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

[Hervé Fache]

I honestly have no idea: I am using CIFS as shipped in Ubuntu 8.04 on the
server and the client is a Windows XP SP3 machine.

HTH
Hervé

2008/9/2 Sam Liddicott <sam at liddicott.com>

>  My work suggests no problem with the trans2 encoding or decoding but that
> if the client is unable to accept all the entries from the server, and yet
> also set the close-on-end_of_search flag, the last few entries will be
> missing.
>
> This occurred for me because the cifs proxy negotiated larger response
> sizes with the server than the client did with the proxy.
>
> I don't know if this can be related to your problem or not; is close-on-eos
> set for the request?
>
> Sam
>
> * Hervé Fache wrote, On 01/09/08 08:43:
>
> 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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