{"action":"created","issue":{"url":"https://api.github.com/repos/docker/docker/issues/21081","repository_url":"https://api.github.com/repos/docker/docker","labels_url":"https://api.github.com/repos/docker/docker/issues/21081/labels{/name}","comments_url":"https://api.github.com/repos/docker/docker/issues/21081/comments","events_url":"https://api.github.com/repos/docker/docker/issues/21081/events","html_url":"https://github.com/docker/docker/issues/21081","id":139822213,"number":21081,"title":"Kernel Panic // dirperm1 breaks the protection by the permission bits on the lower branch","user":{"login":"DavidFeller","id":2094727,"avatar_url":"https://avatars.githubusercontent.com/u/2094727?v=3","gravatar_id":"","url":"https://api.github.com/users/DavidFeller","html_url":"https://github.com/DavidFeller","followers_url":"https://api.github.com/users/DavidFeller/followers","following_url":"https://api.github.com/users/DavidFeller/following{/other_user}","gists_url":"https://api.github.com/users/DavidFeller/gists{/gist_id}","starred_url":"https://api.github.com/users/DavidFeller/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DavidFeller/subscriptions","organizations_url":"https://api.github.com/users/DavidFeller/orgs","repos_url":"https://api.github.com/users/DavidFeller/repos","events_url":"https://api.github.com/users/DavidFeller/events{/privacy}","received_events_url":"https://api.github.com/users/DavidFeller/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/docker/docker/labels/area/kernel","name":"area/kernel","color":"E3ACEF"},{"url":"https://api.github.com/repos/docker/docker/labels/area/storage/aufs","name":"area/storage/aufs","color":"fbca04"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":13,"created_at":"2016-03-10T08:38:22Z","updated_at":"2016-05-02T14:43:58Z","closed_at":null,"body":"I experienced the above mentioned kernel panic several times while running mysqldump-backups (script attached) started by cron on Debian Jessie (Kernel 3.16 / Docker Engine 1.10.1). \r\n\r\n[docker_mysql_crash_20101003.txt](https://github.com/docker/docker/files/166759/docker_mysql_crash_20101003.txt)\r\n\r\nOutput of `docker version`:\r\n\r\n```\r\nClient:\r\n Version:      1.10.1\r\n API version:  1.22\r\n Go version:   go1.5.3\r\n Git commit:   9e83765\r\n Built:        Thu Feb 11 19:09:42 2016\r\n OS/Arch:      linux/amd64\r\n\r\nServer:\r\n Version:      1.10.1\r\n API version:  1.22\r\n Go version:   go1.5.3\r\n Git commit:   9e83765\r\n Built:        Thu Feb 11 19:09:42 2016\r\n OS/Arch:      linux/amd64\r\n```\r\n\r\n\r\nOutput of `docker info`:\r\n\r\n```\r\nContainers: 65\r\n Running: 65\r\n Paused: 0\r\n Stopped: 0\r\nImages: 45\r\nServer Version: 1.10.1\r\nStorage Driver: aufs\r\n Root Dir: /var/lib/docker/aufs\r\n Backing Filesystem: xfs\r\n Dirs: 201\r\n Dirperm1 Supported: true\r\nExecution Driver: native-0.2\r\nLogging Driver: json-file\r\nPlugins: \r\n Volume: local\r\n Network: bridge null host\r\nKernel Version: 3.16.0-4-amd64\r\nOperating System: Debian GNU/Linux 8 (jessie)\r\nOSType: linux\r\nArchitecture: x86_64\r\nCPUs: 12\r\nTotal Memory: 126.1 GiB\r\nName: node01\r\nID: UBAS:SXY3:QBSF:C5P7:KMPH:FKB2:SGDV:3HRX:A4GQ:FGHL:YQLI:BK4P\r\nWARNING: No cpu cfs quota support\r\nWARNING: No cpu cfs period support\r\n```\r\n\r\nProvide additional environment details (AWS, VirtualBox, physical, etc.):\r\nphysical\r\n\r\n\r\nList the steps to reproduce the issue:\r\n```\r\n#!/bin/bash\r\nDATE=$(date \"+%Y-%m-%d\");\r\n\r\nfor container in $(docker ps --filter=\"name=mysql\" --format \"{{.Names}}\"); do\r\necho ${container};\r\ndocker run --rm --volumes-from ${container} -v /var/backup/scripts:/var/lib/mysql sameersbn/mysql mysqldump -uroot --single-transaction --default-character-set=utf8 magento | gzip > /var/backup/mysql/${container}_${DATE}.sql.gz\r\ndone\r\n```\r\nUnfortunately it's not crashing every time.\r\n\r\n\r\nDescribe the results you received:\r\nkernel panics, hardware reset needed\r\n\r\nDescribe the results you expected:\r\n\r\n\r\nProvide additional info you think is important:\r\n"},"comment":{"url":"https://api.github.com/repos/docker/docker/issues/comments/216254390","html_url":"https://github.com/docker/docker/issues/21081#issuecomment-216254390","issue_url":"https://api.github.com/repos/docker/docker/issues/21081","id":216254390,"user":{"login":"cpuguy83","id":799078,"avatar_url":"https://avatars.githubusercontent.com/u/799078?v=3","gravatar_id":"","url":"https://api.github.com/users/cpuguy83","html_url":"https://github.com/cpuguy83","followers_url":"https://api.github.com/users/cpuguy83/followers","following_url":"https://api.github.com/users/cpuguy83/following{/other_user}","gists_url":"https://api.github.com/users/cpuguy83/gists{/gist_id}","starred_url":"https://api.github.com/users/cpuguy83/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cpuguy83/subscriptions","organizations_url":"https://api.github.com/users/cpuguy83/orgs","repos_url":"https://api.github.com/users/cpuguy83/repos","events_url":"https://api.github.com/users/cpuguy83/events{/privacy}","received_events_url":"https://api.github.com/users/cpuguy83/received_events","type":"User","site_admin":false},"created_at":"2016-05-02T14:43:57Z","updated_at":"2016-05-02T14:43:57Z","body":"I'm pretty sure this message about dirperm1 is a warning from aufs, not an actual error."}}