panic: kernel diagnostic assertion "(i * BITMAP_SIZE) < pp->pr_itemsperpage" failed: file "sys/kern/subr_pool.c", line 408

[coypu%sdf.org@localhost]

For those keeping track at home, running -current as of Feb 9 2020.
(Lightly patched, but not ffs/namei)

panic: kernel diagnostic assertion "(i * BITMAP_SIZE) < pp->pr_itemsperpage" failed: file "sys/kern/subr_pool.c", line 408
cpu10: Begin traceback...
vpanic() at netbsd:vpanic+0x178
kern_assert() at netbsd:kern_assert+0x48
pool_get() at netbsd:pool_get+0x4b8
allocbuf() at netbsd:allocbuf+0xe4
getblk() at netbsd:getblk+0x143
bio_doread() at netbsd:bio_doread+0x1d
bread() at netbsd:bread+0x18
ffs_init_vnode() at netbsd:ffs_init_vnode+0x9d
ffs_loadvnode() at netbsd:ffs_loadvnode+0x53
vcache_get() at netbsd:vcache_get+0x21a
ufs_lookup() at netbsd:ufs_lookup+0x9dc
VOP_LOOKUP() at netbsd:VOP_LOOKUP+0x4f
lookup_once() at netbsd:lookup_once+0x266
namei_tryemulroot() at netbsd:namei_tryemulroot+0x2b9
namei() at netbsd:namei+0x29
vn_open() at netbsd:vn_open+0x9a
do_open() at netbsd:do_open+0x113
do_sys_openat() at netbsd:do_sys_openat+0x72
sys_open() at netbsd:sys_open+0x24
syscall() at netbsd:syscall+0x299
--- syscall (number 5) ---
73fc44a42c3a:
cpu10: End traceback...