On Mon, 2017-01-23 at 16:44 +0100, Diederik de Haas wrote: > Package: xen-linux-system-4.8.0-2-amd64 > Version: 4.8.15-2 > Severity: normal > > When I boot my system with Xen, I get the following section in dmesg: > > [ 13.588381] ------------[ cut here ]------------ > [ 13.588386] WARNING: CPU: 18 PID: 1 at /build/linux-zDY19G/linux-4.8.15/arch/x86/mm/dump_pagetables.c:225 note_page+0x5e8/0x790 > [ 13.588388] x86/mm: Found insecure W+X mapping at address ffff880000000000/0xffff880000000000 This (virtual) address is equal to PAGE_OFFSET, so this mapping corresponds to the bottom of RAM. [...] > I'll gladly provide more info, just tell me what you need and how to > obtain it. I installed the debug package for the kernel, but that didn't > seem to affect the above stacktrace. The stack trace isn't important for this - the bug is not in a calling function, it's earlier in the initialisation process. Any ideas, Ian? Ben. -- Ben Hutchings Hoare's Law of Large Problems: Inside every large problem is a small problem struggling to get out.
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