From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from jenny.ondioline.org (jenny.ondioline.org [66.220.1.122]) by ozlabs.org (Postfix) with ESMTP id 7839ADDF05 for ; Tue, 5 Aug 2008 06:51:25 +1000 (EST) From: Paul Collins To: michael@ellerman.id.au Subject: Re: nfsd, v4: oops in find_acceptable_alias, ppc32 Linux, post-2.6.27-rc1 References: <87tze38vzt.fsf@burly.wgtn.ondioline.org> <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> Date: Tue, 05 Aug 2008 08:51:23 +1200 In-Reply-To: <1217860597.12535.2.camel@localhost> (Michael Ellerman's message of "Tue, 05 Aug 2008 00:36:37 +1000") Message-ID: <87hca05ws4.fsf@burly.wgtn.ondioline.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Neil Brown , "J. Bruce Fields" , 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: , 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. 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