commit 8c86e70acead629aacb4afcd818add66bf6844d9 hangs SPARC64 LDOMs

commit 8c86e70acead629aacb4afcd818add66bf6844d9 hangs SPARC64 LDOMs

[David L Stevens]

I was trying to rebase some patches to the latest net-next and I found that the LDOMs
(Solaris virtual machines) hang on boot.

git bisect narrowed to commit 8c86e70acead629aacb4afcd818add66bf6844d9 and reverting
that makes it work again.

commit 8c86e70acead629aacb4afcd818add66bf6844d9
Author: Vivek Goyal <vgoyal@redhat.com>
Date:   Fri Aug 8 14:25:50 2014 -0700

    resource: provide new functions to walk through resources

    I have added two more functions to walk through resources.

						+-DLS

Re: commit 8c86e70acead629aacb4afcd818add66bf6844d9 hangs SPARC64 LDOMs

[Vivek Goyal]

Hi David,

I put one more commit on top in -rc3 to fix UML crash.

commit 800df627e2eabaf4a921d342a1d5162c843b7fc2
Author: Vivek Goyal <vgoyal@redhat.com>
Date:   Fri Aug 29 15:18:29 2014 -0700

    resource: fix the case of null pointer access


Can you try applying this patch on top of net-next and see if helps
fix the issue.

If not, then it probably is a different issue. Is there anything on
the console? I will need to know some more information to figure out
what's wrong.

Thanks
Vivek

On Fri, Sep 05, 2014 at 11:12:03AM -0400, David L Stevens wrote:
> 
> I was trying to rebase some patches to the latest net-next and I found that the LDOMs
> (Solaris virtual machines) hang on boot.
> 
> git bisect narrowed to commit 8c86e70acead629aacb4afcd818add66bf6844d9 and reverting
> that makes it work again.
> 
> commit 8c86e70acead629aacb4afcd818add66bf6844d9
> Author: Vivek Goyal <vgoyal@redhat.com>
> Date:   Fri Aug 8 14:25:50 2014 -0700
> 
>     resource: provide new functions to walk through resources
> 
>     I have added two more functions to walk through resources.
> 
> 						+-DLS

Re: commit 8c86e70acead629aacb4afcd818add66bf6844d9 hangs SPARC64 LDOMs

[David L Stevens]

On 09/05/2014 12:23 PM, Vivek Goyal wrote:
> 
> Hi David,
> 
> I put one more commit on top in -rc3 to fix UML crash.
> 
> commit 800df627e2eabaf4a921d342a1d5162c843b7fc2
> Author: Vivek Goyal <vgoyal@redhat.com>
> Date:   Fri Aug 29 15:18:29 2014 -0700
> 
>     resource: fix the case of null pointer access
> 
> 
> Can you try applying this patch on top of net-next and see if helps
> fix the issue.
> 
> If not, then it probably is a different issue. Is there anything on
> the console? I will need to know some more information to figure out
> what's wrong.

I'll try it out. I was investigating further, too, by putting pieces
of your patch in until it broke, but haven't hit the problem yet. No,
there's nothing on the console.

						+-DLS

Re: commit 8c86e70acead629aacb4afcd818add66bf6844d9 hangs SPARC64 LDOMs

[David L Stevens]

Vivek,
	That fixes it -- thanks!

				+-DLS

On 09/05/2014 12:23 PM, Vivek Goyal wrote:
> 
> Hi David,
> 
> I put one more commit on top in -rc3 to fix UML crash.
> 
> commit 800df627e2eabaf4a921d342a1d5162c843b7fc2
> Author: Vivek Goyal <vgoyal@redhat.com>
> Date:   Fri Aug 29 15:18:29 2014 -0700
> 
>     resource: fix the case of null pointer access
> 
> 
> Can you try applying this patch on top of net-next and see if helps
> fix the issue.
> 
> If not, then it probably is a different issue. Is there anything on
> the console? I will need to know some more information to figure out
> what's wrong.
> 
> Thanks
> Vivek
> 
> On Fri, Sep 05, 2014 at 11:12:03AM -0400, David L Stevens wrote:
>>
>> I was trying to rebase some patches to the latest net-next and I found that the LDOMs
>> (Solaris virtual machines) hang on boot.
>>
>> git bisect narrowed to commit 8c86e70acead629aacb4afcd818add66bf6844d9 and reverting
>> that makes it work again.
>>
>> commit 8c86e70acead629aacb4afcd818add66bf6844d9
>> Author: Vivek Goyal <vgoyal@redhat.com>
>> Date:   Fri Aug 8 14:25:50 2014 -0700
>>
>>     resource: provide new functions to walk through resources
>>
>>     I have added two more functions to walk through resources.
>>
>> 						+-DLS
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Re: commit 8c86e70acead629aacb4afcd818add66bf6844d9 hangs SPARC64 LDOMs

[David Miller]

From: David L Stevens <david.stevens@oracle.com>
Date: Fri, 05 Sep 2014 12:46:24 -0400

> No, there's nothing on the console.

This might be obvious, but booting with "-p" can help diagnose in
these situations.

There is a quiet period during boot where no console messages actually
get printed.