{"action":"created","issue":{"url":"https://api.github.com/repos/Level/leveldown/issues/269","repository_url":"https://api.github.com/repos/Level/leveldown","labels_url":"https://api.github.com/repos/Level/leveldown/issues/269/labels{/name}","comments_url":"https://api.github.com/repos/Level/leveldown/issues/269/comments","events_url":"https://api.github.com/repos/Level/leveldown/issues/269/events","html_url":"https://github.com/Level/leveldown/issues/269","id":146256193,"number":269,"title":"Weird core dump on Ubuntu 15.10","user":{"login":"binarykitchen","id":177641,"avatar_url":"https://avatars.githubusercontent.com/u/177641?v=3","gravatar_id":"","url":"https://api.github.com/users/binarykitchen","html_url":"https://github.com/binarykitchen","followers_url":"https://api.github.com/users/binarykitchen/followers","following_url":"https://api.github.com/users/binarykitchen/following{/other_user}","gists_url":"https://api.github.com/users/binarykitchen/gists{/gist_id}","starred_url":"https://api.github.com/users/binarykitchen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/binarykitchen/subscriptions","organizations_url":"https://api.github.com/users/binarykitchen/orgs","repos_url":"https://api.github.com/users/binarykitchen/repos","events_url":"https://api.github.com/users/binarykitchen/events{/privacy}","received_events_url":"https://api.github.com/users/binarykitchen/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":10,"created_at":"2016-04-06T09:51:42Z","updated_at":"2016-10-30T09:10:19Z","closed_at":"2016-10-30T09:09:38Z","body":"See https://github.com/nodejs/node/issues/6036 which has all the details. The core dump tells me that it comes from leveldown. So, reporting it here.\n\nMy node.js app crashes with this output in the command line:\n\n```\n*** Error in `node': corrupted double-linked list: 0x00007f1c5800cc40 ***\n```\n\nUsing version \"1.4.4\" of leveldown.\n\nHere a long copy of the first interesting lines of that core dump:\n\n```\n# michael-heuberger @ M1 in /var/crash [21:45:28] \n$ cat _usr_bin_nodejs.1000.crash \nProblemType: Crash\nArchitecture: amd64\nCrashCounter: 1\nCurrentDesktop: Unity\nDate: Wed Apr  6 21:39:00 2016\nDistroRelease: Ubuntu 15.10\nExecutablePath: /usr/bin/nodejs\nExecutableTimestamp: 1459492516\nProcCmdline: node /home/michael-heuberger/binarykitchen/code/videomail.io/src/server.js\nProcCwd: /home/michael-heuberger/binarykitchen/code/videomail.io\nProcEnviron:\n LC_TIME=en_NZ.UTF-8\n LANGUAGE=en_NZ:en_AU:en_GB:en\n LC_MONETARY=en_NZ.UTF-8\n LC_CTYPE=en_NZ.UTF-8\n TERM=xterm\n PATH=(custom, user)\n LC_ADDRESS=en_NZ.UTF-8\n XDG_RUNTIME_DIR=<set>\n LANG=en_NZ.UTF-8\n LC_TELEPHONE=en_NZ.UTF-8\n SHELL=/bin/zsh\n LC_NAME=en_NZ.UTF-8\n LC_MEASUREMENT=en_NZ.UTF-8\n LC_IDENTIFICATION=en_NZ.UTF-8\n LC_NUMERIC=en_NZ.UTF-8\n LC_PAPER=en_NZ.UTF-8\nProcMaps:\n 00400000-0178f000 r-xp 00000000 08:12 9843169                            /usr/bin/nodejs\n 0198e000-0198f000 r--p 0138e000 08:12 9843169                            /usr/bin/nodejs\n 0198f000-019a7000 rw-p 0138f000 08:12 9843169                            /usr/bin/nodejs\n 019a7000-019b8000 rw-p 00000000 00:00 0 \n 0379a000-041e9000 rw-p 00000000 00:00 0                                  [heap]\n 1042200000-1042300000 rw-p 00000000 00:00 0 \n 12d64000000-12d64100000 rw-p 00000000 00:00 0 \n 40b69800000-40b69814000 rw-p 00000000 00:00 0 \n a3fe3000000-a3fe3100000 rw-p 00000000 00:00 0 \n b331cd00000-b331ce00000 rw-p 00000000 00:00 0 \n cd143b00000-cd143c00000 rw-p 00000000 00:00 0 \n 11111e800000-11111e900000 rw-p 00000000 00:00 0 \n 1565c3d00000-1565c3e00000 rw-p 00000000 00:00 0 \n 1949d8d00000-1949d8e00000 rw-p 00000000 00:00 0 \n 1b2fdcc00000-1b2fdcd00000 rw-p 00000000 00:00 0 \n 1b6c82968000-1b6c829a8000 rw-p 00000000 00:00 0 \n 1b6c829a8000-1b6c82b68000 ---p 00000000 00:00 0 \n 1c2242400000-1c22424dd000 rw-p 00000000 00:00 0 \n 1ed52c248000-1ed52c280000 ---p 00000000 00:00 0 \n 1ed52c280000-1ed52c2a0000 rw-p 00000000 00:00 0 \n 1ed52c2a0000-1ed52c2a8000 ---p 00000000 00:00 0 \n 1f5f3e1a7000-1f5f3e5a7000 rw-p 00000000 00:00 0 \n 1f9fe5800000-1f9fe5900000 rw-p 00000000 00:00 0 \n 1ff924200000-1ff924300000 rw-p 00000000 00:00 0 \n 2008cf000000-2008cf100000 rw-p 00000000 00:00 0 \n 201889800000-201889900000 rw-p 00000000 00:00 0 \n 203524f00000-203525000000 rw-p 00000000 00:00 0 \n 20822aa00000-20822ab00000 rw-p 00000000 00:00 0 \n 2289e6d00000-2289e6e00000 rw-p 00000000 00:00 0 \n 2306c5d00000-2306c5e00000 rw-p 00000000 00:00 0 \n 285504f00000-285505000000 rw-p 00000000 00:00 0 \n 2b356aa00000-2b356ab00000 rw-p 00000000 00:00 0 \n 2b79fcc00000-2b79fcd05000 rw-p 00000000 00:00 0 \n 2d20a2200000-2d20a2300000 rw-p 00000000 00:00 0 \n 2d9223500000-2d9223600000 rw-p 00000000 00:00 0 \n 2e279ff00000-2e27a00ce000 rw-p 00000000 00:00 0 \n 2f86d8b00000-2f86d8cce000 rw-p 00000000 00:00 0 \n 2f87e7800000-2f87e7900000 rw-p 00000000 00:00 0 \n 301394700000-301394800000 rw-p 00000000 00:00 0 \n 313186900000-313186a00000 rw-p 00000000 00:00 0 \n 315621c03000-315621e00000 ---p 00000000 00:00 0 \n 315621e00000-315621e05000 rw-p 00000000 00:00 0 \n 315621e05000-315621e06000 ---p 00000000 00:00 0 \n 315621e06000-315621e07000 rwxp 00000000 00:00 0 \n 315621e07000-315621f00000 ---p 00000000 00:00 0 \n 315621f00000-315621f05000 rw-p 00000000 00:00 0 \n 315621f05000-315621f06000 ---p 00000000 00:00 0 \n 315621f06000-315621f07000 rwxp 00000000 00:00 0 \n 315621f07000-315622000000 ---p 00000000 00:00 0 \n 315622000000-315622005000 rw-p 00000000 00:00 0 \n 315622005000-315622006000 ---p 00000000 00:00 0 \n 315622006000-315622007000 rwxp 00000000 00:00 0 \n 315622007000-315622100000 ---p 00000000 00:00 0 \n 315622100000-315622105000 rw-p 00000000 00:00 0 \n 315622105000-315622106000 ---p 00000000 00:00 0 \n 315622106000-31562214b000 rwxp 00000000 00:00 0 \n 31562214b000-315622200000 ---p 00000000 00:00 0 \n 315622200000-315622205000 rw-p 00000000 00:00 0 \n 315622205000-315622206000 ---p 00000000 00:00 0 \n 315622206000-3156222ff000 rwxp 00000000 00:00 0 \n 3156222ff000-315622300000 ---p 00000000 00:00 0 \n 315622300000-315622305000 rw-p 00000000 00:00 0 \n 315622305000-315622306000 ---p 00000000 00:00 0 \n 315622306000-3156223ff000 rwxp 00000000 00:00 0 \n 3156223ff000-315622400000 ---p 00000000 00:00 0 \n 315622400000-315622405000 rw-p 00000000 00:00 0 \n 315622405000-315622406000 ---p 00000000 00:00 0 \n 315622406000-3156224ff000 rwxp 00000000 00:00 0 \n 3156224ff000-315622500000 ---p 00000000 00:00 0 \n 315622500000-315622505000 rw-p 00000000 00:00 0 \n 315622505000-315622506000 ---p 00000000 00:00 0 \n 315622506000-3156225ff000 rwxp 00000000 00:00 0 \n 3156225ff000-315622600000 ---p 00000000 00:00 0 \n 315622600000-315622605000 rw-p 00000000 00:00 0 \n 315622605000-315622606000 ---p 00000000 00:00 0 \n 315622606000-3156226ff000 rwxp 00000000 00:00 0 \n 3156226ff000-315622700000 ---p 00000000 00:00 0 \n 315622700000-315622705000 rw-p 00000000 00:00 0 \n 315622705000-315622706000 ---p 00000000 00:00 0 \n 315622706000-3156227ff000 rwxp 00000000 00:00 0 \n 3156227ff000-315622800000 ---p 00000000 00:00 0 \n 315622800000-315622805000 rw-p 00000000 00:00 0 \n 315622805000-315622806000 ---p 00000000 00:00 0 \n 315622806000-3156228ff000 rwxp 00000000 00:00 0 \n 3156228ff000-315622900000 ---p 00000000 00:00 0 \n 315622900000-315622905000 rw-p 00000000 00:00 0 \n 315622905000-315622906000 ---p 00000000 00:00 0 \n 315622906000-3156229ff000 rwxp 00000000 00:00 0 \n 3156229ff000-315641c03000 ---p 00000000 00:00 0 \n 319bed100000-319bed200000 rw-p 00000000 00:00 0 \n 31a28e200000-31a28e300000 rw-p 00000000 00:00 0 \n 322c99000000-322c99100000 rw-p 00000000 00:00 0 \n 327647600000-327647700000 rw-p 00000000 00:00 0 \n 35be13f00000-35be14000000 rw-p 00000000 00:00 0 \n 362e73800000-362e73900000 rw-p 00000000 00:00 0 \n 367f32000000-367f33000000 rw-p 00000000 00:00 0 \n 367f33000000-367f34000000 rw-p 00000000 00:00 0 \n 39f5a7a00000-39f5a7b00000 rw-p 00000000 00:00 0 \n 3aba029f8000-3aba029f9000 r-xp 00000000 00:00 0 \n 3bc1ed100000-3bc1ed200000 rw-p 00000000 00:00 0 \n 3e3aed400000-3e3aed500000 rw-p 00000000 00:00 0 \n 3f27ba900000-3f27baa00000 rw-p 00000000 00:00 0 \n 3f726e900000-3f726ea00000 rw-p 00000000 00:00 0 \n 7f1c4c000000-7f1c4c029000 rw-p 00000000 00:00 0 \n 7f1c4c029000-7f1c50000000 ---p 00000000 00:00 0 \n 7f1c54000000-7f1c54029000 rw-p 00000000 00:00 0 \n 7f1c54029000-7f1c58000000 ---p 00000000 00:00 0 \n 7f1c58000000-7f1c58030000 rw-p 00000000 00:00 0 \n 7f1c58030000-7f1c5c000000 ---p 00000000 00:00 0 \n 7f1c5c000000-7f1c5c021000 rw-p 00000000 00:00 0 \n 7f1c5c021000-7f1c60000000 ---p 00000000 00:00 0 \n 7f1c61408000-7f1c61409000 ---p 00000000 00:00 0 \n 7f1c61409000-7f1c61c09000 rw-p 00000000 00:00 0                          [stack:10102]\n 7f1c61c09000-7f1c61c0a000 ---p 00000000 00:00 0 \n 7f1c61c0a000-7f1c6240a000 rw-p 00000000 00:00 0                          [stack:10101]\n 7f1c6240a000-7f1c6240b000 ---p 00000000 00:00 0 \n 7f1c6240b000-7f1c62c0b000 rw-p 00000000 00:00 0                          [stack:10100]\n 7f1c62c0b000-7f1c62c0c000 ---p 00000000 00:00 0 \n 7f1c62c0c000-7f1c6340c000 rw-p 00000000 00:00 0                          [stack:10099]\n 7f1c6340c000-7f1c6347f000 r-xp 00000000 08:21 18219566                   /home/michael-heuberger/binarykitchen/code/videomail.io/node_modules/leveldown/build/Release/leveldown.node\n 7f1c6347f000-7f1c6367f000 ---p 00073000 08:21 18219566                   /home/michael-heuberger/binarykitchen/code/videomail.io/node_modules/leveldown/build/Release/leveldown.node\n 7f1c6367f000-7f1c63682000 rw-p 00073000 08:21 18219566                   /home/michael-heuberger/binarykitchen/code/videomail.io/node_modules/leveldown/build/Release/leveldown.node\n 7f1c63682000-7f1c63687000 r-xp 00000000 08:12 9833502                    /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0\n 7f1c63687000-7f1c63886000 ---p 00005000 08:12 9833502                    /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0\n 7f1c63886000-7f1c63887000 r--p 00004000 08:12 9833502                    /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0\n 7f1c63887000-7f1c63888000 rw-p 00005000 08:12 9833502                    /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0\n 7f1c63888000-7f1c6388a000 r-xp 00000000 08:12 9838505                    /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0\n 7f1c6388a000-7f1c63a8a000 ---p 00002000 08:12 9838505                    /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0\n 7f1c63a8a000-7f1c63a8b000 r--p 00002000 08:12 9838505                    /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0\n 7f1c63a8b000-7f1c63a8c000 rw-p 00003000 08:12 9838505                    /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0\n 7f1c63a8c000-7f1c63a95000 r-xp 00000000 08:12 9833636                    /usr/lib/x86_64-linux-gnu/libXrender.so.1.3.0\n 7f1c63a95000-7f1c63c94000 ---p 00009000 08:12 9833636                    /usr/lib/x86_64-linux-gnu/libXrender.so.1.3.0\n 7f1c63c94000-7f1c63c95000 r--p 00008000 08:12 9833636                    /usr/lib/x86_64-linux-gnu/libXrender.so.1.3.0\n 7f1c63c95000-7f1c63c96000 rw-p 00009000 08:12 9833636                    /usr/lib/x86_64-linux-gnu/libXrender.so.1.3.0\n 7f1c63c96000-7f1c63c9e000 r-xp 00000000 08:12 9833640                    /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0\n 7f1c63c9e000-7f1c63e9e000 ---p 00008000 08:12 9833640                    /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0\n 7f1c63e9e000-7f1c63e9f000 r--p 00008000 08:12 9833640                    /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0\n 7f1c63e9f000-7f1c63ea0000 rw-p 00009000 08:12 9833640                    /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0\n 7f1c63ea0000-7f1c63ea2000 r-xp 00000000 08:12 9833644                    /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0\n 7f1c63ea2000-7f1c640a2000 ---p 00002000 08:12 9833644                    /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0\n 7f1c640a2000-7f1c640a3000 r--p 00002000 08:12 9833644                    /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0\n... goes down to 20MB further\n```\n\nAny clues what this could be?\n"},"comment":{"url":"https://api.github.com/repos/Level/leveldown/issues/comments/257140148","html_url":"https://github.com/Level/leveldown/issues/269#issuecomment-257140148","issue_url":"https://api.github.com/repos/Level/leveldown/issues/269","id":257140148,"user":{"login":"ralphtheninja","id":308049,"avatar_url":"https://avatars.githubusercontent.com/u/308049?v=3","gravatar_id":"","url":"https://api.github.com/users/ralphtheninja","html_url":"https://github.com/ralphtheninja","followers_url":"https://api.github.com/users/ralphtheninja/followers","following_url":"https://api.github.com/users/ralphtheninja/following{/other_user}","gists_url":"https://api.github.com/users/ralphtheninja/gists{/gist_id}","starred_url":"https://api.github.com/users/ralphtheninja/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ralphtheninja/subscriptions","organizations_url":"https://api.github.com/users/ralphtheninja/orgs","repos_url":"https://api.github.com/users/ralphtheninja/repos","events_url":"https://api.github.com/users/ralphtheninja/events{/privacy}","received_events_url":"https://api.github.com/users/ralphtheninja/received_events","type":"User","site_admin":false},"created_at":"2016-10-30T09:10:19Z","updated_at":"2016-10-30T09:10:19Z","body":"Closing this. Please re-open if needed."}}
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