panic: mtx 0xffffffff839c4b98: locking against myself
Starting stack trace...
panic(ffffffff833ee7ea) at panic+0x1d0 sys/kern/subr_prf.c:229
mtx_enter_try(ffffffff839c4b98) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300
mtx_enter(ffffffff839c4b98) at mtx_enter+0x62 sys/kern/kern_lock.c:261
uvm_pageclean(fffffd80092105d0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline]
uvm_pageclean(fffffd80092105d0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980
uvm_pagefree(fffffd80092105d0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020
uvn_get(fffffd8070d563f8,0,ffff8000373f4cf8,ffff8000373f4cdc,0,2,596793af783c80c2,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118
uvm_fault_lower_io(ffff8000373f4f10,ffff8000373f4f48,ffff8000373f4d90,ffff8000373f4d78) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652
uvm_fault_lower(ffff8000373f4f10,ffff8000373f4f48,ffff8000373f4e90) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419
uvm_fault(fffffd805da1c3e8,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff8000373f50a0,200000000000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff8000373f50a0) at usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7040a7850bc0, count: 245
End of stack trace.