memory leaks?

[Dmitry Samersoff]

Ramki,

1. What version of 6u?? you tried.

2. We fixed couple of leaks related to JMX

e.g. 7066129 -
GarbageCollectorMXBean#getLastGcInfo leaks native memory

-Dmitry


On 2012-05-26 00:09, Srinivas Ramakrishna wrote:
> Hi Dan -- I don't believe either is being used in this case.
> 
> -- ramki
> 
> On Fri, May 25, 2012 at 12:07 PM, Daniel D. Daugherty
> <daniel.daugherty at oracle.com <mailto:daniel.daugherty at oracle.com>> wrote:
> 
>     Hey Ramki!
> 
>     Do you happen to know if java.lang.instrument, JVM/TI RedefineClasses()
>     or JVM/TI RetransformClasses() is being used by the system?
> 
>     Dan
> 
> 
> 
>     On 5/25/12 12:53 PM, Srinivas Ramakrishna wrote:
> 
> 
>         Just a quick question in case any one might remember off the top
>         of their head...
> 
>         Are there any native memory leaks that may have been fixed in
>         JDK 7 and 8 that haven't yet
>         been backported to JDK 6uXX?
> 
>         No need for any research... just a quick check to see if anyone
>         recalls anything recently that
>         fixed native leaks... i'll go check the hg logs momentarily to
>         see if anything jumps out.
> 
>         I am suspecting some 64 M segments that I see in pmap, and am
>         yet to figure out when and where
>         these are coming from... The leak is abrupt and likely the
>         result of a rather rare/infrequent event.
>         I'll see if I can find a DTrace that works on Linux and log
>         mmap/munmap calls to get more info.
> 
>         thanks for any (even very vague) pointers.
>         -- ramki
> 
> 


-- 
Dmitry Samersoff
Java Hotspot development team, SPB04
* There will come soft rains ...