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Re: ptrace PEEKTEXT IO error?!
> >
> > It seems ok at reading memory from addresses on the heap and stack --
> > but it barfs at reading memory from the text segment. [snip]
> No, this is most likely a kernel bug. This is mapped code, right, not
> some mmaped device file (which is not generally accessible by ptrace)?
The code I'm trying to read is an ordinary subroutine in an ordinary C
file. The program does call a library handling infiniband network
cards, and there are loads of kernel modules on this machine looking
after that.
There are some mmap commands in the strace output -- they seem to be in
the wrong range to be causing the trouble (I've attached an strace log
of the binary, those mmap commands might make sense to someone..) - FYI,
the memory address it can't read is 0x401e18 (4202008), which is right
in the middle of my ordinary code..
Cheers
David
--
David Lecomber
CTO Allinea Software
Tel: +44 1926 623231
Fax: +44 1926 623232
execve("/opt/mpi/bin/mpirun", ["mpirun", "-np", "1", "/usr/bin/strace", "-f", "./mpi"], [/* 47 vars */]) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
execve("./mpi", ["./mpi"], [/* 56 vars */]) = 0
uname({sys="Linux", node="snode164", ...}) = 0
brk(0) = 0x54c000
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaaaabf000
open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/opt/intel_cce_81-027/lib/tls/x86_64/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/intel_cce_81-027/lib/tls/x86_64", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/opt/intel_cce_81-027/lib/tls/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/intel_cce_81-027/lib/tls", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/opt/intel_cce_81-027/lib/x86_64/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/intel_cce_81-027/lib/x86_64", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/opt/intel_cce_81-027/lib/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/opt/intel_cce_81-027/lib", {st_mode=S_IFDIR|0755, st_size=944, ...}) = 0
open("/apps/prod/openib/x86_64/driver/infinihost/lib/tls/x86_64/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/apps/prod/openib/x86_64/driver/infinihost/lib/tls/x86_64", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/tls/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/apps/prod/openib/x86_64/driver/infinihost/lib/tls", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/x86_64/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/apps/prod/openib/x86_64/driver/infinihost/lib/x86_64", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/apps/prod/openib/x86_64/driver/infinihost/lib", {st_mode=S_IFDIR|0755, st_size=280, ...}) = 0
open("/home/rzsunhome/rz51/rz51031/tls/x86_64/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/home/rzsunhome/rz51/rz51031/tls/x86_64", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/home/rzsunhome/rz51/rz51031/tls/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/home/rzsunhome/rz51/rz51031/tls", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/home/rzsunhome/rz51/rz51031/x86_64/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/home/rzsunhome/rz51/rz51031/x86_64", 0x7fffffffea10) = -1 ENOENT (No such file or directory)
open("/home/rzsunhome/rz51/rz51031/libdl.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/home/rzsunhome/rz51/rz51031", {st_mode=S_IFDIR|0700, st_size=1536, ...}) = 0
open("/etc/ld.so.cache", O_RDONLY) = 6
fstat(6, {st_mode=S_IFREG|0644, st_size=10801, ...}) = 0
mmap(NULL, 10801, PROT_READ, MAP_PRIVATE, 6, 0) = 0x2aaaaaac0000
close(6) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib64/libdl.so.2", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\35\0"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0644, st_size=12248, ...}) = 0
mmap(NULL, 1058904, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaaabc2000
mprotect(0x2aaaaabc5000, 1046616, PROT_NONE) = 0
mmap(0x2aaaaacc2000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaaacc2000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libmtl_common.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libmtl_common.so", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\n\0"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0755, st_size=10894, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaaacc5000
mmap(NULL, 1056488, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaaacc6000
mprotect(0x2aaaaacc8000, 1048296, PROT_NONE) = 0
mmap(0x2aaaaadc6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaaadc6000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libvapi.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libvapi.so", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\200"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0755, st_size=232369, ...}) = 0
mmap(NULL, 1252944, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaaadc8000
mprotect(0x2aaaaadf2000, 1080912, PROT_NONE) = 0
mmap(0x2aaaaaec8000, 204800, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaaaec8000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libmosal.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libmosal.so", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320(\0\0"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0755, st_size=34902, ...}) = 0
mmap(NULL, 1074632, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaaaefa000
mprotect(0x2aaaaaf00000, 1050056, PROT_NONE) = 0
mmap(0x2aaaaaffa000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaaaffa000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libmpga.so", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libmpga.so", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\32\0\0"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0755, st_size=35636, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaab001000
mmap(NULL, 1078456, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaab002000
mprotect(0x2aaaab008000, 1053880, PROT_NONE) = 0
mmap(0x2aaaab102000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaab102000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libpthread.so.0", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libpthread.so.0", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/rzsunhome/rz51/rz51031/libpthread.so.0", O_RDONLY) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib64/libpthread.so.0", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260S\0\0"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0644, st_size=92805, ...}) = 0
mmap(NULL, 1654688, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaab10a000
mprotect(0x2aaaab118000, 1597344, PROT_NONE) = 0
mmap(0x2aaaab20a000, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaab20a000
mmap(0x2aaaab21a000, 540576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2aaaab21a000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/rzsunhome/rz51/rz51031/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib64/libm.so.6", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`@\0\0\0"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0644, st_size=563296, ...}) = 0
mmap(NULL, 1609160, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaab29e000
mprotect(0x2aaaab321000, 1072584, PROT_NONE) = 0
mmap(0x2aaaab39e000, 561152, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaab39e000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libgcc_s.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libgcc_s.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/rzsunhome/rz51/rz51031/libgcc_s.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib64/libgcc_s.so.1", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\37\0\0"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0644, st_size=44768, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaab427000
mmap(NULL, 1091744, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaab428000
mprotect(0x2aaaab432000, 1050784, PROT_NONE) = 0
mmap(0x2aaaab528000, 45056, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0) = 0x2aaaab528000
close(6) = 0
open("/opt/intel_cce_81-027/lib/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/apps/prod/openib/x86_64/driver/infinihost/lib/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/rzsunhome/rz51/rz51031/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib64/libc.so.6", O_RDONLY) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\332\1"..., 640) = 640
fstat(6, {st_mode=S_IFREG|0644, st_size=1292528, ...}) = 0
mmap(NULL, 2352776, PROT_READ|PROT_EXEC, MAP_PRIVATE, 6, 0) = 0x2aaaab533000
mprotect(0x2aaaab64d000, 1197704, PROT_NONE) = 0
mmap(0x2aaaab733000, 237568, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 6, 0x100000) = 0x2aaaab733000
mmap(0x2aaaab76d000, 18056, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2aaaab76d000
close(6) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaab772000
arch_prctl(0x1002, 0x2aaaab772540) = 0
munmap(0x2aaaaaac0000, 10801) = 0
getpid() = 22774
rt_sigaction(SIGRTMIN, {0x2aaaab112980, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x2aaaab112a60, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGRT_2, {0x2aaaab113290, [], 0x4000000}, NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [RTMIN], NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RT_1], NULL, 8) = 0
_sysctl({{CTL_KERN, KERN_VERSION}, 2, 0x7ffffffff010, 36, (nil), 0}) = 0
open("/dev/mosal", O_RDONLY) = 6
brk(0) = 0x54c000
brk(0x56d000) = 0x56d000
brk(0) = 0x56d000
uname({sys="Linux", node="snode164", ...}) = 0
open("/dev/vipkl_dev", O_RDONLY) = 7
ioctl(7, 0x80087801, 0x7ffffffff1a0) = 0
ioctl(7, 0x80087801, 0x7ffffffff180) = 0
ioctl(7, 0x80087801, 0x7ffffffff160) = 0
ioctl(7, 0x80087801, 0x7ffffffff1b0) = 0
ioctl(7, 0x80087801, 0x7ffffffff120) = 0
ioctl(7, 0x80087801, 0x7ffffffff0a0) = 0
ioctl(7, 0x80087801, 0x7ffffffff100) = 0
ioctl(7, 0x80087801, 0x7ffffffff0c0) = 0
ioctl(7, 0x80087801, 0x7ffffffff0c0) = 0
getrlimit(0x3, 0x7fffffffeeb0) = 0
pipe([8, 9]) = 0
clone(Process 22775 attached
child_stack=0x560040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND) = 22775
[pid 22774] write(9, "\300\360\377\377\377\177\0\0\5\0\0\0\252*\0\0\260|B\253"..., 168 <unfinished ...>
[pid 22775] arch_prctl(0x1002, 0x560100 <unfinished ...>
[pid 22774] <... write resumed> ) = 168
[pid 22775] <... arch_prctl resumed> ) = 0
[pid 22774] rt_sigprocmask(SIG_SETMASK, NULL, <unfinished ...>
[pid 22775] rt_sigprocmask(SIG_SETMASK, ~[TRAP RT_1], <unfinished ...>
[pid 22774] <... rt_sigprocmask resumed> [RTMIN], 8) = 0
[pid 22775] <... rt_sigprocmask resumed> NULL, 8) = 0
[pid 22774] write(9, "@%w\253\252*\0\0\0\0\0\0\252*\0\0000\361\377\377\377\177"..., 168 <unfinished ...>
[pid 22775] read(8, <unfinished ...>
[pid 22774] <... write resumed> ) = 168
[pid 22775] <... read resumed> "\300\360\377\377\377\177\0\0\5\0\0\0\252*\0\0\260|B\253"..., 168) = 168
[pid 22774] rt_sigprocmask(SIG_SETMASK, NULL, <unfinished ...>
[pid 22775] poll( <unfinished ...>
[pid 22774] <... rt_sigprocmask resumed> [RTMIN], 8) = 0
[pid 22775] <... poll resumed> [{fd=8, events=POLLIN, revents=POLLIN}], 1, 2000) = 1
[pid 22774] rt_sigsuspend([] <unfinished ...>
[pid 22775] getppid() = 22774
[pid 22775] read(8, "@%w\253\252*\0\0\0\0\0\0\252*\0\0000\361\377\377\377\177"..., 168) = 168
[pid 22775] mmap(NULL, 2097152, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaab773000
[pid 22775] mprotect(0x2aaaab773000, 4096, PROT_NONE) = 0
[pid 22775] clone(Process 22776 attached
child_stack=0x2aaaab972ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGRT_1) = 22776
[pid 22775] kill(22774, SIGRTMIN <unfinished ...>
[pid 22774] --- SIGRTMIN (Unknown signal 32) @ 0 (0) ---
[pid 22775] <... kill resumed> ) = 0
[pid 22774] <... rt_sigsuspend resumed> ) = -1 EINTR (Interrupted system call)
[pid 22775] poll( <unfinished ...>
[pid 22774] rt_sigreturn(0x20) = -1 EINTR (Interrupted system call)
[pid 22776] arch_prctl(0x1002, 0x560840) = 0
[pid 22776] getpid() = 22776
[pid 22776] rt_sigprocmask(SIG_SETMASK, [RTMIN], NULL, 8) = 0
[pid 22776] sched_setscheduler(0x58f8, 0, 0x5609e4) = 0
[pid 22776] ioctl(7, 0x80087801, 0x2aaaab972e40) = 0
[pid 22774] rt_sigprocmask(SIG_SETMASK, NULL, <unfinished ...>
[pid 22776] ioctl(7, 0x80087801 <unfinished ...>
[pid 22774] <... rt_sigprocmask resumed> [RTMIN], 8) = 0
[pid 22774] write(9, "@%w\253\252*\0\0\0\0\0\0\252*\0\0000\361\377\377\377\177"..., 168 <unfinished ...>
[pid 22775] <... poll resumed> [{fd=8, events=POLLIN, revents=POLLIN}], 1, 2000) = 1
[pid 22774] <... write resumed> ) = 168
[pid 22775] getppid( <unfinished ...>
[pid 22774] rt_sigprocmask(SIG_SETMASK, NULL, <unfinished ...>
[pid 22775] <... getppid resumed> ) = 22774
[pid 22775] read(8, "@%w\253\252*\0\0\0\0\0\0\252*\0\0000\361\377\377\377\177"..., 168) = 168
[pid 22774] <... rt_sigprocmask resumed> [RTMIN], 8) = 0
[pid 22775] mmap(NULL, 2097152, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid 22774] rt_sigsuspend([] <unfinished ...>
[pid 22775] <... mmap resumed> ) = 0x2aaaab973000
[pid 22775] mprotect(0x2aaaab973000, 4096, PROT_NONE) = 0
[pid 22775] clone(Process 22777 attached
child_stack=0x2aaaabb72ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGRT_1) = 22777
[pid 22775] kill(22774, SIGRTMIN <unfinished ...>
[pid 22777] arch_prctl(0x1002, 0x560f20 <unfinished ...>
[pid 22774] --- SIGRTMIN (Unknown signal 32) @ 0 (0) ---
[pid 22775] <... kill resumed> ) = 0
[pid 22777] <... arch_prctl resumed> ) = 0
[pid 22774] <... rt_sigsuspend resumed> ) = -1 EINTR (Interrupted system call)
[pid 22775] poll( <unfinished ...>
[pid 22777] getpid( <unfinished ...>
[pid 22774] rt_sigreturn(0x20) = -1 EINTR (Interrupted system call)
[pid 22777] <... getpid resumed> ) = 22777
[pid 22777] rt_sigprocmask(SIG_SETMASK, [RTMIN], NULL, 8) = 0
[pid 22777] sched_setscheduler(0x58f9, 0, 0x5610c4) = 0
[pid 22777] ioctl(7, 0x80087801, 0x2aaaabb72e40) = 0
[pid 22777] ioctl(7, 0x80087801 <unfinished ...>
[pid 22774] brk(0) = 0x56d000
[pid 22774] brk(0x5c2000) = 0x5c2000
[pid 22774] brk(0) = 0x5c2000
[pid 22774] brk(0x5e4000) = 0x5e4000
[pid 22774] brk(0) = 0x5e4000
[pid 22774] brk(0x606000) = 0x606000
[pid 22774] brk(0) = 0x606000
[pid 22774] brk(0x628000) = 0x628000
[pid 22774] brk(0) = 0x628000
[pid 22774] brk(0x64a000) = 0x64a000
[pid 22774] brk(0) = 0x64a000
[pid 22774] brk(0x66c000) = 0x66c000
[pid 22774] brk(0) = 0x66c000
[pid 22774] brk(0x68e000) = 0x68e000
[pid 22774] brk(0) = 0x68e000
[pid 22774] brk(0x6b0000) = 0x6b0000
[pid 22774] ioctl(7, 0x80087801, 0x7ffffffff1b0) = 0
[pid 22774] ioctl(7, 0x80087801, 0x7fffffffefd0) = 0
[pid 22774] brk(0) = 0x6b0000
[pid 22774] brk(0x8c5000) = 0x8c5000
[pid 22774] ioctl(7, 0x80087801, 0x7fffffffefc0) = 0
[pid 22774] ioctl(7, 0x80087801, 0x7ffffffff1b0) = 0
[pid 22774] getpid() = 22774
[pid 22774] open("/etc/resolv.conf", O_RDONLY) = 10
[pid 22774] fstat(10, {st_mode=S_IFREG|0644, st_size=79, ...}) = 0
[pid 22774] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaabb75000
[pid 22774] read(10, "search rrze.uni-erlangen.de\nname"..., 4096) = 79
[pid 22774] read(10, "", 4096) = 0
[pid 22774] close(10) = 0
[pid 22774] munmap(0x2aaaabb75000, 4096) = 0
[pid 22774] socket(PF_UNIX, SOCK_STREAM, 0) = 10
[pid 22774] connect(10, {sa_family=AF_UNIX, path="/var/run/.nscd_socket"}, 110) = -1 ENOENT (No such file or directory)
[pid 22774] close(10) = 0
[pid 22774] open("/etc/nsswitch.conf", O_RDONLY) = 10
[pid 22774] fstat(10, {st_mode=S_IFREG|0644, st_size=425, ...}) = 0
[pid 22774] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaabb75000
[pid 22774] read(10, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 425
[pid 22774] read(10, "", 4096) = 0
[pid 22774] close(10) = 0
[pid 22774] munmap(0x2aaaabb75000, 4096) = 0
[pid 22774] open("/opt/intel_cce_81-027/lib/libnss_files.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 22774] open("/apps/prod/openib/x86_64/driver/infinihost/lib/libnss_files.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 22774] open("/home/rzsunhome/rz51/rz51031/libnss_files.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 22774] open("/etc/ld.so.cache", O_RDONLY) = 10
[pid 22774] fstat(10, {st_mode=S_IFREG|0644, st_size=10801, ...}) = 0
[pid 22774] mmap(NULL, 10801, PROT_READ, MAP_PRIVATE, 10, 0) = 0x2aaaabb75000
[pid 22774] close(10) = 0
[pid 22774] access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
[pid 22774] open("/lib64/libnss_files.so.2", O_RDONLY) = 10
[pid 22774] read(10, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340%\0\0"..., 640) = 640
[pid 22774] fstat(10, {st_mode=S_IFREG|0644, st_size=44736, ...}) = 0
[pid 22774] mmap(NULL, 1092296, PROT_READ|PROT_EXEC, MAP_PRIVATE, 10, 0) = 0x2aaaabb78000
[pid 22774] mprotect(0x2aaaabb81000, 1055432, PROT_NONE) = 0
[pid 22774] mmap(0x2aaaabc78000, 45056, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 10, 0) = 0x2aaaabc78000
[pid 22774] close(10) = 0
[pid 22774] munmap(0x2aaaabb75000, 10801) = 0
[pid 22774] open("/etc/host.conf", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 22774] open("/etc/hosts", O_RDONLY) = 10
[pid 22774] fcntl(10, F_GETFD) = 0
[pid 22774] fcntl(10, F_SETFD, FD_CLOEXEC) = 0
[pid 22774] fstat(10, {st_mode=S_IFREG|0644, st_size=74, ...}) = 0
[pid 22774] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaabb75000
[pid 22774] read(10, "127.0.0.1\tlocalhost\n192.168.80.1"..., 4096) = 74
[pid 22774] close(10) = 0
[pid 22774] munmap(0x2aaaabb75000, 4096) = 0
[pid 22774] socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 10
[pid 22774] socket(PF_UNIX, SOCK_STREAM, 0) = 11
[pid 22774] connect(11, {sa_family=AF_UNIX, path="/var/run/.nscd_socket"}, 110) = -1 ENOENT (No such file or directory)
[pid 22774] close(11) = 0
[pid 22774] open("/etc/hosts", O_RDONLY) = 11
[pid 22774] fcntl(11, F_GETFD) = 0
[pid 22774] fcntl(11, F_SETFD, FD_CLOEXEC) = 0
[pid 22774] fstat(11, {st_mode=S_IFREG|0644, st_size=74, ...}) = 0
[pid 22774] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aaaabb75000
[pid 22774] read(11, "127.0.0.1\tlocalhost\n192.168.80.1"..., 4096) = 74
[pid 22774] close(11) = 0
[pid 22774] munmap(0x2aaaabb75000, 4096) = 0
[pid 22774] connect(10, {sa_family=AF_INET, sin_port=htons(35556), sin_addr=inet_addr("192.168.80.164")}, 16) = 0
[pid 22774] write(10, "\2\0\0\0", 4) = 4
[pid 22774] write(10, "\0\0\0\0", 4) = 4
[pid 22774] write(10, "\10\0\0\0", 4) = 4
[pid 22774] write(10, "!\1\0\0\300\250P\244", 8) = 8
[pid 22774] read(10, "!\1\0\0!\1\0\0\300\250P\244", 12) = 12
[pid 22774] brk(0) = 0x8c5000
[pid 22774] brk(0x4361000) = 0x4361000
[pid 22774] ioctl(7, 0x80087801, 0x7fffffffee40) = 0
[pid 22774] write(10, "\0\0\0\0", 4) = 4
[pid 22774] read(10, "\0\0\0\0", 4) = 4
[pid 22774] close(10) = 0
[pid 22774] getuid() = 36231
[pid 22774] open("/tmp/ib_shmem-snode164-36231.tmp", O_RDWR|O_CREAT, 0777) = 10
[pid 22774] ftruncate(10, 1940) = 0
[pid 22774] write(10, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 1940) = 1940
[pid 22774] lseek(10, 0, SEEK_SET) = 0
[pid 22774] fstat(10, {st_mode=S_IFREG|0700, st_size=1940, ...}) = 0
[pid 22774] mmap(NULL, 1940, PROT_READ|PROT_WRITE, MAP_SHARED, 10, 0) = 0x2aaaabb75000
[pid 22774] unlink("/tmp/ib_shmem-snode164-36231.tmp") = 0
[pid 22774] getpid() = 22774
[pid 22774] getpid() = 22774
[pid 22774] write(1, "./ptrace_test 22774 70597968 140"..., 136) = 136
[pid 22774] rt_sigprocmask(SIG_BLOCK, [CHLD], [RTMIN], 8) = 0
[pid 22774] rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
[pid 22774] rt_sigprocmask(SIG_SETMASK, [RTMIN], NULL, 8) = 0
[pid 22774] nanosleep({20, 0}, <unfinished ...>
[pid 22775] <... poll resumed> [{fd=8, events=POLLIN}], 1, 2000) = 0
[pid 22775] getppid() = 22774
[pid 22775] poll(