khbud stuck in D state

[Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>]

Running RH 2.6.23.1-49.fc8 on a new laptop (lenovo t61p).  Unplugged the
serial mouse, plugged it into the other port, plugged my camera into the
original port and found everything in USB land to be dead.


dmesg:

usb 5-2: USB disconnect, address 2

(that's it)

That was the mouse:

Nov 17 16:28:45 t61p kernel: usb 5-2: new low speed USB device using uhci_hcd and address 2
Nov 17 16:28:45 t61p kernel: usb 5-2: configuration #1 chosen from 1 choice
Nov 17 16:28:46 t61p kernel: input: Microsoft Microsoft Wireless Optical Mouse® 1.00 as /class/input/input11
Nov 17 16:28:46 t61p kernel: input: USB HID v1.11 Mouse [Microsoft Microsoft Wireless Optical Mouse® 1.00] on usb-0000:00:1d.0-2                       

khubd is here:

Nov 17 17:46:44 t61p kernel: khubd         D ffff81007ed95be0     0   205      2
Nov 17 17:46:44 t61p kernel:  ffff81007ed95c30 0000000000000046 0000000000000000 ffffffff8102e900
Nov 17 17:46:44 t61p kernel:  ffff81007ed95cf0 ffff81007ed9a000 ffffffff81370660 ffff81007ed9a278
Nov 17 17:46:44 t61p kernel:  000000007ed95bf0 ffff81007ed95c40 ffffffffffffffff 0000000100485032
Nov 17 17:46:44 t61p kernel: Call Trace:
Nov 17 17:46:44 t61p kernel:  [<ffffffff8102e900>] find_busiest_group+0x25b/0x6a2
Nov 17 17:46:44 t61p kernel:  [<ffffffff8125bc22>] schedule_timeout+0x8a/0xad
Nov 17 17:46:44 t61p kernel:  [<ffffffff8103f48e>] process_timeout+0x0/0x5
Nov 17 17:46:44 t61p kernel:  [<ffffffff8125bc1d>] schedule_timeout+0x85/0xad
Nov 17 17:46:44 t61p kernel:  [<ffffffff8125b77b>] wait_for_completion_timeout+0x96/0xd7
Nov 17 17:46:44 t61p kernel:  [<ffffffff81030e96>] default_wake_function+0x0/0xe
Nov 17 17:46:44 t61p kernel:  [<ffffffff811ad8a8>] usb_start_wait_urb+0x67/0xa6
Nov 17 17:46:44 t61p kernel:  [<ffffffff811adae2>] usb_control_msg+0xc8/0xeb
Nov 17 17:46:44 t61p kernel:  [<ffffffff811a8c1c>] hub_port_init+0x37a/0x572
Nov 17 17:46:44 t61p kernel:  [<ffffffff811aa2e1>] hub_thread+0x65f/0xc08
Nov 17 17:46:44 t61p kernel:  [<ffffffff810493dd>] autoremove_wake_function+0x0/0x2e
Nov 17 17:46:44 t61p kernel:  [<ffffffff811a9c82>] hub_thread+0x0/0xc08
Nov 17 17:46:44 t61p kernel:  [<ffffffff81049288>] kthread+0x47/0x73
Nov 17 17:46:44 t61p kernel:  [<ffffffff8100c9e8>] child_rip+0xa/0x12
Nov 17 17:46:44 t61p kernel:  [<ffffffff81049241>] kthread+0x0/0x73
Nov 17 17:46:44 t61p kernel:  [<ffffffff8100c9de>] child_rip+0x0/0x12
Nov 17 17:46:44 t61p kernel: 

Will fiddle with it a bit.

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