Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iIgNn-0006CI-Cg for pgsql-hackers@arkaria.postgresql.org; Thu, 10 Oct 2019 21:54:03 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1iIgNl-0007hE-QY for pgsql-hackers@arkaria.postgresql.org; Thu, 10 Oct 2019 21:54:01 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iIgNl-0007gz-9v for pgsql-hackers@lists.postgresql.org; Thu, 10 Oct 2019 21:54:01 +0000 Received: from mail-pf1-x42e.google.com ([2607:f8b0:4864:20::42e]) by makus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1iIgNi-0005Cy-Cg for pgsql-hackers@postgresql.org; Thu, 10 Oct 2019 21:54:00 +0000 Received: by mail-pf1-x42e.google.com with SMTP id a2so4749088pfo.10 for ; Thu, 10 Oct 2019 14:53:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=2ndquadrant-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=lv6C4l1P00ySWf6hzqUg3dfC48aqfMDn0LogEWktwmY=; b=MQY1CThr+HLW7eswTCLsuu3A3rBNvenTElj+rU6bbGOgb/NCfD99HJ3aQSjwNnzwHB uttwRRCuFrUm7LfEqoE1mEp/W3jvUlwAeuXmTdaE1olX9+75cEpKslg/V5b4nfANlBXe 2yqT6QmGrcwf+tOeeBot16q8ALAbLQBTR504KcyMm+aMOgvcRISG1meq3iVDY5VknDrC iIWlHwoMnyMa/mYHMwcR2LkLXae/LfX+n9JTFlA1T9LFZCP9Im2Yq6jEFYlIWoMpOrEM PRNdMiWnr0zuK71cZWKVuyGxLcsGG+b81wz8tsU6aHjg4ioLnwiz3EBCxWh3LWNUTjJi gDEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=lv6C4l1P00ySWf6hzqUg3dfC48aqfMDn0LogEWktwmY=; b=fogTqKgTv68d2q0qSj4+nlsqv4XDsph6dw34q0cY0+7Ut5gB+nggdCTtLaNSghaOkt Q/rLRpmQu0cJcNj5M83PXMoSj2FyHV/PkVSIoYQ7Dq+13e1F5S8TdmIqNTRdDn80YFjQ W2wy12lCVsWcpOAdmm2Y2W5X3WcnaxSRKKrqpoPmClWmLFN31xgvKTorxNUwQ03AEeNs Ns4cSL7KA52XeNb0A/Iy8GljN1V5E5lXMRCuJOGC9oPNrGCNCjF/KglOJPK9GOlTI6K/ MWYE/lajm1uZt6bmAY8oMcUJLemB3ycJpXegLjjhBxa8tHi/bI81PQoWwxmg3+GGRMp3 C4IA== X-Gm-Message-State: APjAAAUQiVWVCiO6RljuVShxicIoDdwkL08NEjlymX3pKtYbc1MgGcaM NGKzRTW/2tMh0HTAQQxmzkFCLg== X-Google-Smtp-Source: APXvYqx3syMubFCNSVhYOUBgo238EncykXgsuRfHYTZTgv2TSoHJSo9XZ5WQVoH3A+D6P6RmE7UwiA== X-Received: by 2002:a63:cf18:: with SMTP id j24mr13877457pgg.406.1570744436851; Thu, 10 Oct 2019 14:53:56 -0700 (PDT) Received: from 2ndQuadrant.com (c-67-169-212-172.hsd1.or.comcast.net. [67.169.212.172]) by smtp.gmail.com with ESMTPSA id w7sm5141093pjn.1.2019.10.10.14.53.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Oct 2019 14:53:56 -0700 (PDT) Date: Thu, 10 Oct 2019 14:53:51 -0700 From: Mark Wong To: Tom Lane Cc: Andrew Dunstan , Thomas Munro , Justin Pryzby , pgsql-hackers Subject: Re: stress test for parallel workers Message-ID: <20191010215351.GA6408@2ndQuadrant.com> References: <20190723174222.GO22387@telsasoft.com> <32179.1563919918@sss.pgh.pa.us> <17389.1563945314@sss.pgh.pa.us> <31032.1565152159@sss.pgh.pa.us> <18537.1570421268@sss.pgh.pa.us> <5350.1570743291@sss.pgh.pa.us> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5350.1570743291@sss.pgh.pa.us> User-Agent: Mutt/1.12.2 (2019-09-21) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On Thu, Oct 10, 2019 at 05:34:51PM -0400, Tom Lane wrote: > A nearer-term solution would be to reproduce this manually and > dig into the core. Mark, are you in a position to give somebody > ssh access to wobbegong's host, or another similarly-configured VM? > > (While at it, it'd be nice to investigate the infinite_recurse > failures we've been seeing on all those ppc64 critters ...) Yeah, whoever would like access, just send me your ssh key and login you'd like to use, and I'll get you set up. Regards, Mark -- Mark Wong 2ndQuadrant - PostgreSQL Solutions for the Enterprise https://www.2ndQuadrant.com/