On Thu, 2016-06-02 at 01:30 +0200, Stefan Alfredsson wrote: > Package: linux-image-4.5.0-0.bpo.2-amd64 > Version: 4.5.4-1~bpo8+1 > > > I'm booting a small iso image (~50 MB) via memdisk via iPXE, and want to > use the phram module to access the iso filesystem in ram. This results > in the following kernel call trace. I don't think this is a bug. The Kconfig text for this driver says: Use this driver to access physical memory that the kernel proper doesn't have access to, memory beyond the mem=xxx limit, nvram, memory on the video card, etc... The kernel is warning here because it *does* have access to that physical address already. Ben. -- Ben Hutchings Nothing is ever a complete failure; it can always serve as a bad example.
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