Re: Fwd: SMB2 not respecting mtime values

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On Thu, Jan 24, 2019 at 3:14 PM Ralph Böhme <slow@xxxxxxxxx> wrote:
>
> On Thu, Jan 24, 2019 at 12:24:53PM -0500, Jacob Shivers wrote:
> >On Thu, Jan 24, 2019 at 12:11 PM Ralph Böhme via samba-technical
> ><samba-technical@xxxxxxxxxxxxxxx> wrote:
> >>
> >> On Thu, Jan 24, 2019 at 09:03:41AM -0800, Jeremy Allison via samba-technical wrote:
> >> >Maybe. Changing meta-data semantics on write is fraught with danger,
> >> >and we don't even do that for SMB1 unix extensions. So let's not
> >> >add contraints we don't understand yet please.
> >> >
> >> >My money is on a client bug, as always :-).
> >>
> >> fwiw, just in case you were not aware of this one:
> >>
> >> https://bugzilla.samba.org/show_bug.cgi?id=13594
> >>
> >> We also seem to have a bug that a set-eof on a handle with
> >> set-eof-size=existing-size doesn't flush a pending write time update. At least
> >> newer Windows server seem to do that.
> >
> >This seems like what the issue is.
> >The SMB server is uptime mtime after the server actually flushes to
> >stable storage.
>
> not quite, but still a client bug. :) The client uses a second handle to set the
> mtime, it should use the first handle. Or open the second handle after closing
> the first one where it did the write.

Ahh.

Thank you very much for your help and for narrowing down the problem
to a client side bug :)



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