tail -f log/puma.stderr.log していたらpumaのlogで下記落ちていた. (解決策) It seems like a bug in MRI 2.4. Follow these threads here and here Thanks! Updating to 2.4.1 solved the problem in my case. – dusan Nov 16 '17 at 13:59https://stacko…

https://qiita.com/__hage/items/467ddef0172f7f92b4ea% xattr -cr