kernel: protection fault trap, code=0 Stopped at bpfdetach+0x70: movq 0(%r15),%r12 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace bpfdetach(ffff800001475800) at bpfdetach+0x70 sys/net/bpf.c:1778 if_detach(ffff800001475800) at if_detach+0x153 sys/net/if.c:1200 tun_clone_destroy(ffff800001475800) at tun_clone_destroy+0x2d6 sys/net/if_tun.c:346 if_clone_destroy(ffff80002a469e10) at if_clone_destroy+0x1d7 sys/net/if.c:1389 ifioctl(ffff8000014f5090,80206979,ffff80002a469e10,ffff80002a3294b0) at ifioctl+0x5c5 sys/net/if.c:-1 sys_ioctl(ffff80002a3294b0,ffff80002a469ff0,ffff80002a469f40) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80002a469ff0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a469ff0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcccb18fa360, count: -8 ddb{0}> show registers rdi 0xffff800033cad000 rsi 0x4e4d9 acpi_pdirpa+0x3a34a rbp 0xffff80002a469c30 rbx 0x80206979 __kernel_virt_to_phys+0x206979 rdx 0xffff800033cad000 rcx 0x4e4d8 acpi_pdirpa+0x3a349 rax 0xffffffff82451a99 bpfdetach+0xb9 r8 0 r9 0 r10 0xcc70bd7eb6f181 r11 0x81c8bbcdf2c81135 r12 0xdeaf0002deafbead r13 0x800 r14 0xffff800001475800 r15 0xdeaf0002deafbead rip 0xffffffff82451a50 bpfdetach+0x70 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a469c00 ss 0x10 bpfdetach+0x70: movq 0(%r15),%r12 ddb{0}> show proc PROC (syz-executor) tid=270228 pid=79909 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000340ba548 scnt=1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000340bacf8,0xffff80002a329c70 process=0xffff80003acd84c0 user=0xffff80002a465000, vmspace=0xfffffd806fdb8ad8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51043 31991 80225 0 2 0 syz-executor 51043 146863 80225 0 2 0x4000000 syz-executor 51043 497519 80225 0 3 0x4000080 fsleep syz-executor 51043 89854 80225 0 3 0x4000080 fsleep syz-executor 74639 86243 51584 0 2 0 syz-executor 74639 519165 51584 0 3 0x4000080 sbwait syz-executor 74639 445425 51584 0 2 0x4000000 syz-executor 39612 136162 29442 0 2 0 syz-executor 39612 259455 29442 0 2 0x4000000 syz-executor 39612 94556 29442 0 3 0x4000080 fsleep syz-executor *79909 270228 7521 0 7 0x4081000 syz-executor 79909 438078 7521 0 3 0x4003000 suspend syz-executor 14033 126442 50667 -1 3 0x90 nanoslp syz-executor 14033 238326 50667 -1 3 0x4000090 lockf syz-executor 14033 516228 50667 -1 3 0x4000090 fsleep syz-executor 98209 188078 0 0 3 0x14200 acct acct 7521 144376 10811 0 3 0x82 nanoslp syz-executor 80225 138222 10811 0 3 0x82 nanoslp syz-executor 73101 140646 0 0 3 0x14200 bored sosplice 50667 411151 10811 0 3 0x82 nanoslp syz-executor 45706 494314 10811 0 7 0x2 syz-executor 62434 337767 10811 0 3 0x82 nanoslp syz-executor 29442 178796 10811 0 3 0x82 nanoslp syz-executor 51584 416649 10811 0 3 0x82 nanoslp syz-executor 55063 275571 10811 0 3 0x82 wait syz-executor 10811 421678 63562 0 3 0x82 kqread syz-executor 63562 222171 32462 0 3 0x10008a sigsusp ksh 32462 18324 31934 0 3 0x98 kqread sshd-session 31934 500873 32782 0 3 0x92 kqread sshd-session 50213 264767 1 0 3 0x100083 ttyin getty 32782 331612 1 0 3 0x88 kqread sshd 19988 278114 90874 74 3 0x1100092 bpf pflogd 90874 24557 1 0 3 0x80 sbwait pflogd 51310 165063 32690 73 3 0x1100090 kqread syslogd 32690 442361 1 0 3 0x100082 sbwait syslogd 35333 502524 1 0 3 0x100080 kqread resolvd 16272 310793 2408 77 3 0x100092 kqread dhcpleased 6010 204030 2408 77 2 0x100092 dhcpleased 2408 447412 1 0 3 0x80 kqread dhcpleased 69687 205072 0 0 3 0x14200 bored smr 10761 200087 0 0 2 0x14200 zerothread 52097 396019 0 0 3 0x14200 aiodoned aiodoned 96586 517344 0 0 3 0x14200 syncer update 87832 272547 0 0 3 0x14200 cleaner cleaner 12776 490655 0 0 3 0x14200 reaper reaper 61061 145914 0 0 3 0x14200 pgdaemon pagedaemon 59012 411107 0 0 3 0x14200 bored viomb 89877 364833 0 0 3 0x40014200 acpi0 acpi0 6133 517837 0 0 3 0x40014200 idle1 82515 191670 0 0 3 0x14200 bored softnet3 74880 239753 0 0 3 0x14200 bored softnet2 90337 493544 0 0 3 0x14200 bored softnet1 12398 17129 0 0 3 0x14200 tqbarend softnet0 68617 476480 0 0 3 0x14200 bored systqmp 79322 430195 0 0 3 0x14200 bored systq 12714 13849 0 0 3 0x14200 tmoslp softclockmp 46964 496467 0 0 3 0x40014200 tmoslp softclock 76325 416912 0 0 3 0x40014200 idle0 1 108068 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 79909 (syz-executor) thread 0xffff80002a3294b0 (270228) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838ece70) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:412 #4 rw_do_enter_write+0x1de sys/kern/kern_rwlock.c:292 #5 bpf_detachd+0x1b5 sys/net/bpf.c:353 #6 bpfclose+0x101 sys/net/bpf.c:425 #7 spec_close+0x45f sys/kern/spec_vnops.c:-1 #8 VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 #9 vclean+0x20f sys/kern/vfs_subr.c:1091 #10 vgonel+0xb0 sys/kern/vfs_subr.c:1193 #11 vop_generic_revoke+0x3e6 sys/kern/vfs_default.c:128 #12 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291 #13 vdevgone+0x17b sys/kern/vfs_subr.c:-1 #14 bpfsdetach+0x140 sys/net/bpf.c:1802 #15 bpfdetach+0xa6 sys/net/bpf.c:-1 #16 if_detach+0x153 sys/net/if.c:1200 #17 tun_clone_destroy+0x2d6 sys/net/if_tun.c:346 #18 if_clone_destroy+0x1d7 sys/net/if.c:1389 exclusive rwlock clonelk r = 0 (0xffffffff83871358) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 if_clone_destroy+0x67 sys/net/if.c:-1 #3 ifioctl+0x5c5 sys/net/if.c:-1 #4 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 45706 (syz-executor) thread 0xffff80002a2f8008 (494314) exclusive rrwlock inode r = 0 (0xfffffd805fa0f0a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3117 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cc81308) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3102 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 12398 (softnet0) thread 0xffff8000ffffe290 (17129) shared rwlock softnet0 r = 0 (0xffff80000002c070) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10214 11165K 11780K 166960K 12605 0 pcb 18 14K 16K 166960K 310 0 rtable 227 11K 12K 166960K 748 0 pf 35 17K 21K 166960K 129 0 ifaddr 42 7K 8K 166960K 93 0 ifgroup 55 2K 2K 166960K 132 0 sysctl 4 1K 1K 166960K 4 0 counters 68 36K 37K 166960K 286 0 ioctlops 0 0K 4K 166960K 1672 0 iov 0 0K 16K 166960K 79 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1521 96K 96K 166960K 2217 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 23 5K 7K 166960K 34 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 853 0 sigio 0 0K 0K 166960K 7 0 proc 73 91K 128K 166960K 694 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 76 0 in_multi 88 6K 7K 166960K 160 0 ether_multi 1 0K 0K 166960K 5 0 mrt 2 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 614 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 253 161K 175K 166960K 9264 0 UVM aobj 27 2K 2K 166960K 29 0 pinsyscall 42 84K 104K 166960K 2060 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 36 0 NDP 14 0K 2K 166960K 63 0 temp 55 8686K 8813K 166960K 28529 0 kqueue 15 24K 30K 166960K 145 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 92 0 89 1 0 1 1 0 8 0 rtentry 168 175 0 80 5 0 5 5 0 8 0 unpcb 144 567 0 543 4 0 4 4 0 8 2 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpcb 808 201 0 196 4 0 4 4 0 8 3 arp 120 28 0 12 1 0 1 1 0 8 0 inpcb 376 985 0 974 14 6 8 9 0 8 6 nd6 136 40 0 15 1 0 1 1 0 8 0 pkpcb 40 12 0 12 3 2 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1168 101 0 98 3 2 1 1 0 8 0 pppxif 1480 5 0 5 2 1 1 1 0 8 1 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 1 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 6 0 4 1 0 1 1 0 8 0 pfanchor 1288 4 0 1 1 0 1 1 0 8 0 pftag 88 5 0 2 1 0 1 1 0 8 0 pfstitem 24 66 0 14 1 0 1 1 0 8 0 pfstkey 128 66 0 14 2 0 2 2 0 8 0 pfstate 376 66 0 14 6 0 6 6 0 8 0 pfrule 1344 31 0 23 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 743 0 311 30 0 30 30 0 8 3 art_table 32 746 0 311 4 0 4 4 0 8 0 art_node 16 173 0 88 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 8 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 26 0 5 1 0 1 1 0 8 0 shmpl 112 26 0 2 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2883 0 1372 95 0 95 95 0 8 0 ffsino 280 2883 0 1372 109 0 109 109 0 8 0 nchpl 144 4025 0 2322 64 0 64 64 0 8 0 rtmask 32 9 0 9 3 2 1 1 0 8 1 uvmvnodes 80 3547 0 0 73 0 73 73 0 8 0 vnodes 216 3547 0 0 198 0 198 198 0 8 0 namei 1024 14154 0 14153 2 1 1 2 0 8 0 percpumem 16 157 0 109 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 76 0 51 2 0 2 2 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 14437 0 14437 11 9 2 8 1 8 2 plimitpl 152 204 0 187 1 0 1 1 0 8 0 sigapl 424 1152 0 1101 7 1 6 7 0 8 0 futexpl 64 10331 0 10327 1 0 1 1 0 8 0 knotepl 120 749 0 0 23 0 23 23 0 8 0 kqueuepl 216 332 0 320 8 6 2 5 0 8 1 pipepl 328 294 0 267 13 5 8 8 0 8 5 fdescpl 504 1131 0 1100 5 0 5 5 0 8 0 filepl 152 7112 0 6809 25 8 17 19 0 8 4 lockfpl 104 426 0 422 2 0 2 2 0 8 1 lockfspl 48 159 0 156 1 0 1 1 0 8 0 sessionpl 144 29 0 20 1 0 1 1 0 8 0 pgrppl 48 49 0 32 1 0 1 1 0 8 0 ucredpl 104 1064 0 1050 1 0 1 1 0 8 0 zombiepl 144 1293 0 1291 2 1 1 1 0 8 0 processpl 1176 1152 0 1101 6 1 5 5 0 8 0 procpl 656 2338 0 2276 7 0 7 7 0 8 0 srpgc 96 10 0 10 2 1 1 1 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 688 1664 0 1626 16 6 10 10 0 8 5 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 30 0 0 1 0 1 1 0 8 0 mbufpl 256 1118 0 0 70 0 70 70 0 8 0 bufpl 280 4673 0 123 325 0 325 325 0 8 0 anonpl 24 182648 0 178579 62 21 41 58 0 184 3 amapchunkpl 152 30899 0 30350 39 10 29 36 0 158 6 amappl16 200 3363 0 3316 24 18 6 15 0 8 3 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 127 0 115 1 0 1 1 0 8 0 amappl13 176 10 0 8 1 0 1 1 0 8 0 amappl12 168 1841 0 1810 3 1 2 2 0 8 0 amappl11 160 51 0 36 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 117 0 105 1 0 1 1 0 8 0 amappl6 120 225 0 221 1 0 1 1 0 8 0 amappl5 112 136 0 126 1 0 1 1 0 8 0 amappl4 104 340 0 319 1 0 1 1 0 8 0 amappl3 96 5919 0 5798 4 0 4 4 0 8 0 amappl2 88 718 0 653 2 0 2 2 0 8 0 amappl1 80 12248 0 11644 15 0 15 15 0 8 0 amappl 88 8347 0 8168 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 28 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1131 0 1100 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1131 0 1100 1 0 1 1 0 8 0 vmmpekpl 168 11287 0 11244 3 0 3 3 0 8 0 vmmpepl 168 77063 0 75020 107 7 100 106 0 357 4 vmsppl 456 1130 0 1100 6 1 5 5 0 8 0 rwobjpl 64 25869 0 21316 74 0 74 74 0 8 0 pdppl 4096 2270 0 2200 118 44 74 86 0 8 4 pvpl 32 17752 0 0 144 0 144 144 0 265 0 pmappl 248 1130 0 1100 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 361 0 53 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace bpfdetach(ffff800001475800) at bpfdetach+0x70 sys/net/bpf.c:1778 if_detach(ffff800001475800) at if_detach+0x153 sys/net/if.c:1200 tun_clone_destroy(ffff800001475800) at tun_clone_destroy+0x2d6 sys/net/if_tun.c:346 if_clone_destroy(ffff80002a469e10) at if_clone_destroy+0x1d7 sys/net/if.c:1389 ifioctl(ffff8000014f5090,80206979,ffff80002a469e10,ffff80002a3294b0) at ifioctl+0x5c5 sys/net/if.c:-1 sys_ioctl(ffff80002a3294b0,ffff80002a469ff0,ffff80002a469f40) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80002a469ff0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a469ff0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcccb18fa360, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff838ecc68) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838ecc68) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff838ecc68,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 sleep_finish(0,1) at sleep_finish+0x24f sys/kern/kern_synch.c:412 biowait(fffffd806bfff7c8) at biowait+0xc1 sys/kern/vfs_bio.c:1246 bwrite(fffffd806bfff7c8) at bwrite+0x2e5 sys/kern/vfs_bio.c:758 VOP_BWRITE(fffffd806bfff7c8) at VOP_BWRITE+0x60 sys/kern/vfs_vops.c:648 ufs_direnter(fffffd806c321dc0,fffffd8079b0fe68,ffff80002a457b80,ffff80002a457ea0,fffffd8075b54c08) at ufs_direnter+0x7d1 sys/ufs/ufs/ufs_lookup.c:833 ufs_mkdir(ffff80002a457d10) at ufs_mkdir+0x60f sys/ufs/ufs/ufs_vnops.c:1179 VOP_MKDIR(fffffd806c321dc0,ffff80002a457e70,ffff80002a457ea0,ffff80002a457da0) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a2f8008,ffffff9c,7926c574a080,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3117 syscall(ffff80002a458020) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a458020) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7926c574a120, count: -16