release62

DragonFly BSD 6.2

Version 6.2.1 released 2022 01 09
Version 6.2.2 released 2022 06 09

DragonFly version 6.2 is the next step in the 6.x release series. This version has hardware support for type-2 hypervisors with NVMM, an amdgpu driver, the experimental ability to remote-mount HAMMER2 volumes, and many other changes.

The details of all commits between the 6.0 and 6.2 releases are available in the associated commit messages for 6.2.2 and 6.2.1. 6.2.0 was not released.

To see all the bugtracker issues that were closed for this release, please check here.

Big-ticket items

NVMM, a type-2 hypervisor for hardware-supported virtualization, ported to DragonFly. See the NVMM Hypervisor documentation.
growfs support added to HAMMER2 for changing the size of an existing HAMMER2 volume.
xdisk included in build. Remote HAMMER2 disks can be mounted (Experimental!)
drm/amdgpu driver imported, matches Linux 4.19 support.
drm/ttm updated to match.

Details

Checksums

MD5 (dfly-x86_64-6.2.2_REL.img) = 4c46d6545e58bfda7d99bbb594ef0730
MD5 (dfly-x86_64-6.2.2_REL.iso) = aa942f24aa8a53dbf1ca9400cf6e949b
MD5 (dfly-x86_64-6.2.2_REL.img.bz2) = ee9fe5b7af806469d58465617361111a
MD5 (dfly-x86_64-6.2.2_REL.iso.bz2) = b391a29c8e9c1cc33f2441ff1f0d98a0

Upgrading

If you have an existing 5.x or 6.0 system and are running a generic kernel, the normal upgrade process, described below, will work.

Change your local /usr/src to 6.2:

cd /usr/src
git fetch origin
git branch DragonFly_RELEASE_6_2 origin/DragonFly_RELEASE_6_2
git checkout DragonFly_RELEASE_6_2
git pull

And then rebuild: (in /usr/src)

make build-all
make install-all

(reboot your system)

make initrd

make initrd is optional for systems with unencrypted disks. See the initrd(7) man page for details.

Don't forget to upgrade your existing packages. 6.2 packages have already been built and are immediately available.

pkg update
pkg upgrade

If you get a lua error when upgrading pkg, copy over a new config file:

cp /usr/local/etc/pkg/repos/df-latest.conf.sample /usr/local/etc/pkg/repos/df-latest.conf

All other changes since prior release

Security Issues

Recommend updating all systems, a locally-exploitable kernel vulnerability was fixed for this release.

Kernel

Many different changes were made for NVMM support; check the release tag for a full list
Implement POLLHUP for pipes and filesystem FIFOs (improve dports portability)
amdtemp - Fix family 0x17 support, add family 0x19 support
kernel - Add DIOCGMEDIASIZE and DIOCGSECTORSIZE
edk2: Sync our TianoCore EDK II headers with the edk2-stable202105 tag
Import OpenPAM Tabebuia
Import passwdqc 2.0.2
Remove a.out support
Fix posix_fallocate()
Fix indefinite blocking in exit when draining controlling tty
Fix select()/kqueue() bug related to writability of a closed pipe()
Make getpeerid() work with socketpair() descriptors
Fix rman ref count races against sysctl -a dumps
Be more friendly to latency when running as a guest OS under a VM
Remove terminal PTE pv_entry tracking entirely, moving more of the VM system to extent-based recording. This also means MAP_VPAGETABLE had to be removed and userland vkernel support had to be removed. NVMM under QEMU should now be used for virtualizing DFly. This saves an enormous amount of kernel memory when running services that share large amounts of memory across large numbers of distinct processes.
Various npx (floating point state) cleanups and fixes
Offset the per-cpu scheduler clock interrupts to avoid waking up all cpu cores simultaneously. Improves idle conditions.
Improve vfs.timestamp_precision defaults when running under VMs
Improve TSC concurrency tests when running under VMs
Major improvements to the paging algorithms. The system now does a much, much better job selecting pages for swap, significantly improving the user experience with browsers on low-memory systems.
The default maxvnodes calculation has been reduced, reducing kernel memory use. Caching too many vnodes can be detrimental, particularly since H2 caches block data at the raw block device level too (helps with compression / decompression data caching).

Filesystems

multiple checks added to fdisk
growfs support improved in HAMMER2
usr.sbin/fstyp: Add BeFS support
makefs: Add FAT support (taken from FreeBSD)
hammer2 - Fix excessive memory use during bulkfree.
hammer2 - Fix H2 BOOT support when the BOOT pfs is recreated.
hammer2 - Fix freemap accounting that could lead to incorrect filesystem full situations.
hammer2 - Fix I/O error panic during bulkfree.
hammer2 - Fix panic on illegal renames made possible by nullfs mounts
hammer2 - Add growfs support
hammer2 - Better CPU localization user vs XOP threads, improving performance
ext2fs - Various cleanups
ext2fs - Various fixes
msdosfs - Various fixes

Networking

ipfw3nat: ICMP packets NAT using icmp idport reuse.
Add SIOCGHWADDR support.

Graphics

drm/i915: Enable WhiskeyLake GPUs
drm/i915: Hack around crashes due to ring timeouts during startup.
drm/amd: amdgpu support added through (roughly) the 3400G APU. Thanks to Sergey Zigachev for lighting a fire under this.
drm/amd: Increase stolen memory from 9MB to 64MB to fix amdgpu crash with 4K monitor attached

Driver updates

sn, sbsh security fixes
psm no longer temporarily freezes on sync errors
ichsmb: Add {Cannon,Comet,Tiger,Gemini}lake PCI IDs
Remove ndis(4) and associated tools and stuff.
amdgpu driver updated to match Linux 4.19
ttm updated to match amdgpu
radeon driver updated to use ttm
nvme improve compatibility with broken off-label drives
xdisk: Integrate into tree
sound: Bug fixes / fix a panic
ahci: Document hint.ahci.force{150,300,600} loader vars
amdtemp: Fix family 0x17 support

Userland

tcsh: Add csh-mode.el
defaults/compilers.conf: Add CCVER definitions for clang11.
Import mandoc-1.14.6.
Import OpenSSH-8.8p1
Import tzdata2021e
initrd/mkinitrd.sh: Switch the initrd generation from vn(4) to makefs(8)
Update to dhcpcd-9.4.1
Synchronize zoneinfo (we do this regularly)
fdisk - various improvements

Libraries

libc - Fix env passing in posix_spawnp()
libc - Add getentropy() to improve ports compatibility
libc - Add clearenv()
libc - Add platform specific __double_t and __float_t
libc - Improve shm_open() portability
libc - Add mkdirat()
libdmsg restore crypto functionality
pthreads - Improve low level lock performance

Miscellaneous

ahci - Document more loader.conf variables
periodic: Enable {daily,weekly,monthly,security}_show_badconfig by default.
ACPICA sync with Intel version 20211217
Boot source code rearranged in the source tree
Memorialize the Covid epidemic with a manual page
libc - Revamp /var/run/shm to improve portability

DSynth work

dsynth - Add -M scale option
dsynth - Support pkg 1.17 (.pkg suffix for packages)
dsynth - Support for pkg meta version 2
dsynth - Add PKG_COMPRESSION_FORMAT

Various tools have been upgraded in the base system:

dhcpcd-9.4.0 to dhcpcd-9.4.1
vendor/file: upgrade from 5.39 to 5.40

Compiler status

Currently using GCC 8 by default, with GCC 4.7 built but not used as fallback.
Unchanged from 6.0.

Package updates

A full set of new binary packages has been built for 6.2, available through the pkg(8) tool.