[Bug 12483] Re: laptop-mode/IDE-APM hang on various laptops

[Manoj Naik]

Bart Samwel wrote:
>> I am seeing this problem with T40 and Atheros (madwifi). lspci reports:
>> 0000:02:02.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01)
>
> Damn. :-/
>
> What's handling IDE on that machine BTW? Intel chipset?

0000:00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 01)

If I switch to console quickly enough (Ctrl-Alt-f1) and use one of the sysrq keys ('t' I think) before the freeze, I get a bunch of errors as follows:

ide: failed opcode was: unknown
hda: task_in_intr: status=??
hda: task_in_intr: error=??

I don't know if it's important but I'll try to note the status/error codes next time this happens.

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laptop-mode/IDE-APM hang on various laptops
https://launchpad.net/bugs/12483