Re: Hotplug borked after suspend/resume in Linux-3.3 ?

[Jeff Garzik <jgarzik@pobox.com>]

On 04/17/2012 09:46 PM, Mark Lord wrote:
> On 12-04-17 09:37 PM, Mark Lord wrote:
>> On 12-04-17 09:29 PM, Lin Ming wrote:
>>>
>>> I'm working on the hotplug issue fix.
>>>
>>> Before the fix is ready, here is the one-line patch.
>>> Could you give it a try?
>> ..
>>> --- a/drivers/ata/libata-transport.c
>>> +++ b/drivers/ata/libata-transport.c
>>> @@ -294,6 +294,7 @@ int ata_tport_add(struct device *parent,
>>>   	device_enable_async_suspend(dev);
>>>   	pm_runtime_set_active(dev);
>>>   	pm_runtime_enable(dev);
>>> +	pm_runtime_forbid(dev);
>>>
>> ..
>>
>> I'm rebuilding the kernel right now.. should take about 5min or less to test.
>
> Yeah, that (by itself) is enough to make things work again.
> This looks like the one-liner that we really need upstream and in -stable.
>
> Jeff?
>
> I'll now use it instead of the (much larger) "v2 disable runtime pm" thing.

Yeah I like that a -whole- lot better...

Will push upstream tomorrow.