On Thu, 2016-06-09 at 10:27 -0700, Andrei Vagin wrote:
> On Wed, Jun 8, 2016 at 6:23 PM, Ian Kent <ra...@themaw.net> wrote:
> > On Mon, 2016-05-30 at 13:52 +0800, Ian Kent wrote:
> > > On Tue, 2016-05-24 at 09:34 +0800, Ian Kent wrote:
> > > > On Mon, 2016-05-23 at 14:50 -0700, Andrei Vagin wrote:
> > > > > Hi Ian,
> > > > >
> > > > > When are you going to apply this patch? We can't test linux-next
> > > > > without
> > > > > it.
> > > >
> > > > I though I sent this with the last series but I can't see that I have.
> > > >
> > > > I have the rest of that series to send over to Andrew which I was
> > > > planning
> > > > to
> > > > do
> > > > after the current merge window closes (which is about now I guess).
> > > >
> > > > I'll include it in that series.
> > > > Sorry for the hold up, ;)
> > >
> > > Some bad news I'm afraid.
> > >
> > > I was getting ready to send these over to Andrew and found that opendir(3)
> > > is
> > > failing on a number of tests (51 of 230, 9 fails are expected) with 4.6.0.
> > >
> > > It's not the patches, yours or mine and it doesn't happen with 4.4.x
> > > kernels.
> > >
> > > Looks like I'm going to have to bisect to work out what's going on and
> > > that
> > > will
> > > take a while.
> >
> > The regression has been fixed now.
> >
> > Al Viro sent a patch for it to Linus yesterday, it's commit e6ec03a25f1 in
> > the
> > Linux tree.
>
> It's good!
>
> >
> > I can send my patches to Andrew (after re-testing) but any autofs related
> > testing of linux.next will need the above commit.
> >
> > Andrew, surely this isn't the first time this type of problem has happened,
> > how
> > is it usually handled, what do I need to do to make this go smoothly?
>
> In linux-next we catch two sorts of bugs.
>
> 1. If bugs is triggered very often, we report it, when it isn't in
> Linus' tree. And such bugs are fixed very fast.
> 2. If bugs is triggered rarely. In this case we may detect this bug
> too late, when it's in Linus' tree. In this case we may need to
> workaraound it.
>
> Here the problem belongs to the second type. It is triggered only when
> one or more tests failed and we try to kill all test processes.
> Actually it doesn't affect regular runs of tests, but it's annoying
> when we are investigating something.
>
> Ian, I don't think that you need to do anything special. Thank you for
> handling this patch!
LOL, it's good that it was my standard (relatively simple) testing that exposed
it.
I'll wait a little longer in case Andrew has anything to add then send the patch
series to him.
>
> Thanks,
> Andrew
>
> >
> > >
> > > >
> > > > Ian
> > > >
> > > > >
> > > > > Thanks,
> > > > > Andrew
> > > > >
> > > > >
> > > > > On Fri, Apr 1, 2016 at 12:37 AM, Ian Kent <ra...@themaw.net> wrote:
> > > > > > On Thu, 2016-03-31 at 22:12 -0700, Andrey Vagin wrote:
> > > > > > > From: Andrey Vagin <ava...@openvz.org>
> > > > > > >
> > > > > > > __vfs_write() returns a negative value in a error case.
> > > > > >
> > > > > > Ha, right, I'll send this along to Andrew with my next series which
> > > > > > should be soon.
> > > > > >
> > > > > > >
> > > > > > > Cc: Ian Kent <ra...@themaw.net>
> > > > > > > Signed-off-by: Andrey Vagin <ava...@openvz.org>
> > > > > > > ---
> > > > > > > fs/autofs4/waitq.c | 7 ++++---
> > > > > > > 1 file changed, 4 insertions(+), 3 deletions(-)
> > > > > > >
> > > > > > > diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
> > > > > > > index 0146d91..631f155 100644
> > > > > > > --- a/fs/autofs4/waitq.c
> > > > > > > +++ b/fs/autofs4/waitq.c
> > > > > > > @@ -66,11 +66,12 @@ static int autofs4_write(struct autofs_sb_info
> > > > > > > *sbi,
> > > > > > > set_fs(KERNEL_DS);
> > > > > > >
> > > > > > > mutex_lock(&sbi->pipe_mutex);
> > > > > > > - wr = __vfs_write(file, data, bytes, &file->f_pos);
> > > > > > > - while (bytes && wr) {
> > > > > > > + while (bytes) {
> > > > > > > + wr = __vfs_write(file, data, bytes, &file->f_pos);
> > > > > > > + if (wr <= 0)
> > > > > > > + break;
> > > > > > > data += wr;
> > > > > > > bytes -= wr;
> > > > > > > - wr = __vfs_write(file, data, bytes, &file->f_pos);
> > > > > > > }
> > > > > > > mutex_unlock(&sbi->pipe_mutex);
> > > --
> > > To unsubscribe from this list: send the line "unsubscribe autofs" in
