Kernel page fault with the following non-sleepable locks held:
exclusive sleep mutex so_rcv (so_rcv) r = 0 (0xffff000058d35220) locked @ /usr/src/sys/kern/uipc_usrreq.c:1060
exclusive sleep mutex unp (unp) r = 0 (0xffffa00054723b00) locked @ /usr/src/sys/kern/uipc_usrreq.c:392
exclusive sleep mutex unp (unp) r = 0 (0xffffa0005bf0f600) locked @ /usr/src/sys/kern/uipc_usrreq.c:1036
ugen0.2: <Generic 4-Port USB 3.0 Hub> at usbus0
  x0: ffffa0000540fa18uhub5
 numa-domain 0  x1:                0 on uhub0

  x2: ffff00000089a441uhub5: <Interrupt In Interface> on usbus0
 (do_execve.fexecv_proc_title + 2400d)
  x3:              f3b
  x4: ffffa00f7cd8c500
  x5:               4a
  x6:                1
  x7:                1
  x8:                0
  x9:                4
 x10: ffff00000075f070 (handle_el1h_sync + 70)
 x11:         404002c5
 x12:         96000006
 x13:                4
 x14:            10000
 x15:                1
 x16:            10000
 x17:                c
 x18: ffff0001bdaca030
 x19:              f3b
 x20: ffff00000089a441 (do_execve.fexecv_proc_title + 2400d)
 x21: ffffa0000540fa00
 x22:                0
 x23: ffffa0000540fa18
 x24: ffffa0000540f900
 x25: ffff00000089a441 (do_execve.fexecv_proc_title + 2400d)
 x26:                1
 x27:               e9
 x28: ffffa008325f4fd8
 x29: ffff0001bdacb270
  sp: ffff0001bdaca030
  lr: ffff000000714f58 (keg_fetch_free_slab + 50)
 elr: ffff00000075f010 (handle_el1h_sync + 10)
spsr:         404003c5
 far: ffff0001bdaca130
 esr:         96000047
panic: data abort in critical section or under mutex
cpuid = 117
time = 1636670768
KDB: stack backtrace:
db_trace_self() at db_trace_self
KDB: enter: panic
[ thread pid 485 tid 101706 ]
Stopped at      kdb_enter+0x44: undefined       f901411f
db>