From debbugs-submit-bounces@debbugs.gnu.org Sat Jul 23 15:08:35 2022 Received: (at submit) by debbugs.gnu.org; 23 Jul 2022 19:08:35 +0000 Received: from localhost ([127.0.0.1]:46308 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oFKUM-00086I-OF for submit@debbugs.gnu.org; Sat, 23 Jul 2022 15:08:35 -0400 Received: from lists.gnu.org ([209.51.188.17]:55058) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oFKUK-000868-EJ for submit@debbugs.gnu.org; Sat, 23 Jul 2022 15:08:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55946) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oFKUK-0001No-9f for guix-patches@gnu.org; Sat, 23 Jul 2022 15:08:32 -0400 Received: from xavier.telenet-ops.be ([2a02:1800:120:4::f00:14]:49166) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oFKUH-0002rS-EQ for guix-patches@gnu.org; Sat, 23 Jul 2022 15:08:32 -0400 Received: from localhost.localdomain ([IPv6:2a02:1811:8c09:9d00:5dba:d409:33f7:a16]) by xavier.telenet-ops.be with bizsmtp id yj8Q2700920ykKC01j8RRL; Sat, 23 Jul 2022 21:08:25 +0200 From: Maxime Devos To: guix-patches@gnu.org Subject: [PATCH] =?UTF-8?q?guile-fibers:=20Backport=20the=20=E2=80=98epoll?= =?UTF-8?q?=20instance=20is=20dead=E2=80=99=20bugfix.?= Date: Sat, 23 Jul 2022 21:08:23 +0200 Message-Id: <20220723190823.8553-1-maximedevos@telenet.be> X-Mailer: git-send-email 2.37.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telenet.be; s=r22; t=1658603305; bh=cngd433NvasBbz4LB7PKs1sJAxMZJlE8caQ4kYW0RYE=; h=From:To:Cc:Subject:Date; b=asI8GqGRFkJ+0uP/QWnnXmbYkL/QRB1RN8dKrHm4PKFMbsZI1Y6H64LUAm7+HmMnL L79/26Rg92QG5cjGE+hoGUyEDp6L3BV9mIcBMSbh1VDKnLAs0IbeVXkTufUMgFAzDR Y7veG4XwakGKe41FKEM55Q0vsHetGYqJwcjvw5Ckfu4fw7FKvKM0enc9lEVHj4LxPv VI1SZWtHM1/Dw17i7CB1TAERqM+u+LjbXyC0Uynodgs/G/TrFiKvB/GkkQeW/6YRMF S0lcGIIRv5BW3C3s91egDJJk4ZBRpYdHaczda20hP183Al+dFvJ8MKbkzCDjpHtzmh 7Bosr1ey/AERg== Received-SPF: pass client-ip=2a02:1800:120:4::f00:14; envelope-from=maximedevos@telenet.be; helo=xavier.telenet-ops.be X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.2 (/) X-Debbugs-Envelope-To: submit Cc: Maxime Devos X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.3 (--) This fixes some indeterministic test failures for gnunet-scheme observed while developing gnunet-scheme. The following checks were made: All dependents compile for x86_64: $ ./pre-inst-env guix build shepherd gnunet-scheme guix-build-coordinator nar-herder guix-data-service guile-fibers --system=x86_64-linux Everything except guix-build-coordinator (which depends on the non-cross-compilable sqitch) cross-compile from x86_64 to aarch64-linux-gnu: $ ./pre-inst-env guix build shepherd gnunet-scheme nar-herder guile-fibers --system=x86_64-linux --target=aarch64-linux-gnu I tried testing for reproducibility but the check phase took to long. However, you can compare the hash you get against the hash I got: $ ./pre-inst-env guix hash --serializer=nar $(./pre-inst-env guix build guile-fibers --no-grafts --system=x86_64-linux) 0qsaqx27b6q2s22h7y93417ijpkwl6gc1fhhck8aha6bvmawk5h0 I tried an emulated build for another architecture, but there the tests took overly long. There were no lint warnings for guile-fibers. * gnu/packages/patches/guile-fibers-epoll-instance-is-dead.patch: New patch. * gnu/local.mk (dist_patch_DATA): Register the patch. * gnu/packages/guile-xyz.scm (guile-fibers)[source]{patches}: Use the patch. --- gnu/local.mk | 1 + gnu/packages/guile-xyz.scm | 3 +- .../guile-fibers-epoll-instance-is-dead.patch | 99 +++++++++++++++++++ 3 files changed, 102 insertions(+), 1 deletion(-) create mode 100644 gnu/packages/patches/guile-fibers-epoll-instance-is-dead.patch diff --git a/gnu/local.mk b/gnu/local.mk index 412d512775..64776792b2 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -1241,6 +1241,7 @@ dist_patch_DATA = \ %D%/packages/patches/guile-ac-d-bus-fix-tests.patch \ %D%/packages/patches/guile-cross-compilation.patch \ %D%/packages/patches/guile-fibers-destroy-peer-schedulers.patch \ + %D%/packages/patches/guile-fibers-epoll-instance-is-dead.patch \ %D%/packages/patches/guile-fibers-wait-for-io-readiness.patch \ %D%/packages/patches/guile-gdbm-ffi-support-gdbm-1.14.patch \ %D%/packages/patches/guile-git-adjust-for-libgit2-1.2.0.patch \ diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm index 2456509b97..59cd8d0096 100644 --- a/gnu/packages/guile-xyz.scm +++ b/gnu/packages/guile-xyz.scm @@ -619,7 +619,8 @@ (define-public guile-fibers-1.1 (base32 "0ll63d7202clapg1k4bilbnlmfa4qvpjnsd7chbkka4kxf5klilc")) (patches - (search-patches "guile-fibers-wait-for-io-readiness.patch")))) + (search-patches "guile-fibers-wait-for-io-readiness.patch" + "guile-fibers-epoll-instance-is-dead.patch")))) (build-system gnu-build-system) (native-inputs (list texinfo pkg-config autoconf automake libtool diff --git a/gnu/packages/patches/guile-fibers-epoll-instance-is-dead.patch b/gnu/packages/patches/guile-fibers-epoll-instance-is-dead.patch new file mode 100644 index 0000000000..ba191f765d --- /dev/null +++ b/gnu/packages/patches/guile-fibers-epoll-instance-is-dead.patch @@ -0,0 +1,99 @@ +From 5db4077e9f5166033637d2af9532ec6144b85646 Mon Sep 17 00:00:00 2001 +From: Maxime Devos +Date: Thu, 30 Jun 2022 14:21:47 +0000 +Subject: [PATCH 1/2] Fix behaviour of 'epoll-wake!' after 'run-fibers'. + +This avoids the "epoll instance is dead" error noticed in +GNUnet-Scheme's test suite, as reported at +. +A test is added in the next commit. + +This patch has been applied upstream, but there hasn't been +a new release yet at time of writing. + +* fibers/epoll.scm (epoll-wake!)[dead]: Instead of throwing an error, +just return #t. +--- + fibers/epoll.scm | 8 +++++++- + 1 file changed, 7 insertions(+), 1 deletion(-) + +diff --git a/fibers/epoll.scm b/fibers/epoll.scm +index d26db4d..eb63242 100644 +--- a/fibers/epoll.scm ++++ b/fibers/epoll.scm +@@ -1,6 +1,7 @@ + ;; epoll + + ;;;; Copyright (C) 2016 Andy Wingo ++;;;; Copyright (C) 2022 Maxime Devos + ;;;; + ;;;; This library is free software; you can redistribute it and/or + ;;;; modify it under the terms of the GNU Lesser General Public +@@ -135,7 +136,12 @@ epoll wait (if appropriate)." + ('waiting + (primitive-epoll-wake (fileno (epoll-wake-write-pipe epoll)))) + ('not-waiting #t) +- ('dead (error "epoll instance is dead")))) ++ ;; This can happen if a fiber was waiting on a condition and ++ ;; run-fibers completes before the fiber completes and afterwards ++ ;; the condition is signalled. In that case, we don't have to ++ ;; resurrect the fiber or something, we can just do nothing. ++ ;; (Bug report: https://github.com/wingo/fibers/issues/61) ++ ('dead #t))) + + (define (epoll-default-folder fd events seed) + (acons fd events seed)) + +From c01d3853eb56ea4adacc31f51f6e917f8c0abe1c Mon Sep 17 00:00:00 2001 +From: Maxime Devos +Date: Thu, 30 Jun 2022 14:18:36 +0000 +Subject: [PATCH 2/2] Test for issue #61. + +* tests/conditions.scm: Add a test. +--- + tests/conditions.scm | 20 ++++++++++++++++++++ + 1 file changed, 20 insertions(+) + +diff --git a/tests/conditions.scm b/tests/conditions.scm +index 505c42a..179605a 100644 +--- a/tests/conditions.scm ++++ b/tests/conditions.scm +@@ -1,6 +1,7 @@ + ;; Fibers: cooperative, event-driven user-space threads. + + ;;;; Copyright (C) 2016 Free Software Foundation, Inc. ++;;;; Copyright (C) 2022 Maxime Devos + ;;;; + ;;;; This library is free software; you can redistribute it and/or + ;;;; modify it under the terms of the GNU Lesser General Public +@@ -21,6 +22,7 @@ + #:use-module (fibers) + #:use-module (fibers conditions) + #:use-module (fibers operations) ++ #:use-module (fibers scheduler) + #:use-module (fibers timers)) + + (define failed? #f) +@@ -78,4 +80,22 @@ + (wait cv) + #t)) + ++;; Make a condition, wait for it inside a fiber, let the fiber abruptly ++;; terminate and signal the condition afterwards. This tests for the bug ++;; noticed at . ++(assert-equal #t ++ (let ((cv (make-condition))) ++ (run-fibers ++ (lambda () ++ (spawn-fiber (lambda () (wait cv))) ++ (yield-current-task)) ; let the other fiber wait forever ++ ;; This test relies on not draining -- this is the default, ++ ;; but let's make this explicit. ++ #:drain? #false ; ++ ;; For simplicity, disable concurrency and preemption. ++ ;; That way, we can use 'yield-current-task' instead of an ++ ;; arbitrary sleep time. ++ #:hz 0 #:parallelism 1) ++ (signal-condition! cv))) ++ + (exit (if failed? 1 0)) base-commit: d519305d83d08058e4def2c4d72fe62102d9599d -- 2.37.0 From debbugs-submit-bounces@debbugs.gnu.org Mon Aug 15 09:52:46 2022 Received: (at 56728-done) by debbugs.gnu.org; 15 Aug 2022 13:52:47 +0000 Received: from localhost ([127.0.0.1]:41309 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oNaW7-0001m2-P4 for submit@debbugs.gnu.org; Mon, 15 Aug 2022 09:52:46 -0400 Received: from eggs.gnu.org ([209.51.188.92]:45682) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oNaW5-0001ln-HL for 56728-done@debbugs.gnu.org; Mon, 15 Aug 2022 09:52:30 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:38952) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oNaVz-0007Ps-VU; Mon, 15 Aug 2022 09:52:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=2ypaUS1p8XQ4HMBvoCufywRNh7mSKcPY0R3mD0cZZ7c=; b=aDkNBK9bOur+YanBKuOn qy0sANtHUXxgMKzc4EQey/TBNnkKFChB0NCmNS/LQPH4yW+NhBA6/sJ8+8a+RAG3mWAbhwQZI09/v jvBOcOSxHT7LeFBdi11mnNvKmx/79eIRv4rGCb3fAyFdMFYVo8Q6QGfA/+ecSsvDoGNgGatGtWfPT 8zvvYAdDd+FvgKCXDEC/7LwvXij4h21vcgRXyaS/Nt2YqkY+r5EgEDDCQ/6Zfgfd8o8lmHp2ZcRur BmQFlJF6uPmUEXpp/vKTHfn6w1ohswd86xArz8jXG39FivzobCDcBw2D/hzCM4tNkYPVJGwQjWxWz bVDdWU93N4Xr4A==; Received: from 2a02-8429-81d2-3d01-94c9-8097-ea5c-2775.rev.sfr.net ([2a02:8429:81d2:3d01:94c9:8097:ea5c:2775]:60132 helo=meije) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oNaVy-00075B-Il; Mon, 15 Aug 2022 09:52:22 -0400 From: Mathieu Othacehe To: Maxime Devos Subject: Re: bug#56728: [PATCH] guile-fibers: Backport the =?utf-8?Q?=E2=80=98epoll?= instance is =?utf-8?Q?dead=E2=80=99?= bugfix. References: <20220723190823.8553-1-maximedevos@telenet.be> Date: Mon, 15 Aug 2022 15:52:18 +0200 In-Reply-To: <20220723190823.8553-1-maximedevos@telenet.be> (Maxime Devos's message of "Sat, 23 Jul 2022 21:08:23 +0200") Message-ID: <87k079d371.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 56728-done Cc: 56728-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) > * gnu/packages/patches/guile-fibers-epoll-instance-is-dead.patch: New patch. > * gnu/local.mk (dist_patch_DATA): Register the patch. > * gnu/packages/guile-xyz.scm (guile-fibers)[source]{patches}: Use the patch. Pushed, thanks, Mathieu From unknown Sat Jun 21 03:31:47 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Tue, 13 Sep 2022 11:24:06 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator