On Mon, Mar 10, 2014 at 05:46:06PM +0200, Konstantin Belousov wrote: > On Sun, Mar 09, 2014 at 02:16:57PM -0400, Glen Barber wrote: > > panic: vm_fault: fault on nofault entry, addr: fffffe03becbc000 > > I see, this panic is for access to the kernel map, not for the direct map. > I think that this is a race with other CPU unmapping some page in the > kernel map, which cannot be solved by access checks. > > Please try the following. I booted with the patch and checked that > kgdb /boot/kernel/kernel /dev/mem works, but did not tried to reproduce > the issue. >
Thank you for looking into this. I will report back. Glen
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