/panic: bad dir Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *499546 37791 0 0x1002000 0x4000000 1K syz-executor 312161 47911 0 0x2 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83392bf3) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800035bfb388,ffff800035bfb388,e1a0e7a0c009108e) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff800035bfb458,ffff800035bfb3f8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 unveil_find_cover(fffffd805c8f9b40,ffff80003c425c60) at unveil_find_cover+0x16d sys/kern/kern_unveil.c:277 unveil_start_relative(ffff80003c425c60,ffff800035bfb5c8,fffffd805c8f9b40) at unveil_start_relative+0x14b sys/kern/kern_unveil.c:606 namei(ffff800035bfb5c8) at namei+0x54a sys/kern/vfs_lookup.c:222 sys_unveil(ffff80003c425c60,ffff800035bfb7b0,ffff800035bfb700) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff800035bfb7b0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035bfb7b0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x983859e8500, count: 5 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: bad dir ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83392bf3) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800035bfb388,ffff800035bfb388,e1a0e7a0c009108e) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff800035bfb458,ffff800035bfb3f8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 unveil_find_cover(fffffd805c8f9b40,ffff80003c425c60) at unveil_find_cover+0x16d sys/kern/kern_unveil.c:277 unveil_start_relative(ffff80003c425c60,ffff800035bfb5c8,fffffd805c8f9b40) at unveil_start_relative+0x14b sys/kern/kern_unveil.c:606 namei(ffff800035bfb5c8) at namei+0x54a sys/kern/vfs_lookup.c:222 sys_unveil(ffff80003c425c60,ffff800035bfb7b0,ffff800035bfb700) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff800035bfb7b0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035bfb7b0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x983859e8500, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800035bfb1b0 rbx 0xffff8000299dedd7 rdx 0xffff80000147ee00 rcx 0xffff80003c425c60 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x59f0f95e878d4c77 r11 0xe81a45d00f64d468 r12 0xffff8000299debd8 r13 0 r14 0 r15 0x1 rip 0xffffffff82e245c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800035bfb1a0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=499546 pid=37791 tcnt=2 stat=onproc flags process=1002000 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c425c60 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a297c50,0xffff80002a296a70 process=0xffff80003c4dd860 user=0xffff800035bf6000, vmspace=0xfffffd806e37e1f0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 14002 97233 24624 0 2 0 syz-executor 37791 341765 98277 0 4 0x1082000 syz-executor *37791 499546 98277 0 7 0x5002000 syz-executor 7402 102399 1686 60929 2 0x10 syz-executor 7402 232094 1686 60929 3 0x4000090 sbwait syz-executor 7402 142784 1686 60929 3 0x4000090 fsleep syz-executor 7402 149872 1686 60929 3 0x4000090 fsleep syz-executor 89691 422072 67916 0 2 0 syz-executor 89691 382859 67916 0 3 0x4000080 fsleep syz-executor 27629 148484 52824 0 2 0 syz-executor 27629 376501 52824 0 3 0x4000080 sbwait syz-executor 33187 443276 2444 0 2 0 syz-executor 33187 90163 2444 0 3 0x4000080 fsleep syz-executor 33187 209369 2444 0 3 0x4000080 fsleep syz-executor 82995 308404 33355 0 3 0x3000 suspend syz-executor 82995 274401 33355 0 2 0x4081000 syz-executor 97988 231596 0 0 3 0x14200 bored sosplice 61002 507785 0 0 3 0x14200 acct acct 52824 203500 47911 0 3 0x82 nanoslp syz-executor 85022 5720 1 0 3 0x100083 ttyin getty 9662 175257 0 0 3 0x14280 nfsidl nfsio 8658 10335 0 0 3 0x14280 nfsidl nfsio 99046 477426 0 0 3 0x14280 nfsidl nfsio 32943 182833 0 0 3 0x14280 nfsidl nfsio 52459 420505 0 0 3 0x14280 nfsidl nfsio 73942 72303 0 0 3 0x14280 nfsidl nfsio 95025 301673 0 0 3 0x14280 nfsidl nfsio 83492 94567 0 0 3 0x14280 nfsidl nfsio 78223 291546 0 0 3 0x14280 nfsidl nfsio 72134 16656 0 0 3 0x14280 nfsidl nfsio 28948 384844 0 0 3 0x14280 nfsidl nfsio 936 299592 0 0 3 0x14280 nfsidl nfsio 43481 234307 0 0 3 0x14280 nfsidl nfsio 63982 306127 0 0 3 0x14280 nfsidl nfsio 65500 116916 0 0 3 0x14280 nfsidl nfsio 61060 240929 0 0 3 0x14280 nfsidl nfsio 36246 54600 0 0 3 0x14280 nfsidl nfsio 21243 75603 0 0 3 0x14280 nfsidl nfsio 42115 237638 0 0 3 0x14280 nfsidl nfsio 89560 330812 0 0 3 0x14280 nfsidl nfsio 67916 43056 47911 0 3 0x82 nanoslp syz-executor 2444 399420 47911 0 3 0x82 nanoslp syz-executor 98277 494304 47911 0 3 0x82 nanoslp syz-executor 33355 26378 47911 0 3 0x82 wait syz-executor 45162 189195 47911 0 3 0x82 nanoslp syz-executor 1686 475299 47911 0 3 0x82 nanoslp syz-executor 24624 72237 47911 0 2 0x2 syz-executor 47911 312161 30143 0 7 0x2 syz-executor 30143 361072 67281 0 3 0x10008a sigsusp ksh 67281 60214 71576 0 3 0x98 kqread sshd-session 71576 230204 66753 0 3 0x92 kqread sshd-session 66753 151528 1 0 3 0x88 kqread sshd 41865 259565 50409 74 3 0x1100092 bpf pflogd 50409 31843 1 0 3 0x80 sbwait pflogd 49072 226850 2855 73 3 0x1100090 kqread syslogd 2855 457475 1 0 3 0x100082 sbwait syslogd 91294 260789 1 0 3 0x100080 kqread resolvd 58731 250542 21945 77 3 0x100092 kqread dhcpleased 56718 21053 21945 77 3 0x100092 kqread dhcpleased 21945 298877 1 0 3 0x80 kqread dhcpleased 50617 269115 0 0 3 0x14200 bored smr 55051 299415 0 0 2 0x14200 zerothread 211 20354 0 0 3 0x14200 aiodoned aiodoned 35520 38246 0 0 3 0x14200 syncer update 93275 118136 0 0 3 0x14200 cleaner cleaner 92882 351237 0 0 3 0x14200 reaper reaper 76501 388098 0 0 3 0x14200 pgdaemon pagedaemon 98320 2610 0 0 3 0x14200 bored viomb 752 56182 0 0 3 0x40014200 acpi0 acpi0 1061 308045 0 0 3 0x40014200 idle1 88776 327490 0 0 3 0x14200 bored softnet3 22811 149215 0 0 3 0x14200 bored softnet2 20173 279703 0 0 3 0x14200 bored softnet1 95467 480689 0 0 2 0x14200 softnet0 8562 191916 0 0 3 0x14200 bored systqmp 56501 466394 0 0 3 0x14200 bored systq 93531 88829 0 0 3 0x14200 tmoslp softclockmp 67075 99596 0 0 3 0x40014200 tmoslp softclock 75986 482073 0 0 3 0x40014200 idle0 1 352121 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 37791 (syz-executor) thread 0xffff80003c425c60 (499546) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838f50e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2da sys/kern/kern_synch.c:366 #3 biowait+0xc1 sys/kern/vfs_bio.c:1242 #4 ffs_bufatoff+0x16f sys/ufs/ffs/ffs_subr.c:71 #5 ufs_lookup+0x548 sys/ufs/ufs/ufs_lookup.c:256 #6 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #7 unveil_find_cover+0x16d sys/kern/kern_unveil.c:277 #8 unveil_start_relative+0x14b sys/kern/kern_unveil.c:606 #9 namei+0x54a sys/kern/vfs_lookup.c:222 #10 sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 #11 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e450f40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #6 unveil_find_cover+0x133 sys/kern/kern_unveil.c:273 #7 unveil_start_relative+0x14b sys/kern/kern_unveil.c:606 #8 namei+0x54a sys/kern/vfs_lookup.c:222 #9 sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 Process 27629 (syz-executor) thread 0xffff80002a2962b0 (376501) exclusive rwlock sbufrcv r = 0 (0xffff8000014a1a98) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 sblock+0xb7 sys/kern/uipc_socket2.c:536 #3 soreceive+0x28e sys/kern/uipc_socket.c:866 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1072 #5 sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:963 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 82995 (syz-executor) thread 0xffff8000388067e8 (274401) exclusive rrwlock inode r = 0 (0xfffffd806ed591e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10203 11027K 11497K 166960K 12075 0 pcb 17 12K 12K 166960K 94 0 rtable 201 7K 7K 166960K 354 0 pf 35 17K 21K 166960K 142 0 ifaddr 43 7K 7K 166960K 63 0 ifgroup 55 2K 2K 166960K 88 0 sysctl 4 1K 9K 166960K 13 0 counters 68 36K 37K 166960K 96 0 ioctlops 0 0K 4K 166960K 1528 0 iov 1 4K 12K 166960K 24 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 85K 166960K 1751 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 13 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 626 0 sigio 0 0K 0K 166960K 5 0 proc 76 103K 127K 166960K 618 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 75 0 in_multi 99 7K 7K 166960K 128 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 441 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 250 168K 182K 166960K 7482 0 UVM aobj 24 2K 2K 166960K 24 0 pinsyscall 43 86K 99K 166960K 1766 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 25 0 NDP 12 0K 2K 166960K 41 0 temp 56 8679K 8743K 166960K 14087 0 kqueue 14 22K 32K 166960K 117 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 64 0 61 1 0 1 1 0 8 0 rtentry 176 122 0 35 5 0 5 5 0 8 0 unpcb 144 310 0 289 3 1 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 113 0 106 1 0 1 1 0 8 0 arp 128 15 0 5 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 328 415 0 405 2 0 2 2 0 8 0 nd6 144 23 0 3 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 9 0 9 2 1 1 1 0 8 1 pppxif 1504 1 0 1 1 1 0 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 6 0 2 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 pfstitem 24 48 0 13 1 0 1 1 0 8 0 pfstkey 128 48 0 13 2 0 2 2 0 8 0 pfstate 384 48 0 13 5 0 5 5 0 8 0 pfrule 1344 25 0 19 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 573 0 138 31 2 29 29 0 8 1 art_table 40 574 0 138 5 0 5 5 0 8 0 art_node 32 122 0 45 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 5 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 10 0 3 1 0 1 1 0 8 0 shmpl 112 21 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2456 0 946 95 0 95 95 0 8 0 ffsino 288 2456 0 946 109 0 109 109 0 8 0 nchpl 144 3384 0 1687 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 2757 0 0 57 0 57 57 0 8 0 vnodes 216 2757 0 0 154 0 154 154 0 8 0 namei 1024 10900 0 10898 2 1 1 2 0 8 0 percpumem 16 63 0 14 1 0 1 1 0 8 0 kstatmem 264 48 0 22 3 1 2 3 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 23755 0 23755 10 7 3 8 1 8 3 plimitpl 152 118 0 99 1 0 1 1 0 8 0 sigapl 424 945 0 873 10 1 9 9 0 8 0 knotepl 120 727 0 0 23 0 23 23 0 8 0 kqueuepl 224 166 0 156 2 1 1 2 0 8 0 pipepl 336 139 0 112 3 0 3 3 0 8 0 fdescpl 520 905 0 873 3 0 3 3 0 8 0 filepl 160 4580 0 4353 13 0 13 13 0 8 2 lockfpl 104 290 0 288 1 0 1 1 0 8 0 lockfspl 48 136 0 134 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 45 0 28 1 0 1 1 0 8 0 ucredpl 104 631 0 617 1 0 1 1 0 8 0 zombiepl 144 875 0 873 1 0 1 1 0 8 0 processpl 1240 945 0 873 6 0 6 6 0 8 0 procpl 656 1790 0 1709 8 0 8 8 0 8 0 sockpl 728 802 0 768 6 1 5 5 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 34 0 0 5 0 5 5 0 8 0 mtagpl 96 14 0 0 1 0 1 1 0 8 0 mbufpl 256 200 0 0 12 0 12 12 0 8 0 bufpl 280 11048 0 4906 439 0 439 439 0 8 0 anonpl 32 12005 0 0 97 0 97 97 0 246 0 amapchunkpl 152 23764 0 23227 31 3 28 28 0 158 5 amappl16 200 4935 0 4714 42 23 19 28 0 8 7 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 120 0 108 1 0 1 1 0 8 0 amappl13 176 6 0 6 2 1 1 1 0 8 1 amappl12 168 1589 0 1557 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 251 0 251 1 1 0 1 0 8 0 amappl8 136 30 0 28 1 0 1 1 0 8 0 amappl7 128 114 0 101 1 0 1 1 0 8 0 amappl6 120 190 0 186 1 0 1 1 0 8 0 amappl5 112 126 0 116 1 0 1 1 0 8 0 amappl4 104 326 0 306 1 0 1 1 0 8 0 amappl3 96 4487 0 4366 5 1 4 4 0 8 0 amappl2 88 673 0 610 2 0 2 2 0 8 0 amappl1 80 10588 0 9983 16 1 15 15 0 8 1 amappl 88 6669 0 6494 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 128 254 0 254 2 2 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 23 0 0 1 0 1 1 0 8 0 uaddrrnd 24 905 0 873 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 905 0 873 1 0 1 1 0 8 0 vmmpekpl 168 8852 0 8809 3 0 3 3 0 8 0 vmmpepl 168 65359 0 63126 111 0 111 111 0 357 9 vmsppl 480 904 0 873 6 1 5 5 0 8 1 rwobjpl 72 23648 0 19726 74 1 73 73 0 8 1 pdppl 4096 1818 0 1746 102 30 72 82 0 8 0 pvpl 32 21265 0 0 174 2 172 172 0 265 0 pmappl 256 904 0 873 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 390 0 36 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83823ff0) 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(ffffffff838f4ed8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838f4ed8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a2e5b70,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff838f4ed8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838f4ed8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a2e5cd0,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d malloc(30,7f,9) at malloc+0xb87 sys/kern/kern_malloc.c:348 dopselect(ffff80002a2ba7c8,35,7cf93468df40,0,0,ffff80002a2e6218,92525f114c3ba4de,ffff80002a2ba7c8) at dopselect+0xe8 sys/kern/sys_generic.c:615 sys_pselect(ffff80002a2ba7c8,ffff80002a2e6360,ffff80002a2e62b0) at sys_pselect+0x263 sys/kern/sys_generic.c:589 syscall(ffff80002a2e6360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2e6360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 end trace frame: 0xffff80002a2e63e0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83823ff0) 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(ffffffff838f4ed8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838f4ed8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a2e5b70,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff838f4ed8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838f4ed8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a2e5cd0,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d malloc(30,7f,9) at malloc+0xb87 sys/kern/kern_malloc.c:348 dopselect(ffff80002a2ba7c8,35,7cf93468df40,0,0,ffff80002a2e6218,92525f114c3ba4de,ffff80002a2ba7c8) at dopselect+0xe8 sys/kern/sys_generic.c:615 sys_pselect(ffff80002a2ba7c8,ffff80002a2e6360,ffff80002a2e62b0) at sys_pselect+0x263 sys/kern/sys_generic.c:589 syscall(ffff80002a2e6360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2e6360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cf93468def0, count: -15 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(ffffffff83392bf3) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800035bfb388,ffff800035bfb388,e1a0e7a0c009108e) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff800035bfb458,ffff800035bfb3f8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 unveil_find_cover(fffffd805c8f9b40,ffff80003c425c60) at unveil_find_cover+0x16d sys/kern/kern_unveil.c:277 unveil_start_relative(ffff80003c425c60,ffff800035bfb5c8,fffffd805c8f9b40) at unveil_start_relative+0x14b sys/kern/kern_unveil.c:606 namei(ffff800035bfb5c8) at namei+0x54a sys/kern/vfs_lookup.c:222 sys_unveil(ffff80003c425c60,ffff800035bfb7b0,ffff800035bfb700) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff800035bfb7b0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035bfb7b0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x983859e8500, count: 5 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83392bf3) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_dirbadentry(ffff800035bfb388,ffff800035bfb388,e1a0e7a0c009108e) at ufs_dirbadentry VOP_LOOKUP(fffffd800b039000,ffff800035bfb458,ffff800035bfb3f8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 unveil_find_cover(fffffd805c8f9b40,ffff80003c425c60) at unveil_find_cover+0x16d sys/kern/kern_unveil.c:277 unveil_start_relative(ffff80003c425c60,ffff800035bfb5c8,fffffd805c8f9b40) at unveil_start_relative+0x14b sys/kern/kern_unveil.c:606 namei(ffff800035bfb5c8) at namei+0x54a sys/kern/vfs_lookup.c:222 sys_unveil(ffff80003c425c60,ffff800035bfb7b0,ffff800035bfb700) at sys_unveil+0x329 sys/kern/vfs_syscalls.c:1009 syscall(ffff800035bfb7b0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035bfb7b0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x983859e8500, count: -10