sendfiletest-trace

execve("./a.out", ["./a.out"], [/* 34 vars */]) = 0
brk(0)                                  = 0x1276000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f41ab417000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/opt/rh/python27/root/usr/lib64/tls/x86_64/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/rh/python27/root/usr/lib64/tls/x86_64", 0x7fffcd26e880) = -1 ENOENT (No such file or directory)
open("/opt/rh/python27/root/usr/lib64/tls/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/rh/python27/root/usr/lib64/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/opt/rh/python27/root/usr/lib64/x86_64/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/rh/python27/root/usr/lib64/x86_64", 0x7fffcd26e880) = -1 ENOENT (No such file or directory)
open("/opt/rh/python27/root/usr/lib64/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/rh/python27/root/usr/lib64", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=51459, ...}) = 0
mmap(NULL, 51459, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f41ab40a000
close(3)                                = 0
open("/lib64/libc.so.6", O_RDONLY)      = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\356\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1921176, ...}) = 0
mmap(NULL, 3750152, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f41aae65000
mprotect(0x7f41aafef000, 2097152, PROT_NONE) = 0
mmap(0x7f41ab1ef000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18a000) = 0x7f41ab1ef000
mmap(0x7f41ab1f4000, 18696, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f41ab1f4000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f41ab409000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f41ab408000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f41ab407000
arch_prctl(ARCH_SET_FS, 0x7f41ab408700) = 0
mprotect(0x7f41ab1ef000, 16384, PROT_READ) = 0
mprotect(0x7f41ab418000, 4096, PROT_READ) = 0
munmap(0x7f41ab40a000, 51459)           = 0
open("/tmp/bigfile", O_RDONLY)          = 3
open("/tmp/output", O_WRONLY|O_CREAT, 03777771511571070) = 4
sendfile(4, 3, NULL, 4294967296)        = 2147479552
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f41ab416000
write(1, "Success, asked for: 4294967296, "..., 52) = 52
exit_group(0)