long time no commit

org/ideas.org

@@ -39,4 +39,7 @@ to fight against those exam website
 * refactor .emacs using org-mode literate programming and file structure
 * webzine
 * 完美随身听
+- 转盘输入
+- 能作为 TOTP 生成器
+- 能播放 bad apple
 * start wayland WM/DE in systemd-nspawn

org/internet_collections.org

@@ -281,6 +281,8 @@ finger [email protected]
 It's so cool, especially for testing and reviewing.(from [[https://www.ruanyifeng.com/blog/2023/02/weekly-issue-241.html][ruanyifeng 241]])
 ** [[https://akarin.dev][✨小透明・宸✨ 存在感消失的地方|ω•`)]]
 ** [[https://nichi.co][Nick Cao (#archlinux-cn matrix)]]
+** TODO [[http://akkartik.name/][Kartik Agaram]]
+*** [[http://akkartik.name/post/literate-programming][Literate programming: Knuth is doing it wrong]]
 
 
 ** B/HWS/fri3nds
@@ -385,6 +387,7 @@ inspiration: Veritasium
 **** [[https://youtu.be/9s8vjf_vLaA][SmoothLife on GPU]]
 **** [[https://youtu.be/iPrltr1b6Q4][I implemented Goto in OCaml]]
 **** [[https://youtu.be/PgDqBZFir1A][Weird Parts of C you probably never heard of: Hot loading, X macro]]
+**** [[https://youtu.be/b-q4QBy52AA][Web in Native Assembly (Linux x86_64)]]
 *** [[https://youtu.be/0rJ94rbdteE][Rust 让你感觉像个天才]]
 *** [[https://youtu.be/nfF91Z6fqGk][CMD 登录B站]]
 *** [[https://youtu.be/crnEygp4C6g][Jeff Geerling: FINALLY! A GPU works on the Raspberry Pi!]]
@@ -439,6 +442,7 @@ of services running on Earth and eventually
 bringing down BitBucket entirely as it could not
 handle writing through this interplanetary loop.
 #+END_EXAMPLE
+*** [[https://youtu.be/Kn0MxHlima0][My4TH - A discrete CPU Forth computer]]
 
 **  [[https://www.youtube.com/@Computerphile][<C>]]
 *** [[https://youtu.be/BAo5C2qbLq8][Network Time Protocol (NTP)]]
@@ -519,6 +523,10 @@ to filing patently fraudulent DMCA counter-notifications to avoid the terminatio
 yes
 *** [[https://youtu.be/n9YDz-Iwgyw][Reclaim your freedom with free libre software now - Richard Stallman of Free Software Movement]]
 When I was trying to download this video, I found that youtube-dl was broken!
+*** [[https://youtu.be/UDE4NxawbCs][Nostalgic Minecraft Music with Cool Instruments]]
+*** [[https://youtu.be/48AOOynnmqU][What Happened To Google Search?]]
+[[https://news.ycombinator.com/item?id=30347719][Hacker News: Google Search Is Dying]]
+*** [[https://youtu.be/k2C4lbbIH0c][How Raspberry Pis are made (Factory Tour)]]
 
 * r
 :PROPERTIES:
@@ -555,8 +563,7 @@ Huwawei NB!
 ** [[https://lore.kernel.org/lkml/[email protected]/][Linus: If you cannot explain a merge, then JUST DON'T DO IT]]
 ** [[https://lists.gnu.org/archive/html/emacs-devel/2023-01/msg00425.html][Re: Consideration for Rust contributions in Emacs]]
 from emacs-china, about multi-thread
-** [[https://lore.kernel.org/all/[email protected]/][We don't feel comfortable accepting patches from or relating to hardware produced by your organization]]
-** [[https://bugzilla.redhat.com/show_bug.cgi?id=2208553][xfs metadata corruption after upgrade to 6.3.3 kernel]]
+** [[https://lists.opensuse.org/archives/list/[email protected]/thread/KJMMAZFTP2MPKWKFZCYUROZFJ44BNVB5/][Leap Replacement - Results from recent contributor survey]]
 
 * Other
 :PROPERTIES:
@@ -616,3 +623,5 @@ BSD asm
 ** [[https://oldcompcz.github.io/jgs/][jgs ASCII art]]
 ** TODO [[http://retrobase.cn][retrobase 识旧知新]]
 ** [[https://www.zzzuckerberg.com][Legal Lullabies]]
+** [[https://11-90-an.github.io/rseditor][rseditor]]
+** [[https://floooh.github.io/visualz80remix/][Visual Z80 Remix]]

org/nanopi_freebsd.org

@@ -312,9 +312,66 @@ aur.archlinux.org  #07b
 
 我甚至还可以把 IPv6, SSL, MAIL, STREAM 的功能通通去掉, 因为我的环境用不到.
 
+* ZFS?
+之前我只是在唯一的U口上插了一个 32G U盘, 但随着我在服务器上放的东西越来越多并越来越依赖它,
+我开始对数据安全担忧: 万一哪天整个U盘坏了呢? 而且这似乎正在发生着, 我已经看到这样的报错了:
+#+BEGIN_EXAMPLE
+(da1:umass-sim1:1:0:0): CAM status: CCB request completed with an error
+(da1:umass-sim1:1:0:0): Retrying command, 1 more tries remain
+#+END_EXAMPLE
+所以我考虑用 ZFS 组个 RAIDz, 这样 3 块 32G U盘可以得到接近 64G 的空间并且允许一个U盘坏掉.
+创建存储池等基本操作请看 [[https://docs.freebsd.org/en/books/handbook/zfs/][Chapter 22. The Z File System (ZFS)]]
+弄完我就开心地睡觉了, 后台把之前U盘的东西 =rsync= 过来, 寻思这么先进的文件系统不会出什么问题吧, 即使有也能自我修复.
+第二天一早醒来, DEGRADED, 一个盘掉了, 查看 dmesg, 又是大量的报错:
+#+BEGIN_EXAMPLE
+(da1:umass-sim1:1:0:0): Retrying command, 0 more tries remain
+(da1:umass-sim1:1:0:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00 00 00 00 
+(da1:umass-sim1:1:0:0): CAM status: CCB request completed with an error
+(da1:umass-sim1:1:0:0): Error 5, Retries exhausted
+(da1:umass-sim1:1:0:0): got CAM status 0x44
+(da1:umass-sim1:1:0:0): fatal error, failed to attach to device
+da1 at umass-sim1 bus 1 scbus1 target 0 lun 0
+da1: <Netac OnlyDisk 2.00>  s/n 8355111095836336751 detached
+(da1:umass-sim1:1:0:0): Periph destroyed
+#+END_EXAMPLE
+嘶~ 不应该呀, 新买的盘. 拔掉尝试修复以及几次重启和重新创建阵列后, 还是过一段时间三个盘中就会有 1~2 个坏的.
+因为之前的盘一直没坏, 所以可以排除 USB 集线器的问题, 所以问题就出在 *朗科京东自营旗舰店* 上买的这仨盘.
+上 #archlinux-cn-offtopic 问一圈:
+#+BEGIN_EXAMPLE
+18:27 <digua> 各位, 朗科京东自营旗舰店 的U盘质量怎么样啊, 我买了 3 个, 组 ZFS 坏了俩
+...
+18:28 <nichi_bot> [啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊] > <@matterbridge:nichi.co> [digua] 各位, 朗科京东自营旗舰店 的U盘质量怎么样啊, 我买了 3 个, 组 ZFS 坏了俩
+18:28 <nichi_bot> [啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊] 。。。。。
+18:28 <nichi_bot> [gauge] u 盘还要 zfs 嘛
+18:28 <nichi_bot> [啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊] 你不知道 U 盘用的是最次最次的颗粒吗
+18:29 <nichi_bot> [啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊] 起夜级挑剩下来的给消费级 nvme 挑剩下来的给 sata 硬盘挑剩下来的给 U 盘
+18:29 <digua> gauge, 用在软路由上(
+18:30 <nichi_bot> [啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊] ？你软路由还 zfs
+18:30 <nichi_bot> [Kimiblock Moe] U 盘不就拿来刷 archiso 嘛
+18:30 <nichi_bot> [Kimiblock Moe] 除此以外还有啥用啊
+18:30 <nichi_bot> [啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊] 我以为 j1900 跑 esxi 和 pve 已经够离谱了
+18:31 <digua> 弄着玩呀
+18:31 <HoroBot> 🍋🙈🐰🙊🍈🌝
+18:31 <nichi_bot> [啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊] 你真要弄的话 建议搞点硬盘盒然后插 nvme
+...
+18:34 <nichi_bot> [Jack Smith] > <@matterbridge:nichi.co> [digua] 各位, 朗科京东自营旗舰店 的U盘质量怎么样啊, 我买了 3 个, 组 ZFS 坏了俩
+18:34 <nichi_bot> [Jack Smith] u盘不可靠🤣
+...
+18:34 <nichi_bot> [Jack Smith] > <啥玩意啊 咋回事啊 那咋整啊 大佬帮帮忙啊> ？你软路由还 zfs
+18:34 <nichi_bot> [Jack Smith] 我tf卡btrfs🙈
+#+END_EXAMPLE
+ZFS 这个技术很棒, 但得等我弄到靠谱的盘...
+
+又买了两个海康威视星云固态盘, 只买两个是因为我感觉小处理器可能计算校验和会有压力.
+这回速度可以, 3MB/s
+
+大量 IO 任务还是会阻塞, 可以用 =nq= 排个队列.
+
+
 * Ref
 - [[https://feng.si/posts/2019/06/freebsd-and-risc-v-the-future-of-open-source-iot-ecosystem/][FreeBSD 与 RISC-V: 开源物联网生态系统的未来]]
 - [[https://lists.freebsd.org/archives/freebsd-arm/2021-June/000149.html][freebsd-arm: FriendlyARM NanoPi R2S board support.]]
 - [[https://hauweele.net/~gawen/blog/?p=2662][FreeBSD on NanoPi R2S]] 提到网络有时会卡住, 我也遇到了
 - 关于 systemd 有个不错的视频: [[https://www.bilibili.com/video/BV1oo4y1x7Nw][【人肉精翻】systemd的悲剧]] [[https://youtu.be/o_AIw9bGogo][YouTube]]
 - [[https://docs.freebsd.org/en/articles/rc-scripting/][Practical rc.d scripting in BSD]]
+- [[https://szclsya.me/zh-cn/posts/storage/zfs-setup/][ZFS 入门指北：规划与创建存储池]]

org/study4fun.org

@@ -1,4 +1,8 @@
 #+TITLE: 逝题归档
+#+OPTIONS: html-postamble:nil
+
+
+
 
 [[../study4fun/Schematic_被物理老师打死的操作_Sheet_1_20200324132337.pdf][Schematic_被物理老师打死的操作]]
 [[../study4fun/Schematic_被物理老师打死的操作2_Sheet_1_20200325172133.pdf][Schematic_被物理老师打死的操作2]]

org/tmc_archive.org

@@ -32,3 +32,4 @@ NBT 标签的版本应转换为该作品最低兼容版本.
 
 * ref
 [[https://github.com/shenjackyuanjie/Minecraft_Science_Tree][Minecraft_Science_Tree by shenjack]]
+[[https://youtu.be/y3evoHjV3FM][Will We Ever Run Out Of Redstone?]]