Messages in this thread | | | Date | Fri, 10 May 2002 08:48:09 -0700 (PDT) | Subject | Re: mmap, SIGBUS, and handling it | From | "David S. Miller" <> |
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From: "Dave Gilbert (Home)" <gilbertd@treblig.org> Date: Fri, 10 May 2002 16:56:03 +0100
David S. Miller wrote: > How would you like the kernel to "ignore" a page fault that cannot be > serviced? Well imagining you really wanted to do it you could skip a store instruction or put a dummy value in the register that something is being loaded into.
What is a suitable dummy value? Zero? That would likely lead to a segfault if the value being loaded is supposed to be some pointer.
There is no reasonable behavior other than to kill the process if it has not specified it's own handler. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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