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Date: Thu, 14 Apr 2005 12:53:59 -0700 From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: [Bugme-new] [Bug 4495] New: 2.6.12-rc2: Unplugging/replugging USB Logitech headset when in use busts USB, kills keyboard http://bugme.osdl.org/show_bug.cgi?id=4495 Summary: 2.6.12-rc2: Unplugging/replugging USB Logitech headset when in use busts USB, kills keyboard Kernel Version: 2.6.12-rc2 Status: NEW Severity: high Owner: [EMAIL PROTECTED] Submitter: [EMAIL PROTECTED] Distribution: Gentoo (stable) Hardware Environment: amd64 3500+ w/1 gig RAM. USB Logitech headset. PS/2 keyboard, USB 5-button Intellimouse. NForce 3 chipset. Box is a Shuttle, model SN95G5. Software Environment: GNOME 2.10 (although it crashed w/2.8 too), Skype (to demonstrate the problem). Kernel is 2.6.12-rc2. Problem Description: Hotplugging my USB Logitech headset works fine...unless I'm actually using it, at which point re-plugging does nothing to restore the device. Also, when replugging it, my ps/2 keyboard locks up and accepts no input. Finally, when I attempt to reboot or shutdown following this, the shutdown sequence does not proceed past clearing the screen. Rather, it hangs just after GNOME and gdm quit. Steps to reproduce: (All debug messages below are from dmesg) 1. Upon startup, the logitech device is recognized. (This is a bit of the startup sequence messages in dmesg): usb 2-1.1: new full speed USB device using ohci_hcd and address 3 usb 2-1.1: ep0 maxpacket = 8 usb 2-1.1: skipped 11 descriptors after interface usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: default language 0x0409 usb 2-1.1: new device strings: Mfr=1, Product=2, SerialNumber=0 usb 2-1.1: Product: Logitech USB Headset usb 2-1.1: Manufacturer: Logitech usb 2-1.1: hotplug usb 2-1.1: adding 2-1.1:1.0 (config #1, interface 0) usb 2-1.1:1.0: hotplug usb 2-1.1: adding 2-1.1:1.1 (config #1, interface 1) usb 2-1.1:1.1: hotplug usb 2-1.1: adding 2-1.1:1.2 (config #1, interface 2) usb 2-1.1:1.2: hotplug 2. I'll demonstrate that USB unplug/replug works normally when the USB Logitech headset is not actively being used: hub 2-1:1.0: state 5 ports 4 chg 0000 evt 0002 hub 2-1:1.0: port 1, status 0100, change 0001, 12 Mb/s usb 2-1.1: USB disconnect, address 3 usb 2-1.1: usb_disable_device nuking all URBs usb 2-1.1: unregistering interface 2-1.1:1.0 usb 2-1.1:1.0: hotplug usb 2-1.1: unregistering interface 2-1.1:1.1 usb 2-1.1:1.1: hotplug usb 2-1.1: unregistering interface 2-1.1:1.2 usb 2-1.1:1.2: hotplug usb 2-1.1: unregistering device usb 2-1.1: hotplug hub 2-1:1.0: debounce: port 1: total 100ms stable 100ms status 0x100 hub 2-1:1.0: state 5 ports 4 chg 0000 evt 0002 hub 2-1:1.0: port 1, status 0101, change 0001, 12 Mb/s hub 2-1:1.0: debounce: port 1: total 100ms stable 100ms status 0x101 usb 2-1.1: new full speed USB device using ohci_hcd and address 6 usb 2-1.1: ep0 maxpacket = 8 usb 2-1.1: skipped 11 descriptors after interface usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: default language 0x0409 usb 2-1.1: new device strings: Mfr=1, Product=2, SerialNumber=0 usb 2-1.1: Product: Logitech USB Headset usb 2-1.1: Manufacturer: Logitech usb 2-1.1: hotplug usb 2-1.1: adding 2-1.1:1.0 (config #1, interface 0) usb 2-1.1:1.0: hotplug snd-usb-audio 2-1.1:1.0: usb_probe_interface snd-usb-audio 2-1.1:1.0: usb_probe_interface - got id usb 2-1.1: adding 2-1.1:1.1 (config #1, interface 1) usb 2-1.1:1.1: hotplug usb 2-1.1: adding 2-1.1:1.2 (config #1, interface 2) usb 2-1.1:1.2: hotplug hub 2-1:1.0: 198mA power budget left hub 2-1:1.0: state 5 ports 4 chg 0000 evt 0002 3. Now i'll unplug while talking to someone on Skype: hub 2-1:1.0: state 5 ports 4 chg 0000 evt 0002 hub 2-1:1.0: port 1, status 0100, change 0001, 12 Mb/s usb 2-1.1: USB disconnect, address 6 usb 2-1.1: usb_disable_device nuking all URBs ohci_hcd 0000:00:02.0: shutdown urb ffff81002ed08900 pipe 00008600 ep1out-iso ohci_hcd 0000:00:02.0: shutdown urb ffff81002ed08a80 pipe 00008600 ep1out-iso usb 2-1.1: unregistering interface 2-1.1:1.0 usb 2-1.1:1.0: hotplug usb 2-1.1: unregistering interface 2-1.1:1.1 usb 2-1.1:1.1: hotplug usb 2-1.1: unregistering interface 2-1.1:1.2 usb 2-1.1:1.2: hotplug usb 2-1.1: unregistering device usb 2-1.1: hotplug hub 2-1:1.0: debounce: port 1: total 100ms stable 100ms status 0x100 4. Now I'll replug it. Note that this is where I lose the keyboard. hub 2-1:1.0: state 5 ports 4 chg 0000 evt 0002 hub 2-1:1.0: port 1, status 0101, change 0001, 12 Mb/s hub 2-1:1.0: debounce: port 1: total 100ms stable 100ms status 0x101 usb 2-1.1: new full speed USB device using ohci_hcd and address 7 usb 2-1.1: ep0 maxpacket = 8 usb 2-1.1: skipped 11 descriptors after interface usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: skipped 2 descriptors after interface usb 2-1.1: skipped 1 descriptor after endpoint usb 2-1.1: default language 0x0409 usb 2-1.1: new device strings: Mfr=1, Product=2, SerialNumber=0 usb 2-1.1: Product: Logitech USB Headset usb 2-1.1: Manufacturer: Logitech usb 2-1.1: hotplug usb 2-1.1: adding 2-1.1:1.0 (config #1, interface 0) usb 2-1.1:1.0: hotplug snd-usb-audio 2-1.1:1.0: usb_probe_interface snd-usb-audio 2-1.1:1.0: usb_probe_interface - got id cannot find the slot for index 1 (range 0-1) cannot create card instance 0 snd-usb-audio: probe of 2-1.1:1.0 failed with error -5 usb 2-1.1: adding 2-1.1:1.1 (config #1, interface 1) usb 2-1.1:1.1: hotplug usb 2-1.1: adding 2-1.1:1.2 (config #1, interface 2) usb 2-1.1:1.2: hotplug hub 2-1:1.0: 198mA power budget left hub 2-1:1.0: state 5 ports 4 chg 0000 evt 0002 5. Since I cannot type any more, I have no choice but to shutdown. GNOME quits fine. So does gdm. Then the screen blanks and I get a non-flashing cursor in the top left of the screen, and a total lockup. Here's what dmesg has to say about it: Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: <ffffffff8023ba80>{strlen+0} PGD 3ee97067 PUD 3ee8f067 PMD 0 Oops: 0000 [1] PREEMPT CPU 0 Modules linked in: it87 i2c_sensor i2c_isa i2c_nforce2 i2c_core sk98lin snd_usb_audio snd_usb_lib snd_rawmidi snd_intel8x0 snd_ac97_codec nvidia video loop Pid: 3, comm: events/0 Tainted: P 2.6.12-rc2 RIP: 0010:[<ffffffff8023ba80>] <ffffffff8023ba80>{strlen+0} RSP: 0018:ffff81000214bbc0 EFLAGS: 00010282 RAX: 0000000000000058 RBX: ffff8100022560e0 RCX: 000000000000001a RDX: ffff8100022509f0 RSI: 00000000000000d0 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffff810002256058 R09: 00000000000003a8 R10: ffffffff802a0da0 R11: ffffffff80325e00 R12: ffff8100022509f0 R13: 00000000000000d0 R14: ffff8100022560e0 R15: 000000000000001a FS: 00002aaaaade7ae0(0000) GS:ffffffff80557f00(0000) knlGS:00000000560e2b30 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000003eea5000 CR4: 00000000000006e0 Process events/0 (pid: 3, threadinfo ffff81000214a000, task ffff81003ffb06d0) Stack: ffffffff80238dbe ffffffff804bc620 ffff810002256098 ffff8100022509f0 00000000000003a8 ffff810002256058 ffffffff802a0e0a 0000000000000286 0000000000000003 000000000226ac00 Call Trace:<ffffffff80238dbe>{kobject_get_path+30} <ffffffff802a0e0a>{class_hotplug+106} <ffffffff80239bc2>{kobject_hotplug+498} <ffffffff802391de>{kobject_del+14} <ffffffff802a1360>{class_device_del+256} <ffffffff802a1389>{class_device_unregister+9} <ffffffff80359039>{snd_unregister_device+185} <ffffffff80363bc3>{snd_pcm_dev_unregister+115} <ffffffff803599f0>{snd_card_free_thread+0} <ffffffff8035e5ba>{snd_device_free+90} <ffffffff8035e81b>{snd_device_free_all+75} <ffffffff803598ed>{snd_card_free+349} <ffffffff801458f0>{autoremove_wake_function+0} <ffffffff801458f0>{autoremove_wake_function+0} <ffffffff80359a80>{snd_card_free_thread+144} <ffffffff8014099d>{worker_thread+541} <ffffffff8012b080>{default_wake_function+0} <ffffffff8012b080>{default_wake_function+0} <ffffffff80140780>{worker_thread+0} <ffffffff801452ad>{kthread+205} <ffffffff8010e357>{child_rip+8} <ffffffff80236450>{dummy_d_instantiate+0} <ffffffff801451e0>{kthread+0} <ffffffff8010e34f>{child_rip+0} Code: 80 3f 00 48 89 f8 74 08 48 ff c0 80 38 00 eb f6 48 29 f8 c3 RIP <ffffffff8023ba80>{strlen+0} RSP <ffff81000214bbc0> CR2: 0000000000000000 At this point, all I can do is reset the machine. This error is reproducible every time. Hope this is useful. W ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
