Re: remote tramp hangs

[Raphaël Berbain]

* Michael Albinus:

> raphael.berbain@gmail.com (Raphaël Berbain) writes:
>
>> * Michael Albinus:
>>
>>> You have posted the contents of the *Messages* buffer, and the backtrace
>>> when you have quit Tramp. I do not see the *debug tramp/scp root@harry*
>>> buffer.
>>
>> Have a look at line 180 & after in my first post.
>
> Your original post is
>
> Message-ID: <yzvfx7wroju.fsf@did75-11-82-231-40-223.fbx.proxad.net>
>
> There are less than 180 lines. Or I am still blind.
>
> Please, post the debug buffer again :-)
>
> Best regards, Michael.

Ah, finding it through google groups shows that the post got truncated
where the backtrace included a null character.  My newsreader shows it
in full, so I guess my news server has a full copy; the ^@ may have
messed up article propagation or something.  I did try to sanitize the
backtrace -- what's the correct way to gather & post a backtrace safely?

Either way, here is the output:

;; GNU Emacs: 23.1.50.1 Tramp: 2.1.18-pre -*- mode: outline; -*-
11:52:52.719159 tramp-maybe-open-connection (3) # Opening connection for 
root@harry using scp...
11:52:52.719504 tramp-get-connection-property (7) # process-name nil
11:52:52.719706 tramp-get-connection-property (7) # process-buffer nil
11:52:52.741698 tramp-maybe-open-connection (6) # /bin/sh
11:52:52.742435 tramp-maybe-open-connection (3) # Waiting 60s for local shell 
to come up...
11:52:52.742934 tramp-get-connection-property (7) # check-remote-echo nil
11:52:52.743347 tramp-get-connection-property (7) # check-remote-echo nil
11:52:52.744312 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:52.744827 tramp-accept-process-output (10) # 
$ 
11:52:52.745238 tramp-get-connection-property (7) # check-remote-echo nil
11:52:52.745646 tramp-get-connection-property (7) # check-remote-echo nil
11:52:52.746067 tramp-wait-for-regexp (6) # 
$ 
11:52:52.746539 tramp-get-file-property (8) #  gateway nil
11:52:52.747034 tramp-set-connection-property (7) # temp-file 
/tmp/tramp.19095EWP
11:52:52.748140 tramp-maybe-open-connection (3) # Sending command `ssh harry -l 
root  -q -e none && exit || exit'
11:52:52.748570 tramp-get-connection-property (7) # process-name nil
11:52:52.749015 tramp-get-connection-property (7) # remote-echo nil
11:52:52.749397 tramp-send-command (6) # ssh harry -l root  -q -e none && exit 
|| exit
11:52:52.749781 tramp-get-connection-property (7) # process-name nil
11:52:52.750248 tramp-get-connection-property (7) # chunksize nil
11:52:52.750672 tramp-set-connection-property (7) # last-cmd-time (19220 62852 
750533)
11:52:52.751081 tramp-send-string (10) # ssh harry -l root  -q -e none && exit 
|| exit
11:52:52.751475 tramp-get-connection-property (7) # process-buffer nil
11:52:52.751972 tramp-set-connection-property (7) # first-password-request t
11:52:52.752575 tramp-process-actions (3) # Waiting for prompts from remote 
shell
11:52:52.753023 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:53.753649 tramp-accept-process-output (10) # 
11:52:53.754075 tramp-process-one-action (5) # Looking for regexp "\(.*ogin\( 
.*\)?: *\)\'" from remote shell
11:52:53.754532 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.754970 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.755402 tramp-process-one-action (5) # Looking for regexp 
"\(^.*\([pP]assword\|[pP]assphrase\).*:.? *\)\'" from remote shell
11:52:53.755833 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.756268 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.756719 tramp-process-one-action (5) # Looking for regexp 
"\(^.*\(Connection \(?:\(?:clo\|refu\)sed\)\|Host key verification 
failed\.\|Login \(?:[Ii]ncorrect\)\|N\(?:ame or service not known\|o supported 
authentication methods left to try!\)\|Permission denied\|Sorry, try 
again\.\).*\|^.*\(Received signal [0-9]+\).*\)\'" from remote shell
11:52:53.757170 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.757595 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.758043 tramp-process-one-action (5) # Looking for regexp "\(^[^#$%>
]*[#$%>] *\)\'" from remote shell
11:52:53.758494 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.758904 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.759326 tramp-process-one-action (5) # Looking for regexp 
"\(\(?:^\|\)[^#$%>
]*[#$%>] *\(.\[[0-9;]*[a-zA-Z] *\)*\)\'" from remote shell
11:52:53.759773 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.760182 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.760629 tramp-process-one-action (5) # Looking for regexp "\(\(Are you 
sure you want to continue connecting (yes/no)\?\)\s-*\)\'" from remote shell
11:52:53.761087 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.761497 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.761920 tramp-process-one-action (5) # Looking for regexp 
"\(\(\(?:Store key in cache\? (y/\|Update cached key\? (y/n, Return cancels 
connectio\)n)\)\s-*\)\'" from remote shell
11:52:53.762377 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.762811 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.763217 tramp-process-one-action (5) # Looking for regexp "\(\(TERM = 
(.*)\|Terminal type\? \[.*\]\)\s-*\)\'" from remote shell
11:52:53.763673 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.764101 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.764549 tramp-process-one-action (5) # Looking for regexp "\(\)\'" from 
remote shell
11:52:53.764996 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.765427 tramp-get-connection-property (7) # check-remote-echo nil
11:52:53.765818 tramp-process-one-action (5) # Call `tramp-action-process-alive'
11:52:53.766283 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.690481 tramp-accept-process-output (10) # 
# 
11:52:54.690914 tramp-process-one-action (5) # Looking for regexp "\(.*ogin\( 
.*\)?: *\)\'" from remote shell
11:52:54.691373 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.691809 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.692233 tramp-process-one-action (5) # Looking for regexp 
"\(^.*\([pP]assword\|[pP]assphrase\).*:.? *\)\'" from remote shell
11:52:54.692666 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.693111 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.693550 tramp-process-one-action (5) # Looking for regexp 
"\(^.*\(Connection \(?:\(?:clo\|refu\)sed\)\|Host key verification 
failed\.\|Login \(?:[Ii]ncorrect\)\|N\(?:ame or service not known\|o supported 
authentication methods left to try!\)\|Permission denied\|Sorry, try 
again\.\).*\|^.*\(Received signal [0-9]+\).*\)\'" from remote shell
11:52:54.694001 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.694433 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.694861 tramp-process-one-action (5) # Looking for regexp "\(^[^#$%>
]*[#$%>] *\)\'" from remote shell
11:52:54.695296 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.695730 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.696142 tramp-process-one-action (5) # Call `tramp-action-succeed'
11:52:54.696558 tramp-get-connection-property (7) # process-buffer nil
11:52:54.725933 tramp-process-actions (6) # 
# 
11:52:54.726458 tramp-maybe-open-connection (3) # Found remote shell prompt on 
`harry'
11:52:54.726753 tramp-get-connection-property (7) # process-name nil
11:52:54.726981 tramp-get-connection-property (7) # remote-echo nil
11:52:54.727166 tramp-send-command (6) # exec env ENV='' PROMPT_COMMAND='' 
PS1=\$\  PS2='' PS3='' /bin/sh
11:52:54.727363 tramp-get-connection-property (7) # process-name nil
11:52:54.727577 tramp-get-connection-property (7) # chunksize nil
11:52:54.727783 tramp-set-connection-property (7) # last-cmd-time (19220 62854 
727716)
11:52:54.727982 tramp-send-string (10) # exec env ENV='' PROMPT_COMMAND='' 
PS1=\$\  PS2='' PS3='' /bin/sh
11:52:54.728179 tramp-get-connection-property (7) # process-buffer nil
11:52:54.728429 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.728631 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.728843 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.742004 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_
11:52:54.742438 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.742841 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.743252 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.751752 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMM
11:52:54.752175 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.752574 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.752984 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.760382 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND=
11:52:54.760801 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.761205 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.761616 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.770393 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS
11:52:54.770814 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.771227 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.771652 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.780386 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\
11:52:54.780818 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.781228 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.781650 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.790386 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\  PS2
11:52:54.790818 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.791267 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.791693 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.800388 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\  PS2='' P
11:52:54.800824 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.801235 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.801662 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.810387 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\  PS2='' PS3=''
11:52:54.810817 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.811229 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.811658 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.820413 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\  PS2='' PS3='' /bin
11:52:54.820847 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.821258 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.821690 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.830378 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\  PS2='' PS3='' /bin/sh
11:52:54.830783 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.831197 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.831627 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:54.880378 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\  PS2='' PS3='' /bin/sh
# 
11:52:54.880808 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.881223 tramp-get-connection-property (7) # check-remote-echo nil
11:52:54.881656 tramp-accept-process-output (10) # *tramp/scp root@harry* run
11:52:55.883214 tramp-accept-process-output (10) # 
exec env ENV='' PROMPT_COMMAND='' PS1=\$\  PS2='' PS3='' /bin/sh
#