SqueakSource is down again

Adrian Lienhard adi at netstyle.ch
Sun Dec 23 11:35:11 UTC 2007


Most of those issues are not bugs of the VM but of code in the image.
Adrian

On Dec 23, 2007, at 12:14 , Philippe Marschall wrote:

> 2007/12/23, Andreas Raab <andreas.raab at gmx.de>:
>> Philippe Marschall wrote:
>>> 2007/12/22, Rob Withers <reefedjib at yahoo.com>:
>>>> This seems to be happening a lot.  Is there something that can be  
>>>> done to
>>>> alleviate the problem?
>>>
>>> Yeah, fix the VM.
>>
>> What do you think is broken to cause those problems?
>
> Basically the stuff that made you choose Gemstone over Squeak.
> Semaphores for example (ok, not actually VW per se), other usual
> suspects are the scheduler, Sockets and the GC. See the stack trace
> Lukas sent earlier. Also it's not uncommon to have hundres of
> processes hanging on the same Semaphore >> #critical:. The block has
> terminated but the semaphore doesn't get released. I mean it's not
> that we do something fancy like terminating a process. And sometimes
> the image simply freezes and would stop reacting. An easy way to make
> use of the second CPU sure wouldn't hurt as well.
>
> Honestly I'm sick of searching which exact combination of what patches
> I have to apply to which image and which GC tweaking I have to apply
> to which VM with which patches collected from some posts or forks. Is
> it asked to much that this stuff simply works?
>
> Cheers
> Philippe
>




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