[Samba] rsync copy operation fails on a CIFS mount

[SZIGETVÁRI János]

Dear Members,

Do you happen to have any recommendations on where I should begin?

Best Regards,
János

SZIGETVÁRI János <jszigetvari at gmail.com> ezt írta (időpont: 2021. júl. 30.,
P, 12:52):

> Dear Members,
>
> I work for a company that (among others) sells Ubuntu-based log storage
> appliances. I ran into a problem, where I'm trying to copy a large amount
> of data over to a CIFS mount from a Ubuntu 18.04 based appliance to a
> Windows 2012 R2 Storage Server, and rsync fails after 1-2-3 hours into the
> copy operation with something like:
> rsync: failed to set times on "FILENAME.U5EgGX": No such device (19)"
>
> and I see a number of kernel logs just prior to that, that look like this:
>
> kernel: [3819786.441711] CIFS VFS: No task to wake, unknown frame
> received! NumMids 1
> kernel: [3819786.441717] 00000000: 6c000000 424d53fe 00000040 00000000
>  ...l.SMB at .......
> kernel: [3819786.441718] 00000010: 00000012 00000001 00000000 ffffffff
>  ................
> kernel: [3819786.441720] 00000020: ffffffff 00000000 00000000 00000000
>  ................
> kernel: [3819786.441721] 00000030: 00000000 00000000 00000000 00000000
>  ................
> kernel: [3819786.441722] 00000040: 00000000
>
> Now who should I turn to get to the end of this problem?
> Should I file a bug for the Samba project? Or is it the kernel code that
> may be affected? If that is the case, who should I turn to?
>
> I also tried to google around for a while, and I found the same exact
> package hexdump on the linux-cifs mailing list from 2012:
> https://www.spinics.net/lists/linux-cifs/msg06634.html
>
> In that thread the person reporting the problem failed to reproduce the
> problem a few weeks after reporting it.
> There it was recommended to try and mount the share with SMB v1, but that
> is out of the question nowdays.
>
> We tried forcing the mount to happen with vers=3 and 3.02, but it made no
> difference.
>
> Best Regards,
> János Szigetvári
> --
> Janos SZIGETVARI
> RHCE, License no. 150-053-692
> <https://www.redhat.com/rhtapps/verify/?certId=150-053-692>
>
> LinkedIn: linkedin.com/in/janosszigetvari
>
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