Re: [Xen-devel] Test for osstest, features used in Qubes OS

[George Dunlap <dunlapg@xxxxxxxxx>]

On Mon, May 21, 2018 at 5:17 PM, Andrew Cooper
<andrew.cooper3@xxxxxxxxxx> wrote:
> On 21/05/18 16:48, George Dunlap wrote:
>> On Fri, May 18, 2018 at 5:19 PM, Marek Marczykowski
>> <marmarek@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>>> On Fri, May 18, 2018 at 09:54:37AM -0600, Jan Beulich wrote:
>>>>>>> On 18.05.18 at 17:33, <marmarek@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>>>>> Yes, I'm happy to help with that. As I've said, the basic test is very
>>>>> simple (rtcwake command) and already very useful. The fact that it is(?)
>>>>> broken on staging doesn't make it easier,
>>>> Details on the breakage would be appreciated (on a separate thread),
>>>> unless you plan to address it yourself. I recall Simon(?) mentioning this 
>>>> as
>>>> well, but also not providing sufficient data to consider looking into it
>>>> (perhaps simply because it wasn't easy to obtain useful data, as
>>>> frequently is the case with S3 resume). I think it would be nice if we 
>>>> could
>>>> release 4.11 without a regression here.
>>> I only know that Simon have tested it and it fails. Cc'ing him.
>> Well I tried it with a post-RC 4.11 and got the below.  I haven't done
>> any investigation.
>>
>>  -George
>>
>> <snip>
>> (XEN) CPU3: Intel(R) Xeon(R) CPU           E5630  @ 2.53GHz stepping 02
>> (XEN) *** DOUBLE FAULT ***
>> (XEN) ----[ Xen-4.11-rc  x86_64  debug=y   Not tainted ]----
>> (XEN) CPU:    0
>> (XEN) RIP:    e008:[<ffff82d080377944>] handle_exception+0x9c/0xf7
>
> Do you have xen-syms from this build?  That looks like its in the middle
> of the Spectre alternative, but isn't the wrmsr instruction itself.

Hmm, sorry, I've trashed it -- I was really trying to test my
"acpi_sleep=s3_fake" test.

I've never tried suspend on this particular box, so I'm not sure it
works generally.  Let me get a reasonable baseline first.

 -George

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