Bug#638753: libhdf5-serial-1.8.7: threadsafe memory leaks

[Gilles Filippini]

Control: tags -1 + moreinfo

Hi,

On Sun, 21 Aug 2011 17:35:26 +0200 Jerome BENOIT 
wrote:
> Package: libhdf5-serial-1.8.7
> Severity: wishlist
> 
> Hello:
> 
> Since a while I have noticed via valgrind some memory leaks let by the 
> function `H5Zfilter_avail':
> the following Code reproduce the issue:
> 
> --8><---
> // gcc -o test_H5Zfilter_avail test_H5Zfilter_avail.c -lhdf5
> // valgrind --leak-check=yes --leak-check=full --show-reachable=yes 
> ./test_H5Zfilter_avail
> //
> 
> #include 
> #include 
> 
> // http://wiki.hdfgroup.org
> #ifndef H5Z_BZIP2
> #define H5Z_BZIP2 307
> #endif
> 
> int main(int nargs, char *args[]) {
> 
>   fprintf(stderr,
>   "filter with identifier `%d' is %s registered\n",
>   H5Z_BZIP2,
>   (H5Zfilter_avail(H5Z_BZIP2))?"already":"not"
>   );
> 
>   return (0); }
> --><8-
> 
> A closer look shows that the memory leakes are let by the threadsafe 
> machinery.

When trying to reproduce this bug I only get 'still reachable' class
memory leaks, with the very same small memory footprint no matter how
many times H5Zfilter_avail was called. Is that what you experienced?
I tend to consider 'still reachable' memory leaks not leaks. Especially
when there're stable.

Thanks,

_g.



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Bug#638753: libhdf5-serial-1.8.7: threadsafe memory leaks

[Sylvestre Ledru]

forwarded 638753 https://jira.hdfgroup.uiuc.edu/browse/HELPDSK-121
thanks


Le dimanche 21 août 2011 à 17:35 +0200, Jerome BENOIT a écrit :
 Since a while I have noticed via valgrind some memory leaks let by the 
 function `H5Zfilter_avail':
Forwarded to upstream even if the issue tracker seems to be private.

Sylvestre





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Processed: Re: Bug#638753: libhdf5-serial-1.8.7: threadsafe memory leaks

[Debian Bug Tracking System]

Processing commands for cont...@bugs.debian.org:

 forwarded 638753 https://jira.hdfgroup.uiuc.edu/browse/HELPDSK-121
Bug #638753 [libhdf5-serial-1.8.7] libhdf5-serial-1.8.7: threadsafe memory leaks
Set Bug forwarded-to-address to 
'https://jira.hdfgroup.uiuc.edu/browse/HELPDSK-121'.
 thanks
Stopping processing here.

Please contact me if you need assistance.
-- 
638753: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=638753
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems

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Bug#638753: libhdf5-serial-1.8.7: threadsafe memory leaks

[Jerome BENOIT]

Package: libhdf5-serial-1.8.7
Severity: wishlist

Hello:

Since a while I have noticed via valgrind some memory leaks let by the function 
`H5Zfilter_avail':
the following Code reproduce the issue:

--8---
// gcc -o test_H5Zfilter_avail test_H5Zfilter_avail.c -lhdf5
// valgrind --leak-check=yes --leak-check=full --show-reachable=yes 
./test_H5Zfilter_avail
//

#include stdio.h
#include hdf5.h

// http://wiki.hdfgroup.org
#ifndef H5Z_BZIP2
#define H5Z_BZIP2 307
#endif

int main(int nargs, char *args[]) {

fprintf(stderr,
filter with identifier `%d' is %s registered\n,
H5Z_BZIP2,
(H5Zfilter_avail(H5Z_BZIP2))?already:not
);

return (0); }
--8-

A closer look shows that the memory leakes are let by the threadsafe machinery.

hth,
Jerome



-- System Information:
Debian Release: Wheezy*
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