{"id":42551,"date":"2025-06-24T13:22:14","date_gmt":"2025-06-24T04:22:14","guid":{"rendered":"https:\/\/jouhou.main.jp\/?p=42551"},"modified":"2026-01-27T11:17:39","modified_gmt":"2026-01-27T02:17:39","slug":"ubuntu-efault-14-%e5%af%be%e7%ad%96%ef%bc%9a%e4%b8%8d%e6%ad%a3%e3%81%aa%e3%83%a1%e3%83%a2%e3%83%aa%e3%82%a2%e3%83%89%e3%83%ac%e3%82%b9%e3%82%a2%e3%82%af%e3%82%bb%e3%82%b9%e3%82%a8%e3%83%a9%e3%83%bc","status":"publish","type":"post","link":"https:\/\/jouhou.main.jp\/?p=42551","title":{"rendered":"Ubuntu EFAULT (14) \u5bfe\u7b56\uff1a\u4e0d\u6b63\u306a\u30e1\u30e2\u30ea\u30a2\u30c9\u30ec\u30b9\u30a2\u30af\u30bb\u30b9\u30a8\u30e9\u30fc\u300cBad address\u300d\u691c\u51fa\u3068\u5bfe\u51e6\u7de8"},"content":{"rendered":"\t\t
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\r\n \u6700\u77ed\u30c1\u30a7\u30c3\u30af<\/span>\r\n
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Ubuntu EFAULT (14)\u300cBad address\u300d\u3092\u6700\u77ed\u3067\u5207\u308a\u5206\u3051\u308b<\/div>\r\n
\u300c\u3069\u306e\u64cd\u4f5c\u3067\u300d\u300c\u3069\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u300d\u843d\u3061\u3066\u3044\u308b\u304b\u3092\u5148\u306b\u7279\u5b9a\u3057\u3001\u6700\u5c0f\u5909\u66f4\u3067\u53ce\u675f\u3055\u305b\u307e\u3059\u3002<\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\r\n\r\n
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\r\n 1<\/span>\r\n
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30\u79d2\u3067\u4e89\u70b9\u3092\u7d5e\u308b<\/div>\r\n
EFAULT\u306f\u300c\u4e0d\u6b63\u306a\u30a2\u30c9\u30ec\u30b9\u3092\u6e21\u3057\u305f\u300d\u30b5\u30a4\u30f3\u3067\u3059\u3002\u307e\u305a\u306f\u201c\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u3060\u3051\u201d\u304b\u201c\u7279\u5b9a\u306e\u30d1\u30b9\u64cd\u4f5c\u3060\u3051\u201d\u304b\u3092\u5207\u308a\u5206\u3051\u307e\u3059\u3002<\/div>\r\n 
id\r\nwhoami\r\ndate\r\necho \"exit_code=$?\"\r\ndmesg -T | tail -n 25\r\njournalctl -xe --no-pager | tail -n 60<\/pre>\r\n      <\/div>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  
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\r\n      2<\/span>\r\n      
\r\n        
\u4e89\u70b9\u5225\uff1a\u4eca\u5f8c\u306e\u9078\u629e\u3084\u884c\u52d5<\/div>\r\n        
\u5f53\u305f\u308a\u3084\u3059\u30443\u30d1\u30bf\u30fc\u30f3\u306b\u5206\u3051\u3066\u3001\u5fc5\u8981\u306a\u60c5\u5831\u3060\u3051\u3092\u53d6\u308a\u306b\u884c\u304d\u307e\u3059\uff08\u5909\u66f4\u306f\u6700\u5f8c\u306b\u307e\u3068\u3081\u3066\u6700\u5c0f\u3067\uff09\u3002<\/div>\r\n\r\n        
\r\n          
(A) \u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u3060\u3051\u3067\u767a\u751f\u3059\u308b\uff08\u30d3\u30eb\u30c9\u4e0d\u6574\u5408\u30fb\u30e1\u30e2\u30ea\u7834\u640d\u30fb\u4f9d\u5b58\u95a2\u4fc2\uff09<\/div>\r\n          
\u307e\u305a\u306f\u201c\u3069\u306esyscall\u304cEFAULT\u3092\u8fd4\u3057\u305f\u304b\u201d\u3092\u56fa\u5b9a\u3057\u307e\u3059\u3002<\/div>\r\n          
command -V <\u5931\u6557\u30b3\u30de\u30f3\u30c9>\r\nfile \"$(command -v <\u5931\u6557\u30b3\u30de\u30f3\u30c9>)\"\r\nldd \"$(command -v <\u5931\u6557\u30b3\u30de\u30f3\u30c9>)\" 2>\/dev\/null | head -n 30\r\nenv | grep -E '^LD_' || true\r\nstrace -f -o \/tmp\/efault.trace <\u5931\u6557\u30b3\u30de\u30f3\u30c9> <\u5f15\u6570...><\/pre>\r\n        <\/div>\r\n\r\n        
\r\n          
(B) \u30d5\u30a1\u30a4\u30eb\/\u30d1\u30b9\u64cd\u4f5c\u306e\u77ac\u9593\u306b\u51fa\u308b\uff08\u5bfe\u8c61\u30d1\u30b9\u30fb\u5b9f\u4f53\u30fb\u5883\u754c\u306e\u5207\u308a\u5206\u3051\uff09<\/div>\r\n          
\u540c\u3058\u30d1\u30b9\u3067\u518d\u73fe\u3059\u308b\u306a\u3089\u3001\u307e\u305a\u201c\u3069\u3053\u307e\u3067\u5230\u9054\u3057\u3066\u3044\u308b\u304b\u201d\u3092\u5206\u89e3\u3057\u307e\u3059\u3002<\/div>\r\n          
namei -l <\u5bfe\u8c61\u30d1\u30b9>\r\nls -ld <\u5bfe\u8c61\u30d1\u30b9>\r\nstat <\u5bfe\u8c61\u30d1\u30b9>\r\nstrace -f -e trace=openat,statx,access,read,write -o \/tmp\/efault.path.trace <\u5931\u6557\u30b3\u30de\u30f3\u30c9> <\u5f15\u6570...><\/pre>\r\n        <\/div>\r\n\r\n        
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(C) \u5171\u6709\/NFS\/FUSE\/\u30b3\u30f3\u30c6\u30ca\u5883\u754c\u304c\u7d61\u3080\uff08\u898b\u843d\u3068\u3057\u9632\u6b62\uff09<\/div>\r\n          
\u5883\u754c\u304c\u7d61\u3080\u3068\u3001\u540c\u3058\u64cd\u4f5c\u3067\u3082\u201c\u5225\u7269\u201d\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u3002\u307e\u305a\u5883\u754c\u3092\u898b\u3048\u308b\u5316\u3057\u307e\u3059\u3002<\/div>\r\n          
findmnt -T <\u5bfe\u8c61\u30d1\u30b9>\r\nmount | egrep -i 'nfs|cifs|fuse|overlay' || true\r\ncat \/proc\/1\/cgroup | head -n 20\r\nsystemd-detect-virt || true<\/pre>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  
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\r\n      3<\/span>\r\n      
\r\n        
\u5f71\u97ff\u7bc4\u56f2\u30921\u5206\u3067\u78ba\u8a8d<\/div>\r\n        
\u201c\u3069\u3053\u306b\u5909\u66f4\u304c\u6ce2\u53ca\u3059\u308b\u304b\u201d\u3092\u5148\u306b\u56fa\u5b9a\u3059\u308b\u3068\u3001\u3084\u308a\u904e\u304e\u3092\u907f\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/div>\r\n        
findmnt -T <\u5bfe\u8c61\u30d1\u30b9>\r\ndf -hT <\u5bfe\u8c61\u30d1\u30b9>\r\nls -ld <\u5bfe\u8c61\u30d1\u30b9>\r\ngetfacl -p <\u5bfe\u8c61\u30d1\u30b9> 2>\/dev\/null | head -n 60\r\njournalctl -k --no-pager | tail -n 80<\/pre>\r\n      <\/div>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  
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\u5931\u6557\u3059\u308b\u3068\u3069\u3046\u306a\u308b\uff1f\uff08\u3084\u308a\u304c\u3061\u306a\u30df\u30b9\u3068\u8d77\u3053\u308a\u5f97\u308b\u7d50\u679c\uff09<\/div>\r\n    
\r\n      
\u30fb\u6a29\u9650\u3092\u5e83\u3052\u3059\u304e\u308b \u2192 \u60c5\u5831\u6f0f\u3048\u3044\/\u6539\u3056\u3093<\/div>\r\n      
\u30fb\u6240\u6709\u8005\u3092\u5909\u3048\u3059\u304e\u308b \u2192 \u4e8c\u6b21\u969c\u5bb3\uff08\u505c\u6b62\u30fb\u30a8\u30e9\u30fc\u9023\u9396\uff09<\/div>\r\n      
\u30fbACL\/\u4fdd\u8b77\u8a2d\u5b9a\u3092\u7121\u9020\u4f5c\u306b\u5916\u3059 \u2192 \u76e3\u67fb\u6307\u6458\/\u518d\u767a\/\u8ffd\u8de1\u4e0d\u80fd<\/div>\r\n      
\u30fb\u5171\u6709\/NFS\/\u30b3\u30f3\u30c6\u30ca\u5883\u754c\u306e\u898b\u843d\u3068\u3057 \u2192 \u5fa9\u65e7\u9577\u671f\u5316<\/div>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  
\r\n    
\u8ff7\u3063\u305f\u3089\uff1a\u7121\u6599\u3067\u76f8\u8ac7\u3067\u304d\u307e\u3059<\/div>\r\n    
\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u7121\u6599\u76f8\u8ac7\u306e\u524d\u306b\u3001\u8ff7\u3044\u30dd\u30a4\u30f3\u30c8\u3092\u77ed\u304f\u6574\u7406\u3057\u3066\u304a\u304f\u3068\u53ce\u675f\u304c\u65e9\u304f\u306a\u308a\u307e\u3059\u3002<\/div>\r\n\r\n    
\r\n      
\u30fbEFAULT\u304c\u7279\u5b9a\u30a2\u30d7\u30ea\u3060\u3051\u306a\u306e\u304b\u5207\u308a\u5206\u3051\u3089\u308c\u306a\u3044\u3002<\/div>\r\n      
\u30fbstrace\u306e\u7d50\u679c\u3092\u898b\u3066\u3082\u3001\u3069\u3053\u304c\u60aa\u3044\u304b\u5224\u65ad\u3067\u304d\u306a\u3044\u3002<\/div>\r\n      
\u30fb\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u6a29\u9650\u3092\u89e6\u308b\u524d\u306b\u76f8\u8ac7\u3059\u308b\u3068\u65e9\u304f\u53ce\u675f\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/div>\r\n      
\u30fb\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3084\u5165\u308c\u66ff\u3048\u306e\u201c\u6700\u5c0f\u624b\u201d\u304c\u9078\u3079\u306a\u3044\u3002<\/div>\r\n      
\u30fbNFS\/CIFS\/FUSE\/overlay\u306e\u5883\u754c\u3067\u3001\u5f71\u97ff\u7bc4\u56f2\u304c\u8aad\u3081\u306a\u3044\u3002<\/div>\r\n      
\u30fb\u672c\u756a\u3067\u518d\u73fe\u3055\u305b\u308b\u306e\u304c\u6016\u304f\u3001\u691c\u8a3c\u624b\u9806\u304c\u56fa\u307e\u3089\u306a\u3044\u3002<\/div>\r\n      
\u30fb\u30ed\u30b0\u306f\u3042\u308b\u306e\u306b\u3001\u3069\u308c\u3092\u6839\u62e0\u306b\u7d50\u8ad6\u3092\u51fa\u3059\u3079\u304d\u304b\u8ff7\u3063\u305f\u3089\u3002<\/div>\r\n    <\/div>\r\n\r\n    
\r\n      \u7121\u6599\u76f8\u8ac7\u30d5\u30a9\u30fc\u30e0<\/a>\r\n      \u96fb\u8a71\u3067\u76f8\u8ac7\uff080120-838-831\uff09<\/a>\r\n      \u6280\u8853\u8005\u76f4\u901a\uff08043-422-4240\uff09<\/a>\r\n    <\/div>\r\n\r\n    
\u8a73\u3057\u3044\u8aac\u660e\u3068\u5bfe\u7b56\u306f\u4ee5\u4e0b\u672c\u6587\u3078\u3002<\/div>\r\n  <\/div>\r\n<\/section>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\u3082\u304f\u3058<\/strong><\/p>