Docker commands not responding and com.docker.hyperkit taking a lot of CPU

Expected behavior

Expected behavior is to get response from some docker commands (docker ps, docker stats…) and much lower CPU usage from com.docker.hyperkit process.

Actual behavior

Almost every docker command just hangs for indefinite time. Also, one of com.docker.hyperkit processes takes a lot of CPU time (400%).


  • Output of pinata diagnose -u:

[10:30:00][markos@local:~]$ pinata diagnose -u OS X: version 10.10.5 (build: 14F1713) version v1.11.1-beta12 Running diagnostic tests: [OK] Moby booted [OK] driver.amd64-linux [OK] vmnetd [OK] osxfs [OK] db [OK] slirp [OK] menubar [OK] environment [OK] Docker [OK] VT-x Error exec: echo "00000003.0000f3a6" | nc -U /Users/markos/Library/Containers/com.docker.docker/Data/@connect > /tmp/20160525-103907/diagnostics.tar: exit 1 Docker logs are being collected into /tmp/20160525-103907.tar.gz Most specific failure is: No error was detected Your unique id is: A011C122-BD6B-4C1C-B17A-18F91003D551

  • Host is Mac OS X with version 10.10.5 (14F1713).

Steps to reproduce the behavior

I am not sure why docker process hanged, so can’t really provide you with steps for reproducing the behavior.

However, restart of Docker did resolve the issue.

Let me know where to send log files and sample of hanged com.docker.hyperkit process.