Linux kernel 2.6.26发布

2.6.26 adds support for read-only bind mounts, x86 PAT (Page Attribute Tables),
PCI Express ASPM (Active State Power Management), ports of KVM to IA64, S390 and PPC, other KVM improvements including basic paravirtualization support,
preliminar support of the future 802.11s wireless mesh standard,
much improved webcam support thanks to a driver for UVC devices,
a built-in memory tester,
a kernel debugger,
BDI statistics and parameters exposure in /sys/class/bdi,
a new /proc/PID/mountinfo file for more accurate information about mounts, per-process securebits,
device white-list for containers users,
support for the OLPC,
some new drivers and many small improvements

对Palm新产品Foleo的看法

Palm在5月30日发布了该产品,发布信息看这里:The Palm Foleo.

现在的介绍来看,10寸屏幕,全尺寸键盘,带有指点杆和滚轮,蓝牙,无线,支撑5小时的电池. Palm将他称为Mobile Companion.

个人觉得这是个很有野心的产品,这个基于Linux的产品,意味着Palm未来的另一个道路.简单的看,随时可以推出和UMPC抗衡的产品.长远来看,完全可以提供用户个人通讯的一体化解决方案.

目前,需要改进的是产品重量,多样产品提供选择,例如,完全可以提供更加方便携带的7寸大小无键盘产品,甚至是可折叠7寸产品(触摸屏).满足大量阅读少量输入的用户.或者增加处理能力,使之成为可代替一般文员的笔记本商务功能的新办公产品.

Gentoo安装

关键字:Gentoo genkernel initrd 内核编译 linux
前阵子有个朋友跟我抱怨:Gentoo使用genkernel来进行内核编译无法通过,说是没有initrd文件阿。
由于我以前都是手动编译内核,所以不清楚是怎么回事。
昨天晚上,在笔记本上安装的时候,因为忙于看CSI,就偷懒用genkernel,编译完成确实没有initrd。
手册上这部分是有笔误的。

Code listing 18: Checking the created kernel image name and initrd

# ls /boot/kernel* /boot/initrd*

使用genkernel编译,应该产生的是initramfs-genkernel-x86-2.6.12-gentoo-r6 类似于这样的文件。

在grub.conf配置时,指明就可以了。

2.6.13 Linux内核发布

原文链接
Posted by Zonk on Monday August 29, @08:43AM
from the almost-as-good-as-a-kernel-of-corn dept.

[email protected] writes “Linus Torvalds announced the release of the 2.6.13 Linux kernel. He noted that there was a major change to the x86 PCI code, and that while all bugs from the change were believed to be found during the release candidate phase, it’s possible that some devices may have problems. From this release on, it is intended that major changes only be merged into the kernel within two weeks after a major release. The rest of the time will be spent fixing bugs, with the goal of both increasing overall stability and decreasing the amount of time between major releases. Download the latest Linux kernel from a kernel.org mirror.”

虽然新核心发布,不过之前的收取许可费的消息对开放源代码的影响更加大。
希望Linux一路平安。。。

Neighbour table overflow

没有想到自己也碰到了这个问题.
解决方案:

echo 20480> /proc/sys/net/ipv4/neigh/default/gc_thresh1
echo 40960> /proc/sys/net/ipv4/neigh/default/gc_thresh2
echo 81920 > /proc/sys/net/ipv4/neigh/default/gc_thresh3

如果ok,就修改/etc/sysctl.conf

net.ipv4.neigh.default.gc_thresh3 = 81920
net.ipv4.neigh.default.gc_thresh2 = 40960
net.ipv4.neigh.default.gc_thresh1 = 20480

注意:我改的数值有点大.