search for: qfid

What is the function of the create QFID request. Looking at the request it does not seem to have any name or other discernible information. I've searched the web for information on how to decode the request. The monitor breaks down most of the block. But the file name seems to be null. The response to the request also does not ha...

..... .... .... .... 1... .... = Read Attributes: READ ATTRIBUTES access Create Options: 0x00200000 .... .... ..1. .... .... .... .... .... = Open Reparse Point: Open a Reparse Point File Attributes: 0x00000000 Share Access: 0x00000007 SHARE_DELETE SHARE_WRITE SHARE_READ ExtraInfo DHnQ MxAc QFid This fails with object-not-found 222.667599 10.6.0.101 10.48.66.95 SMB2 131 Create Response, Error: STATUS_OBJECT_NAME_NOT_FOUND SMB2 create request comes to create the file with batch-oplock/request durable handle 222.681571 10.48.66.95 10.6.0.101 SMB2 386 Create Request File: ~test.pst....

Why is a windows 10 pro system issuing a sequence of smb2 commands every 30 seconds or so? SMB2:C CREATE(0x5), Sh(None), QFid, File=NULL@#15679 followed by SMB2:C QUERY INFORMATION(0x10),Class=Query FS Full Size, FID=0xB7CD3148(NULL@#15679) Folowed by SMB2:C CLOSE(0x6),FID=0xB7CD3148(NULL@#15679 Not sure why this sequence starts or stops. But it can run for hours at a time. This is happening with samba 4.3.11. It doe...

...that I wrote is, in the > tcpdump I see that when the original problem happened, in SMB2/create > response, samba returned allocation-size=1MB whereas in my test, this is > not returned. I am not sure how this can happen as SMB2 create request in > tcpdump has > ExtraInfo DHnQ MxAc QFid > (i.e. no ALSI specified in it). Any thoughts? > > Thanks for your inputs! No, sorry, not really. If I had a reproducer I'd probably very quickly be able to see what's going on. The things I'd look at are the debug level 10 log together with the strace. With best regards,...

...the smbtorture/smb2 test that I wrote is, in the tcpdump I see that when the original problem happened, in SMB2/create response, samba returned allocation-size=1MB whereas in my test, this is not returned. I am not sure how this can happen as SMB2 create request in tcpdump has ExtraInfo DHnQ MxAc QFid (i.e. no ALSI specified in it). Any thoughts? Thanks for your inputs! --Shyam -----Original Message----- From: Volker Lendecke [mailto:Volker.Lendecke at SerNet.DE] Sent: Thursday, July 09, 2015 12:51 PM To: Shyam Kaushik Cc: samba at lists.samba.org Subject: Re: [Samba] Constant error messages...

On Thu, Jul 09, 2015 at 10:39:58AM +0530, Shyam Kaushik wrote: > Hi All, > > Need your help/inputs on what could be the probable cause/how to debug > this further. > > We are using samba-4.0.25 & expose a share that has oplocks enabled & no > kernel-oplocks set. We constantly see these messages in samba logs > > [2015/06/25 03:05:30.593150, 0, pid=1581,

...00 [Frame handle opened: 147] Blob Offset: 0x00000098 Blob Length: 164 ExtraInfo SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST SMB2_CREATE_QUERY_ON_DISK_ID SMB2_CREATE_REQUEST_LEASE Chain Element: SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc" Chain Element: SMB2_CREATE_QUERY_ON_DISK_ID "QFid" Chain Element: SMB2_CREATE_REQUEST_LEASE "RqLs" All seems fine: Frame 151: 358 bytes on wire (2864 bits), 358 bytes captured (2864 bits) on interface eth2, id 0 Ethernet II, Src: Cisco_d5:d5:fc (00:2a:6a:d5:d5:fc), Dst: VMware_93:fb:2d (00:50:56:93:fb:2d) Internet Protocol Version...

...ng someone here has had experience troubleshooting similar issues and can provide some tips/pointers on what to look for. I am primarily trying to figure out what could prompt the client to open a folder it knows is a folder, as a file and ask for the stream info. I have looked through the file ID, QFid, etc for any duplication and could not find any. So, why would the client do this? And it does not do this for 99% of the folders in the tree.. Just for a few... Thanks! ----------- Frame showing the path being opened as a directory... Frame 65257: 706 bytes on wire (5648 bits), 706 bytes captu...

...that I wrote is, in the > tcpdump I see that when the original problem happened, in SMB2/create > response, samba returned allocation-size=1MB whereas in my test, this is > not returned. I am not sure how this can happen as SMB2 create request in > tcpdump has > ExtraInfo DHnQ MxAc QFid > (i.e. no ALSI specified in it). Any thoughts? > > Thanks for your inputs! No, sorry, not really. If I had a reproducer I'd probably very quickly be able to see what's going on. The things I'd look at are the debug level 10 log together with the strace. With best regards, V...