[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article-linux-7-2-risc-v-boot-overhead-eswin-support-zh":3,"article-related-linux-7-2-risc-v-boot-overhead-eswin-support-zh":33,"series-industry-c3403d63-8e0b-4efa-9693-21169878577f":78},{"id":4,"slug":5,"title":6,"content":7,"summary":8,"source":9,"source_url":10,"author":11,"image_url":12,"cover_image":12,"category":13,"language":14,"translated_content":11,"related_article_id":15,"keywords":16,"key_takeaways":25,"views":29,"created_at":30,"published_at":31,"topic_cluster_id":32},"c3403d63-8e0b-4efa-9693-21169878577f","linux-7-2-risc-v-boot-overhead-eswin-support-zh","Linux 7.2 讓 RISC-V 開機更省事","\u003Cp data-speakable=\"summary\">Linux 7.2 針對 \u003Ca href=\"\u002Ftag\u002Frisc-v\">RISC-V\u003C\u002Fa> 加入 4 項更新，重點是減少開機開銷、\u003Ca href=\"\u002Fnews\u002Fgemini-3-5-flash-computer-use-default-zh\">預設\u003C\u002Fa>支援 Eswin 平台，並修補核心路徑問題。\u003C\u002Fp>\u003Cp>看完這 4 項變更，你可以判斷自己的 RISC-V 板子是否能少改一點設定、開機是否更順，還能看出哪些更新真正影響日常維護。\u003C\u002Fp>\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>項目\u003C\u002Fth>\u003Cth>影響層面\u003C\u002Fth>\u003Cth>主要效果\u003C\u002Fth>\u003C\u002Ftr>\u003C\u002Fthead>\u003Ctbody>\u003Ctr>\u003Ctd>預設 Eswin SoC 支援\u003C\u002Ftd>\u003Ctd>板卡相容性\u003C\u002Ftd>\u003Ctd>defconfig 更容易直接開機\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>HAVE_BUILDTIME_MCOUNT_SORT\u003C\u002Ftd>\u003Ctd>開機與 tracing\u003C\u002Ftd>\u003Ctd>link time 排序，減少 ftrace 初始化工作\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>cacheinfo 記憶體修正\u003C\u002Ftd>\u003Ctd>穩定性\u003C\u002Ftd>\u003Ctd>修掉潛在 memory leak\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>其他 clean-ups\u003C\u002Ftd>\u003Ctd>維護性\u003C\u002Ftd>\u003Ctd>讓 RISC-V 程式碼更好維護\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftbody>\u003C\u002Ftable>\u003Ch2>1. 預設 Eswin SoC 支援\u003C\u002Fh2>\u003Cp>這次最直接影響使用者的改動，是 RISC-V 的 defconfig 現在預設啟用 Eswin SoC 支援。對採用 Eswin 晶片的板子來說，這代表核心設定更有機會一開就對上硬體。\u003C\u002Fp>\n\u003Cfigure class=\"my-6\">\u003Cimg src=\"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782448366036-f12p.png\" alt=\"Linux 7.2 讓 RISC-V 開機更省事\" class=\"rounded-xl w-full\" loading=\"lazy\" \u002F>\u003C\u002Ffigure>\n\u003Cp>像 \u003Ca href=\"https:\u002F\u002Fwww.sifive.com\u002Fboards\u002Fhifive-premier-p550\">SiFive HiFive Premier P550\u003C\u002Fa> 這類板子，受益會特別明顯，因為開發者或發行版維護者不必先手動補設定，才能把系統帶到可用狀態。\u003C\u002Fp>\u003Cul>\u003Cli>套用在預設 RISC-V kernel config\u003C\u002Fli>\u003Cli>對 Eswin-based 板子更友善\u003C\u002Fli>\u003Cli>減少維護者額外 patch config 的步驟\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>2. ftrace 初始化少做一點事\u003C\u002Fh2>\u003Cp>Linux 7.2 在 RISC-V 上啟用 HAVE_BUILDTIME_MCOUNT_SORT，讓建置時就先把 \u003Ccode>__mcount_loc\u003C\u002Fcode> 區段排好序。這樣一來，ftrace 初始化階段要做的工作就更少，開機時的額外負擔也能下降。\u003C\u002Fp>\u003Cp>這不是功能上的大改版，但它碰到的是每次開機都會走到的路徑。對在意 boot time、tracing 或早期核心行為的人來說，這類調整很實際。\u003C\u002Fp>\u003Cul>\u003Cli>排序在 link time 完成\u003C\u002Fli>\u003Cli>直接作用於 \u003Ccode>__mcount_loc\u003C\u002Fcode>\u003C\u002Fli>\u003Cli>減少 ftrace init 的工作量\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>3. 核心程式碼清理\u003C\u002Fh2>\u003Cp>除了開機相關更新，這批 RISC-V 變更也包含一些 \u003Ca href=\"\u002Fnews\u002Fclaude-code-terminal-main-workflow-guide-zh\">code\u003C\u002Fa> clean-ups。它們不一定會讓使用者立刻感受到差異，但對架構支援的長期維護很重要。\u003C\u002Fp>\n\u003Cfigure class=\"my-6\">\u003Cimg src=\"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782448364758-4ecv.png\" alt=\"Linux 7.2 讓 RISC-V 開機更省事\" class=\"rounded-xl w-full\" loading=\"lazy\" \u002F>\u003C\u002Ffigure>\n\u003Cp>RISC-V 還在持續擴張到更多板子與 SoC，程式碼越乾淨，後續新增功能或修 bug 時就越容易審查，也比較不會把舊複雜度一路帶下去。\u003C\u002Fp>\u003Cul>\u003Cli>屬於架構層級的維護工作\u003C\u002Fli>\u003Cli>沒有新的使用者開關\u003C\u002Fli>\u003Cli>有助於後續功能擴充\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>4. cacheinfo 的記憶體修正\u003C\u002Fh2>\u003Cp>這次也修了一個 cacheinfo 相關的潛在記憶體洩漏。這種問題平常不一定看得出來，但在長時間運作的系統上，對穩定性和資源管理都很重要。\u003C\u002Fp>\u003Cp>對 kernel 開發者來說，這類修正是讓架構支援更成熟的必要工作；對使用者來說，重點很單純，就是核心路徑少一個 bug，長跑時也更安心。\u003C\u002Fp>\u003Ccode>RISC-V Linux 7.2 updates include:\n- Eswin SoC support enabled by default\n- HAVE_BUILDTIME_MCOUNT_SORT enabled\n- cacheinfo memory leak fix\n- additional clean-ups and fixes\u003C\u002Fcode>\u003Ch2>5. 對新 RISC-V 建置更友善\u003C\u002Fh2>\u003Cp>把這些變更放在一起看，方向很清楚：RISC-V 的預設核心設定正在變得更實用。Eswin 支援補強了開箱即用的覆蓋率，開機與 bug 修正則讓早期啟動和核心行為更穩。\u003C\u002Fp>\u003Cp>這對做硬體 bring-up、發行版\u003Ca href=\"\u002Fnews\u002Fqualcomm-soft-hard-escape-cuda-zh\">整合\u003C\u002Fa>或嵌入式部署的人最有感，因為 defconfig 越少要手動改，從原始碼到成功開機的距離就越短。\u003C\u002Fp>\u003Cul>\u003Cli>預設覆蓋更完整\u003C\u002Fli>\u003Cli>維護者少做手動設定\u003C\u002Fli>\u003Cli>有小幅效能與穩定性收益\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>怎麼挑\u003C\u002Fh2>\u003Cp>如果你手上有 \u003Ca href=\"https:\u002F\u002Fwww.sifive.com\u002Fboards\u002Fhifive-premier-p550\">SiFive HiFive Premier P550\u003C\u002Fa> 或其他 Eswin-based RISC-V 板子，最值得注意的是預設支援這一項。如果你更在意開機流程與 tracing 開銷，就該先看 ftrace 初始化的調整。\u003C\u002Fp>\u003Cp>如果你是追 RISC-V upstream 進度的人，這次的訊號也很明確：它不只是在加平台支援，也在把預設行為和核心細節慢慢磨順。\u003C\u002Fp>","4 項 RISC-V 更新讓 Linux 7.2 開機更輕、Eswin 板子更容易直接啟動，也補上核心修正。","www.phoronix.com","https:\u002F\u002Fwww.phoronix.com\u002Fnews\u002FLinux-7.2-RISC-V",null,"https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782448366036-f12p.png","industry","zh","1322c54c-47c2-4ebc-8da2-ca6ed94f3872",[17,18,19,20,21,22,23,24],"Linux 7.2","RISC-V","Eswin SoC","ftrace","HAVE_BUILDTIME_MCOUNT_SORT","cacheinfo","kernel","boot overhead",[26,27,28],"Eswin SoC 支援預設啟用，對相關 RISC-V 板子更容易開箱即用。","HAVE_BUILDTIME_MCOUNT_SORT 讓 ftrace 初始化少做事，降低開機開銷。","cacheinfo 記憶體修正與程式碼清理，提升長期穩定性與維護性。",0,"2026-06-26T04:32:19.192738+00:00","2026-06-26T04:32:19.186+00:00","a8cde939-2f8d-4d1f-bf73-9f33a0ced1f6",{"tags":34,"relatedLang":37,"relatedPosts":41},[35],{"name":18,"slug":36},"risc-v",{"id":15,"slug":38,"title":39,"language":40},"linux-7-2-risc-v-boot-overhead-eswin-support-en","Linux 7.2 trims RISC-V boot overhead and adds Eswin support","en",[42,48,54,60,66,72],{"id":43,"slug":44,"title":45,"cover_image":46,"image_url":46,"created_at":47,"category":13},"e5ddd81c-7a48-4394-8271-71863ee7034c","product-hunt-best-prompt-engineering-tools-2026-zh","5 款 Prompt 工具各自最適合的工作","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782507772922-ljrs.png","2026-06-26T21:02:19.140423+00:00",{"id":49,"slug":50,"title":51,"cover_image":52,"image_url":52,"created_at":53,"category":13},"bc15b4e6-06b0-4237-869b-23ec02cc24e1","xcode-266-gemini-ai-coding-stack-zh","Xcode 26.6 把 Gemini 納入 Apple AI 編碼堆疊","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782497870523-0glb.png","2026-06-26T18:17:25.179841+00:00",{"id":55,"slug":56,"title":57,"cover_image":58,"image_url":58,"created_at":59,"category":13},"4edf30e4-8159-43f6-aa25-073d98a971cf","openai-anthropic-must-sell-efficiency-not-excess-zh","OpenAI 與 Anthropic 必須賣效率，不是賣耗用","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782496966108-3grw.png","2026-06-26T18:02:19.661289+00:00",{"id":61,"slug":62,"title":63,"cover_image":64,"image_url":64,"created_at":65,"category":13},"315693f2-be56-411d-a51f-4d1d7f94d29c","ai-code-review-tools-catch-issues-earlier-zh","10 款 AI 程式碼審查工具，提早抓出問題","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782491579498-09ad.png","2026-06-26T16:32:31.773823+00:00",{"id":67,"slug":68,"title":69,"cover_image":70,"image_url":70,"created_at":71,"category":13},"bfdb1e4f-5d0d-47b7-9d77-18ffbe8505fc","openai-ipo-delay-turns-hype-into-caution-zh","OpenAI 延後 IPO，把熱度變警惕","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782489796442-d5rz.png","2026-06-26T16:02:50.943965+00:00",{"id":73,"slug":74,"title":75,"cover_image":76,"image_url":76,"created_at":77,"category":13},"6060d642-55b6-444c-811d-60388b99d5d1","suno-launches-spark-indie-artists-zh","Suno 用 Spark 拉攏獨立音樂人","https:\u002F\u002Fxxdpdyhzhpamafnrdkyq.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Fcovers\u002Finline-1782486181801-h39c.png","2026-06-26T15:02:31.668699+00:00",[79,84,89,94,99,104,109,114,119,124],{"id":80,"slug":81,"title":82,"created_at":83},"ee073da7-28b3-4752-a319-5a501459fb87","ai-in-2026-what-actually-matters-now-zh","2026 AI 真正重要的事","2026-03-26T07:09:12.008134+00:00",{"id":85,"slug":86,"title":87,"created_at":88},"83bd1795-8548-44c9-9a7e-de50a0923f71","trump-ai-framework-power-speech-state-preemption-zh","川普 AI 框架瞄準電力、言論與州權","2026-03-26T07:12:18.695466+00:00",{"id":90,"slug":91,"title":92,"created_at":93},"ea6be18b-c903-4e54-97b7-5f7447a612e0","nvidia-gtc-2026-big-ai-announcements-zh","NVIDIA GTC 2026 重點拆解","2026-03-26T07:14:26.62638+00:00",{"id":95,"slug":96,"title":97,"created_at":98},"4bcec76f-4c36-4daa-909f-54cd702f7c93","claude-users-spreading-out-and-getting-better-zh","Claude 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