panic: vclean: deadlock Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 24034 11255 0 0x8000002 0 0 syz-executor *297919 62724 0 0x8000002 0 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dea7c) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd80780ba990,8,ffff800036398cd0) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd80780ba990,ffff800036398cd0) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80780ba120,412dff,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff800037201850) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,19ab3,ffff800037201938) at ffs_vget+0x429 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd80612936f0,ffff800037201bb8,ffff800037201be8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800037201b88) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800037201b88) at namei+0x7aa sys/kern/vfs_lookup.c:250 dofstatat(ffff800036398cd0,ffffff9c,7a8492223880,7a8492223c80,2) at dofstatat+0xd2 sys/kern/vfs_syscalls.c:2070 syscall(ffff800037201e00) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037201e00) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a8492223d30, count: 1 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: vclean: deadlock ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dea7c) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd80780ba990,8,ffff800036398cd0) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd80780ba990,ffff800036398cd0) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80780ba120,412dff,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff800037201850) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,19ab3,ffff800037201938) at ffs_vget+0x429 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd80612936f0,ffff800037201bb8,ffff800037201be8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800037201b88) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800037201b88) at namei+0x7aa sys/kern/vfs_lookup.c:250 dofstatat(ffff800036398cd0,ffffff9c,7a8492223880,7a8492223c80,2) at dofstatat+0xd2 sys/kern/vfs_syscalls.c:2070 syscall(ffff800037201e00) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037201e00) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a8492223d30, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000372015c0 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff800036398cd0 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfbc22abcb94e47d r11 0xcb4efa3debc586db r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff81ff41c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000372015b0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=297919 pid=62724 tcnt=1 stat=onproc flags process=8000002 proc=0 runpri=80, usrpri=80, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800036399978,0xffff800036399c10 process=0xffff80002e973a98 user=0xffff8000371fc000, vmspace=0xfffffd8073220898 estcpu=36, cpticks=0, pctcpu=0.1, user=0, sys=4, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 11255 24034 68586 0 7 0x8000002 syz-executor 88919 357960 68586 0 3 0x8000002 getblk syz-executor *62724 297919 68586 0 7 0x8000002 syz-executor 56242 20612 68586 0 3 0x8000002 getblk syz-executor 27614 149508 68586 0 3 0x8000002 biowait syz-executor 19673 120348 68586 0 3 0x8000002 getblk syz-executor 56152 436473 68586 0 3 0x8000002 biowait syz-executor 45099 310650 1 0 3 0x18100083 ttyin getty 13646 77814 0 0 3 0x14200 bored sosplice 68586 21649 23366 0 3 0x8000082 wait syz-executor 23366 371462 9036 0 3 0x810008a sigsusp ksh 9036 320668 1165 0 3 0x18000098 kqread sshd-session 1165 167134 23748 0 3 0x18000092 kqread sshd-session 23748 422763 1 0 3 0x18000088 kqread sshd 57648 386610 69887 74 3 0x19100092 bpf pflogd 69887 355075 1 0 3 0x18000080 sbwait pflogd 35593 210289 33750 73 3 0x19100010 biowait syslogd 33750 333191 1 0 3 0x18100082 sbwait syslogd 85621 342500 1 0 3 0x18100080 kqread resolvd 47678 439567 36897 77 3 0x18100092 kqread dhcpleased 95116 495597 36897 77 3 0x18100092 kqread dhcpleased 36897 278703 1 0 3 0x18000080 kqread dhcpleased 76049 326415 0 0 3 0x14200 bored smr 47758 274308 0 0 2 0x14200 zerothread 4922 402142 0 0 3 0x14200 aiodoned aiodoned 48393 274712 0 0 3 0x14200 syncer update 56362 472801 0 0 3 0x14200 cleaner cleaner 48725 227453 0 0 3 0x14200 reaper reaper 29974 63583 0 0 3 0x14200 pgdaemon pagedaemon 92693 94467 0 0 3 0x14200 bored viomb 76324 494309 0 0 3 0x40014200 acpi0 acpi0 96782 428045 0 0 3 0x40014200 idle1 3635 492294 0 0 3 0x14200 bored softnet3 18443 300282 0 0 3 0x14200 bored softnet2 69753 22602 0 0 3 0x14200 bored softnet1 39062 190744 0 0 3 0x14200 bored softnet0 80979 243818 0 0 3 0x14200 bored systqmp 27863 293794 0 0 3 0x14200 bored systq 79113 488869 0 0 3 0x14200 tmoslp softclockmp 68343 476215 0 0 3 0x40014200 tmoslp softclock 45387 34879 0 0 3 0x40014200 idle0 1 381207 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c:119 r = 0 (0xffffffff8348b0d8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vclean+0x87 sys/kern/vfs_subr.c:1051 #4 vgonel+0xec sys/kern/vfs_subr.c:1197 #5 checkalias+0x1ab #6 ffs_vinit+0x13d #7 ffs_vget+0x429 sys/ufs/ffs/ffs_vfsops.c:1283 #8 ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dofstatat+0xd2 sys/kern/vfs_syscalls.c:2070 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 88919 (syz-executor) thread 0xffff800036399c00 (357960) Process 62724 (syz-executor) thread 0xffff800036398cd0 (297919) Process 56242 (syz-executor) thread 0xffff800036399978 (20612) Process 27614 (syz-executor) thread 0xffff800036399468 (149508) Process 19673 (syz-executor) thread 0xffff8000371e2540 (120348) Process 56152 (syz-executor) thread 0xffff8000371e3980 (436473) Process 35593 (syslogd) thread 0xffff8000ffffd960 (210289) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10231 10179K 10830K 166960K 20588 0 pcb 17 18K 23K 166960K 1470 0 rtable 217 15K 15K 166960K 7543 0 pf 36 10K 11K 166960K 656 0 ifaddr 45 19K 20K 166960K 1005 0 ifgroup 63 2K 2K 166960K 1147 0 sysctl 4 1K 1K 166960K 8 0 counters 68 36K 37K 166960K 626 0 ioctlops 0 0K 5K 166960K 2284 0 iov 0 0K 24K 166960K 369 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1570 99K 99K 166960K 9275 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 106 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 728 0 dirhash 18 3K 3K 166960K 96 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 11 34K 93K 166960K 7376 0 sigio 0 0K 0K 166960K 146 0 proc 71 91K 128K 166960K 6861 0 subproc 104 6K 7K 166960K 2912 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 613 0 in_multi 95 7K 7K 166960K 2595 0 ether_multi 1 0K 0K 166960K 34 0 mrt 1 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 3925 0 pfkey data 0 0K 0K 166960K 12 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 208 112K 149K 166960K 58160 0 UVM aobj 131 8K 8K 166960K 137 0 pinsyscall 36 72K 105K 166960K 14071 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 269 0 NDP 14 0K 2K 166960K 743 0 temp 76 6816K 14752K 166960K 319969 0 kqueue 13 20K 32K 166960K 652 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 1126 0 1123 9 8 1 3 0 8 0 rtentry 112 2751 0 2655 5 2 3 4 0 8 0 unpcb 144 5384 0 5367 59 58 1 9 0 8 0 syncache 336 13 0 13 8 8 0 1 0 8 0 tcpqe 32 1 24 1 1 1 0 1 0 8 0 tcpcb 808 1859 0 1853 65 64 1 8 0 8 0 arp 120 516 0 498 1 0 1 1 0 8 0 inpcb 336 8081 0 8071 103 101 2 18 0 8 0 nd6 136 736 0 711 3 2 1 2 0 8 0 pkpcb 40 27 0 27 17 17 0 1 0 8 0 kcovpl 48 224 0 216 1 0 1 1 0 8 0 ppxss 1168 33 0 33 17 17 0 1 0 8 0 pffrag 232 37 0 37 4 4 0 1 0 482 0 pffrnode 88 37 0 37 4 4 0 1 0 8 0 pffrent 40 188 0 188 4 4 0 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 614 0 581 1 0 1 1 0 8 0 pfstkey 128 614 0 581 4 1 3 3 0 8 0 pfstate 376 614 0 581 12 6 6 8 0 8 0 pfrule 1344 27 0 22 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 10587 0 10136 59 30 29 32 0 8 0 art_table 32 10588 0 10136 5 1 4 5 0 8 0 art_node 16 2741 0 2655 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 2 2 1 1 1 0 8 0 semapl 112 724 0 714 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 74 0 52 3 0 3 3 0 8 0 dino2pl 256 10323 0 8381 122 0 122 122 0 8 0 ffsino 272 10323 0 8381 131 1 130 130 0 8 0 nchpl 144 17255 0 16360 74 40 34 66 0 8 0 uvmvnodes 80 9307 0 0 190 0 190 190 0 8 0 vnodes 216 9307 0 0 518 0 518 518 0 8 0 namei 1024 86456 0 86454 13 12 1 2 0 8 0 percpumem 16 327 0 279 1 0 1 1 0 8 0 vcpupl 3904 13 0 1 2 0 2 2 0 8 0 vmpool 696 37 0 25 5 3 2 2 0 8 0 kstatmem 264 586 0 558 10 8 2 3 0 8 0 scsiplug 72 19 0 19 12 12 0 1 0 8 0 scxspl 216 149275 0 149272 38 37 1 8 1 8 0 plimitpl 152 2196 0 2179 1 0 1 1 0 8 0 sigapl 424 7280 0 7235 12 5 7 9 0 8 0 futexpl 64 91823 0 91823 18 17 1 1 0 8 1 knotepl 120 959 0 0 26 1 25 25 0 8 0 kqueuepl 216 1919 0 1910 31 30 1 5 0 8 0 pipepl 320 1457 0 1430 17 14 3 8 0 8 0 fdescpl 496 7234 0 7209 12 7 5 5 0 8 0 filepl 152 53559 0 53316 124 111 13 23 0 8 3 lockfpl 104 2471 0 2469 5 4 1 2 0 8 0 lockfspl 48 869 0 867 1 0 1 1 0 8 0 sessionpl 144 238 0 229 1 0 1 1 0 8 0 pgrppl 48 577 0 559 1 0 1 1 0 8 0 ucredpl 104 9551 0 9538 2 1 1 2 0 8 0 zombiepl 144 7238 0 7235 3 2 1 1 0 8 0 processpl 1152 7280 0 7235 7 3 4 6 0 8 0 procpl 648 14308 0 14263 14 8 6 8 0 8 0 srpgc 96 40 0 40 12 12 0 1 0 8 0 sosppl 168 20 0 20 13 13 0 1 0 8 0 sockpl 664 14736 0 14706 171 167 4 25 0 8 0 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 438 0 0 29 7 22 29 0 8 0 mtagpl 96 68 0 0 2 0 2 2 0 8 0 mbufpl 256 1169 0 0 51 0 51 51 0 8 0 bufpl 280 21378 0 12071 665 0 665 665 0 8 0 anonpl 24 903700 0 898942 221 160 61 98 0 185 13 amapchunkpl 152 185664 0 185262 102 67 35 36 0 158 9 amappl16 200 14399 0 14359 196 191 5 26 0 8 0 amappl15 192 41 0 41 1 1 0 1 0 8 0 amappl14 184 550 0 538 1 0 1 1 0 8 0 amappl13 176 16 0 16 2 2 0 1 0 8 0 amappl12 168 11302 0 11278 4 2 2 3 0 8 0 amappl11 160 58 0 43 1 0 1 1 0 8 0 amappl10 152 14 0 14 1 1 0 1 0 8 0 amappl9 144 150 0 149 1 0 1 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 543 0 531 1 0 1 1 0 8 0 amappl6 120 2317 0 2315 1 0 1 1 0 8 0 amappl5 112 995 0 983 1 0 1 1 0 8 0 amappl4 104 980 0 959 1 0 1 1 0 8 0 amappl3 96 36521 0 36443 4 0 4 4 0 8 0 amappl2 88 3662 0 3596 2 0 2 2 0 8 0 amappl1 80 42625 0 42060 17 3 14 14 0 8 0 amappl 88 55841 0 55706 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 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 7271 0 7234 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7271 0 7234 1 0 1 1 0 8 0 vmmpekpl 168 59168 0 59114 3 0 3 3 0 8 0 vmmpepl 168 436808 0 435217 215 128 87 105 0 357 0 vmsppl 440 7270 0 7234 9 3 6 6 0 8 0 rwobjpl 56 122540 0 112171 167 19 148 150 0 8 0 pdppl 4096 14549 0 14480 417 334 83 89 0 8 14 pvpl 32 35764 0 0 285 1 284 284 0 265 0 pmappl 248 7270 0 7234 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1027 0 576 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8341fff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 intr_handler(ffff80002a73fda0,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8356af18) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8356af18) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a73ff70) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a73ff70) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73cfedfede40, count: 6 ddb{0}> trace x86_ipi_db(ffffffff8341fff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 intr_handler(ffff80002a73fda0,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8356af18) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8356af18) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a73ff70) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a73ff70) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73cfedfede40, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dea7c) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd80780ba990,8,ffff800036398cd0) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd80780ba990,ffff800036398cd0) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80780ba120,412dff,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff800037201850) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,19ab3,ffff800037201938) at ffs_vget+0x429 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd80612936f0,ffff800037201bb8,ffff800037201be8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800037201b88) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800037201b88) at namei+0x7aa sys/kern/vfs_lookup.c:250 dofstatat(ffff800036398cd0,ffffff9c,7a8492223880,7a8492223c80,2) at dofstatat+0xd2 sys/kern/vfs_syscalls.c:2070 syscall(ffff800037201e00) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037201e00) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a8492223d30, count: 1 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dea7c) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd80780ba990,8,ffff800036398cd0) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd80780ba990,ffff800036398cd0) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80780ba120,412dff,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff800037201850) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,19ab3,ffff800037201938) at ffs_vget+0x429 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd80612936f0,ffff800037201bb8,ffff800037201be8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800037201b88) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff800037201b88) at namei+0x7aa sys/kern/vfs_lookup.c:250 dofstatat(ffff800036398cd0,ffffff9c,7a8492223880,7a8492223c80,2) at dofstatat+0xd2 sys/kern/vfs_syscalls.c:2070 syscall(ffff800037201e00) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037201e00) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a8492223d30, count: -14