[openssl-dev] 90-test_secmem.t hangs the machine for good

Mon May 15 17:19:29 UTC 2017

Yes and yes. :-)

Regards,
Uri

Sent from my iPhone

> On May 15, 2017, at 13:18, Short, Todd <tshort at akamai.com> wrote:
> 
> s/want/wasn’t/ ?
> 
> So, no MLOCK_ONFAULT for you? That’s only included on Linux systems, which makes sense if you’re on a Mac.
> --
> -Todd Short
> // tshort at akamai.com
> // "One if by land, two if by sea, three if by the Internet."
> 
>> On May 15, 2017, at 1:15 PM, Blumenthal, Uri - 0553 - MITLL <uri at ll.mit.edu> wrote:
>> 
>> My disk is SSD, but computer load is pretty high. Which probably explains that recovery doesn't take place in 200-400 seconds...
>> 
>> On a semi-related note, I want able to locate mann.h file either.
>> 
>> Regards,
>> Uri
>> 
>> Sent from my iPhone
>> 
>>> On May 15, 2017, at 13:09, Short, Todd <tshort at akamai.com> wrote:
>>> 
>>> The time of the hang actually seems dependent on the number of applications running and your disk.
>>> 
>>> Since a large amount of memory becomes wired, there is very little available for programs and the OS to use (in some instances I have seen ~4MB non-wired memory). Things slow down due to swapping, etc. 
>>> 
>>> In my testing:
>>> 
>>> With almost no additional programs open, the hang-time is short, ~200 seconds.
>>> With a lot of programs open, the hang-time is increased, ~400 seconds; twice as long. And the number of swapins is 25x and the swapouts is ~34x the original test period.
>>> 
>>> This is on a machine with an SSD (late-2013 MBP)
>>> If you have a spinning HDD, the swapins and swapouts will be significantly more expensive in terms of performance/time.
>>> 
>>> If you quit all your programs, (other than Terminal), I suspect the hang may eventually recover; but if you have a hard disk that time might be quite long.
>>> 
>>> --
>>> -Todd Short
>>> // tshort at akamai.com
>>> // "One if by land, two if by sea, three if by the Internet."
>>> 
>>>> On May 15, 2017, at 11:51 AM, Blumenthal, Uri - 0553 - MITLL <uri at ll.mit.edu> wrote:
>>>> 
>>>> I’m tracking the current OpenSSL master only on El Capitan 10.11.6. I could try it on Sierra 10.12.4, if you really expect it to make a difference.
>>>>  
>>>> In my case the hang is not for a short time. It lasts for more than 10 minutes, so I’m forced to interfere. For how long did it hang for you?
>>>> — 
>>>> Regards,
>>>> Uri
>>>>  
>>>>  
>>>> On 5/15/17, 11:47 AM, "openssl-dev on behalf of Short, Todd via openssl-dev" <openssl-dev-bounces at openssl.org on behalf of openssl-dev at openssl.org> wrote:
>>>>  
>>>> We’ve been able to get some Macs (10.11.6, 8GB and 16GB) to hang for a short period of time with the unit-tests, but it eventually recovers. 
>>>>  
>>>> What MacOS version are you running? I can try 10.12 later today.
>>>> --
>>>> -Todd Short
>>>> // tshort at akamai.com
>>>> // "One if by land, two if by sea, three if by the Internet."
>>>>  
>>>>> On May 12, 2017, at 4:50 PM, Short, Todd via openssl-dev <openssl-dev at openssl.org> wrote:  
>>>>>  
>>>>> Uri: 
>>>>>  
>>>>> Look at https://github.com/openssl/openssl/pull/3455
>>>>>  
>>>>> I limited the test that hung your machine to Linux.
>>>>>  
>>>>> Rich: this removes the OpenSSL_assert() you see.
>>>>>  
>>>>> --
>>>>> -Todd Short
>>>>> // tshort at akamai.com
>>>>> // "One if by land, two if by sea, three if by the Internet."
>>>>>  
>>>>>> On May 12, 2017, at 4:46 PM, Short, Todd via openssl-dev <openssl-dev at openssl.org> wrote:
>>>>>>  
>>>>>> It’s trying to reserve 1<<34 bytes of memory… there goes your 16GB...
>>>>>> --
>>>>>> -Todd Short
>>>>>> // tshort at akamai.com
>>>>>> // "One if by land, two if by sea, three if by the Internet."
>>>>>>  
>>>>>>> On May 12, 2017, at 4:05 PM, Blumenthal, Uri - 0553 - MITLL <uri at ll.mit.edu> wrote:
>>>>>>>  
>>>>>>> Todd> Yes, it’s likely this is due to the amount of memory available in the machine. I tried to use reasonable values, but apparently not reasonable enough
>>>>>>>  
>>>>>>> Yep. In case it matters, my machine has 16GB of RAM (and runs a ton of stuff, besides these tests :).
>>>>>>> -- 
>>>>>>> openssl-dev mailing list
>>>>>>> To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
>>>>>> 
>>>>>>  
>>>>>> -- 
>>>>>> openssl-dev mailing list
>>>>>> To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
>>>>> 
>>>>>  
>>>>> -- 
>>>>> openssl-dev mailing list
>>>>> To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
>>>> 
>>>>  
>>> 
> 
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