I'm occasionally getting an error, when running a compiled program, I get:

| fatal error: GetMBlock: misaligned block 0x401fe000 returned when | allocating 1 megablock(s) at 0xbff00000

apparently, this only happens on one computer (Red Hat 7.1), and not others (Red Hat 7.2), which leads me to suspect it's a library issue.

This is a known problem, yes? Is it possible to resolve this, apart from upgrading the OS, or recompiling?

It looks like your program is using a *lot* of memory, because the requested address is right near the top of the address space, and is probably running into the stack, hence the failure. Is that the case? I'm looking into fixing one problem that results in the getMBlock failure, but I don't think it'll help much in your case. Cheers, Simon