root>strace taskset -cp 3

1265

execve("/usr/bin/taskset", ["taskset",

"-cp", "3", "1265"], []) = 0

brk(0)  = 0x606000

mmap(NULL, 4096, PROT_READ|PROT_WRITE,

MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f81040ec000

access("/etc/ld.so.preload", R_OK)

= -1 ENOENT

(No such file or directory)

open("tls/x86_64/libc.so.6",

O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or

directory)

open("tls/libc.so.6",

O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or

directory)

open("x86_64/libc.so.6",

O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or

directory)

open("libc.so.6", O_RDONLY|O_CLOEXEC)

= -1 ENOENT (No such file or

directory)

open("/usr/local/lib/tls/x86_64/libc.so.6",

O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or

directory)

stat("/usr/local/lib/tls/x86_64",

0x7fff5293b8e0) = -1 ENOENT (No such file or

directory)

open("/usr/local/lib/tls/libc.so.6",

O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or

directory)

stat("/usr/local/lib/tls",

0x7fff5293b8e0) = -1 ENOENT (No such file or

directory)

open("/usr/local/lib/x86_64/libc.so.6",

O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or

directory)

stat("/usr/local/lib/x86_64",

0x7fff5293b8e0) = -1 ENOENT (No such file or

directory)

open("/usr/local/lib/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\312%\2\0\0\0\0\0"...,

832) = 832

fstat(3, {st_mode=S_IFREG|0755,

st_size=1701912, ...}) = 0

mmap(NULL, 3808584, PROT_READ|PROT_EXEC,

MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8103b2b000

mprotect(0x7f8103cc4000, 2093056,

PROT_NONE) = 0

mmap(0x7f8103ec3000, 24576,

PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3,

0x198000) = 0x7f8103ec3000

mmap(0x7f8103ec9000, 15688,

PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) =

0x7f8103ec9000

close(3)  =

0

mmap(NULL, 4096, PROT_READ|PROT_WRITE,

MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f81040eb000

mmap(NULL, 4096, PROT_READ|PROT_WRITE,

MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f81040ea000

mmap(NULL, 4096, PROT_READ|PROT_WRITE,

MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f81040e9000

arch_prctl(ARCH_SET_FS, 0x7f81040ea700)

= 0

mprotect(0x7f8103ec3000, 16384,

PROT_READ) = 0

mprotect(0x604000, 4096, PROT_READ)

= 0

mprotect(0x7f81040ed000, 4096,

PROT_READ) = 0

brk(0)  = 0x606000

brk(0x627000)  =

0x627000

sched_getaffinity(0, 256, {60, 0, 0, 0,

0, 0, 0, 0}) = 64

sched_getaffinity(1265, 64, {60, 0, 0,

0, 0, 0, 0, 0}) = 64

fstat(1, {st_mode=S_IFCHR|0620,

st_rdev=makedev(136, 3), ...}) = 0

mmap(NULL, 4096, PROT_READ|PROT_WRITE,

MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f81040e8000

write(1, "pid 1265's current affinity

list"..., 38pid 1265's current affinity list: 5,6

) = 38

getpid()  =

24373

sched_getaffinity(24373, 128, {60, 0, 0,

0, 0, 0, 0, 0}) = 64

sched_setaffinity(1265, 64, {8, 0, 0,

0, 0, 0, 0, 0}) = -1 EINVAL (Invalid argument)

write(2, "taskset: ", 9taskset: )

= 9

write(2, "failed to set pid 1265's

affinit"..., 33failed to set pid 1265's affinity) = 33

write(2, ": ", 2: )  = 2

write(2, "Invalid argument\n", 17Invalid

argument

)  = 17

exit_group(1)  =

?

+++ exited with 1 +++