{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fryuichi1208.hateblo.jp%2Fentry%2F2025%2F12%2F20%2F000000\" title=\"\u3010Linux\u3011malloc\u304c\u5931\u6557\u3059\u308b\u3068\uff1f - \u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u3010Linux\u3011malloc\u304c\u5931\u6557\u3059\u308b\u3068\uff1f","url":"https://ryuichi1208.hateblo.jp/entry/2025/12/20/000000","categories":[],"type":"rich","width":"100%","height":"190","version":"1.0","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","author_name":"ryuichi1208","description":"\u3053\u306e\u8a18\u4e8b\u306f\u300c\u6e21\u90e8 Advent Calendar 2025\u300d\u306e20\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002 \u7d50\u8ad6 malloc \u304c\u5931\u6557\u3059\u308b\u3068 NULL \u3092\u8fd4\u3059\u3002 \u4f55\u3082\u8d77\u304d\u306a\u3044\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u300c\u4f55\u3082\u78ba\u4fdd\u3055\u308c\u306a\u304b\u3063\u305f\u300d\u3068\u3044\u3046\u72b6\u614b\u306b\u306a\u308b\u3002 malloc \u304c\u5931\u6557\u3059\u308b\u6761\u4ef6 malloc(size) \u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u6761\u4ef6\u3067\u5931\u6557\u3057\u307e\u3059\u3002 \u8981\u6c42\u30b5\u30a4\u30ba\u3092\u6e80\u305f\u3059 \u9023\u7d9a\u3057\u305f\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593 \u304c\u78ba\u4fdd\u3067\u304d\u306a\u3044 OS \u3084\u30e9\u30f3\u30bf\u30a4\u30e0\u306e\u5236\u9650\u306b\u5f15\u3063\u304b\u304b\u308b \u4ee3\u8868\u7684\u306a\u4f8b\u3068\u3057\u3066\u306f\u4ee5\u4e0b\u304c\u3042\u308a\u307e\u3059\u3002 \u30d7\u30ed\u30bb\u30b9\u306e\u4eee\u60f3\u30e1\u30e2\u30ea\u4e0a\u9650\uff08ulimit -v\uff09 cgroup / \u30b3\u30f3\u30c6\u30ca\u306e memory limit \u30e1\u30e2\u30ea\u306e\u65ad\u7247\u5316\uff08\u5de8\u5927\u306a\u9023\u7d9a\u9818\u57df\u304c\u53d6\u308c\u306a\u3044\uff09 overcommi\u2026","image_url":null,"published":"2025-12-20 00:00:00","blog_url":"https://ryuichi1208.hateblo.jp/","blog_title":"\u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/ryuichi1208/"}