uvm_fault(0xffffffff82d79298, 0xffff800022902004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_lookup+0x49b: movzwl 0x4(%r15,%rbx,1),%r14d TID PID UID PRFLAGS PFLAGS CPU COMMAND *239901 45876 0 0 0x4000000 1K syz-executor.0 176621 80866 0 0x14000 0x200 0 reaper ufs_lookup() at ufs_lookup+0x49b sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd80712ea7f0,ffff8000375bc828,ffff8000375bc858) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000375bc7f8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff8000375bc7f8) at namei+0x56a sys/kern/vfs_lookup.c:250 vn_open(ffff8000375bc7f8,70f,0) at vn_open+0x180 sys/kern/vfs_vnops.c:107 doopenat(ffff80002a230aa8,ffffff9c,20000080,70e,0,ffff8000375bc9b0) at doopenat+0x269 sys/kern/vfs_syscalls.c:1126 syscall(ffff8000375bca50) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000375bca50) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf82e24789b0, 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: uvm_fault(0xffffffff82d79298, 0xffff800022902004, 0, 1) -> d ddb{1}> trace ufs_lookup() at ufs_lookup+0x49b sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd80712ea7f0,ffff8000375bc828,ffff8000375bc858) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000375bc7f8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff8000375bc7f8) at namei+0x56a sys/kern/vfs_lookup.c:250 vn_open(ffff8000375bc7f8,70f,0) at vn_open+0x180 sys/kern/vfs_vnops.c:107 doopenat(ffff80002a230aa8,ffffff9c,20000080,70e,0,ffff8000375bc9b0) at doopenat+0x269 sys/kern/vfs_syscalls.c:1126 syscall(ffff8000375bca50) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000375bca50) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf82e24789b0, count: -8 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff8000375bc470 rbx 0 rdx 0 rcx 0xffffffff rax 0xfffffd8072527e70 r8 0xffffffffffffffff r9 0xfffffd807f7d7680 r10 0x984a363d83a26d7 r11 0x3fb284a47d4ba82b r12 0 r13 0xfffffd806e1c7aa0 r14 0 r15 0xffff800022902000 rip 0xffffffff81f25feb ufs_lookup+0x49b cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff8000375bc360 ss 0x10 ufs_lookup+0x49b: movzwl 0x4(%r15,%rbx,1),%r14d ddb{1}> show proc PROC (syz-executor.0) tid=239901 pid=45876 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=78, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a22f2c0,0xffff80002a219828 process=0xffff8000373a2818 user=0xffff8000375b7000, vmspace=0xfffffd805feed3b0 estcpu=36, cpticks=4, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 9356 496655 43307 0 2 0 syz-executor.5 9356 520667 43307 0 3 0x4000080 netio syz-executor.5 45876 152429 94559 0 2 0 syz-executor.0 *45876 239901 94559 0 7 0x4000000 syz-executor.0 45876 108536 94559 0 3 0x4000080 fsleep syz-executor.0 25375 376062 28263 0 2 0 syz-executor.4 25375 472321 28263 0 3 0x4000080 netio syz-executor.4 25375 159477 28263 0 2 0x4000000 syz-executor.4 29698 264324 6985 0 3 0x80 nanoslp syz-executor.6 29698 336564 6985 0 3 0x4000080 kqpoll syz-executor.6 29698 339725 6985 0 3 0x4000080 fsleep syz-executor.6 48799 32056 39880 0 3 0x80 nanoslp syz-executor.2 48799 338351 39880 0 3 0x4000080 ttyout syz-executor.2 48799 351833 39880 0 3 0x4000080 ttyout syz-executor.2 48799 266823 39880 0 3 0x4000080 fsleep syz-executor.2 31214 488588 67920 0 3 0x82 nanoslp syz-executor.7 28263 430534 67920 0 3 0x82 nanoslp syz-executor.4 6985 24292 67920 0 3 0x82 nanoslp syz-executor.6 39723 199038 67920 0 3 0x2 biowait syz-executor.1 99204 41995 67920 0 3 0x82 nanoslp syz-executor.3 39880 62683 67920 0 3 0x82 nanoslp syz-executor.2 43307 507251 67920 0 3 0x82 nanoslp syz-executor.5 94559 454742 67920 0 3 0x82 nanoslp syz-executor.0 90748 327221 1 0 3 0x18100083 ttyin getty 27096 29418 0 0 3 0x14280 nfsidl nfsio 82589 513585 0 0 3 0x14280 nfsidl nfsio 36346 440393 0 0 3 0x14280 nfsidl nfsio 18623 345435 0 0 3 0x14280 nfsidl nfsio 37784 385455 0 0 3 0x14280 nfsidl nfsio 18301 262494 0 0 3 0x14280 nfsidl nfsio 50972 251237 0 0 3 0x14280 nfsidl nfsio 28675 242121 0 0 3 0x14280 nfsidl nfsio 29394 143864 0 0 3 0x14280 nfsidl nfsio 16112 365489 0 0 3 0x14280 nfsidl nfsio 72241 113018 0 0 3 0x14280 nfsidl nfsio 37726 93751 0 0 3 0x14280 nfsidl nfsio 66379 61653 0 0 3 0x14280 nfsidl nfsio 52985 211046 0 0 3 0x14280 nfsidl nfsio 1948 498098 0 0 3 0x14280 nfsidl nfsio 91108 283288 0 0 3 0x14280 nfsidl nfsio 99583 214458 0 0 3 0x14280 nfsidl nfsio 51854 295361 0 0 3 0x14280 nfsidl nfsio 25770 215206 0 0 3 0x14280 nfsidl nfsio 52794 409835 0 0 3 0x14280 nfsidl nfsio 23283 335222 0 0 3 0x14200 bored sosplice 67920 113441 43346 0 3 0x1a000082 kqread syz-fuzzer 67920 45308 43346 0 3 0x1e000082 thrsleep syz-fuzzer 67920 376390 43346 0 3 0x1e000082 wait syz-fuzzer 67920 254164 43346 0 3 0x1e000082 wait syz-fuzzer 67920 289045 43346 0 3 0x1e000082 thrsleep syz-fuzzer 67920 449718 43346 0 3 0x1e000082 thrsleep syz-fuzzer 67920 247723 43346 0 3 0x1e000082 wait syz-fuzzer 67920 127353 43346 0 3 0x1e000082 thrsleep syz-fuzzer 67920 60923 43346 0 3 0x1e000082 thrsleep syz-fuzzer 67920 261363 43346 0 3 0x1e000082 wait syz-fuzzer 67920 107995 43346 0 3 0x1e000082 thrsleep syz-fuzzer 67920 370912 43346 0 3 0x1e000082 wait syz-fuzzer 67920 136899 43346 0 3 0x1e000082 wait syz-fuzzer 67920 439283 43346 0 3 0x1e000082 wait syz-fuzzer 67920 103665 43346 0 3 0x1e000082 wait syz-fuzzer 67920 306342 43346 0 3 0x1e000082 thrsleep syz-fuzzer 43346 241692 8003 0 3 0x810008a sigsusp ksh 8003 267407 71486 0 3 0x1800009a kqread sshd 71486 260170 1 0 3 0x18000088 kqread sshd 12846 185173 76908 74 3 0x19100092 bpf pflogd 76908 79513 1 0 3 0x18000080 netio pflogd 67865 333380 83472 73 3 0x19100090 kqread syslogd 83472 351891 1 0 3 0x18100082 netio syslogd 5543 351634 1 0 3 0x18100080 kqread resolvd 71345 189079 20112 77 3 0x18100092 kqread dhcpleased 59345 384990 20112 77 3 0x18100092 kqread dhcpleased 20112 446176 1 0 3 0x18000080 kqread dhcpleased 59432 356933 0 0 3 0x14200 bored smr 32596 280503 0 0 2 0x14200 zerothread 1620 256584 0 0 3 0x14200 aiodoned aiodoned 46765 107810 0 0 3 0x14200 syncer update 51036 239251 0 0 3 0x14200 cleaner cleaner 80866 176621 0 0 7 0x14200 reaper 59112 207064 0 0 3 0x14200 pgdaemon pagedaemon 88403 61851 0 0 3 0x14200 bored viomb 43060 373787 0 0 3 0x40014200 acpi0 acpi0 47170 302964 0 0 3 0x40014200 idle1 12595 94989 0 0 3 0x14200 bored softnet3 71991 424049 0 0 3 0x14200 bored softnet2 31325 16125 0 0 3 0x14200 bored softnet1 33546 433905 0 0 3 0x14200 bored softnet0 50224 195918 0 0 3 0x14200 bored systqmp 39507 92194 0 0 3 0x14200 bored systq 55893 304774 0 0 3 0x14200 tmoslp softclockmp 8230 73377 0 0 3 0x40014200 tmoslp softclock 6201 405916 0 0 3 0x40014200 idle0 1 5543 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 45876 (syz-executor.0) thread 0xffff80002a230aa8 (239901) exclusive rrwlock inode r = 0 (0xfffffd806e1c7b38) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8e sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 vn_open+0x180 sys/kern/vfs_vnops.c:107 #8 doopenat+0x269 sys/kern/vfs_syscalls.c:1126 #9 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #9 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d60cf8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 syscall+0x522 mi_syscall sys/sys/syscall_mi.h:183 [inline] #1 syscall+0x522 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 Process 39723 (syz-executor.1) thread 0xffff80002a22f568 (199038) exclusive rrwlock inode r = 0 (0xfffffd806e1bc3c8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8e sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xe6 sys/ufs/ufs/ufs_vnops.c:1117 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3077 #10 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e473a30) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8e sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3062 #8 syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x53b sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10233 6644K 8208K 166960K 48367 0 pcb 16 22K 26K 166960K 1892 0 rtable 210 6K 7K 166960K 4188 0 pf 34 9K 10K 166960K 528 0 ifaddr 46 17K 18K 166960K 459 0 ifgroup 59 2K 2K 166960K 826 0 sysctl 4 1K 1K 166960K 12 0 counters 66 36K 36K 166960K 490 0 ioctlops 0 0K 4K 166960K 2220 0 iov 1 2K 24K 166960K 2559 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1743 109K 110K 166960K 12861 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 164 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 2460 0 dirhash 12 2K 2K 166960K 84 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 15 53K 93K 166960K 18402 0 sigio 0 0K 0K 166960K 823 0 proc 70 91K 128K 166960K 2820 0 subproc 104 6K 6K 166960K 842 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 1226 0 in_multi 85 6K 7K 166960K 896 0 ether_multi 1 0K 0K 166960K 19 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 253 1129K 1129K 166960K 253 0 exec 0 0K 1K 166960K 2584 0 pfkey data 0 0K 1K 166960K 10 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 538 486K 487K 166960K 179590 0 UVM aobj 131 4K 4K 166960K 131 0 pinsyscall 26 52K 108K 166960K 3143 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 784 0 NDP 13 0K 1K 166960K 359 0 temp 75 6812K 7448K 166960K 164001 0 kqueue 12 18K 28K 166960K 1374 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 1103 0 1100 11 9 2 3 0 8 1 rtentry 112 1512 0 1417 6 2 4 4 0 8 0 unpcb 144 16190 0 16170 140 139 1 10 0 8 0 syncache 336 124 0 124 22 22 0 1 0 8 0 sackhl 24 8 0 8 2 2 0 1 0 8 0 tcpqe 32 406 0 406 17 17 0 1 0 8 0 tcpcb 808 5093 0 5082 126 121 5 13 0 8 3 arp 120 256 0 241 1 0 1 1 0 8 0 inpcb 392 13878 0 13862 249 243 6 22 0 8 3 nd6 136 206 0 187 1 0 1 1 0 8 0 pkpcb 40 45 0 45 12 11 1 1 0 8 1 kcovpl 48 64 0 56 1 0 1 1 0 8 0 ppxss 1168 71 0 71 18 18 0 1 0 8 0 pffrag 232 77 0 77 4 4 0 1 0 482 0 pffrnode 88 77 0 77 4 4 0 1 0 8 0 pffrent 40 288 0 288 3 3 0 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 24 562 0 543 1 0 1 1 0 8 0 pfstkey 128 563 0 544 4 1 3 3 0 8 1 pfstate 376 563 0 544 15 9 6 7 0 8 1 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 7 0 6 4 3 1 3 0 8 0 art_heap4 256 3771 0 3365 58 32 26 31 0 8 0 art_table 32 3778 0 3371 4 0 4 4 0 8 0 art_node 16 1334 0 1247 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semapl 112 2456 0 2446 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 65 0 48 3 0 3 3 0 8 0 dino2pl 256 25325 0 23740 100 0 100 100 0 8 0 ffsino 272 25325 0 23740 106 0 106 106 0 8 0 nchpl 144 49512 0 47774 67 1 66 67 0 8 0 uvmvnodes 80 6297 0 0 129 0 129 129 0 8 0 vnodes 216 6297 0 0 350 0 350 350 0 8 0 namei 1024 162963 0 162961 7 6 1 2 0 8 0 percpumem 16 259 0 212 1 0 1 1 0 8 0 vcpupl 2048 102 0 1 13 0 13 13 0 8 0 vmpool 696 114 0 13 11 1 10 10 0 8 0 kstatmem 264 450 0 424 2 0 2 2 0 8 0 scxspl 216 142206 0 142205 42 41 1 8 1 8 0 plimitpl 152 2373 0 2357 1 0 1 1 0 8 0 sigapl 424 18629 0 18560 16 8 8 9 0 8 0 futexpl 64 136385 0 136382 3 2 1 1 0 8 0 knotepl 120 820 0 0 11 0 11 11 0 8 0 kqueuepl 216 3680 0 3671 57 56 1 8 0 8 0 pipepl 320 2812 0 2784 70 62 8 8 0 8 5 fdescpl 496 18583 0 18555 14 9 5 5 0 8 0 filepl 152 109327 0 109076 183 165 18 21 0 8 6 lockfpl 104 5099 0 5096 12 10 2 4 0 8 1 lockfspl 48 2050 0 2047 2 1 1 2 0 8 0 sessionpl 144 81 0 64 1 0 1 1 0 8 0 pgrppl 48 291 0 274 1 0 1 1 0 8 0 ucredpl 104 15545 0 15530 1 0 1 1 0 8 0 zombiepl 144 18562 0 18560 3 2 1 1 0 8 0 processpl 1136 18629 0 18560 6 0 6 6 0 8 0 procpl 680 50265 0 50171 16 7 9 10 0 8 0 srpgc 96 89 0 89 26 26 0 1 0 8 0 sosppl 168 215 0 213 16 15 1 1 0 8 0 sockpl 584 31230 0 31191 325 319 6 21 0 8 1 mcl64k 65536 36 0 0 4 1 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 30 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 57 0 0 3 0 3 3 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 476 0 0 33 17 16 33 0 8 0 mtagpl 96 651 0 0 6 0 6 6 0 8 0 mbufpl 256 2639 0 0 123 1 122 122 0 8 0 bufpl 280 31606 0 25309 450 0 450 450 0 8 0 anonpl 24 1798232 0 1782400 201 85 116 150 0 186 0 amapchunkpl 152 564044 0 563085 102 60 42 51 0 158 0 amappl16 200 35464 0 34947 123 91 32 40 0 8 0 amappl15 192 173 0 170 1 0 1 1 0 8 0 amappl14 184 340 0 321 3 1 2 2 0 8 0 amappl13 176 15 0 14 1 0 1 1 0 8 0 amappl12 168 20110 0 20075 3 1 2 2 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 178 0 155 1 0 1 1 0 8 0 amappl9 144 329 0 329 37 36 1 1 0 8 1 amappl8 136 968 0 797 7 0 7 7 0 8 0 amappl7 128 146 0 133 1 0 1 1 0 8 0 amappl6 120 1254 0 1227 2 1 1 2 0 8 0 amappl5 112 708 0 691 1 0 1 1 0 8 0 amappl4 104 1263 0 1218 3 1 2 3 0 8 0 amappl3 96 110483 0 110393 3 0 3 3 0 8 0 amappl2 88 19812 0 19732 4 2 2 4 0 8 0 amappl1 80 76995 0 76455 23 10 13 22 0 8 0 amappl 88 178147 0 177861 8 0 8 8 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 18698 0 18569 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18698 0 18569 1 0 1 1 0 8 0 vmmpekpl 168 131057 0 130971 5 0 5 5 0 8 0 vmmpepl 168 1113835 0 1111170 514 372 142 156 0 357 0 vmsppl 448 18697 0 18568 17 2 15 15 0 8 0 rwobjpl 56 267444 0 259231 126 9 117 118 0 8 0 pdppl 4096 37403 0 37237 790 620 170 172 0 8 4 pvpl 32 48830 0 0 397 3 394 395 0 265 0 pmappl 248 18697 0 18568 13 4 9 9 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1778 0 1172 18 0 18 18 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82cc1ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002a152120,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff80002a152280,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1383 uvm_map_teardown(fffffd805feed1f0) at uvm_map_teardown+0x2f5 sys/uvm/uvm_map.c:2585 uvmspace_free(fffffd805feed1f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497 reaper(ffff80002a145d50) at reaper+0x19a sys/kern/kern_exit.c:463 end trace frame: 0x0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff82cc1ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002a152120,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d60af0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff80002a152280,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1383 uvm_map_teardown(fffffd805feed1f0) at uvm_map_teardown+0x2f5 sys/uvm/uvm_map.c:2585 uvmspace_free(fffffd805feed1f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497 reaper(ffff80002a145d50) at reaper+0x19a sys/kern/kern_exit.c:463 end trace frame: 0x0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at ufs_lookup+0x49b: movzwl 0x4(%r15,%rbx,1),%r14d ufs_lookup() at ufs_lookup+0x49b sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd80712ea7f0,ffff8000375bc828,ffff8000375bc858) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000375bc7f8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff8000375bc7f8) at namei+0x56a sys/kern/vfs_lookup.c:250 vn_open(ffff8000375bc7f8,70f,0) at vn_open+0x180 sys/kern/vfs_vnops.c:107 doopenat(ffff80002a230aa8,ffffff9c,20000080,70e,0,ffff8000375bc9b0) at doopenat+0x269 sys/kern/vfs_syscalls.c:1126 syscall(ffff8000375bca50) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000375bca50) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf82e24789b0, count: 7 ddb{1}> trace ufs_lookup() at ufs_lookup+0x49b sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd80712ea7f0,ffff8000375bc828,ffff8000375bc858) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000375bc7f8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff8000375bc7f8) at namei+0x56a sys/kern/vfs_lookup.c:250 vn_open(ffff8000375bc7f8,70f,0) at vn_open+0x180 sys/kern/vfs_vnops.c:107 doopenat(ffff80002a230aa8,ffffff9c,20000080,70e,0,ffff8000375bc9b0) at doopenat+0x269 sys/kern/vfs_syscalls.c:1126 syscall(ffff8000375bca50) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000375bca50) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf82e24789b0, count: -8