[Bug 277389] Reproduceable low memory freeze on 14.0-RELEASE-p5

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277389

--- Comment #32 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Mark Millard from comment #31)

The console output's backtrace:

panic: pmap_growkernel: no memory to grow kernel
cpuid = 6
time = 1710740968
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x38
vpanic() at vpanic+0x1a4
panic() at panic+0x48
pmap_growkernel() at pmap_growkernel+0x16c
vm_map_insert1() at vm_map_insert1+0x224
vm_map_find() at vm_map_find+0x48c
kva_import() at kva_import+0x54
vmem_try_fetch() at vmem_try_fetch+0xd0
vmem_xalloc() at vmem_xalloc+0x564
kva_import_domain() at kva_import_domain+0x30
vmem_try_fetch() at vmem_try_fetch+0xd0
vmem_xalloc() at vmem_xalloc+0x564
vmem_alloc() at vmem_alloc+0x5c
kmem_malloc_domainset() at kmem_malloc_domainset+0xa0
keg_alloc_slab() at keg_alloc_slab+0xac
zone_import() at zone_import+0xe4
cache_alloc() at cache_alloc+0x32c
cache_alloc_retry() at cache_alloc_retry+0x30
arc_buf_alloc_impl() at arc_buf_alloc_impl+0x1b4
arc_read_done() at arc_read_done+0x218
zio_done() at zio_done+0x814
zio_execute() at zio_execute+0x58
taskqueue_run_locked() at taskqueue_run_locked+0x194
taskqueue_thread_loop() at taskqueue_thread_loop+0x134
fork_exit() at fork_exit+0x8c
fork_trampoline() at fork_trampoline+0x18
KDB: enter: panic

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