Re: svn commit: r237367 - head/sys/fs/nfsclient

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?

I placed the whole kdump here:

http://people.freebsd.org/~andreast/dumped_installkernel.log

It is not clear to me where the failure starts :)

>
>>
>>> 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.
Thanks.
Andreas

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