diff options
Diffstat (limited to 'rcutorture/doc')
| -rw-r--r-- | rcutorture/doc/TINY_RCU.txt | 40 | ||||
| -rw-r--r-- | rcutorture/doc/TREE_RCU-kconfig.txt | 94 | ||||
| -rw-r--r-- | rcutorture/doc/initrd.txt | 90 | ||||
| -rw-r--r-- | rcutorture/doc/rcu-test-image.txt | 42 |
4 files changed, 0 insertions, 266 deletions
diff --git a/rcutorture/doc/TINY_RCU.txt b/rcutorture/doc/TINY_RCU.txt deleted file mode 100644 index 28db67b..0000000 --- a/rcutorture/doc/TINY_RCU.txt +++ /dev/null @@ -1,40 +0,0 @@ -This document gives a brief rationale for the TINY_RCU test cases. - - -Kconfig Parameters: - -CONFIG_DEBUG_LOCK_ALLOC -- Do all three and none of the three. -CONFIG_PREEMPT_COUNT -CONFIG_RCU_TRACE - -The theory here is that randconfig testing will hit the other six possible -combinations of these parameters. - - -Kconfig Parameters Ignored: - -CONFIG_DEBUG_OBJECTS_RCU_HEAD -CONFIG_PROVE_RCU - - In common code tested by TREE_RCU test cases. - -CONFIG_NO_HZ_FULL_SYSIDLE -CONFIG_RCU_NOCB_CPU -CONFIG_RCU_USER_QS - - Meaningless for TINY_RCU. - -CONFIG_RCU_STALL_COMMON -CONFIG_RCU_TORTURE_TEST - - Redundant with CONFIG_RCU_TRACE. - -CONFIG_HOTPLUG_CPU -CONFIG_PREEMPT -CONFIG_PREEMPT_RCU -CONFIG_SMP -CONFIG_TINY_RCU -CONFIG_TREE_PREEMPT_RCU -CONFIG_TREE_RCU - - All forced by CONFIG_TINY_RCU. diff --git a/rcutorture/doc/TREE_RCU-kconfig.txt b/rcutorture/doc/TREE_RCU-kconfig.txt deleted file mode 100644 index 3e588db..0000000 --- a/rcutorture/doc/TREE_RCU-kconfig.txt +++ /dev/null @@ -1,94 +0,0 @@ -This document gives a brief rationale for the TREE_RCU-related test -cases, a group that includes TREE_PREEMPT_RCU. - - -Kconfig Parameters: - -CONFIG_DEBUG_LOCK_ALLOC -- Do three, covering CONFIG_PROVE_LOCKING & not. -CONFIG_DEBUG_OBJECTS_RCU_HEAD -- Do one. -CONFIG_HOTPLUG_CPU -- Do half. (Every second.) -CONFIG_HZ_PERIODIC -- Do one. -CONFIG_NO_HZ_IDLE -- Do those not otherwise specified. (Groups of two.) -CONFIG_NO_HZ_FULL -- Do two, one with CONFIG_NO_HZ_FULL_SYSIDLE. -CONFIG_NO_HZ_FULL_SYSIDLE -- Do one. -CONFIG_PREEMPT -- Do half. (First three and #8.) -CONFIG_PROVE_LOCKING -- Do all but two, covering CONFIG_PROVE_RCU and not. -CONFIG_PROVE_RCU -- Do all but one under CONFIG_PROVE_LOCKING. -CONFIG_RCU_BOOST -- one of TREE_PREEMPT_RCU. -CONFIG_RCU_BOOST_PRIO -- set to 2 for _BOOST testing. -CONFIG_RCU_CPU_STALL_INFO -- do one with and without _VERBOSE. -CONFIG_RCU_CPU_STALL_VERBOSE -- do one with and without _INFO. -CONFIG_RCU_FANOUT -- Cover hierarchy as currently, but overlap with others. -CONFIG_RCU_FANOUT_EXACT -- Do one. -CONFIG_RCU_FANOUT_LEAF -- Do one non-default. -CONFIG_RCU_FAST_NO_HZ -- Do one, but not with CONFIG_RCU_NOCB_CPU_ALL. -CONFIG_RCU_NOCB_CPU -- Do three, see below. -CONFIG_RCU_NOCB_CPU_ALL -- Do one. -CONFIG_RCU_NOCB_CPU_NONE -- Do one. -CONFIG_RCU_NOCB_CPU_ZERO -- Do one. -CONFIG_RCU_TRACE -- Do half. -CONFIG_SMP -- Need one !SMP for TREE_PREEMPT_RCU. -RCU-bh: Do one with PREEMPT and one with !PREEMPT. -RCU-sched: Do one with PREEMPT but not BOOST. - - -Hierarchy: - -TREE01. CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=8, CONFIG_RCU_FANOUT_EXACT=n. -TREE02. CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=3, CONFIG_RCU_FANOUT_EXACT=n, - CONFIG_RCU_FANOUT_LEAF=3. -TREE03. CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=4, CONFIG_RCU_FANOUT_EXACT=n, - CONFIG_RCU_FANOUT_LEAF=4. -TREE04. CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=2, CONFIG_RCU_FANOUT_EXACT=n, - CONFIG_RCU_FANOUT_LEAF=2. -TREE05. CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=6, CONFIG_RCU_FANOUT_EXACT=n - CONFIG_RCU_FANOUT_LEAF=6. -TREE06. CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=6, CONFIG_RCU_FANOUT_EXACT=y - CONFIG_RCU_FANOUT_LEAF=6. -TREE07. CONFIG_NR_CPUS=16, CONFIG_RCU_FANOUT=2, CONFIG_RCU_FANOUT_EXACT=n, - CONFIG_RCU_FANOUT_LEAF=2. -TREE08. CONFIG_NR_CPUS=16, CONFIG_RCU_FANOUT=3, CONFIG_RCU_FANOUT_EXACT=y, - CONFIG_RCU_FANOUT_LEAF=2. -TREE09. CONFIG_NR_CPUS=1. - - -Kconfig Parameters Ignored: - -CONFIG_64BIT - - Used only to check CONFIG_RCU_FANOUT value, inspection suffices. - -CONFIG_NO_HZ_FULL_SYSIDLE_SMALL - - Defer until Frederic uses this. - -CONFIG_PREEMPT_COUNT -CONFIG_PREEMPT_RCU - - Redundant with CONFIG_PREEMPT, ignore. - -CONFIG_RCU_BOOST_DELAY - - Inspection suffices, ignore. - -CONFIG_RCU_CPU_STALL_TIMEOUT - - Inspection suffices, ignore. - -CONFIG_RCU_STALL_COMMON - - Implied by TREE_RCU and TREE_PREEMPT_RCU. - -CONFIG_RCU_TORTURE_TEST -CONFIG_RCU_TORTURE_TEST_RUNNABLE - - Always used in KVM testing. - -CONFIG_RCU_USER_QS - - Redundant with CONFIG_NO_HZ_FULL. - -CONFIG_TREE_PREEMPT_RCU -CONFIG_TREE_RCU - - These are controlled by CONFIG_PREEMPT. diff --git a/rcutorture/doc/initrd.txt b/rcutorture/doc/initrd.txt deleted file mode 100644 index 49d134c..0000000 --- a/rcutorture/doc/initrd.txt +++ /dev/null @@ -1,90 +0,0 @@ -This document describes one way to create the initrd directory hierarchy -in order to allow an initrd to be built into your kernel. The trick -here is to steal the initrd file used on your Linux laptop, Ubuntu in -this case. There are probably much better ways of doing this. - -That said, here are the commands: - ------------------------------------------------------------------------- -zcat /initrd.img > /tmp/initrd.img.zcat -mkdir initrd -cd initrd -cpio -id < /tmp/initrd.img.zcat ------------------------------------------------------------------------- - -Interestingly enough, if you are running rcutorture, you don't really -need userspace in many cases. Running without userspace has the -advantage of allowing you to test your kernel independently of the -distro in place, the root-filesystem layout, and so on. To make this -happen, put the following script in the initrd's tree's "/init" file, -with 0755 mode. - ------------------------------------------------------------------------- -#!/bin/sh - -[ -d /dev ] || mkdir -m 0755 /dev -[ -d /root ] || mkdir -m 0700 /root -[ -d /sys ] || mkdir /sys -[ -d /proc ] || mkdir /proc -[ -d /tmp ] || mkdir /tmp -mkdir -p /var/lock -mount -t sysfs -o nodev,noexec,nosuid sysfs /sys -mount -t proc -o nodev,noexec,nosuid proc /proc -# Some things don't work properly without /etc/mtab. -ln -sf /proc/mounts /etc/mtab - -# Note that this only becomes /dev on the real filesystem if udev's scripts -# are used; which they will be, but it's worth pointing out -if ! mount -t devtmpfs -o mode=0755 udev /dev; then - echo "W: devtmpfs not available, falling back to tmpfs for /dev" - mount -t tmpfs -o mode=0755 udev /dev - [ -e /dev/console ] || mknod --mode=600 /dev/console c 5 1 - [ -e /dev/kmsg ] || mknod --mode=644 /dev/kmsg c 1 11 - [ -e /dev/null ] || mknod --mode=666 /dev/null c 1 3 -fi - -mkdir /dev/pts -mount -t devpts -o noexec,nosuid,gid=5,mode=0620 devpts /dev/pts || true -mount -t tmpfs -o "nosuid,size=20%,mode=0755" tmpfs /run -mkdir /run/initramfs -# compatibility symlink for the pre-oneiric locations -ln -s /run/initramfs /dev/.initramfs - -# Export relevant variables -export ROOT= -export ROOTDELAY= -export ROOTFLAGS= -export ROOTFSTYPE= -export IP= -export BOOT= -export BOOTIF= -export UBIMTD= -export break= -export init=/sbin/init -export quiet=n -export readonly=y -export rootmnt=/root -export debug= -export panic= -export blacklist= -export resume= -export resume_offset= -export recovery= - -for i in /sys/devices/system/cpu/cpu*/online -do - case $i in - '/sys/devices/system/cpu/cpu0/online') - ;; - '/sys/devices/system/cpu/cpu*/online') - ;; - *) - echo 1 > $i - ;; - esac -done - -while : -do - sleep 10 -done diff --git a/rcutorture/doc/rcu-test-image.txt b/rcutorture/doc/rcu-test-image.txt deleted file mode 100644 index 66efb59..0000000 --- a/rcutorture/doc/rcu-test-image.txt +++ /dev/null @@ -1,42 +0,0 @@ -This document describes one way to created the rcu-test-image file -that contains the filesystem used by the guest-OS kernel. There are -probably much better ways of doing this, and this filesystem could no -doubt be smaller. It is probably also possible to simply download -an appropriate image from any number of places. - -That said, here are the commands: - ------------------------------------------------------------------------- -dd if=/dev/zero of=rcu-test-image bs=400M count=1 -mkfs.ext3 ./rcu-test-image -sudo mount -o loop ./rcu-test-image /mnt - -# Replace "precise" below with your favorite Ubuntu release. -# Empirical evidence says this image will work for 64-bit, but... -# Note that debootstrap does take a few minutes to run. Or longer. -sudo debootstrap --verbose --arch i386 precise /mnt http://archive.ubuntu.com/ubuntu -cat << '___EOF___' | sudo dd of=/mnt/etc/fstab -# UNCONFIGURED FSTAB FOR BASE SYSTEM -# -/dev/vda / ext3 defaults 1 1 -dev /dev tmpfs rw 0 0 -tmpfs /dev/shm tmpfs defaults 0 0 -devpts /dev/pts devpts gid=5,mode=620 0 0 -sysfs /sys sysfs defaults 0 0 -proc /proc proc defaults 0 0 -___EOF___ -sudo umount /mnt ------------------------------------------------------------------------- - - -References: - - http://sripathikodi.blogspot.com/2010/02/creating-kvm-bootable-fedora-system.html - https://help.ubuntu.com/community/KVM/CreateGuests - https://help.ubuntu.com/community/JeOSVMBuilder - http://wiki.libvirt.org/page/UbuntuKVMWalkthrough - http://www.moe.co.uk/2011/01/07/pci_add_option_rom-failed-to-find-romfile-pxe-rtl8139-bin/ -- "apt-get install kvm-pxe" - http://www.landley.net/writing/rootfs-howto.html - http://en.wikipedia.org/wiki/Initrd - http://en.wikipedia.org/wiki/Cpio - http://wiki.libvirt.org/page/UbuntuKVMWalkthrough |