DragonFly – Page 8 – DragonFly BSD Digest

2021/07/23

How to mess up mail delivery

Here’s something I just learned: If you are running dma(8), /etc/dma.conf will contain MAILNAME. If your email server is somewhere else, but you set MAILNAME as your domain – dma will deliver locally.

I had /etc/dma.conf set with MAILNAME shiningsilence.com – so dma kept delivering overnight periodic results to root, which was aliased to justin@shiningsilence.com in /etc/mail/aliases and so it was delivered to ‘justin’ locally on the machine.

Changing MAILNAME to www.shiningsilence.com – the host you are reading right now – fixed the problem. Now, whether this was an automatically set config or something I misconfigured some years ago… I can’t tell.

2021/07/192021/07/15

Minor boot code move

boot and libstand directories are moved to src/stand/boot on DragonFly. This won’t affect most people, as you’ll upgrade and build the same way as always, but if you were specifically looking for it in the old locations of sys/boot and lib/libstand, you’d be surprised.

2021/07/162021/07/15

*_show_badconfig on by default in DragonFly

I didn’t know about this, but there’s a daily/weekly/monthly/security_show_badconfig option in periodic.conf that is now defaulting to “yes” in DragonFly. This I assume means you’ll get the output of erroring periodic scripts sent to you. Useful, especially if you find out about an error you hadn’t seen before.

2021/07/14

covid(1) in DragonFly

covid(1), the program, from NetBSD and now in DragonFly.

2021/07/132021/07/12

ndis removed from DragonFly

ndis(4) is removed from DragonFly; it’s probably been years since it was applicable to any hardware. I don’t think it will affect anyone – but it’s an interesting tool from a historical perspective; for a while it was possible to use Windows XP drivers to create a BSD network driver, effectively.

2021/07/12

Sometimes it really is bad RAM

Many, many times over the years I have tried answering problems with “… and maybe something’s wrong with the RAM?”, which is always possible but not always probable. For once, it’s really what happened in this story of strange HAMMER2 errors.

2021/07/092021/07/01

How big is chromium?

Here’s a link to a commit for dsynth that gives an idea of how huge a debug build of chromium can be.

2021/07/082021/07/01

Working Wireguard on DragonFly

This note from James Cook describes how to get Wireguard functioning on DragonFly; his linked patch is not necessary at this point since it’s been committed to dports – though not in the latest binaries.

2021/07/062021/07/01

Resilience and HAMMER2

Nelson H. F. Beebe posted links to two ACM articles; one about SSDs and the other about filesystem resilience. Matthew Dillon chimed in with his thoughts specifically on HAMMER2.

2021/07/052021/06/30

FPGA programming and DragonFly

Thanks to yrabbit, there’s a full FPGA toolchain possible on DragonFly. It’s preliminary, but it works.

2021/07/022021/06/30

New package build for 6.0

I’m actually some days late in reporting this, but there’s a new full build of packages for DragonFly 6.0; it’s following the quarterly release schedule for ports, so 2021Q2 is the base.

This goes with the recent merges from -current into 6.0. Now is a good time to update your system completely, if you have not already.

2021/06/302021/06/29

A good time to update 6.0 systems

Matthew Dillon’s merged a good number of patches from -current DragonFly to the 6.0 branch. No emergency items, but it’s a good time to update.

2021/06/29

NVMM and DragonFly?

Judging from this large number of commits talking about NVMM support, Aaron Li is bringing NVMM from NetBSD to DragonFly. And here’s some minor statistics.

2021/06/28

Forcing slower speeds on purpose

If you’ve got unshielded disk cables in a tiny PC, you can run the AHCI link a bit slower to better handle interference.

2021/06/23

HAMMER2 tweaks

Matthew Dillon’s fixed a possible deadlock in HAMMER2, plus some optimizations that I can’t quantify, but are fun to read about.

2021/06/21

A extra script for Emacs/tcsh

If you like csh/tcsh, and also Emacs, there’s a eLisp file to put Emacs in csh script mode, now in DragonFly.

(Someone who uses Emacs more than me tell me if I have a wrong description.)

2021/06/182021/06/18

Wireguard on DragonFly

You may run into a setup issue with Wireguard when trying to set it up on DragonFly. Keep an eye on this Go bug report if so.

Update: here’s a solution in the works.

2021/06/16

Updates for amdsmn(4), amdtemp(4)

The drivers amdsmn(4) and amdtemp(4) have received several updates. The output still may have issues, but this is useful if you have newer AMD hardware.

2021/06/15

Even comment changes are helpful

It’s worth saying because people don’t realize it: In-code documentation updates, even if the code itself isn’t changed, is a worthwhile way to contribute.

2021/06/14

Network adapter hint

If you have an AR9485 wireless adapter, this bug report notes the appropriate config for DragonFly. Might work for other hardware too?