Any keyboard activity causes 10-sec hang

See also http://ubuntuforums.org/showthread.php?t=1627139

Could you provide us with some information regarding your hardware? What kind of keyboard do you have? How is it connected to your system? It'd also be great if you could test this with a Maverick Live CD to ensure that the problem does not exist there.

The original keyboard I had was a "straightforward" USB one. The one I'm using now is a wireless Logitech keyboard that communicates via the mouse charger which is plugged in using USB.

As well as this happening and preventing me from installing on the LiveCD I had this problem when I in-place upgraded Maverick to Natty (it happened after I upgraded, and not before).

My other Maverick partition works fine (which was installed from the Maverick Live CD).

Hello
Can you please update natty and run in a terminal
apport-collect 690801
Thnks
fabio

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This is almost certainly a kernel bug of some sort. I assume if you swap back to the original keyboard it works properly?

[ 7.640314] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1e.0/0000:04:04.1/usb5/5-2/5-2:1.0/input/input2
[ 7.640417] logitech 0003:046D:C512.0001: input,hidraw0: USB HID v1.10 Keyboard [Logitech USB Receiver] on usb-0000:04:04.1-2/input0
[ 7.650650] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1e.0/0000:04:04.1/usb5/5-2/5-2:1.1/input/input3
[ 7.650747] logitech 0003:046D:C512.0002: input,hidraw1: USB HID v1.10 Mouse [Logitech USB Receiver] on usb-0000:04:04.1-2/input1

Fwiw, I notice in the dmesg a call trace got dumped, but probably not related to the keyboard issue.

[ 592.444640] ------------[ cut here ]------------
[ 592.444662] WARNING: at /build/buildd/linux-2.6.37/ubuntu/aufs/plink.c:425 au_plink_append+0x2dc/0x2f0 [aufs]()
[ 592.444664] Hardware name: Dell DXP061
[ 592.444666] unexpectedly many pseudo links, 101
[ 592.444667] Modules linked in: binfmt_misc parport_pc ppdev lp dm_crypt parport snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event snd_seq rt73usb crc_itu_t snd_timer rt2x00usb rt2x00lib snd_seq_device mac80211 snd psmouse soundcore cfg80211 dcdbas shpchp snd_page_alloc serio_raw squashfs aufs isofs nls_iso8859_1 nls_cp437 vfat fat dm_raid45 xor btrfs zlib_deflate libcrc32c hid_logitech ff_memless usbhid hid usb_storage uas radeon ttm drm_kms_helper drm ahci i2c_algo_bit e1000e libahci
[ 592.444705] Pid: 5837, comm: dpkg Tainted: G W 2.6.37-9-generic #22-Ubuntu
[ 592.444707] Call Trace:
[ 592.444715] [<ffffffff8106620f>] warn_slowpath_common+0x7f/0xc0
[ 592.444718] [<ffffffff81066306>] warn_slowpath_fmt+0x46/0x50
[ 592.444726] [<ffffffffa02dad4c>] au_plink_append+0x2dc/0x2f0 [aufs]
[ 592.444733] [<ffffffffa02d5e84>] au_cpup_or_link+0x144/0x270 [aufs]
[ 592.444741] [<ffffffffa02d68b8>] aufs_link+0x1c8/0x580 [aufs]
[ 592.444745] [<ffffffff8116f1e3>] ? generic_permission+0x23/0xc0
[ 592.444748] [<ffffffff8116ff1c>] vfs_link+0xfc/0x180
[ 592.444751] [<ffffffff81173e10>] sys_linkat+0x170/0x180
[ 592.444755] [<ffffffff815baafe>] ? _raw_spin_lock+0xe/0x20
[ 592.444758] [<ffffffff8116fdc1>] ? path_put+0x31/0x40
[ 592.444761] [<ffffffff8118e967>] ? do_utimes+0xf7/0x100
[ 592.444764] [<ffffffff81173e3e>] sys_link+0x1e/0x20
[ 592.444767] [<ffffffff8100c0c2>] system_call_fastpath+0x16/0x1b
[ 592.444770] ---[ end trace 9d495e25aeb5fca8 ]---

Thanks for taking a look at this Bruce. Swapping to the other "standard USB" keyboard produces exactly the same problem (and the problem started before I acquired the new keyboard).

*Bryce
My apologies!

Greg Auger, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command in the development release from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please do not test the kernel in the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. As well, please comment on which kernel version specifically you tested.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream', and comment as to why specifically you were unable to test it.

Please let us know your results. Thanks in advance.

Helpful Bug Reporting Links:
https://help.ubuntu.com/community/ReportingBugs#Bug_Reporting_Etiquette
https://help.ubuntu.com/community/ReportingBugs#A3._Make_sure_the_bug_hasn.27t_already_been_reported
https://help.ubuntu.com/community/ReportingBugs#Adding_Apport_Debug_Information_to_an_Existing_Launchpad_Bug
https://help.ubuntu.com/community/ReportingBugs#Adding_Additional_Attachments_to_an_Existing_Launchpad_Bug

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