panic: mtx 0xffffffff83984a60: locking against myself
Starting stack trace...
panic(ffffffff833cab57) at panic+0x1d0 sys/kern/subr_prf.c:229
mtx_enter_try(ffffffff83984a60) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271
mtx_enter(ffffffff83984a60) at mtx_enter+0x60 sys/kern/kern_lock.c:239
uvm_pageclean(fffffd800850cb40) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980
uvm_pagefree(fffffd800850cb40) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020
uvn_get(fffffd8061214a90,0,ffff80003bcd0b98,ffff80003bcd0b74,0,2,208e34e37c0b62dc,ffff80003bcd0df0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118
uvm_fault_lower_io(ffff80003bcd0db8,ffff80003bcd0df0,ffff80003bcd0c20,ffff80003bcd0c28) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588
uvm_fault_lower(ffff80003bcd0db8,ffff80003bcd0df0,ffff80003bcd0d30) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362
uvm_fault(fffffd806ba0ead8,400000000000,0,2) at uvm_fault+0x272
upageflttrap(ffff80003bcd0f40,400000000c00) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80003bcd0f40) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x745ec5e9e7a0, count: 245
End of stack trace.