> But soon afterwards, as soon as I got a little lower on memory, the kernel
> started to deny requests for memory allocations - or at least so it seemed.
.
.
.
After a short experiment, the signal 7 (SIGBUS) is caused due to the kernel
failing to handle a page fault (which, I assume, is rather obvious to you).
This is as deep as I can go into the sources at the moment - I have no
previous understanding of the mm subsystem, and no time to learn it.
Nimrod
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