{"action":"created","issue":{"url":"https://api.github.com/repos/betaflight/betaflight/issues/2631","repository_url":"https://api.github.com/repos/betaflight/betaflight","labels_url":"https://api.github.com/repos/betaflight/betaflight/issues/2631/labels{/name}","comments_url":"https://api.github.com/repos/betaflight/betaflight/issues/2631/comments","events_url":"https://api.github.com/repos/betaflight/betaflight/issues/2631/events","html_url":"https://github.com/betaflight/betaflight/issues/2631","id":213586465,"number":2631,"title":"Quad randomly starts shaking when logging to sd","user":{"login":"bexamous","id":2084920,"avatar_url":"https://avatars3.githubusercontent.com/u/2084920?v=3","gravatar_id":"","url":"https://api.github.com/users/bexamous","html_url":"https://github.com/bexamous","followers_url":"https://api.github.com/users/bexamous/followers","following_url":"https://api.github.com/users/bexamous/following{/other_user}","gists_url":"https://api.github.com/users/bexamous/gists{/gist_id}","starred_url":"https://api.github.com/users/bexamous/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bexamous/subscriptions","organizations_url":"https://api.github.com/users/bexamous/orgs","repos_url":"https://api.github.com/users/bexamous/repos","events_url":"https://api.github.com/users/bexamous/events{/privacy}","received_events_url":"https://api.github.com/users/bexamous/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2017-03-12T06:41:19Z","updated_at":"2017-03-12T16:13:13Z","closed_at":null,"body":"So issue is when logging to sd card seemingly randomly quad beings to shake, seems like just on yaw axis to me but not positive.  It seems to continues to shake until you cut and re-apply throttle and when it stops quad flies just fine.\r\n\r\nBlackbox log seems to end when shaking begins, but seeing file sizes it might just be getting corrupted and logging really is continuing.  Blackbox Explorer just shows log up til shaking, cmd line tool segv trying to decode.\r\n\r\nThe shaking is not desyncs, you still have control of the quad, its just shaking.\r\n\r\nI've had issue happen a bunch, I've never had it happen twice on same pack though.  Not sure if that is luck, because blackbox is ending and that is what causes issue, or some other reason.\r\n\r\nAt least 5 people have this issue, see below.  Everyone is using Omnibus F4 Pro v2, OMNIBUSF4SD target.  I was using 3.1.0 but others have had issue with 3.1.5 and 3.1.6.\r\n\r\nHere is a LOS video of issue and two blackbox logs:\r\nhttps://www.rcgroups.com/forums/showpost.php?p=36929276&postcount=45406\r\n\r\nHere is a FPV video and blackbox log:\r\nhttps://www.rcgroups.com/forums/showpost.php?p=37030008&postcount=46108\r\n\r\nHere is another FPV video:\r\nhttps://www.rcgroups.com/forums/showpost.php?p=37032891&postcount=46137\r\n\r\nHere is just two other people saying they have same issue:\r\nhttps://www.rcgroups.com/forums/showpost.php?p=37039548&postcount=46176\r\n\r\nhttps://www.rcgroups.com/forums/showpost.php?p=37050613&postcount=800\r\n\r\nI've had issue reproduce using 8k as well as 2k.. I've not tried lower.  I can log on Omnibus F3 Pro at 8k without issue.  One person reported lowering logging rate and reformatting sd card fixed issue, but they didn't say how low that was.  If F3 board can log at 8k doesn't seem like F4 should be limiting to something under 2k."},"comment":{"url":"https://api.github.com/repos/betaflight/betaflight/issues/comments/285954964","html_url":"https://github.com/betaflight/betaflight/issues/2631#issuecomment-285954964","issue_url":"https://api.github.com/repos/betaflight/betaflight/issues/2631","id":285954964,"user":{"login":"sa-mendez","id":26190322,"avatar_url":"https://avatars0.githubusercontent.com/u/26190322?v=3","gravatar_id":"","url":"https://api.github.com/users/sa-mendez","html_url":"https://github.com/sa-mendez","followers_url":"https://api.github.com/users/sa-mendez/followers","following_url":"https://api.github.com/users/sa-mendez/following{/other_user}","gists_url":"https://api.github.com/users/sa-mendez/gists{/gist_id}","starred_url":"https://api.github.com/users/sa-mendez/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sa-mendez/subscriptions","organizations_url":"https://api.github.com/users/sa-mendez/orgs","repos_url":"https://api.github.com/users/sa-mendez/repos","events_url":"https://api.github.com/users/sa-mendez/events{/privacy}","received_events_url":"https://api.github.com/users/sa-mendez/received_events","type":"User","site_admin":false},"created_at":"2017-03-12T16:13:13Z","updated_at":"2017-03-12T16:13:13Z","body":"To follow up on my last post.  All the observations that I witnessed in the logs occur before the out of control oscillations occur.  From the moment the quadcopter starts behaving erratically, the logs completely cut off, and no more logging occurs until I disarm/rearm. "}}
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