panic: vclean: deadlock Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 60238 73502 0 0x8000000 0x4000000 1K syz-executor 123644 11322 0 0x8000002 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dcab3) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd806b64a010,8,ffff800032d81470) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd806b64a010,ffff800032d81470) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80628d13b8,0,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff80002fd8b5f0) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,199eb,ffff80002fd8b6d8) 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(fffffd8073c1aea0,ffff80002fd8bb28,ffff80002fd8bb58) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002fd8baf8) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002fd8baf8) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80002fd8baf8,1,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff800032d81470,ffffff9c,20000080,0,0,ffff80002fd8bca0) at doopenat+0x31d sys/kern/vfs_syscalls.c:1123 syscall(ffff80002fd8bd50) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002fd8bd50) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff80002fd8bdd0, count: 0 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(ffffffff830dcab3) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd806b64a010,8,ffff800032d81470) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd806b64a010,ffff800032d81470) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80628d13b8,0,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff80002fd8b5f0) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,199eb,ffff80002fd8b6d8) 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(fffffd8073c1aea0,ffff80002fd8bb28,ffff80002fd8bb58) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002fd8baf8) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002fd8baf8) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80002fd8baf8,1,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff800032d81470,ffffff9c,20000080,0,0,ffff80002fd8bca0) at doopenat+0x31d sys/kern/vfs_syscalls.c:1123 syscall(ffff80002fd8bd50) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002fd8bd50) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbff4f302160, count: -15 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002fd8b360 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff800032d81470 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x602dcc7db02e5c4c r11 0xe78eed00fbb9a37f r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff82d4df45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002fd8b350 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=60238 pid=73502 tcnt=4 stat=onproc flags process=8000000 proc=4000000 runpri=17, usrpri=82, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800032d80a50,0xffff800036998f68 process=0xffff80002fda5b30 user=0xffff80002fd86000, vmspace=0xfffffd806c575a68 estcpu=32, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 69874 81363 844 0 2 0x8000000 syz-executor 69874 31187 844 0 2 0xc000000 syz-executor 60933 364584 16478 0 2 0x8000000 syz-executor 60933 371524 16478 0 3 0xc000080 fsleep syz-executor 60933 407504 16478 0 3 0xc000080 fsleep syz-executor 60933 265546 16478 0 3 0xc000080 fsleep syz-executor 19768 3093 65773 0 2 0x8000000 syz-executor 19768 513697 65773 0 2 0xc000000 syz-executor 19768 116924 65773 0 3 0xc000080 fsleep syz-executor 19768 430600 65773 0 3 0xc000080 fsleep syz-executor 74778 421250 82296 0 2 0x8000000 syz-executor 74778 307787 82296 0 3 0xc000080 fsleep syz-executor 73502 242256 71248 0 2 0x8000000 syz-executor *73502 60238 71248 0 7 0xc000000 syz-executor 73502 90645 71248 0 3 0xc000080 fsleep syz-executor 73502 413747 71248 0 3 0xc000080 fsleep syz-executor 82296 142574 95771 0 3 0x8000082 nanoslp syz-executor 1648 117362 95771 0 2 0x8000002 syz-executor 71248 282624 95771 0 3 0x8000082 nanoslp syz-executor 65773 83791 95771 0 2 0x8000002 syz-executor 11322 123644 95771 0 7 0x8000002 syz-executor 844 43014 95771 0 3 0x8000082 nanoslp syz-executor 16478 416120 95771 0 3 0x8000082 nanoslp syz-executor 6247 445908 95771 0 3 0x8000002 biowait syz-executor 52323 58020 0 0 3 0x14200 acct acct 33804 316643 0 0 3 0x14200 bored sosplice 45306 421564 0 0 3 0x14280 nfsidl nfsio 11211 521510 0 0 3 0x14280 nfsidl nfsio 31239 145380 0 0 3 0x14280 nfsidl nfsio 69957 406154 0 0 3 0x14280 nfsidl nfsio 34881 48369 0 0 3 0x14280 nfsidl nfsio 78524 290628 0 0 3 0x14280 nfsidl nfsio 2544 3388 0 0 3 0x14280 nfsidl nfsio 22496 4494 0 0 3 0x14280 nfsidl nfsio 17307 411719 0 0 3 0x14280 nfsidl nfsio 65782 394792 0 0 3 0x14280 nfsidl nfsio 86466 487832 0 0 3 0x14280 nfsidl nfsio 56223 86877 0 0 3 0x14280 nfsidl nfsio 17470 261268 0 0 3 0x14280 nfsidl nfsio 75023 215089 0 0 3 0x14280 nfsidl nfsio 24971 242241 0 0 3 0x14280 nfsidl nfsio 40569 23241 0 0 3 0x14280 nfsidl nfsio 71762 488624 0 0 3 0x14280 nfsidl nfsio 58936 365336 0 0 3 0x14280 nfsidl nfsio 69796 183984 0 0 3 0x14280 nfsidl nfsio 67577 359200 0 0 3 0x14280 nfsidl nfsio 95771 2272 53825 0 3 0x8000082 kqread syz-executor 53825 125290 66538 0 3 0x810008a sigsusp ksh 66538 69312 94965 0 3 0x18000098 kqread sshd-session 94965 382674 99094 0 3 0x18000092 kqread sshd-session 70258 507261 1 0 3 0x18100083 ttyopn getty 99094 469992 1 0 3 0x18000088 kqread sshd 57150 291476 32967 74 3 0x19100092 bpf pflogd 32967 459315 1 0 3 0x18000080 sbwait pflogd 8054 73538 38903 73 3 0x19100010 biowait syslogd 38903 331518 1 0 3 0x18100082 sbwait syslogd 65019 152621 1 0 3 0x18100080 kqread resolvd 7252 70426 7543 77 3 0x18100092 kqread dhcpleased 33809 125003 7543 77 3 0x18100092 kqread dhcpleased 7543 404741 1 0 3 0x18000080 kqread dhcpleased 34701 267115 0 0 3 0x14200 bored smr 22471 516017 0 0 2 0x14200 zerothread 37977 434187 0 0 3 0x14200 aiodoned aiodoned 71591 291492 0 0 3 0x14200 syncer update 26333 148658 0 0 3 0x14200 cleaner cleaner 53192 376615 0 0 3 0x14200 reaper reaper 31151 497082 0 0 3 0x14200 pgdaemon pagedaemon 47183 169116 0 0 3 0x14200 bored viomb 37694 407703 0 0 3 0x40014200 acpi0 acpi0 15841 60652 0 0 3 0x40014200 idle1 99883 425986 0 0 3 0x14200 bored softnet3 27972 496884 0 0 3 0x14200 bored softnet2 68483 112966 0 0 3 0x14200 bored softnet1 61660 314492 0 0 3 0x14200 bored softnet0 39749 305206 0 0 3 0x14200 bored systqmp 6022 260759 0 0 3 0x14200 bored systq 33695 225508 0 0 3 0x14200 tmoslp softclockmp 17289 321850 0 0 3 0x40014200 tmoslp softclock 91613 203081 0 0 3 0x40014200 idle0 1 35710 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 (0xffffffff8341ff18) #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 vn_open+0x13f sys/kern/vfs_vnops.c:140 #13 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #14 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #14 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 73502 (syz-executor) thread 0xffff800032d81470 (60238) Process 1648 (syz-executor) thread 0xffff800032d811e8 (117362) Process 6247 (syz-executor) thread 0xffff800032d816f8 (445908) Process 8054 (syslogd) thread 0xffff8000ffffd960 (73538) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10214 10300K 10753K 166960K 12511 0 pcb 18 13K 14K 166960K 189 0 rtable 200 8K 9K 166960K 1813 0 pf 37 10K 14K 166960K 187 0 ifaddr 43 15K 15K 166960K 238 0 ifgroup 63 2K 2K 166960K 249 0 sysctl 3 0K 0K 166960K 3 0 counters 68 36K 36K 166960K 164 0 ioctlops 0 0K 4K 166960K 1650 0 iov 0 0K 14K 166960K 47 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1450 91K 92K 166960K 2689 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 45 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 15 53K 93K 166960K 1386 0 sigio 0 0K 0K 166960K 16 0 proc 70 91K 127K 166960K 1835 0 subproc 104 6K 6K 166960K 690 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 49 0 in_multi 85 6K 7K 166960K 604 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 1063 0 pfkey data 0 0K 0K 166960K 7 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 226 92K 107K 166960K 12091 0 UVM aobj 86 3K 3K 166960K 87 0 pinsyscall 40 80K 106K 166960K 3635 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 37 0 NDP 14 0K 2K 166960K 168 0 temp 75 6816K 6881K 166960K 39812 0 kqueue 13 20K 28K 166960K 103 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 120 223 0 220 2 1 1 2 0 8 0 rtentry 112 631 0 543 4 1 3 4 0 8 0 unpcb 144 946 0 796 17 11 6 6 0 8 0 syncache 336 10 0 10 4 3 1 1 0 8 1 tcpcb 808 402 0 398 17 14 3 8 0 8 2 arp 120 114 0 98 1 0 1 1 0 8 0 inpcb 384 1475 0 1465 33 25 8 12 0 8 6 nd6 136 166 0 144 1 0 1 1 0 8 0 pkpcb 40 44 0 44 4 3 1 1 0 8 1 kcovpl 48 53 0 45 1 0 1 1 0 8 0 ppxss 1168 3 0 3 2 2 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 9 0 5 1 0 1 1 0 482 0 pffrnode 88 9 0 5 1 0 1 1 0 8 0 pffrent 40 10 0 6 1 0 1 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 pfrktable 1344 5 0 5 2 1 1 1 0 8 1 pftag 88 12 0 12 2 1 1 1 0 8 1 pfstitem 24 94 0 73 1 0 1 1 0 8 0 pfstkey 128 96 0 75 2 0 2 2 0 8 0 pfstate 376 95 0 74 4 1 3 4 0 8 0 pfrule 1344 30 0 25 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2509 0 2132 36 9 27 29 0 8 0 art_table 32 2510 0 2132 4 0 4 4 0 8 0 art_node 16 630 0 552 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 3 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 43 0 33 1 0 1 1 0 8 0 shmpl 112 84 0 1 3 0 3 3 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2772 0 1183 100 0 100 100 0 8 0 ffsino 272 2772 0 1183 107 0 107 107 0 8 0 nchpl 144 3893 0 2154 65 0 65 65 0 8 0 uvmvnodes 80 3950 0 0 81 0 81 81 0 8 0 vnodes 216 3950 0 0 220 0 220 220 0 8 0 namei 1024 18276 0 18274 3 2 1 1 0 8 0 percpumem 16 96 0 48 1 0 1 1 0 8 0 vcpupl 3904 1 0 0 1 0 1 1 0 8 0 vmpool 696 4 0 3 3 2 1 1 0 8 0 kstatmem 264 124 0 96 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 25948 0 25946 13 11 2 8 1 8 1 plimitpl 152 289 0 272 1 0 1 1 0 8 0 sigapl 424 1621 0 1552 11 2 9 9 0 8 0 futexpl 64 10887 0 10879 5 4 1 1 0 8 0 knotepl 120 397 0 0 10 0 10 10 0 8 0 kqueuepl 216 338 0 329 7 6 1 5 0 8 0 pipepl 320 360 0 330 7 4 3 7 0 8 0 fdescpl 496 1579 0 1550 7 2 5 5 0 8 0 filepl 152 9793 0 9401 38 22 16 21 0 8 0 lockfpl 104 335 0 333 2 1 1 2 0 8 0 lockfspl 48 127 0 125 1 0 1 1 0 8 0 sessionpl 144 67 0 58 1 0 1 1 0 8 0 pgrppl 48 129 0 112 1 0 1 1 0 8 0 ucredpl 104 1119 0 1105 1 0 1 1 0 8 0 zombiepl 144 1552 0 1552 1 0 1 1 0 8 1 processpl 1152 1621 0 1552 7 1 6 6 0 8 0 procpl 648 2736 0 2656 11 3 8 8 0 8 0 srpgc 96 12 0 12 2 1 1 1 0 8 1 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 664 2691 0 2528 52 38 14 22 0 8 0 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 234 0 0 30 0 30 30 0 8 0 mtagpl 96 38 0 0 1 0 1 1 0 8 0 mbufpl 256 1807 0 0 110 0 110 110 0 8 0 bufpl 280 9818 0 3232 471 0 471 471 0 8 0 anonpl 24 264126 0 260827 81 19 62 75 0 185 24 amapchunkpl 152 37891 0 37441 36 6 30 33 0 158 9 amappl16 200 4905 0 4892 40 36 4 20 0 8 3 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 211 0 199 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 2941 0 2912 4 2 2 3 0 8 0 amappl11 160 67 0 52 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 146 0 145 1 0 1 1 0 8 0 amappl8 136 19 0 17 1 0 1 1 0 8 0 amappl7 128 222 0 210 1 0 1 1 0 8 0 amappl6 120 614 0 612 1 0 1 1 0 8 0 amappl5 112 312 0 301 1 0 1 1 0 8 0 amappl4 104 465 0 444 1 0 1 1 0 8 0 amappl3 96 7311 0 7206 4 0 4 4 0 8 0 amappl2 88 1250 0 1184 2 0 2 2 0 8 0 amappl1 80 14216 0 13641 17 3 14 15 0 8 0 amappl 88 11344 0 11184 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 86 0 1 2 0 2 2 0 8 0 uaddrrnd 24 1583 0 1553 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1583 0 1553 1 0 1 1 0 8 0 vmmpekpl 168 14811 0 14753 3 0 3 3 0 8 0 vmmpepl 168 103311 0 101532 111 25 86 100 0 357 2 vmsppl 440 1582 0 1553 6 2 4 5 0 8 0 rwobjpl 56 35641 0 30686 73 2 71 71 0 8 0 pdppl 4096 3173 0 3107 166 94 72 85 0 8 6 pvpl 32 32824 0 0 264 1 263 263 0 265 0 pmappl 248 1582 0 1553 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 586 0 126 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834a3ff0) 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 __mp_lock(ffffffff8355d5e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8355d5e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a14c5e0,ffff80000006c780) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __mp_lock(ffffffff8355d5e0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8355d5e0) at __mp_lock+0x199 sys/kern/kern_lock.c:144 intr_handler(ffff80002a14c740,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4 sys/dev/kcov.c:154 syscall(ffff80002a14c920) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a14c920) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x792739bce9f0, count: 3 ddb{0}> trace x86_ipi_db(ffffffff834a3ff0) 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 __mp_lock(ffffffff8355d5e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8355d5e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a14c5e0,ffff80000006c780) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __mp_lock(ffffffff8355d5e0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8355d5e0) at __mp_lock+0x199 sys/kern/kern_lock.c:144 intr_handler(ffff80002a14c740,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4 sys/dev/kcov.c:154 syscall(ffff80002a14c920) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a14c920) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x792739bce9f0, count: -12 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(ffffffff830dcab3) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd806b64a010,8,ffff800032d81470) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd806b64a010,ffff800032d81470) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80628d13b8,0,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff80002fd8b5f0) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,199eb,ffff80002fd8b6d8) 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(fffffd8073c1aea0,ffff80002fd8bb28,ffff80002fd8bb58) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002fd8baf8) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002fd8baf8) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80002fd8baf8,1,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff800032d81470,ffffff9c,20000080,0,0,ffff80002fd8bca0) at doopenat+0x31d sys/kern/vfs_syscalls.c:1123 syscall(ffff80002fd8bd50) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002fd8bd50) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff80002fd8bdd0, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830dcab3) at panic+0x1e5 sys/kern/subr_prf.c:198 vclean(fffffd806b64a010,8,ffff800032d81470) at vclean+0x482 sys/kern/vfs_subr.c:1065 vgonel(fffffd806b64a010,ffff800032d81470) at vgonel+0xec sys/kern/vfs_subr.c:1197 checkalias(fffffd80628d13b8,0,ffff800000a66c00) at checkalias+0x1ab ffs_vinit(ffff800000a66c00,ffff80002fd8b5f0) at ffs_vinit+0x13d ffs_vget(ffff800000a66c00,199eb,ffff80002fd8b6d8) 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(fffffd8073c1aea0,ffff80002fd8bb28,ffff80002fd8bb58) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002fd8baf8) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002fd8baf8) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80002fd8baf8,1,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff800032d81470,ffffff9c,20000080,0,0,ffff80002fd8bca0) at doopenat+0x31d sys/kern/vfs_syscalls.c:1123 syscall(ffff80002fd8bd50) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002fd8bd50) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbff4f302160, count: -15