14.0 boot failure

From: Kevin Oberman <rkoberman_at_gmail.com>
Date: Fri, 04 Aug 2023 23:45:48 UTC 
A new kernel built from sources pulled today (4-Aug) at 5:26 UTC fails to
boot.

This is the output of the boot attempt:
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
0xffffffff822abbaĊ‚

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>

Any ideas?  Pior working kernel (which I'm now running) is
n263931-5aee3e14d491. Died too early in the boot for a dump.