Thunderbird stop coming up after world update on Gentoo!!

Here is fe info which help others to investigate this issue and help me :

bhaskar@bhaskar-laptop_08:16:30_Sat Aug 28:~> ls -al /usr/bin/thunderbird
lrwxrwxrwx 1 root root 40 Aug 10 09:22 /usr/bin/thunderbird -> /usr/lib/mozilla-thunderbird/thunderbird

Now if I run the thunderbird from commandline I will get :

bhaskar@bhaskar-laptop_08:41:11_Sat Aug 28:~> /usr/bin/thunderbird
/usr/lib/mozilla-thunderbird/run-mozilla.sh: line 131: 19968 Aborted "$prog" ${1+"$@"}

Now if I run strace on that binary I will get :

bhaskar@bhaskar-laptop_08:42:44_Sat Aug 28:~> sudo /usr/bin/strace -o thunderbird-error /usr/bin/thunderbird

and the output would be:

bhaskar@bhaskar-laptop_08:44:38_Sat Aug 28:~> cat thunderbird-error execve("/usr/bin/thunderbird", ["/usr/bin/thunderbird"], [/* 16 vars */]) = 0 brk(0) = 0x8108000 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77e5000 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=141430, ...}) = 0 mmap2(NULL, 141430, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb77c2000 close(3) = 0 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\320\303\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=273784, ...}) = 0 mmap2(NULL, 273956, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb777f000 mmap2(0xb77bf000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x40) = 0xb77bf000 close(3) = 0 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\0000\n\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=9604, ...}) = 0 mmap2(NULL, 12408, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb777b000 mmap2(0xb777d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb777d000 close(3) = 0 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\20m\1\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1339676, ...}) = 0 mmap2(NULL, 1349928, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7631000 mprotect(0xb7774000, 4096, PROT_NONE) = 0 mmap2(0xb7775000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x143) = 0xb7775000 mmap2(0xb7778000, 10536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7778000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7630000 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb762f000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb7630b20, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 mprotect(0xb7775000, 8192, PROT_READ) = 0 mprotect(0xb777d000, 4096, PROT_READ) = 0 mprotect(0xb77bf000, 8192, PROT_READ) = 0 mprotect(0x80fd000, 4096, PROT_READ) = 0 mprotect(0xb7803000, 4096, PROT_READ) = 0 munmap(0xb77c2000, 141430) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 open("/dev/tty", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 3 close(3) = 0 brk(0) = 0x8108000 brk(0x8129000) = 0x8129000 getuid32() = 0 getgid32() = 0 geteuid32() = 0 getegid32() = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 time(NULL) = 1282965196 open("/proc/meminfo", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77e4000 read(3, "MemTotal: 1023612 kB\nMemF"..., 1024) = 1024 close(3) = 0 munmap(0xb77e4000, 4096) = 0 rt_sigaction(SIGCHLD, {SIG_DFL, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGCHLD, {SIG_DFL, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGQUIT, {SIG_DFL, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGQUIT, {SIG_DFL, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigaction(SIGQUIT, {SIG_IGN, [], 0}, {SIG_DFL, [], 0}, 8) = 0 uname({sys="Linux", node="bhaskar-laptop", ...}) = 0 getcwd("/home/bhaskar", 4096) = 14 getpid() = 20050 getppid() = 20049 gettimeofday({1282965196, 405991}, NULL) = 0 getpgrp() = 20049 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 getrlimit(RLIMIT_NPROC, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 open("/usr/bin/thunderbird", O_RDONLY|O_LARGEFILE) = 3 ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbfc38ca8) = -1 ENOTTY (Inappropriate ioctl for device) _llseek(3, 0, [0], SEEK_CUR) = 0 read(3, "#!/bin/sh\n#\n# * BEGIN LICENS"..., 80) = 80 _llseek(3, 0, [0], SEEK_SET) = 0 getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0 fcntl64(255, F_GETFD) = -1 EBADF (Bad file descriptor) 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=3943, ...}) = 0 _llseek(255, 0, [0], SEEK_CUR) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 read(255, "#!/bin/sh\n#\n# * BEGIN LICENS"..., 3943) = 3943 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 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 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 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 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 _llseek(255, -1795, [2148], SEEK_CUR) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20051 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "/usr/bin\n", 128) = 9 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20051 waitpid(-1, 0xbfc38638, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 read(255, "progbase=basename \"$progname\"\n"..., 3943) = 1795 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 _llseek(255, -1763, [2180], SEEK_CUR) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20052 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "thunderbird\n", 128) = 12 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20052 waitpid(-1, 0xbfc38638, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 read(255, "run_moz=\"$curdir/run-mozilla.sh\""..., 3943) = 1763 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 stat64("/usr/bin/run-mozilla.sh", 0xbfc389ac) = -1 ENOENT (No such file or directory) rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 _llseek(255, -1119, [2824], SEEK_CUR) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20053 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "/home/bhaskar\n", 128) = 14 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20053 waitpid(-1, 0xbfc383f8, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 lstat64("/usr/bin/thunderbird", {st_mode=S_IFLNK|0777, st_size=40, ...}) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20054 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "thunderbird\n", 128) = 12 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20054 waitpid(-1, 0xbfc37d48, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20055 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "/usr/bin\n", 128) = 9 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20055 waitpid(-1, 0xbfc37e68, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 stat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 stat64("/usr/bin", {st_mode=S_IFDIR|0755, st_size=69632, ...}) = 0 chdir("/usr/bin") = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20056 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "/usr/bin\n", 128) = 9 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20056 waitpid(-1, 0xbfc37f28, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 stat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 stat64("/usr/bin", {st_mode=S_IFDIR|0755, st_size=69632, ...}) = 0 chdir("/usr/bin") = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20057 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "/usr/lib/mozilla-thunderbird/thu"..., 128) = 41 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20057 waitpid(-1, 0xbfc37ef8, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20060 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "thunderbird\n", 128) = 12 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20060 waitpid(-1, 0xbfc37fb8, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 stat64("/usr/lib/mozilla-thunderbird/thunderbird", {st_mode=S_IFREG|0755, st_size=3943, ...}) = 0 geteuid32() = 0 getegid32() = 0 getuid32() = 0 getgid32() = 0 access("/usr/lib/mozilla-thunderbird/thunderbird", X_OK) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20061 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "/usr/lib/mozilla-thunderbird\n", 128) = 29 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20061 waitpid(-1, 0xbfc38138, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 stat64("/usr/lib/mozilla-thunderbird/run-mozilla.sh", {st_mode=S_IFREG|0755, st_size=10452, ...}) = 0 geteuid32() = 0 getegid32() = 0 getuid32() = 0 getgid32() = 0 access("/usr/lib/mozilla-thunderbird/run-mozilla.sh", X_OK) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 stat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 stat64("/usr/lib", {st_mode=S_IFDIR|0755, st_size=139264, ...}) = 0 stat64("/usr/lib/mozilla-thunderbird", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 chdir("/usr/lib/mozilla-thunderbird") = 0 pipe([3, 4]) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20062 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGCHLD, {0x8082db0, [], 0}, {0x8082db0, [], 0}, 8) = 0 close(4) = 0 read(3, "/usr/lib/mozilla-thunderbird\n", 128) = 29 read(3, "", 128) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 20062 waitpid(-1, 0xbfc37f28, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) close(3) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 stat64("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 stat64("/home/bhaskar", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 chdir("/home/bhaskar") = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 read(255, "if [ $found = 0 ]; then\n # Chec"..., 3943) = 1119 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [INT CHLD], 8) = 0 rt_sigprocmask(SIG_SETMASK, [INT CHLD], NULL, 8) = 0 _llseek(255, -35, [3908], SEEK_CUR) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7630b88) = 20063 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x80831f0, [], 0}, {SIG_DFL, [], 0}, 8) = 0 waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 134}], 0) = 20063 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, 0xbfc38848, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) rt_sigaction(SIGINT, {SIG_DFL, [], 0}, {0x80831f0, [], 0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 read(255, "exitcode=$?\n\nexit $exitcode\n# EO"..., 3943) = 35 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 exit_group(134) = ?

KIndly throw some light...

Thanks Bhaskar