On Tue, Jul 31, 2012 at 12:28 AM, Myklebust, Trond <Trond.Myklebust@xxxxxxxxxx> wrote: > I'm therefore Ccing Bryan in case he knows of anything. I guess that the fixes from David Howells (a427b9e) are related to my oops I mentioned; particularly the point 4 in his commit. BUG: unable to handle kernel NULL pointer dereference at 0000000000000070 IP: [<ffffffff811a4a18>] wait_for_key_construction+0x28/0x70 PGD 2bf8de000 Oops: 0000 [#1] PREEMPT SMP CPU 23 Pid: 25735, comm: kworker/23:2 Tainted: G W 3.4.4 #1 Dell Inc. C6100 /0D61XP RIP: 0010:[<ffffffff811a4a18>] [<ffffffff811a4a18>] wait_for_key_construction+0x28/0x70 RSP: 0018:ffff880b99a15a80 EFLAGS: 00010246 RAX: ffffffff811a4a70 RBX: 0000000000000000 RCX: 0000000000000002 RDX: ffffffff811a4a60 RSI: 0000000000000000 RDI: 0000000000000070 RBP: ffff8803c915e420 R08: ffff88061c877bc1 R09: 0000000000000000 R10: 0000000050159fb7 R11: 0000000000000000 R12: ffffffff816b5e49 R13: ffff880ba944ca48 R14: 0000000000000013 R15: ffff8803c915e423 FS: 0000000000000000(0000) GS:ffff880c3fd60000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000070 CR3: 00000000014aa000 CR4: 00000000000007f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kworker/23:2 (pid: 25735, threadinfo ffff880b154a0ba0, task ffff880b154a0750) Stack: 0000000000000000 ffffffff811a512f 0000000000000000 ffffffff810df09d 0000000000000000 000000000000000e ffff880841b54cc0 ffffffff816c88f8 ffff8803c915e420 ffffffff81184fbb 0000000000000013 ffffffff81935c40 Call Trace: [<ffffffff811a512f>] ? request_key+0x5f/0xa0 [<ffffffff810df09d>] ? __kmalloc+0x2d/0x120 [<ffffffff81184fbb>] ? nfs_idmap_request_key+0x1ab/0x1c0 [<ffffffff81185027>] ? nfs_idmap_get_key+0x57/0xd0 [<ffffffff811852ae>] ? nfs_map_string_to_numeric+0x3e/0xc0 [<ffffffff8118535f>] ? nfs_idmap_lookup_id+0x2f/0x80 [<ffffffff81185479>] ? nfs_map_name_to_uid+0x39/0x90 [<ffffffff8117dedb>] ? decode_getfattr_attrs+0x94b/0xa10 [<ffffffff8117f776>] ? T.1607+0x96/0xe0 [<ffffffff8117f852>] ? nfs4_xdr_dec_delegreturn+0x72/0x80 [<ffffffff8117f7e0>] ? decode_getfattr+0x20/0x20 [<ffffffff8144db39>] ? rpcauth_unwrap_resp+0x79/0x80 [<ffffffff8117f7e0>] ? decode_getfattr+0x20/0x20 [<ffffffff81445a33>] ? call_decode+0x2a3/0x400 [<ffffffff8144cf26>] ? __rpc_execute+0x46/0x1b0 [<ffffffff81050338>] ? process_one_work+0x108/0x3a0 [<ffffffff8144d0c0>] ? rpc_execute+0x30/0x30 [<ffffffff81050a21>] ? worker_thread+0x151/0x420 [<ffffffff810508d0>] ? rescuer_thread+0x300/0x300 [<ffffffff810508d0>] ? rescuer_thread+0x300/0x300 [<ffffffff81054e3e>] ? kthread+0x9e/0xb0 [<ffffffff81484774>] ? kernel_thread_helper+0x4/0x10 [<ffffffff81482a38>] ? retint_restore_args+0x6/0x6 [<ffffffff81054da0>] ? kthread_freezable_should_stop+0x60/0x60 [<ffffffff81484770>] ? gs_change+0xb/0xb Code: 00 00 00 40 80 fe 01 53 19 c9 48 89 fb 48 c7 c0 70 4a 1a 81 f7 d1 48 c7 c2 60 4a 1a 81 83 c1 02 48 8d 7f 70 40 84 f6 48 0f 45 d0 <48> 8b 43 70 a8 10 75 20 48 8b 43 70 a8 20 74 08 8b 83 80 00 00 RIP [<ffffffff811a4a18>] wait_for_key_construction+0x28/0x70 RSP <ffff880b99a15a80> CR2: 0000000000000070 ---[ end trace 59a8d5be7e929e25 ]--- -- William -- 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
