fidzu : freedesktop

Already on Sep 17 we released systemd v258 into the wild.

In the weeks leading up to that release I have posted a series of serieses of posts to Mastodon about key new features in this release, under the #systemd258 hash tag. It was my intention to post a link list here on this blog right after completing that series, but I simply forgot! Hence, in case you aren't using Mastodon, but would like to read up, here's a list of all 37 posts:

• Post #1: systemctl start -v
• Post #2: Home areas
• Post #3: systemd-resolved delegate zones
• Post #4: Foreign UID range
• Post #5: /etc/hostname ??? wildcards
• Post #6: Quota on /tmp/
• Post #7: ConcurretnySoftMax= + ConcurrencyHardMax=
• Post #8: Product UUID in ConditionHost=
• Post #9: Context OSC terminal sequences
• Post #10: uki-url Boot Loader Spec Type #1 fields
• Post #11: rd.break= boot breakpoints
• Post #12: Factory Reset Rework
• Post #13: systemd-resolved DNS Configuration Change IPC Subscription API
• Post #14: io.systemd.boot-entries.extra= SMBIOS Type #11 Key
• Post #15: Bring Your Own Firmware
• Post #16: userdb record aliases
• Post #17: systemd-validatefs and its xattrs
• Post #18: Offline Signing of Artifacts
• Post #19: PAMName= in services hooked up to ask-password protocol
• Post #20: x-systemd.graceful-option= mount option
• Post #21: systemd-userdb-load-credentials.service
• Post #22: systemd-vmspawn --grow-image=a
• Post #23: systemd-notify --fork
• Post #24: $TERM auto-discovery
• Post #25: Rebooting/Powering off systemd-nspawn containers via hotkey
• Post #26: ExecStart= | modifier
• Post #27: systemctl reload reloads confexts
• Post #28: Server side userdb filtering
• Post #29: Quota on StateDirectory= and friends
• Post #30: systemd-analyze unit-shell
• Post #31: /etc/issue.d/ drop-in for AF_VSOCK CID
• Post #32: fsverity in systemd-repart
• Post #33: AcceptFileDescriptor= + PassPIDFD=
• Post #34: Tab completion in interactive systemd-firstboot
• Post #35: rd.systemd.pull= kernel command line option/Boot into tarball
• Post #36: ConditionKernelModuleLoaded=
• Post #37: systemd-analyze chid
• Post #38: homectl list-signing-keys/get-signing-key/add-signing-key/remove-signing-key
• Post #39: DDI Image Filters
• Post #40: Android USB Debugging udev rules
• Post #41: systemd-vmspawn's --smbios11= switch
• Post #42: $MAINPIDFDID + $MANAGERPIDFDID
• Post #43: $DEBUG_INVOCATION=1 Respected by all systemd services
• Post #44: LoaderDeviceURL EFI Variable and systemd.pull='s origin kernel command line switch
• Post #45: cgroupv1 removal
• Post #46: ProtectHostname=private
• Post #47: homectl adopt + homectl register
• Post #48: systemd-machined Varlink APIs
• Post #49: DeferTrigger and "lenient" job mode
• Post #50: Automatic Removal of foreign UID owned delegate subgroups in the per-user service manager
• Post #51: Per-user ask-password protocol
• Post #52: PrivateUsers=full
• Post #53: LoadCredentialEncrypted= in the per-user service manager
• Post #54: dissect_image builtin in systemd-udevd
• Post #55: BPF Delegation via Tokens

I intend to do a similar series of serieses of posts for the next systemd release (v259), hence if you haven't left tech Twitter for Mastodon yet, now is the opportunity.

We intend to shorten the release cycle a bit for the future, and in fact managed to tag v259-rc1 already yesterday, just 2 months after v258. Hence, my series for v259 will begin soon, under the #systemd259 hash tag.

In case you are interested, here is the corresponding blog story for systemd v257, and here for v256.

17 Nov 2025 11:00pm GMT

It has been a long time since I published any update in this space. Since this was a year of colossal changes for me, maybe it is also time for me to make something different with this blog and publish something just for a change - why not start talking about XDC 2025?

This year, I attended XDC 2025 in Vienna as an Igalia developer. I was thrilled to see some faces from people I worked with in the past and people I'm working with now. I had a chance to hang out with some folks I worked with at AMD (Harry, Alex, Leo, Christian, Shashank, and Pierre), many Igalians (Žan, Job, Ricardo, Paulo, Tvrtko, and many others), and finally some developers from Valve. In particular, I met Tímur in person for the first time, even though we have been talking for months about GPU recovery. Speaking of GPU recovery, we held a workshop on this topic together.

The workshop was packed with developers from different companies, which was nice because it added different angles on this topic. We began our discussion by focusing on the topic of job resubmission. Christian began sharing a brief history of how the AMDGPU driver started handling resubmission and the associated issues. After learning from erstwhile experience, amdgpu ended up adopting the following approach:

1. When a job cause a hang, call driver specific handler.
2. Stop the scheduler.
3. Copy all jobs from the ring buffer, minus the job that caused the issue, to a temporary ring.
4. Reset the ring buffer.
5. Copy back the other jobs to the ring buffer.
6. Resume the scheduler.

Below, you can see one crucial series associated with amdgpu recovery implementation:

• https://lore.kernel.org/amd-gfx/20250701184451.11868-1-alexander.deucher@amd.com/T/#m5df543b5cbbdc31e2834c955d1e3e30b939cb77

The next topic was a discussion around the replacement of drm_sched_resubmit_jobs() since this function became deprecated. Just a few drivers still use this function, and they need a replacement for that. Some ideas were floating around to extract part of the specific implementation from some drivers into a generic function. The next day, Philipp Stanner continued to discuss this topic in his workshop, DRM GPU Scheduler.

Another crucial topic discussed was improving GPU reset debuggability to narrow down which operations cause the hang (keep in mind that GPU recovery is a medicine, not the cure to the problem). Intel developers shared their strategy for dealing with this by obtaining hints from userspace, which helped them provide a better set of information to append to the devcoredump. AMD could adopt this alongside dumping the IB data into the devcoredump (I am already investigating this).

Finally, we discussed strategies to avoid hang issues regressions. In summary, we have two lines of defense:

• IGT: At the IGT level, we can have more tests that insert malicious instructions into the ring buffer, forcing the driver into an invalid state and triggering the recovery process.
• HangTest suite: HangTest suite is a tool that simulates some potential hangs using Vulkan. Some tests are already available in this suite, but we should explore more creative combinations for trying to trigger hangs.

This year, as always, XDC was super cool, packed with many engaging presentations which I highly recommend everyone check out. If you are interested, check the schedule and the presentation recordings available on the X.Org Foundation Youtube page. Anyway, I hope this blog post marks the inauguration of a new era for this site, where I will start posting more content ranging from updates to tutorials. See you soon.

17 Nov 2025 12:00am GMT

Hi!

This month a lot of new features have added to the Goguma mobile IRC client. Hubert Hirtz has implemented drafts so that unsent text gets saved and network disconnections don't disrupt users typing a message. He also enabled replying to one's own messages, changed the appearance of short messages containing only emoji, upgraded our emoji library to Unicode version 16, fixed some linkifier bugs and added unit tests.

Markus Cisler has added a new option in the message menu to show a user's profile. I've added an on-disk cache for images (with our own implementation, because the widely used cached_network_image package is heavyweight). I've been working on displaying network icons and blocking users, but that work is not finished yet. I've also contributed some maintenance fixes for our webcrypto.dart dependency (toolkit upgrades and CI fixes).

The soju IRC bouncer has also got some love this month. delthas has contributed support for labeled-response for soju clients, allowing more reliable matching of server replies with client commands. I've introduced a new icon directive to configure an image representing the bouncer. soju v0.10.0 has been released, followed by soju v0.10.1 including bug fixes from Karel Balej and Taavi Väänänen.

In Wayland news, wlroots v0.19.2 and v0.18.3 have been released thanks to Simon Zeni. I've added support for the color-representation protocol for the Vulkan renderer, allowing clients to configure the color encoding and range for YCbCr content. Félix Poisot has been hard at work with more color management patches: screen default color primaries are now extracted from the EDID and exposed to compositors, the cursor is now correctly converted to the output's primaries and transfer function, and some work-in-progress patches switch the renderer API from a descriptive model to a prescriptive model.

go-webdav v0.7.0 has been released with a patch from prasad83 to play well with Thunderbird. I've updated clients to make multi-status errors non-fatal, returning partial data alongside the error.

I've released drm_info v2.9.0 with improvements mentioned in the previous status update plus support for the TILE connector property.

See you next month!

15 Nov 2025 10:00pm GMT