Intel(R) Wi-Fi 7 BE200 320MHz, kernel warning and freeze
When I run sudo iwctl station wlan0 connect wifiname for the first time during a boot, iwctl would error
No matching method found
Failed to retrieve IWD dbus objects, quitting...
MaskRay
/ be_prefix_varint.c
Last active
November 17, 2025 04:30
variants of Little Endian Base 128 where the length information is in the first byte
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| #include <assert.h> | |
| #include <inttypes.h> | |
| #include <stdbit.h> | |
| #include <stdio.h> | |
| #include <string.h> | |
| /* | |
| Big-endian prefix varint encoding for 64-bit integers. | |
| The first byte determines the total length using most significant bits. |
MaskRay
/ eh_frame_results.csv
Last active
October 24, 2025 07:13
Analyze .eh_frame section size distribution across executables and shared libraries on a Linux system
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| File | Total_VM_KB | EH_Frame_VM_KB | EH_Frame_Ratio | |
|---|---|---|---|---|
| /usr/bin/s390x-linux-gnu-lto-dump-14 | 26112.0 | 1863.68 | 7.1373 | |
| /usr/bin/pnmcrop | 18.7 | 0.34765625 | 1.8591 | |
| /usr/bin/uclampset | 17.9 | 1.23 | 6.8715 | |
| /usr/bin/atktopbm | 6.36 | 0.18359375 | 2.8867 | |
| /usr/bin/getent | 26.1 | 1.3 | 4.9808 | |
| /usr/bin/systemd-firstboot | 52.1 | 1.2 | 2.3033 | |
| /usr/bin/busctl | 82.9 | 1.79 | 2.1592 | |
| /usr/bin/arm-linux-gnueabi-g++ | 1853.44 | 113.0 | 6.0968 | |
| /usr/bin/loadunimap | 22.2 | 0.765625 | 3.4488 |
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| #include <assert.h> | |
| #include <stdbit.h> | |
| #include <stdint.h> | |
| #include <stdio.h> | |
| #include <string.h> | |
| /* | |
| little-endian suffix varint | |
| xxxxxxx1: 7 value bits, 1 byte |
MaskRay
/ bench.rb
Last active
September 17, 2025 17:14
https://maskray.me/blog/2025-08-31-benchmarking-compression-programs program, distributed under the terms of both the MIT license and the Apache License (Version 2.0)
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| #!/usr/bin/env ruby | |
| # This program downloads and builds several compression utilities, benchmarks their compression and decompression | |
| # performance on a specific input file including memory consumption, and finally generates HTML charts. | |
| require 'benchmark' | |
| require 'digest' | |
| require 'etc' | |
| require 'fileutils' | |
| require 'json' | |
| require 'net/http' | |
| require 'optparse' |
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| Aug 23 10:58:15 blitz kernel: Linux version 6.16.1-arch1-1 (linux@archlinux) (gcc (GCC) 15.2.1 20250813, GNU ld (GNU Binutils) 2.45.0) #1 SMP PREEMPT_DYNAMIC Fri, 15 Aug 2025 16:04:43 +0000 | |
| Aug 23 10:58:15 blitz kernel: Command line: BOOT_IMAGE=/vmlinuz-linux root=/dev/nvme0n1p3 | |
| Aug 23 10:58:15 blitz kernel: x86/CPU: Model not found in latest microcode list | |
| Aug 23 10:58:15 blitz kernel: x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks | |
| Aug 23 10:58:15 blitz kernel: BIOS-provided physical RAM map: | |
| Aug 23 10:58:15 blitz kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable | |
| Aug 23 10:58:15 blitz kernel: BIOS-e820: [mem 0x000000000009f000-0x00000000000fffff] reserved | |
| Aug 23 10:58:15 blitz kernel: BIOS-e820: [mem 0x0000000000100000-0x000000005df8afff] usable | |
| Aug 23 10:58:15 blitz kernel: BIOS-e820: [mem 0x000000005df8b000-0x000000005e88afff] reserved | |
| Aug 23 10:58:15 blitz kernel: BIOS-e820: [mem 0x000000005e88b000-0x00000000606befff] usab |
MaskRay
/ journalctl-b.log
Created
August 5, 2025 05:11
Linux version 6.15.8-arch1-2 (linux@archlinux), random freeze
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| Aug 04 20:13:02 blitz kernel: Linux version 6.15.8-arch1-2 (linux@archlinux) (gcc (GCC) 15.1.1 20250729, GNU ld (GNU Binutils) 2.45.0) #1 SMP PREEMPT_DYNAMIC Tue, 29 Jul 2025 15:05:00 +0000 | |
| Aug 04 20:13:02 blitz kernel: Command line: BOOT_IMAGE=/vmlinuz-linux root=/dev/nvme0n1p3 | |
| Aug 04 20:13:02 blitz kernel: x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks | |
| Aug 04 20:13:02 blitz kernel: BIOS-provided physical RAM map: | |
| Aug 04 20:13:02 blitz kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable | |
| Aug 04 20:13:02 blitz kernel: BIOS-e820: [mem 0x000000000009f000-0x00000000000fffff] reserved | |
| Aug 04 20:13:02 blitz kernel: BIOS-e820: [mem 0x0000000000100000-0x000000005df8afff] usable | |
| Aug 04 20:13:02 blitz kernel: BIOS-e820: [mem 0x000000005df8b000-0x000000005e88afff] reserved | |
| Aug 04 20:13:02 blitz kernel: BIOS-e820: [mem 0x000000005e88b000-0x00000000606befff] usable | |
| Aug 04 20:13:02 blitz kernel: BIOS-e820: [mem 0x00000000606bf000-0x0000000062 |
MaskRay
/ journalctl-b.log
Last active
July 15, 2025 04:47
Eurocom Blitz Ultra 2, Ubuntu 24.04, no system freeze
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| Jul 14 18:20:35 blitz kernel: Linux version 6.11.0-29-generic (buildd@lcy02-amd64-008) (x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, GNU ld (GNU Binutils for Ubuntu) 2.42) #29~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Jun 26 14:16:59 UTC 2 (Ubuntu 6.11.0-29.29~24.04.1-generic 6.11.11) | |
| Jul 14 18:20:35 blitz kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-6.11.0-29-generic root=UUID=bbe63c72-8360-4612-996c-1f26ef0ef727 ro quiet splash vt.handoff=7 | |
| Jul 14 18:20:35 blitz kernel: KERNEL supported cpus: | |
| Jul 14 18:20:35 blitz kernel: Intel GenuineIntel | |
| Jul 14 18:20:35 blitz kernel: AMD AuthenticAMD | |
| Jul 14 18:20:35 blitz kernel: Hygon HygonGenuine | |
| Jul 14 18:20:35 blitz kernel: Centaur CentaurHauls | |
| Jul 14 18:20:35 blitz kernel: zhaoxin Shanghai | |
| Jul 14 18:20:35 blitz kernel: x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks | |
| Jul 14 18:20:35 blitz kernel: BIOS-provided physical RAM map: |
MaskRay
/ journalctl-b.log
Created
July 13, 2025 03:39
Eurocom Blitz Ultra 2, no kernel "bad"/"oops" record before freezing
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| Jul 12 16:53:19 hacking kernel: Linux version 6.15.6-arch1-1 (linux@archlinux) (gcc (GCC) 15.1.1 20250425, GNU ld (GNU Binutils) 2.44.0) #1 SMP PREEMPT_DYNAMIC Thu, 10 Jul 2025 17:10:18 +0000 | |
| Jul 12 16:53:19 hacking kernel: Command line: initrd=\intel-ucode.img initrd=\initramfs-linux.img root=UUID=2403f944-7fdf-4185-8119-4f6fd8f7f887 rw intel_idle.max_cstate=2 | |
| Jul 12 16:53:19 hacking kernel: x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks | |
| Jul 12 16:53:19 hacking kernel: BIOS-provided physical RAM map: | |
| Jul 12 16:53:19 hacking kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable | |
| Jul 12 16:53:19 hacking kernel: BIOS-e820: [mem 0x000000000009f000-0x00000000000fffff] reserved | |
| Jul 12 16:53:19 hacking kernel: BIOS-e820: [mem 0x0000000000100000-0x000000005df8afff] usable | |
| Jul 12 16:53:19 hacking kernel: BIOS-e820: [mem 0x000000005df8b000-0x000000005e88afff] reserved | |
| Jul 12 16:53:19 hacking kernel: BIOS-e820: [mem 0x000000005e88b000-0x0000 |
MaskRay
/ journalctl-b.log
Created
July 12, 2025 22:41
Eurocom Ultra Blitz 2 freeze 15:25 kernel log, 15:33 freeze
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| Jul 12 15:12:14 hacking kernel: Linux version 6.15.6-arch1-1 (linux@archlinux) (gcc (GCC) 15.1.1 20250425, GNU ld (GNU Binutils) 2.44.0) #1 SMP PREEMPT_DYNAMIC Thu, 10 Jul 2025 17:10:18 +0000 | |
| Jul 12 15:12:14 hacking kernel: Command line: initrd=\intel-ucode.img initrd=\initramfs-linux.img root=UUID=2403f944-7fdf-4185-8119-4f6fd8f7f887 rw intel_idle.max_cstate=2 | |
| Jul 12 15:12:14 hacking kernel: x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks | |
| Jul 12 15:12:14 hacking kernel: BIOS-provided physical RAM map: | |
| Jul 12 15:12:14 hacking kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009efff] usable | |
| Jul 12 15:12:14 hacking kernel: BIOS-e820: [mem 0x000000000009f000-0x00000000000fffff] reserved | |
| Jul 12 15:12:14 hacking kernel: BIOS-e820: [mem 0x0000000000100000-0x000000005df8afff] usable | |
| Jul 12 15:12:14 hacking kernel: BIOS-e820: [mem 0x000000005df8b000-0x000000005e88afff] reserved | |
| Jul 12 15:12:14 hacking kernel: BIOS-e820: [mem 0x000000005e88b000-0x0000 |
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