Yep, it's not fixed: ~ λ docker run --rm ubuntu:14.04 bash -c 'ulimit -n 500000 && apt-get install strace && strace -c -f apt-get update' Reading package lists... Building dependency tree... Reading state information... The following NEW packages will be installed: strace 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 113 kB of archives. After this operation, 504 kB of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu/ trusty/main strace amd64 4.8-1ubuntu5 [113 kB] debconf: unable to initialize frontend: Dialog debconf: (TERM is not set, so the dialog frontend is not usable.) debconf: falling back to frontend: Readline debconf: unable to initialize frontend: Readline debconf: (This frontend requires a controlling tty.) debconf: falling back to frontend: Teletype dpkg-preconfigure: unable to re-open stdin: Fetched 113 kB in 0s (179 kB/s) Selecting previously unselected package strace. (Reading database ... 11527 files and directories currently installed.) Preparing to unpack .../strace_4.8-1ubuntu5_amd64.deb ... Unpacking strace (4.8-1ubuntu5) ... Setting up strace (4.8-1ubuntu5) ... Process 47 attached Process 48 attached Process 49 attached Ign http://archive.ubuntu.com trusty InRelease Ign http://archive.ubuntu.com trusty-updates InRelease Ign http://archive.ubuntu.com trusty-security InRelease Hit http://archive.ubuntu.com trusty Release.gpg Get:1 http://archive.ubuntu.com trusty-updates Release.gpg [933 B] Get:2 http://archive.ubuntu.com trusty-security Release.gpg [933 B] Process 50 attached Process 51 attached Hit http://archive.ubuntu.com trusty Release Get:3 http://archive.ubuntu.com trusty-updates Release [63.5 kB] Process 52 attached Process 53 attached Get:4 http://archive.ubuntu.com trusty-security Release [63.5 kB] Process 54 attached Get:5 http://archive.ubuntu.com trusty/main Sources [1335 kB] Process 55 attached Process 56 attached ^CGet:6 http://archive.ubuntu.com trusty/restricted Sources [5335 B] Get:7 http://archive.ubuntu.com trusty/universe Sources [7926 kB] Get:8 http://archive.ubuntu.com trusty/main amd64 Packages [1743 kB] Get:9 http://archive.ubuntu.com trusty/restricted amd64 Packages [16.0 kB] Get:10 http://archive.ubuntu.com trusty/universe amd64 Packages [7589 kB] Get:11 http://archive.ubuntu.com trusty-updates/main Sources [248 kB] Get:12 http://archive.ubuntu.com trusty-updates/restricted Sources [2310 B] Get:13 http://archive.ubuntu.com trusty-updates/universe Sources [141 kB] Get:14 http://archive.ubuntu.com trusty-updates/main amd64 Packages [636 kB] Get:15 http://archive.ubuntu.com trusty-updates/restricted amd64 Packages [15.1 kB] Get:16 http://archive.ubuntu.com trusty-updates/universe amd64 Packages [356 kB] Get:17 http://archive.ubuntu.com trusty-security/main Sources [97.7 kB] Get:18 http://archive.ubuntu.com trusty-security/restricted Sources [1874 B] Get:19 http://archive.ubuntu.com trusty-security/universe Sources [23.3 kB] Get:20 http://archive.ubuntu.com trusty-security/main amd64 Packages [329 kB] Get:21 http://archive.ubuntu.com trusty-security/restricted amd64 Packages [14.8 kB] Get:22 http://archive.ubuntu.com trusty-security/universe amd64 Packages [128 kB] FATA[0368] Error response from daemon: Cannot destroy container 327825463e914c72c59f01a5aa1ab25b8ab13eeae55ac961159a729e0f4f3599: Failed to set container state to RemovalInProgress: Status is already RemovalInProgress ~ λ docker run --rm ubuntu:14.04 bash -c 'ulimit -n 500 && apt-get install strace && time strace -c -f apt-get update' Reading package lists... Building dependency tree... Reading state information... The following NEW packages will be installed: strace 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 113 kB of archives. After this operation, 504 kB of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu/ trusty/main strace amd64 4.8-1ubuntu5 [113 kB] debconf: unable to initialize frontend: Dialog debconf: (TERM is not set, so the dialog frontend is not usable.) debconf: falling back to frontend: Readline debconf: unable to initialize frontend: Readline debconf: (This frontend requires a controlling tty.) debconf: falling back to frontend: Teletype dpkg-preconfigure: unable to re-open stdin: Fetched 113 kB in 0s (170 kB/s) Selecting previously unselected package strace. (Reading database ... 11527 files and directories currently installed.) Preparing to unpack .../strace_4.8-1ubuntu5_amd64.deb ... Unpacking strace (4.8-1ubuntu5) ... Setting up strace (4.8-1ubuntu5) ... Process 48 attached Process 49 attached Process 50 attached Ign http://archive.ubuntu.com trusty InRelease Ign http://archive.ubuntu.com trusty-updates InRelease Ign http://archive.ubuntu.com trusty-security InRelease Hit http://archive.ubuntu.com trusty Release.gpg Get:1 http://archive.ubuntu.com trusty-updates Release.gpg [933 B] Get:2 http://archive.ubuntu.com trusty-security Release.gpg [933 B] Process 51 attached Process 52 attached Hit http://archive.ubuntu.com trusty Release Process 53 attached Get:3 http://archive.ubuntu.com trusty-updates Release [63.5 kB] Process 54 attached Get:4 http://archive.ubuntu.com trusty-security Release [63.5 kB] Process 55 attached Get:5 http://archive.ubuntu.com trusty/main Sources [1335 kB] Process 56 attached Process 57 attached Get:6 http://archive.ubuntu.com trusty/restricted Sources [5335 B] Get:7 http://archive.ubuntu.com trusty/universe Sources [7926 kB] Get:8 http://archive.ubuntu.com trusty/main amd64 Packages [1743 kB] Get:9 http://archive.ubuntu.com trusty/restricted amd64 Packages [16.0 kB] Get:10 http://archive.ubuntu.com trusty/universe amd64 Packages [7589 kB] Get:11 http://archive.ubuntu.com trusty-updates/main Sources [248 kB] Get:12 http://archive.ubuntu.com trusty-updates/restricted Sources [2310 B] Get:13 http://archive.ubuntu.com trusty-updates/universe Sources [141 kB] Get:14 http://archive.ubuntu.com trusty-updates/main amd64 Packages [636 kB] Get:15 http://archive.ubuntu.com trusty-updates/restricted amd64 Packages [15.1 kB] Get:16 http://archive.ubuntu.com trusty-updates/universe amd64 Packages [356 kB] Get:17 http://archive.ubuntu.com trusty-security/main Sources [97.7 kB] Get:18 http://archive.ubuntu.com trusty-security/restricted Sources [1874 B] Get:19 http://archive.ubuntu.com trusty-security/universe Sources [23.3 kB] Get:20 http://archive.ubuntu.com trusty-security/main amd64 Packages [329 kB] Get:21 http://archive.ubuntu.com trusty-security/restricted amd64 Packages [14.8 kB] Get:22 http://archive.ubuntu.com trusty-security/universe amd64 Packages [128 kB] Process 58 attached Process 59 attached Process 60 attached Fetched 20.7 MB in 20s (1007 kB/s) Reading package lists...Process 61 attached Process 62 attached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 47.67 0.022893 1526 15 wait4 25.60 0.012296 3 4367 select 7.85 0.003770 10 395 2 close 5.80 0.002784 44 63 munmap 5.70 0.002737 1 2982 30 write 2.38 0.001143 0 15242 3221 read 1.66 0.000799 0 4980 getrlimit 1.00 0.000478 1 419 76 open 0.92 0.000443 30 15 execve 0.80 0.000386 0 5251 4908 fcntl 0.19 0.000092 1 81 47 unlink 0.12 0.000056 0 460 202 stat 0.11 0.000051 0 395 mmap 0.10 0.000050 0 119 rt_sigaction 0.05 0.000025 25 1 getuid 0.05 0.000024 0 275 fstat 0.00 0.000000 0 3 poll 0.00 0.000000 0 254 9 lseek 0.00 0.000000 0 223 mprotect 0.00 0.000000 0 55 brk 0.00 0.000000 0 3 rt_sigprocmask 0.00 0.000000 0 1 rt_sigreturn 0.00 0.000000 0 8 6 ioctl 0.00 0.000000 0 134 131 access 0.00 0.000000 0 18 pipe 0.00 0.000000 0 30 dup2 0.00 0.000000 0 4 getpid 0.00 0.000000 0 9 socket 0.00 0.000000 0 24 7 connect 0.00 0.000000 0 1 sendto 0.00 0.000000 0 2 recvfrom 0.00 0.000000 0 3 recvmsg 0.00 0.000000 0 1 bind 0.00 0.000000 0 9 getsockname 0.00 0.000000 0 1 getsockopt 0.00 0.000000 0 15 clone 0.00 0.000000 0 6 kill 0.00 0.000000 0 22 ftruncate 0.00 0.000000 0 30 getdents 0.00 0.000000 0 3 getcwd 0.00 0.000000 0 5 chdir 0.00 0.000000 0 44 rename 0.00 0.000000 0 24 chmod 0.00 0.000000 0 18 fchmod 0.00 0.000000 0 295 umask 0.00 0.000000 0 1 geteuid 0.00 0.000000 0 1 getppid 0.00 0.000000 0 6 6 statfs 0.00 0.000000 0 15 arch_prctl 0.00 0.000000 0 40 utimes 0.00 0.000000 0 15 openat 0.00 0.000000 0 3 3 newfstatat 0.00 0.000000 0 3 3 unlinkat 0.00 0.000000 0 1 sendmmsg ------ ----------- ----------- --------- --------- ---------------- 100.00 0.048027 36390 8651 total real 0m23.541s user 0m6.248s sys 0m2.920s ~ λ docker run --rm ubuntu:14.04 bash -c 'ulimit -n 5000 && apt-get install strace && time strace -c -f apt-get update' Reading package lists... Building dependency tree... Reading state information... The following NEW packages will be installed: strace 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 113 kB of archives. After this operation, 504 kB of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu/ trusty/main strace amd64 4.8-1ubuntu5 [113 kB] debconf: unable to initialize frontend: Dialog debconf: (TERM is not set, so the dialog frontend is not usable.) debconf: falling back to frontend: Readline debconf: unable to initialize frontend: Readline debconf: (This frontend requires a controlling tty.) debconf: falling back to frontend: Teletype dpkg-preconfigure: unable to re-open stdin: Fetched 113 kB in 0s (180 kB/s) Selecting previously unselected package strace. (Reading database ... 11527 files and directories currently installed.) Preparing to unpack .../strace_4.8-1ubuntu5_amd64.deb ... Unpacking strace (4.8-1ubuntu5) ... Setting up strace (4.8-1ubuntu5) ... Process 48 attached Process 49 attached Process 50 attached Ign http://archive.ubuntu.com trusty InRelease Ign http://archive.ubuntu.com trusty-updates InRelease Ign http://archive.ubuntu.com trusty-security InRelease Hit http://archive.ubuntu.com trusty Release.gpg Get:1 http://archive.ubuntu.com trusty-updates Release.gpg [933 B] Get:2 http://archive.ubuntu.com trusty-security Release.gpg [933 B] Process 51 attached Process 52 attached Hit http://archive.ubuntu.com trusty Release Get:3 http://archive.ubuntu.com trusty-updates Release [63.5 kB] Process 53 attached Process 54 attached Get:4 http://archive.ubuntu.com trusty-security Release [63.5 kB] Process 55 attached Get:5 http://archive.ubuntu.com trusty/main Sources [1335 kB] Process 56 attached Process 57 attached Get:6 http://archive.ubuntu.com trusty/restricted Sources [5335 B] Get:7 http://archive.ubuntu.com trusty/universe Sources [7926 kB] Get:8 http://archive.ubuntu.com trusty/main amd64 Packages [1743 kB] Get:9 http://archive.ubuntu.com trusty/restricted amd64 Packages [16.0 kB] Get:10 http://archive.ubuntu.com trusty/universe amd64 Packages [7589 kB] Get:11 http://archive.ubuntu.com trusty-updates/main Sources [248 kB] Get:12 http://archive.ubuntu.com trusty-updates/restricted Sources [2310 B] Get:13 http://archive.ubuntu.com trusty-updates/universe Sources [141 kB] Get:14 http://archive.ubuntu.com trusty-updates/main amd64 Packages [636 kB] Get:15 http://archive.ubuntu.com trusty-updates/restricted amd64 Packages [15.1 kB] Get:16 http://archive.ubuntu.com trusty-updates/universe amd64 Packages [356 kB] Get:17 http://archive.ubuntu.com trusty-security/main Sources [97.7 kB] Get:18 http://archive.ubuntu.com trusty-security/restricted Sources [1874 B] Get:19 http://archive.ubuntu.com trusty-security/universe Sources [23.3 kB] Get:20 http://archive.ubuntu.com trusty-security/main amd64 Packages [329 kB] Get:21 http://archive.ubuntu.com trusty-security/restricted amd64 Packages [14.8 kB] Get:22 http://archive.ubuntu.com trusty-security/universe amd64 Packages [128 kB] Process 58 attached Process 59 attached Process 60 attached Fetched 20.7 MB in 25s (810 kB/s) Reading package lists...Process 61 attached Process 62 attached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 87.14 0.202894 13526 15 wait4 5.74 0.013361 2 6921 select 1.32 0.003064 0 49980 getrlimit 1.30 0.003028 0 50253 49908 fcntl 1.29 0.002994 48 63 munmap 0.95 0.002207 1 4256 30 write 0.87 0.002036 25 81 47 unlink 0.85 0.001978 5 395 2 close 0.49 0.001146 0 17470 4524 read 0.03 0.000059 0 395 mmap 0.02 0.000052 0 254 9 lseek 0.01 0.000024 0 275 fstat 0.00 0.000000 0 419 76 open 0.00 0.000000 0 467 202 stat 0.00 0.000000 0 3 poll 0.00 0.000000 0 223 mprotect 0.00 0.000000 0 55 brk 0.00 0.000000 0 119 rt_sigaction 0.00 0.000000 0 3 rt_sigprocmask 0.00 0.000000 0 1 rt_sigreturn 0.00 0.000000 0 8 6 ioctl 0.00 0.000000 0 134 131 access 0.00 0.000000 0 18 pipe 0.00 0.000000 0 30 dup2 0.00 0.000000 0 4 getpid 0.00 0.000000 0 9 socket 0.00 0.000000 0 24 7 connect 0.00 0.000000 0 1 sendto 0.00 0.000000 0 2 recvfrom 0.00 0.000000 0 3 recvmsg 0.00 0.000000 0 1 bind 0.00 0.000000 0 9 getsockname 0.00 0.000000 0 1 getsockopt 0.00 0.000000 0 15 clone 0.00 0.000000 0 15 execve 0.00 0.000000 0 6 kill 0.00 0.000000 0 22 ftruncate 0.00 0.000000 0 30 getdents 0.00 0.000000 0 3 getcwd 0.00 0.000000 0 5 chdir 0.00 0.000000 0 44 rename 0.00 0.000000 0 24 chmod 0.00 0.000000 0 18 fchmod 0.00 0.000000 0 295 umask 0.00 0.000000 0 1 getuid 0.00 0.000000 0 1 geteuid 0.00 0.000000 0 1 getppid 0.00 0.000000 0 6 6 statfs 0.00 0.000000 0 15 arch_prctl 0.00 0.000000 0 40 utimes 0.00 0.000000 0 15 openat 0.00 0.000000 0 3 3 newfstatat 0.00 0.000000 0 3 3 unlinkat 0.00 0.000000 0 1 sendmmsg ------ ----------- ----------- --------- --------- ---------------- 100.00 0.232843 132455 54954 total real 0m31.160s user 0m6.760s sys 0m7.996s