We had discussions about this back in May and a solution was put in place and
it has helped. However, I am still seeing intermittent hanging when GNU Emacs
(emacs-w32) is interacting with back-end GNU Linux systems.
I run bash shell sessions in GNU Emacs buffers and SQL sessions on remote hosts
thru Emacs buffers as well. I see progress hanging on save operations, using
the "with-editor" MELPA add-in (opens a Emacs buffer tied to a remote file from
within a Emacs bash session), and remote logins created to start a sqlplus
session.
I send a SIGUSR2 to the Emacs session to get it's attention, and the backtrace
generally looks like ("xyzmachine" is an obvious replacement for the actual
server name):
accept-process-output(#<process *tramp/scp mmauger@xyzmachine*> 1 nil t)
byte-code("\306^H\206^F^@\307\310\311#\211^Y\nB^Z\312\216\313^K^H\f^M\205^Y^@\314$+\207"
[timeout -with-timeout-timer- with-timeout-timers p timeout-msecs proc
run-with-timer 1 nil #[nil "\300\301\211\"\207" [throw timeout] 3]
((cancel-timer -with-timeout-timer-)) accept-process-output t] 6)
tramp-accept-process-output(#<process *tramp/scp mmauger@xyzmachine*> 1)
tramp-wait-for-regexp(#<process *tramp/scp mmauger@xyzmachine*> nil
"\\(^\\|^@\\)[^#$\n]*///c9cdf3c04442cbe5185fcf9c69da1204#\\$^M?$")
tramp-wait-for-output(#<process *tramp/scp mmauger@xyzmachine*>)
Timeouts don't seem to get it's attention. Sometimes C-g C-g C-g works, but
not always. I realize I need to be more specific but it is happening only
occasionally and usually when I'm under work deadline pressure. This is
happening on my work PC (my home PC runs Fedora and I've seen no such behavior,
but I don't do as much remote processing in that environment) so recompiling
and debugging options are limited.
My intent was only to make others aware that I am still seeing some unexpected
behavior in a fairly normal GNU Emacs work flow, and hope that someone else can
pipe in with "Me, too!" and "Here's how to fix it!" :)
Let me know if there is anything else I can do to help you understand the issue
further.
--
MICHAEL MAUGER // FSF Member // GNU Emacs sql-mode maintainer // GNU Linux, GNU
Emacs, OwnCloud
Please no MS Word attachments (I don't pay MS; they don't own my computer)
http://www.gnu.org/philosophy/no-word-attachments.html
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