panic: Assertion pcb->pcb_fpusaved == NULL failed at /usr/src/sys/arm64/arm64/vfp.c:209

Hi,

I had a hang hard-er hang when loading a LinuxKPI based wireless driver for a
card probably in D3 state.  Probing as running through three times (but there's
a lot more PCIe cards ther, I didn't say the card being detectede).

^T would not work at this point.

I could break into the debugger thoug, did so and typed cont waiting a bit longer
and upon trying to get into debugger again this happened:

KDB: enter: Break to debugger
timeout stopping cpus
[ thread pid 9 tid 100240 ]
Stopped at      kdb_alt_break_internal+0x180:   str     xzr, [x19, #1408]
db> timeout stopping cpus
panic: Assertion pcb->pcb_fpusaved == NULL failed at /usr/src/sys/arm64/arm64/vfp.c:209
cpuid = 0
time = 1712167778
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
vfp_save_state_savectx() at vfp_save_state_savectx+0x48
savectx() at savectx+0x38
arm_gic_v3_intr() at arm_gic_v3_intr+0xe4
intr_irq_handler() at intr_irq_handler+0x88
handle_el1h_irq() at handle_el1h_irq+0x14
--- interrupt
lock_delay() at lock_delay+0x18
__mtx_lock_sleep() at __mtx_lock_sleep+0xdc
__mtx_lock_flags() at __mtx_lock_flags+0x138
softclock_call_cc() at softclock_call_cc+0xd0
softclock_thread() at softclock_thread+0xb8
fork_exit() at fork_exit+0x78
fork_trampoline() at fork_trampoline+0x18
Uptime: 16m57s
Automatic reboot in 15 seconds - press a key on the console to abort




-- 
Bjoern A. Zeeb                                                     r15:7