REGRESSION Too many wakeups E8400 P5Q

[Luigi Maselli]

INTREPID
Wakeups-from-idle per second : 746,0 interval: 5,0s
no ACPI power usage estimate available

Top causes for wakeups:
  53,7% (535,0) <kernel IPI> : TLB shootdowns
  36,6% (364,2) <interrupt> : uhci_hcd:usb1, fglrx[0]@PCI:1:0:0, rtl8180
   2,3% ( 22,8) <kernel IPI> : Rescheduling interrupts
   1,4% ( 14,0) <interrupt> : uhci_hcd:usb6, ohci1394, ata_piix, ata_piix
   1,0% ( 9,8) <interrupt> : uhci_hcd:usb3, ehci_hcd:usb4, uhci_hcd:usb7,
   0,8% ( 8,0) <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)

HARDY

Wakeups-from-idle per second : 28,9 interval: 10,0s
no ACPI power usage estimate available

Top causes for wakeups:
  22,0% ( 8,0) <interrupt> : uhci_hcd:usb3, uhci_hcd:usb6, ehci_hcd:usb7,
  22,0% ( 8,0) <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)
  22,0% ( 8,0) USB device 7-3 : USB2.0-CRW (Generic)
   5,5% ( 2,0) <kernel core> : clocksource_register (clocksource_watchdog)
   4,7% ( 1,7) gnome-terminal : schedule_timeout (process_timeout)
   4,4% ( 1,6) hald-addon-stor : schedule_timeout (process_timeout)

[Luigi Maselli (grigio)]

I tried to install hardy and the wakeups are again ~300

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Steve Beattie (sbeattie)]

This bug was reported in the Intrepid development cycle; removing regression-potential and marking as regression-release.

[Leann Ogasawara (leannogasawara)]

I'm closing this for now as we did not receive any feedback if this issue remained with Intrepid. Additionally, the latest Jaunty 9.04 release is also available for testing - http://www.ubuntu.com/getubuntu/download . Please feel free to reopen by setting the status back to new if the issue remains with the latest Jaunty release. Thanks.