execve("./pthread", ["./pthread"], [/* 15 vars */]) = 0
brk(0)                                  = 0x10010fb0
cacheflush(0x7ffffbb8, 0x28, 0x3)       = 0
cacheflush(0x7ffffb40, 0x28, 0x3)       = 0
mmap(ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
)                                  = 715829248
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
cacheflush(0x7ffffaa8, 0x28, 0x3)       = 0
open("/etc/ld.so.cache", O_RDONLY)      = -1 ENOENT (No such file or directory)
open("/lib/libpthread.so.0", O_RDONLY)  = 3
mmap(ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
)                                  = 715833344
munmap(0x2aaac000, 4096)                = 0
mmap(ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
)                                  = 715833344
mprotect(0x2aab7000, 281200, PROT_NONE) = 0
mmap(NULL, 0, PROT_NONE, MAP_FILE, 0, 0) = 0x2aaf6000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
mmap(ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
)                                  = 716161024
munmap(0x2aafc000, 4096)                = 0
mmap(ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
)                                  = 716161024
mprotect(0x2abb3000, 330496, PROT_NONE) = 0
mmap(0x18f, 0, 0x8f380000, MAP_SHARED|MAP_FIXED|MAP_RENAME|0x180, 0, 0x8f380000) = 0x2abf2000
mmap(0x8f364045, 87, PROT_NONE, MAP_FILE|0x8f380000, 121, 0ptrace: umoven: Input/output error
) = 717201408
close(3)                                = 0
mprotect(0x2aafc000, 749568, PROT_READ|PROT_WRITE) = 0
mprotect(0x2aafc000, 749568, PROT_READ|PROT_EXEC) = 0
mprotect(0x2aaac000, 45056, PROT_READ|PROT_WRITE) = 0
mprotect(0x2aaac000, 45056, PROT_READ|PROT_EXEC) = 0
personality(PER_LINUX)                  = 0
getpid()                                = 92
getpid()                                = 92
sigaction(SIGUSR1, {0x10000000, [TRAP EMT BUS SEGV SYS ALRM USR2 CHLD WINCH IO TSTP TTIN VTALRM XCPU], 0}, NULL, 0x5c) = 0
sigaction(SIGUSR2, {SIG_DFL}, NULL, 0x5c) = 0
sigprocmask(SIG_BLOCK, [USR1], NULL)    = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(3, 0), ...}) = 0
mmap(ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
)                                  = 717242368
ioctl(1, TCGETS, {B9600 opost isig icanon echo ...}) = 0
write(1, "master : before create a thread "..., 37master : before create a thread ... 
) = 37
brk(0)                                  = 0x10010fb0
brk(0x10012fa8)                         = 0x10012fa8
brk(0x10013000)                         = 0x10013000
pipe([717225552, 0])                    = 3
clone(child_stack=0x10012f78, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND) = 93
sigprocmask(SIG_SETMASK, NULL, [USR1])  = 0
write(4, "\0\220\257*\0\0\0\0\0\0\0\0\220\v@\0\0\0\0\0\0\200\0\0"..., 148) = 148
sigprocmask(SIG_SETMASK, NULL, [USR1])  = 0
sigsuspend(~[HUP INT QUIT ILL EMT FPE BUS] <unfinished ...>
--- SIGUSR1 (User defined signal 1) ---
<... sigsuspend resumed> )              = -1 EINTR (Interrupted system call)
sigreturn()                             = ? (mask now [TRAP FPE BUS SEGV SYS ALRM TERM CHLD PWR PROF])
--- SIGBUS (Bus error) ---
+++ killed by SIGBUS +++
sh-2.03# slave : myfunc runs.