root@OpenWrt:/# tc qdisc show
Segmentation fault
root@OpenWrt:/# strace tc qdisc
execve("/usr/sbin/tc", ["tc", "qdisc"], [/* 8 vars */]) = 0
svr4_syscall()                          = -1 ERRNO_4090 (Unknown error 4090)
stat("/etc/ld.so.cache", 0x7f8f6408)    = -1 ENOENT (No such file or directory)
open("/lib/libresolv.so.0", O_RDONLY)   = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=968, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaae000
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\3\0\0004\0\0\0"..., 4096) = 968
old_mmap(NULL, 266240, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaed000
old_mmap(0x2aaed000, 948, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x2aaed000
old_mmap(0x2ab2d000, 968, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x2ab2d000
close(3)                                = 0
munmap(0x2aaae000, 4096)                = 0
open("/lib/libm.so.0", O_RDONLY)        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=60170, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaae000
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\340\25\0\0004\0\0\0"..., 4096) = 4096
old_mmap(NULL, 323584, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2ab2e000
old_mmap(0x2ab2e000, 59788, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x2ab2e000
old_mmap(0x2ab7c000, 2826, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xe000) = 0x2ab7c000
close(3)                                = 0
munmap(0x2aaae000, 4096)                = 0
open("/lib/libdl.so.0", O_RDONLY)       = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=6558, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaae000
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0P\10\0\0004\0\0\0"..., 4096) = 4096
old_mmap(NULL, 270336, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2ab7d000
old_mmap(0x2ab7d000, 6384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x2ab7d000
old_mmap(0x2abbe000, 2462, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x2abbe000
close(3)                                = 0
munmap(0x2aaae000, 4096)                = 0
open("/lib/libgcc_s.so.1", O_RDONLY)    = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=60806, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaae000
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\240\31\0\0004\0\0\0"..., 4096) = 4096
old_mmap(NULL, 323584, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2abbf000
old_mmap(0x2abbf000, 58700, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x2abbf000
old_mmap(0x2ac0d000, 3462, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xe000) = 0x2ac0d000
close(3)                                = 0
munmap(0x2aaae000, 4096)                = 0
open("/lib/libc.so.0", O_RDONLY)        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=389931, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaae000
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0 \272\0\0004\0\0\0"..., 4096) = 4096
old_mmap(NULL, 671744, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2ac0e000
old_mmap(0x2ac0e000, 385332, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x2ac0e000
old_mmap(0x2acac000, 4907, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x5e000) = 0x2acac000
old_mmap(0x2acae000, 16072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2acae000
close(3)                                = 0
munmap(0x2aaae000, 4096)                = 0
open("/lib/libc.so.0", O_RDONLY)        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=389931, ...}) = 0
close(3)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=389931, ...}) = 0
close(3)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=389931, ...}) = 0
close(3)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=389931, ...}) = 0
close(3)                                = 0
ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
brk(0)                                  = 0x476000
brk(0x477000)                           = 0x477000
open("/proc/net/psched", O_RDONLY)      = 3
ioctl(3, TIOCNXCL, 0x7f8f63f8)          = -1 ENOTTY (Inappropriate ioctl for device)
brk(0x478000)                           = 0x478000
read(3, "000003e8 00000400 000f4240 3b9ac"..., 4096) = 36
close(3)                                = 0
socket(PF_NETLINK, SOCK_RAW, 0)         = 3
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [32768], 4) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [32768], 4) = 0
bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(3, {sa_family=AF_NETLINK, pid=2344, groups=00000000}, [12]) = 0
time(NULL)                              = 52
sendto(3, "\24\0\0\0\22\0\1\0035\0\0\0\0\0\0\0\0\0\0\0", 20, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) =
20
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\360\0\0\0\20\0\2\0005\0\0\0(\t
\0\0\0\0\4\3\1\0\0\0I\0\1\0\0\0\0\0"..., 16384}], msg_controllen=0, msg_flags=0}, 0) = 2392
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\24\0\0\0\3\0\2\0005\0\0\0(\t\0
\0\0\0\0\0\1\0\0\0I\0\1\0\0\0\0\0"..., 16384}], msg_controllen=0, msg_flags=0}, 0) = 20
sendmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(2)=[{"$\0\0\0&\0\1\0036\0\0\0\0\0\0\0
", 16}, {"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 20}], msg_controllen=0, msg_flags=0}, 0) = 36
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\270\0\0\0$\0\2\0006\0\0\0(\t\0
\0\0\0\0\0\2\0\0\0\0\0\0\0\377\377\377\377"..., 16384}], msg_controllen=0, msg_flags=0}, 0) = 184
open("/usr/lib/tc/q_prio.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/lib/q_prio.so", O_RDONLY)        = -1 ENOENT (No such file or directory)
open("/lib/q_prio.so", O_RDONLY)        = -1 ENOENT (No such file or directory)
open("/usr/lib/q_prio.so", O_RDONLY)    = -1 ENOENT (No such file or directory)
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
root@OpenWrt:/#