
Component: kernel-configurationAssignee: Bruce Ashfield <bruce.ashfield>
Status: VERIFIED FIXED QA Contact:
Severity: normal    
Priority: Medium CC: jiajun.xu, liang.li2, liangliang.wang, sgw, yi.zhao, yp.kernel.watcher, yp.watcher
Version: 1.0   
Target Milestone: 1.0 M3   
Hardware: x86   
OS: mips   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: ---

Description Yi Zhao 2010-12-27 02:03:23 UTC 
Testing Env:

Host: Routerstationpro
Kernel: Linux version 2.6.34.7-yocto-standard-00017-g2ec2eda
Image location:
http://autobuilder.pokylinux.org/milestone/20101218-1/qemu/qemurouterstationpro/vmlinux-2.6.34+git0+50ccd2b3213b6a1bacb3f898c035119802dac420_0+2ec2edaf256dd8500ee3d4763fee6ca3ecd6da4b-r0-routerstationpro-20101219134731.bin


I set a kernel cmdline in redboot, in order to get a static ip 

#############
RedBoot> 
RedBoot> fconfig -l
Network hardware address [MAC]: 0x00:0x15:0x6D:0xC5:0xC3:0xAB
Run script at boot: true
Boot script: 
.. load -v vlm-boards/19256/kernel -h 128.224.178.20
.. exec -c "console=ttyS0,115200 root=/dev/nfs rw nfsroot=128.224.178.20:/export/pxeboot/vlm-boards/19256/rootfs ip=128.224.178.128:128.224.178.20:128.224.178.1:255.255.254.0::eth0:off"

Boot script timeout (1000ms resolution): 5
Use BOOTP for network configuration: false
Gateway IP address: 128.224.178.1
Local IP address: 128.224.178.128
Local IP address mask: 255.255.254.0
Default server IP address: 128.224.178.20
Console baud rate: 115200
GDB connection port: 9000
Force console for special debug messages: false
Network debug at boot time: false
RedBoot> 
#############

but it is not available when boot up routerstation hardware with this kernel 

#############
root@routerstationpro:~# uname -a
Linux routerstationpro 2.6.34.7-yocto-standard-00017-g2ec2eda #1 Sun Dec 19 05:46:34 PST 2010 mips GNU/Linux
root@routerstationpro:~# 
root@routerstationpro:~# cat /proc/cmdline 
console=ttyS0,115200 root=/dev/nfs rw nfsroot=128.224.178.20:/export/pxeboot/vlm-boards/19255/rootfs ip=dhcp board=UBNT-RSPRO
#############

more info:
#############
readelf -x .init.data vmlinux-2.6.34+git0+50ccd2b3213b6a1bacb3f898c035119802dac420_0+2ec2edaf256dd8500ee3d4763fee6ca3ecd6da4b-r0-routerstationpro-20101219134731.bin |grep "vlm"

  0x80466888 00000000 00000000 00000000 00000000 ................
  0x80466898 00000000 636f6e73 6f6c653d 74747953 ....console=ttyS
  0x804668a8 302c3131 35323030 20726f6f 743d2f64 0,115200 root=/d
  0x804668b8 65762f6e 66732072 77206e66 73726f6f ev/nfs rw nfsroo
  0x804668c8 743d3132 382e3232 342e3137 382e3230 t=128.224.178.20
  0x804668d8 3a2f6578 706f7274 2f707865 626f6f74 :/export/pxeboot
  0x804668e8 2f766c6d 2d626f61 7264732f 31393235 /vlm-boards/1925
  0x804668f8 352f726f 6f746673 2069703d 64686370 5/rootfs ip=dhcp
  0x80466908 20626f61 72643d55 424e542d 52535052  board=UBNT-RSPR
  0x80466918 4f000000 00000000 00000000 00000000 O...............

################

The kernel uses incorrect cmdline.
Comment 2 Bruce Ashfield 2011-01-04 11:13:29 UTC 
kernel config update to fix this. working on it.
Comment 3 Liang Wang 2011-01-17 22:54:11 UTC 
This defect is fixed on http://autobuilder.pokylinux.org/nightly/20110114-1/machines/routerstationpro/mips/, gitinfo: commit d38ad3271829b2d282c973e69edd265ef52174c8

routerstationpro login: root
login[253]: root login  on `ttyS0'

root@routerstationpro:~# uname -a
Linux routerstationpro 2.6.37-yocto-standard-00332-g2ebf057 #1 Sat Jan 15 16:39:58 PST 2011 mips GNU/Linux
root@routerstationpro:~# 
root@routerstationpro:~# cat /proc/cmdline 
  console=ttyS0,115200 root=/dev/nfs rw nfsroot=128.224.178.20:/export/pxeboot/vlm-boards/19256/rootfs ip=128.224.178.128:128.224.178.20:128.224.178.1:255.255.254.0::eth0:off board=UBNT-RSPRO board=RouterStation PRO ethaddr=00.15.6d.c5.c3.ab
Comment 4 Yi Zhao 2011-03-07 21:16:54 UTC 
VERIFIED it.