Bug 4495
| Summary: | 2.6.12-rc6: Unplugging/replugging USB Logitech headset when in use busts USB, kills keyboard | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Waldo (vvaldo) |
| Component: | Sound(ALSA) | Assignee: | Jaroslav Kysela (perex) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | high | CC: | greg |
| Priority: | P2 | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.12-rc2 | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
solution is here: http://cvs.sourceforge.net/viewcvs.py/alsa/alsa-kernel/usb/usbaudio.c?r1=1.119&r2=1.120 http://cvs.sourceforge.net/viewcvs.py/alsa/alsa-kernel/usb/usx2y/usbusx2y.c?r1=1.9&r2=1.10 These patches to 2.6.12-rc4 eliminated the crash. Thanks to Daniel Drake for finding this. Hope this makes it to the official kernel soon. W This can be closed as CODE_FIX/CLOSED since the fix is included in Linus' tree. These fixes were reported in 2.6.12-rc2 and have not yet shown up in the official 2.6.12-rc6. Will they be included anytime soon? Sorry, I'm not sure how this works exactly, but it would be nice for everyone w/this bug to not have to patch manually w/every new release. W Hm, that's up to the ALSA developers. reopening and assigning to them... updating description-- bug persists into 2.6.12-rc6 Patches have been sent to Linus for this, hopefully will make it in before 2.6.12 is out. I'm gonna close this, as it's finally fixed in 2.6.12. Thanks Greg, Daniel, Linus, and everyone else who helped w/this! W |
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