I am compiling a Linux numerical model (SMOKE emissions processor)
on Mac
OS X 10.5.3 (Leopard) with 64-bit memory. The "smkinven" executable
runs
well for most source inventories, but when I read in mobile sources,
I get
the following errors:
Successful OPEN for inventory file...forrtl: severe (174): SIGSEGV,
segmentation fault occurred, smkinven(15503) malloc: *** error for
object
0x100400210: Non-aligned pointer being freed (2), set a breakpoint in
malloc_error_break to debug, smkinven(15503)....
I have already increased stack size by compiling using the flag
-Wl,-stack_addr,0xF10000000 -Wl,-stack_size,0x64000000. Reading in
the
inventory is the step with the largest Data Activity according to the
activity monitor.
What do I look at to fix "non-aligned pointer being freed"? There are
plenty of Google hits on this error message but nothing helpful. Any
suggestions would be appreciated. Thanks!
Most likely, it means you freed something you never malloced, that is,
an uninitialized variable. And, more helpfully, it's probably located
either on the stack or in a malloced struct.
I suggest you do as it tells you, run the program in gdb and set a
break at malloc_error_break. That should let you figure out what
variable is being freed.
HTH,
--
Pelle Johansson
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