A recent #Amiga demo "Backslide to Arcanum" by Cosmic Orbs included a mind-blowing fullscreen 50Hz rotozoom effect on Amiga 500. Having created a rotozoomer on A500 back in the day I knew exactly how incredibly hard it is to make such routine run fast. The effect has now been dissected and there's also author's writeup.
• Dissect of the effect by Alexander Grupe: https://heckmeck.de/blog/skew-this/
• Jobbo's writeup: https://www.cosmicorbs.com/blog/backslide
• Backslide to Arcanum at Pouet: https://www.pouet.net/prod.php?which=96604
#demoscene #retrocomputing
Voyager 1 just got software update. 15 billion miles away from home :-)
#QEMU 9.0.0 is out:
https://www.qemu.org/2024/04/23/qemu-9-0-0/
https://wiki.qemu.org/ChangeLog/9.0
"'block: virtio-blk now supports multiqueue where different queues of a single disk can be processed by different I/O threads
migration: support for “mapped-ram” capability allowing for more efficient VM snapshots, improved support for zero-page detection, and checkpoint-restart support for VFIO
ARM: architectural feature support for ECV, NV, and NV2
ARM: board support for […] raspi4b (Raspberry Pi 4 Model B)"'
Ok, the fact that the "AI" (NPU) chip controller inside Intel's new Meteor Lake CPUs uses SPARC instruction set (from 1990?) was not on my bingo cards for this year. https://chipsandcheese.com/2024/04/22/intel-meteor-lakes-npu/
@Andi Luckily I’ve recently tested SGX cgroups patches with Tumbleweed, i.e. know how to compile equivalent distro kernel (as it is made for OpenSUSE) for any possible kernel tree :-) So can easily try this out once the bandwidth is available.
It is maybe even easier than Ubuntu kernel (which has been easiest so far):
./scripts/install-git-hooks # not sure whether this is really required
./scripts/tar-up.sh
export LINUX_GIT=~/work/linux-tpmdd # clean clone swithed to branch of your choice
./scripts/osc_wrapper kernel-source/kernel-default.spec
The packages land to /var/tmp/build-root/standard-x86_64/home/abuild/rpmbuild/RPMS/x86_64
. And obviously needs to be signed with a MOK key if secure boot is turned on.
I get something like this constantly with Steam:
[38438.072899] x86/split lock detection: #AC: ChaosGate.exe/11646 took a split_lock trap at address: 0x6fffe5f51242
[38441.268772] x86/split lock detection: #AC: ChaosGate.exe/11852 took a split_lock trap at address: 0x6ffff6801001
[38446.628277] x86/split lock detection: #AC: Loading.Preload/11762 took a split_lock trap at address: 0x6ffff6a3aee0
[38494.104580] i915 0000:03:00.0: [drm] GPU HANG: ecode 12:1:84dfd7f7, in ChaosGate.exe [11646]
[38494.104588] i915 0000:03:00.0: [drm] ChaosGate.exe[11646] context reset due to GPU hang
Any ideas? This is now KDE6/X11 but the similar hang happens also with Wayland.
CPU is i9-13900k, GPU is ARC A770 and OS is Tumbleweed. Kernel is latest mainline but this has happened also few previous kernel versions.
Also this seems to happen with any possible game but all of them are Windows games running with Proton.
MICROSOFT GitHub comments abused to push malware via Microsoft repo URLs
https://www.bleepingcomputer.com/news/security/github-comments-abused-to-push-malware-via-microsoft-repo-urls/
There, fixed it for you, @BleepingComputer