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9ad8146e 1# DragonFly Release 3.4
2
59472ff9 3Version 3.4.0 released xx April 2013.
9ad8146e 4
5## Big-ticket items
6
59472ff9 7### Experimental packaging system: dports
8
aba95e00 9John Marino has created a system, DPorts, that uses the FreeBSD ports system to build ports for DragonFly, and uses [pkgng](https://github.com/pkgng/pkgng#readme) to manage the binary packages produced from those ports.
59472ff9 10
aba95e00 11The default packaging system on DragonFly is pkgsrc. To use DPorts, you must remove or disable pkgsrc packages. Pkgsrc and DPorts cannot be used at the same time, or have packages mixed together. See the [DPorts Howto page](docs/docs/howtos/HowToDPorts/) for details on installing and using DPorts. Note: this is the first release with DPorts, and this is still experimental.
59472ff9 12
5275afbc 13The [DragonFly snapshots](http://avalon.dragonflybsd.org/snapshots/) are built using dports. (and also have XFCE for the desktop)
14
9ad8146e 15### Performance improvements under extreme load
16
56e0e599 17The process of testing [poudriere](https://fossil.etoilebsd.net/poudriere/doc/trunk/doc/index.wiki), a tool for mass-producing binary dports packages, exposed stability issues when repeatedly mounting and unmounting many tmpfs systems on large multicore (48) systems. These issues have been fixed. In addition to stability, several changes were made to improve performance in situations with heavy processor and disk usage.
aba95e00 18
9ad8146e 19### New USB stack
20
aba95e00 21[USB4BSD](http://www.selasky.org/hans_petter/usb4bsd/) is available this release, though not by default. More USB devices are compatible with DragonFly, and xhci (USB 3.0) users may be able to take full advantage of their newer hardware. Since this is a new feature, it is available in 3.4 but *not* built by default. See the [original announcement](http://lists.dragonflybsd.org/pipermail/users/2012-October/017542.html) for how to do so. This feature was available in DragonFly 3.2 but is still experimental.
9ad8146e 22
23## Availability
24
f83492af 25Two release options are now available for 32-bit as well as for 64-bit. 64-bit installations are recommended if you do not need the Linux emulation layer.
9ad8146e 26
27* An ISO, to be burned to a physical CD or used as an image to install a virtual machine.
28* A bootable USB disk-key image. (minimum 2G USB stick needed)
29
30The release ISO images should be available on most of the [[mirrors|mirrors]]. If the ISO is not available on a certain mirror, please try another one or download it from the DragonFly master site. Each image is in the "Live CD" format, meaning that it boots into a running and fully functional DragonFly system, which can be used for testing or system recovery tasks as well as installation. Check the [hardware page](http://www.dragonflybsd.org/docs/supportedhardware/) or boot a Live CD to check for compatibility.
31
32
33### MD5 sums
34
35MD5 sums for the compressed images:
36
37* MD5 (dfly-i386-3.2.1_REL.img.bz2) = a592...
38* (FIXME)
39
40MD5 sums for the uncompressed images:
41
42* MD5 (dfly-i386-3.2.1_REL.img) = 52c416d...
43* (FIXME)
44
45### pkgsrc packages
46
f83492af 47Pkgsrc packages have not been pre-built for this release. We suggest building from source for pkgsrc installation.
9ad8146e 48
49We supply a Makefile in `/usr` to track the pkgsrc tree and we supply a Git mirror of the NetBSD pkgsrc CVS repo at `git://git.dragonflybsd.org/pkgsrcv2.git`. We recommend that users use it, instead of pulling from NetBSD with CVS. Our Git mirror is updated several times a day. Type 'make' in /usr to see the available commands for performing these actions.
50
51## DragonFly 3.4 Special Installation and Upgrade Notes
52
f83492af 53**Disk size warning** - Installations using HAMMER should be to disks over 50G in size. HAMMER history will consume disk space quickly. Either use UFS on smaller disks, or prune your file history carefully.
9ad8146e 54
55**Virtual PC users** - Virtual PC does not supply serial numbers for the virtual disks. The system may need to be manually directed in the boot loader if the disk identifier changes. (Hit ? in the boot loader for a list of available volumes.)
56
57**Qemu users** - If you see a large number of error messages on the console when booting, you may need to boot DragonFly with ACPI disabled. This can be done in the menu presented at initial boot. If that doesn't help, try placing hw.ioapic_enable=0 in /boot/loader.conf.
58
59**Installer Crypt Options** - The installer can encrypt the root volume and the swap volume. It will not work properly for other volumes despite any additional check-boxes you might see. Installer and boot-time support works but is still a bit rough around the edges. Performance will be relatively high on multi-core machines.
60
61## DragonFly 3.4.0 Release Notes
62
f83492af 63For a list of per-commit changes, see the [3.4.0rc tag commit](http://lists.dragonflybsd.org/pipermail/commits/2013-April/129831.html).
aba95e00 64
9ad8146e 65> ### Kernel changes
66
ee7cb0c2 67* Very large number of ACPI changes
68* Very large number of Interrupt routing changes
69* Far better MSI/MSI-X support
70* Multiple TX and RX ring support with networking chipsets
71* Many network throughput and latency enhancements
72* Enhanced FP unit support
73* Fixed panics during keyboard screen switches
74* Improved performance under heavy paging loads
75* Greatly improved namecache performance and stability under heavy SMP loads
76* Greatly improved VM fault performance and stability under heavy SMP loads
77* Improved PMAP performance and stability under heavy SMP loads (64-bit)
78* Fixed SMP races with ^T on heavily threaded programs
79* Fixed symbolic DDB backtraces (64-bit)
80* Improved stability of swapoff
81* Improved swap page allocation algorithm
82* Greatly Improved TMPFS performance and stability by a lot
83* Fixed performance issues with namecache negative caching
84* Improved error handling in mount and unmount
85* Fixed BUFFER CACHE related performance issues due to fragmentation
86* Proper accounting for system time during heavy token contention
87* 'sync' system call no longer uses MNT_LAZY as this prevents a full sync
88* Reduce unnecessary KVM use on systems with large amounts of memory.
89* Improve UFS performance by making the ihash table per-mount
90* Better support for BIOS-emulated video displays
91* Fixed ptrace panic
92* 64-bit reverted to use nmalloc (dmalloc had too many memory bloat issues)
aba95e00 93* More reliable when very rapidly mounting and unmounting filesystems
94* USB4BSD libraries added: libusbhid, usbhidctl.
95* SMP support now on by default
96* SMBIOS information is now detected and available.
97* ifnet/ifaddr statistics are now saved per-CPU.
acec9460 98* virtio, virtio-blk drivers added.
aba95e00 99
9ad8146e 100
101> ### Hardware changes
102
aba95e00 103* AVX instructions are now supported on 64-bit processors.
104* Improved stability for iwi(4), wpi(4), and ath(4)
105* hptiop(4) supports RocketRAID 4520 and 4522
106* USB4BSD drivers added: usb, ehci, ohci, uhci, xhci, umass, usfs, uaudio, uep, uhid, ukbd, ums, uether, udav, and axe.
acec9460 107* em(4) and emx(4) are updated to Intel em-7.3.4.
108* igb(4) has I210 and I211 support, and is updated to Intel igb-2.3.7.
109* bnx(4) supports the BCM5717-C0, BCM5762, BCM5725 and BCM5727.
110* rl(4) supports the DLink DFE520TX C1
111* msk(4) and et(4) are MSI-enabled
112* bce(4) supports multiple-vector MSI-X, multiple receiving queues and multiple transmitting queues for BCM5709/BCM5716
113* bce(4), bge(4), bnx(4), em(4), emx(4) and jme(4) packet transmission performance has been improved by aggregating hardware register writing.
114* bce(4) and igb(4) now enable multiple hardware transmitting queues by default.
115* emx(4) supports 2 transmitting queues on 82571/82572, but is not enabled by default.
116* bce(4), emx(4), igb(4) and jme(4) fully support the new polling(4) (IFPOLL).
ee7cb0c2 117* AHCI bug fixes.
9ad8146e 118
aba95e00 119> ### HAMMER2
120
ee7cb0c2 121* NOTE: HAMMER2 is not operational yet, not even for devs.
acec9460 122* AES GCM support.
123* Cache coherency management system created based on HAMMER1.
124* Message passing system implemented.
125* Spanning code written.
aba95e00 126
9ad8146e 127
128> ### Userland changes
129
aba95e00 130* Vkernel disk serial numbers and interface MACs can now be set from the command line.
acec9460 131* mktemp(1) improvements from FreeBSD.
132* System make set to bmake.
133* Automatic installation of dports via /usr/Makefile added.
3305f45f 134* Fixed bug in powerd that could lead to only 1 cpu in the cpumask for userland scheduling.
9ad8146e 135
136> ### Removals
137
acec9460 138* None in this release
9ad8146e 139
140> ### Contributed Software
141
142* Shipping with pkgsrc-2013Q1.
aba95e00 143* gcc4.1 removed
144* gcc4.7 added
145* flex updated to 2.5.3.7
146* bmake updated to 20121010
147* OpenSSH updated to 6.1p1
148* m4 updated
149* byacc updated to 20121003
150* OpenSSL updated to 1.0.1e
151* dialog updated to 1.2-20121230
152* libarchive updated to 3.1.2
153* zoneinfo updated to tzdata2013b
9ad8146e 154
155>### Security related
156
acec9460 157* No specific security-related updates in this release.