From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id D3A4A91585 for ; Mon, 27 Mar 2023 10:27:03 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id AE1A52DBAF for ; Mon, 27 Mar 2023 10:26:33 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Mon, 27 Mar 2023 10:26:33 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 050E746EF2 for ; Mon, 27 Mar 2023 10:26:33 +0200 (CEST) From: Dominik Csapak To: pve-devel@lists.proxmox.com Date: Mon, 27 Mar 2023 10:26:32 +0200 Message-Id: <20230327082632.1295960-1-d.csapak@proxmox.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.010 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pve-devel] [PATCH common] fix #4615: RESTEnvironment: correctly detect AnyEvent in SIGCHLD handler X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Mar 2023 08:27:03 -0000 we assumed that the 'priv' and 'pub' RESTEnvironment types always contained an AnyEvent eventloop, but this is actually not the case in pvestatd and pvescheduler. When we wrongly determined that, it depended on the used model that AnyEvent used (and autodetected) if it worked or not. With AnyEvent::Impl::Perl it did not make problems (and seemingly worked by accident), but when using AnyEvent::Impl::EV (which is autodetected and used when libev-perl is installed) it interfered with our SIG_CHLD handlers and only ever called them once. (Not clear why this happens, maybe because AnyEvent is not setup correctly). This patch uses $AnyEvent::MODEL as a detection instead since this is `undef` until the first AnyEvent watcher is created, which should be only the case where we really use AnyEvent, such as pveproxy and pvedaemon. Fixes: 6870afa ("RESTEnvironment: better SIGCHLD handling in AnyEvent event loop") Signed-off-by: Dominik Csapak --- src/PVE/RESTEnvironment.pm | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/src/PVE/RESTEnvironment.pm b/src/PVE/RESTEnvironment.pm index c258b1e..89def38 100644 --- a/src/PVE/RESTEnvironment.pm +++ b/src/PVE/RESTEnvironment.pm @@ -112,12 +112,10 @@ sub init { die "unknown environment type" if !$type || $type !~ m/^(cli|pub|priv|ha)$/; - my $has_anyevent = $type eq 'pub' || $type eq 'priv'; - $SIG{CHLD} = sub { - # when we're in an api server, we have to postpone the call to worker_reaper, otherwise it + # when we're using AnyEvent, we have to postpone the call to worker_reaper, otherwise it # might interfere with running api calls - if ($has_anyevent) { + if (defined($AnyEvent::MODEL)) { AnyEvent::postpone { $worker_reaper->() }; } else { $worker_reaper->(); -- 2.30.2