Thanks for the report, it's been addressed and if you have a priority
support plan you can request a hotfix using reference #179337.

In the meantime you can work around the issue by setting your bin sizes as
such:
MALLOC_BAND_CONFIG_STR="8:16,32,0:24,32,0:32,32,0:48,24,0:64,24,0:80,24,0:9
6,16,0:128,8,0"

And exporting that environment variable or setting the same parameters via
mallopt().


--
Adam Mallory (amallory@qnx.com)





On 12-07-14 5:59 AM, "bogdan celer" <community-noreply@qnx.com> wrote:

>In QNX6. 5.0SP1 appears mistake in posix_memalign.
>Test program 
># cat Test.c
>#include <stdlib.h>
>int main(int argc, char **argv)
>{
>        void *ptr = 0;
>        posix_memalign(&ptr, 16, 16 - 2 * sizeof (void*));
>        posix_memalign(&ptr, 32, 32 - 2 * sizeof (void*));
>        posix_memalign(&ptr, 64, 64 - 2 * sizeof (void*));
>        posix_memalign(&ptr, 128, 128 - 2 * sizeof (void*));
>        return (0);
>}
># gcc -g -o Test Test.c
>
>After starting - ./Test  the program is standing in the STATE = RUNNIG
>state.
>This state is caused by:
>posix_memalign(&ptr, 128, 128 - 2 * sizeof (void*));
># gdb Test
>GNU gdb 6.8 qnx-nto (rev. 506)
>Copyright (C) 2008 Free Software Foundation, Inc.
>License GPLv3+: GNU GPL version 3 or later
><http://gnu.org/licenses/gpl.html>;
>This is free software: you are free to change and redistribute it.
>There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>and "show warranty" for details.
>This GDB was configured as "i486-pc-nto-qnx6.5.0"...
>(gdb) start
>Temporary breakpoint 1 at 0x8048699: file Test.c, line 4.
>Starting program: /root/Test0
>[New pid 2007084 tid 1]
>
>Temporary breakpoint 1, main (argc=1, argv=0x8047a04) at Test.c:4
>4               void *ptr = 0;
>(gdb) n
>5               posix_memalign(&ptr, 16, 16 - 2 * sizeof (void*));
>(gdb)
>6               posix_memalign(&ptr, 32, 32 - 2 * sizeof (void*));
>(gdb)
>7               posix_memalign(&ptr, 64, 64 - 2 * sizeof (void*));
>(gdb)
>8               posix_memalign(&ptr, 128, 128 - 2 * sizeof (void*));
>(gdb)     <= and  the program is standing in this place in the RUNNIG
>state 
>              <=  After the interrupt  - Ctrl C
>Program received signal SIGINT, Interrupt.
>0xb032799f in _band_get_aligned () from
>/usr/qnx650/target/qnx6/x86/lib/libc.so.3
>(gdb) q
>The program is running.  Exit anyway? (y or n) y
># 
>
>I think that the problem lies in the function _band_get_aligned  from
>libc.
>
>
> 
>
>
>
>_______________________________________________
>
>OSTech
>http://community.qnx.com/sf/go/post94257
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