ACK: [Yakkety][[PATCH 0/1] Revert "x86/dumpstack: When OOPSing, rewind the stack before do_exit()"

[Seth Forshee]

On Wed, Sep 28, 2016 at 03:10:38PM -0400, Joseph Salisbury wrote:
> BugLink: http://bugs.launchpad.net/bugs/1627198
> 
> == Yakkety Justification ==
> On bug reporters native amd64 box, all 4.8 based kernels boot just fine.  However,
> on his VMWare Fusion 8.5 system, none of the 4.8.0 kernels complete the 
> boot process.
> 
> After a bisect, it was found mainline commit 2deb4be2807 was preventing the
> boot.  A 4.8 based Yakkety test kernel with this commit reverted will in 
> fact boot.  However, when the VM boots, it gets the lightdm login, 
> but it never gets to the desktop.  The system can be accessed by ssh.
> 
> A second bisect has been started due to this second and possible related issue.
> The 4.8-rc1 kernel will boot without issue and get a desktop with commit 2deb4be2807
> reverted.  However, v4.8-rc2 boots, but also fails to get a desktop.  Due to 
> this, the second bisect is between v4.8-rc1 and v4.8-rc2 and commit 2deb4be2807
> is reverted before each build during the bisect.
>  
>     
> == Fix ==
> A revert of mainline commit: 2deb4be28077638591fe5fc593b7f8aabc140f42.
> 
> == Test Case ==
> A test kernel was built with this patch and tested by the original bug reporter.
> The bug reporter states the test kernel allows the system to boot.  However, there
> is not desktop display. 

Ack to reverting to fix the problem for now, but definitely seems
worthwhile to follow up with upstream.