peo3’s gists

peo3 / config-3.8.2-206.vbox.fc18.x86_64

Created March 12, 2013 16:12

A sample configuration of a minimal x86_64 kernel with user namespace for VirtualBox.

	# x86_64
	# Automatically generated file; DO NOT EDIT.
	# Linux/x86_64 3.8.2 Kernel Configuration
	#
	CONFIG_64BIT=y
	CONFIG_X86_64=y
	CONFIG_X86=y
	CONFIG_INSTRUCTION_DECODER=y
	CONFIG_OUTPUT_FORMAT="elf64-x86-64"
	CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"

peo3 / try_virt-sandbox.sh

Last active December 12, 2015 08:39

How to try virt-sandbox on Ubuntu 12.10.

	sudo aptitude install autoconf
	sudo aptitude install libtool
	sudo aptitude install libcap-ng-dev
	sudo aptitude install libvirt-glib-1.0-dev
	sudo aptitude install libglib2.0-dev
	sudo aptitude install libglib2.0
	sudo aptitude install libxml2-dev
	sudo aptitude install libselinux-dev
	sudo aptitude install gtk-doc-tools
	sudo aptitude install libvirt-bin

peo3 / config-3.7.4-204.vbox.fc18.x86_64

Created February 6, 2013 17:19

A configuration for a small custom kernel of Fedora 18 on VirtualBox.

	# x86_64
	# Automatically generated file; DO NOT EDIT.
	# Linux/x86_64 3.7.4-204.vbox.fc18.x86_64 Kernel Configuration
	#
	CONFIG_64BIT=y
	CONFIG_X86_64=y
	CONFIG_X86=y
	CONFIG_INSTRUCTION_DECODER=y
	CONFIG_OUTPUT_FORMAT="elf64-x86-64"
	CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"

peo3 / gist:4258274

Created December 11, 2012 12:38

Unknown git behavior...

	$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
	$ cd linux/
	$ git status
	# On branch master
	# Changes not staged for commit:
	# (use "git add <file>..." to update what will be committed)
	# (use "git checkout -- <file>..." to discard changes in working directory)
	#
	# modified: include/uapi/linux/netfilter/xt_CONNMARK.h
	# modified: include/uapi/linux/netfilter/xt_DSCP.h

peo3 / gist:3464550

Created August 25, 2012 12:02

cgroup-utils: git diff v0.3..v0.4 --stat

peo3 / gist:3157001

Created July 21, 2012 20:13

cgroup-utils supports autogroup

	$ cgutil tree -t -k --show-autogroup
	<root>
	+test
	+system
	\| +sm-client.service
	\| \| `sendmail
	\| +sendmail.service
	\| \| `sendmail
	\| +vboxadd-service.service
	\| \| `VBoxService

peo3 / gist:3090225

Created July 11, 2012 12:55

cgutil pgrep

	[fedora17 cgroup-utils]$ cgutil pgrep systemd
	/: 1
	/system/systemd-logind.service: 576
	/system/systemd-journald.service: 359
	[fedora17 cgroup-utils]$ cgutil pgrep systemd -l -f
	/: 1 /usr/lib/systemd/systemd
	/: 1321 /bin/python /bin/cgutil pgrep systemd -l -f
	/system/systemd-logind.service: 576 /usr/lib/systemd/systemd-logind
	/system/dbus.service: 607 /bin/dbus-daemon --system --address=systemd: --nofork --systemd-activation
	/system/systemd-journald.service: 359 /usr/lib/systemd/systemd-journald

peo3 / Makefile

Created June 23, 2012 15:08

cgroup LKM example

	obj-m = cgroup-notifier-counter.o

	KVERSION = $(shell uname -r)

	all:
	make -C /lib/modules/$(KVERSION)/build M=$(PWD) modules
	clean:
	make -C /lib/modules/$(KVERSION)/build M=$(PWD) clean

peo3 / store_bundle_in_sqlite3.java

Created February 11, 2012 11:51

Store an arbitrary Bundle object into a SQLite database ref: http://qiita.com/items/2386

	/* store a bundle */
	Bundle bundle = // get a bundle from somewhere
	final Parcel parcel = Parcel.obtain();
	bundle.writeToParcel(parcel, 0);
	byte[] bundleBytes = parcel.marshall();
	parcel.recycle();

	ContentValues values = new ContentValues();
	values.put("bundle", bundleBytes);
	SQLiteDatabase db = // create a db object

peo3 / gist:1669870

Created January 24, 2012 12:07

ls ~/git