On Fri, Aug 21, 2009 at 11:25:57PM +0000, Hongwei Sun wrote: > Jeremy, > > > > After much of testing and debugging, it seems that we are getting the > cause > why Windows takes the file offline and the timestamp update only goes to local > store. When Windows close one particular handle through which the file had > been modified, it queries the timestamps using FIND_FIRST2 on the file after > receiving the close response. Those timestamps are then saved in CSC cache. > We can see that the LastWriteTime value returned from the create response > does > not match the value returned from FIND_FRIST2 query. The mismatch of > LastWriteTime causes Windows to declare the version conflict between server > copy and local cache and thus takes it offline. > > > > Here are the details shown in the traces you sent us.. > > > > Office2003-opnclose-samba-bad.cap: > > > > Opening file, the current time stamp is written to the excel file > > > > Frame 175 10.20.0.111 10.20.0.66 SMB Trans2 Response, > FIND_FIRST2, Files: excel test.xls Last Write: Jul 8, 2009 > 15:10:06.000000000 > > Frame 185 10.20.0.111 10.20.0.66 SMB NT Create AndX Response, > FID: 0x13ff Last Write: Jul 8, 2009 15:10:06.000000000 > > Frame 214 10.20.0.66 10.20.0.111 SMB Trans2 Request, > SET_FILE_INFO, FID: 0x13ff > > > > So far so good.. > > > > Closing file, the original time stamp is supposed to be restored to the > excel file > > > > Frame 574 10.20.0.111 10.20.0.66 SMB Trans2 Response, > FIND_FIRST2, Files: excel test.xls Last Write: Jul 8, 2009 > 19:36:12.294000000 > > Frame 587 10.20.0.111 10.20.0.66 SMB NT Create AndX Response, > FID: 0x103e Last Write: Jul 8, 2009 19:36:12.000000000 > > > > Mismatch of time stamp is detected and remote file is closed and it is > going offline. SET_FILEINFO will not sent to the server any update will > only goes to local copy. > > > > Frame 588 10.20.0.66 10.20.0.111 SMB Close Request, FID: > 0x103e > > > > From all the failed cases I got, I can see that only the millisecond part > is different. > > > > You may look at the difference between logics of those two commands > regarding LastWriteTime. Please let me know what you think and, if necessary, > we can continue working together to debug the problem.
Fantastic analysis ! Thanks. I'll get onto this immediately. Thanks, Jeremy. _______________________________________________ cifs-protocol mailing list [email protected] https://lists.samba.org/mailman/listinfo/cifs-protocol
