Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I was trying to set up a DRBD test device, to try and debug some massive performance problems, when I got this error: [3490985.782782] [3490985.786747] kobject_add_internal failed for 147:42 with -EEXIST, don't try to register things with the same name in the same directory. [3490985.798457] Pid: 4507, comm: cqueue Not tainted 2.6.26-2-amd64 #1 [3490985.812562] [3490985.812563] Call Trace: [3490985.816902] [<ffffffff8031b915>] kobject_add_internal+0x13f/0x17e [3490985.824903] [<ffffffff8031bd52>] kobject_add+0x74/0x7c [3490985.832405] [<ffffffff8020d7bb>] show_trace+0x40/0x57 [3490985.838898] [<ffffffff8020e490>] dump_stack+0x69/0x6f [3490985.846898] [<ffffffff8031b76c>] kobject_get+0x12/0x17 [3490985.851197] [<ffffffff80383371>] get_device+0x17/0x20 [3490985.858962] [<ffffffff80383981>] device_add+0x9b/0x53f [3490985.864943] [<ffffffff8031b5d6>] kobject_init+0x41/0x69 [3490985.871024] [<ffffffff80383ed1>] device_create_vargs+0x9a/0xc6 [3490985.880350] [<ffffffff8027d5fb>] bdi_register+0x57/0xb4 [3490985.886514] [<ffffffff8031fb19>] sprintf+0x51/0x59 [3490985.891204] [<ffffffff80383e13>] device_add+0x52d/0x53f [3490985.898366] [<ffffffff80299615>] __percpu_alloc_mask+0x62/0x7d [3490985.952248] [<ffffffff803125e8>] exact_lock+0x0/0x14 [3490985.958121] [<ffffffff802dd64f>] register_disk+0x5d/0x146 [3490985.996408] [<ffffffff803128f8>] add_disk+0x64/0x87 [3490986.004564] [<ffffffffa01c5a99>] :drbd:drbd_new_device+0xcf/0x1ab [3490986.012572] [<ffffffffa01c7543>] :drbd:ensure_mdev+0x39/0xbc [3490986.020569] [<ffffffffa01a915b>] :cn:cn_queue_wrapper+0x0/0x45 [3490986.027443] [<ffffffffa01c8a2f>] :drbd:drbd_connector_callback+0x69/0x1b5 [3490986.039435] [<ffffffffa01a915b>] :cn:cn_queue_wrapper+0x0/0x45 [3490986.043375] [<ffffffffa01a9181>] :cn:cn_queue_wrapper+0x26/0x45 [3490986.050233] [<ffffffff802430a4>] run_workqueue+0x82/0x111 [3490986.056593] [<ffffffff80243971>] worker_thread+0xd5/0xe0 [3490986.063561] [<ffffffff802461a5>] autoremove_wake_function+0x0/0x2e [3490986.071562] [<ffffffff8024389c>] worker_thread+0x0/0xe0 [3490986.077725] [<ffffffff8024607f>] kthread+0x47/0x74 [3490986.084986] [<ffffffff802300ed>] schedule_tail+0x27/0x5c [3490986.092072] [<ffffffff8020cf38>] child_rip+0xa/0x12 [3490986.098347] [<ffffffff80246038>] kthread+0x0/0x74 [3490986.104387] [<ffffffff8020cf2e>] child_rip+0x0/0x12 [3490986.113354] It seems that some kind of registration failed. I suppose this is a bug? -- Med venlig hilsen Christian Iversen