Attachment 2243 Details for Bug 2090 – Detailed Debug info.

Detailed Debug info.

SSH-Hang-Bug-Report -DBX.txt (text/plain), 4.24 KB, created by Vikas K Vicky on 2013-04-15 21:08:46 AEST

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Creator: Vikas K Vicky

Created: 2013-04-15 21:08:46 AEST

Size: 4.24 KB

patch

obsolete

>Server hang -
>===============
>
>Stack Trace -
>
>
>stopped in __fd_poll at 0xd024a734 ($t1)
>0xd024a734 (__fd_poll+0xb4) 80410014         lwz   r2,0x14(r1)
>(dbx) where
>__fd_poll(??, ??, ??) at 0xd024a734
>monitor.poll(__listptr = 0x2ff223a8, __nfds = 1, __timeout = -1), line 107 in "poll.h"
>monitor_read(pmonitor = 0x20039bb8, ent = 0x2001ce18, pent = (nil)), line 594 in "monitor.c"
>monitor_child_postauth(pmonitor = 0x20039bb8), line 517 in "monitor.c"
>privsep_postauth(authctxt = 0x20050a28), line 733 in "sshd.c"
>main(ac = 3, av = 0x200323b8), line 2141 in "sshd.c"
>
>-----------------------------------------------------------------------------------------------------------------------------------------------
>
>Important Debug Traces -
>
>
>
>stopped in monitor_read at line 588 in file "/openssh-6.0p1/monitor.c" ($t1)
>  588           for (;;) {
>(dbx) n
>stopped in monitor_read at line 589 in file "/openssh-6.0p1/monitor.c" ($t1)
>  589                   bzero(&pfd, sizeof(pfd));
>(dbx) n
>stopped in monitor_read at line 590 in file "/openssh-6.0p1/monitor.c" ($t1)
>  590                   pfd[0].fd = pmonitor->m_sendfd;
>(dbx) n
>stopped in monitor_read at line 591 in file "/openssh-6.0p1/monitor.c" ($t1)
>  591                   pfd[0].events = POLLIN;
>(dbx) n
>stopped in monitor_read at line 592 in file "/openssh-6.0p1/monitor.c" ($t1)
>  592                   pfd[1].fd = pmonitor->m_log_recvfd;
>(dbx) n
>stopped in monitor_read at line 593 in file "/openssh-6.0p1/monitor.c" ($t1)
>  593                   pfd[1].events = pfd[1].fd == -1 ? 0 : POLLIN;
>(dbx) p pfd[1].fd
>-1
>(dbx) n
>stopped in monitor_read at line 594 in file "/openssh-6.0p1/monitor.c" ($t1)
>  594                   if (poll(pfd, pfd[1].fd == -1 ? 1 : 2, -1) == -1) {
>(dbx) n
>
>The Server ( sshd ) hangs in the poll( ) subroutine here.
>
>
>
>================================================================================================================================================
>
>
>Client hang ==>
>================
>
>
>Stack Trace-
>
>
>stopped in __fd_select at 0xd024af2c ($t1)
>0xd024af2c (__fd_select+0xcc) 80410014         lwz   r2,0x14(r1)
>(dbx) where
>__fd_select(??, ??, ??, ??, ??) at 0xd024af2c
>clientloop.select(__fds = 8, __readlist = 0x20042228, __writelist = 0x200457c8, __exceptlist = (nil), __timeout = (nil)), line 234 in "time.h"
>client_wait_until_can_do_something(readsetp = 0x2ff21d30, writesetp = 0x2ff21d34, maxfdp = 0x2ff21d4c, nallocp = 0x2ff21d68, rekeying = 0), line 654 in "clientloop.c"
>client_loop(have_pty = 1, escape_char_arg = 126, ssh2_chan_id = 0), line 1538 in "clientloop.c"
>ssh_session2(), line 1519 in "ssh.c"
>main(ac = 0, av = 0x20028e70), line 979 in "ssh.c"
>(dbx)
>
>-------------------------------------------------------------------------------------------------------------------------------------------------
>
>
>Important Debug Traces -
>
>
>
>stopped in client_wait_until_can_do_something at line 627 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  627           if (packet_have_data_to_write())
>(dbx) n
>stopped in client_wait_until_can_do_something at line 636 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  636           timeout_secs = INT_MAX; /* we use INT_MAX to mean no timeout */
>(dbx) n
>stopped in client_wait_until_can_do_something at line 637 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  637           if (options.server_alive_interval > 0 && compat20)
>(dbx) n
>stopped in client_wait_until_can_do_something at line 639 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  639           set_control_persist_exit_time();
>(dbx) n
>stopped in client_wait_until_can_do_something at line 640 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  640           if (control_persist_exit_time > 0) {
>(dbx) n
>stopped in client_wait_until_can_do_something at line 646 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  646           if (timeout_secs == INT_MAX)
>(dbx) n
>stopped in client_wait_until_can_do_something at line 647 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  647                   tvp = NULL;
>(dbx) n
>stopped in client_wait_until_can_do_something at line 654 in file "/openssh-6.0p1/clientloop.c" ($t1)
>  654           ret = select((*maxfdp)+1, *readsetp, *writesetp, NULL, tvp);
>(dbx) n
>
>
>The Client ( ssh ) hangs in select( ) subroutine here.
>

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