{"id":118,"date":"2019-07-11T18:47:23","date_gmt":"2019-07-11T09:47:23","guid":{"rendered":"http:\/\/www.space4u.co.kr\/wp\/?p=118"},"modified":"2019-07-11T18:47:24","modified_gmt":"2019-07-11T09:47:24","slug":"segmentation-fault-%eb%9c%b0%eb%95%8c-%eb%8f%8c%eb%a0%a4%eb%b3%b4%ec%9e%90","status":"publish","type":"post","link":"http:\/\/www.space4u.co.kr\/wp\/?p=118","title":{"rendered":"Segmentation fault \ub730\ub54c~ \ub3cc\ub824\ubcf4\uc790~"},"content":{"rendered":"\n<p>\n\n\uba54\ubaa8\ub9ac \uae68\uba39\uc744 \ub54c Segmentation fault \uac00 \uc791\ub82c\ud558\uc9c0\uc694&#8230;<\/p>\n\n\n\n<p>\ubc30\uc5f4\uc758 \ucca8\uc790\ub97c \ubc97\uc5b4\ub098\uc11c \uc811\uadfc\ud558\uac70\ub098 \ud3ec\uc778\ud130\ub97c \ud560\ub2f9\ub41c \uba54\ubaa8\ub9ac\ub97c \ub118\uc5b4\uc11c \uc811\uadfc\ud560\ub54c \ub098\uc9c0\uc694.<\/p>\n\n\n\n<p>free\uc5d0\uc11c \uc8fd\ub294 \uacbd\uc6b0\uac00 \ub9ce\uace0\uc694.<\/p>\n\n\n\n<p>\uc8fc\uc758\ud560\uc810\uc740 malloc\uc73c\ub85c strlen\ub9cc\ud07c \uba54\ubaa8\ub9ac\ub97c \uc7a1\uace0 sprintf\ub97c \ud558\uba74 \uc808\ub300!!!!!! \uc548\ub429\ub2c8\ub2e4.&nbsp;<br>sprintf\ub294 \ub4a4\uc5d0 \ubb34\uc870\uac74 NULL\uc744 \ud558\ub098 \ub354 \ub123\uc5b4\uc8fc\uae30 \ub54c\ubb38\uc5d0 strlen\ubcf4\ub2e4 1 \ud06c\uac8c \uc7a1\uc544\uc918\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ub610..&nbsp;<\/p>\n\n\n\n<p>*** glibc detected *** free():invalid point<\/p>\n\n\n\n<p>\ub77c\ub294 \uba54\uc2dc\uc9c0\ub97c \ud22d~~~ \ub358\uc9c0\uace0 \uba87\ud398\uc774\uc9c0\ub098 \ub418\ub294 \ub370\uc774\ud130\uac00 \uc8fc\ub8e8\ub8e8\ub8e8\ub8e8\ub8e9~ \uc62c\ub77c\uac00\ub294 \uacbd\uc6b0\uac00 \uc788\uc2b5\ub2c8\ub2e4.<br>\uc694\ub118\ub3c4 \ube44\uc815\uc0c1\uc801\uc778 \uba54\ubaa8\ub9ac \ud504\ub9ac\uac00 \uccb4\ud06c\ub418\uba74 \ub728\ub294\uac74\ub370\uc694&#8230;<\/p>\n\n\n\n<p>Linux libc 5.4.23\uc774\ud6c4\uc640 GNU libc 2.x \ubc84\uc804\uc740 \ud658\uacbd \ubcc0\uc218\ub85c malloc\uc744 \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br>\uc258\uc5d0\uc11c export MALLOC_CHECK_=3 \ud574\uc8fc\uc2dc\uba74 \uc5d0\ub7ec \uba54\uc2dc\uc9c0\ub97c \ucd9c\ub825\ud558\uace0 \uc885\ub8cc\ud574 \uc90d\ub2c8\ub2e4. \uc124\uc815 \uac12\uc740 0~3<\/p>\n\n\n\n<p>0 : \uc544\ubb34\uac83\ub3c4 \ud558\uc9c0 \uc54a\uace0 \uadf8\ub0e5 \ud504\ub85c\uadf8\ub7a8 \ub3d9\uc791&#8230;. \ud504\ub9ac\ud558\ub294 \uc21c\uac04\uc5d4 \uc8fd\uaca0\uc8e0??? \uc5b8\uc820\uac00 \ub9db\ud305\uc774 \uac00\uaca0\uc8e0&#8230;<br>1 : \uc5d0\ub7ec \uba54\uc2dc\uc9c0 \ucd9c\ub825<br>2 : \uc544\ubb34\ub7f0 \uba54\uc2dc\uc9c0 \uc5c6\uc774 \ud504\ub85c\uadf8\ub7a8 \uc885\ub8cc<br>3 : \uc5d0\ub7ec \uba54\uc2dc\uc9c0 \ucd9c\ub825\ud558\uace0 \ud504\ub85c\uadf8\ub7a8 \uc885\ub8cc<\/p>\n\n\n\n<p>\uae0d\uac8c 2, 3\uc744 \ud574\uc11c \uba54\ubaa8\ub9ac \uc190\uc0c1\uc774 \uac10\uc9c0 \ub42c\uc744\ub54c \uc11c \ubc84\ub9ac\ub294\uac8c \ub0ab\uaca0\uc8e0? \uba54\uc2dc\uc9c0\uae4c\uc9c0 \ucd9c\ub825\ud574 \uc900\ub2e4\uba74(3) \ucd5c\uace0\uaca0\uad6c\uc694&#8230;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\uc27d\uac8c \ubb38\uc81c\uc758 \ucf54\ub4dc\ub97c \ucc3e\ub294 \ubc29\ubc95\uc740 valgrind \ub77c\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc4f0\uba74\ub429\ub2c8\ub2e4.<br>\uc815\ub9d0 \ucc3e\uc544\ub0b4\ub294 \uc21c\uac04 \ucabd\ud314\ub824\uc11c \uc5bc\uad74\uc774 \ubc1c\uadf8\ub808\uc9c4\ub2e4\ub2a5&#8230; \u314b\u314b\u314b<\/p>\n\n\n\n<p>valgrind \uc790\uae30\uac00\ub9cc\ub4e0\ud504\ub85c\uadf8\ub7a8<\/p>\n\n\n\n<p>\uc694\ub807\uac8c \uc2e4\ud589\ud558\uba74 \uc5b4\ub514\ucbe4\uc5d0\uc11c \uba54\ubaa8\ub9ac\ub97c \uae68\uba39\ub294\uc9c0 \ub300\ucda9 \uc54c\ub824\uc90d\ub2c8\ub2e4&#8230;. \uc601\uc5b4\ub8e8&#8230; \u3161\u3161;<\/p>\n\n\n\n<p><s>apt-get instll valgrind<\/s>\u00a0apt-get install valgrind \ub97c \ud558\uba74 \uc6b0\ubd84\ud22c\uc5d0\uc120 \uac4d \uc124\uce58\ud574\uc8fc\uaca0\uc8e0???? \uc544\ub2d8 \ub9d0\uad6c&#8230; ^^ <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uba54\ubaa8\ub9ac \uae68\uba39\uc744 \ub54c Segmentation fault \uac00 \uc791\ub82c\ud558\uc9c0\uc694&#8230; \ubc30\uc5f4\uc758 \ucca8\uc790\ub97c \ubc97\uc5b4\ub098\uc11c \uc811\uadfc\ud558\uac70\ub098 \ud3ec\uc778\ud130\ub97c \ud560\ub2f9\ub41c \uba54\ubaa8\ub9ac\ub97c \ub118\uc5b4\uc11c \uc811\uadfc\ud560\ub54c \ub098\uc9c0\uc694. free\uc5d0\uc11c \uc8fd\ub294 \uacbd\uc6b0\uac00 \ub9ce\uace0\uc694. \uc8fc\uc758\ud560\uc810\uc740 malloc\uc73c\ub85c strlen\ub9cc\ud07c \uba54\ubaa8\ub9ac\ub97c&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"http:\/\/www.space4u.co.kr\/wp\/?p=118\">\ub354 \uc77d\uae30<span class=\"screen-reader-text\">Segmentation fault \ub730\ub54c~ \ub3cc\ub824\ubcf4\uc790~<\/span> <i class=\"fas fa-angle-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[92,93,90,94],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts\/118"}],"collection":[{"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=118"}],"version-history":[{"count":1,"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions"}],"predecessor-version":[{"id":119,"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions\/119"}],"wp:attachment":[{"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.space4u.co.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}