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I was back home last week after GUADEC in A Coruña, and a week’s vacation after that.

Another post-GUADEC wrap-up. And I’m still processing the many amounts of information,
ideas and discussions in my head. A few things worth sharing:

First it’s the best planned GUADEC in modern history, everything worked properly, thanks for the organizers.

About the talk, the keynote on first day is ‘The Tor Project’ which I never heard it before, I feel it’s very useful in China, :), cause we have GFW,
and I talked with Jacob in ‘Welcome Cocktail Party’ about let the NetworkManager support the tor project, it’s a good idea and I’ll find some time to dig it.

Another interesting talk ‘GNOME online accounts: for users and hackers’  triggers me that we should add support for weibo which is very famous ‘twitter’ in China.

‘How to fix a font’ on 3rd day is very fresh for me, and I ask Willis an font issue which I met in work why Acroread font display unnormal,
but unfortunly not got the solution, 🙂

Another touching talk was the History of GNOME talk given by Jonathan Blandford, Federico Mena Quintero and Dave Mason on last day.
They told the story of the early days of GNOME, and got much applause when showing some dead contributors, it’s really moving.

There are so many topics which I enjoyed, I don’t want to describe each one in here, in short I learned a lot of top-edge technology, such as the GNOME OS, Wayland, openShift and gnome-box.

And in this year GUADEC, I applied an volunteers to be a Session Chairman, it’s a great experience for myself.

It’s very happy to take part in Football and basketball match, and knew a lot of good team player.

After the main conference days, the BoFs were up. The one I attended was the GNOME OS session.

Here I met some old friends and also new one, I’ll share some picture below.
Also you can find more pictures from here .

 

At last, a very big thanks to the GNOME Foundation and SUSE for sponsoring my trip.

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I’m at GUADEC 2012


First day is almost over, today is a great day! Know about the lastest trends for Tor, Glade, Goa, WebKitGTK+ and epiphany.
And there several good idea triggers me, let NetworkManager support the Tor, add new service provider for Goa.


I participated the GNOME.Asia 2012 in HongKong last week, so now I should take advantage of the memory still fresh to make a summary. It’s a very exited experience in GNOME Asia 2012 in HongKong.

My two topics got approved in this conference, and I really learned a lot from preparation.
1) Local GNOME Users Group experience — Beijing and Taiwan (Bin Li, China and ChunHung Huang, Taiwan) (English), pdf file.
2) Open Build Service (Bin Li, China) (English), pdf file.

At this conference I met a lot of developer in Asia. The topic which I like most is from
Fred Chien (Taiwan) talked about some cool work with JaveScript in GNOME.

And also I met some foreigner, Aleksander,and JF, which I met them in Desktop Summit 2011.
Aleksander Morgado which is from Spain introduce ModemManager now supporting 4G/LTE.
JF which from Canada share the PiTiVi to us.

You can find a lot of topics from our Beijing GNOME User Group.
Weiwu Zhang,Tong Hui, FanJun Kong, Ms Liansu Yu, Ms Eleanor Chen

We have a video clip to show BJGUG in Gnome Asia 2012.

You can find the detail from http://2012.gnome.asia/schedule/

A little pity is that there are not so many people here, I hope next year more and more people could know and enjoy GNOME.Asia if it’s in Beijing.

At last I’ll share some pictures from GNOME Asia and thanks for the sponsorship from GNOME foundation and SUSE.
   

You can find more pictures in http://www.flickr.com/groups/1958066@N20/ .


[Talk about the OBS]

[Introduce Beijing GNOME User Group]

[Max with BJGUG]

[Group photo in close day]
GNOME Asia 2012

今天的GNOME Asia 在香港城市大学举行,很幸运从GNOME foundation获得了赞助,3天的住宿,机票俺向老板申请的,最终由SUSE赞助。
提交了2个topic,但愿一切顺利。

Local GNOME Users Group experience — Beijing and Taiwan
(Bin Li, China and ChunHung Huang, Taiwan) (English)

Open Build Service
(Bin Li, China) (English)

http://2012.gnome.asia/schedule/

用了bugzilla好多年,一直没用过这个功能。
有柱状图,曲线图,表格和CSV格式。试统计了一下俺所有改过和正在改的bug,Resolved&Verified&Closed 共415, 呵

今天安装了SLE11-SP2的GMC3版本,发现ext4分区在安装系统时已经不在支持,当系统启动后后后,挂载ext4分区时发现文件系统是只读的。
/usr/src/linux/fs/ext4/super.c

#ifndef CONFIG_EXT4_FS_RW
sb->s_flags |= MS_RDONLY;
ext4_msg(sb, KERN_INFO, “ext4 is supported in read-only mode only”);
#endif

模块在系统的默认编辑时没有定义CONFIG_EXT4_FS_RW,所以ext4是只读的。

更改Makefile加入下面一行
CFLAGS_super.o = -DCONFIG_EXT4_FS_RW

/usr/src/linux/fs/ext4 # make -C /usr/src/linux-obj/x86_64/default/ M=$PWD modules

/usr/src/linux/fs/ext4 # rmmod ext4
/usr/src/linux/fs/ext4 # cp ext4.ko /lib/modules/3.0.13-0.27-default/kernel/fs/ext4/
/usr/src/linux/fs/ext4 # modprobe ext4

大功告成,目前已经可以写了。

从build.suse.de已经有ext4-writeable的包,发现原来不用更改Makefile也可以

/usr/src/linux/fs/ext4 # make -C /usr/src/linux-obj/x86_64/default/ M=$PWD KCFLAGS=-DCONFIG_EXT4_FS_RW modules

需要说明的是SUSE建议使用ext3或brtfs文件系统,ext4只读只是为了数据迁移的需要。

20111014(Bonding )

在sled10sp2上碰到了bonding的问题,当把bond接口down掉时,在进程列表中仍然显示[bond0]的进程。

测试脚本
# cp /etc/sysconfig/network/ifcfg-bond0 /etc/sysconfig/network/ifcfg-pbond0
# ifdown bond0
# for ((i=0; i<10; i++)) ; do ifup pbond0 ; ifdown pbond0; done;

问题是:
1. bonding 模块是怎么创建进程的,当设备down掉时进程也会同时被清理?
2. ifdown 做了什么操作来使得 bonding 模块进行资源的释放?