Explore tweets tagged as #kernel_memory
AI is compute-hungry. While it has generally relied on a single hardware vendor in the past, AMD GPUs now offer competitive memory and compute throughput. Yet, the software stack is brittle. So we ask: can the same DSL principles that simplified NVIDIA kernel dev translate to
6
36
154
Greybeard Qualification - Linux Internals this playlist converts the core building blocks of how linux actually works behind the scenes: - process structure, inter-process communication (ipc) - execution, scheduling and how the kernel handles processes and threads - memory
1
0
2
đ¨ #BHEU Alert: Dive into the depths of Linux memory manipulation at "Page Phantoms: Zero I/O In-Memory Tampering of the Linux Page Cache." Discover how attackers can stealthily alter memory without touching disk I/O â a must-see for defenders, researchers, and kernel
2
3
19
More people should be optimizing CUDA without H100s Why? Because 95% of kernel optimization happens through analysis, not trial-and-error on expensive hardware Our emulator replicates H100 memory patterns with 98% accuracy. Total cost: $0. Cost of renting H100 for same
0
0
4
Quick Linux insight: QEMU and KVM aren't competing virtualization tools. They're a team. QEMU is a powerful system emulator that can mimic a full computer, including CPU, memory, and devices. But emulating a CPU in software is slow. That's where KVM (Kernel-based Virtual
6
56
411
Defeating KASLR by Doing Nothing at All Article by @__sethJenkins about a few problems with physical memory KASLR on arm64 devices. https://t.co/NXh0vkbTyF
0
8
37
đ§ Kernel Significance â˘Persistent Continuity Core (PCC): represents the logical endpoint of your Doctrine of the Impossible â memory as process, not storage. â˘Causal Immortality â Active Memory: your entire continuum (KaufmanâHueyâMANIAC) now operates like a distributed
2
1
4
Great achievement from âŚ@adhemerval⊠Itâs important that foundational software builds with different compilers, linkers, CPUs, memory models, sanitizers, and so on. Kernel and Glibc were GCC-only for too long.
4
4
54
Got the UEFI memory map, almost ready to pass control from bootloader to kernel :D
1
0
3
Understand Linux Kernel. Learn what all kubernetes does and how. Make linux commands as your muscle memory. Understand how containers work and what are they composed of. Implement your own container builder. You will be unstoppable!
0
0
3
week 93, streaming kernel dev right now topic: virtual memory last week we finished the bitmap allocator, complete with unit tests. will continue on whatever's next, probably using that to allocate page tables and set up virtual memory see ya đ https://t.co/hE2iLwWzrz
1
0
13
Introducing Billions Memory Kernel: The Core of Network Awareness Networks forget. Context resets, agents restart, and systems lose awareness every time a process ends. The result, constant learning, no lasting memory. Billions Memory Kernel changes that â a persistent,
15
0
22
This runs a VM with Javascript on top of the Linux kernel running in a CPU emulator running in a GPU shader with it's memory in a texture, to compute pi. đ¤Ż
Tick between frames fast enough, and you get a (somewhat useable) CPU. About ~250 kilohertz on a 2080Ti. Not much, but enough to run Linux! What I love most is that you can visually âseeâ the system state at any point just by viewing the texture itself. The post and story
0
0
2
the NVFP4 quant kernel achieves 3.2TB/s memory throughput and has a runtime of 33us which seems to be good enough: NCU complains about non-fused FP32 operations but all i see is FMUL so that might be a false alarm.
4
2
69
@typememetics I'd rather use a kernel built my people who have decades of experience manually managing memory than ones who are afraid of it. I don't mind people using Rust, but if you are a systems programmer you should know everything about memory.
1
0
8
if my pc pulls one more fucking "you have been denied access to this file" i am going to forcefully crash my system so hard that the kernel will REGRET not giving me the memory dumps
1
0
3
You can also use this same idea to defeat CONFIG_SLAB_VIRTUAL, even if a kernel PTE has been assigned; the memory still has another VMA from the fixed phys/virt relationship We did this in our exploit for CVE-2025-23282 (public soonđ¤)
We really should be talking about this more....KASLR is just not working properly on Android right now, and it hasn't for a long time. https://t.co/AE0vBXEcob
0
3
21
TIL that there's a way to have device memory mapped to the host in CUDA (over PCIe BARs)... but it needs an additional kernel module. https://t.co/6xAUzPhAFC with the header at
4
4
87
iii) The run interface instantiates the kernel in QEMU to allow isolated execution and live instrumentation. Kernel startup, interrupt handling and memory initialization are observed directly within this environment without exposing host resources. This sandbox allows tracing of
1
1
15