Hi, I got the following kernel BUG while moving files onto an nfs mount, while running Linus' linux-2.6 git tree (2.6.38-rc2) under VirtualBox. The mv command is now stuck in the D+ state. Attempting to ls the mount results in ls being stuck in the D+ state. The nfs server is an Ubuntu 10.04 box running Ubuntu kernel. (2.6.32-28-generic-pae #55-Ubuntu SMP Mon Jan 10 22:34:08 UTC 2011) I would be happy to provide any more information that is required. kernel BUG at fs/nfs/nfs3xdr.c:1338! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/devices/virtual/bdi/0:21/uevent Modules linked in: nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc psmouse i2c_piix4 serio_raw sr_mod pcnet32 mii 476034] Pid: 3214, comm: mv Not tainted 2.6.38-rc2-custom3dlcl #3 /VirtualBox EIP: 0060:[<d8a0d9e8>] EFLAGS: 00010282 CPU: 0 EIP is at nfs3_xdr_enc_setacl3args+0xb8/0xc0 [nfs] EAX: ffffffea EBX: d623bd90 ECX: 00000000 EDX: d623bbd8 ESI: d623bcac EDI: 00000084 EBP: d623bc88 ESP: d623bc70 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process mv (pid: 3214, ti=d623a000 task=d7770ca0 task.ti=d623a000) Stack: d6d651a0 00000001 00000000 d623bcac d5ea8000 d8a0d930 d623bcd4 d88d8f16 d1828820 d623bcb0 d88d9be7 d1828824 d182884c d7553880 00000000 d1828888 d5ea8004 d18289d4 d5ea8004 d623bd10 d5d8d000 d5d8d35c d7553880 d5ea8000 Call Trace: [<d8a0d930>] ? nfs3_xdr_enc_setacl3args+0x0/0xc0 [nfs] [<d88d8f16>] rpcauth_wrap_req+0x76/0xb0 [sunrpc] [<d88d9be7>] ? unx_marshal+0x47/0xc0 [sunrpc] [<d88d0f7f>] call_transmit+0x14f/0x250 [sunrpc] [<d88d8227>] __rpc_execute+0x67/0x200 [sunrpc] [<c0166d6e>] ? wake_up_bit+0x5e/0x70 [<d88d7b92>] ? rpc_make_runnable+0x72/0xa0 [sunrpc] [<d88d83f8>] rpc_execute+0x38/0x40 [sunrpc] [<d88d1d04>] rpc_run_task+0xa4/0xe0 [sunrpc] [<d88d1e3e>] rpc_call_sync+0x3e/0x60 [sunrpc] [<d8a0f4c0>] nfs3_proc_setacls+0x150/0x2e0 [nfs] [<c016ae01>] ? __run_hrtimer+0xa1/0x1c0 [<c025c317>] ? posix_acl_alloc+0x17/0x30 [<d8a0fdaf>] nfs3_proc_setacl+0x5f/0x100 [nfs] [<c025c48c>] ? posix_acl_from_xattr+0x6c/0x100 [<d8a0ff02>] nfs3_setxattr+0x52/0xa0 [nfs] [<d8a0feb0>] ? nfs3_setxattr+0x0/0xa0 [nfs] [<c0237ef1>] __vfs_setxattr_noperm+0x41/0x120 [<c030a67c>] ? cap_inode_setxattr+0x2c/0x60 [<c0238061>] vfs_setxattr+0x91/0xa0 [<c0238128>] setxattr+0xb8/0x110 [<c01f8695>] ? handle_pte_fault+0x85/0x920 [<c01307cc>] ? kmap_atomic_prot+0x4c/0x100 [<c01f8fdc>] ? handle_mm_fault+0xac/0x140 [<c05bc772>] ? do_page_fault+0x1b2/0x450 [<c02d0500>] ? ext4_listxattr+0x0/0x240 [<c023783a>] ? vfs_listxattr+0x3a/0x70 [<c0238218>] sys_fsetxattr+0x98/0xb0 [<c010301f>] sysenter_do_call+0x12/0x28 Code: 59 f2 ff 85 c0 78 20 83 c4 0c 5b 5e 5f 5d c3 8d 74 26 00 8b 43 10 31 c9 8b 53 18 89 04 24 89 f0 e8 0e 38 ed ff eb 80 0f 0b eb fe <0f> 0b eb fe 8d 74 26 00 55 89 e5 83 ec 08 89 1c 24 89 74 24 04 EIP: [<d8a0d9e8>] nfs3_xdr_enc_setacl3args+0xb8/0xc0 [nfs] SS:ESP 0068:d623bc70 ---[ end trace 69c4fc2ce1ae740d ]--- -- Douglas Leeder, Senior Software Engineer Sophos Limited, The Pentagon, Abingdon Science Park, Abingdon, OX14 3YP, United Kingdom. Company Reg No 2096520. VAT Reg No GB 991 2418 08. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html