X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:references:date:in-reply-to :message-id:mime-version:content-type; q=dns; s=default; b=xT8tu b9vImDxMkVMhebxevvMM0frrHCZpq0QdXnD5fqWr2NOy8fPSgUWd/s0QfunuuJ6J zI81xTPj4CqmApNbml2ACPJ3lh18vHM/5YZw2+5ZvN0Yr0qtsSR93sRW4jMGmlaz HqFRA4/qJrFVndkI+Pk6q8Sc1vc/TqPyQgkc/Y= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:references:date:in-reply-to :message-id:mime-version:content-type; s=default; bh=kY10OP/UimP QhYuptRRQZ8b6Ms4=; b=ea1ZR4yo2jL92rQO7PLV2NFOcNeiVSNaBEWjBC8PPYx J8xpFgBcJfcPLZUtT6xSL3spte67m/xcsZWqy1DYsmdBTldtowokUJuzZtJC3lJz FEslfcrdeeiEEGzsDfdI8Nf/EDSGfhhft0S2NWU/BRaPE7FwvBWKuQMX1afSxQuw = Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.2 spammy=kick, retry, Hx-spam-relays-external:ESMTPA X-HELO: vsmx009.vodafonemail.xion.oxcs.net From: Achim Gratz To: cygwin AT cygwin DOT com Subject: Re: Odd hang in python waiting for child; strace wakes hung process? References: <877eq5fedf DOT fsf AT Rainer DOT invalid> Date: Thu, 22 Mar 2018 18:29:44 +0100 In-Reply-To: (Dan Kegel's message of "Wed, 21 Mar 2018 15:07:28 -0700") Message-ID: <87in9o81dj.fsf@Rainer.invalid> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-VADE-STATUS: LEGIT Dan Kegel writes: > 1) kill -CONT the-pid doesn't do anything, nor does kill -9. It's > truly wedged. No, you send CONT to all processes (like 'pkill -CONT .'), it seems that this gets whatever was wedged enough of a kick to retry or time out and then it (often, not always) it seems to start reaping processes again and the start to vanish. You can tell you have one of these when just doing a ps takes much longer than usual when it hits those processes. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ SD adaptations for KORG EX-800 and Poly-800MkII V0.9: http://Synth.Stromeko.net/Downloads.html#KorgSDada -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple