From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from fieldses.org (mail.fieldses.org [66.93.2.214]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 1B7E1DDF69 for ; Tue, 5 Aug 2008 06:59:19 +1000 (EST) Date: Mon, 4 Aug 2008 16:59:08 -0400 To: Paul Collins Subject: Re: nfsd, v4: oops in find_acceptable_alias, ppc32 Linux, post-2.6.27-rc1 Message-ID: <20080804205908.GA29890@fieldses.org> References: <20080802184554.GB715@fieldses.org> <87abfvm4cc.fsf@burly.wgtn.ondioline.org> <877iayy4qc.fsf@burly.wgtn.ondioline.org> <18581.40960.737792.454035@notabene.brown> <87r696l1yo.fsf@burly.wgtn.ondioline.org> <18582.32935.501672.689845@notabene.brown> <87fxpll5zq.fsf@burly.wgtn.ondioline.org> <87y73dcd60.fsf@burly.wgtn.ondioline.org> <1217860597.12535.2.camel@localhost> <87hca05ws4.fsf@burly.wgtn.ondioline.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <87hca05ws4.fsf@burly.wgtn.ondioline.org> From: "J. Bruce Fields" Cc: Neil Brown , nfsv4@linux-nfs.org, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, Aug 05, 2008 at 08:51:23AM +1200, Paul Collins wrote: > Michael Ellerman writes: > > > On Mon, 2008-08-04 at 22:00 +1200, Paul Collins wrote: > >> Paul Collins writes: > >> > >> > Neil Brown writes: > >> >> Could you try removing the 'static' declaration for nfsd_acceptable > >> >> and recompile? > >> >> Or maybe try a different compiler? > >> > > >> > I will give these a try this evening. > >> > >> I built myself a nice new cross compiler: > >> > >> powerpc-linux-gnu-gcc-4.1 (GCC) 4.1.3 20080623 (prerelease) (Debian 4.1.2-23) > >> > >> and rebuilt 94ad374a0751f40d25e22e036c37f7263569d24c. Running that on > >> the server and 2.6.26 on the client, I got yet another Oops. This one > >> locked the machine up pretty good, so all I have is a picture: > >> > >> http://ondioline.org/~paul/DSCN1608.JPG > > > > Wow. > > > > Can you try building a kernel on the server? ie. not over NFS. > > Built kernels on the server with native gcc 4.2.4 and 4.3.1 and repeated > the build test. But the build test itself was over nfs? (And you can't reproduce the same problem without nfs?) --b. > Both of them threw an Oops with traces like the ones > we've seen before. Also, because now's about time to start shooting in > the dark, I tried a cross-built kernel with CC_OPTIMIZE_FOR_SIZE > disabled. That one Oopses too. Also I reseated the server's memory. > > Although I've been able to build kernels over NFS with 2.6.26 on the > server, I've just realized I haven't tried to stress it much. I'll try > a build loop when the server's running 2.6.26 this evening. > > -- > Paul Collins > Wellington, New Zealand > > Dag vijandelijk luchtschip de huismeester is dood