[LU-13190] I/O can fail with -EBADF if fresh client has no connection to OST Created: 02/Feb/20  Updated: 20/Feb/20  Resolved: 20/Feb/20

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.14.0

Type: Bug Priority: Minor
Reporter: Alex Zhuravlev Assignee: Alex Zhuravlev
Resolution: Fixed Votes: 0
Labels: None

Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

otherwise it's possible to get -EBADF:

  • client sends open|create intent before a connection to OST is established
  • MDS replies back without UPDATE bit in LDLM lock, but with the layout
    (MDS doesn't send OBD_MD_FLMODEASIZE and back
  • client's cl_default_mds_easize is still 0
  • client sends getattr intent with 0-size buffer for EA
  • MDS replies with no layout and LAYOUT bit
  • client sets local layout to EMPTY
  • all subsequent I/O fails with -EBADF



            

        		
    

    


    


    

    

        
             Comments 
        
         
    

    


    

                

            Comment by  
                                                        Gerrit Updater
                                        
            [
                02/Feb/20

                            ]
            

        

        

            
Alex Zhuravlev (bzzz@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/37400

Subject: LU-13190 mds: send mbo_max_mdsize in open intent reply

Project: fs/lustre-release

Branch: master

Current Patch Set: 1

Commit: 5592eb9b6b67bd602b0f1cc0c5b08b79ae45e891

        

                

            Comment by  
                                                        Gerrit Updater
                                        
            [
                20/Feb/20

                            ]
            

        

        

            
Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/37400/

Subject: LU-13190 mds: send mbo_max_mdsize in open intent reply

Project: fs/lustre-release

Branch: master

Current Patch Set: 

Commit: 0a80afc58b4c64f3e7478ccfe1949ba30a28dfa3

        

                

            Comment by  
                                                        Peter Jones
                                        
            [
                20/Feb/20

                            ]
            

        

        

            
Landed for 2.14

        

            

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