uvm_fault(fffffd806999c590,11483175000,0,4) at uvm_fault+0x238
upageflttrap(ffff80002c6d2e90,11483175ae0) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002c6d2e90) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x71368cbf4f50, count: -20
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8279b99d) at panic+0x17b sys/kern/subr_prf.c:198
vop_generic_badop(ffff80002e6f66d8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80573ce8a8,fffffd8065c89488) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065c89488) at bwrite+0x1f1 sys/kern/vfs_bio.c:760
VOP_BWRITE(fffffd8065c89488) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff80002e6f6960) at ufs_mkdir+0x687 sys/ufs/ufs/ufs_vnops.c:1227
VOP_MKDIR(fffffd8059625550,ffff80002e6f6ac0,ffff80002e6f6af0,ffff80002e6f69f0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002a24c560,ffffff9c,20000240,0) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
syscall(ffff80002e6f6c50) at syscall+0x42c sys/arch/amd64/amd64/trap.c:591
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x545b2028610, count: 4
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8279b99d) at panic+0x17b sys/kern/subr_prf.c:198
vop_generic_badop(ffff80002e6f66d8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80573ce8a8,fffffd8065c89488) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065c89488) at bwrite+0x1f1 sys/kern/vfs_bio.c:760
VOP_BWRITE(fffffd8065c89488) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff80002e6f6960) at ufs_mkdir+0x687 sys/ufs/ufs/ufs_vnops.c:1227
VOP_MKDIR(fffffd8059625550,ffff80002e6f6ac0,ffff80002e6f6af0,ffff80002e6f69f0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002a24c560,ffffff9c,20000240,0) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
syscall(ffff80002e6f6c50) at syscall+0x42c sys/arch/amd64/amd64/trap.c:591
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x545b2028610, count: -11