panic: missing alias Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 335361 90951 0 0x2 0 1 syz-executor *267656 7867 0 0x2 0 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e56ec) at panic+0x1e5 sys/kern/subr_prf.c:198 vgonel(fffffd806024f6f8,ffff8000ffffcd00) at vgonel+0x663 vrecycle(fffffd806024f6f8,ffff8000ffffcd00) at vrecycle+0x7c sys/kern/vfs_subr.c:1136 ufs_inactive(ffff80002a2d6300) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107 VOP_INACTIVE(fffffd806024f6f8,ffff8000ffffcd00) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd806024f6f8) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8065f4ccd0,fffffd806024f6f8,ffff80002a2d6468) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffcd00,ffffff9c,7bf43c2f8140,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2d65e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2d65e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bf43c2f85f0, count: 4 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: missing alias ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e56ec) at panic+0x1e5 sys/kern/subr_prf.c:198 vgonel(fffffd806024f6f8,ffff8000ffffcd00) at vgonel+0x663 vrecycle(fffffd806024f6f8,ffff8000ffffcd00) at vrecycle+0x7c sys/kern/vfs_subr.c:1136 ufs_inactive(ffff80002a2d6300) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107 VOP_INACTIVE(fffffd806024f6f8,ffff8000ffffcd00) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd806024f6f8) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8065f4ccd0,fffffd806024f6f8,ffff80002a2d6468) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffcd00,ffffff9c,7bf43c2f8140,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2d65e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2d65e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bf43c2f85f0, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a2d6130 rbx 0xffffffff838fce07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff8000ffffcd00 rax 0xffffffff838fbff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x82c385e87677eede r11 0x866be5dc2fdb4539 r12 0xffffffff838fcc08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff81f37155 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a2d6120 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=267656 pid=7867 tcnt=1 stat=onproc flags process=2 proc=0 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffdc90,0xffff8000ffffd240 process=0xffff8000ffff1820 user=0xffff80002a2d1000, vmspace=0xfffffd800b0637a0 estcpu=36, cpticks=14, pctcpu=0.9, user=0, sys=14, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 92240 209755 6325 0 2 0 syz-executor 92240 376241 6325 0 3 0x4000080 fsleep syz-executor 76820 310550 62082 0 2 0 syz-executor 76820 272340 62082 0 3 0x4000080 semwait syz-executor 76820 328774 62082 0 2 0x4000000 syz-executor 6325 279684 80278 0 2 0xc82 syz-executor 90951 335361 80278 0 7 0x2 syz-executor 62082 32207 80278 0 2 0xc82 syz-executor 172 366886 80278 0 2 0x2 syz-executor 72039 350072 80278 0 2 0xc82 syz-executor 13808 130804 80278 0 2 0x2 syz-executor * 7867 267656 80278 0 7 0x2 syz-executor 93041 243896 80278 0 2 0xc82 syz-executor 80278 442169 48086 0 3 0x82 kqread syz-executor 48086 334173 90544 0 3 0x10008a sigsusp ksh 90544 217048 31424 0 3 0x98 kqread sshd-session 31424 89395 34378 0 3 0x92 kqread sshd-session 38286 205134 1 0 3 0x100083 ttyopn getty 34378 497276 1 0 3 0x88 kqread sshd 95080 70227 4028 74 3 0x1100092 bpf pflogd 4028 197137 1 0 3 0x80 sbwait pflogd 58026 358866 10583 73 3 0x1100090 kqread syslogd 10583 438540 1 0 3 0x100082 sbwait syslogd 69053 122179 1 0 3 0x100080 kqread resolvd 56972 165278 43137 77 3 0x100092 kqread dhcpleased 74870 198978 43137 77 3 0x100092 kqread dhcpleased 43137 36261 1 0 3 0x80 kqread dhcpleased 44792 522653 0 0 3 0x14200 bored smr 20441 125830 0 0 2 0x14200 zerothread 17517 190978 0 0 3 0x14200 aiodoned aiodoned 67433 230255 0 0 3 0x14200 syncer update 56911 295253 0 0 3 0x14200 cleaner cleaner 60640 407530 0 0 2 0x14200 reaper 83593 265283 0 0 3 0x14200 pgdaemon pagedaemon 52860 60051 0 0 3 0x14200 bored viomb 93033 230421 0 0 3 0x40014200 acpi0 acpi0 87996 71683 0 0 3 0x40014200 idle1 68510 346143 0 0 3 0x14200 bored softnet1 82303 70674 0 0 3 0x14200 bored softnet0 7141 324725 0 0 3 0x14200 bored systqmp 96922 493170 0 0 3 0x14200 bored systq 19625 410115 0 0 3 0x14200 tmoslp softclockmp 73598 208023 0 0 3 0x40014200 tmoslp softclock 71671 508535 0 0 3 0x40014200 idle0 1 281413 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 13808 (syz-executor) thread 0xffff8000ffffd230 (130804) exclusive rrwlock inode r = 0 (0xfffffd807878d240) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80688578e0) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #13 Xsyscall+0x128 Process 7867 (syz-executor) thread 0xffff8000ffffcd00 (267656) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8397da40) #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 getblk+0x197 sys/kern/vfs_bio.c:1013 #4 bread+0x45 bio_doread sys/kern/vfs_bio.c:418 [inline] #4 bread+0x45 sys/kern/vfs_bio.c:463 #5 ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91 #6 ufs_reclaim+0x10f sys/ufs/ufs/ufs_inode.c:137 #7 ffs_reclaim+0x43 sys/ufs/ffs/ffs_vnops.c:519 #8 VOP_RECLAIM+0x77 sys/kern/vfs_vops.c:512 #9 vclean+0x322 sys/kern/vfs_subr.c:1095 #10 vgonel+0xb0 sys/kern/vfs_subr.c:1185 #11 vrecycle+0x7c sys/kern/vfs_subr.c:1136 #12 ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107 #13 VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 #14 vput+0xe5 sys/kern/vfs_subr.c:789 #15 VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 #16 dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 #17 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #17 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #18 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80688571f0) #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 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #13 Xsyscall+0x128 Process 60640 (reaper) thread 0xffff8000ffffd9f8 (407530) exclusive rwlock kmmaplk r = 0 (0xffffffff83ad37d0) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1798 #4 km_free+0x87 sys/uvm/uvm_km.c:714 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1ca sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11064 12160K 12330K 166960K 12415 0 pcb 17 14K 16K 166960K 110 0 rtable 230 8K 9K 166960K 381 0 pf 36 18K 22K 166960K 70 0 ifaddr 43 7K 8K 166960K 57 0 ifgroup 55 2K 2K 166960K 77 0 sysctl 4 1K 9K 166960K 8 0 counters 70 37K 38K 166960K 90 0 ioctlops 0 0K 4K 166960K 1580 0 iov 0 0K 4K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1358 85K 86K 166960K 1552 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 93K 166960K 268 0 proc 72 115K 147K 166960K 561 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 21 0 in_multi 99 7K 7K 166960K 110 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 393 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 210 158K 178K 166960K 4338 0 UVM aobj 4 2K 2K 166960K 5 0 pinsyscall 39 78K 106K 166960K 1405 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 12 0K 2K 166960K 35 0 temp 71 9087K 9151K 166960K 9665 0 kqueue 13 20K 28K 166960K 46 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 41 1 0 1 1 0 8 0 rtentry 176 115 0 14 6 0 6 6 0 8 0 unpcb 144 297 0 280 6 5 1 6 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 97 0 93 7 6 1 7 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 278 0 270 12 10 2 12 0 8 0 nd6 152 25 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 7 0 7 1 0 1 1 0 8 1 pppxif 1576 2 0 2 1 1 0 1 0 8 0 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 3 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 pfrktable 1344 7 0 3 1 0 1 1 0 8 0 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 33 0 0 1 0 1 1 0 8 0 pfstkey 128 33 0 0 2 0 2 2 0 8 0 pfstate 448 32 0 0 4 0 4 4 0 8 0 pfrule 1360 23 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 498 0 47 31 0 31 31 0 8 1 art_table 40 499 0 47 5 0 5 5 0 8 0 art_node 32 115 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 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 2 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1823 0 362 93 0 93 93 0 8 0 ffsino 296 1823 0 362 114 0 114 114 0 8 0 nchpl 144 2190 0 493 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 1 0 1 0 8 0 vnodes 216 2044 0 0 114 0 114 114 0 8 0 namei 1024 6873 0 6873 2 1 1 2 0 8 1 percpumem 16 60 0 10 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 kstatmem 264 41 0 14 3 0 3 3 0 8 1 scxspl 216 7775 0 7775 5 4 1 3 1 8 1 plimitpl 152 41 0 24 1 0 1 1 0 8 0 sigapl 424 580 0 535 7 1 6 7 0 8 0 knotepl 120 583 0 0 18 0 18 18 0 8 0 kqueuepl 224 56 0 47 2 1 1 2 0 8 0 pipepl 344 133 0 106 3 0 3 3 0 8 0 fdescpl 528 564 0 536 3 0 3 3 0 8 0 filepl 160 2714 0 2495 20 7 13 18 0 8 2 lockfpl 104 188 0 186 2 1 1 2 0 8 0 lockfspl 48 93 0 91 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 34 0 17 1 0 1 1 0 8 0 ucredpl 104 217 0 204 1 0 1 1 0 8 0 zombiepl 144 566 0 563 1 0 1 1 0 8 0 processpl 1232 580 0 535 5 1 4 5 0 8 0 procpl 664 831 0 783 6 0 6 6 0 8 0 sockpl 752 623 0 595 17 13 4 17 0 8 0 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 110 0 0 14 0 14 14 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 159 0 0 10 0 10 10 0 8 0 bufpl 280 2865 0 105 198 0 198 198 0 8 0 anonpl 32 9616 0 0 78 0 78 78 0 246 0 amapchunkpl 152 19885 0 19487 45 20 25 45 0 158 4 amappl16 200 2396 0 2371 15 11 4 14 0 8 1 amappl15 192 19 0 19 1 1 0 1 0 8 0 amappl14 184 429 0 428 1 0 1 1 0 8 0 amappl13 176 129 0 117 1 0 1 1 0 8 0 amappl12 168 901 0 874 2 0 2 2 0 8 0 amappl11 160 62 0 62 1 1 0 1 0 8 0 amappl10 152 64 0 50 1 0 1 1 0 8 0 amappl9 144 281 0 281 1 1 0 1 0 8 0 amappl8 136 103 0 101 1 0 1 1 0 8 0 amappl7 128 145 0 132 1 0 1 1 0 8 0 amappl6 120 164 0 163 1 0 1 1 0 8 0 amappl5 112 110 0 99 1 0 1 1 0 8 0 amappl4 104 287 0 266 1 0 1 1 0 8 0 amappl3 96 2371 0 2278 4 0 4 4 0 8 0 amappl2 88 513 0 451 2 0 2 2 0 8 0 amappl1 80 9851 0 9254 16 3 13 16 0 8 0 amappl 88 3593 0 3455 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 4 0 1 1 0 1 1 0 8 0 uaddrrnd 24 564 0 536 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 564 0 536 1 0 1 1 0 8 0 vmmpekpl 168 6331 0 6295 3 0 3 3 0 8 0 vmmpepl 168 44121 0 42363 97 8 89 97 0 357 1 vmsppl 488 563 0 535 5 1 4 5 0 8 0 rwobjpl 80 15695 0 14682 27 4 23 27 0 8 0 pdppl 4096 1135 0 1070 99 28 71 85 0 8 6 pvpl 32 16768 0 0 136 0 136 136 0 265 0 pmappl 256 563 0 535 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 279 0 39 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e56ec) at panic+0x1e5 sys/kern/subr_prf.c:198 vgonel(fffffd806024f6f8,ffff8000ffffcd00) at vgonel+0x663 vrecycle(fffffd806024f6f8,ffff8000ffffcd00) at vrecycle+0x7c sys/kern/vfs_subr.c:1136 ufs_inactive(ffff80002a2d6300) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107 VOP_INACTIVE(fffffd806024f6f8,ffff8000ffffcd00) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffffd806024f6f8) at vput+0xe5 sys/kern/vfs_subr.c:789 VOP_REMOVE(fffffd8065f4ccd0,fffffd806024f6f8,ffff80002a2d6468) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff8000ffffcd00,ffffff9c,7bf43c2f8140,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1923 syscall(ffff80002a2d65e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2d65e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bf43c2f85f0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299adff0) 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(ffffffff8397d240) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff8397d240) at __mp_lock+0x192 sys/kern/kern_lock.c:173 syscall(ffff80002a36c4f0) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a36c4f0) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x798f09476160, count: 9 ddb{1}> trace x86_ipi_db(ffff8000299adff0) 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(ffffffff8397d240) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff8397d240) at __mp_lock+0x192 sys/kern/kern_lock.c:173 syscall(ffff80002a36c4f0) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a36c4f0) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x798f09476160, count: -6