Also found memory leaks ... unreferenced object 0xffff88801c8ca600 (size 192): comm "python3", pid 14002, jiffies 4300343883 (age 4393.481s) hex dump (first 32 bytes): f0 a2 8b 17 80 88 ff ff f0 a2 8b 17 80 88 ff ff ................ 01 00 00 00 00 00 00 00 00 ca 9a 3b 00 00 00 00 ...........;.... backtrace: [<ffffffff8144e3f5>] __kmem_cache_alloc_node+0x295/0x2d0 [<ffffffff813ab1aa>] kmalloc_trace+0x2a/0xc0 [<ffffffffc016178d>] parse_server_interfaces+0x4ed/0xcc0 [cifs] [<ffffffffc016ae13>] SMB3_request_interfaces+0x163/0x2b0 [cifs] [<ffffffffc016b0dd>] smb3_qfs_tcon+0x16d/0x2c0 [cifs] [<ffffffffc01102c1>] cifs_mount_get_tcon+0x3b1/0x550 [cifs] [<ffffffffc01a2471>] dfs_mount_share+0xcc1/0xfa0 [cifs] [<ffffffffc011089a>] cifs_mount+0xda/0x4c0 [cifs] [<ffffffffc01006d5>] cifs_smb3_do_mount+0x1e5/0xcc0 [cifs] [<ffffffffc01954cd>] smb3_get_tree+0x16d/0x380 [cifs] [<ffffffff8147c1ad>] vfs_get_tree+0x4d/0x190 [<ffffffff814bdbc3>] fc_mount+0x13/0x60 [<ffffffffc019aae4>] cifs_do_automount.isra.0+0x3c4/0x4d0 [cifs] [<ffffffffc019ae3d>] cifs_d_automount+0x4d/0x1b0 [cifs] [<ffffffff8148b01c>] __traverse_mounts+0xcc/0x300 [<ffffffff8149350b>] step_into+0x54b/0xd30 and leaked server connections Display Internal CIFS Data Structures for Debugging --------------------------------------------------- CIFS Version 2.46 Features: DFS,FSCACHE,STATS2,DEBUG2,ALLOW_INSECURE_LEGACY,CIFS_POSIX,UPCALL(SPNEGO),XATTR,ACL,WITNESS CIFSMaxBufSize: 16384 Active VFS Requests: 0 Servers: 1) ConnectionId: 0x70e Hostname: w22-root2.gandalf.test ClientGUID: 44DAE383-3E91-3042-85FE-87D6F17298B7 Number of credits: 1,1,1 Dialect 0x210 Server capabilities: 0x300007 TCP status: 4 Instance: 77 Local Users To Server: 1 SecMode: 0x1 Req On Wire: 0 Net namespace: 4026531840 In Send: 0 In MaxReq Wait: 0 DFS leaf full path: \\W22-ROOT1.GANDALF.TEST\dfstest3\link10 Sessions: [NONE] 2) ConnectionId: 0x706 Hostname: w22-root2.gandalf.test ClientGUID: C8CF45E4-F70D-DF40-8821-0234A2E20DD4 Number of credits: 1,1,1 Dialect 0x210 Server capabilities: 0x300007 TCP status: 4 Instance: 81 Local Users To Server: 1 SecMode: 0x1 Req On Wire: 0 Net namespace: 4026531840 In Send: 0 In MaxReq Wait: 0 DFS leaf full path: \\W22-ROOT1.GANDALF.TEST\dfstest3\link6 Sessions: [NONE] 3) ConnectionId: 0x6ae Hostname: w22-root1.gandalf.test ClientGUID: AB059CDD-12FF-B94D-B30C-9E1928ACBA95 Number of credits: 1,1,1 Dialect 0x210 Server capabilities: 0x300007 TCP status: 4 Instance: 96 Local Users To Server: 1 SecMode: 0x1 Req On Wire: 0 Net namespace: 4026531840 In Send: 0 In MaxReq Wait: 0 DFS leaf full path: \\W22-ROOT1.GANDALF.TEST\dfstest3\link9 Sessions: [NONE] ... while running reconnect tests.