Date: Sun, 01 Jul 2012 20:33:09 +0200 From: Andreas Tobler <andreast@FreeBSD.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r237367 - head/sys/fs/nfsclient Message-ID: <4FF097E5.8030909@FreeBSD.org> In-Reply-To: <20120701170543.GP2337@deviant.kiev.zoral.com.ua> References: <201206210926.q5L9Q6nR002030@svn.freebsd.org> <4FF03316.5050609@FreeBSD.org> <20120701120408.GM2337@deviant.kiev.zoral.com.ua> <4FF0528E.50002@FreeBSD.org> <20120701134132.GO2337@deviant.kiev.zoral.com.ua> <4FF05724.3050904@FreeBSD.org> <20120701170543.GP2337@deviant.kiev.zoral.com.ua>
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On 01.07.12 19:05, Konstantin Belousov wrote: > On Sun, Jul 01, 2012 at 03:56:52PM +0200, Andreas Tobler wrote: >> On 01.07.12 15:41, Konstantin Belousov wrote: >>> On Sun, Jul 01, 2012 at 03:37:18PM +0200, Andreas Tobler wrote: >>>> On 01.07.12 14:04, Konstantin Belousov wrote: >>>>> On Sun, Jul 01, 2012 at 01:23:02PM +0200, Andreas Tobler wrote: >>>>>> On 21.06.12 11:26, Konstantin Belousov wrote: >>>>>>> Author: kib >>>>>>> Date: Thu Jun 21 09:26:06 2012 >>>>>>> New Revision: 237367 >>>>>>> URL: http://svn.freebsd.org/changeset/base/237367 >>>>>>> >>>>>>> Log: >>>>>>> Enable deadlock avoidance code for NFS client. >>>>>> >>>>>> >>>>>> Hm, since this commit I fail with my nfs installworld/kernel. >>>>>> >>>>>> I have a builder which installs world/kernel to a nfs mounted directory. >>>>>> Namely used for cross builds. >>>>>> >>>>>> Now since this commit I get the following when I install kernel to the >>>>>> nfs directory: >>>>>> >>>>>> .. >>>>>> install -o root -g wheel -m 555 zfs.ko.symbols >>>>>> /netboot/sparc64/boot/kernel >>>>>> install: /netboot/sparc64/boot/kernel/zfs.ko.symbols: No such file or >>>>>> directory >>>>>> *** [_kmodinstall] Error code 71 >>>>>> .. >>>>>> >>>>>> The file is there, a local install of the tree works without problems. >>>>>> Reverting to r237366 also makes it work again. >>>>>> >>>>>> The server is a -CURRENT, r237880, The client, -CURRENT too. >>>>>> >>>>>> How can I help to track down the real issue? >>>>> >>>>> Is it always the same file in the install procedure which causes the >>>>> failure ? Even more, is the failure pattern always the same ? >>>> >>>> I'd say so yes. When installing a kernel onto a nfs mounted fs then >>>> always (in my cases) the zfs.ko.symbols was the failing pattern. >>>> I tried ppc64 and sparc64 as target. With both it was the above file. >>>> >>>> When doing a installworld, it was, also in both cases, ppc64/sparc64, >>>> the cc1 in libexec which failed. >>>> >>>>> Might be, start with ktrace-ing the whole make invocation, including >>>>> the children processes. >>>> >>>> Some recipes how to start? >>> ktrace -o <file on local fs> -i make installkernel >>> Then kdump and cut the lines around relevant failure. >> >> ktrace -f, right? > Right, but without -i it is useless. Ah, yes, seems clear now after reading the man page. >> I placed the whole kdump here: >> >> http://people.freebsd.org/~andreast/dumped_installkernel.log >> >> It is not clear to me where the failure starts :) > Because logs do not contain tracepoints from the children. > See above about -i. > > I asked about excerpt because I expect the proper log to have an order > of magnitude bigger size. Ok. The dump is around 100MB, I hope I extracted as much as needed: http://people.freebsd.org/~andreast/dumped_installkernel-7.log >>>>> I used buildworld on the NFS-mounted obj/ as the test for the changes. >>>> >>>> Here the obj is local, only the src and the destination is on the >>>> nfs/netboot server. >>> >>> I just finished build on NFS obj/ and did several rounds of installs >>> for world and kernel into nfs-mounted destdir. It seems I cannot reproduce >>> this locally. >> >> Ok. I try with an nfs obj too. So, I was not able to reproduce the failure with an nfs mounted obj dir. But I was able to reproduce the failure with three different machines which all have the obj local and the destination mounted via nfs. Are you able to try with a local obj too? Thanks, Andreas
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