On 01.07.12 23:43, Konstantin Belousov wrote:
On Sun, Jul 01, 2012 at 08:33:09PM +0200, Andreas Tobler wrote:
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?
Below are two patches. Please follow my instructions literally to get
most of your bug report.
First, please apply the usr.bin/xinstall patch only, and retry installkernel
(no need to use ktrace). It should show the proper error, short write, with
zero-sized result, instead of garbage ENOENT from errno.
Done. No expected output. Iow, no message containing this:
short write to %s: %jd bytes written, %jd bytes asked to write
Next, please apply the sys/fs/nfsclient patch, which should fix the core
cause.
Still the same failure:
===> zfs (install)
install -o root -g wheel -m 555 zfs.ko /netboot/powerpc64/boot/kernel
install -o root -g wheel -m 555 zfs.ko.symbols
/netboot/powerpc64/boot/kernel
install: /netboot/powerpc64/boot/kernel/zfs.ko.symbols: No such file or
directory
*** [_kmodinstall] Error code 71
Does it matter what filesystem the local dir is on?
Here the output from mount:
/dev/ada0p4 on /export (ufs, NFS exported, local, journaled soft-updates)
[root@tcx58] /usr/obj/> df -k .
Filesystem 1024-blocks Used Avail Capacity Mounted on
/dev/ada0p4 132098652 30672276 90858484 25% /export
I'm off at work for the rest of the day. I'll try if I can reproduce the
issue there as well.
Thanks a lot!
Andreas
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