{"id":133870,"date":"2026-04-14T11:37:48","date_gmt":"2026-04-14T02:37:48","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=133870"},"modified":"2026-04-14T11:37:48","modified_gmt":"2026-04-14T02:37:48","slug":"macos-26-tcp-timer-bug","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/macos-26-tcp-timer-bug\/","title":{"rendered":"49.7\u65e5\u5f8c\u306bTCP\u304c\u505c\u6b62\uff1fmacOS Tahoe\u3067\u5c0e\u5165\u3055\u308c\u305f\u65b0\u305f\u306a\u30d0\u30b0\u304b"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2025\/06\/macos-tahoe.jpg\" alt=\"\" width=\"800\" height=\"450\" class=\"aligncenter size-full wp-image-129428\" \/><\/p>\n<p>Photon\u304c\u516c\u958b\u3057\u305f\u300cmacOS\u306eTCP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c49.7\u65e5\u5f8c\u306b\u58ca\u308c\u308b\u300d\u3068\u3044\u3046<a href=\"http:\/\/Photon\u304c\u516c\u958b\u3057\u305f\u300cmacOS\u306eTCP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c49.7\u65e5\u5f8c\u306b\u58ca\u308c\u308b\u300d\u3068\u3044\u3046\u8a18\u4e8b\u304c\u5927\u304d\u306a\u8a71\u984c\u306b\u306a\u308a\u307e\u3057\u305f\u3002\">\u8a18\u4e8b<\/a>\u304c\u5927\u304d\u306a\u8a71\u984c\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u30b7\u30b9\u30c6\u30e0\u306e\u9023\u7d9a\u7a3c\u50cd\u6642\u9593\u304c49\u65e517\u6642\u95932\u520647\u79d2\u3092\u8d85\u3048\u308b\u3068\u3001TCP\u901a\u4fe1\u304c\u5f90\u3005\u306b\u6a5f\u80fd\u4e0d\u5168\u3078\u9665\u308b\u3068\u3044\u3046\u5185\u5bb9\u3067\u3059\u3002<\/p>\n<p>Photon\u306e\u5143\u8a18\u4e8b\u306b\u306f\u30d0\u30b0\u304c\u767a\u751f\u3059\u308bmacOS\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u95a2\u3059\u308b\u60c5\u5831\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u5f8c\u306e<a href=\"https:\/\/news.ycombinator.com\/item?id=47666488\">Hacker News\u306e\u8b70\u8ad6<\/a>\u3084\u958b\u767a\u8005\u306b\u3088\u308b\u30b3\u30fc\u30c9\u89e3\u6790\u304b\u3089\u3001\u3053\u306e\u554f\u984c\u306f\u3059\u3079\u3066\u306emacOS\u3067\u8d77\u304d\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001macOS 26(Tahoe)\u3067\u5c0e\u5165\u3055\u308c\u305f\u65b0\u3057\u3044\u30d0\u30b0\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3053\u3068\u304c\u898b\u3048\u3066\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5143\u8a18\u4e8b\u306e\u5185\u5bb9\u306b\u52a0\u3048\u3001Hacker News\u3067\u660e\u3089\u304b\u306b\u306a\u3063\u305f\u8ffd\u52a0\u60c5\u5831\u3082\u542b\u3081\u3066\u3001\u72b6\u6cc1\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<h2>49.7\u65e5\u5f8c\u306b\u4f55\u304c\u8d77\u304d\u308b\u306e\u304b<\/h2>\n<p>\u554f\u984c\u306e\u6838\u5fc3\u306f\u3001macOS\u306eXNU\u30ab\u30fc\u30cd\u30eb\u304c\u6301\u3064TCP\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u7528\u306e32bit\u30ab\u30a6\u30f3\u30bf(tcp_now)\u306b\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30ab\u30a6\u30f3\u30bf\u306f\u30df\u30ea\u79d2\u5358\u4f4d\u3067\u5897\u52a0\u3057\u7d9a\u3051\u307e\u3059\u304c\u300132bit\u306e\u4e0a\u9650\u306b\u9054\u3059\u308b\u30680\u306b\u623b\u308b\u300c\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u300d\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p>\u901a\u5e38\u3067\u3042\u308c\u3070\u30e9\u30c3\u30d7\u30a2\u30e9\u30a6\u30f3\u30c9\u3092\u8003\u616e\u3057\u305f\u51e6\u7406\u304c\u5fc5\u8981\u3067\u3059\u304c\u3001XNU\u306e\u5b9f\u88c5\u3067\u306f\u300c\u5024\u304c\u524d\u3088\u308a\u5927\u304d\u3044\u3068\u304d\u3060\u3051\u66f4\u65b0\u3059\u308b\u300d\u3068\u3044\u3046\u30ac\u30fc\u30c9\u304c\u5b58\u5728\u3057\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5f8c\u306ftcp_now\u304c\u6c38\u9060\u306b\u66f4\u65b0\u3055\u308c\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u81f4\u547d\u7684\u306a\u6319\u52d5\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u7d50\u679c\u3001TCP\u306e\u5185\u90e8\u30bf\u30a4\u30de\u30fc\u304c\u3059\u3079\u3066\u505c\u6b62\u3057\u3001\u7279\u306bTIME_WAIT\u306e\u671f\u9650\u5207\u308c\u51e6\u7406\u304c\u5b8c\u5168\u306b\u6b62\u307e\u308b\u3053\u3068\u304c\u554f\u984c\u3092\u6df1\u523b\u5316\u3055\u305b\u307e\u3059\u3002<\/p>\n<p>Photon \u306e\u691c\u8a3c\u3067\u306f\u300149.7\u65e5\u3092\u5883\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5dee\u304c\u51fa\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u25cf \u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u524d<\/strong><\/p>\n<ul>\n<li>TIME_WAIT \u306f 30 \u79d2\u3067\u6b63\u5e38\u306b\u6d88\u3048\u308b<\/li>\n<li>\u6570\u767e\u306e\u63a5\u7d9a\u3092\u4f5c\u3063\u3066\u3082\u5b89\u5b9a<\/li>\n<\/ul>\n<p><strong>\u25cf \u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5f8c<\/strong><\/p>\n<ul>\n<li>TIME_WAIT \u304c\u4e00\u5207\u6d88\u3048\u306a\u3044<\/li>\n<li>\u6570\u5206\u3067\u6570\u767e\u3001\u6570\u6642\u9593\u3067\u6570\u5343\u3078\u5897\u52a0<\/li>\n<\/ul>\n<p>ping(ICMP)\u306f\u52d5\u304f\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u5b8c\u5168\u306b\u6b7b\u3093\u3060\u3088\u3046\u306b\u306f\u898b\u3048\u306a\u3044\u70b9\u3082\u5384\u4ecb\u3067\u3059\u3002<\/p>\n<h2>macOS Tahoe\u9650\u5b9a\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u3044\uff1f<\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u5143\u306b\u3057\u305fHacker News\u306e\u8b70\u8ad6\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u8ffd\u52a0\u60c5\u5831\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305a\u3001\u8907\u6570\u306e\u958b\u767a\u8005\u304cApple\u306eXNU\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u6bd4\u8f03\u3057\u3001\u554f\u984c\u306e\u30ac\u30fc\u30c9\u6761\u4ef6\u3001tcp_now\u306e\u6271\u3044\u3001TIME_WAIT\u306eGC\u306e\u6319\u52d5\u304c\u3001<a href=\"https:\/\/github.com\/apple-oss-distributions\/xnu\/blame\/f6217f891ac0bb64f3d375211650a4c1ff8ca1ea\/bsd\/netinet\/tcp_subr.c#L3753\">Tahoe\u3067\u8ffd\u52a0\u30fb\u5909\u66f4\u3055\u308c\u305f\u30b3\u30fc\u30c9\u30d1\u30b9<\/a>\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u6307\u6458\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001macOS Sequoia(macOS 15)\u3067\u306f\u300150\u65e5\u4ee5\u4e0a\u7a3c\u50cd\u3057\u3066\u3082\u554f\u984c\u306a\u3057\u3001Ventura\/Monterey\u3067\u3082\u518d\u73fe\u3057\u306a\u3044\u3001\u9006\u306bTahoe\u3067\u518d\u73fe\u3057\u305f\u3068\u3044\u3046\u5b9f\u4f53\u9a13\u3082\u3088\u305b\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u30b9\u30ea\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3068\u767a\u751f\u3057\u3065\u3089\u3044\u3068\u3044\u3046\u5831\u544a\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30d0\u30b0\u306f\u5b9f\u5728\u3059\u308b\u304c\u3001\u5f71\u97ff\u7bc4\u56f2\u306fTahoe\u306b\u307b\u307c\u9650\u5b9a\u304b<\/h2>\n<p>\u4eca\u56de\u306e\u8b70\u8ad6\u3092\u7dcf\u5408\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>49.7\u65e5\u554f\u984c\u306f\u5b9f\u5728\u3059\u308b<\/li>\n<li>\u305f\u3060\u3057 macOS 26\uff08Tahoe\uff09\u3067\u5c0e\u5165\u3055\u308c\u305f\u65b0\u3057\u3044\u30d0\u30b0\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044<\/li>\n<li>\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u518d\u73fe\u3057\u306a\u3044\u3068\u3044\u3046\u5831\u544a\u304c\u591a\u6570<\/li>\n<li>Photon \u306e\u5143\u8a18\u4e8b\u306f\u5f71\u97ff\u7bc4\u56f2\u3092\u5e83\u304f\u66f8\u304d\u3059\u304e\u3066\u3044\u308b<\/li>\n<li>24\/7 \u7a3c\u50cd\u306e Tahoe \u30de\u30b7\u30f3\u306f\u8981\u6ce8\u610f<\/li>\n<\/ul>\n<p>\u6280\u8853\u7684\u306b\u306f\u8208\u5473\u6df1\u3044\u30d0\u30b0\u3067\u3059\u304c\u3001\u300c\u3059\u3079\u3066\u306e macOS \u306b\u6f5c\u3080\u6642\u9650\u7206\u5f3e\u300d\u3068\u3044\u3046\u307b\u3069\u306e\u5e83\u7bc4\u306a\u554f\u984c\u3067\u306f\u306a\u3044\u3001\u3068\u3044\u3046\u306e\u304c\u73fe\u6642\u70b9\u3067\u306e\u6700\u3082\u59a5\u5f53\u306a\u7406\u89e3\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u306a\u304a\u5b9f\u969b\u306b\u624b\u5143\u306eMac mini 2018(macOS Sequoia)\u306f53\u65e5\u9023\u7d9a\u7a3c\u50cd\u4e2d\u3067\u3059\u304c\u3001TCP\u306f\u6b7b\u3093\u3067\u3044\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2026\/04\/s_20260414-_112851.webp\" alt=\"\" width=\"937\" height=\"586\" class=\"aligncenter size-full wp-image-133871\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Photon\u304c\u516c\u958b\u3057\u305f\u300cmacOS\u306eTCP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c49.7\u65e5\u5f8c\u306b\u58ca\u308c\u308b\u300d\u3068\u3044\u3046\u8a18\u4e8b\u304c\u5927\u304d\u306a\u8a71\u984c\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u30b7\u30b9\u30c6\u30e0\u306e\u9023\u7d9a\u7a3c\u50cd\u6642\u9593\u304c49\u65e517\u6642\u95932\u520647\u79d2\u3092\u8d85\u3048\u308b\u3068\u3001TCP\u901a\u4fe1\u304c\u5f90\u3005\u306b\u6a5f\u80fd\u4e0d\u5168\u3078\u9665\u308b\u3068\u3044\u3046\u5185\u5bb9\u3067\u3059 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":129428,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[4],"tags":[3480,4863],"class_list":["post-133870","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mac","tag-macos","tag-tahoe"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/133870","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=133870"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/133870\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/129428"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=133870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=133870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=133870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}