panic: bad dir Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 436490 75315 0 0 0 0 syz-executor *288144 82556 60929 0x1010 0x4080000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80002f401008,ffff80002f401038) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002f400fd8) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80002f400fd8) at namei+0x7ca sys/kern/vfs_lookup.c:250 sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 change_dir sys/kern/vfs_syscalls.c:837 [inline] sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 sys/kern/vfs_syscalls.c:783 syscall(ffff80002f4011b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f4011b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa44043c7a00, count: 6 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(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80002f401008,ffff80002f401038) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002f400fd8) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80002f400fd8) at namei+0x7ca sys/kern/vfs_lookup.c:250 sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 change_dir sys/kern/vfs_syscalls.c:837 [inline] sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 sys/kern/vfs_syscalls.c:783 syscall(ffff80002f4011b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f4011b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa44043c7a00, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002f400c70 rbx 0xffff8000299eeddf rdx 0 rcx 0xffff80003742ea90 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf25f9a95d907826c r11 0xf9ef17adad2f18c5 r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff81a1edf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002f400c60 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=288144 pid=82556 tcnt=2 stat=onproc flags process=1010 proc=4080000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003742f788 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003742f788,0xffff80003742efd0 process=0xffff800034424020 user=0xffff80002f3fc000, vmspace=0xfffffd806ba4c018 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 75315 436490 29439 0 7 0 syz-executor 75315 494649 29439 0 2 0x4000000 syz-executor 50393 493993 79681 0 2 0 syz-executor 50393 22408 79681 0 3 0x4000080 fsleep syz-executor 9951 441121 62290 0 2 0 syz-executor 9951 177997 62290 0 2 0x4000000 syz-executor 9951 482205 62290 0 3 0x4000080 fsleep syz-executor 82556 213122 84572 60929 3 0x3010 suspend syz-executor *82556 288144 84572 60929 7 0x4081010 syz-executor 69131 79446 74323 0 2 0 syz-executor 69131 112064 74323 0 3 0x4000000 physio syz-executor 66976 18820 77277 0 2 0 syz-executor 66976 517833 77277 0 3 0x4000080 fsleep syz-executor 66976 139128 77277 0 3 0x4000080 fsleep syz-executor 65204 360885 0 0 3 0x14200 acct acct 80569 359118 0 0 3 0x14200 bored sosplice 62290 51391 63885 0 3 0x82 nanoslp syz-executor 24036 27064 63885 0 2 0x10000c82 syz-executor 74323 415773 63885 0 2 0xc82 syz-executor 84572 72106 63885 0 3 0x82 nanoslp syz-executor 79681 88109 63885 0 3 0x82 nanoslp syz-executor 77277 418689 63885 0 3 0x82 nanoslp syz-executor 29439 106492 63885 0 3 0x82 nanoslp syz-executor 34709 281430 63885 0 2 0x2 syz-executor 63885 79550 4618 0 3 0x82 kqread syz-executor 4618 310161 75197 0 3 0x10008a sigsusp ksh 75197 375975 59850 0 3 0x98 kqread sshd-session 59850 321451 42095 0 3 0x92 kqread sshd-session 61347 243590 1 0 3 0x100083 ttyopn getty 42095 297058 1 0 3 0x88 kqread sshd 68746 358245 22801 74 3 0x1100092 bpf pflogd 22801 44713 1 0 3 0x80 sbwait pflogd 60502 401833 75549 73 3 0x1100090 kqread syslogd 75549 40082 1 0 3 0x100082 sbwait syslogd 9653 124442 1 0 3 0x100080 kqread resolvd 69923 519620 13910 77 3 0x100092 kqread dhcpleased 23739 409833 13910 77 3 0x100092 kqread dhcpleased 13910 508665 1 0 3 0x80 kqread dhcpleased 62672 197262 0 0 3 0x14200 bored smr 47509 424819 0 0 2 0x14200 zerothread 73621 318388 0 0 3 0x14200 aiodoned aiodoned 99126 266783 0 0 2 0x14e00 update 76823 216785 0 0 3 0x14200 cleaner cleaner 24571 296090 0 0 3 0x14200 reaper reaper 23268 195283 0 0 3 0x14200 pgdaemon pagedaemon 40633 344287 0 0 3 0x14200 bored viomb 91074 363212 0 0 3 0x40014200 acpi0 acpi0 50870 198082 0 0 3 0x40014200 idle1 73359 229478 0 0 3 0x14200 bored softnet7 73590 12166 0 0 3 0x14200 bored softnet6 93777 332733 0 0 3 0x14200 bored softnet5 67443 296283 0 0 3 0x14200 bored softnet4 26389 504891 0 0 3 0x14200 bored softnet3 60090 247024 0 0 3 0x14200 bored softnet2 44636 86854 0 0 3 0x14200 bored softnet1 69847 341779 0 0 3 0x14200 bored softnet0 76153 296294 0 0 2 0x14200 systqmp 60055 262068 0 0 3 0x14200 bored systq 72071 438396 0 0 3 0x14200 tmoslp softclockmp 90645 43338 0 0 3 0x40014200 tmoslp softclock 32854 294208 0 0 3 0x40014200 idle0 1 56565 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 75315 (syz-executor) thread 0xffff800037431250 (436490) exclusive rwlock uobjlk r = 0 (0xfffffd806ba5edf0) #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:699 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #4 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806ba4c4e8) #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:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #7 recall_trap+0x8 Process 82556 (syz-executor) thread 0xffff80003742ea90 (288144) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83921c88) #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:367 #3 biowait+0xc6 sys/kern/vfs_bio.c:1242 #4 ffs_bufatoff+0x16f sys/ufs/ffs/ffs_subr.c:71 #5 ufs_lookup+0x58e sys/ufs/ufs/ufs_lookup.c:256 #6 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #7 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #8 namei+0x7ca sys/kern/vfs_lookup.c:250 #9 sys_chdir+0x88 change_dir sys/kern/vfs_syscalls.c:837 [inline] #9 sys_chdir+0x88 sys/kern/vfs_syscalls.c:783 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e4b9e80) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 sys_chdir+0x88 change_dir sys/kern/vfs_syscalls.c:837 [inline] #7 sys_chdir+0x88 sys/kern/vfs_syscalls.c:783 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 69131 (syz-executor) thread 0xffff800037431a18 (112064) shared rwlock vmmaplk r = 0 (0xfffffd806ba4c6d0) #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 uvm_vslock_device+0x149 sys/uvm/uvm_glue.c:173 #3 physio+0x257 sys/kern/kern_physio.c:139 #4 spec_write+0x11f sys/kern/spec_vnops.c:302 #5 VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 #6 vn_write+0x1d3 sys/kern/vfs_vnops.c:408 #7 dofilewritev+0x242 sys/kern/sys_generic.c:380 #8 sys_write+0xa2 sys/kern/sys_generic.c:300 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #10 Xsyscall+0x128 Process 34709 (syz-executor) thread 0xffff80002a2b94d8 (281430) exclusive rrwlock inode r = 0 (0xfffffd8062d3c6b0) #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+0xa3 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:3109 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cceed80) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 11143K 11183K 166960K 11677 0 pcb 17 14K 16K 166960K 182 0 rtable 219 10K 10K 166960K 422 0 pf 40 18K 20K 166960K 95 0 ifaddr 45 8K 8K 166960K 73 0 ifgroup 60 2K 2K 166960K 112 0 sysctl 2 1K 9K 166960K 9 0 counters 72 37K 38K 166960K 138 0 ioctlops 0 0K 5K 166960K 1677 0 iov 0 0K 17K 166960K 58 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 89K 166960K 1704 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 19 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 238K 166960K 518 0 sigio 0 0K 0K 166960K 8 0 proc 72 115K 163K 166960K 580 0 subproc 72 4K 4K 166960K 75 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 45 0 in_multi 102 7K 7K 166960K 118 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 6 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 408 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 159K 169K 166960K 6485 0 UVM aobj 39 2K 2K 166960K 39 0 pinsyscall 41 82K 102K 166960K 1583 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 33 0 NDP 13 0K 2K 166960K 47 0 temp 43 8643K 8715K 166960K 29035 0 kqueue 14 22K 29K 166960K 102 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 176 121 0 34 5 0 5 5 0 8 0 unpcb 144 450 0 431 4 3 1 4 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 89 0 83 1 0 1 1 0 8 0 arp 128 17 0 6 1 0 1 1 0 8 0 inpcb 328 427 0 413 9 7 2 7 0 8 0 nd6 144 18 0 0 1 0 1 1 0 8 0 pkpcb 40 35 0 35 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 28 0 27 3 2 1 1 0 8 0 pppxif 1504 3 0 2 2 1 1 1 0 8 0 pfstscr 40 4 0 4 2 2 0 1 0 8 0 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 0 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 40 0 2 1 0 1 1 0 8 0 pfstkey 128 46 0 8 2 0 2 2 0 8 0 pfstate 384 43 0 5 4 0 4 4 0 8 0 pfrule 1344 152 0 147 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 554 0 121 31 2 29 30 0 8 1 art_table 40 555 0 121 5 0 5 5 0 8 0 art_node 32 121 0 46 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 36 0 0 2 0 2 2 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2333 0 825 96 0 96 96 0 8 0 ffsino 296 2333 0 825 118 0 118 118 0 8 0 nchpl 144 3042 0 1346 64 0 64 64 0 8 0 rtmask 32 6 0 6 2 1 1 1 0 8 1 uvmvnodes 80 2590 0 0 53 0 53 53 0 8 0 vnodes 216 2590 0 0 144 0 144 144 0 8 0 namei 1024 10028 0 10026 4 3 1 2 0 8 0 percpumem 16 84 0 33 1 0 1 1 0 8 0 kstatmem 264 64 0 36 3 1 2 3 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 10708 0 10707 9 8 1 8 1 8 0 plimitpl 152 212 0 195 1 0 1 1 0 8 0 sigapl 424 810 0 755 7 0 7 7 0 8 0 knotepl 120 502 0 0 16 0 16 16 0 8 0 kqueuepl 224 160 0 148 1 0 1 1 0 8 0 pipepl 344 138 0 111 3 0 3 3 0 8 0 fdescpl 528 785 0 755 3 0 3 3 0 8 0 filepl 160 4329 0 4105 14 4 10 13 0 8 0 lockfpl 104 346 0 343 2 1 1 2 0 8 0 lockfspl 48 130 0 127 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 65 0 48 1 0 1 1 0 8 0 ucredpl 104 478 0 464 1 0 1 1 0 8 0 zombiepl 144 956 0 954 2 1 1 1 0 8 0 processpl 1248 810 0 755 5 0 5 5 0 8 0 procpl 664 1497 0 1434 7 0 7 7 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 752 984 0 948 14 9 5 11 0 8 1 mcl64k 65536 2 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 224 0 0 14 0 14 14 0 8 0 bufpl 280 3947 0 129 273 0 273 273 0 8 0 anonpl 32 8092 0 0 66 0 66 66 0 246 0 amapchunkpl 152 20789 0 20244 39 16 23 30 0 158 0 amappl16 200 3029 0 2954 26 21 5 15 0 8 0 amappl15 192 41 0 40 1 0 1 1 0 8 0 amappl14 184 111 0 99 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1423 0 1393 3 1 2 2 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 257 0 256 2 1 1 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 109 0 97 1 0 1 1 0 8 0 amappl6 120 177 0 174 1 0 1 1 0 8 0 amappl5 112 119 0 110 1 0 1 1 0 8 0 amappl4 104 293 0 272 1 0 1 1 0 8 0 amappl3 96 3828 0 3720 5 1 4 4 0 8 1 amappl2 88 629 0 565 2 0 2 2 0 8 0 amappl1 80 9583 0 8988 14 1 13 14 0 8 0 amappl 88 5755 0 5594 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 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 38 0 0 1 0 1 1 0 8 0 uaddrrnd 24 785 0 755 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 785 0 755 1 0 1 1 0 8 0 vmmpekpl 168 7866 0 7830 3 0 3 3 0 8 0 vmmpepl 168 55483 0 53505 104 13 91 101 0 357 0 vmsppl 488 784 0 755 5 1 4 5 0 8 0 rwobjpl 80 20091 0 16489 75 1 74 75 0 8 0 pdppl 4096 1578 0 1510 98 26 72 84 0 8 4 pvpl 32 16424 0 0 133 0 133 133 0 265 0 pmappl 256 784 0 755 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 277 0 36 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83825ff0) 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+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 intr_handler(ffff80003180f8f0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1c kd_curproc sys/dev/kcov.c:583 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1c sys/dev/kcov.c:153 __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 uvm_fault(fffffd806ba4c3e8,7acc4647000,0,2) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff80003180fc90,7acc4647000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003180fc90) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7258fae9ecc0, count: 2 ddb{0}> trace x86_ipi_db(ffffffff83825ff0) 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+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 intr_handler(ffff80003180f8f0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1c kd_curproc sys/dev/kcov.c:583 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1c sys/dev/kcov.c:153 __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83921a80) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 uvm_fault(fffffd806ba4c3e8,7acc4647000,0,2) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff80003180fc90,7acc4647000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003180fc90) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7258fae9ecc0, count: -13 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(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80002f401008,ffff80002f401038) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002f400fd8) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80002f400fd8) at namei+0x7ca sys/kern/vfs_lookup.c:250 sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 change_dir sys/kern/vfs_syscalls.c:837 [inline] sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 sys/kern/vfs_syscalls.c:783 syscall(ffff80002f4011b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f4011b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa44043c7a00, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832e683b) at panic+0x1e5 sys/kern/subr_prf.c:198 ufs_lookup() at ufs_lookup+0x1eda VOP_LOOKUP(fffffd800b039798,ffff80002f401008,ffff80002f401038) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002f400fd8) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff80002f400fd8) at namei+0x7ca sys/kern/vfs_lookup.c:250 sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 change_dir sys/kern/vfs_syscalls.c:837 [inline] sys_chdir(ffff80003742ea90,ffff80002f4011b0,ffff80002f401100) at sys_chdir+0x88 sys/kern/vfs_syscalls.c:783 syscall(ffff80002f4011b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f4011b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa44043c7a00, count: -9