I'm running an image-processing program on OS X 10.5.4 on Intel
(Core 2
Duo), Java 5, 32-bit client JVM, with lots of RAM, and am getting a
bus
error from Java. Here's the end of a log file that shows -verbose:gc
along with the stack trace:
[snip]
java(69146,0xb0801000) malloc: *** mmap(size=33660928) failed (error
code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
Invalid memory access of location 00000018 eip=6a5655a2
I've run this under gdb, but there are no symbols in the Apple Java,
so
the trace is pretty much uninformative. I'm looking for tips and
tricks
for finding out what's causing this. I'm running with -Xmx1500m, as
well.
Malloc's debugging printfs are helpful here.
- The malloc implementation tried to mmap a ~32 megabyte block of
MAP_ANON|MAP_PRIVATE pages.
- This failed with ENOMEM (error code=12), and malloc returned NULL.
- Most likely, Java (or a library it uses) attempted to dereference
the returned NULL pointer (address 0x18) and crashed.
From the mmap man page:
[ENOMEM] MAP_FIXED is specified and the address range
specified exceeds the address space limit for the process.
[ENOMEM] MAP_FIXED is specified and the address
specified by the addr parameter isn't available.
[ENOMEM] MAP_ANON is specified and insufficient memory
is available.
-landonf
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