Re: [Xen-devel] Latest xen-3.4-testing hangs on boot with iommu=1, on a Lenovo T500

[Tom Rotenberg <tom.rotenberg@xxxxxxxxx>]

No...
and i remember that there was a problem of warm boots, so i did a cold
boot. It's really strange, i have no clew about what can cause it...
I did 'make install' on a clean repository. There is no chance it had
any "left-overs", right?

On Thu, Jul 16, 2009 at 1:00 PM, Keir Fraser<keir.fraser@xxxxxxxxxxxxx> wrote:
> Did you upgrade the BIOS since your last successful test? There have been
> problems which can persist across warm reboots. So did you power cycle
> between tests?
>
>  -- Keir
>
> On 16/07/2009 10:54, "Tom Rotenberg" <tom.rotenberg@xxxxxxxxx> wrote:
>
>> Just bisected the tree, and i found out, that it's not because of Xen,
>> since even 19607 (which worked for me last time) didn't work. I tried
>> to play a little bit with some of the BIOS settings, but it didn't
>> help.
>> It looks like it's some kind of an hardware problem, which causes the
>> whole machine to freeze, when trying to work with the IOMMU. Any
>> suggestions on what to do next? to whom should i send this
>> information?
>>
>> Tom
>>
>> On Thu, Jul 16, 2009 at 11:26 AM, Tom Rotenberg<tom.rotenberg@xxxxxxxxx>
>> wrote:
>>> It didn't help.
>>> I will bisect the tree to find the problem.
>>>
>>> On Wed, Jul 15, 2009 at 8:11 PM, Keir Fraser<keir.fraser@xxxxxxxxxxxxx>
>>> wrote:
>>>> I'd say changesets 19625 and 19632 are most likely suspects. You could try
>>>> reverting those patches, or updating your tree to just before those
>>>> changesets, and see if that helps.
>>>>
>>>>  -- Keir
>>>>
>>>> On 15/07/2009 18:03, "Tom Rotenberg" <tom.rotenberg@xxxxxxxxx> wrote:
>>>>
>>>>> The last version, i have tried and tested (and it worked), was:
>>>>>
>>>>> changeset 19607: 1ac7832a2fcd
>>>>> author: Keir Fraser <keir.fraser@xxxxxxxxxx>
>>>>> date: Mon May 18 13:54:48 2009 +0100
>>>>> files: README
>>>>>
>>>>>
>>>>> On Wed, Jul 15, 2009 at 7:58 PM, Keir Fraser<keir.fraser@xxxxxxxxxxxxx>
>>>>> wrote:
>>>>>> On 15/07/2009 17:01, "Tom Rotenberg" <tom.rotenberg@xxxxxxxxx> wrote:
>>>>>>
>>>>>>> I have cloned the latest xen 3,4 testing tree, changeset 19696:
>>>>>>>         22ef8e900a6d (i386: fix handling of Xen entries in final L2 page
>>>>>>> table), and i have installed it on a Lenovo T500 machine, with VT-d
>>>>>>> enabled.
>>>>>>
>>>>>> When did it last work with the 3.4 tree?
>>>>>>
>>>>>>  -- Keir
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>
>>>>
>>>
>
>
>

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