[Bug 272951] kernel 05:26 UTC 04-Aug fails to boot with page alignment error

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272951

            Bug ID: 272951
           Summary: kernel 05:26 UTC 04-Aug fails to boot with page
                    alignment error
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: rkoberman@gmail.com

Kernel from sources pulled at 05:26 UTC fails to boot:
VT-x: PAT,HLT, MTF, PAUSE, EPT, UG, VPID, VID, Post Intr
TSC: P-state invariant, performance statistics real memory = 25769883776 (24576
MB)
panic: vm_phys_enq_range: page 0xfffffe00285c8a58 and npages 8 are misaligned
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffffff822abbał
vpanic() at vpanic+0x149/frame 0xffffffff822abbf0 panic() at panic+0x43/frame
0xffffffff822abc50
vm_phys_enq_range() at vm_phys_eng_range+0x12d/frame 0xffffffff822abc60
vm_phys_alloc_contig() at vm_phys_alloc_contig+8x557/frame 0xffffffff822abcf8
vm_page_find_contig_domain() at vm_page_find_contig_domain+0xbe/frame
0xffffffff822abd68 vm_page_alloc_contig_domain() at
vm_page_alloc_contig_domain+0x135/frame 0xffffffff822abdf8
kmem_alloc_contig_pages() at kmem_alloc_contig_pages+8x92/frame
0xffffffff822abe88 kmem_alloc_attr_domainset() at
kmem_alloc_attr_domainset+0x20d/frame Bxffffffff822abf48
vm_ksubmap_init() at vm_ksubmap_init+0x65/frame 0xffffffff822abf80
cpu_startup() at cpu_startup+0x28b/frame Bxffffffff822abfa8 mi_startup() at
mi_startup+8x1f1/frame 0xffffffff822abff8
btext() at btext+0x23 KDB: enter: panic
[ thread pid 8 tid 0 ]
Stopped at kdb_enter+0x32: movq $0,0xdec6e3(%rip
db>

Could I have stepped into the MAXCPU change?

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