Re: [ltp] T40, ACPI, and sleeping

From: morpheus (morpheus_at_post.harvard.edu)
Date: 01/29/05

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    To: linux-thinkpad@linux-thinkpad.org
Date: Sat, 29 Jan 2005 16:43:30 -0500

    On Sat, 2005-01-29 at 11:42 -0800, Bill Wohler wrote:
    > However, if I "modprobe ath_pci" the system hangs
    SNIP
    >
    > /etc/acpi/sleep:
    >
    > #! /bin/sh
    > /etc/init.d/hotplug stop
    > ifdown ath0
    > rmmod ath_pci ath_rate_onoe ath_hal e1000
    > sync
    > echo 3 > /proc/acpi/sleep
    > #/etc/init.d/hotplug start
    > #modprobe ath_pci
    > #ifup ath0
    This is just a guess, but you should remove ath_hal, wlan and ath_pci.
    You are only removing ath_pci. If you don't remove ath_hal, during
    sleep/resume it could become unstable. Since it is a prerequisite for
    ath_pci, when you try to start ath_pci it hangs waiting for ath_hal.
    Also, why use rmmod instead of modprobe -r? Since you're inserting with
    modprobe makes sense to remove with modprobe for consistency, also
    modprobe takes care of dependencies and options.
    So, I would do this:
    /etc/acpi/sleep:

      #! /bin/sh
      /etc/init.d/hotplug stop
      ifdown ath0
      modprobe -r ath_pci
      modprobe -r ath_hal
      modprobe -r wlan
      sync
      echo 3 > /proc/acpi/sleep
      #/etc/init.d/hotplug start
      modprobe wlan
      modprobe ath_hal
      modprobe ath_pci
      ifup ath0

    Let me know if this works!
    -m 

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