uvm_fault(fffffd806ee0a2e8,c001edc000,0,2) at uvm_fault+0x154 sys/uvm/uvm_fault.c:609 upageflttrap(ffff8000267cf190,c001edc808) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 usertrap(ffff8000267cf190) at usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc0022ad8b8, count: -13 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd8066de10a0,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(fffffd8066de10a0,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter(fffffd8066de1090,81) at rw_enter+0xd1 sys/kern/kern_rwlock.c:250 rrw_enter(fffffd8066de1090,81) at rrw_enter+0x8b sys/kern/kern_rwlock.c:465 VOP_LOCK(fffffd8067d1bb48,81) at VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 vn_lock(fffffd8067d1bb48,81) at vn_lock+0x84 sys/kern/vfs_vnops.c:564 uvn_io(fffffd8067d89140,ffff80002e4d6f60,1,23,1) at uvn_io+0x31a sys/uvm/uvm_vnode.c:1263 uvn_put(fffffd8067d89140,ffff80002e4d6f60,1,23) at uvn_put+0xd0 sys/uvm/uvm_vnode.c:926 uvm_pager_put(fffffd8067d89140,fffffd800723cf60,ffff80002e4d6ff8,ffff80002e4d7038,23,0,dde59f2877990d2) at uvm_pager_put+0x137 sys/uvm/uvm_pager.c:545 uvn_flush(fffffd8067d89140,0,1000,3) at uvn_flush+0x532 sys/uvm/uvm_vnode.c:725 uvm_map_clean(fffffd807effc730,20000000,20001000,3) at uvm_map_clean+0x71b sys/uvm/uvm_map.c:4660 syscall(ffff80002e4d7230) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4d7230) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x612836a8a10, count: -13