[linux-cifs-client] CIFS mounted share: scandir returns incomplete list

[Hervé Fache]

In my case there are 677 files in the DOS file name format in that
directory...

Could you let me know how to log packets for this machine ('abrolhos') and
protocol? I could leave the backup server logging all the time until the
problem happens again and send you the relevant log when it does then...

Also, isn't there a way maybe to send the number of entries as read on the
CIFS server so we can at least detect the inconsistency? Or does it break
the protocol?

Hervé

2008/8/31 Sam Liddicott <sam at liddicott.com>

> I've noticed similar behavior on samba4 with vfs-cifs. By modifying the
> request to reduce the number of entries that find-first or find-next require
> I can make the problem "go away".
>
> I think the problem is related to the encoding or decoding of multi-part
> nttrans requests.
>
> I believe that Stefan Metzemacher is aware of alignment issues in the
> packing of large nttrans responses; your experience suggest a problem also
> in unpacking large response.
>
> I've been to busy to follow this up, having to make do with the workaround
> I mention, but hope to spend time on it the latter part of this week.
>
> However if you bring it up on irc when I'm online (samjam) and metze (I
> can't really speak for him) we may get somewhere. If you have some packet
> dumps that can be put through wireshark it may help.
>
> The problem occurs for me when there are more than a thousand longish
> filenames in a directory.
>
> sam
>
> ------------------------------
> From: Hervé Fache <Herve at lucidia.net>
> Sent: 31 August 2008 13:51
> To: linux-cifs-client at lists.samba.org
> Subject: [linux-cifs-client] CIFS mounted share: scandir returns
> incomplete list
>
>
> Hello there,
>
> I have a backup system on my Linux server which mounts shares to back them
> up. To backup Windows shares, I use the CIFS mount type.
>
> Every so often (hadn't happened in a few weeks until today), scandir
> returns an incomplete list of contents, without any error code being
> returned. Also, errno is not set. The problem happens on a machine connected
> via WiFi (Intel 2200BG).
>
> If you have any clues or if I can turn on some debug to track the issue,
> please let me know.
>
> Also, if you have ideas on how I could work around this issue, all ideas
> are welcome!
> Hervé
>
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