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Re: kern/46481: page fault in uvmspace_free -> uvm_unmap_remove -> pmap_remove -> pmap_pdes_invalid
I also see this problem quite easily, with both 6.0_BETA2 and -current.
it was introduced by this change:
(support for 256 CPUs on amd64)
with that change reverted, this problem no longer occurs,
nor do other problems that I've seen on native amd64.
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