[FFmpeg-user] Segmentation fault with tee and fifo muxers

Maxim Kozlov rogat1y at gmail.com
Sun Nov 6 22:20:28 EET 2016


2016-11-05 4:10 GMT+03:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:

> Is the crash only reproducible with network output or also with file
> output?
>
Only with 2 network outputs. One network output works without errors.


> Is an external encoder necessary to reproduce the issue or does it also
> happen with a native encoder?
>
Native encoder?

Is a specific input file needed to reproduce or does it also crash with
> -f lavfi -i testsrc?
>
It also crashes with testsrc


> Alternatively, feel free to provide backtrace, disassembly and register
> dump.
>

Here is strace with testsrc in input and 2 rtmp outputs.
I'll provide any other information if you will point me how to gather it.

/opt/ffmpeg-git-20161104-64bit-static$ strace ./ffmpeg -re -v quiet -f
lavfi -i testsrc -pix_fmt yuv420p -vf
"scale=width=-2:height=320,fps=fps=15" -threads 8 -vcodec libx264
-profile:v baseline -preset:v ultrafast -x264opts
no-scenecut:force-cfr=1:vbv_maxrate=256:vbv_bufsize=256 -force_key_frames
"expr:gte(t,n_forced*4)" -flags:v +cgop -acodec aac -ac 2 -ab 256k -ar
44100 -map 0 -f tee "\
[f=fifo:onfail=ignore:fifo_format=flv]rtmp://host2/live/stream|\
[f=fifo:onfail=ignore:fifo_format=flv]rtmp://host1/live/strean"
execve("./ffmpeg", ["./ffmpeg", "-re", "-v", "quiet", "-f", "lavfi", "-i",
"testsrc", "-pix_fmt", "yuv420p", "-vf",
"scale=width=-2:height=320,fps=fp"..., "-threads", "8", "-vcodec",
"libx264", ...], [/* 22 vars */]) = 0
uname({sys="Linux", node="host2", ...}) = 0
brk(0)                                  = 0x4364000
brk(0x4365640)                          = 0x4365640
arch_prctl(ARCH_SET_FS, 0x4364d00)      = 0
set_tid_address(0x4364fd0)              = 21181
set_robust_list(0x4364fe0, 24)          = 0
rt_sigaction(SIGRTMIN, {0x1f9d340, [], SA_RESTORER|SA_SIGINFO, 0x1f9e160},
NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x1f9d3d0, [], SA_RESTORER|SA_RESTART|SA_SIGINFO,
0x1f9e160}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/opt/ffmpeg-git-20161104-64bit-s"..., 4096) = 44
brk(0x4386640)                          = 0x4386640
brk(0x4387000)                          = 0x4387000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or
directory)
open("/proc/self/status", O_RDONLY)     = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "Name:\tffmpeg\nState:\tR (running)\n"..., 1024) = 819
close(3)                                = 0
open("/sys/devices/system/node", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC)
= 3
read(4, "0-31\n", 8192)                 = 5
close(4)                                = 0
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46faa9d000
mprotect(0x7f46faa9d000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46fb29c9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46fb29d9d0, tls=0x7f46fb29d700,
child_tidptr=0x7f46fb29d9d0) = 21182
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46fa29c000
mprotect(0x7f46fa29c000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46faa9b9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46faa9c9d0, tls=0x7f46faa9c700,
child_tidptr=0x7f46faa9c9d0) = 21183
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f9a9b000
mprotect(0x7f46f9a9b000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46fa29a9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46fa29b9d0, tls=0x7f46fa29b700,
child_tidptr=0x7f46fa29b9d0) = 21184
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f929a000
mprotect(0x7f46f929a000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f9a999f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f9a9a9d0, tls=0x7f46f9a9a700,
child_tidptr=0x7f46f9a9a9d0) = 21185
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f8a99000
mprotect(0x7f46f8a99000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f92989f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f92999d0, tls=0x7f46f9299700,
child_tidptr=0x7f46f92999d0) = 21186
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f8298000
mprotect(0x7f46f8298000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f8a979f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f8a989d0, tls=0x7f46f8a98700,
child_tidptr=0x7f46f8a989d0) = 21187
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f7a97000
mprotect(0x7f46f7a97000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f82969f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f82979d0, tls=0x7f46f8297700,
child_tidptr=0x7f46f82979d0) = 21188
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f7296000
mprotect(0x7f46f7296000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f7a959f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f7a969d0, tls=0x7f46f7a96700,
child_tidptr=0x7f46f7a969d0) = 21189
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f6a95000
mprotect(0x7f46f6a95000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f72949f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f72959d0, tls=0x7f46f7295700,
child_tidptr=0x7f46f72959d0) = 21190
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f6294000
mprotect(0x7f46f6294000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f6a939f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f6a949d0, tls=0x7f46f6a94700,
child_tidptr=0x7f46f6a949d0) = 21191
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f5a93000
mprotect(0x7f46f5a93000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f62929f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f62939d0, tls=0x7f46f6293700,
child_tidptr=0x7f46f62939d0) = 21192
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f5292000
mprotect(0x7f46f5292000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f5a919f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f5a929d0, tls=0x7f46f5a92700,
child_tidptr=0x7f46f5a929d0) = 21193
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f4a91000
mprotect(0x7f46f4a91000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f52909f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f52919d0, tls=0x7f46f5291700,
child_tidptr=0x7f46f52919d0) = 21194
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f4290000
mprotect(0x7f46f4290000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f4a8f9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f4a909d0, tls=0x7f46f4a90700,
child_tidptr=0x7f46f4a909d0) = 21195
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f3a8f000
mprotect(0x7f46f3a8f000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f428e9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f428f9d0, tls=0x7f46f428f700,
child_tidptr=0x7f46f428f9d0) = 21196
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f328e000
mprotect(0x7f46f328e000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f3a8d9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f3a8e9d0, tls=0x7f46f3a8e700,
child_tidptr=0x7f46f3a8e9d0) = 21197
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f2a8d000
mprotect(0x7f46f2a8d000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f328c9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f328d9d0, tls=0x7f46f328d700,
child_tidptr=0x7f46f328d9d0) = 21198
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f228c000
mprotect(0x7f46f228c000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f2a8b9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f2a8c9d0, tls=0x7f46f2a8c700,
child_tidptr=0x7f46f2a8c9d0) = 21199
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f1a8b000
mprotect(0x7f46f1a8b000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f228a9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f228b9d0, tls=0x7f46f228b700,
child_tidptr=0x7f46f228b9d0) = 21200
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f128a000
mprotect(0x7f46f128a000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f1a899f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f1a8a9d0, tls=0x7f46f1a8a700,
child_tidptr=0x7f46f1a8a9d0) = 21201
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f0a89000
mprotect(0x7f46f0a89000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f12889f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f12899d0, tls=0x7f46f1289700,
child_tidptr=0x7f46f12899d0) = 21202
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46f0288000
mprotect(0x7f46f0288000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f0a879f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f0a889d0, tls=0x7f46f0a88700,
child_tidptr=0x7f46f0a889d0) = 21203
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46efa87000
mprotect(0x7f46efa87000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46f02869f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46f02879d0, tls=0x7f46f0287700,
child_tidptr=0x7f46f02879d0) = 21204
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46ef286000
mprotect(0x7f46ef286000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46efa859f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46efa869d0, tls=0x7f46efa86700,
child_tidptr=0x7f46efa869d0) = 21205
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46eea85000
mprotect(0x7f46eea85000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46ef2849f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46ef2859d0, tls=0x7f46ef285700,
child_tidptr=0x7f46ef2859d0) = 21206
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46ee284000
mprotect(0x7f46ee284000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46eea839f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46eea849d0, tls=0x7f46eea84700,
child_tidptr=0x7f46eea849d0) = 21207
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46eda83000
mprotect(0x7f46eda83000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46ee2829f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46ee2839d0, tls=0x7f46ee283700,
child_tidptr=0x7f46ee2839d0) = 21208
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46ed282000
mprotect(0x7f46ed282000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46eda819f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46eda829d0, tls=0x7f46eda82700,
child_tidptr=0x7f46eda829d0) = 21209
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46eca81000
mprotect(0x7f46eca81000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46ed2809f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46ed2819d0, tls=0x7f46ed281700,
child_tidptr=0x7f46ed2819d0) = 21210
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46ec280000
mprotect(0x7f46ec280000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46eca7f9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46eca809d0, tls=0x7f46eca80700,
child_tidptr=0x7f46eca809d0) = 21211
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46eba7f000
mprotect(0x7f46eba7f000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46ec27e9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46ec27f9d0, tls=0x7f46ec27f700,
child_tidptr=0x7f46ec27f9d0) = 21212
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46eb27e000
mprotect(0x7f46eb27e000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46eba7d9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46eba7e9d0, tls=0x7f46eba7e700,
child_tidptr=0x7f46eba7e9d0) = 21213
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46eaa7d000
mprotect(0x7f46eaa7d000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46eb27c9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46eb27d9d0, tls=0x7f46eb27d700,
child_tidptr=0x7f46eb27d9d0) = 21214
futex(0x43953a0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x4395344, FUTEX_WAIT_PRIVATE, 1, NULL) = 0
futex(0x43953a0, FUTEX_WAKE_PRIVATE, 1) = 0
mmap(NULL, 249856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46eaa40000
mmap(NULL, 233472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46eaa07000
getrusage(RUSAGE_SELF, {ru_utime={0, 6913}, ru_stime={0, 6913}, ...}) = 0
clock_gettime(CLOCK_MONOTONIC, {3732958, 52034000}) = 0
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46ea206000
mprotect(0x7f46ea206000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46eaa059f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46eaa069d0, tls=0x7f46eaa06700,
child_tidptr=0x7f46eaa069d0) = 21215
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e9a05000
mprotect(0x7f46e9a05000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46ea2049f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46ea2059d0, tls=0x7f46ea205700,
child_tidptr=0x7f46ea2059d0) = 21216
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e9204000
mprotect(0x7f46e9204000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e9a039f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e9a049d0, tls=0x7f46e9a04700,
child_tidptr=0x7f46e9a049d0) = 21217
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e8a03000
mprotect(0x7f46e8a03000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e92029f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e92039d0, tls=0x7f46e9203700,
child_tidptr=0x7f46e92039d0) = 21218
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e8202000
mprotect(0x7f46e8202000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e8a019f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e8a029d0, tls=0x7f46e8a02700,
child_tidptr=0x7f46e8a029d0) = 21219
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e7a01000
mprotect(0x7f46e7a01000, 4096, PROT_NONE) = 0
mprotect(0x7f46e508d000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e588c9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e588d9d0, tls=0x7f46e588d700,
child_tidptr=0x7f46e588d9d0) = 21225
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e488c000
mprotect(0x7f46e488c000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e508b9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e508c9d0, tls=0x7f46e508c700,
child_tidptr=0x7f46e508c9d0) = 21226
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e408b000
mprotect(0x7f46e408b000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e488a9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e488b9d0, tls=0x7f46e488b700,
child_tidptr=0x7f46e488b9d0) = 21227
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e388a000
mprotect(0x7f46e388a000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e40899f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e408a9d0, tls=0x7f46e408a700,
child_tidptr=0x7f46e408a9d0) = 21228
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e3089000
mprotect(0x7f46e3089000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e38889f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e38899d0, tls=0x7f46e3889700,
child_tidptr=0x7f46e38899d0) = 21229
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e2888000
mprotect(0x7f46e2888000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e30879f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e30889d0, tls=0x7f46e3088700,
child_tidptr=0x7f46e30889d0) = 21230
brk(0x4883000)                          = 0x4883000
brk(0x48a7000)                          = 0x48a7000
brk(0x48cb000)                          = 0x48cb000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e2836000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e2741000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e26ef000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e25fa000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e25a8000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e24b3000
brk(0x48f1000)                          = 0x48f1000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e2461000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e236c000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e231a000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e2225000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e21d3000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e20de000
brk(0x4917000)                          = 0x4917000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e208c000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e1f97000
mmap(NULL, 335872, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e1f45000
mmap(NULL, 1003520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e1e50000
brk(0x4939000)                          = 0x4939000
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e164f000
mprotect(0x7f46e164f000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e1e4e9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e1e4f9d0, tls=0x7f46e1e4f700,
child_tidptr=0x7f46e1e4f9d0) = 21231
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e0e4e000
mprotect(0x7f46e0e4e000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e164d9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e164e9d0, tls=0x7f46e164e700,
child_tidptr=0x7f46e164e9d0) = 21232
mmap(NULL, 8392704, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e064d000
mprotect(0x7f46e064d000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f46e0e4c9f0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f46e0e4d9d0, tls=0x7f46e0e4d700,
child_tidptr=0x7f46e0e4d9d0) = 21233
clock_gettime(CLOCK_MONOTONIC, {3732958, 65440431}) = 0
clock_gettime(CLOCK_MONOTONIC, {3732958, 65523578}) = 0
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
clock_gettime(CLOCK_MONOTONIC, {3732958, 65671666}) = 0
mmap(NULL, 147456, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x7f46e0054000
brk(0x495f000)                          = 0x495f000
munmap(0x7f46eaa07000, 233472)          = 0
clock_gettime(CLOCK_MONOTONIC, {3732958, 66498887}) = 0
clock_gettime(CLOCK_MONOTONIC, {3732958, 66544494}) = 0
clock_gettime(CLOCK_MONOTONIC, {3732958, 66582291}) = 0
nanosleep({0, 10000000},  <unfinished ...>
+++ killed by SIGSEGV +++
Segmentation fault


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