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[Linux-cluster] RGManager Hanging on shutdown



Hi folks,

I'm having issues with the shutdown of my cluster, background on our cluster is this.

We have 4 Compaq 8500r's with 8 x Xeon 800mhz with 3gb of Ram in each, we are using Xen 3.0.1 to run 16 VM's each with shared access via GFS to a GNBD Raid5 Export.

The last remaining issue i have to work out before we look at Testing and moving to production is this, /etc/init.d/rgmanger hangs when shutting down any node in the cluster, all i get on console is "Waiting for cluster services to stop", i have to kill the process to shutdown the system, this happens on our VM or on Real hardware so i dont think the issue lies with Xen.
Services running on each node are these

root edward:~# cat /proc/cluster/services
Service          Name                              GID LID State     Code
Fence Domain:    "default"                           1   2 run       -
[3 2 1 4 5 6 7 8 9]

DLM Lock Space:  "shared"                            3   3 run       -
[3 2 9]

GFS Mount Group: "shared"                            4   4 run       -
[3 2 9]

User:            "usrm::manager"                     2   5 run       -
[3 2 1 4 5 6 7 8 9]

I cant figure out why this is happening, here is an strace from the shutdown
Any help or tips to fixing this would be great

root edward:~# strace /etc/init.d/rgmanager stop
execve("/etc/init.d/rgmanager", ["/etc/init.d/rgmanager", "stop"], [/* 17 vars */]) = 0
uname({sys="Linux", node="edward", ...}) = 0
brk(0)                                  = 0x80eb000
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f02000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) old_mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f00000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=8432, ...}) = 0
old_mmap(NULL, 8432, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7efd000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libncurses.so.5", O_RDONLY)  = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340\342"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=260524, ...}) = 0
old_mmap(NULL, 265868, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7ebc000 old_mmap(0xb7ef4000, 36864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x37000) = 0xb7ef4000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libdl.so.2", O_RDONLY)       = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\v\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=8016, ...}) = 0
old_mmap(NULL, 10828, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7eb9000 old_mmap(0xb7ebb000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb7ebb000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\306S\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=1131932, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7eb8000 old_mmap(NULL, 1141908, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7da1000 old_mmap(0xb7eb2000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x110000) = 0xb7eb2000 old_mmap(0xb7eb6000, 7316, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7eb6000
close(3)                                = 0
munmap(0xb7efd000, 8432)                = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
open("/dev/tty", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 3
close(3)                                = 0
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=290448, ...}) = 0
mmap2(NULL, 290448, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7d5a000
close(3)                                = 0
brk(0)                                  = 0x80eb000
brk(0x80ec000)                          = 0x80ec000
brk(0x80ed000)                          = 0x80ed000
brk(0x80ee000)                          = 0x80ee000
getuid32()                              = 0
getgid32()                              = 0
geteuid32()                             = 0
getegid32()                             = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
time(NULL)                              = 1139130793
brk(0x80ef000)                          = 0x80ef000
open("/etc/mtab", O_RDONLY)             = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=281, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7d59000
read(3, "/dev/hda1 / ext3 rw 0 0\nproc /pr"..., 4096) = 281
close(3)                                = 0
munmap(0xb7d59000, 4096)                = 0
open("/proc/meminfo", O_RDONLY)         = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7d59000
read(3, "MemTotal:        65728 kB\nMemFre"..., 1024) = 598
close(3)                                = 0
munmap(0xb7d59000, 4096)                = 0
brk(0x80f0000)                          = 0x80f0000
rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_DFL}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_DFL}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_DFL}, 8) = 0
uname({sys="Linux", node="edward", ...}) = 0
brk(0x80f1000)                          = 0x80f1000
stat64("/root", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
getpid()                                = 23624
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/lib/gconv/gconv-modules", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=45568, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7d59000
read(3, "# GNU libc iconv configuration.\n"..., 4096) = 4096
brk(0x80f2000)                          = 0x80f2000
read(3, "lias\tJS//\t\t\tJUS_I.B1.002//\nalias"..., 4096) = 4096
brk(0x80f3000)                          = 0x80f3000
brk(0x80f4000)                          = 0x80f4000
brk(0x80f5000)                          = 0x80f5000
read(3, "ule\tINTERNAL\t\tISO-8859-3//\t\tISO8"..., 4096) = 4096
brk(0x80f6000)                          = 0x80f6000
brk(0x80f7000)                          = 0x80f7000
brk(0x80f8000)                          = 0x80f8000
read(3, "lias\tISO-IR-199//\t\tISO-8859-14//"..., 4096) = 4096
brk(0x80f9000)                          = 0x80f9000
brk(0x80fa000)                          = 0x80fa000
read(3, "\t\tto\t\t\tmodule\t\tcost\nalias\tCSEBCD"..., 4096) = 4096
brk(0x80fb000)                          = 0x80fb000
brk(0x80fc000)                          = 0x80fc000
brk(0x80fd000)                          = 0x80fd000
read(3, "ule\t\tcost\nalias\tCP284//\t\t\tIBM284"..., 4096) = 4096
brk(0x80fe000)                          = 0x80fe000
brk(0x80ff000)                          = 0x80ff000
brk(0x8100000)                          = 0x8100000
read(3, "lias\tCP864//\t\t\tIBM864//\nalias\t86"..., 4096) = 4096
brk(0x8101000)                          = 0x8101000
brk(0x8102000)                          = 0x8102000
brk(0x8103000)                          = 0x8103000
read(3, "module\tIBM937//\t\tINTERNAL\t\tIBM93"..., 4096) = 4096
brk(0x8104000)                          = 0x8104000
brk(0x8105000)                          = 0x8105000
brk(0x8106000)                          = 0x8106000
read(3, "\tEUC-JP//\nalias\tUJIS//\t\t\tEUC-JP/"..., 4096) = 4096
brk(0x8107000)                          = 0x8107000
brk(0x8108000)                          = 0x8108000
read(3, "module\t\tcost\nalias\tISO-IR-143//\t"..., 4096) = 4096
brk(0x8109000)                          = 0x8109000
brk(0x810a000)                          = 0x810a000
brk(0x810b000)                          = 0x810b000
read(3, "-BOX//\nmodule\tISO_10367-BOX//\t\tI"..., 4096) = 4096
brk(0x810c000)                          = 0x810c000
brk(0x810d000)                          = 0x810d000
brk(0x810e000)                          = 0x810e000
read(3, "module\tINTERNAL\t\tEUC-JISX0213//\t"..., 4096) = 512
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0xb7d59000, 4096)                = 0
brk(0x810f000)                          = 0x810f000
open("/usr/lib/gconv/ISO8859-1.so", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`\4\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=5576, ...}) = 0
brk(0x8110000)                          = 0x8110000
old_mmap(NULL, 4368, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d58000 old_mmap(0xb7d59000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb7d59000
close(3)                                = 0
getppid()                               = 23623
getpgrp()                               = 23623
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
open("/etc/init.d/rgmanager", O_RDONLY|O_LARGEFILE) = 3
ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbff1698c) = -1 ENOTTY (Inappropriate ioctl for device)
_llseek(3, 0, [0], SEEK_CUR)            = 0
read(3, "#!/bin/sh\n\nPATH=/usr/local/sbin:"..., 80) = 80
_llseek(3, 0, [0], SEEK_SET)            = 0
getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
dup2(3, 255)                            = 255
close(3)                                = 0
fcntl64(255, F_SETFD, FD_CLOEXEC)       = 0
fcntl64(255, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fstat64(255, {st_mode=S_IFREG|0755, st_size=1319, ...}) = 0
_llseek(255, 0, [0], SEEK_CUR)          = 0
brk(0x8111000)                          = 0x8111000
brk(0x8112000)                          = 0x8112000
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
read(255, "#!/bin/sh\n\nPATH=/usr/local/sbin:"..., 1319) = 1319
brk(0x8113000)                          = 0x8113000
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
stat64("/etc/default/rgmanager", {st_mode=S_IFREG|0644, st_size=19, ...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/etc/default/rgmanager", {st_mode=S_IFREG|0644, st_size=19, ...}) = 0
open("/etc/default/rgmanager", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=19, ...}) = 0
read(3, "# RGMGR_OPTIONS=\"\"\n", 19)   = 19
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
brk(0x8114000)                          = 0x8114000
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
brk(0x8115000)                          = 0x8115000
brk(0x8116000)                          = 0x8116000
brk(0x8117000)                          = 0x8117000
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat64("/usr/local/sbin/clulog", 0xbff14088) = -1 ENOENT (No such file or directory) stat64("/usr/local/bin/clulog", 0xbff14088) = -1 ENOENT (No such file or directory) stat64("/sbin/clulog", 0xbff14088) = -1 ENOENT (No such file or directory) stat64("/bin/clulog", 0xbff14088) = -1 ENOENT (No such file or directory)
stat64("/usr/sbin/clulog", {st_mode=S_IFREG|0755, st_size=6632, ...}) = 0
stat64("/usr/sbin/clulog", {st_mode=S_IFREG|0755, st_size=6632, ...}) = 0
brk(0x8118000)                          = 0x8118000
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23625
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23625
waitpid(-1, 0xbff13dbc, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
write(1, "Stopping cluster service manager"..., 34Stopping cluster service manager:
) = 34
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat64("/usr/local/sbin/start-stop-daemon", 0xbff15128) = -1 ENOENT (No such file or directory) stat64("/usr/local/bin/start-stop-daemon", 0xbff15128) = -1 ENOENT (No such file or directory) stat64("/sbin/start-stop-daemon", {st_mode=S_IFREG|0755, st_size=18520, ...}) = 0 stat64("/sbin/start-stop-daemon", {st_mode=S_IFREG|0755, st_size=18520, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23626
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23626
waitpid(-1, 0xbff14e5c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23627
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23627
waitpid(-1, 0xbff1412c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
write(1, "Waiting for services to stop: ", 30Waiting for services to stop: ) = 30
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23628
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23628
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat64("/usr/local/sbin/sleep", 0xbff13ce8) = -1 ENOENT (No such file or directory) stat64("/usr/local/bin/sleep", 0xbff13ce8) = -1 ENOENT (No such file or directory) stat64("/sbin/sleep", 0xbff13ce8) = -1 ENOENT (No such file or directory)
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23629
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 23629
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbff13a9c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23630
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23630
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23631
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 23631
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbff13a9c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23632
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23632
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23633
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 23633
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbff13a9c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23637
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23637
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23638
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 23638
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbff13a9c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23639
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23639
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23640
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 23640
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbff13a9c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23641
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23641
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23642
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 23642
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbff13a9c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23643
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23643
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23644
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 23644
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbff13a9c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23645
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 23645
waitpid(-1, 0xbff1374c, WNOHANG)        = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigaction(SIGCHLD, {0x8078e75, [], 0}, {0x8078e75, [], 0}, 8) = 0
close(4)                                = 0
read(3, "4519 4478\n", 128)             = 10
read(3, "", 128)                        = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {SIG_DFL}, {0x8077b64, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
stat64("/bin/sleep", {st_mode=S_IFREG|0755, st_size=13920, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork()                                  = 23646
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {0x8077b64, [], 0}, {SIG_DFL}, 8) = 0
waitpid(-1,  <unfinished ...>


Tristram Cheer


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