It seems the strace attachment didn' t go through. Here it is.
execve("/sbin/iwlist", ["/sbin/iwlist", "wlan0", "scan"], [/* 17 vars */]) = 0
brk(0) = 0x1234000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f7249921000
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f724991f000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=76006, ...}) = 0
mmap(NULL, 76006, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f724990c000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libiw.so.29", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0 \0\0\0\0\0\0@"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=32016, ...}) = 0
mmap(NULL, 2127320, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f72494fe000
mprotect(0x7f7249505000, 2097152, PROT_NONE) = 0
mmap(0x7f7249705000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f7249705000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libm.so.6", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p>\0\0\0\0\0\0@"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=534824, ...}) = 0
mmap(NULL, 2629848, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f724927b000
mprotect(0x7f72492fd000, 2093056, PROT_NONE) = 0
mmap(0x7f72494fc000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x81000) = 0x7f72494fc000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY) = 3
read(3,
"\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\346\1\0\0\0\0\0@"..., 832)
= 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1367432, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f724990b000
mmap(NULL, 3474072, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f7248f2a000
mprotect(0x7f7249071000, 2097152, PROT_NONE) = 0
mmap(0x7f7249271000, 20480, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x147000) = 0x7f7249271000
mmap(0x7f7249276000, 17048, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f7249276000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f724990a000
arch_prctl(ARCH_SET_FS, 0x7f724990a6f0) = 0
open("/dev/urandom", O_RDONLY) = 3
read(3, "\311\200\177\262\274\204\266\1"..., 8) = 8
close(3) = 0
mprotect(0x7f7249271000, 16384, PROT_READ) = 0
mprotect(0x7f72494fc000, 4096, PROT_READ) = 0
mprotect(0x7f7249922000, 4096, PROT_READ) = 0
munmap(0x7f724990c000, 76006) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
ioctl(3, SIOCGIWRANGE, 0x7fffaca28560) = 0
ioctl(3, SIOCSIWSCAN, 0x7fffaca28c40) = 0
select(0, [], NULL, NULL, {0, 250000}) = 0 (Timeout)
brk(0) = 0x1234000
brk(0x1256000) = 0x1256000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 EAGAIN (Resource temporarily
unavailable)
select(0, [], NULL, NULL, {0, 100000}) = 0 (Timeout)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mmap(NULL, 266240, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f72498c9000
brk(0x1255000) = 0x1255000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f72498c9000, 266240, 528384, MREMAP_MAYMOVE) = 0x7f7249848000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7249848000, 528384, 1052672, MREMAP_MAYMOVE) = 0x7f7249747000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7249747000, 1052672, 2101248, MREMAP_MAYMOVE) = 0x7f7248d29000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7248d29000, 2101248, 4198400, MREMAP_MAYMOVE) = 0x7f7248928000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7248928000, 4198400, 8392704, MREMAP_MAYMOVE) = 0x7f7248127000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7248127000, 8392704, 16781312, MREMAP_MAYMOVE) = 0x7f7247126000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7247126000, 16781312, 33558528, MREMAP_MAYMOVE) = 0x7f7245125000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7245125000, 33558528, 67112960, MREMAP_MAYMOVE) = 0x7f7241124000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7241124000, 67112960, 134221824, MREMAP_MAYMOVE) = 0x7f7239123000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7239123000, 134221824, 268439552, MREMAP_MAYMOVE) = 0x7f7229122000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7229122000, 268439552, 536875008, MREMAP_MAYMOVE) = 0x7f7209121000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f7209121000, 536875008, 1073745920, MREMAP_MAYMOVE) = 0x7f71c9120000
ioctl(3, SIOCGIWSCAN, 0x7fffaca28c40) = -1 E2BIG (Argument list too long)
mremap(0x7f71c9120000, 1073745920, 18446744071562072064, MREMAP_MAYMOVE) = -1
EFAULT (Bad address)
mmap(NULL, 18446744071562072064, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
mmap(NULL, 18446744071562203136, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
mmap(NULL, 134217728, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1,
0) = 0x7f7240f2a000
munmap(0x7f7240f2a000, 51208192) = 0
munmap(0x7f7248000000, 15900672) = 0
mprotect(0x7f7244000000, 135168, PROT_READ|PROT_WRITE) = 0
mmap(NULL, 18446744071562072064, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
munmap(0x7f71c9120000, 1073745920) = 0
write(2, "print_scanning_info: Allocation f"..., 39) = 39
close(3) = 0
exit_group(0) = ?
