root@mufasa # uname -a SunOS mufasa 5.9 Generic_112233-08 sun4u sparc SUNW,Ultra-Enterprise The system was patched. root@mufasa # /usr/local/bin/gcc -v Reading specs from /usr/local/lib/gcc-lib/sparc-sun-solaris2.9/3.3.2/specs Configured with: ../configure --with-as=/usr/ccs/bin/as --with-ld=/usr/ccs/bin/ld --disable-nls Thread model: posix gcc version 3.3.2 On OpenSSH (sshd version OpenSSH_3.8p1, OpenSSL 0.9.7d 17 Mar 2004) sftp-server receives SIGCHLD when I try to connect using sftp. Trace: root@mufasa # /usr/local/openssh/sbin/sshd -dddd debug2: read_server_config: filename /etc/openssh/sshd_config debug1: sshd version OpenSSH_3.8p1 debug1: private host key: #0 type 0 RSA1 debug3: Not a RSA1 key file /etc/openssh/ssh_host_rsa_key. debug1: read PEM private key done: type RSA debug1: private host key: #1 type 1 RSA debug3: Not a RSA1 key file /etc/openssh/ssh_host_dsa_key. debug1: read PEM private key done: type DSA debug1: private host key: #2 type 2 DSA debug1: Bind to port 22 on ::. Server listening on :: port 22. debug1: Bind to port 22 on 0.0.0.0. Server listening on 0.0.0.0 port 22. Generating 768 bit RSA key. RSA key generation complete. debug1: Server will not fork when running in debugging mode. Connection from 192.168.10.100 port 49367 debug1: Client protocol version 2.0; client software version OpenSSH_3.6.1p1 FreeBSD-20030924 debug1: match: OpenSSH_3.6.1p1 FreeBSD-20030924 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-1.99-OpenSSH_3.8p1 debug2: Network child is on pid 15421 debug3: preauth child monitor started debug3: mm_request_receive entering debug3: privsep user:group 22:22 debug1: permanently_set_uid: 22/22 debug1: list_hostkey_types: ssh-rsa,ssh-dss debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-dss,ssh-rsa debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_init: found hmac-md5 debug1: kex: client->server aes128-cbc hmac-md5 none debug2: mac_init: found hmac-md5 debug1: kex: server->client aes128-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received debug3: mm_request_send entering: type 0 debug3: mm_choose_dh: waiting for MONITOR_ANS_MODULI debug3: mm_request_receive_expect entering: type 1 debug3: monitor_read: checking request 0 debug3: mm_request_receive entering debug3: mm_answer_moduli: got parameters: 1024 2048 8192 debug3: mm_request_send entering: type 1 debug2: monitor_read: 0 used once, disabling now debug3: mm_request_receive entering debug3: mm_choose_dh: remaining 0 debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent debug2: dh_gen_key: priv key bits set: 131/256 debug2: bits set: 1596/3191 debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT debug2: bits set: 1600/3191 debug3: mm_key_sign entering debug3: mm_request_send entering: type 4 debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN debug3: monitor_read: checking request 4 debug3: mm_request_receive_expect entering: type 5 debug3: mm_request_receive entering debug3: mm_answer_sign debug3: mm_answer_sign: signature 8ac90(55) debug3: mm_request_send entering: type 5 debug2: monitor_read: 4 used once, disabling now debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent debug3: mm_request_receive entering debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: KEX done debug1: userauth-request for user gregory service ssh-connection method none debug1: attempt 0 failures 0 debug3: mm_getpwnamallow entering debug3: mm_request_send entering: type 6 debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM debug3: mm_request_receive_expect entering: type 7 debug3: mm_request_receive entering debug3: monitor_read: checking request 6 debug3: mm_answer_pwnamallow debug3: auth_shadow_acctexpired: today 12521 sp_expire -1 days left -12522 debug3: account expiration disabled debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1 debug3: mm_request_send entering: type 7 debug2: monitor_read: 6 used once, disabling now debug2: input_userauth_request: setting up authctxt for gregory debug3: mm_request_receive entering debug3: mm_inform_authserv entering debug3: mm_request_send entering: type 3 debug2: input_userauth_request: try method none debug3: monitor_read: checking request 3 debug3: mm_auth_password entering debug3: mm_request_send entering: type 10 debug3: mm_auth_password: waiting for MONITOR_ANS_AUTHPASSWORD debug3: mm_request_receive_expect entering: type 11 debug3: mm_request_receive entering debug3: mm_answer_authserv: service=ssh-connection, style= debug2: monitor_read: 3 used once, disabling now debug3: mm_request_receive entering debug3: monitor_read: checking request 10 debug3: mm_answer_authpassword: sending result 0 debug3: mm_request_send entering: type 11 debug3: mm_auth_password: user not authenticated Failed none for gregory from 192.168.10.100 port 49367 ssh2 debug3: mm_request_receive entering Failed none for gregory from 192.168.10.100 port 49367 ssh2 debug1: userauth-request for user gregory service ssh-connection method keyboard-interactive debug1: attempt 1 failures 1 debug2: input_userauth_request: try method keyboard-interactive debug1: keyboard-interactive devs debug1: auth2_challenge: user=gregory devs= debug1: kbdint_alloc: devices 'pam,skey' debug2: auth2_challenge_start: devices pam,skey debug2: kbdint_next_device: devices skey debug1: auth2_challenge_start: trying authentication method 'pam' debug3: mm_sshpam_init_ctx debug3: mm_request_send entering: type 48 debug3: mm_sshpam_init_ctx: waiting for MONITOR_ANS_PAM_INIT_CTX debug3: monitor_read: checking request 48 debug3: mm_request_receive_expect entering: type 49 debug3: mm_request_receive entering debug3: mm_answer_pam_init_ctx debug3: PAM: sshpam_init_ctx entering debug3: mm_request_send entering: type 49 debug3: mm_sshpam_init_ctx: pam_init_ctx failed debug3: mm_request_receive entering Failed keyboard-interactive for gregory from 192.168.10.100 port 49367 ssh2 debug1: userauth-request for user gregory service ssh-connection method password debug1: attempt 2 failures 2 debug2: input_userauth_request: try method password debug3: mm_auth_password entering debug3: mm_request_send entering: type 10 debug3: mm_auth_password: waiting for MONITOR_ANS_AUTHPASSWORD debug3: mm_request_receive_expect entering: type 11 debug3: mm_request_receive entering debug3: monitor_read: checking request 10 debug3: auth_shadow_pwexpired: today 12521 sp_lstchg 12366 sp_max -1 debug3: password expiration disabled debug3: mm_answer_authpassword: sending result 1 debug3: mm_request_send entering: type 11 Accepted password for gregory from 192.168.10.100 port 49367 ssh2 debug1: monitor_child_preauth: gregory has been authenticated by privileged process debug3: mm_get_keystate: Waiting for new keys debug3: mm_request_receive_expect entering: type 24 debug3: mm_request_receive entering debug3: mm_auth_password: user authenticated Accepted password for gregory from 192.168.10.100 port 49367 ssh2 debug3: mm_send_keystate: Sending new keys: 89150 91e60 debug3: mm_newkeys_to_blob: converting 89150 debug3: mm_newkeys_to_blob: converting 91e60 debug3: mm_send_keystate: New keys have been sent debug3: mm_send_keystate: Sending compression state debug3: mm_request_send entering: type 24 debug3: mm_send_keystate: Finished sending state debug3: mm_newkeys_from_blob: 89ca0(118) debug2: mac_init: found hmac-md5 debug3: mm_get_keystate: Waiting for second key debug3: mm_newkeys_from_blob: 89ca0(118) debug2: mac_init: found hmac-md5 debug3: mm_get_keystate: Getting compression state debug3: mm_get_keystate: Getting Network I/O buffers debug3: mm_share_sync: Share sync debug3: mm_share_sync: Share sync end debug2: User child is on pid 15422 debug3: mm_request_receive entering debug1: permanently_set_uid: 1001/1 debug2: set_newkeys: mode 0 debug2: set_newkeys: mode 1 debug1: Entering interactive session for SSH2. debug2: fd 4 setting O_NONBLOCK debug2: fd 5 setting O_NONBLOCK debug1: server_init_dispatch_20 debug1: server_input_channel_open: ctype session rchan 0 win 131072 max 32768 debug1: input_session_request debug1: channel 0: new [server-session] debug1: session_new: init debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_channel_req: channel 0 request subsystem reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req subsystem subsystem request for sftp debug1: subsystem: exec() /usr/local/openssh/libexec/sftp-server debug2: fd 11 setting O_NONBLOCK debug2: fd 11 is O_NONBLOCK debug1: Received SIGCHLD. debug2: channel 0: read<=0 rfd 11 len 0 debug2: channel 0: read failed debug2: channel 0: close_read debug2: channel 0: input open -> drain debug2: channel 0: ibuf empty debug2: channel 0: send eof debug2: channel 0: input drain -> closed debug2: notify_done: reading debug1: session_by_pid: pid 15423 debug1: session_exit_message: session 0 channel 0 pid 15423 debug2: channel 0: request exit-signal debug1: session_exit_message: release channel 0 debug2: channel 0: write failed debug2: channel 0: close_write debug2: channel 0: output open -> closed debug1: session_close: session 0 pid 15423 debug2: channel 0: send close debug3: channel 0: will not send data after close debug2: channel 0: rcvd close debug3: channel 0: will not send data after close debug2: channel 0: is dead debug2: channel 0: garbage collecting debug1: channel 0: free: server-session, nchannels 1 debug3: channel 0: status: The following connections are open: #0 server-session (t4 r0 i3/0 o3/0 fd 11/11) debug3: channel 0: close_fds r 11 w 11 e -1 Connection closed by 192.168.10.100 debug1: do_cleanup Closing connection to 192.168.10.100 debug3: mm_request_send entering: type 56 debug3: monitor_read: checking request 56 debug3: mm_answer_term: tearing down sessions This only happens while compliled with OpenSSL with option "shared". ./config --prefix=/usr/local/openssl shared root@mufasa # openssl OpenSSL> version OpenSSL 0.9.7d 17 Mar 2004 Statically compiled OpenSSL (new one) or older versions work without any problems, i.e. sshd version OpenSSH_3.8p1, OpenSSL 0.9.7c 30 Sep 2003. Cheers, gregory
*** This bug has been marked as a duplicate of 841 ***
Mass change of RESOLVED bugs to CLOSED