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

[Bart Samwel]

Manoj Naik wrote:
> 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.

That would be very interesting indeed.

BTW, AgenT reported earlier in this thread that this worked for him on a 
Thinkpad with exactly that IDE controller. His lspci output was "Intel 
Corp. 82801DBM (ICH4) Ultra ATA Storage Controller (rev 01)", yours said 
"IDE Controller". I don't know if this could make a difference between 
crashing and not crashing...

I think it would be interesting to find out what kind of IDE controllers 
the other people are using. It does seem to be a HD problem, after all. 
As IPW2[12]00 is Intel, it's possible that the laptops all use the same 
Intel IDE controller. So, could anybody else who can reproduce this 
problem please report their exact IDE controller lines/descriptions as 
reported by lspci? (In fact, full lspci output might be preferable, so 
that we can check out other common factors!)

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