[Bug 98841] New: android emulator broken since d7a2a24 kernel commit

[Bug 98841] New: android emulator broken since d7a2a24 kernel commit

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=98841

            Bug ID: 98841
           Summary: android emulator broken since d7a2a24 kernel commit
           Product: Virtualization
           Version: unspecified
    Kernel Version: 3.17
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: adrian.sandu@asandu.eu
        Regression: No

Hello,

For a while now I've noticed the android emulator not wanting to work anymore
..
With a lil' bit of git bisect I've found this kernel commit
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=d7a2a246a1b5a0b0c803e800019600051e1e6f1a
that seems to break it.

I've mailed the author .. submited a report to the google guys ( not sure if I
did it right ) https://code.google.com/p/android/issues/detail?id=174557 ...

The problem was first reported by someone @ fedora .. 
https://bugzilla.redhat.com/show_bug.cgi?id=1187982

Alot of details ( run logs ) are there.

Let me know if I can help test stuff.

Thanks in advance.

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[Bug 98841] android emulator broken since d7a2a24 kernel commit

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=98841

Adrian Sandu <adrian.sandu@asandu.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|3.17                        |4.0.4

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Re: [Bug 98841] New: android emulator broken since d7a2a24 kernel commit

[Bandan Das]

bugzilla-daemon@bugzilla.kernel.org writes:

> https://bugzilla.kernel.org/show_bug.cgi?id=98841
>
>             Bug ID: 98841
>            Summary: android emulator broken since d7a2a24 kernel commit
>            Product: Virtualization
>            Version: unspecified
>     Kernel Version: 3.17
>           Hardware: All
>                 OS: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: kvm
>           Assignee: virtualization_kvm@kernel-bugs.osdl.org
>           Reporter: adrian.sandu@asandu.eu
>         Regression: No
>
> Hello,
>
> For a while now I've noticed the android emulator not wanting to work anymore
> ..
> With a lil' bit of git bisect I've found this kernel commit
> https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=d7a2a246a1b5a0b0c803e800019600051e1e6f1a
> that seems to break it.
>
> I've mailed the author .. submited a report to the google guys ( not sure if I
> did it right ) https://code.google.com/p/android/issues/detail?id=174557 ...
>
> The problem was first reported by someone @ fedora .. 
> https://bugzilla.redhat.com/show_bug.cgi?id=1187982
>
> Alot of details ( run logs ) are there.
>
> Let me know if I can help test stuff.

Ok, a quick look and it seems the patch is doing the right thing
(as the spec) says. For PHYSBASE it's masking out bits 8-11 and for PHYSMASK
bits 0-10. Are you sure Android Emulator isn't attempting to
write to these reserved regions ?

What happens if you enable ignore_msrs ?
echo Y > /sys/module/kvm/parameters/ignore_msrs

Bandan

> Thanks in advance.

[Bug 98841] android emulator broken since d7a2a24 kernel commit

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=98841

Adrian Sandu <adrian.sandu@asandu.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|4.0.4                       |4.1

--- Comment #1 from Adrian Sandu <adrian.sandu@asandu.eu> ---
Still happening on 4.1-rc6 and all before since ~ 3.17 ..

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[Bug 98841] android emulator broken since d7a2a24 kernel commit

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=98841

--- Comment #2 from Adrian Sandu <adrian.sandu@asandu.eu> ---
Still happening in mainline 4.1 ...

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