panic: ufsdirhash_lookup: bad offset in hash array Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *310755 77715 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d79bd) at panic+0x1e5 sys/kern/subr_prf.c:198 ufsdirhash_lookup(fffffd80711c05f0,ffff80002a264002,5,fffffd80711c06d4,ffff800031fe0110,0) at ufsdirhash_lookup+0xb9a sys/ufs/ufs/ufs_dirhash.c:342 ufs_lookup() at ufs_lookup+0xf76 sys/ufs/ufs/ufs_lookup.c:214 VOP_LOOKUP(fffffd806bde57f8,ffff800031fe03b8,ffff800031fe03e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800031fe0388) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff800031fe0388) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a27a7e0,4,200000000040,3,200000000280) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3004 syscall(ffff800031fe0630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fe0630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a9fc8c83f0, 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: ufsdirhash_lookup: bad offset in hash array ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d79bd) at panic+0x1e5 sys/kern/subr_prf.c:198 ufsdirhash_lookup(fffffd80711c05f0,ffff80002a264002,5,fffffd80711c06d4,ffff800031fe0110,0) at ufsdirhash_lookup+0xb9a sys/ufs/ufs/ufs_dirhash.c:342 ufs_lookup() at ufs_lookup+0xf76 sys/ufs/ufs/ufs_lookup.c:214 VOP_LOOKUP(fffffd806bde57f8,ffff800031fe03b8,ffff800031fe03e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800031fe0388) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff800031fe0388) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a27a7e0,4,200000000040,3,200000000280) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3004 syscall(ffff800031fe0630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fe0630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a9fc8c83f0, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800031fdff30 rbx 0xffff8000299eee07 rdx 0xffff800001484240 rcx 0xffff80002a27a7e0 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8d8b309037c8adf7 r11 0xbd65147a3237341e r12 0xffff8000299eec08 r13 0 r14 0 r15 0x1 rip 0xffffffff82ea1115 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800031fdff20 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=310755 pid=77715 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=71, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffd6fb8,0xffff8000fffecd28 process=0xffff8000ffff0018 user=0xffff800031fdb000, vmspace=0xfffffd806c91f7c0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77715 438562 91658 0 2 0 syz-executor *77715 310755 91658 0 7 0x4000000 syz-executor 93892 375401 31927 0 2 0 syz-executor 93892 268307 31927 0 3 0x4000080 fsleep syz-executor 39969 364639 41147 0 2 0 syz-executor 39969 225264 41147 0 3 0x4000080 fsleep syz-executor 39969 40330 41147 0 3 0x4000080 fsleep syz-executor 72205 227675 15363 0 2 0x3000 syz-executor 70106 411065 95918 0 2 0 syz-executor 70106 186347 95918 0 2 0x4000000 syz-executor 23613 178538 30272 0 2 0xc80 syz-executor 23613 80122 30272 0 3 0x4000000 smrbar syz-executor 91658 107835 64887 0 2 0xc82 syz-executor 31927 70392 64887 0 2 0xc82 syz-executor 81782 316618 10907 0 3 0x100082 sbwait arp 10907 307217 80866 0 3 0x10008a sigsusp sh 15363 90189 64887 0 2 0xc82 syz-executor 80866 356525 64887 0 3 0x82 wait syz-executor 41147 520353 64887 0 3 0x82 nanoslp syz-executor 30272 339607 64887 0 2 0xc82 syz-executor 95918 426936 64887 0 2 0xc82 syz-executor 29087 488998 64887 0 2 0xc82 syz-executor 64887 212638 69028 0 3 0x82 kqread syz-executor 69028 51196 32794 0 3 0x10008a sigsusp ksh 32794 482445 66966 0 3 0x98 kqread sshd-session 66966 494509 83328 0 3 0x92 kqread sshd-session 6034 148473 1 0 3 0x100083 ttyopn getty 83328 356566 1 0 3 0x88 kqread sshd 78713 416320 23181 74 3 0x1100092 bpf pflogd 23181 224989 1 0 3 0x80 sbwait pflogd 53362 84571 94961 73 3 0x1100090 kqread syslogd 94961 511392 1 0 3 0x100082 sbwait syslogd 60941 421983 1 0 3 0x100080 kqread resolvd 95158 429653 71853 77 3 0x100092 kqread dhcpleased 14560 352206 71853 77 3 0x100092 kqread dhcpleased 71853 190050 1 0 3 0x80 kqread dhcpleased 85590 474008 0 0 2 0x40014200 smr 52407 423208 0 0 3 0x14200 pgzero zerothread 45786 115001 0 0 3 0x14200 aiodoned aiodoned 91225 199649 0 0 3 0x14200 syncer update 88906 506806 0 0 3 0x14200 cleaner cleaner 7204 170903 0 0 2 0x14200 reaper 49785 354007 0 0 3 0x14200 pgdaemon pagedaemon 28278 194514 0 0 3 0x14200 bored viomb 11440 325225 0 0 3 0x40014200 acpi0 acpi0 12378 486782 0 0 3 0x40014200 idle1 64525 55629 0 0 3 0x14200 bored softnet1 75829 139011 0 0 3 0x14200 bored softnet0 33792 502887 0 0 3 0x14200 bored systqmp 55355 76207 0 0 3 0x14200 bored systq 66105 435560 0 0 3 0x14200 tmoslp softclockmp 57442 291403 0 0 3 0x40014200 tmoslp softclock 81886 309458 0 0 3 0x40014200 idle0 1 470181 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &(curpg)->mdpage.pv_mtx r = 0 (0xfffffd80094814d0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pmap_remove_ptes+0x29f pmap_remove_pv sys/arch/amd64/amd64/pmap.c:-1 [inline] #3 pmap_remove_ptes+0x29f sys/arch/amd64/amd64/pmap.c:1711 #4 pmap_do_remove+0x589 sys/arch/amd64/amd64/pmap.c:1920 #5 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863 #6 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #6 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2486 #7 exit1+0x6fc sys/kern/kern_exit.c:260 #8 sys_exit+0x1a sys/kern/kern_exit.c:-1 #9 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c91e810) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #3 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1824 #4 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863 #5 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #5 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2486 #6 exit1+0x6fc sys/kern/kern_exit.c:260 #7 sys_exit+0x1a sys/kern/kern_exit.c:-1 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 77715 (syz-executor) thread 0xffff80002a27a7e0 (310755) exclusive rrwlock inode r = 0 (0xfffffd80711c0690) #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 dorenameat+0x144 sys/kern/vfs_syscalls.c:3004 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83962370) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:775 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10206 11021K 11849K 166960K 11945 0 pcb 17 14K 16K 166960K 193 0 rtable 159 7K 8K 166960K 489 0 pf 36 18K 19K 166960K 81 0 ifaddr 34 5K 7K 166960K 72 0 ifgroup 59 2K 3K 166960K 109 0 sysctl 3 1K 9K 166960K 13 0 counters 72 37K 38K 166960K 118 0 ioctlops 0 0K 4K 166960K 1621 0 iov 0 0K 16K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1367 86K 86K 166960K 1892 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 63 11K 12K 166960K 600 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 114K 166960K 574 0 sigio 1 0K 0K 166960K 12 0 proc 72 115K 164K 166960K 636 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 42 0 in_multi 57 4K 6K 166960K 131 0 ether_multi 1 0K 0K 166960K 3 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 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 455 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 257 171K 191K 166960K 6988 0 UVM aobj 18 6K 6K 166960K 18 0 pinsyscall 44 88K 109K 166960K 1734 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 1K 166960K 55 0 NDP 12 0K 1K 166960K 45 0 temp 52 8673K 8743K 166960K 35280 0 kqueue 15 24K 28K 166960K 107 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 68 0 64 1 0 1 1 0 8 0 rtentry 176 144 0 83 5 0 5 5 0 8 0 unpcb 144 295 0 277 4 2 2 4 0 8 1 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 171 0 164 7 3 4 4 0 8 3 arp 136 24 0 12 1 0 1 1 0 8 0 inpcb 328 579 0 567 10 3 7 7 0 8 5 nd6 152 28 0 16 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 15 0 14 2 1 1 1 0 8 0 pppxif 1504 4 0 3 2 1 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 2 0 1 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 5 0 5 1 0 1 1 0 8 1 pfstitem 24 45 0 3 1 0 1 1 0 8 0 pfstkey 128 45 0 3 2 0 2 2 0 8 0 pfstate 448 45 0 3 5 0 5 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 621 0 342 28 5 23 28 0 8 2 art_table 40 623 0 342 5 1 4 5 0 8 0 art_node 32 144 0 90 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 13 0 0 1 0 1 1 0 8 0 dirhash 1024 216 0 182 5 0 5 5 0 8 0 dino2pl 256 2445 0 934 95 0 95 95 0 8 0 ffsino 296 2445 0 934 117 0 117 117 0 8 0 nchpl 144 3204 0 1501 64 0 64 64 0 8 0 rtmask 32 3 0 3 1 0 1 1 0 8 1 vnodes 216 2806 0 0 156 0 156 156 0 8 0 namei 1024 10473 0 10471 1 0 1 1 0 8 0 percpumem 16 74 0 23 1 0 1 1 0 8 0 vcpupl 3968 2 0 0 1 0 1 1 0 8 0 vmpool 840 2 0 0 1 0 1 1 0 8 0 kstatmem 264 56 0 28 3 0 3 3 0 8 1 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 19243 0 19243 8 4 4 8 1 8 4 plimitpl 152 85 0 68 1 0 1 1 0 8 0 sigapl 424 871 0 822 7 0 7 7 0 8 0 knotepl 120 666 0 0 21 0 21 21 0 8 0 kqueuepl 224 158 0 145 1 0 1 1 0 8 0 pipepl 344 158 0 130 3 0 3 3 0 8 0 fdescpl 528 855 0 823 3 0 3 3 0 8 0 filepl 160 4625 0 4399 15 2 13 15 0 8 2 lockfpl 104 442 0 440 2 1 1 2 0 8 0 lockfspl 48 129 0 127 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 45 0 28 1 0 1 1 0 8 0 ucredpl 104 797 0 784 1 0 1 1 0 8 0 zombiepl 144 824 0 822 1 0 1 1 0 8 0 processpl 1232 871 0 822 5 0 5 5 0 8 0 procpl 664 1616 0 1560 6 0 6 6 0 8 0 sosppl 176 2 0 2 2 1 1 1 0 8 1 sockpl 752 1061 0 1027 11 1 10 11 0 8 6 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k 2048 34 0 0 5 0 5 5 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 185 0 0 12 0 12 12 0 8 0 bufpl 280 7900 0 1763 439 0 439 439 0 8 0 anonpl 32 9123 0 0 74 0 74 74 0 246 0 amapchunkpl 152 22810 0 22283 34 1 33 33 0 158 10 amappl16 200 3627 0 3401 18 3 15 15 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 6 0 5 1 0 1 1 0 8 0 amappl13 176 447 0 445 1 0 1 1 0 8 0 amappl12 168 1220 0 1176 3 0 3 3 0 8 0 amappl11 160 3 0 3 1 1 0 1 0 8 0 amappl10 152 79 0 65 1 0 1 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 126 0 124 1 0 1 1 0 8 0 amappl7 128 94 0 93 1 0 1 1 0 8 0 amappl6 120 309 0 294 1 0 1 1 0 8 0 amappl5 112 80 0 69 1 0 1 1 0 8 0 amappl4 104 439 0 408 1 0 1 1 0 8 0 amappl3 96 3774 0 3674 3 0 3 3 0 8 0 amappl2 88 955 0 877 2 0 2 2 0 8 0 amappl1 80 10837 0 10219 14 0 14 14 0 8 0 amappl 88 6160 0 5987 5 0 5 5 0 92 0 uvmvnodes 80 114 0 0 3 0 3 3 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 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 128 254 0 254 2 1 1 1 0 8 1 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 17 0 0 1 0 1 1 0 8 0 uaddrrnd 24 855 0 823 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 855 0 823 1 0 1 1 0 8 0 vmmpekpl 168 8502 0 8456 3 0 3 3 0 8 0 vmmpepl 168 61597 0 59411 99 1 98 98 0 357 0 vmsppl 488 854 0 822 5 0 5 5 0 8 0 rwobjpl 80 19854 0 18552 28 0 28 28 0 8 0 pdppl 4096 1722 0 1646 104 28 76 88 0 8 0 pvpl 32 19362 0 0 157 0 157 157 0 265 0 pmappl 256 856 0 822 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 292 0 42 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837eaff0) 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_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x1e kd_curproc sys/dev/kcov.c:583 [inline] __sanitizer_cov_trace_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x1e sys/dev/kcov.c:230 _rb_remove(ffffffff836aca20,fffffd800478c008,fffffd8004acb800) at _rb_remove+0x332 rbe_remove sys/kern/subr_tree.c:383 [inline] _rb_remove(ffffffff836aca20,fffffd800478c008,fffffd8004acb800) at _rb_remove+0x332 sys/kern/subr_tree.c:395 uvm_pmr_insert_addr(fffffd800478c000,fffffd8004acb6b0,0) at uvm_pmr_insert_addr+0x151 sys/uvm/uvm_pmemrange.c:431 uvm_pmr_freepages(fffffd8004acb6b0,1) at uvm_pmr_freepages+0x2d1 uvm_pmr_insert sys/uvm/uvm_pmemrange.c:492 [inline] uvm_pmr_freepages(fffffd8004acb6b0,1) at uvm_pmr_freepages+0x2d1 sys/uvm/uvm_pmemrange.c:1331 uvm_anfree_list(fffffd805fd392f0,0) at uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 amap_wipeout(fffffd806bd65a58) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff8000363ee720,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806c91f9a8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff8000fffd7250,b,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff8000fffd7250,ffff8000363ee8f0,ffff8000363ee840) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000363ee8f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000363ee8f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 end trace frame: 0xffff8000363ee970, count: 0 ddb{0}> trace x86_ipi_db(ffffffff837eaff0) 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_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x1e kd_curproc sys/dev/kcov.c:583 [inline] __sanitizer_cov_trace_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x1e sys/dev/kcov.c:230 _rb_remove(ffffffff836aca20,fffffd800478c008,fffffd8004acb800) at _rb_remove+0x332 rbe_remove sys/kern/subr_tree.c:383 [inline] _rb_remove(ffffffff836aca20,fffffd800478c008,fffffd8004acb800) at _rb_remove+0x332 sys/kern/subr_tree.c:395 uvm_pmr_insert_addr(fffffd800478c000,fffffd8004acb6b0,0) at uvm_pmr_insert_addr+0x151 sys/uvm/uvm_pmemrange.c:431 uvm_pmr_freepages(fffffd8004acb6b0,1) at uvm_pmr_freepages+0x2d1 uvm_pmr_insert sys/uvm/uvm_pmemrange.c:492 [inline] uvm_pmr_freepages(fffffd8004acb6b0,1) at uvm_pmr_freepages+0x2d1 sys/uvm/uvm_pmemrange.c:1331 uvm_anfree_list(fffffd805fd392f0,0) at uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 amap_wipeout(fffffd806bd65a58) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff8000363ee720,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806c91f9a8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff8000fffd7250,b,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff8000fffd7250,ffff8000363ee8f0,ffff8000363ee840) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000363ee8f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000363ee8f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b245c5c4410, 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(ffffffff833d79bd) at panic+0x1e5 sys/kern/subr_prf.c:198 ufsdirhash_lookup(fffffd80711c05f0,ffff80002a264002,5,fffffd80711c06d4,ffff800031fe0110,0) at ufsdirhash_lookup+0xb9a sys/ufs/ufs/ufs_dirhash.c:342 ufs_lookup() at ufs_lookup+0xf76 sys/ufs/ufs/ufs_lookup.c:214 VOP_LOOKUP(fffffd806bde57f8,ffff800031fe03b8,ffff800031fe03e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800031fe0388) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff800031fe0388) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a27a7e0,4,200000000040,3,200000000280) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3004 syscall(ffff800031fe0630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fe0630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a9fc8c83f0, count: 5 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d79bd) at panic+0x1e5 sys/kern/subr_prf.c:198 ufsdirhash_lookup(fffffd80711c05f0,ffff80002a264002,5,fffffd80711c06d4,ffff800031fe0110,0) at ufsdirhash_lookup+0xb9a sys/ufs/ufs/ufs_dirhash.c:342 ufs_lookup() at ufs_lookup+0xf76 sys/ufs/ufs/ufs_lookup.c:214 VOP_LOOKUP(fffffd806bde57f8,ffff800031fe03b8,ffff800031fe03e8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800031fe0388) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 namei(ffff800031fe0388) at namei+0x7ca sys/kern/vfs_lookup.c:250 dorenameat(ffff80002a27a7e0,4,200000000040,3,200000000280) at dorenameat+0x144 sys/kern/vfs_syscalls.c:3004 syscall(ffff800031fe0630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fe0630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a9fc8c83f0, count: -10