cgill27
n00b
Joined: 15 Mar 2008
Posts: 23
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 Posted: Mon Aug 04, 2014 11:36 pm Post subject: [solved] Error using new PIE network scheduling algorithm |
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I've compiled PIE "Proportional Integral controller Enhanced" as a module in my 3.14.14 kernel and the module loads fine but tc is not seeing the module.
| Code: |
# lsmod
Module Size Used by
sch_pie 4604 0
sch_fq_codel 7141 0
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| Code: | # tc qdisc add dev eth0 root sch_pie
RTNETLINK answers: No such file or directory
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Here is an strace output of the above command and it looks to me like tc is unable to see the module:
| Code: |
# cat strace.txt
execve("/sbin/tc", ["tc", "qdisc", "add", "dev", "eth0", "root", "sch_pie"], [/* 33 vars */]) = 0
brk(0) = 0x19d1000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f09fd2dc000
access("/etc/ld.so.preload", R_OK) = 0
open("/etc/ld.so.preload", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=29, ...}) = 0
mmap(NULL, 29, PROT_READ|PROT_WRITE, MAP_PRIVATE, 3, 0) = 0x7f09fd2db000
close(3) = 0
munmap(0x7f09fd2db000, 29) = 0
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=60856, ...}) = 0
mmap(NULL, 60856, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f09fd2cd000
close(3) = 0
open("/lib64/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0Pj\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1042640, ...}) = 0
mmap(NULL, 3137848, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f09fcdbe000
mprotect(0x7f09fcebb000, 2097152, PROT_NONE) = 0
mmap(0x7f09fd0bb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xfd000) = 0x7f09fd0bb000
close(3) = 0
open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\17\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=14624, ...}) = 0
mmap(NULL, 2109720, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f09fcbba000
mprotect(0x7f09fcbbc000, 2097152, PROT_NONE) = 0
mmap(0x7f09fcdbc000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f09fcdbc000
close(3) = 0
open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 N\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1724664, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f09fd2cc000
mmap(NULL, 3837016, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f09fc811000
mprotect(0x7f09fc9b0000, 2097152, PROT_NONE) = 0
mmap(0x7f09fcbb0000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19f000) = 0x7f09fcbb0000
mmap(0x7f09fcbb6000, 15448, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f09fcbb6000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f09fd2cb000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f09fd2ca000
arch_prctl(ARCH_SET_FS, 0x7f09fd2cb700) = 0
mprotect(0x7f09fcbb0000, 16384, PROT_READ) = 0
mprotect(0x7f09fcdbc000, 4096, PROT_READ) = 0
mprotect(0x7f09fd0bb000, 4096, PROT_READ) = 0
mprotect(0x640000, 4096, PROT_READ) = 0
mprotect(0x7f09fd2dd000, 4096, PROT_READ) = 0
munmap(0x7f09fd2cd000, 60856) = 0
brk(0) = 0x19d1000
brk(0x19f2000) = 0x19f2000
open("/proc/net/psched", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f09fd2db000
read(3, "000003e8 00000040 000f4240 3b9ac"..., 1024) = 36
close(3) = 0
munmap(0x7f09fd2db000, 4096) = 0
socket(PF_NETLINK, SOCK_RAW, 0) = 3
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [32768], 4) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [1048576], 4) = 0
bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(3, {sa_family=AF_NETLINK, pid=8214, groups=00000000}, [12]) = 0
open("/lib64/tc//q_sch_pie.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
sendto(3, "\34\0\0\0\22\0\1\3\2\27\340S\0\0\0\0\0\0\0\0\10\0\35\0\1\0\0\0", 28, 0, NULL, 0) = 28
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"P\2\0\0\20\0\2\0\2\27\340S\26 \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) = 1200
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\24\0\0\0\3\0\2\0\2\27\340S\26 \0\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(1)=[{"0\0\0\0$\0\5\6\3\27\340S\0\0\0\0\0\0\0\0\2\0\0\0\0\0\0\0\377\377\377\377"..., 48}], msg_controllen=0, msg_flags=0}, 0) = 48
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"D\0\0\0\2\0\0\0\3\27\340S\26 \0\0\376\377\377\3770\0\0\0$\0\5\6\3\27\340S"..., 16384}], msg_controllen=0, msg_flags=0}, 0) = 68
write(2, "RTNETLINK answers: No such file "..., 45RTNETLINK answers: No such file or directory
) = 45
close(3) = 0
exit_group(2) = ?
+++ exited with 2 +++
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This must be the error but I'm not sure what to do next:
"open("/lib64/tc//q_sch_pie.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)"
Any ideas?
Last edited by cgill27 on Wed Aug 06, 2014 12:34 am; edited 3 times in total |
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