Mar 15 15:51:52 localhost.localdomain sudo[1717]:  gbisson : TTY=pts/0 ; PWD=/home/gbisson ; USER=root ; COMMAND=/usr/lib/snapd/snap-confine snap.core.hook.configure /writable/strace -f /snap/core/current/usr/bin/snapctl
Mar 15 15:51:52 localhost.localdomain sudo[1717]: pam_unix(sudo:session): session opened for user root by gbisson(uid=0)
Mar 15 15:51:52 localhost.localdomain audit[1718]: AVC apparmor="DENIED" operation="capable" profile="snap.core.hook.configure" pid=1718 comm="strace" capability=19  capname="sys_ptrace"
Mar 15 15:51:52 localhost.localdomain audit[1718]: AVC apparmor="DENIED" operation="capable" profile="snap.core.hook.configure" pid=1718 comm="strace" capability=19  capname="sys_ptrace"
Mar 15 15:51:52 localhost.localdomain kernel: audit: type=1400 audit(1489593112.869:15): apparmor="DENIED" operation="capable" profile="snap.core.hook.configure" pid=1718 comm="strace" capability=19  capname="sys_ptrace"
Mar 15 15:51:52 localhost.localdomain kernel: audit: type=1400 audit(1489593112.869:16): apparmor="DENIED" operation="capable" profile="snap.core.hook.configure" pid=1718 comm="strace" capability=19  capname="sys_ptrace"
Mar 15 15:51:52 localhost.localdomain audit[1720]: SECCOMP auid=1000 uid=0 gid=0 ses=4 pid=1720 comm="snapctl" exe="/snap/core/1443/usr/bin/snapctl" sig=31 arch=40000028 syscall=282 compat=0 ip=0x54d48d7c code=0x0
Mar 15 15:51:52 localhost.localdomain kernel: audit: type=1326 audit(1489593112.939:17): auid=1000 uid=0 gid=0 ses=4 pid=1720 comm="snapctl" exe="/snap/core/1443/usr/bin/snapctl" sig=31 arch=40000028 syscall=282 compat=0 ip=0x54d48d7c code=0x0


=======================================

localhost:~$ SNAP_NAME=core sudo -E /usr/lib/snapd/snap-confine snap.core.hook.configure /writable/strace -f /snap/core/current/usr/bin/snapctl
execve("/snap/core/current/usr/bin/snapctl", ["/snap/core/current/usr/bin/snapc"...], [/* 25 vars */]) = 0
brk(NULL)                               = 0x56e01000
uname({sysname="Linux", nodename="localhost.localdomain", ...}) = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x76fd1000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=13688, ...}) = 0
mmap2(NULL, 13688, PROT_READ, MAP_PRIVATE, 3, 0) = 0x76fcd000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/arm-linux-gnueabihf/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\235F\0\0004\0\0\0"..., 512) = 512
lseek(3, 108332, SEEK_SET)              = 108332
read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 1640) = 1640
lseek(3, 70048, SEEK_SET)               = 70048
read(3, "A2\0\0\0aeabi\0\1(\0\0\0\0057-A\0\6\n\7A\10\1\t\2\n\4\22"..., 51) = 51
fstat64(3, {st_mode=S_IFREG|0755, st_size=109972, ...}) = 0
mmap2(NULL, 143940, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x76f88000
mprotect(0x76f99000, 61440, PROT_NONE)  = 0
mmap2(0x76fa8000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10000) = 0x76fa8000
mmap2(0x76faa000, 4676, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x76faa000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/arm-linux-gnueabihf/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\331i\1\0004\0\0\0"..., 512) = 512
lseek(3, 894128, SEEK_SET)              = 894128
read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2960) = 2960
lseek(3, 888324, SEEK_SET)              = 888324
read(3, "A2\0\0\0aeabi\0\1(\0\0\0\0057-A\0\6\n\7A\10\1\t\2\n\3\f"..., 51) = 51
fstat64(3, {st_mode=S_IFREG|0755, st_size=897088, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x76fcc000
mmap2(NULL, 963928, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x76e9c000
mprotect(0x76f72000, 65536, PROT_NONE)  = 0
mmap2(0x76f82000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd6000) = 0x76f82000
mmap2(0x76f85000, 9560, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x76f85000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x76fcb000
set_tls(0x76fcb4c0, 0x76fcbba8, 0x76fd4050, 0x76fcb4c0, 0x76fd4050) = 0
mprotect(0x76f82000, 8192, PROT_READ)   = 0
mprotect(0x76fa8000, 4096, PROT_READ)   = 0
mprotect(0x5502b000, 2662400, PROT_READ) = 0
mprotect(0x76fd3000, 4096, PROT_READ)   = 0
munmap(0x76fcd000, 13688)               = 0
set_tid_address(0x76fcb068)             = 1720
set_robust_list(0x76fcb070, 12)         = 0
rt_sigaction(SIGRTMIN, {0x76f8c1f5, [], SA_RESTORER|SA_SIGINFO, 0x76ec1271}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x76f8c295, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x76ec1271}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
ugetrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
getpid()                                = 1720
sched_getaffinity(0, 8192, [f, 0, 0, 0]) = 4
mmap2(0x55400000, 806363136, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x24a4c000
mmap2(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x76e5c000
clock_gettime(CLOCK_MONOTONIC, {1700, 706413895}) = 0
mmap2(0x34b4c000, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x34b4c000
mmap2(0x34b3c000, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x34b3c000
mmap2(0x24a4c000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x24a4c000
mmap2(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x76e4c000
clock_gettime(CLOCK_MONOTONIC, {1700, 707520558}) = 0
rt_sigprocmask(SIG_SETMASK, NULL, [], 8) = 0
clock_gettime(CLOCK_MONOTONIC, {1700, 708302555}) = 0
clock_gettime(CLOCK_MONOTONIC, {1700, 708493555}) = 0
sigaltstack(NULL, {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
sigaltstack({ss_sp=0x34b4e000, ss_flags=0, ss_size=32720}, NULL) = 0
gettid()                                = 1720
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
clock_gettime(CLOCK_MONOTONIC, {1700, 709660551}) = 0
rt_sigaction(SIGHUP, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGHUP, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGINT, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGINT, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGQUIT, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGQUIT, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGILL, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGILL, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGTRAP, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGTRAP, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGABRT, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGABRT, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGBUS, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGBUS, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGFPE, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGFPE, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGUSR1, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGUSR1, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGSEGV, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGSEGV, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGUSR2, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGUSR2, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGPIPE, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGPIPE, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGALRM, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGALRM, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGTERM, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGSTKFLT, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGSTKFLT, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGCHLD, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGURG, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGURG, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGXCPU, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGXCPU, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGXFSZ, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGXFSZ, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGVTALRM, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGVTALRM, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGPROF, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGPROF, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGWINCH, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGWINCH, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGIO, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGIO, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGPWR, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGPWR, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGSYS, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGSYS, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {0x76f8c1f5, [], SA_RESTORER|SA_SIGINFO, 0x76ec1271}, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {0x76f8c1f5, [], SA_RESTORER|SA_SIGINFO, 0x76ec1271}, 8) = 0
rt_sigaction(SIGRTMIN, {0x76f8c1f5, [], SA_RESTORER|SA_STACK|SA_SIGINFO, 0x76ec1271}, NULL, 8) = 0
rt_sigaction(SIGRT_1, NULL, {0x76f8c295, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x76ec1271}, 8) = 0
rt_sigaction(SIGRT_1, NULL, {0x76f8c295, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x76ec1271}, 8) = 0
rt_sigaction(SIGRT_1, {0x76f8c295, [], SA_RESTORER|SA_STACK|SA_RESTART|SA_SIGINFO, 0x76ec1271}, NULL, 8) = 0
rt_sigaction(SIGRT_2, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_2, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_3, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_3, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_4, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_4, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_5, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_5, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_6, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_6, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_7, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_7, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_8, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_8, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_9, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_9, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_10, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_10, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_11, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_11, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_12, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_12, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_13, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_13, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_14, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_14, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_15, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_15, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_16, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_16, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_17, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_17, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_18, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_18, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_19, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_19, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_20, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_20, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_21, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_21, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_22, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_22, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_23, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_23, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_24, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_24, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_25, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_25, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_26, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_26, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_27, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_27, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_28, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_28, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_29, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_29, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_30, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_30, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_31, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_31, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_32, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGRT_32, {0x54cdeed0, ~[], SA_STACK|SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
clock_gettime(CLOCK_MONOTONIC, {1700, 733574466}) = 0
clock_gettime(CLOCK_MONOTONIC, {1700, 733775465}) = 0
brk(NULL)                               = 0x56e01000
brk(0x56e22000)                         = 0x56e22000
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap2(NULL, 8388608, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7664c000
mprotect(0x7664c000, 4096, PROT_NONE)   = 0
clone(child_stack=0x76e4af98, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x76e4b4c8, tls=0x76e4b920, child_tidptr=0x76e4b4c8) = 1721
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
mmap2(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7660c000
clock_gettime(CLOCK_MONOTONIC, {1700, 736028790}) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap2(NULL, 8388608, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x75e0c000
mprotect(0x75e0c000, 4096, PROT_NONE)   = 0
clone(child_stack=0x7660af98, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7660b4c8, tls=0x7660b920, child_tidptr=0x7660b4c8) = 1722
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
clock_gettime(CLOCK_MONOTONIC, {1700, 737369119}) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap2(NULL, 8388608, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7560c000
mprotect(0x7560c000, 4096, PROT_NONE)   = 0
clone(child_stack=0x75e0af98, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x75e0b4c8, tls=0x75e0b920, child_tidptr=0x75e0b4c8) = 1723
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0x552d0354, FUTEX_WAIT, 0, NULL/writable/strace: Process 1723 attached
/writable/strace: Process 1722 attached
 <unfinished ...>
[pid  1723] set_robust_list(0x75e0b4d0, 12 <unfinished ...>
[pid  1722] set_robust_list(0x7660b4d0, 12 <unfinished ...>
[pid  1723] <... set_robust_list resumed> ) = 0
[pid  1722] <... set_robust_list resumed> ) = 0
[pid  1723] sigaltstack(NULL,  <unfinished ...>
[pid  1722] sigaltstack(NULL,  <unfinished ...>
[pid  1723] <... sigaltstack resumed> {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
[pid  1722] <... sigaltstack resumed> {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
[pid  1723] sigaltstack({ss_sp=0x34b9c000, ss_flags=0, ss_size=32720},  <unfinished ...>
[pid  1722] sigaltstack({ss_sp=0x34b94000, ss_flags=0, ss_size=32720},  <unfinished ...>
[pid  1723] <... sigaltstack resumed> NULL) = 0
[pid  1722] <... sigaltstack resumed> NULL) = 0
[pid  1723] gettid( <unfinished ...>
[pid  1722] gettid( <unfinished ...>
[pid  1723] <... gettid resumed> )      = 1723
[pid  1722] <... gettid resumed> )      = 1722
[pid  1723] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  1722] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  1723] <... rt_sigprocmask resumed> NULL, 8) = 0
[pid  1722] <... rt_sigprocmask resumed> NULL, 8) = 0
[pid  1723] futex(0x552d0354, FUTEX_WAKE, 1/writable/strace: Process 1721 attached
 <unfinished ...>
[pid  1720] <... futex resumed> )       = 0
[pid  1720] openat(AT_FDCWD, "/proc/sys/net/core/somaxconn", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid  1720] read(3, "128\n", 4096)      = 4
[pid  1720] read(3, "", 4092)           = 0
[pid  1720] close(3)                    = 0
[pid  1720] socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
[pid  1720] close(3)                    = 0
[pid  1720] socket(PF_INET6, SOCK_STREAM, IPPROTO_TCP) = 3
[pid  1720] setsockopt(3, SOL_IPV6, IPV6_V6ONLY, [1], 4) = 0
[pid  1723] <... futex resumed> )       = 1
[pid  1722] clock_gettime(CLOCK_MONOTONIC,  <unfinished ...>
[pid  1723] futex(0x34b72824, FUTEX_WAIT, 0, NULL <unfinished ...>
[pid  1722] <... clock_gettime resumed> {1700, 747026084}) = 0
[pid  1721] set_robust_list(0x76e4b4d0, 12) = 0
[pid  1722] mmap2(NULL, 2097152, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0 <unfinished ...>
[pid  1721] sigaltstack(NULL,  <unfinished ...>
[pid  1722] <... mmap2 resumed> )       = 0x7540c000
[pid  1721] <... sigaltstack resumed> {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
[pid  1722] munmap(0x7540c000, 999424 <unfinished ...>
[pid  1721] sigaltstack({ss_sp=0x34b84000, ss_flags=0, ss_size=32720},  <unfinished ...>
[pid  1722] <... munmap resumed> )      = 0
[pid  1721] <... sigaltstack resumed> NULL) = 0
[pid  1722] munmap(0x75600000, 49152 <unfinished ...>
[pid  1721] gettid( <unfinished ...>
[pid  1722] <... munmap resumed> )      = 0
[pid  1721] <... gettid resumed> )      = 1721
[pid  1722] mprotect(0x75500000, 135168, PROT_READ|PROT_WRITE <unfinished ...>
[pid  1721] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  1722] <... mprotect resumed> )    = 0
[pid  1721] <... rt_sigprocmask resumed> NULL, 8) = 0
[pid  1722] rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1],  <unfinished ...>
[pid  1721] clock_gettime(CLOCK_MONOTONIC,  <unfinished ...>
[pid  1722] <... rt_sigprocmask resumed> [], 8) = 0
[pid  1721] <... clock_gettime resumed> {1700, 748941078}) = 0
[pid  1722] mmap2(NULL, 8388608, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20} <unfinished ...>
[pid  1722] <... mmap2 resumed> )       = 0x74d00000
[pid  1721] <... _newselect resumed> )  = 0 (Timeout)
[pid  1722] mprotect(0x74d00000, 4096, PROT_NONE <unfinished ...>
[pid  1721] clock_gettime(CLOCK_MONOTONIC,  <unfinished ...>
[pid  1722] <... mprotect resumed> )    = 0
[pid  1721] <... clock_gettime resumed> {1700, 749701408}) = 0
[pid  1722] clone( <unfinished ...>
[pid  1721] clock_gettime(CLOCK_REALTIME, /writable/strace: Process 1724 attached
 <unfinished ...>
[pid  1724] set_robust_list(0x754ff4d0, 12 <unfinished ...>
[pid  1722] <... clone resumed> child_stack=0x754fef98, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x754ff4c8, tls=0x754ff920, child_tidptr=0x754ff4c8) = 1724
[pid  1724] <... set_robust_list resumed> ) = 0
[pid  1722] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  1724] sigaltstack(NULL,  <unfinished ...>
[pid  1722] <... rt_sigprocmask resumed> NULL, 8) = 0
[pid  1724] <... sigaltstack resumed> {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
[pid  1722] _newselect(0, NULL, NULL, NULL, {0, 100} <unfinished ...>
[pid  1724] sigaltstack({ss_sp=0x34bc2000, ss_flags=0, ss_size=32720},  <unfinished ...>
[pid  1721] <... clock_gettime resumed> {1489593112, 950081074}) = 0
[pid  1724] <... sigaltstack resumed> NULL) = 0
[pid  1722] <... _newselect resumed> )  = 0 (Timeout)
[pid  1724] gettid( <unfinished ...>
[pid  1722] futex(0x34b725a4, FUTEX_WAIT, 0, NULL <unfinished ...>
[pid  1724] <... gettid resumed> )      = 1724
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20} <unfinished ...>
[pid  1724] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  1721] <... _newselect resumed> )  = 0 (Timeout)
[pid  1724] <... rt_sigprocmask resumed> NULL, 8) = 0
[pid  1721] clock_gettime(CLOCK_MONOTONIC,  <unfinished ...>
[pid  1724] futex(0x34ba40a4, FUTEX_WAIT, 0, NULL <unfinished ...>
[pid  1721] <... clock_gettime resumed> {1700, 752245066}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 952312399}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 753027730}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 952957063}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 753671061}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 953607728}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 754307725}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 954244059}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 754949056}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 954888390}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 755592721}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 955525388}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 756232052}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 956171052}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 756867716}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 956799716}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 757511381}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 957445048}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 758150045}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 958073379}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 758782043}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 958715376}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 759421040}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 959350707}) = 0
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 760103038}) = 0
[pid  1721] clock_gettime(CLOCK_REALTIME, {1489593112, 960038372}) = 0
[pid  1721] futex(0x34ba40a4, FUTEX_WAKE, 1 <unfinished ...>
[pid  1724] <... futex resumed> )       = 0
[pid  1721] <... futex resumed> )       = 1
[pid  1724] futex(0x34ba40a4, FUTEX_WAIT, 0, NULL <unfinished ...>
[pid  1721] _newselect(0, NULL, NULL, NULL, {0, 20}) = 0 (Timeout)
[pid  1721] clock_gettime(CLOCK_MONOTONIC, {1700, 761159701}) = 0
[pid  1721] futex(0x552cfcb0, FUTEX_WAIT, 0, {60, 0}