From: Richard Stallman <rms@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: epa problem has returned
Date: Sun, 25 May 2014 12:01:03 -0400 [thread overview]
Message-ID: <E1Woar9-0008Ig-Iw@fencepost.gnu.org> (raw)
In-Reply-To: <83wqdbjttp.fsf@gnu.org> (message from Eli Zaretskii on Sat, 24 May 2014 14:32:18 +0300)
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When it hangs, can you attach GDB and show where is it looping? I
don't understand how come accept-process-output could hang when it is
called with a timeout of 1 sec.
I am running all the time under GDB.
I stopped it with a signal during that hang
and it was hung in `read', called from `emacs_read', called
from `read_process_output', called from `wait_running_process_output'.
I put a breakpoint on the line in `emacs_read' that calls read,
and it gets called over and over. `read' returns 0.
Another time it was in pselect called from xg_select called from
wait_running_process_output.
I tried stepping and saw that it went around the big loop
in wait_running_process_output (starting at line 4333)
and did not exit it.
I don't know where and how it is supposed to exit,
so I could not tell why it was wrong.
I can't recall, and can't find, the GDB command to direct
GDB output to a file.
Is the process object with which accept-process-output is called alive
at the time of the hang?
Yes. The process status is `run'.
--
Dr Richard Stallman
President, Free Software Foundation
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USA
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next prev parent reply other threads:[~2014-05-25 16:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-20 10:23 epa problem has returned Richard Stallman
2014-05-21 0:12 ` T.V Raman
2014-05-24 11:32 ` Eli Zaretskii
2014-05-25 0:02 ` raman
2014-05-25 16:01 ` Richard Stallman [this message]
2014-05-25 16:23 ` Jorgen Schaefer
2014-05-26 16:44 ` Eli Zaretskii
2014-05-26 17:10 ` Paul Eggert
2014-05-27 6:11 ` Richard Stallman
2014-05-27 15:28 ` Eli Zaretskii
2014-05-27 15:36 ` Paul Eggert
-- strict thread matches above, loose matches on Subject: below --
2014-05-19 9:35 Richard Stallman
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