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List:       freebsd-hackers
Subject:    Re: Allocation/free history
From:       suresh gumpula <gsuryacse7k () gmail ! com>
Date:       2014-07-31 2:42:50
Message-ID: CAJOqHmjNk8oW0wrPVjQ3nNjzdRF1mpkpWaVkvei4aOjWdF5i=w () mail ! gmail ! com
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Its NETAPP :-)


On Wed, Jul 30, 2014 at 10:16 PM, Julian Elischer <julian@freebsd.org>
wrote:

>  On 7/31/14, 12:05 AM, suresh gumpula wrote:
>
>  Hi Julian,
> Its our proprietary OS called Simple kernel  and yes its in the kernel
> space allocator.
>
>
> who is "our"?
>  :-)
>
>
>
>  Thanks
> Suresh
>
>
>  On Wed, Jul 30, 2014 at 10:04 AM, Julian Elischer <julian@freebsd.org>
> wrote:
>
>> On 7/29/14, 1:40 AM, suresh gumpula wrote:
>>
>>> Hi,
>>>     Knowing the PC of an allocation is very usefull in debugging. Having
>>> the
>>> PC hash table and storing the pc hash  either with an object itself( at
>>> the
>>> end) or allocate an exra structure to hold the
>>> hash index  help us find out who/where an object was allocated.   We
>>> already have something like this in our own operating system and has
>>> been a
>>> useful thing in debugging.
>>>
>>
>>  what OS is that?
>>
>> I assume you are talking about in the kernel?
>>
>>
>
>
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