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From: Noam Postavsky <npostavs@gmail.com>
To: 32452@debbugs.gnu.org
Subject: bug#32452: 26.1; gnutls_try_handshake maxes out cpu retrying when server is a bit busy
Date: Thu, 16 Aug 2018 08:13:40 -0400	[thread overview]
Message-ID: <87wosqwlu3.fsf@gmail.com> (raw)

Severity: minor

Recently the debbugs.gnu.org server is slow to respond.  I notice this
both when opening bug reports in Firefox, and from Emacs.  However,
Emacs uses 100% cpu while waiting for the server.  I added a message
call in gnutls_try_handshake (see patch below), and got "gnutls
non-fatal: Resource temporarily unavailable, try again. [190088 times]"
in *Messages*.  This was from doing M-x gnus-read-ephemeral-bug-group,
it took 5 or 10 seconds to (eventually successfully) complete.

We should have some kind of delay to avoid sending so many useless
retries.

--- i/src/gnutls.c
+++ w/src/gnutls.c
@@ -65,6 +65,7 @@ your option) any later version.
 
 static bool gnutls_global_initialized;
 
+static char const * emacs_gnutls_strerror (int err);
 static void gnutls_log_function (int, const char *);
 static void gnutls_log_function2 (int, const char *, const char *);
 # ifdef HAVE_GNUTLS3
@@ -558,7 +559,9 @@ gnutls_try_handshake (struct Lisp_Process *proc)
     }
   while (ret < 0
 	 && gnutls_error_is_fatal (ret) == 0
-	 && ! non_blocking);
+	 && ! non_blocking
+         && (message ("gnutls non-fatal: %s", emacs_gnutls_strerror (ret)),
+             true));
 
   proc->gnutls_initstage = GNUTLS_STAGE_HANDSHAKE_TRIED;





             reply	other threads:[~2018-08-16 12:13 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-16 12:13 Noam Postavsky [this message]
2018-08-16 12:49 ` bug#32452: 26.1; gnutls_try_handshake maxes out cpu retrying when server is a bit busy Noam Postavsky
2018-08-16 13:41 ` Eli Zaretskii
2018-08-16 14:45   ` Noam Postavsky
2018-08-16 17:33     ` Eli Zaretskii
2018-08-17  1:02       ` Noam Postavsky
2018-08-17  5:59         ` Eli Zaretskii
2018-08-17 11:55           ` Noam Postavsky
2018-08-17 12:25             ` Eli Zaretskii
2018-08-17 22:10               ` Noam Postavsky
2018-08-18  6:34                 ` Eli Zaretskii
2018-08-21  0:52                   ` Noam Postavsky
2018-08-21  2:42                     ` Eli Zaretskii
2022-02-21 15:20                       ` Lars Ingebrigtsen
2022-02-23 19:45                         ` Paul Eggert
2022-02-23 19:48                           ` Lars Ingebrigtsen
2022-02-23 22:29                             ` Paul Eggert
2022-02-23 22:40                               ` Lars Ingebrigtsen
2022-02-24  3:09                                 ` Paul Eggert
2022-02-24  8:57                                   ` Lars Ingebrigtsen
2022-02-24 18:20                                     ` Paul Eggert
2022-02-25  2:19                                       ` Lars Ingebrigtsen
2022-02-25  2:27                                       ` Lars Ingebrigtsen
2022-02-25 20:41                                         ` Paul Eggert
     [not found]                                         ` <6f364184-7fa8-04f3-44a9-22ce40b872e8@cs.ucla.edu>
2022-02-26 15:12                                           ` Lars Ingebrigtsen
2022-02-26 15:37                                             ` Eli Zaretskii
     [not found]                                             ` <83ee3pprkr.fsf@gnu.org>
2022-02-26 16:04                                               ` Lars Ingebrigtsen
     [not found]                                               ` <87pmn9txzo.fsf@gnus.org>
2022-02-28  8:59                                                 ` Lars Ingebrigtsen
     [not found]                                                 ` <87ee3ns6x0.fsf@gnus.org>
2022-02-28 12:28                                                   ` Eli Zaretskii
     [not found]                                                   ` <83y21vmaye.fsf@gnu.org>
2022-02-28 12:31                                                     ` Lars Ingebrigtsen
2022-02-28 12:35                                                       ` Lars Ingebrigtsen
     [not found]                                                       ` <877d9fnp7g.fsf@gnus.org>
2022-02-28 12:46                                                         ` Eli Zaretskii
2022-02-28 21:47                                                   ` Paul Eggert
     [not found]                                                   ` <78c5037a-ac96-e7be-532f-b1776ed25b2b@cs.ucla.edu>
2022-03-01 15:36                                                     ` Lars Ingebrigtsen
     [not found]                                                     ` <87a6e9n0rg.fsf@gnus.org>
2022-03-01 18:27                                                       ` Paul Eggert
     [not found]                                                       ` <d0cfd485-2be6-5873-64dc-2926c2f2bae0@cs.ucla.edu>
2022-03-01 18:52                                                         ` Lars Ingebrigtsen
     [not found]                                                         ` <87czj5ld38.fsf@gnus.org>
2022-03-02  1:00                                                           ` Paul Eggert
     [not found]                                                           ` <d24b1278-1aeb-e17d-ed06-7d36c5e3b68b@cs.ucla.edu>
2022-03-02  1:22                                                             ` Lars Ingebrigtsen
2022-03-02  1:43                                                               ` Lars Ingebrigtsen
     [not found]                                                             ` <87y21tjggy.fsf@gnus.org>
2022-03-02  2:12                                                               ` Paul Eggert
     [not found]                                                               ` <ab47871e-ad1e-e06d-c226-ab7b7c9bb857@cs.ucla.edu>
2022-03-03 13:46                                                                 ` Lars Ingebrigtsen
2022-03-03 13:49                                                                 ` Lars Ingebrigtsen
     [not found]                                                                 ` <87czj3jgdd.fsf@gnus.org>
2022-03-03 15:11                                                                   ` Eli Zaretskii
2022-03-04 15:28                                                                     ` Lars Ingebrigtsen
2022-03-04 16:47                                                                       ` Lars Ingebrigtsen
2022-03-04 19:46                                                                         ` Eli Zaretskii
2022-03-05 17:11                                                                           ` Lars Ingebrigtsen
2022-03-05 17:47                                                                             ` Eli Zaretskii
2022-03-05 18:06                                                                               ` Lars Ingebrigtsen
2022-03-09  3:01                                                                             ` Paul Eggert
     [not found]                                                                 ` <87h78fjgi7.fsf@gnus.org>
2022-03-03 21:40                                                                   ` Paul Eggert
     [not found]                                                                   ` <0756f1bd-1348-84ef-4eb8-4cc25eacf1dd@cs.ucla.edu>
2022-03-04 15:31                                                                     ` Lars Ingebrigtsen
2019-09-24  5:39                 ` Lars Ingebrigtsen

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