{"action":"created","issue":{"url":"https://api.github.com/repos/PX4/Firmware/issues/7083","repository_url":"https://api.github.com/repos/PX4/Firmware","labels_url":"https://api.github.com/repos/PX4/Firmware/issues/7083/labels{/name}","comments_url":"https://api.github.com/repos/PX4/Firmware/issues/7083/comments","events_url":"https://api.github.com/repos/PX4/Firmware/issues/7083/events","html_url":"https://github.com/PX4/Firmware/issues/7083","id":222783827,"number":7083,"title":"LPE/MC_POS_CTL: Altitude hold fails after LIDAR fault without recovery","user":{"login":"ecmnet","id":7580193,"avatar_url":"https://avatars0.githubusercontent.com/u/7580193?v=4","gravatar_id":"","url":"https://api.github.com/users/ecmnet","html_url":"https://github.com/ecmnet","followers_url":"https://api.github.com/users/ecmnet/followers","following_url":"https://api.github.com/users/ecmnet/following{/other_user}","gists_url":"https://api.github.com/users/ecmnet/gists{/gist_id}","starred_url":"https://api.github.com/users/ecmnet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ecmnet/subscriptions","organizations_url":"https://api.github.com/users/ecmnet/orgs","repos_url":"https://api.github.com/users/ecmnet/repos","events_url":"https://api.github.com/users/ecmnet/events{/privacy}","received_events_url":"https://api.github.com/users/ecmnet/received_events","type":"User","site_admin":false},"labels":[{"id":10884838,"url":"https://api.github.com/repos/PX4/Firmware/labels/bug","name":"bug","color":"fc2929","default":true},{"id":78699954,"url":"https://api.github.com/repos/PX4/Firmware/labels/multicopter","name":"multicopter","color":"0052cc","default":false},{"id":807897275,"url":"https://api.github.com/repos/PX4/Firmware/labels/status/STALE","name":"status/STALE","color":"ededed","default":false}],"state":"open","locked":false,"assignee":{"login":"jgoppert","id":473772,"avatar_url":"https://avatars1.githubusercontent.com/u/473772?v=4","gravatar_id":"","url":"https://api.github.com/users/jgoppert","html_url":"https://github.com/jgoppert","followers_url":"https://api.github.com/users/jgoppert/followers","following_url":"https://api.github.com/users/jgoppert/following{/other_user}","gists_url":"https://api.github.com/users/jgoppert/gists{/gist_id}","starred_url":"https://api.github.com/users/jgoppert/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jgoppert/subscriptions","organizations_url":"https://api.github.com/users/jgoppert/orgs","repos_url":"https://api.github.com/users/jgoppert/repos","events_url":"https://api.github.com/users/jgoppert/events{/privacy}","received_events_url":"https://api.github.com/users/jgoppert/received_events","type":"User","site_admin":false},"assignees":[{"login":"jgoppert","id":473772,"avatar_url":"https://avatars1.githubusercontent.com/u/473772?v=4","gravatar_id":"","url":"https://api.github.com/users/jgoppert","html_url":"https://github.com/jgoppert","followers_url":"https://api.github.com/users/jgoppert/followers","following_url":"https://api.github.com/users/jgoppert/following{/other_user}","gists_url":"https://api.github.com/users/jgoppert/gists{/gist_id}","starred_url":"https://api.github.com/users/jgoppert/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jgoppert/subscriptions","organizations_url":"https://api.github.com/users/jgoppert/orgs","repos_url":"https://api.github.com/users/jgoppert/repos","events_url":"https://api.github.com/users/jgoppert/events{/privacy}","received_events_url":"https://api.github.com/users/jgoppert/received_events","type":"User","site_admin":false}],"milestone":null,"comments":5,"created_at":"2017-04-19T15:48:44Z","updated_at":"2018-02-21T13:06:07Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"Being in ALTHOLD and trying to keep the quad at the same position manually (latest master, PixRacer, LPE)  at about 1m for several seconds, the quad shoots up in the air, without any further response to the sticks. To avoid further climb, I had to switch off by the kill switch causing the vehicle to crash, which disconnected power. Although log should have been written to log004.ulg, it has not been stored on SD - so unfortunately no log is available, but messages were written to disc:\r\n\r\n2000_01_01_00_34_17: ARMED by RC\r\n2000_01_01_00_34_17: [logger] file: /fs/microsd/log/sess018/log004.ulg\r\n2000_01_01_00_34_21: Takeoff detected\r\n2000_01_01_00_34_21: [lpe] land timeout \r\n2000_01_01_00_34_24: [lpe] lidar init: mean 21 cm stddev 10 cm\r\n2000_01_01_00_34_26: [lpe] flow init: quality 244 std 9\r\n2000_01_01_00_34_32: [lpe] flow timeout \r\n2000_01_01_00_34_33: [lpe] flow init: quality 232 std 24\r\n2000_01_01_00_34_52: [lpe] lidar fault,  beta 10.79\r\n2000_01_01_00_34_53: MANUAL KILL SWITCH ENGAGED\r\n2000_01_01_00_34_53: Failsafe enabled: no gps\r\n2000_01_01_00_34_53: Failsafe mode enabled\r\n2000_01_01_00_34_54: [lpe] flow timeout \r\n2000_01_01_00_34_54: Autopilot off, returned control to pilot\r\n\r\nAs noted earlier, I had experienced this several times now since at least 1.5.\r\nLPE fused BARO, LAND, OpticalFlow. No GPS was used.\r\n\r\nUpdate: I've now verified all hardware involved. Everything is working as expected. I also can exclude accelerator clippings. \r\n\r\nUpdate 2: Thinking of a kind of parachute mode, which is e.g. based on gyro only and by-passes all sophisticated functions like estimators, etc. This could be triggered as a 1st. level kill."},"comment":{"url":"https://api.github.com/repos/PX4/Firmware/issues/comments/367319640","html_url":"https://github.com/PX4/Firmware/issues/7083#issuecomment-367319640","issue_url":"https://api.github.com/repos/PX4/Firmware/issues/7083","id":367319640,"user":{"login":"PX4BuildBot","id":8188402,"avatar_url":"https://avatars2.githubusercontent.com/u/8188402?v=4","gravatar_id":"","url":"https://api.github.com/users/PX4BuildBot","html_url":"https://github.com/PX4BuildBot","followers_url":"https://api.github.com/users/PX4BuildBot/followers","following_url":"https://api.github.com/users/PX4BuildBot/following{/other_user}","gists_url":"https://api.github.com/users/PX4BuildBot/gists{/gist_id}","starred_url":"https://api.github.com/users/PX4BuildBot/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/PX4BuildBot/subscriptions","organizations_url":"https://api.github.com/users/PX4BuildBot/orgs","repos_url":"https://api.github.com/users/PX4BuildBot/repos","events_url":"https://api.github.com/users/PX4BuildBot/events{/privacy}","received_events_url":"https://api.github.com/users/PX4BuildBot/received_events","type":"User","site_admin":false},"created_at":"2018-02-21T13:06:07Z","updated_at":"2018-02-21T13:06:07Z","author_association":"CONTRIBUTOR","body":"Hey, this issue has been closed because the label `status/STALE` is set and there were no updates for 30 days. Feel free to reopen this issue if you deem it appropriate.\n\n(This is an automated comment from [GitMate.io](https://gitmate.io).)"}}
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