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Old 12-20-2011, 07:58 PM
Joseph Salisbury
 
Default LP:904569 Added To Kernel Team Hot List

Hello,

I've added the following bug to the Kernel Team Hot List[1]:
LP:904569[2]

* This bug appears to be a regression in the 3.0.0-15 update.
* There are a few duplicates so far.
* I plan on starting a bisect to try and identify what change introduced
the regression.


Thanks,

Joe


[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/904569
[2]
http://reports.qa.ubuntu.com/reports/kernel-bugs/reports/_kernel_hot_.html


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Old 12-22-2011, 05:16 PM
Andy Whitcroft
 
Default LP:904569 Added To Kernel Team Hot List

On Tue, Dec 20, 2011 at 03:58:09PM -0500, Joseph Salisbury wrote:
> Hello,
>
> I've added the following bug to the Kernel Team Hot List[1]:
> LP:904569[2]

Be nice to include the one line subject for these when you send them
out, save me opening the bug to know if I am the right one to open the
bug

Linux 3.0.0-15-generic-pae causes laptops to fail to resume from
suspend (Dell XPS 1645, Sony Vaio VPCF1390)

I also note that Kano has done a full bisect on his system and comes out
as the commit below, we should probabally put up an official test kernel
with this reverted:

commit b01b383bbd04e9dcf7d9fe6ca3751b77ccdc533c
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Fri Dec 2 16:02:45 2011 +0100

clockevents: Set noop handler in clockevents_exchange_device()

commit de28f25e8244c7353abed8de0c7792f5f883588c upstream.

If a device is shutdown, then there might be a pending interrupt,
which will be processed after we reenable interrupts, which causes the
original handler to be run. If the old handler is the (broadcast)
periodic handler the shutdown state might hang the kernel completely.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

-apw

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Old 01-02-2012, 02:55 PM
Stefan Bader
 
Default LP:904569 Added To Kernel Team Hot List

On 22.12.2011 19:16, Andy Whitcroft wrote:
> On Tue, Dec 20, 2011 at 03:58:09PM -0500, Joseph Salisbury wrote:
>> Hello,
>>
>> I've added the following bug to the Kernel Team Hot List[1]:
>> LP:904569[2]
>
> Be nice to include the one line subject for these when you send them
> out, save me opening the bug to know if I am the right one to open the
> bug
>
> Linux 3.0.0-15-generic-pae causes laptops to fail to resume from
> suspend (Dell XPS 1645, Sony Vaio VPCF1390)
>
> I also note that Kano has done a full bisect on his system and comes out
> as the commit below, we should probabally put up an official test kernel
> with this reverted:
>
> commit b01b383bbd04e9dcf7d9fe6ca3751b77ccdc533c
> Author: Thomas Gleixner <tglx@linutronix.de>
> Date: Fri Dec 2 16:02:45 2011 +0100
>
> clockevents: Set noop handler in clockevents_exchange_device()
>
> commit de28f25e8244c7353abed8de0c7792f5f883588c upstream.
>
> If a device is shutdown, then there might be a pending interrupt,
> which will be processed after we reenable interrupts, which causes the
> original handler to be run. If the old handler is the (broadcast)
> periodic handler the shutdown state might hang the kernel completely.
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
>
> -apw
>

Seems now in upstream Linux as a revert with a target / cc to stable:

commit 3b87487ac5008072f138953b07505a7e3493327f
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri Dec 30 13:24:40 2011 -0800

Revert "clockevents: Set noop handler in clockevents_exchange_device()"

So far I have not seen it in the 3.0 queue, but likely just a matter of time.

-Stefan

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