Re: [B2-devel] SS MacOSX on PPC problem (precise timer patch issue?)

[Ronald P. R. <ron...@xs...>]

The freeze is (I think) much later in the startup process than the  
"normal" crash. I have seen that "normal" crash (after which  
SheepShaver keeps working) only in Tiger on PPC. I have never seen it  
in Leopard on PPC. At the moment I have no Tiger installation on PPC  
to test the current versions.

The freeze that happens on my PowerBook G4 is in Leopard. It does not  
happen with the 2009-07-26 build, it does happen with the 2009-08-23,  
2009-10-04, and 2009-10-18 builds. It does again not happen with the  
2009-10-25 build.

I tried again with the 2009-10-18 build.
The freeze happens immediately after the MacOS welcome screen appears.  
The only line in Console is:

27-10-09 23:47:20 SheepShaver[152] Warning once: This application, or  
a library it uses, is using NSQuickDrawView, which has been  
deprecated. Apps should cease use of QuickDraw and move to Quartz.

If I start the application in Terminal, there is nothing reported there.


Ronald.


Op 25 okt 2009, om 17:22 heeft Michael Schmitt het volgende geschreven:

> Does it freeze before or after the "normal" crash we get when
> SheepShaver starts up on PPC?
>
> That crash is one of the enduring mysteries. The crash dump says one
> of the threads it getting an exception and dying, but which thread?
> And how does it keep working even without that thread?
>
>
> On Oct 25, 2009, at 7:25 AM, Ronald P. Regensburg wrote:
>
>> Those are the builds I compared. Your 2009-07-26 build does not have
>> the problem, your 2009-08-23 build does have the problem.
>>
>> There are now a couple of different reports from this (or at least a
>> very similar) problem on PPC and one on Intel. SheepShaver either
>> quits or freezes, always just after the MacOS welcome screen appears
>> and before one can see extensions loading. Disabling extensions at
>> startup does not help.
>>
>> On my PowerBook G4 it is a freeze. The PB has a fresh and updated
>> Leopard installation with no additional software but the Developer
>> Tools.
>>
>> You have seen the report of this (or a similar) problem an Intel
>> machine in Emaculation.com forum.
>>
>>
>> Ronald.
>>
>>
>> Op 24 okt 2009, om 01:50 heeft Michael Schmitt het volgende
>> geschreven:
>>
>>> Compare the 2009-07-26 build to the 2009-08-23 build, posted here:  
>>> <http://www.emaculation.com/forum/viewtopic.php?p=30713#30713
>>>>
>>>
>>> That build contains the precise timing changes.
>>>
>>> Since I created both builds similarly, it should help isolate the
>>> issue.
>>>
>>> Note that I tested that build on PPC and it worked for me.
>>>
>>>
>>> On Oct 23, 2009, at 4:16 PM, Ronald P. Regensburg wrote:
>>>
>>>> There is a problem with recent builds of SheepShaver MacOSX on PPC
>>>> Macs.
>>>>
>>>> SheepShaver launches normally and the virtual machine begins to
>>>> startup normally. But then SheepShaver freezes at the MacOS welcome
>>>> screen before extensions start loading. The same when trying to
>>>> startup with extensions disabled. The message that extension are
>>>> disabled appears in the welcome screen, but that is as far as it
>>>> gets.
>>>> SheepShaver does not react to anything anymore, it uses more than
>>>> 90%
>>>> of CPU time and the OSX side shows the spinning beachball. There  
>>>> are
>>>> no unusual messages in Console.
>>>>
>>>> The problem must have started with a change in August.
>>>>
>>>> A 2009-07-14 build does not have the problem.
>>>>
>>>> The 2009-07-26 build that Michael Schmitt posted here:
>>>> <http://www.emaculation.com/forum/viewtopic.php?p=30434#30434>
>>>> also does not have the problem. That build already contains the
>>>> memory
>>>> allocation error fix, although that fix was not yet committed to  
>>>> CVS
>>>> then. If the fix was applied as it was used for this build, that
>>>> excludes this fix as the cause of the problem.
>>>>
>>>> A 2009-08-23 build and all later builds have the problem on PPC
>>>> Macs.
>>>> Could the "precise timer" patch be the cause of the problem?
>>>>
>>>> If I know which files are involved with that patch, I can try to
>>>> build
>>>> with earlier versions of those files.
>>>>
>>>> Ronald.
>>>
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