panic: mtx 0xffffffff839b7190: locking against myself
Starting stack trace...
panic(ffffffff833dde30) at panic+0x1d0 sys/kern/subr_prf.c:229
mtx_enter_try(ffffffff839b7190) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271
mtx_enter(ffffffff839b7190) at mtx_enter+0x60 sys/kern/kern_lock.c:239
uvm_pageclean(fffffd8008148070) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline]
uvm_pageclean(fffffd8008148070) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980
uvm_pagefree(fffffd8008148070) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020
uvn_get(fffffd806bb6f6b0,0,ffff80003b0208d8,ffff80003b0208bc,0,2,da8cb946b244f2ee,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118
uvm_fault_lower_io(ffff80003b020af0,ffff80003b020b28,ffff80003b020970,ffff80003b020958) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651
uvm_fault_lower(ffff80003b020af0,ffff80003b020b28,ffff80003b020a70) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418
uvm_fault(fffffd806becb5b8,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80003b020c80,200000000400) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80003b020c80) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x745a39304db0, count: 245
End of stack trace.