From owner-freebsd-current@freebsd.org Fri Jun 15 09:09:59 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3C803100D4E4 for ; Fri, 15 Jun 2018 09:09:59 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: from mail-wm0-x243.google.com (mail-wm0-x243.google.com [IPv6:2a00:1450:400c:c09::243]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A3F4682528 for ; Fri, 15 Jun 2018 09:09:58 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: by mail-wm0-x243.google.com with SMTP id n5-v6so2545172wmc.5 for ; Fri, 15 Jun 2018 02:09:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ahJxAQAS5uC0TcdqILrVvxDYlqKtk8po+Vbvd92hOTs=; b=jQPdjlcXWEPl9JwriIdma7iZtNIZY0nfH5MyduhZ0yL3QcP88Mm/U2B/USeAZdepmX 8HggclB9fuWogw4iFP2Uf4RuJ3uUebhgkF6tj29VPIUklZwTr/d+ItszH9L4sq4WsAks le/Y8Oo9NKxy6/kjf99FKSb1YaeRmmApDU5oAE/ba1rs9uLPpF93wtVd6TpQqga9OK/z 5LEhLH9oF8oiORqkeaTlS3qYWJzg6iZU0Vcg+8fBtk2J7+gCINZxpBkidx8k4TtmmWxx xR4Fdm40L+5/xAPmcvsMQ+8+E1casCL58QmRJCllkahQRI6o5q/9/eqWO+KIAt+jVFRA 5mWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=ahJxAQAS5uC0TcdqILrVvxDYlqKtk8po+Vbvd92hOTs=; b=IOCQIm10cgxdIJO8LxuqjrguVYYqXevh1xSIUqn8M8578/+uCs06OIAppGCar/jtWr QG3607ogKI1InmA46/k4VjTIRnfRoU/aLqxG0dKnFYaWC+j7A/kycQLm/Pwyytw7NIdq iHEEaUErLI3hh2psXeXTQ+pfjzHs4TnGkrZCL/Qj8bTlO0X353BQ+herwhWV4vePKkKK DDkI4oWQb8xz3BN5qJ5RvLrSsrICHBkRf4BvDxUYQpvDrTJzIqV3nXXFkOSmGf55/4dX xsfYJPlypAgcd9RV/fP0UhRLt96Iu1rTtWk+faGLYDX9bf80jPaupWYyXrZs5/GID2IT Bp9w== X-Gm-Message-State: APt69E0QgC+JuTrIXmURT3qHADr2T7lzyjDXJ07OsXnkjMwPb/Ssdqwo 8xpR74Xd3464bQdA5vjefJllYQ== X-Google-Smtp-Source: ADUXVKIsBfbc5MMfnclp5MQ5R3UM7bh0jEWjnJezmI/xrew7ortnXp2+yo3pVWrerZrxDzEIkhBYjQ== X-Received: by 2002:a1c:d509:: with SMTP id m9-v6mr590891wmg.69.1529053797602; Fri, 15 Jun 2018 02:09:57 -0700 (PDT) Received: from pesky.lan (84.32.136.95.rev.vodafone.pt. [95.136.32.84]) by smtp.gmail.com with ESMTPSA id g105-v6sm9056805wrd.37.2018.06.15.02.09.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 15 Jun 2018 02:09:56 -0700 (PDT) Sender: Mark Johnston Date: Fri, 15 Jun 2018 05:09:54 -0400 From: Mark Johnston To: Kurt Jaeger Cc: FreeBSD current Subject: Re: swapping is completely broken in -CURRENT r334649? Message-ID: <20180615090954.GC32922@pesky.lan> References: <20180605181716.73b8ea91@ernst.home> <2925b27f-43cf-8813-eaa7-4f3d12bef8f0@FreeBSD.org> <20180605214808.GA94301@pesky> <20180615051025.GA79327@ns.kevlo.org> <20180615084022.GA32922@pesky.lan> <20180615084808.GF4028@home.opsec.eu> <20180615090358.GB32922@pesky.lan> <20180615090734.GG4028@home.opsec.eu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180615090734.GG4028@home.opsec.eu> User-Agent: Mutt/1.10.0 (2018-05-17) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jun 2018 09:09:59 -0000 On Fri, Jun 15, 2018 at 11:07:34AM +0200, Kurt Jaeger wrote: > Hi! > > > > > The change was committed as r334752. Are you seeing unexpected OOM > > > > kills on or after that revision? > > > > > > When I tried to run a qemu-based poudriere run yesterday on a r334918 > > > box, it killed a few processes outside of that run and did not > > > work out. > > > > > > I'm unsure it was because of that problem or a problem with qemu. > > > > How much memory and swap does the guest have? > > It's started by poudriere, I do not really know. > > > Were you consistently able to complete a run before? > > Two years ago, on a much lower version of FreeBSD, yes. > > I just started it again, and after a while the qemu-ppc64-static > was at approx. 23 GB memory and increasing, without much progress. I suspect it is a different issue then. > > If it's happening during a poudriere run, it may well have been a true > > OOM situation. The patch below prints a few stats to the dmesg before > > the kill. The output of that together with "sysctl vm" output should be > > enough to determine what's happening. > > > > diff --git a/sys/vm/vm_pageout.c b/sys/vm/vm_pageout.c > > index 264c98203c51..9c7ebcf451ec 100644 > > --- a/sys/vm/vm_pageout.c > > +++ b/sys/vm/vm_pageout.c > > @@ -1670,6 +1670,8 @@ vm_pageout_mightbe_oom(struct vm_domain *vmd, int page_shortage, > > * start OOM. Initiate the selection and signaling of the > > * victim. > > */ > > + printf("v_free_count: %u, v_inactive_count: %u\n", > > + vmd->vmd_free_count, vmd->vmd_pagequeues[PQ_INACTIVE].pq_cnt); > > vm_pageout_oom(VM_OOM_MEM); > > > > /* > > I'll have a look at this. > > -- > pi@opsec.eu +49 171 3101372 2 years to go !