Public bug reported:
At any point when logged into the system, a message will come up in the
terminal saying that it disabled IRQ #7 and that nobody cared. However,
once that occurs, the USB flash drive will no longer be recognized when
inserted. I only knew this because this issue once happened to me when
I was running Knoppix. I don't recall the issue (USB not responding)
ever happening on Feisty.. Here is the info from dmesg:
Jul 3 20:19:33 jayhawk kernel: [ 52.156523] Bluetooth: RFCOMM ver 1.8
Jul 3 20:19:40 jayhawk kernel: [ 58.820888] NET: Registered protocol family
10
Jul 3 20:19:40 jayhawk kernel: [ 58.821113] lo: Disabled Privacy Extensions
Jul 3 20:19:40 jayhawk kernel: [ 58.821375] ADDRCONF(NETDEV_UP): eth2: link
is not ready
Jul 3 20:19:40 jayhawk kernel: [ 58.821395] ADDRCONF(NETDEV_UP): eth3: link
is not ready
Jul 3 20:20:07 jayhawk kernel: [ 85.986210] ADDRCONF(NETDEV_CHANGE): eth3:
link becomes ready
Jul 3 20:20:22 jayhawk kernel: [ 101.049150] eth3: no IPv6 routers present
Jul 3 20:20:46 jayhawk kernel: [ 124.996945] set_level status: 0
Jul 3 20:20:46 jayhawk kernel: [ 125.020497] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.289783] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.314438] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.339745] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.364104] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.384078] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.409074] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.427995] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.451996] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.472395] set_level status: 0
Jul 3 20:20:47 jayhawk kernel: [ 125.491722] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.689086] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.707887] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.727777] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.747868] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.767784] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.787549] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.807531] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.827525] set_level status: 0
Jul 3 20:21:16 jayhawk kernel: [ 154.847767] set_level status: 0
Jul 3 20:22:06 jayhawk kernel: [ 204.681027] irq 7: nobody cared (try booting
with the "irqpoll" option)
Jul 3 20:22:06 jayhawk kernel: [ 204.681034]
Jul 3 20:22:06 jayhawk kernel: [ 204.681035] Call Trace:
Jul 3 20:22:06 jayhawk kernel: [ 204.681038] <IRQ>
[__report_bad_irq+30/128] __report_bad_irq+0x1e/0x80
Jul 3 20:22:06 jayhawk kernel: [ 204.681065] [note_interrupt+643/704]
note_interrupt+0x283/0x2c0
Jul 3 20:22:06 jayhawk kernel: [ 204.681074] [handle_level_irq+268/320]
handle_level_irq+0x10c/0x140
Jul 3 20:22:06 jayhawk kernel: [ 204.681082] [do_IRQ+123/256]
do_IRQ+0x7b/0x100
Jul 3 20:22:06 jayhawk kernel: [ 204.681086] [default_idle+0/64]
default_idle+0x0/0x40
Jul 3 20:22:06 jayhawk kernel: [ 204.681091] [ret_from_intr+0/10]
ret_from_intr+0x0/0xa
Jul 3 20:22:06 jayhawk kernel: [ 204.681093] <EOI> [unix_poll+0/176]
unix_poll+0x0/0xb0
Jul 3 20:22:06 jayhawk kernel: [ 204.681106] [default_idle+41/64]
default_idle+0x29/0x40
Jul 3 20:22:06 jayhawk kernel: [ 204.681111] [cpu_idle+112/192]
cpu_idle+0x70/0xc0
Jul 3 20:22:06 jayhawk kernel: [ 204.681127]
Jul 3 20:22:06 jayhawk kernel: [ 204.681129] handlers:
Jul 3 20:22:06 jayhawk kernel: [ 204.681131] [_end+128211464/2130324728]
(usb_hcd_irq+0x0/0x60 [usbcore])
Jul 3 20:22:06 jayhawk kernel: [ 204.681152] Disabling IRQ #7
Jul 3 20:22:29 jayhawk kernel: [ 215.165770] set_level status: 0
** Affects: Ubuntu
Importance: Undecided
Status: New
--
USB port stops working after irq 7 disabled
https://bugs.launchpad.net/bugs/123853
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