# strace ./fxotune -vvv -i -b 2 -e 2
execve("./fxotune", ["./fxotune", "-vvv", "-i", "-b", "2", "-e", "2"], [/* 17 vars */]) = 0
uname({sys="Linux", node="swmhq-pbx01", ...}) = 0
brk(0)                                  = 0x506000
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) = 0x2b7ab2236000
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=34242, ...}) = 0
mmap(NULL, 34242, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b7ab2238000
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\0\320=\0\0"..., 640) = 640
fstat(3, {st_mode=S_IFREG|0644, st_size=531600, ...}) = 0
mmap(NULL, 1577384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2b7ab2337000
mprotect(0x2b7ab23b8000, 1049000, PROT_NONE) = 0
mmap(0x2b7ab24b7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x80000) = 0x2b7ab24b7000
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\200\305"..., 640) = 640
lseek(3, 624, SEEK_SET)                 = 624
read(3, "\4\0\0\0\20\0\0\0\1\0\0\0GNU\0\0\0\0\0\2\0\0\0\6\0\0\0"..., 32) = 32
fstat(3, {st_mode=S_IFREG|0755, st_size=1286104, ...}) = 0
mmap(NULL, 2344904, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2b7ab24b9000
mprotect(0x2b7ab25da000, 1161160, PROT_NONE) = 0
mmap(0x2b7ab26da000, 98304, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x121000) = 0x2b7ab26da000
mmap(0x2b7ab26f2000, 14280, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2b7ab26f2000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b7ab26f6000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b7ab26f7000
mprotect(0x2b7ab26da000, 86016, PROT_READ) = 0
arch_prctl(ARCH_SET_FS, 0x2b7ab26f6c80) = 0
munmap(0x2b7ab2238000, 34242)           = 0
open("/etc/fxotune.conf", O_WRONLY|O_CREAT|O_TRUNC, 0) = 3
open("/dev/zap/2", O_RDWR)              = 4
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) = 0x2b7ab2238000
write(1, "Tuning module /dev/zap/2\n", 25Tuning module /dev/zap/2
) = 25
brk(0)                                  = 0x506000
brk(0x527000)                           = 0x527000
open("fxotune.vals", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 5
ioctl(4, 0x40094a3f, 0x5042e0)          = 0
ioctl(4, 0x40044a28, 0x7ffff888841c)    = 0
ioctl(4, 0x80184a1c, 0x7ffff88883e0)    = 0
ioctl(4, 0x40184a1b, 0x7ffff88883e0)    = 0
ioctl(4, 0x40044a07, 0x7ffff888841c)    = 0
write(1, "Resetting line\n", 15Resetting line
)        = 15
ioctl(4, 0x40044a07, 0x7ffff888713c)    = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({2, 0}, {2, 0})               = 0
ioctl(4, 0x40044a07, 0x7ffff888713c)    = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({2, 0}, {2, 0})               = 0
ioctl(4, 0x41044a1f, 0x7ffff8887010)    = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, {1, 0})               = 0
ioctl(4, 0x40094a3f, 0x5042e0)          = 0
ioctl(4, 0x40044a03, 0x7ffff888841c)    = 0
write(4, "\0\0\20)r2\230\34)\3\315\373#\2\231\5\277\1\206\0\211\7"..., 4000) = 4000
read(4, "\360\377\360\377\370\377\360\377\360\377\370\377\360\377"..., 4000) = 4000
fstat(5, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b7ab2239000
write(1, "0,0,0,0,0,0,0,0,0,-1,1039.489258"..., 420,0,0,0,0,0,0,0,0,-1,1039.489258,0.219943
) = 42
ioctl(4, 0x40094a3f, 0x5042e9)          = 0
ioctl(4, 0x40044a03, 0x7ffff888841c)    = 0
write(4, "\0\0\20)r2\230\34)\3\315\373#\2\231\5\277\1\206\0\211\7"..., 4000) = 4000
read(4, "\370\377\370\377\360\377\370\377\370\377\360\377\370\377"..., 4000) = 4000
write(1, "10,0,6,1,254,2,255,0,0,-1,622.06"..., 4610,0,6,1,254,2,255,0,0,-1,622.067139,0.131622
) = 46
ioctl(4, 0x40094a3f, 0x5042f2)          = 0
ioctl(4, 0x40044a03, 0x7ffff888841c)    = 0
write(4, "\0\0\20)r2\230\34)\3\315\373#\2\231\5\277\1\206\0\211\7"..., 4000) = 4000
read(4, "\370\377\360\377\370\377\360\377\360\377\370\377\360\377"..., 4000) = 4000
write(1, "3,255,255,0,1,0,0,0,0,-1,669.671"..., 453,255,255,0,1,0,0,0,0,-1,669.671387,0.141694
) = 45
ioctl(4, 0x40094a3f, 0x5042fb)          = 0
ioctl(4, 0x40044a03, 0x7ffff888841c)    = 0
write(4, "\0\0\20)r2\230\34)\3\315\373#\2\231\5\277\1\206\0\211\7"..., 4000) = 4000
read(4, "\360\377\370\377\360\377\360\377\370\377\360\377\370\377"..., 4000) = 4000
write(1, "3,1,253,253,2,255,0,0,0,-1,715.0"..., 473,1,253,253,2,255,0,0,0,-1,715.086426,0.151303
) = 47
ioctl(4, 0x40094a3f, 0x504304)          = 0
ioctl(4, 0x40044a03, 0x7ffff888841c)    = 0
write(4, "\0\0\20)r2\230\34)\3\315\373#\2\231\5\277\1\206\0\211\7"..., 4000) = 4000
read(4, "\370\377\370\377\360\377\360\377\360\377\360\377\360\377"..., 4000) = 4000
write(1, "9,254,251,255,2,0,1,0,0,-1,901.1"..., 479,254,251,255,2,0,1,0,0,-1,901.165100,0.190675
) = 47
ioctl(4, 0x40094a3f, 0x50430d)          = 0
ioctl(4, 0x40044a03, 0x7ffff888841c)    = 0
write(4, "\0\0\20)r2\230\34)\3\315\373#\2\231\5\277\1\206\0\211\7"..., 4000) = 4000
read(4, "\370\377\360\377\360\377\360\377\360\377\370\377\370\377"..., 4000) = 4000
write(1, "5,3,251,250,2,254,0,0,255,-1,907"..., 495,3,251,250,2,254,0,0,255,-1,907.669250,0.192052
) = 49
ioctl(4, 0x40094a3f, 0x504316)          = 0
ioctl(4, 0x40044a03, 0x7ffff888841c)    = 0
write(4, "\0\0\20)r2\230\34)\3\315\373#\2\231\5\277\1\206\0\211\7"..., 4000) = 4000
read(4, 0x7ffff8887220, 4000)           = -1 ERRNO_500 (Unknown error 500)
write(2, "Could not fill input buffer - go"..., 64Could not fill input buffer - got -1 bytes, expected 4000 bytes
) = 64
close(4)                                = 0
write(1, "Failure!\n", 9Failure!
)               = 9
close(3)                                = 0
write(1, "Unable to tune 1 devices, even t"..., 64Unable to tune 1 devices, even though those devices are present
) = 64
write(5, "0,0,0,0,0,0,0,0,0,-1,1039.489258"..., 276) = 276
munmap(0x2b7ab2239000, 4096)            = 0
munmap(0x2b7ab2238000, 4096)            = 0
exit_group(-1)                          = ?
Process 4523 detached