[phobos] [D-runtime] Possible critical deadlock issue for 2.049

[Sean Kelly]

Until now I've had unit testing of thread-related code be pretty light because most of the failure cases are hangs.  As standalone tests though, this seems a lot more reasonable.

On Sep 20, 2010, at 2:08 PM, Brad Roberts wrote:

> Not so much.  Good point. :)  Though a test that has an alarm in it and 
> self-kills if it doesn't finish in some controlled amount of time isn't 
> that hard to do.  I'll add to my todo list something to detect this sort 
> of problem at a high level in the tester as well.
> 
> On Mon, 20 Sep 2010, Steve Schveighoffer wrote:
> 
>> Date: Mon, 20 Sep 2010 13:10:53 -0700 (PDT)
>> From: Steve Schveighoffer <schveiguy at yahoo.com>
>> Reply-To: Discuss the phobos library for D <phobos at puremagic.com>
>> To: Discuss the phobos library for D <phobos at puremagic.com>
>> Subject: Re: [phobos] [D-runtime] Possible critical deadlock issue for 2.049
>> 
>> Will the autotester detect a deadlock?
>> 
>> I'm not sure this is a good idea...
>> 
>> -Steve
>> 
>> 
>> 
>> ----- Original Message ----
>>> From: Brad Roberts <braddr at puremagic.com>
>>> To: D's runtime library developers list <d-runtime at puremagic.com>
>>> Cc: Phobos <phobos at puremagic.com>
>>> Sent: Mon, September 20, 2010 4:06:55 PM
>>> Subject: Re: [phobos] [D-runtime] Possible critical deadlock issue for 2.049
>>> 
>>> On Mon, 20 Sep 2010, Sean Kelly wrote:
>>> 
>>> You can check in a unit test that  triggers the bug and watch the auto 
>>> tester.
>>> 
>>> Not ideal, but  functional.
>>> 
>>> If it still needs testing when I get home tonight, I'll give  it a shot 
>>> (it'll be 6-8 hours from now though).
>>> 
>>>> Okay, I've made  a bunch of changes to how thread initialization and 
>>>> termination is  done.  Tested to work on OSX with the deadlock case, but 
>>>> I think  only Linux was deadlocking anyway.  I don't have my Linux or 
>>>> Windows VMs handy, so if someone could verify that threads still work on 
>>>> Windows (via the sample in the ticket below) that would be  fantastic.  
>>>> I'm building a new Linux VM on this machine to test  there.
>>>> 
>>>> On Sep 20, 2010, at 7:57 AM, Steve Schveighoffer  wrote:
>>>> 
>>>>> Have people seen these?
>>>>> 
>>>>> 
>>> http://www.digitalmars.com/webnews/newsgroups.php?art_group=digitalmars.D&article_id=117650
>>> 
>>>>> 
>>>>> http://d.puremagic.com/issues/show_bug.cgi?id=4890
>>>>> 
>>>>> This might need an emergency release... seems like a really  bad one.
>>>>> 
>>>>> -Steve
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> _______________________________________________
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>>>>> D-runtime at puremagic.com
>>>>> http://lists.puremagic.com/mailman/listinfo/d-runtime
>>>> 
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>> 
>> 
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