# strace dahdi_cfg
execve("/usr/sbin/dahdi_cfg", ["dahdi_cfg"], [/* 40 vars */]) = 0
brk(0)                                  = 0x80ab000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=132660, ...}) = 0
mmap2(NULL, 132660, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7ef4000
close(3)                                = 0
open("/lib/libm.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@4\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=180649, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7ef3000
mmap2(NULL, 151680, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7ecd000
mmap2(0xb7ef1000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23) = 0xb7ef1000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360d\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1575187, ...}) = 0
mmap2(NULL, 1357360, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d81000
mmap2(0xb7ec7000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x146) = 0xb7ec7000
mmap2(0xb7eca000, 9776, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7eca000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7d80000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7d806c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb7ec7000, 4096, PROT_READ)   = 0
munmap(0xb7ef4000, 132660)              = 0
open("/dev/dahdi/ctl", O_RDWR)          = 3
brk(0)                                  = 0x80ab000
brk(0x80cc000)                          = 0x80cc000
open("/etc/dahdi/system.conf", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=11303, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f14000
read(4, "#\n# DAHDI Configuration File\n#\n#"..., 4096) = 4096
read(4, "eq in Hz, rxbw is rx notch (and "..., 4096) = 4096
read(4, "quency\n# in tenths of hertz, for"..., 4096) = 3111
read(4, "", 4096)                       = 0
ioctl(3, 0x4048da51, 0x8096660)         = -1 EINVAL (Invalid argument)
ioctl(3, 0xc048da50 <unfinished ...>
+++ killed by SIGSEGV +++
Process 11022 detached