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SubjectRe: NFS client broken in Linus' tip
At Mon, 3 Feb 2014 09:21:16 -0500,
Trond Myklebust wrote:
>
>
> On Feb 3, 2014, at 4:43, Takashi Iwai <tiwai@suse.de> wrote:
>
> > At Sun, 02 Feb 2014 17:04:38 -0500,
> > Trond Myklebust wrote:
> >>
> >> On Sun, 2014-02-02 at 12:27 +0000, Russell King - ARM Linux wrote:
> >>> On Sat, Feb 01, 2014 at 01:03:28AM +0000, Russell King - ARM Linux wrote:
> >>>> On Fri, Jan 31, 2014 at 03:59:30PM -0500, Trond Myklebust wrote:
> >>>>> On Thu, 2014-01-30 at 15:38 +0000, Russell King - ARM Linux wrote:
> >>>>>> On Thu, Jan 30, 2014 at 06:32:08AM -0800, Christoph Hellwig wrote:
> >>>>>>> On Thu, Jan 30, 2014 at 02:27:52PM +0000, Russell King - ARM Linux wrote:
> >>>>>>>> Yes and no. I still end up with an empty /etc/mtab, but the file now
> >>>>>>>> exists. However, I can create and echo data into /etc/mtab, but it seems
> >>>>>>>> that can't happen at boot time.
> >>>>>>>
> >>>>>>> Odd. Can you disable CONFIG_NFSD_V3_ACL for now to isolate the issue?
> >>>>>>
> >>>>>> Unfortunately, that results in some problem at boot time, which
> >>>>>> ultimately ends up with the other three CPUs being stopped, and
> >>>>>> hence the original reason scrolls off the screen before it can be
> >>>>>> read... even at 1920p.
> >>>>>>
> >>>>> Hi Russell,
> >>>>>
> >>>>> The following patch fixes the issue for me.
> >>>>
> >>>> It doesn't entirely fix the issue for me, instead we've got even weirder
> >>>> behaviour:
> >>>>
> >>>> root@cubox-i4:~# ls -al test
> >>>> ls: cannot access test: No such file or directory
> >>>> root@cubox-i4:~# touch test
> >>>> root@cubox-i4:~# ls -al test
> >>>> -rw-r--r-- 1 root root 0 Feb 1 01:01 test
> >>>> root@cubox-i4:~# echo foo > test
> >>>> root@cubox-i4:~# ls -al test
> >>>> -rw-r--r-- 1 root root 4 Feb 1 01:01 test
> >>>> root@cubox-i4:~# cat test
> >>>> foo
> >>>> root@cubox-i4:~# rm test
> >>>> root@cubox-i4:~# echo foo > test
> >>>> -bash: test: Operation not supported
> >>>> root@cubox-i4:~# ls -al test
> >>>> -rw-r--r-- 1 root root 0 Feb 1 01:01 test
> >>>
> >>> FYI, I just tested Linus' tip, and NFS is still broken.
> >>>
> >> Hi Russell,
> >>
> >> The following patch should fix the above problem. It needs to be applied
> >> on top of the one I sent you previously.
> >
> > I've hit the same problem, and your two patches seem fixing it.
> > I tested them on top of 3.14-rc1. Feel free to take my tested-by tag
> >
> > Tested-by: Takashi Iwai <tiwai@suse.de>
> >
> >
> >> In addition, you will want to
> >> apply Noah Massey's patch from
> >> http://lkml.kernel.org/r/1391135472-9639-1-git-send-email-Noah.Massey@gmail.com
> >
> > Do I still need to test this one, too?
> >
>
> Hi Takashi,
>
> Noah’s patch is not a replacement for the above 2 patches; it fixes a different problem. All three patches are therefore required for a complete solution.

OK, I'll test with Noah's patch.


thanks,

Takashi
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