So I came across this issue when improving mmap() support in the perf_fuzzer.
For AUX buffers, you can specify PROT_WRITE when allocating the buffer using mmap(), and it will return a buffer just fine, but if you actually try to write anything you get an instant SIGBUS. Is this expected behavior? It seems like we should fail the initial allocation if we ask for a writable buffer but it is not writable. Vince -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
