Anyone interested on keyring:

https://web.git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git/commit/?h=keys-graveyard

If this would work out then possibly also radiate to /proc/keys.

I.e. it could also similarly "knock for reference" but that is not within scope of this patch.

#linux #kernel #keyring

Happy International Asexuality Day!

My fourth Obnam 3 development session. Put into place the scaffolding to add chunk encryption, but didn't have the time to actually implement the encryption.

Small steps and tea is the way to reach goals while having fun.

(Obnam 3 is my Sunday project to experiment with implementing fundamental components for backup software.)

https://obnam.org/blog/2025/obnam3-04

#obnam #backupImplementation

BREAKING: The C++ committee imposes tariffs on non-US locales.

Telegram asked me pin, which was 26214, which is same as the number of colors on #Amiga 1200 ;-)

That at least what I recall...

Quite cool, I have to say. fwupdmgr managed to update my HP USB-C Dock G5.

recycle is now free, the program to create .rex loops: https://www.reasonstudios.com/recycle

fun Linux fact: because MAP_SHARED|MAP_ANONYMOUS is actually a file-backed mapping under the hood, unmapping part of such a mapping does not discard the data stored in that part:

$ cat mremap.c
#define _GNU_SOURCE
#include <err.h>
#include <stdio.h>
#include <sys/mman.h>
int main(void) {
  char *p = mmap(NULL, 0x2000, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, 0);
  if (p == MAP_FAILED) err(1, "mmap");
  p[0x1000] = 'X';
  if (munmap(p+0x1000, 0x1000)) err(1, "munmap");
  // that 'X' we just wrote... is it gone?
  // nope, let's bring it back!
  p = mremap(p, 0x1000, 0x2000, MREMAP_MAYMOVE);
  if (p == MAP_FAILED) err(1, "mremap");
  printf("p[0x1000]='%c'\n", p[0x1000]);
}
$ gcc -o mremap mremap.c
$ ./mremap
p[0x1000]='X'
$

https://lore.kernel.org/keyrings/20250329183243.719222-1-jarkko@kernel.org/T/#u

US government’s attack on free speech, science, and research is causing a brain drain

How do you create a brain drain and lose your status as eminent destination for scientists and researchers?

The United States seems to be sending out questionnaires to researchers at universities and research institutes outside of the United States, asking them about their political leanings. Dutch universities are strongly advising Dutch researches not to respond to the questionnaire

https://www.osnews.com/story/141972/us-governments-attack-on-free-speech-science-and-research-is-causing-a-brain-drain/

8 Bits High live at a local museum near my home year ago:

https://www.youtube.com/watch?v=ioXT82QwgAo

Vapriikki (https://www.vapriikki.fi/en/) has e.g.,

1. Most extensive video game museum in Finland.
2. Some other tech stuff like the first ever IRC Server in a glass case ;-)

Great place to visit if around here.

#c64 #chiptune

This is insane:

https://www.nature.com/articles/d41586-025-00938-y

I started to do my second gym program with the move that I hate the most because it is such a struggle: Bulgarian squat.

I guess that means it does something...

#gym

https://www.newsweek.com/usha-vance-greenland-visit-plans-changed-2051887

This week Michael Hudson-Doyle of the #Ubuntu Foundations team published a write-up of our experimentation with the `-O3` GCC flag by default in the distribution.

The tl;dr is that we don't yet believe that the change makes sense globally, but there are certainly come packages that would benefit from using the increased optimisation level.

See the post here: https://discourse.ubuntu.com/t/benchmarking-a-distribution-and-some-o3-results/58027

disclaimer: not real (but still funny)

IMHO, AMD, Intel and ARM should step up and start provide some cheap and accessible hardware that you can use at your home, and not intended for rolling out cash (i.e. something like NUC), but only to allow kernel maintainers and operating system developers to test their server features.

Cheap means here something like less than 1000 euros.

E.g., in Intel SGX the latest and greatest are NUC7's from 2018 and for VM based confidential computing there's nothing appropriate.

Shame on you CPU companies!

#arm #intel #amd #cpu

oh dear...

References:

1. https://nitter.poast.org/antii__dote/status/1905269353387303122#m
2. https://nitter.poast.org/P_Kallioniemi/status/1905176792337461363#m

I wish I read more tech books where the author thanks her lovely husband for patience and encougarement. Acknowledgements are like a time trip 50s family model. #tech #books