search for: echild

...22 --- SIGUSR1 (User defined signal 1) @ 0 (0) --- 31556 write(2, "rsync error: error in rsync prot"..., 90 <unfinished ...> 31622 rt_sigaction(SIGUSR1, {SIG_IGN}, NULL, 8) = 0 31622 rt_sigaction(SIGUSR2, {SIG_IGN}, NULL, 8) = 0 31622 wait4(31557, 0x7fffea7a324c, WNOHANG, NULL) = -1 ECHILD (No child processes) 31622 kill(31557, SIGUSR1) = 0 31622 write(2, "rsync error: received SIGUSR1 (c"..., 72) = 72 31622 write(2, "\n", 1) = 1 31622 exit_group(19) = ? 31556 <... write resumed> ) = ? ERESTARTSYS (...

Hi. We sometimes/often get such errors. It occures in main.c/client_run(). I investigated further and found, that the waitpid() in main.c/wait_process() exits with -1, errno = ECHILD, which means "No children". *status can contain garbage in such cases - but not always. It happens under Solaris-2.5.1/SPARC. It (ECHILD) also happens on other Solaris versions - but there *status seems to be always set to/left at 0, so the error slips through. I cannot investigate furth...

...plugin that does the usual pattern of: pid = fork (); ... if (waitpid (pid, NULL, 0) == -1) { perror ("waitpid"); exit (EXIT_FAILURE); } will fail, because the forked subprocess is automatically reaped before waitpid is called, resulting in the wait failing with errno == ECHILD. It is possible to work around this by adding: signal (SIGCHLD, SIG_DFL); to the plugin. However I believe this is a bug in collectd, and it should sanitize signals (and maybe other things) before running plugins. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.c...

...#4 EINTR 24453: sigaction(SIGCLD, 0x00000000, 0xFFBEEA90) = 0 24453: write(6, "\0", 1) = 1 24453: setcontext(0xFFBEEC10) 24453: sigprocmask(SIG_BLOCK, 0xFFBEEFE8, 0xFFBEEFF8) = 0 24453: waitid(P_ALL, 0, 0xFFBEEF00, WEXITED|WTRAPPED|WNOHANG) Err#10 ECHILD 24453: sigprocmask(SIG_SETMASK, 0xFFBEEFF8, 0x00000000) = 0 24453: poll(0xFFBEEF28, 2, -1) = 1 24453: read(4, "\0", 1) = 1 24453: read(4, 0xFFBEEF8F, 1) Err#11 EAGAIN 24453: sigprocmask(SIG_BLOCK, 0xFFBEE...

...sleeping...) no child processes are around: root at XXX:~# ps -ef | grep 26110 root 26110 24012 0 14:50:11 ? 0:00 /usr/local/sbin/sshd root 8136 7433 0 15:15:34 pts/5 0:00 truss -fp 26110 root 8217 7433 0 15:15:55 pts/5 0:00 grep 26110 sending it a SIGCLD to see if ECHILD would have been handled fine (would not :-/). root at XXX:~# kill -CLD 26110 26110: Received signal #18, SIGCLD, in poll() [caught] 26110: poll(0xFFBEF268, 2, -1) Err#4 EINTR 26110: sigaction(SIGCLD, 0x00000000, 0xFFBEEDD0) = 0 26110: write(6, "\0", 1...

...EXITED|WTRAPPED|WNOHANG) = 0 Received signal #18, SIGCLD, in poll() [caught] siginfo: SIGCLD CLD_EXITED pid=18231 status=0x0000 poll(0xFFBEFAE8, 0, 20) Err#4 EINTR waitid(P_ALL, 0, 0xFFBEF620, WEXITED|WTRAPPED|WNOHANG) = 0 waitid(P_ALL, 0, 0xFFBEF620, WEXITED|WTRAPPED|WNOHANG) Err#10 ECHILD setcontext(0xFFBEF7D0) poll(0xFFBEFAE8, 0, 16) = 0 waitid(P_PID, 18231, 0xFFBEFB08, WEXITED|WTRAPPED|WNOHANG) Err#10 ECHILD sigaction(SIGUSR1, 0xFFBEFB48, 0xFFBEFBC8) = 0 sigaction(SIGUSR2, 0xFFBEFB48, 0xFFBEFBC8) = 0 llseek(0, 0, SEEK_CUR) Err#9 EBADF _exit(0) bash-2.03$ The destination dir...

...ed with the termination of child processes. If the signal handler for SIGCHILD is executed, as the result of a child termination, before the wait_process procedure is executed, the status of pid (as passed to wait_process) will not be available and the waitpid call in wait_process will fail with an ECHILD error. If however, wait_process executes first, it will successfully obtain the exit status of pid and the sigchld_handler can execute, to eliminate zombies, with no adverse affects. Since signal handlers execute asynchronously there is no way to predict when, if at all, a process will encounter...

...p 1470 Process 1470 attached wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 2505 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2505, si_status=0, si_utime=0, si_stime=0} --- wait4(-1, 0x7ffd2cbd4490, WNOHANG, NULL) = -1 ECHILD (No child processes) rt_sigreturn() = 0 rt_sigaction(SIGINT, {SIG_IGN, [], SA_RESTORER, 0x7f1a0245b250}, {SIG_IGN, [], SA_RESTORER, 0x7f1a0245b250}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 stat("/bin/pkill",...

...0) = 0 write(3, " g o t S I G C L D\n", 11) = 11 getuid() = 0 [0] fstat(3, 0xEFFFC0F0) = 0 waitid(P_ALL, 0, 0xEFFFC108, WEXITED|WTRAPPED|WNOHANG) = 0 waitid(P_ALL, 0, 0xEFFFC108, WEXITED|WTRAPPED|WNOHANG) Err#10 ECHILD sigaction(SIGCLD, 0xEFFFC0B8, 0xEFFFC1B8) = 0 waitid(P_ALL, 0, 0xEFFFC138, WEXITED|WNOHANG|WNOWAIT) Err#10 ECHILD sigprocmask(SIG_UNBLOCK, 0xEFFFC1D8, 0x00000000) = 0 setcontext(0xEFFFC328) poll(0xEFFFC648, 1, -1) (sleeping...) --- Samba compile options --- FLAGSM = -DSUNOS5 -DSHADO...

Some background information. I have used Debian with Asterisk for several years. Have encountered zero problems. I am now trying to setup an Asterisk on a CentOS7 box using VMWare Workstation. I am brand new to CentOS and RHEL so I may be missing something obvious. I am installing CentOS Minimal Install and Asterisk from Source. (I have installed Asterisk from Source on Debian hundreds of

...d(pid, status, WNOHANG) == 0) { --- > pid_t waited_pid; > int cnt; > > while ( 1 ) { > waited_pid = waitpid(pid, status, WNOHANG); > if ( waited_pid == 0 ) { 39a50 > } else break; 40a52,63 > if (( waited_pid == -1 ) && ( errno == ECHILD )) { > /* status of requested child no longer available. Check */ > /* to see if it was processed by the sigchld_handler. */ > cnt = 0; > while ( cnt < 10 ) { > if ( pid == pid_stat_table[cnt].pid ) { > *status...

...n [3], out [4], left {5, 830000}) > --- SIGCHLD (Child exited) @ 0 (0) --- > waitpid(-1, [{WIFSIGNALED(s) && WTERMSIG(s) == SIGUSR1}], WNOHANG) = 20773 > waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 30}], WNOHANG) = 20774 > waitpid(-1, 0xbff0ffe0, WNOHANG) = -1 ECHILD (No child processes) > sigreturn() = ? (mask now []) > select(4, [3], [], NULL, {60, 0}) = 1 (in [3], left {60, 0}) > read(3, "", 4) = 0 > write(2, "rsync: connection unexpectedly c"..., 81rsync: connection u...

...= 1069070906 15154 --- SIGSEGV (Segmentation fault) @ 0 (0) --- 15154 +++ killed by SIGSEGV +++ 15153 --- SIGCHLD (Child exited) @ 0 (0) --- 15153 waitpid(-1, [WIFSIGNALED(s) && WTERMSIG(s) == SIGSEGV && WCOREDUMP(s)], WNOHANG) = 15154 15153 waitpid(-1, 0xbffff864, WNOHANG) = -1 ECHILD (No child processes) 15153 sigreturn() = ? (mask now []) 15153 exit_group(0) = ? 1) It's a bother that it first daemonizes itself and then checks the config etc., giving no feedback whatsoever that it's not running. 2) core dumps are never good...

...ess(0x7fd4080809d0) = 7241 7241 --- SIGSEGV (Segmentation fault) @ 0 (0) --- 6080 <... select resumed> ) = ? ERESTARTNOHAND (To be restarted) 6080 --- SIGCHLD (Child exited) @ 0 (0) --- 6080 wait4(-1, NULL, WNOHANG, NULL) = 7241 6080 wait4(-1, NULL, WNOHANG, NULL) = -1 ECHILD (No child processes) 6080 rt_sigreturn(0xffffffffffffffff) = -1 EINTR (Interrupted system call) 6080 select(5, [4], NULL, NULL, NULL <unfinished ...> so, i have upgraded rsync to latest in my remote pc, but problem not get solved. Please help me to solve this. Regards, Vigneshdhanraj G -...

...- if there is some other way I might be able to capture / check this traffic? - what else I should maybe be looking for in my packet dumps or elsewhere? Are the error codes regular UNIX values, in which case I believe 1 = EPERM (Operation not permitted) 6 = ENXIO (No such device or address) 10 = ECHILD (No child processes) 110 = ETIMEDOUT (Connection timed out) This would explain what the errors mean; but I don't know why they are occurring, and so regularly.. Thank you for any pointers! :) Jonathan -- "If we knew what it was we were doing, it would not be called research, would it?&...

....c(463) [generator=2.6.8]\n", 2764) = 176 04:29:20 select(8, [7], [], NULL, {60, 0}) = 1 (in [7], left {60, 0}) 04:29:20 --- SIGCHLD (Child exited) @ 0 (0) --- 04:29:20 waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG) = 29245 04:29:20 waitpid(-1, 0xbfff7ba4, WNOHANG) = -1 ECHILD (No child processes) 04:29:20 sigreturn() = ? (mask now []) 04:29:20 read(7, "", 2588) = 0 04:29:20 write(2, "rsync: connection unexpectedly closed (356009 bytes received so far) [sender]", 77) = 77 04:29:20 write(2, "\n", 1)...

Here are strace outputs per process. strace_output.22076 is the plugin's pid. (A little before forking) strace_output.22077 runs qemu-img strace_output.22078 is a mystery to me strace_output.22079 is rm -rf to the overlay image and its temporary dir. Best Regards, Peter On Wed, Nov 7, 2018 at 4:38 PM Richard W.M. Jones <rjones@redhat.com> wrote: > On Wed, Nov 07, 2018 at

...V (Segmentation fault) @ 0 (0) --- >> 6080 <... select resumed> ) = ? ERESTARTNOHAND (To be >> restarted) >> 6080 --- SIGCHLD (Child exited) @ 0 (0) --- >> 6080 wait4(-1, NULL, WNOHANG, NULL) = 7241 >> 6080 wait4(-1, NULL, WNOHANG, NULL) = -1 ECHILD (No child >processes) >> 6080 rt_sigreturn(0xffffffffffffffff) = -1 EINTR (Interrupted >system >> call) >> 6080 select(5, [4], NULL, NULL, NULL <unfinished ...> >> >> so, i have upgraded rsync to latest in my remote pc, but problem not >get >> s...

...exit_group(2) = ? Process 11039 detached <... select resumed> ) = ? ERESTARTNOHAND (To be restarted) --- SIGCHLD (Child exited) @ 0 (0) --- waitpid(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 2}], WNOHANG) = 11039 waitpid(-1, 0xbf8388a0, WNOHANG) = -1 ECHILD (No child processes) sigreturn() = ? (mask now []) gettimeofday({1191827978, 179329}, NULL) = 0 select(0, NULL, NULL, NULL, {0, 13000}) = 0 (Timeout) gettimeofday({1191827978, 192392}, NULL) = 0 waitpid(11043, 0xbf838c08, WNOHANG) = -1 ECHILD (No child processes) wai...

On 7.3.2019 23.37, A. Schulze via dovecot wrote: > > Am 07.03.19 um 17:33 schrieb Aki Tuomi via dovecot: > >>> test-http-client-errors.c:2989: Assert failed: FALSE >>> connection timed out ................................................. : FAILED > Hello Aki, > >> Are you running with valgrind or on really slow system? > I'm not aware my buildsystem