Hi, I have got a monitor with built-in hub to which a keyboard, mouse, and card reader are connected. At one occasion when I switched the monitor off, the following oops happened. I have updated from 2.6.36-rc4 to 2.6.36-rc7 on Saturday evening. I.e. it may be a regression after 2.6.36-rc4, but isn't necessarily so. Oct 11 22:16:30 stein -- MARK -- Oct 11 22:29:21 stein kernel: usb 1-1.2: USB disconnect, address 14 Oct 11 22:29:21 stein kernel: drivers/hid/usbhid/hid-core.c: can't reset device, 0000:00:12.2-1.3/input0, status -71 Oct 11 22:29:21 stein kernel: usb 1-1: clear tt 3 (00f0) error -71 Oct 11 22:29:21 stein kernel: drivers/hid/usbhid/hid-core.c: can't reset device, 0000:00:12.2-1.3/input1, status -71 Oct 11 22:29:21 stein kernel: hub 1-1:1.0: hub_port_status failed (err = -71) Oct 11 22:29:21 stein kernel: hub 1-1:1.0: connect-debounce failed, port 2 disabled Oct 11 22:29:21 stein kernel: usb 1-1: USB disconnect, address 12 Oct 11 22:29:21 stein kernel: usb 1-1.1: USB disconnect, address 13 Oct 11 22:29:21 stein kernel: usb 1-1.1.1: USB disconnect, address 16 Oct 11 22:29:21 stein kernel: usb 1-1: clear tt 3 (00f0) error -71 Oct 11 22:29:21 stein kernel: usb 1-1.3: USB disconnect, address 15 Oct 11 22:29:21 stein kernel: ehci_hcd 0000:00:12.2: qh ffff880208f07af0 (#00) state 5 Oct 11 22:29:21 stein kernel: drivers/hid/usbhid/hid-core.c: can't reset device, 0000:00:12.2-1.3/input0, status -108 Oct 11 22:29:21 stein kernel: usb 1-1: clear tt 3 (00f0) error -19 Oct 11 22:29:21 stein kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000060 Oct 11 22:29:21 stein kernel: IP: [<ffffffff8129dbd8>] ehci_clear_tt_buffer_complete+0x31/0x72 Oct 11 22:29:21 stein kernel: PGD 16b51f067 PUD 16b520067 PMD 0 Oct 11 22:29:21 stein kernel: Oops: 0002 [#1] PREEMPT SMP DEBUG_PAGEALLOC Oct 11 22:29:21 stein kernel: last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/0000:02:00.0/0000:03:02.0/0000:05:00.0/fw3/fw3.0/model_name Oct 11 22:29:21 stein kernel: CPU 3 Oct 11 22:29:21 stein kernel: Modules linked in: firedtv dvb_core ieee1394 firewire_ohci firewire_core crc_itu_t usb_storage cpufreq_ondemand powernow_k8 freq_table mperf nfsd lockd sunrpc exportfs snd_pcm_oss snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device ext4 jbd2 crc16 sr_mod yenta_socket snd_hda_codec_atihdmi cdrom snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_pcm pcmcia_core k10temp pcmcia_rsrc snd_timer pata_atiixp snd sg snd_page_alloc r8169 mii thermal processor Oct 11 22:29:21 stein kernel: Oct 11 22:29:21 stein kernel: Pid: 25071, comm: kworker/3:3 Not tainted 2.6.36-rc7 #8 M3A78-EM/System Product Name Oct 11 22:29:21 stein kernel: RIP: 0010:[<ffffffff8129dbd8>] [<ffffffff8129dbd8>] ehci_clear_tt_buffer_complete+0x31/0x72 Oct 11 22:29:21 stein kernel: RSP: 0018:ffff880208f13d10 EFLAGS: 00010002 Oct 11 22:29:21 stein kernel: RAX: 0000000000000282 RBX: 0000000000000000 RCX: ffff8801f3539e80 Oct 11 22:29:21 stein kernel: RDX: 0000000000003101 RSI: ffffffff81ca6de0 RDI: ffff88021fc67608 Oct 11 22:29:21 stein kernel: RBP: ffff880208f13d40 R08: ffffffff81ca6de0 R09: 0000000000000000 Oct 11 22:29:21 stein kernel: R10: ffffffff8129dbd5 R11: ffffffff8129379d R12: ffff88021fc673f0 Oct 11 22:29:21 stein kernel: R13: ffff88021fc67608 R14: 0000000000000282 R15: ffff88021fc675e8 Oct 11 22:29:21 stein kernel: FS: 00007f2b5188c700(0000) GS:ffff880002b80000(0000) knlGS:00000000f6ac7700 Oct 11 22:29:21 stein kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Oct 11 22:29:21 stein kernel: CR2: 0000000000000060 CR3: 000000016b51e000 CR4: 00000000000006e0 Oct 11 22:29:21 stein kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Oct 11 22:29:21 stein kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Oct 11 22:29:21 stein kernel: Process kworker/3:3 (pid: 25071, threadinfo ffff880208f12000, task ffff8801f3539e80) Oct 11 22:29:21 stein kernel: Stack: Oct 11 22:29:21 stein kernel: 0000000008f13d20 ffff88020ad4ca18 0000000000000282 ffff88020e2bca88 Oct 11 22:29:21 stein kernel: <0> ffff88020e2d37a8 ffff88020e2d38a0 ffff880208f13da0 ffffffff8128cc12 Oct 11 22:29:21 stein kernel: <0> 0000000000000000 0000000000000000 ffff8802000003e8 ffff88020e2d38d0 Oct 11 22:29:21 stein kernel: Call Trace: Oct 11 22:29:21 stein kernel: [<ffffffff8128cc12>] hub_tt_work+0xd9/0x11c Oct 11 22:29:21 stein kernel: [<ffffffff81045efa>] process_one_work+0x258/0x402 Oct 11 22:29:21 stein kernel: [<ffffffff81045e98>] ? process_one_work+0x1f6/0x402 Oct 11 22:29:21 stein kernel: [<ffffffff810476f0>] ? worker_thread+0x0/0x311 Oct 11 22:29:21 stein kernel: [<ffffffff8128cb39>] ? hub_tt_work+0x0/0x11c Oct 11 22:29:21 stein kernel: [<ffffffff810476f0>] ? worker_thread+0x0/0x311 Oct 11 22:29:21 stein kernel: [<ffffffff810478cb>] worker_thread+0x1db/0x311 Oct 11 22:29:21 stein kernel: [<ffffffff810476f0>] ? worker_thread+0x0/0x311 Oct 11 22:29:21 stein kernel: [<ffffffff8104b54c>] kthread+0x81/0x89 Oct 11 22:29:21 stein kernel: [<ffffffff81002dd4>] kernel_thread_helper+0x4/0x10 Oct 11 22:29:21 stein kernel: [<ffffffff8102db9f>] ? finish_task_switch+0x69/0xa9 Oct 11 22:29:21 stein kernel: [<ffffffff81341000>] ? restore_args+0x0/0x30 Oct 11 22:29:21 stein kernel: [<ffffffff8104b4cb>] ? kthread+0x0/0x89 Oct 11 22:29:21 stein kernel: [<ffffffff81002dd0>] ? kernel_thread_helper+0x0/0x10 Oct 11 22:29:21 stein kernel: Code: 4c 8d bf f8 01 00 00 41 56 41 55 4c 8d af 18 02 00 00 41 54 49 89 fc 4c 89 ef 53 48 83 ec 08 48 8b 5e 20 e8 2f 28 0a 00 49 89 c6 <80> 63 60 fe 80 7b 49 03 75 20 48 8d 43 18 48 39 43 18 74 16 41 Oct 11 22:29:21 stein kernel: RIP [<ffffffff8129dbd8>] ehci_clear_tt_buffer_complete+0x31/0x72 Oct 11 22:29:21 stein kernel: RSP <ffff880208f13d10> Oct 11 22:29:21 stein kernel: CR2: 0000000000000060 Oct 11 22:29:21 stein kernel: ---[ end trace 3730347d8bf09403 ]--- Oct 11 22:29:21 stein kernel: note: kworker/3:3[25071] exited with preempt_count 1 Oct 11 22:35:03 stein syslog-ng[3980]: syslog-ng starting up; version='3.1.2' -- Stefan Richter -=====-==-=- =-=- -=-== http://arcgraph.de/sr/ -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
