From owner-freebsd-stable@FreeBSD.ORG Wed Apr 15 12:02:54 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8B3BA1065764 for ; Wed, 15 Apr 2009 12:02:53 +0000 (UTC) (envelope-from oleg@opentransfer.com) Received: from smh01.opentransfer.com (smh01.opentransfer.com [71.18.216.112]) by mx1.freebsd.org (Postfix) with ESMTP id 4C61F8FC17 for ; Wed, 15 Apr 2009 12:02:53 +0000 (UTC) (envelope-from oleg@opentransfer.com) Received: by smh01.opentransfer.com (Postfix, from userid 8) id D4C7910229DE; Wed, 15 Apr 2009 08:02:27 -0400 (EDT) X-Spam-Checker-Version: SpamAssassin 3.2.4 (2008-01-01) on smh01.opentransfer.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=RDNS_NONE autolearn=disabled version=3.2.4 Received: from webmail6.opentransfer.com (unknown [69.49.230.6]) by smh01.opentransfer.com (Postfix) with ESMTP id 908EA10217EC; Wed, 15 Apr 2009 08:02:27 -0400 (EDT) Received: from webmail6.opentransfer.com (webmail6.opentransfer.com [127.0.0.1]) by webmail6.opentransfer.com (8.13.8/8.13.8) with ESMTP id n3FC2pLQ028784; Wed, 15 Apr 2009 07:02:51 -0500 Received: (from nobody@localhost) by webmail6.opentransfer.com (8.13.8/8.13.8/Submit) id n3FC2nHd028780; Wed, 15 Apr 2009 15:02:49 +0300 X-Authentication-Warning: webmail6.opentransfer.com: nobody set sender to oleg@opentransfer.com using -f Received: from oleg.ecommerce-dev.com (oleg.ecommerce-dev.com [193.142.124.7]) by webmail.opentransfer.com (Horde MIME library) with HTTP; for ; Wed, 15 Apr 2009 15:02:49 +0300 Message-ID: <20090415150249.19ecof1i8gkos8kg@webmail.opentransfer.com> Date: Wed, 15 Apr 2009 15:02:49 +0300 From: "Oleg V. Nauman" To: Ronald Klop References: <20090414160411.042472seockg0css@webmail.opentransfer.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=KOI8-R; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable User-Agent: Internet Messaging Program (IMP) H3 (4.1.4) X-Originating-IP: 193.142.124.7 Cc: freebsd-stable@freebsd.org Subject: Re: 7.2-PRERELEASE: make process waiting indefinitely X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Apr 2009 12:03:08 -0000 Quoting Ronald Klop : > On Tue, 14 Apr 2009 15:04:11 +0200, Oleg V. Nauman > wrote: > >> >> Have experienced today strange issue with my fresh RELENG_7 ( =20 >> sources from yesterday April 13, userland and kernel in sync ) - =20 >> sometimes some processes stop running without any visible reason. =20 >> Have seen it twice today during KDE compilation - make process just =20 >> waiting for something while nothing else compiles or some other =20 >> way prevents this process from running ( no SIGSTOP performed, no =20 >> Ctrl-S performed on console). Well it possible related to ( or =20 >> triggered by ) new ports compilation feature for SMP machines ( =20 >> most of KDE port marked as MAKE_JOBS_SAFE=3Dyes ) but anyway this =20 >> stuck process behavior is strange. kill -SIGCONT not helps, but it =20 >> killable ( Ctrl-C helps at least ) >> Well some info related to this process: >> procstat -t 63472 output: >> >> PID TID COMM TDNAME CPU PRI STATE WCHAN >> 63472 100059 make - 1 92 sleep wait >> >> procstat -kk 63472 output: >> >> PID TID COMM TDNAME KSTACK >> 63472 100059 make - mi_switch+0x2c8 =20 >> sleepq_switch+0xd9 sleepq_catch_signals+0x239 sleepq_wait_sig+0x14 =20 >> _sleep+0x307 kern_wait+0xa36 wait4+0x3b syscall+0x2b3 =20 >> Xint0x80_syscall+0x20 >> >> Some related sysctls output: >> >> kern.smp.cpus: 2 >> kern.smp.disabled: 0 >> kern.smp.active: 1 >> >> uname -msr output: >> FreeBSD 7.2-PRERELEASE i386 > > It sounds like > http://www.mail-archive.com/freebsd-stable@freebsd.org/msg102628.html . > There are some tips in that mailthread about debugging it. Thank you. Looks like it was the same issue. > > Ronald.