On Jan 4, 2010, at 4:55 AM, Francesco RUNDO <francesco.ru...@st.com>  
wrote:

> Hi All,
>
> I'm running LTP (I'm using ltp-full-20090731....but asap I will  
> upgrade to latest)  on SH based platforms.
> Now, during a test-session. I've noted that the test "mtest01"  
> reduced drastically the system memory and after its execution this  
> memory wasn't de-allocated.
>
> I've analysed the mtest01.c code and I've noted that no "free()"  
> istruction was associated to the related malloc:
>
> ......
> if((mem = (char*)malloc(chunksize)) == NULL) {
> ......
>
> I've simply added a "free(mem)" of the allocated memory and the  
> issue was addressed successfully.
>
> I've attached the trivial patch I've developed.
>
> Best Regards,
> --
> Francesco
> Added missed "free" istruction to release memory previosuly allocated.
> Signed-off-by: Francesco Rundo <francesco.ru...@st.com>
> --- ltp-full-20090731/testcases/kernel/mem/mtest01/ 
> mtest01.c.origin    2009-02-26 13:02:27.000000000 +0100
> +++ ltp-full-20090731/testcases/kernel/mem/mtest01/mtest01.c     
> 2009-12-15 14:03:28.779240000 +0100
> @@ -258,5 +258,8 @@
>     else
>       tst_resm(TPASS, "%llu kbytes allocated only.",  
> original_maxbytes/1024);
>   }
> +
> +  free(mem);
> +
>   exit(0);
> }

1. Does the version off cvs still have this issue?
2. Unless the test exits the code block immediately, I'd definitely do:

if (mem)
     free (mem);

to avoid making a bad free call.

Thanks,
-Garrett

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