Re: IMAP over SSL (only) handshake hangs

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Am Dienstag, 13. Januar 2015, 11:41:30 schrieben Sie:
> Is it possible you have reached the maxchild limit?
sorry, but no.

there is just one child and maxchild is >150 and there could be still 
constructed new childs.

but thank you very much for your idea...

btw:
The timeout with openssl client gomes with:

	write:errno=104
	---
	no peer certificate available
	---
	No client certificate CA names sent
	---
	SSL handshake has read 0 bytes and written 308 bytes
	---
	New, (NONE), Cipher is (NONE)
	Secure Renegotiation IS NOT supported
	Compression: NONE
	Expansion: NONE


Ive done a

strace -f -p on the master process which brought out:


    10.010180 select(43, [7 9 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 38 
39 42], NULL, NULL, {0, 984890}) = 0 (Timeout)
     0.986051 socket(PF_LOCAL, SOCK_STREAM, 0) = 44
     0.000055 connect(44, {sa_family=AF_LOCAL, sun_path="/var/agentx/master"}, 
110) = -1 ENOENT (No such file or directory)
     0.000040 close(44)                 = 0
     0.000036 stat("/etc/resolv.conf", {st_dev=makedev(8, 1), st_ino=927140, 
st_mode=S_IFREG|0644, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, 
st_blocks=8, st_size=115, st_atime=2015/01/06-02:10:04, 
st_mtime=2015/01/13-07:30:41, st_ctime=2015/01/13-07:30:41}) = 0
     0.000048 open("/etc/hosts", O_RDONLY|O_CLOEXEC) = 44
     0.000031 fstat(44, {st_dev=makedev(8, 1), st_ino=788109, st_mode=S_IFREG|
0644, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, st_blocks=8, 
st_size=1226, st_atime=2015/01/05-13:34:28, st_mtime=2015/01/13-11:51:37, 
st_ctime=2015/01/13-11:51:37}) = 0
     0.000045 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|
MAP_ANONYMOUS, -1, 0) = 0x7ff295338000
     0.000029 read(44, "# /etc/hosts: Local Host Databas"..., 4096) = 1226
     0.000076 read(44, "", 4096)        = 0
     0.000029 close(44)                 = 0
     0.000026 munmap(0x7ff295338000, 4096) = 0
     0.000035 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 44
     0.000034 connect(44, {sa_family=AF_INET, sin_port=htons(705), 
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
     0.000083 close(44)                 = 0
     0.000038 write(2, "Warning: Failed to connect to th"..., 64) = 64
     0.000039 select(43, [7 9 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 38 
39 42], NULL, NULL, {9, 0}

) = 1 (in [12], left {4, 294718})
     4.705369 read(12, "\2\0\0\0008\32\0\0", 8) = 8
     0.000076 read(12, "\3\0\0\0008\32\0\0", 8) = 8
     0.000036 read(12, 0x7fff1bb0bbe0, 8) = -1 EAGAIN (Resource temporarily 
unavailable)
     0.000099 select(43, [7 9 11 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 
38 39 42], NULL, NULL, {4, 0}) = 1 (in [12], left {3, 982250})
     0.017874 read(12, "\1\0\0\0008\32\0\0", 8) = 8
     0.000038 read(12, 0x7fff1bb0bbe0, 8) = -1 EAGAIN (Resource temporarily 
unavailable)
     0.000120 select(43, [7 9 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 38 
39 42], NULL, NULL, {4, 0}

) = 0 (Timeout)
     4.004195 select(43, [7 9 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 38 
39 42], NULL, NULL, {6, 271546}) = 0 (Timeout)
     6.278002 socket(PF_LOCAL, SOCK_STREAM, 0) = 44
     0.000056 connect(44, {sa_family=AF_LOCAL, sun_path="/var/agentx/master"}, 
110) = -1 ENOENT (No such file or directory)
     0.000047 close(44)                 = 0
     0.000044 stat("/etc/resolv.conf", {st_dev=makedev(8, 1), st_ino=927140, 
st_mode=S_IFREG|0644, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, 
st_blocks=8, st_size=115, st_atime=2015/01/06-02:10:04, 
st_mtime=2015/01/13-07:30:41, st_ctime=2015/01/13-07:30:41}) = 0
     0.000063 open("/etc/hosts", O_RDONLY|O_CLOEXEC) = 44
     0.000034 fstat(44, {st_dev=makedev(8, 1), st_ino=788109, st_mode=S_IFREG|
0644, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, st_blocks=8, 
st_size=1226, st_atime=2015/01/05-13:34:28, st_mtime=2015/01/13-11:51:37, 
st_ctime=2015/01/13-11:51:37}) = 0
     0.000040 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|
MAP_ANONYMOUS, -1, 0) = 0x7ff295338000
     0.000033 read(44, "# /etc/hosts: Local Host Databas"..., 4096) = 1226
     0.000052 read(44, "", 4096)        = 0
     0.000027 close(44)                 = 0
     0.000024 munmap(0x7ff295338000, 4096) = 0
     0.000047 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 44
     0.000030 connect(44, {sa_family=AF_INET, sin_port=htons(705), 
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
     0.000096 close(44)                 = 0
     0.000040 write(2, "Warning: Failed to connect to th"..., 64) = 64
     0.000034 select(43, [7 9 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 38 
39 42], NULL, NULL, {4, 0}
) = 0 (Timeout)
     4.004169 select(43, [7 9 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 38 
39 42], NULL, NULL, {10, 0}) = ? ERESTARTNOHAND (To be restarted if no 
handler)
     7.662763 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6777, 
si_uid=129, si_status=0, si_utime=0, si_stime=0} ---
     0.000036 rt_sigreturn()            = -1 EINTR (Interrupted system call)
     0.000033 wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG, 
NULL) = 6777
     0.000098 sendto(5, "<183>Jan 13 12:07:12 master[6687"..., 64, 
MSG_NOSIGNAL, NULL, 0) = 64
     0.000134 wait4(-1, 0x7fff1bb0bb54, WNOHANG, NULL) = 0
     0.000052 select(43, [7 9 12 14 15 17 18 20 21 24 27 29 30 32 33 35 36 38 
39 41 42], NULL, NULL, {3, 3

Niels.
-- 
 ---
 Niels Dettenbach
 Syndicat IT & Internet
 http://www.syndicat.com
 PGP: https://syndicat.com/pub_key.asc
 ---
 


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