From owner-freebsd-arm@freebsd.org  Mon Jun  4 07:54:06 2018
Return-Path: <owner-freebsd-arm@freebsd.org>
Delivered-To: freebsd-arm@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 5A772FE19E3
 for <freebsd-arm@mailman.ysv.freebsd.org>;
 Mon,  4 Jun 2018 07:54:06 +0000 (UTC)
 (envelope-from fbsd@www.zefox.net)
Received: from www.zefox.net (www.zefox.net [50.1.20.27])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "www.zefox.org", Issuer "www.zefox.org" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id CB49978B63
 for <freebsd-arm@freebsd.org>; Mon,  4 Jun 2018 07:54:05 +0000 (UTC)
 (envelope-from fbsd@www.zefox.net)
Received: from www.zefox.net (localhost [127.0.0.1])
 by www.zefox.net (8.15.2/8.15.2) with ESMTPS id w547sAtN077072
 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Mon, 4 Jun 2018 00:54:11 -0700 (PDT)
 (envelope-from fbsd@www.zefox.net)
Received: (from fbsd@localhost)
 by www.zefox.net (8.15.2/8.15.2/Submit) id w547s9ZH077071;
 Mon, 4 Jun 2018 00:54:09 -0700 (PDT) (envelope-from fbsd)
Date: Mon, 4 Jun 2018 00:54:09 -0700
From: bob prohaska <fbsd@www.zefox.net>
To: Warner Losh <imp@bsdimp.com>
Cc: Erich Dollansky <freebsd.ed.lists@sumeritec.com>, freebsd-arm@freebsd.org, 
 bob prohaska <fbsd@www.zefox.net>
Subject: OOM errors, was Re: panic: Assertion td->td_lock == TDQ_LOCKPTR(tdq)
 failed at /usr/src/sys/kern/sched_ule.c:2137
Message-ID: <20180604075409.GA76017@www.zefox.net>
References: <op.zjvyeypwkndu52@klop.ws> <20180601154153.GA62632@www.zefox.net>
 <20180602091606.63a1ab37.freebsd.ed.lists@sumeritec.com>
 <20180602150549.GA68197@www.zefox.net>
 <CANCZdfq+Fp6=NDSQB0G9z1L7StcueupzvUiuNs9L-TgTQL=wzA@mail.gmail.com>
 <20180602193255.GA68908@www.zefox.net>
 <CANCZdfpJ7hL_dnJd5kyMkhdT21LnXWxch7ztmN+rTk90F53WjQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CANCZdfpJ7hL_dnJd5kyMkhdT21LnXWxch7ztmN+rTk90F53WjQ@mail.gmail.com>
User-Agent: Mutt/1.5.24 (2015-08-30)
X-BeenThere: freebsd-arm@freebsd.org
X-Mailman-Version: 2.1.26
Precedence: list
List-Id: "Porting FreeBSD to ARM processors." <freebsd-arm.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arm/>
List-Post: <mailto:freebsd-arm@freebsd.org>
List-Help: <mailto:freebsd-arm-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 04 Jun 2018 07:54:06 -0000

> 
> > On Sat, Jun 02, 2018 at 09:14:18AM -0600, Warner Losh wrote:
> > >
> > > Do you have r334508? It fixes the OOM falsely triggering.
> > >
> 
The kernel is now up to 334538, but I'm still seeing OOM kills, like this:

Jun  4 00:01:57 www kernel: pid 27824 (llvm-tblgen), uid 0, was killed: out of swap space
Jun  4 00:01:57 www kernel: pid 27828 (llvm-tblgen), uid 0, was killed: out of swap space
Jun  4 00:01:57 www kernel: pid 27832 (llvm-tblgen), uid 0, was killed: out of swap space
Jun  4 00:01:57 www kernel: pid 27830 (llvm-tblgen), uid 0, was killed: out of swap space
Jun  4 00:01:57 www kernel: pid 27610 (make), uid 0, was killed: out of swap space


After restarting the -j4 buildworld with -DNO_CLEAN it appeared that
swap use peaked around 129 MB. Four instances of llvm-tblgen entered
state pfault at roughly the same time  swap use peaked and then two
were killed. Apparently the remaining pair died in sympathy.

Have you any idea what I might be doing wrong?

Thanks for reading,

bob prohaska
`