From owner-freebsd-current@FreeBSD.ORG Thu Oct 24 12:01:34 2013 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 054972B4 for ; Thu, 24 Oct 2013 12:01:34 +0000 (UTC) (envelope-from outbackdingo@gmail.com) Received: from mail-ob0-x230.google.com (mail-ob0-x230.google.com [IPv6:2607:f8b0:4003:c01::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id C4F8A2885 for ; Thu, 24 Oct 2013 12:01:33 +0000 (UTC) Received: by mail-ob0-f176.google.com with SMTP id uy5so2156673obc.7 for ; Thu, 24 Oct 2013 05:01:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=zbAbz+udD43SZKBeT1gYrO/hzjYBXo7lt8lITcPprD0=; b=dTSqk2cTK3i6eyOQQqk+9CKvbaEouqIl3Tbc5rz+M8jZk6R4ZtGqNA3+JDRJ5Z3YvQ s8n1dSQD20eWzAB2rYlJqF8BCRKWqKb7N9r5bZV9GpVVKwRPfDpBSGSDt3pONLGPrlFw dGSYDe1UKtfYPsXt0Mn1Q0tZsEGDRaZv2P/cOxRX9hu5kbBliIUp+6Urqoh5H37JqRNE ycuaO941B9UuwWW8pcvawXomxkACT4KPKQi/aedfC1GMf9C+MeUQ9JuQTJ9zGRjxw944 6UpFSVF8XWdVxmwkwVOnOI23C3HQvHj9LFxHDEoQAQaTynf3iHLDdFmRG3Oa5r4x8cJ0 MYnw== MIME-Version: 1.0 X-Received: by 10.182.213.97 with SMTP id nr1mr1854593obc.48.1382616093051; Thu, 24 Oct 2013 05:01:33 -0700 (PDT) Received: by 10.76.19.115 with HTTP; Thu, 24 Oct 2013 05:01:32 -0700 (PDT) In-Reply-To: <5268F37E.9050004@citrix.com> References: <5268F37E.9050004@citrix.com> Date: Thu, 24 Oct 2013 08:01:32 -0400 Message-ID: Subject: Re: CUREENT issue with ballon.c From: Outback Dingo To: =?ISO-8859-1?Q?Roger_Pau_Monn=E9?= Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: current@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 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: Thu, 24 Oct 2013 12:01:34 -0000 On Thu, Oct 24, 2013 at 6:16 AM, Roger Pau Monn=E9 wr= ote: > On 24/10/13 03:02, Outback Dingo wrote: > > --- trap 0, rip =3D 0, rsp =3D 0xfffffe00002c6b70, rbp =3D 0 --- > > uma_zalloc_arg: zone "16" with the following non-sleepable locks held: > > exclusive sleep mutex balloon_lock (balloon_lock) r =3D 0 > > (0xffffffff816e9c58) locked @ /usr/src/sys/dev/xen/balloon/balloon.c:33= 9 > > exclusive sleep mutex balloon_mutex (balloon_mutex) r =3D 0 > > (0xffffffff816e9c38) locked @ /usr/src/sys/dev/xen/balloon/balloon.c:37= 3 > > KDB: stack backtrace: > > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame > > 0xfffffe00002c67c0 > > kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe00002c6870 > > witness_warn() at witness_warn+0x4a8/frame 0xfffffe00002c6930 > > uma_zalloc_arg() at uma_zalloc_arg+0x3b/frame 0xfffffe00002c69a0 > > malloc() at malloc+0x101/frame 0xfffffe00002c69f0 > > balloon_process() at balloon_process+0x44a/frame 0xfffffe00002c6a70 > > fork_exit() at fork_exit+0x84/frame 0xfffffe00002c6ab0 > > fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00002c6ab0 > > --- trap 0, rip =3D 0, rsp =3D 0xfffffe00002c6b70, rbp =3D 0 --- > > uma_zalloc_arg: zone "16" with the following non-sleepable locks held: > > exclusive sleep mutex balloon_lock (balloon_lock) r =3D 0 > > (0xffffffff816e9c58) locked @ /usr/src/sys/dev/xen/balloon/balloon.c:33= 9 > > exclusive sleep mutex balloon_mutex (balloon_mutex) r =3D 0 > > (0xffffffff816e9c38) locked @ /usr/src/sys/dev/xen/balloon/balloon.c:37= 3 > > KDB: stack backtrace: > > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame > > 0xfffffe00002c67c0 > > kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe00002c6870 > > witness_warn() at witness_warn+0x4a8/frame 0xfffffe00002c6930 > > uma_zalloc_arg() at uma_zalloc_arg+0x3b/frame 0xfffffe00002c69a0 > > malloc() at malloc+0x101/frame 0xfffffe00002c69f0 > > balloon_process() at balloon_process+0x44a/frame 0xfffffe00002c6a70 > > fork_exit() at fork_exit+0x84/frame 0xfffffe00002c6ab0 > > fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00002c6ab0 > > --- trap 0, rip =3D 0, rsp =3D 0xfffffe00002c6b70, rbp =3D 0 --- > > uma_zalloc_arg: zone "16" with the following non-sleepable locks held: > > Did you do anything specific to trigger the crash? Can you explain the > steps needed to reproduce it? > > just recompiled a kernel, and booted it scrolls continuously across the screen doesnt seem to ever stop.