Messages in this thread | | | Date | Mon, 28 Jan 2002 17:26:20 -0500 | From | Daniel Jacobowitz <> | Subject | Re: [PATCH?] Crash in 2.4.17/ptrace |
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On Mon, Jan 28, 2002 at 10:05:31PM +0000, Alan Cox wrote: > > For framebuffers addresses, there is no page structure, and then the > > page reference count updates read/write to random memory. > > If it is a physical pci bus object why do we need to refcount it, surely > "no page" is ok. Its just up to the driver not to do anything stupid and > the core code to honour the pci/pci transfer quirks (or when faced with > a hard one just say "no")
So, is there a clear interface by which access_process_vm ought to be able to get at the mapped framebuffer, or should get_user_pages just punt off it?
-- Daniel Jacobowitz Carnegie Mellon University MontaVista Software Debian GNU/Linux Developer - 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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