From owner-freebsd-fs@FreeBSD.ORG Tue Oct 5 15:58:08 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 84E1E106566C; Tue, 5 Oct 2010 15:58:08 +0000 (UTC) (envelope-from yanegomi@gmail.com) Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 241D08FC17; Tue, 5 Oct 2010 15:58:07 +0000 (UTC) Received: by iwn34 with SMTP id 34so1803829iwn.13 for ; Tue, 05 Oct 2010 08:58:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=RAqk0+SeSYAJNS6EGKSvPed6R9+QoyAAlt1ANPDSOZo=; b=rHAFEpqThKQXseEBYDhs/Ul/UKwPMlubo5w0J2btLkLrlI3G7aLPc+iBOhIKMWUa7K 5Gi+wLVFseF0Evd6gXnpMUSvu1WY5/L1dde/MGo+cWo+6vEN3OrmqsD4s02j8pcQ3P9B aZFBBe6zNlvqkAHxJgNDnfKhKTPSq25iMb5+U= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=F+gYod09XdZE8gHa4A3i9PRcYqrL/Yp/p0vEZUHMF9G+2jSvE6TpfKxgegbcdKG7lx gLgvH9dYl/I1dTu4neTmWSLPXpN+cAxlqz7B9L3r0nru3MwMu6o0XLJp2HP7ZCcdO2hI UOqtF/1gpIEYm3uOzXPumGuuFtYvgLassKusE= MIME-Version: 1.0 Received: by 10.231.183.10 with SMTP id ce10mr12373147ibb.96.1286294287204; Tue, 05 Oct 2010 08:58:07 -0700 (PDT) Sender: yanegomi@gmail.com Received: by 10.231.184.3 with HTTP; Tue, 5 Oct 2010 08:58:07 -0700 (PDT) In-Reply-To: References: <20101004123725.65d09b9e.daichi@ongs.co.jp> <20101004144927.36822f07.daichi@ongs.co.jp> <20101005093826.17432b1e.daichi@ongs.co.jp> <20101005153410.598e4484.daichi@ongs.co.jp> <20101005175536.a67998ae.daichi@ongs.co.jp> Date: Tue, 5 Oct 2010 08:58:07 -0700 X-Google-Sender-Auth: H6sxQwLzCHNKeat0qtNKlqCf_AE Message-ID: From: Garrett Cooper To: Garrett Cooper Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org Subject: Re: fcntl always fails to delete lock file, and PID is always -6464 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Oct 2010 15:58:08 -0000 On Tue, Oct 5, 2010 at 7:52 AM, Garrett Cooper wrote: > On Tue, Oct 5, 2010 at 1:55 AM, Daichi GOTO wrote: >> On Tue, 5 Oct 2010 01:23:02 -0700 >> Garrett Cooper wrote: >>> 2010/10/4 Daichi GOTO : >>> > Thanks nice test tool :) =C2=A0And at last I got it excepting one mys= tery! >>> > >>> > On Mon, 4 Oct 2010 20:17:08 -0700 >>> > Garrett Cooper wrote: >>> >> Following through the same process on FreeBSD... >>> >> >>> >> Window 1: >>> >> $ ls -l /tmp/lockfile >>> >> ls: /tmp/lockfile: No such file or directory >>> >> $ ./test_fcntl >>> >> >>> >> Window 2: >>> >> >>> >> $ ls -l /tmp/lockfile >>> >> -rwsr-x--- =C2=A01 garrcoop =C2=A0wheel =C2=A00 Oct =C2=A04 20:14 /t= mp/lockfile >>> >> $ ./test_fcntl >>> >> test_fcntl: fcntl: Resource temporarily unavailable >>> > >>> > Just my mystery is as follow: >>> > >>> > Windows 1: >>> > % ./test_fcntl >>> > My pid: 43490 >>> > >>> > Windows 2: >>> > % ls -l /tmp/lockfile >>> > -r-sr-x--- =C2=A01 daichi =C2=A0wheel =C2=A00 10=E6=9C=88 =C2=A05 15:= 02 /tmp/lockfile =C2=A0 =C2=A0<--- is it weird, isn't it? >>> > % ./test_fcntl >>> > test_fcntl: open: Permission denied >>> > % >>> > >>> > Oops... What's wrong... /tmp is as follow: >>> > >>> > % mount | grep tmp >>> > /dev/ada0s1f on /tmp (ufs, local, noatime, soft-updates) >>> > % dumpfs /tmp | grep journal >>> > flags =C2=A0 soft-updates+journal >>> > % >>> > >>> > And working scene: >>> > >>> > Windows 2: >>> > % chmod u+w /tmp/lockfile >>> > % ls -l /tmp/lockfile >>> > -rwsr-x--- =C2=A01 daichi =C2=A0wheel =C2=A00 10=E6=9C=88 =C2=A05 15:= 22 /tmp/lockfile >>> > % ./test_fcntl >>> > My pid: 43646 >>> > test_fcntl: fcntl[1]: Resource temporarily unavailable >>> > PID=3D43490 has the lock >>> > % >>> >>> What's your umask and what are the permissions on /tmp? >> >> % ll / | grep tmp >> drwxrwxrwt =C2=A014 root =C2=A0wheel =C2=A0 =C2=A0 =C2=A01024 10=E6=9C= =88 =C2=A05 17:19 tmp >> % umask >> 022 >> % rm -f test >> % touch test >> % ll | grep test >> -rw-r--r-- =C2=A0 1 daichi =C2=A0wheel =C2=A0 =C2=A0 0 10=E6=9C=88 =C2= =A05 17:52 test >> % > > =C2=A0 =C2=A0The permissions look ok from my perspective, but the umask i= s > different, so you might want to try my umask to make sure that your > results match mine (and we need to check the requirements to determine > whether or not the behavior for FreeBSD's umask syscall is correct): > > $ ls -la /tmp/ | head -n 2 > total 462686 > drwxrwxrwt =C2=A051 root =C2=A0 =C2=A0 wheel =C2=A0 =C2=A0 =C2=A0 =C2=A0 = 11776 Oct =C2=A05 03:11 . > $ umask > 0022 > > =C2=A0 =C2=A0Where and how is /tmp mounted (is it a real partition, what > filesystem, etc)? > =C2=A0 =C2=A0BTW, when I change my umask to match your's I don't get the = same > results you do on my home machine: > > Window 1: > > $ umask 022 > $ ./test_fcntl > My pid: 17353 > > Window 2: > > $ ./test_fcntl > My pid: 17356 > test_fcntl: fcntl[1]: Resource temporarily unavailable > PID=3D17353 has the lock > $ ls -l /tmp/lockfile > -rwSr----- =C2=A01 gcooper =C2=A0wheel =C2=A00 Oct =C2=A05 07:49 /tmp/loc= kfile > > =C2=A0 =C2=A0Just to note, the tests before were run on the RHEL 4.8 box = with > the following info, and the FreeBSD box with the following info: > > Red Hat Enterprise Linux AS release 4 (Nahant Update 8) > Linux sjc-lds-102 2.6.9-89.0.11.ELsmp #1 SMP Mon Aug 31 11:00:34 EDT > 2009 x86_64 x86_64 x86_64 GNU/Linux > > FreeBSD bioshock.cisco.com 9.0-CURRENT FreeBSD 9.0-CURRENT #1 > r211767M: Sat Aug 28 00:28:45 PDT 2010 > garrcoop@bioshock.cisco.com:/usr/obj/usr/src/sys/BIOSHOCK =C2=A0amd64 > > =C2=A0 =C2=A0The tests above were run on a FreeBSD box with the following= info: > > FreeBSD bayonetta.local 9.0-CURRENT FreeBSD 9.0-CURRENT #9 r211309M: > Thu Aug 19 22:50:36 PDT 2010 > root@bayonetta.local:/usr/obj/usr/src/sys/BAYONETTA =C2=A0amd64 > > =C2=A0 =C2=A0On bayonetta /tmp is SUJ backed (probably should change that > though), and on bioshock it's not SUJ backed. And while this might be a good mental exercise, I think we're missing the original point of your bug: You were getting ECONNREFUSED because a socket was in `use', even though all instances of mozc_server were dead (at least that's the case with me). So the question I guess that's worth asking is: 1. What process/application does it need to establish a Unix style socket w= ith? 2. Why isn't that socket being cleaned up by the OS at exit? Thanks! -Garrett