Reproducible Data Corruption Issue

Volker Lendecke Volker.Lendecke at SerNet.DE
Fri Oct 10 13:33:36 MDT 2014

On Fri, Oct 10, 2014 at 06:11:24PM +0000, Green, Paul wrote:
> Volker Lendecke [mailto:Volker.Lendecke at] wrote:
> > 
> > I'd call this some unexpected behaviour (bug) of the Linux cifs client
> > with Samba. My understanding of the document is that the target file is
> > only being accessed via Samba, both ftp clients come in via a Linux cifs
> > mount. If that is a misunderstanding on my side, please correct me.
> You are correct.
> > I believe this *should* work and not cause corruption. It would be
> > interesting to me to see the full logs and network traces, if possible
> > together with an strace -ttT of both ftp server processes.
> I have updated Samba Bugzilla issue #10865 with the
> requested information. Let me know if any further
> information would be helpful.

The tcpdump logs are the stdout of tcpdump. Unfortunately, that is
missing a lot of information. If possible, can you repeat the test and
do network traces according to

to get the raw traces? Also, the ftp server and the Samba server seem
to have different clocks. The strace is a bit past 12pm, the Samba
server is right before 5pm. Not super-important, but if possible, can
you coordinate both clocks?



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