panic: ffs_valloc: dup alloc Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *167428 85503 0 0 0x4000000 1K syz-executor 330290 6769 0 0 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8349897d) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806bf83028,4000,fffffd80097fd340,ffff80003c3d47f8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80003c3d4860) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd8064c71478,ffff80003c3d49c0,ffff80003c3d49f0,ffff80003c3d48f0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c44a560,ffffff9c,200000000000,0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 syscall(ffff80003c3d4b70) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d4b70) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2edf6f734a0, count: 7 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: ffs_valloc: dup alloc ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8349897d) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806bf83028,4000,fffffd80097fd340,ffff80003c3d47f8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80003c3d4860) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd8064c71478,ffff80003c3d49c0,ffff80003c3d49f0,ffff80003c3d48f0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c44a560,ffffff9c,200000000000,0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 syscall(ffff80003c3d4b70) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d4b70) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2edf6f734a0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c3d4570 rbx 0xffff80002999ee07 rdx 0xffff8000015f7140 rcx 0xffff80003c44a560 rax 0xffff80002999dff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe9352f058b25cd64 r11 0xee1cd42fa560e166 r12 0xffff80002999ec08 r13 0 r14 0 r15 0x1 rip 0xffffffff8270b8e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c3d4560 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=167428 pid=85503 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c44b788,0xffff80003c3d62d0 process=0xffff8000fffdc4f8 user=0xffff80003c3cf000, vmspace=0xfffffd806c1cf9a0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85503 68927 51037 0 2 0 syz-executor *85503 167428 51037 0 7 0x4000000 syz-executor 68572 124824 76988 0 2 0 syz-executor 68572 202122 76988 0 3 0x4000080 fsleep syz-executor 6769 330290 67141 0 7 0 syz-executor 6769 393160 67141 0 3 0x4000080 fsleep syz-executor 42919 181333 85958 0 2 0 syz-executor 42919 124662 85958 0 3 0x4000080 lockf syz-executor 42919 470026 85958 0 3 0x4000080 lockf syz-executor 62390 322335 95416 0 2 0 syz-executor 62390 86250 95416 0 3 0x4000080 fsleep syz-executor 62390 440925 95416 0 3 0x4000080 fsleep syz-executor 84328 470908 61727 0 2 0 syz-executor 84328 157036 61727 0 3 0x4000000 biowait syz-executor 84328 201892 61727 0 3 0x4000080 fsleep syz-executor 15595 49532 0 0 3 0x14280 nfsidl nfsio 91950 453679 0 0 3 0x14280 nfsidl nfsio 36797 201883 0 0 3 0x14280 nfsidl nfsio 34543 704 0 0 3 0x14280 nfsidl nfsio 41268 514107 0 0 3 0x14280 nfsidl nfsio 61663 48897 0 0 3 0x14280 nfsidl nfsio 22283 483909 0 0 3 0x14280 nfsidl nfsio 16500 411480 0 0 3 0x14280 nfsidl nfsio 58276 391929 0 0 3 0x14280 nfsidl nfsio 54650 102976 0 0 3 0x14280 nfsidl nfsio 93396 446282 0 0 3 0x14280 nfsidl nfsio 52450 33597 0 0 3 0x14280 nfsidl nfsio 75574 185442 0 0 3 0x14280 nfsidl nfsio 72899 468150 0 0 3 0x14280 nfsidl nfsio 70424 126939 0 0 3 0x14280 nfsidl nfsio 45822 322531 0 0 3 0x14280 nfsidl nfsio 38254 399205 0 0 3 0x14280 nfsidl nfsio 48474 479384 0 0 3 0x14280 nfsidl nfsio 78355 508934 0 0 3 0x14280 nfsidl nfsio 55277 508873 0 0 3 0x14280 nfsidl nfsio 33034 348847 0 0 3 0x14200 acct acct 10289 508843 74826 0 3 0x100082 sbwait arp 74826 472662 25502 0 3 0x10008a sigsusp sh 51037 139109 691 0 3 0x82 nanoslp syz-executor 61727 132722 691 0 3 0x82 nanoslp syz-executor 85958 194645 691 0 3 0x82 nanoslp syz-executor 95416 37091 691 0 3 0x82 nanoslp syz-executor 67141 213820 691 0 3 0x82 nanoslp syz-executor 25502 233379 691 0 3 0x82 wait syz-executor 76988 394955 691 0 3 0x82 nanoslp syz-executor 691 207041 64292 0 3 0x82 wait syz-executor 64292 437324 28451 0 3 0x10008a sigsusp ksh 28451 295102 90922 0 3 0x98 kqread sshd-session 90922 165011 69025 0 3 0x92 kqread sshd-session 4531 300238 1 0 3 0x100083 ttyin getty 69025 414229 1 0 3 0x88 kqread sshd 1763 93344 20178 74 3 0x1100092 bpf pflogd 20178 316416 1 0 3 0x80 sbwait pflogd 81847 145094 10962 73 3 0x1100090 kqread syslogd 10962 37342 1 0 3 0x100082 sbwait syslogd 97233 441582 1 0 3 0x100080 kqread resolvd 63499 410947 66657 77 3 0x100092 kqread dhcpleased 48050 2709 66657 77 3 0x100092 kqread dhcpleased 66657 231597 1 0 3 0x80 kqread dhcpleased 79107 106009 0 0 3 0x14200 bored smr 85245 121647 0 0 2 0x14200 zerothread 68112 491373 0 0 3 0x14200 aiodoned aiodoned 92026 284876 0 0 3 0x14200 syncer update 51028 488034 0 0 3 0x14200 cleaner cleaner 16207 371207 0 0 3 0x14200 reaper reaper 96704 486656 0 0 3 0x14200 pgdaemon pagedaemon 22126 113909 0 0 3 0x14200 bored viomb 17273 147535 0 0 3 0x40014200 acpi0 acpi0 28315 274489 0 0 3 0x40014200 idle1 90911 109843 0 0 3 0x14200 bored softnet1 96887 132982 0 0 3 0x14200 bored softnet0 319 397447 0 0 3 0x14200 bored systqmp 71248 248781 0 0 3 0x14200 bored systq 20934 312414 0 0 3 0x14200 tmoslp softclockmp 47538 215814 0 0 3 0x40014200 tmoslp softclock 75952 242446 0 0 3 0x40014200 idle0 1 494687 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 85503 (syz-executor) thread 0xffff80003c44a560 (167428) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a3b680) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #3 biowait+0xc6 sys/kern/vfs_bio.c:1242 #4 ffs_vget+0x283 sys/ufs/ffs/ffs_vfsops.c:1249 #5 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #6 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #7 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #8 domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 #9 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c881d78) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #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:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bf830c8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3134 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 6769 (syz-executor) thread 0xffff8000fffea020 (330290) exclusive rwlock uobjlk r = 0 (0xfffffd806ce10018) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvm_fault+0x1e5 sys/uvm/uvm_fault.c:649 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #4 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806c1cf8b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11066 12091K 12345K 166960K 12662 0 pcb 17 15K 16K 166960K 146 0 rtable 210 7K 7K 166960K 365 0 pf 36 18K 24K 166960K 108 0 ifaddr 37 6K 7K 166960K 60 0 ifgroup 51 2K 2K 166960K 89 0 sysctl 3 1K 9K 166960K 11 0 counters 68 36K 37K 166960K 114 0 ioctlops 0 0K 4K 166960K 1611 0 iov 0 0K 32K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1323 83K 84K 166960K 1598 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 23 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 110K 166960K 392 0 sigio 1 0K 0K 166960K 67 0 proc 71 115K 164K 166960K 568 0 subproc 72 4K 4K 166960K 74 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 29 0 in_multi 78 5K 6K 166960K 99 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 410 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 234 145K 160K 166960K 5345 0 UVM aobj 6 2K 2K 166960K 7 0 pinsyscall 44 88K 104K 166960K 1562 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 12 0 NDP 11 0K 1K 166960K 40 0 temp 48 9119K 9192K 166960K 22146 0 kqueue 14 22K 29K 166960K 76 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 44 0 40 1 0 1 1 0 8 0 rtentry 176 109 0 16 5 0 5 5 0 8 0 unpcb 144 169 0 150 1 0 1 1 0 8 0 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpcb 736 76 0 72 2 0 2 2 0 8 1 arp 136 19 0 3 1 0 1 1 0 8 0 inpcb 328 331 0 290 7 1 6 7 0 8 2 nd6 152 23 0 4 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 20 0 20 1 0 1 1 0 8 1 pppxif 1576 1 0 1 1 0 1 1 0 8 1 pfstscr 40 8 0 6 1 0 1 1 0 8 0 pffrag 232 5 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 9 0 5 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 0 5 5 0 8 5 pfosfpen 112 1428 0 1428 21 0 21 21 0 8 21 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 10 0 0 1 0 1 1 0 8 0 pfstitem 24 46 0 0 1 0 1 1 0 8 0 pfstkey 128 53 0 7 2 0 2 2 0 8 0 pfstate 448 51 0 5 6 0 6 6 0 8 0 pfrule 1360 29 0 23 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 433 0 62 26 0 26 26 0 8 0 art_table 40 434 0 62 5 0 5 5 0 8 0 art_node 32 109 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 64 20 0 10 1 0 1 1 0 8 0 shmpl 112 4 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2026 0 558 93 0 93 93 0 8 0 ffsino 296 2026 0 558 114 0 114 114 0 8 0 nchpl 144 2567 0 868 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 vnodes 216 2262 0 0 126 0 126 126 0 8 0 namei 1024 8219 0 8218 2 1 1 2 0 8 0 percpumem 16 72 0 23 1 0 1 1 0 8 0 kstatmem 264 55 0 30 3 0 3 3 0 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 8816 0 8815 4 3 1 3 1 8 0 plimitpl 152 57 0 38 1 0 1 1 0 8 0 sigapl 424 732 0 663 8 0 8 8 0 8 0 knotepl 120 762 0 0 24 0 24 24 0 8 0 kqueuepl 224 90 0 80 1 0 1 1 0 8 0 pipepl 344 138 0 111 3 0 3 3 0 8 0 fdescpl 528 695 0 663 3 0 3 3 0 8 0 filepl 160 3102 0 2779 15 1 14 14 0 8 0 lockfpl 104 105 0 99 1 0 1 1 0 8 0 lockfspl 48 46 0 42 1 0 1 1 0 8 0 sessionpl 144 32 0 23 1 0 1 1 0 8 0 pgrppl 48 41 0 24 1 0 1 1 0 8 0 ucredpl 104 391 0 377 1 0 1 1 0 8 0 zombiepl 144 664 0 663 1 0 1 1 0 8 0 processpl 1232 732 0 663 6 0 6 6 0 8 0 procpl 664 1160 0 1082 8 0 8 8 0 8 1 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 752 550 0 486 10 1 9 10 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 121 0 0 16 0 16 16 0 8 0 mcl2k 2048 67 0 0 9 0 9 9 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 260 0 0 17 0 17 17 0 8 0 bufpl 280 3076 0 105 213 0 213 213 0 8 0 anonpl 32 7664 0 0 62 0 62 62 0 246 0 amapchunkpl 152 15853 0 15379 29 1 28 28 0 158 9 amappl16 200 1675 0 1645 17 5 12 15 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 439 0 437 1 0 1 1 0 8 0 amappl13 176 124 0 110 1 0 1 1 0 8 0 amappl12 168 985 0 954 2 0 2 2 0 8 0 amappl11 160 6 0 6 2 2 0 1 0 8 0 amappl10 152 62 0 48 1 0 1 1 0 8 0 amappl9 144 310 0 309 1 0 1 1 0 8 0 amappl8 136 100 0 97 1 0 1 1 0 8 0 amappl7 128 183 0 169 1 0 1 1 0 8 0 amappl6 120 148 0 145 1 0 1 1 0 8 0 amappl5 112 96 0 86 1 0 1 1 0 8 0 amappl4 104 302 0 279 1 0 1 1 0 8 0 amappl3 96 3171 0 3056 4 0 4 4 0 8 1 amappl2 88 560 0 496 2 0 2 2 0 8 0 amappl1 80 11470 0 10840 16 1 15 15 0 8 0 amappl 88 4564 0 4404 5 0 5 5 0 92 0 uvmvnodes 80 106 0 0 3 0 3 3 0 8 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 6 0 1 1 0 1 1 0 8 0 uaddrrnd 24 695 0 663 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 695 0 663 1 0 1 1 0 8 0 vmmpekpl 168 7538 0 7504 2 0 2 2 0 8 0 vmmpepl 168 52083 0 50132 98 0 98 98 0 357 5 vmsppl 488 694 0 663 5 0 5 5 0 8 0 rwobjpl 80 17040 0 15949 28 0 28 28 0 8 3 pdppl 4096 1397 0 1326 101 28 73 85 0 8 2 pvpl 32 15224 0 0 123 0 123 123 0 265 0 pmappl 256 694 0 663 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 288 0 32 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83928ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:153 intr_handler(ffff80002e7866f0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83a3ae80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a3ae80) at __mp_lock+0x192 sys/kern/kern_lock.c:173 uvm_fault(fffffd806c1cf7b8,b1c385e6000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650 upageflttrap(ffff80002e786a90,b1c385e6000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002e786a90) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7d82c8e861b0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83928ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:153 intr_handler(ffff80002e7866f0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83a3ae80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a3ae80) at __mp_lock+0x192 sys/kern/kern_lock.c:173 uvm_fault(fffffd806c1cf7b8,b1c385e6000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650 upageflttrap(ffff80002e786a90,b1c385e6000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002e786a90) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7d82c8e861b0, count: -11 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:438 panic(ffffffff8349897d) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806bf83028,4000,fffffd80097fd340,ffff80003c3d47f8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80003c3d4860) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd8064c71478,ffff80003c3d49c0,ffff80003c3d49f0,ffff80003c3d48f0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c44a560,ffffff9c,200000000000,0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 syscall(ffff80003c3d4b70) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d4b70) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2edf6f734a0, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8349897d) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806bf83028,4000,fffffd80097fd340,ffff80003c3d47f8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80003c3d4860) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd8064c71478,ffff80003c3d49c0,ffff80003c3d49f0,ffff80003c3d48f0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c44a560,ffffff9c,200000000000,0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3149 syscall(ffff80003c3d4b70) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d4b70) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2edf6f734a0, count: -8