tramp (2.0.28); tramp fails to set remote prompt

[Joseph Vaughan]

Enter your bug report in this message, including as much detail as you
possibly can about the problem, what you did to cause it and what the
local and remote machines are.

If you can give a simple set of instructions to make this bug happen
reliably, please include those.  Thank you for helping kill bugs in
TRAMP.

Another useful thing to do is to put (setq tramp-debug-buffer t) in
the ~/.emacs file and to repeat the bug.  Then, include the contents
of the *tramp/foo* buffer and the *debug tramp/foo* buffer in your bug
report.

--bug report follows this line--

attempting to connect to remote host, occasionally get as far as "setting shell 
prompt", occasionally a little further. seems to be no repeatable way to 
determine how far I will get in the process.

This started happening after debian package installer updated to latest package 
of tramp.   local host is debian, 2.2.19 kernel

remote host is redhat, 2.4.18 kernel. 

current contents of ~/.emacs is:

(require 'tramp)
(setq tramp-default-method "scp")
(setq tramp-debug-buffer t)
(setq tramp-shell-prompt-pattern "^[^$\n]*[$]*")
(setq shell-prompt-pattern "^[^$\n]*[$] *") 
(setq tramp-verbose 10)
(setq tramp-debug-buffer t)
(setq tramp-method "scp")

tramp/nil admin.cdh.ucla.edu buffer contains:

> > sh: command substitution: line 1: syntax error near unexpected token 
> > `½{(j¼ðÕ:„bu¥'
sh: command substitution: line 1: `½{(j¼ðÕ:„bu¥'

///­yˆ


debug tramp/nil buffer contains:

# Opening connection at admin.cdh.ucla.edu using nil...
# Waiting for prompts from remote shell
# Waiting 60s for prompt from remote shell
# Looking for regexp "^.*\([pP]assword\|passphrase.*\):? *" from remote shell
# Looking for regexp ".*ogin: *" from remote shell
# Looking for regexp "^[^$
]*[$] *" from remote shell
# Looking for regexp "^[^$
]*[$]*" from remote shell
# Found remote shell prompt.
# Initializing remote shell
$ exec env PS1='$ ' /bin/sh
# Waiting 30s for remote `/bin/sh' to come up...
exec env 'PS1=$ ' /bin/sh
$ # Setting up remote shell environment
stty -inlcr -echo kill '^U'
$ $ # Determining coding system
foo
bar
$ # Waiting 30s for `HISTFILE=$HOME/.tramp_history; HISTSIZE=1'
$ # Waiting 30s for `set +o vi +o emacs'
$ # Waiting 30s for `unset MAIL MAILCHECK MAILPATH'
$ # Waiting 30s for `unset CDPATH'
$ # Setting shell prompt
$ PS1='
///­yˆ`½{(j¼ðÕ:„bu¥
'; PS2=''; PS3=''



Emacs  : GNU Emacs 20.7.2 (i386-debian-linux-gnu, X toolkit)
 of Thu Apr  4 2002 on cyberhq modified by Debian
Package: tramp (2.0.28)

current state:
==============
(setq
 tramp-ls-command nil
 tramp-test-groks-nt nil
 tramp-file-exists-command nil
 tramp-current-multi-method nil
 tramp-current-method nil
 tramp-current-user nil
 tramp-current-host nil
 tramp-auto-save-directory nil
 tramp-default-method "scp"
 tramp-rsh-end-of-line "\n"
 tramp-password-end-of-line "\n"
 tramp-remote-path '("/bin" "/usr/bin" "/usr/sbin" "/usr/local/bin"
                     "/usr/ccs/bin" "/local/bin" "/local/freeware/bin"
                     "/local/gnu/bin" "/usr/freeware/bin" "/usr/pkg/bin"
                     "/usr/contrib/bin")
 tramp-login-prompt-regexp ".*ogin: *"
 tramp-password-prompt-regexp "^.*\\([pP]assword\\|passphrase.*\\):? *"
 tramp-wrong-passwd-regexp "^.*\\(Connection \\(closed\\|refused\\)\\|Host key 
verification failed\\.\\|Login \\(Incorrect\\|incorrect\\)\\|Name or service 
not known\\|Permission denied\\.\\|Sorry, try again\\.\\).*\\|^.*\\(Received 
signal [0-9]+\\).*"
 tramp-yesno-prompt-regexp "\\(Are you sure you want to continue connecting 
(yes/no)\\?\\)\\s-*"
 tramp-yn-prompt-regexp "\\(Store key in cache\\? (y/n)\\)\\s-*"
 tramp-temp-name-prefix "tramp."
 tramp-file-name-structure '("^/\\(\\([a-zA-Z_0-9-]+\\):\\)?\\(\\([^:@/         
]*\\)@\\)?\\([a-zA-Z0-9_.#-]*\\):\\(.*$\\)" 2 4 5 6)
 tramp-file-name-regexp "\\`/[^/:]+:"
 tramp-multi-file-name-structure 
'("^/\\(\\([a-zA-Z_0-9-]+\\)\\)?\\(\\(:%s\\)+\\)?:\\(.*$\\)" 2 3 -1)
 tramp-multi-file-name-hop-structure '("\\([a-zA-Z_0-9-]+\\):\\([^:@/   
]*\\)@\\([a-zA-Z0-9_.#-]*\\)" 1 2 3)
 tramp-multi-methods '("multi" "multiu")
 tramp-multi-connection-function-alist '(("telnet" tramp-multi-connect-telnet
                                          "telnet %h%n")
                                         ("rsh" tramp-multi-connect-rlogin
                                          "rsh %h -l %u%n")
                                         ("ssh" tramp-multi-connect-rlogin
                                          "ssh %h -l %u%n")
                                         ("su" tramp-multi-connect-su
                                          "su - %u%n")
                                         ("sudo" tramp-multi-connect-su
                                          "sudo -u %u -s%n")
                                         )
 tramp-methods '(("rcp" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "rsh") (tramp-rcp-program "rcp")
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args nil)
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg "-p")
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("scp" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program "scp")
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-e" "none"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg "-p")
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("scp1" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program "scp")
                  (tramp-remote-sh "/bin/sh")
                  (tramp-rsh-args ("-1" "-e" "none")) (tramp-rcp-args ("-1"))
                  (tramp-rcp-keep-date-arg "-p") (tramp-su-program nil)
                  (tramp-su-args nil) (tramp-telnet-program nil)
                  (tramp-telnet-args nil))
                 ("scp2" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program "scp")
                  (tramp-remote-sh "/bin/sh")
                  (tramp-rsh-args ("-2" "-e" "none")) (tramp-rcp-args ("-2"))
                  (tramp-rcp-keep-date-arg "-p") (tramp-su-program nil)
                  (tramp-su-args nil) (tramp-telnet-program nil)
                  (tramp-telnet-args nil))
                 ("scp1_old"
                  (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh1") (tramp-rcp-program "scp1")
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-e" "none"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg "-p")
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("scp2_old"
                  (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh2") (tramp-rcp-program "scp2")
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-e" "none"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg "-p")
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("rsync"
                  (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program "rsync")
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-e" "none"))
                  (tramp-rcp-args ("-e" "ssh")) (tramp-rcp-keep-date-arg "-t")
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("rsh" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "rsh") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args nil)
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("ssh" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-e" "none"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("ssh1" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh")
                  (tramp-rsh-args ("-1" "-e" "none")) (tramp-rcp-args ("-1"))
                  (tramp-rcp-keep-date-arg nil) (tramp-su-program nil)
                  (tramp-su-args nil) (tramp-telnet-program nil)
                  (tramp-telnet-args nil))
                 ("ssh2" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh")
                  (tramp-rsh-args ("-2" "-e" "none")) (tramp-rcp-args ("-2"))
                  (tramp-rcp-keep-date-arg nil) (tramp-su-program nil)
                  (tramp-su-args nil) (tramp-telnet-program nil)
                  (tramp-telnet-args nil))
                 ("ssh1_old"
                  (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh1") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-e" "none"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("ssh2_old"
                  (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh2") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-e" "none"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("telnet"
                  (tramp-connection-function tramp-open-connection-telnet)
                  (tramp-rsh-program nil) (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args nil)
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program "telnet") (tramp-telnet-args nil))
                 ("su" (tramp-connection-function tramp-open-connection-su)
                  (tramp-rsh-program nil) (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args nil)
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program "su") (tramp-su-args ("-" "%u"))
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("sudo" (tramp-connection-function tramp-open-connection-su)
                  (tramp-rsh-program nil) (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args nil)
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program "sudo") (tramp-su-args ("-u" "%u" "-s"))
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("multi"
                  (tramp-connection-function tramp-open-connection-multi)
                  (tramp-rsh-program nil) (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args nil)
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("scpx" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program "scp")
                  (tramp-remote-sh "/bin/sh")
                  (tramp-rsh-args ("-e" "none" "-t" "-t" "/bin/sh"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg "-p")
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("sshx" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "ssh") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh")
                  (tramp-rsh-args ("-e" "none" "-t" "-t" "/bin/sh"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("krlogin"
                  (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "krlogin") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-x"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("plink"
                  (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "plink") (tramp-rcp-program nil)
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-ssh"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg nil)
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("pscp" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "plink") (tramp-rcp-program "pscp")
                  (tramp-remote-sh "/bin/sh") (tramp-rsh-args ("-ssh"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg "-p")
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 ("fcp" (tramp-connection-function tramp-open-connection-rsh)
                  (tramp-rsh-program "fsh") (tramp-rcp-program "fcp")
                  (tramp-remote-sh "/bin/sh -i") (tramp-rsh-args ("sh" "-i"))
                  (tramp-rcp-args nil) (tramp-rcp-keep-date-arg "-p")
                  (tramp-su-program nil) (tramp-su-args nil)
                  (tramp-telnet-program nil) (tramp-telnet-args nil))
                 )
 tramp-end-of-output "///\255y\210`\275{(j\274\360\325:\204bu\245"
 tramp-coding-commands '(("mimencode -b" "mimencode -u -b"
                          base64-encode-region base64-decode-region)
                         ("mmencode -b" "mmencode -u -b" base64-encode-region
                          base64-decode-region)
                         ("recode data..base64" "recode base64..data"
                          base64-encode-region base64-decode-region)
                         ("uuencode xxx" "uudecode -o -" tramp-uuencode-region
                          uudecode-decode-region)
                         ("uuencode xxx" "uudecode -p" tramp-uuencode-region
                          uudecode-decode-region)
                         ("uuencode xxx" "tramp_uudecode"
                          tramp-uuencode-region uudecode-decode-region)
                         ("tramp_encode_with_module"
                          "tramp_decode_with_module" base64-encode-region
                          base64-decode-region)
                         ("tramp_encode" "tramp_decode" base64-encode-region
                          base64-decode-region)
                         )
 tramp-actions-before-shell '((tramp-password-prompt-regexp
                               tramp-action-password)
                              (tramp-login-prompt-regexp tramp-action-login)
                              (shell-prompt-pattern tramp-action-succeed)
                              (tramp-shell-prompt-pattern tramp-action-succeed)
                              (tramp-wrong-passwd-regexp
                               tramp-action-permission-denied)
                              (tramp-yesno-prompt-regexp tramp-action-yesno)
                              (tramp-yn-prompt-regexp tramp-action-yn)
                              (tramp-terminal-prompt-regexp
                               tramp-action-terminal)
                              )
 tramp-multi-actions '((tramp-password-prompt-regexp
                        tramp-multi-action-password)
                       (tramp-login-prompt-regexp tramp-multi-action-login)
                       (shell-prompt-pattern tramp-multi-action-succeed)
                       (tramp-shell-prompt-pattern tramp-multi-action-succeed)
                       (tramp-wrong-passwd-regexp
                        tramp-multi-action-permission-denied)
                       )
 tramp-terminal-type "dumb"
 tramp-shell-prompt-pattern "^[^$\n]*[$]*"
 shell-prompt-pattern "^[^$\n]*[$] *"
 backup-by-copying nil
 backup-by-copying-when-linked nil
 backup-by-copying-when-mismatch nil
 nil nil
 file-name-handler-alist '(("^/[^/]*$" . tramp-completion-file-name-handler)
                           ("\\`/[^/:]+:" . tramp-file-name-handler)
                           ("^/[^/:]*\\'" . ange-ftp-completion-hook-function)
                           ("^/[^/:]*[^/:.]:" . ange-ftp-hook-function)
                           ("\\`/:" . file-name-non-special))
 )