Panic: cache_vop_rename: lingering negative entry

Hi,

I am consistently getting the panic below while building lang/perl5.42. This is the command from the perl build that triggers the panic:

/usr/bin/strip /ports-work/usr/ports/lang/perl5.42/work/stage/usr/local/bin/perl5.42.0

CURRENT on aarch64, with a kernel from last week, also with a later one from the  weekend. A kernel from mid-January worked fine.

I can reproduce on demand, no parallelism in the build required.

Does this look familiar to anyone?

panic: cache_vop_rename: lingering negative entry
cpuid = 4
time = 1775410763
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x38
vpanic() at vpanic+0x1a0
panic() at panic+0x48
cache_vop_rename() at cache_vop_rename+0xb0
zfs_do_rename() at zfs_do_rename+0xafc
zfs_freebsd_rename() at zfs_freebsd_rename+0x5c
VOP_RENAME_APV() at VOP_RENAME_APV+0x44
kern_renameat () at kern_renameat+0x574
do_el0_sync() at do_el0_sync+0x5f8
handle_el0_sync() at handle_el0_sync+0x4c
--- exception, esr 0x56000000
KDB: enter: panic
[ thread pid 81230 tid 101738 ]
Stopped at kdb_enter+0x48: str xzr, [x19, #3072]

Regards,

Jan M.