uvm_fault(0xffffffff82c56c40, 0xffff8000204df004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx TID PID UID PRFLAGS PFLAGS CPU COMMAND * 31844 90977 0 0 0x4000000 0K syz-executor.6 ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd805b2b2c10,ffff80002e429418,ffff80002e429448) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002e4293e8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff80002e4293e8) at namei+0x55a sys/kern/vfs_lookup.c:250 vn_open(ffff80002e4293e8,60f,0) at vn_open+0x188 sys/kern/vfs_vnops.c:107 doopenat(ffff800024936858,ffffff9c,20000000,60e,0,ffff80002e4295c0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff80002e429640) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff80002e429640) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5557ba08e60, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xffffffff82c56c40, 0xffff8000204df004, 0, 1) -> d ddb{0}> trace ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd805b2b2c10,ffff80002e429418,ffff80002e429448) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002e4293e8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff80002e4293e8) at namei+0x55a sys/kern/vfs_lookup.c:250 vn_open(ffff80002e4293e8,60f,0) at vn_open+0x188 sys/kern/vfs_vnops.c:107 doopenat(ffff800024936858,ffffff9c,20000000,60e,0,ffff80002e4295c0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff80002e429640) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff80002e429640) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5557ba08e60, count: -8 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002e429050 rbx 0 rdx 0 rcx 0xffffffff rax 0xfffffd80711de5d8 r8 0xffffffffffffffff r9 0xfffffd807f7d7548 r10 0xad458aa394cb17af r11 0xb5d03eca1e3af9cb r12 0 r13 0 r14 0 r15 0xffff8000204df000 rip 0xffffffff8128065e ufs_lookup+0x4ce cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e428f50 ss 0x10 ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx ddb{0}> show proc PROC (syz-executor.6) pid=31844 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000211f42f8,0xffff8000212930b0 process=0xffff8000212e5938 user=0xffff80002e424000, vmspace=0xfffffd806b585528 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 87529 399228 51281 0 2 0 syz-executor.5 87529 410170 51281 0 2 0x4000000 syz-executor.5 87529 1807 51281 0 3 0x4000080 fsleep syz-executor.5 90977 36438 99042 0 2 0 syz-executor.6 *90977 31844 99042 0 7 0x4000000 syz-executor.6 14448 470038 62176 0 2 0 syz-executor.7 14448 136143 62176 0 3 0x4000080 fsleep syz-executor.7 88691 186126 24298 0 2 0 syz-executor.2 88691 458057 24298 0 3 0x4000080 fsleep syz-executor.2 62330 170893 80837 0 2 0x10 syz-executor.4 62330 212478 80837 0 3 0x4000090 fsleep syz-executor.4 46574 495276 90317 0 2 0 syz-executor.0 46574 466819 90317 0 3 0x4000080 fsleep syz-executor.0 62176 498814 43250 0 3 0x82 nanoslp syz-executor.7 99042 438438 43250 0 3 0x82 nanoslp syz-executor.6 78279 177992 0 0 3 0x14280 nfsidl nfsio 6449 102581 0 0 3 0x14280 nfsidl nfsio 78929 18439 0 0 3 0x14280 nfsidl nfsio 28645 398549 0 0 3 0x14280 nfsidl nfsio 81932 521546 0 0 3 0x14280 nfsidl nfsio 46128 49770 0 0 3 0x14280 nfsidl nfsio 79443 33394 0 0 3 0x14280 nfsidl nfsio 1469 392018 0 0 3 0x14280 nfsidl nfsio 37224 294729 0 0 3 0x14280 nfsidl nfsio 5684 482213 0 0 3 0x14280 nfsidl nfsio 15443 363646 0 0 3 0x14280 nfsidl nfsio 9210 293572 0 0 3 0x14280 nfsidl nfsio 42364 387244 0 0 3 0x14280 nfsidl nfsio 26158 1601 0 0 3 0x14280 nfsidl nfsio 47431 449576 0 0 3 0x14280 nfsidl nfsio 44538 449350 0 0 3 0x14280 nfsidl nfsio 66558 146715 0 0 3 0x14280 nfsidl nfsio 1777 351313 0 0 3 0x14280 nfsidl nfsio 87233 159648 0 0 3 0x14280 nfsidl nfsio 37595 483974 0 0 3 0x14280 nfsidl nfsio 24298 121256 43250 0 3 0x82 nanoslp syz-executor.2 80837 296245 43250 0 3 0x82 nanoslp syz-executor.4 39552 960 43250 0 2 0x2 syz-executor.1 90317 269385 43250 0 3 0x82 nanoslp syz-executor.0 433 297691 43250 0 3 0x82 piperd syz-executor.3 31972 474244 0 0 3 0x14200 bored sosplice 51281 188302 43250 0 3 0x82 nanoslp syz-executor.5 43250 287977 38825 0 3 0x82 wait syz-fuzzer 43250 342697 38825 0 3 0x4000082 nanoslp syz-fuzzer 43250 344572 38825 0 3 0x4000082 thrsleep syz-fuzzer 43250 126245 38825 0 3 0x4000082 wait syz-fuzzer 43250 100126 38825 0 3 0x4000082 thrsleep syz-fuzzer 43250 355429 38825 0 3 0x4000082 wait syz-fuzzer 43250 77602 38825 0 3 0x4000082 wait syz-fuzzer 43250 375463 38825 0 3 0x4000082 wait syz-fuzzer 43250 397041 38825 0 3 0x4000082 wait syz-fuzzer 43250 453875 38825 0 3 0x4000082 thrsleep syz-fuzzer 43250 437994 38825 0 3 0x4000082 thrsleep syz-fuzzer 43250 274129 38825 0 3 0x4000082 thrsleep syz-fuzzer 43250 57341 38825 0 3 0x4000082 thrsleep syz-fuzzer 43250 497161 38825 0 3 0x4000082 kqread syz-fuzzer 43250 37406 38825 0 3 0x4000082 wait syz-fuzzer 43250 440954 38825 0 3 0x4000082 wait syz-fuzzer 38825 122765 64686 0 3 0x10008a sigsusp ksh 64686 488618 88858 0 3 0x9a kqread sshd 10210 378956 1 0 3 0x100083 ttyopn getty 88858 378999 1 0 3 0x88 kqread sshd 58121 249840 10851 74 3 0x1100092 bpf pflogd 10851 34625 1 0 3 0x80 netio pflogd 99786 303402 66236 73 2 0x1100010 syslogd 66236 427732 1 0 3 0x100082 netio syslogd 84026 289253 1 0 3 0x100080 kqread resolvd 96252 16943 71933 77 3 0x100092 kqread dhcpleased 39047 115716 71933 77 3 0x100092 kqread dhcpleased 71933 430921 1 0 3 0x80 kqread dhcpleased 12239 96293 0 0 3 0x14200 bored smr 6382 415901 0 0 2 0x14200 zerothread 71030 418171 0 0 3 0x14200 aiodoned aiodoned 61972 283020 0 0 3 0x14200 syncer update 66637 140842 0 0 3 0x14200 cleaner cleaner 68413 421077 0 0 3 0x14200 reaper reaper 34981 278083 0 0 3 0x14200 pgdaemon pagedaemon 20475 32800 0 0 3 0x14200 bored viomb 91338 506110 0 0 3 0x40014200 acpi0 acpi0 7 490570 0 0 7 0x40014200 idle1 73875 333172 0 0 3 0x14200 bored softnet 41679 445364 0 0 3 0x14200 bored softnet 10825 150718 0 0 3 0x14200 bored softnet 78426 115431 0 0 3 0x14200 bored softnet 37909 99321 0 0 3 0x14200 bored systqmp 62746 356050 0 0 3 0x14200 bored systq 10563 333928 0 0 3 0x40014200 bored softclock 91354 148994 0 0 3 0x40014200 idle0 1 498663 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 90977 (syz-executor.6) thread 0xffff800024936858 (31844) exclusive rrwlock inode r = 0 (0xfffffd806e0aa3c8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 vn_open+0x188 sys/kern/vfs_vnops.c:107 #8 doopenat+0x26a sys/kern/vfs_syscalls.c:1127 #9 syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] #9 syscall+0x555 sys/arch/amd64/amd64/trap.c:626 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82dcd528) #0 witness_lock+0x44d #1 syscall+0x53d mi_syscall sys/sys/syscall_mi.h:112 [inline] #1 syscall+0x53d sys/arch/amd64/amd64/trap.c:626 #2 Xsyscall+0x128 Process 99786 (syslogd) thread 0xffff8000211bd880 (303402) exclusive rrwlock inode r = 0 (0xfffffd806e6b41b0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf5 sys/kern/vfs_syscalls.c:2935 #6 syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] #6 syscall+0x555 sys/arch/amd64/amd64/trap.c:626 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 6557K 6879K 78643K 17777 0 pcb 13 16K 18K 78643K 906 0 rtable 223 16K 16K 78643K 1076 0 ifaddr 85 26K 27K 78643K 439 0 sysctl 2 0K 0K 78643K 2 0 counters 60 35K 36K 78643K 336 0 ioctlops 0 0K 4K 78643K 2023 0 iov 0 0K 16K 78643K 3067 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1459 91K 91K 78643K 4524 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 46 0 VM map 2 1K 1K 78643K 2 0 sem 17 2K 3K 78643K 385 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 93K 78643K 4490 0 sigio 0 0K 0K 78643K 370 0 proc 71 91K 115K 78643K 1077 0 subproc 104 6K 6K 78643K 286 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 320 0 in_multi 85 5K 6K 78643K 392 0 ether_multi 1 0K 0K 78643K 39 0 mrt 1 0K 0K 78643K 35 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 73 334K 334K 78643K 73 0 exec 0 0K 1K 78643K 1163 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 369 91K 98K 78643K 33003 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 197 0 NDP 15 0K 2K 78643K 152 0 temp 141 5778K 6802K 78643K 51190 0 kqueue 12 18K 28K 78643K 376 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 289 0 286 3 2 1 3 0 8 0 rtentry 112 364 0 268 4 0 4 4 0 8 0 unpcb 144 5676 0 5661 41 38 3 8 0 8 2 syncache 296 18 0 18 5 5 0 1 0 8 0 tcpqe 32 76 0 76 4 4 0 1 0 8 0 tcpcb 776 1747 0 1743 58 57 1 11 0 8 0 arp 120 52 0 33 1 0 1 1 0 8 0 inpcb 368 6015 0 6007 61 54 7 13 0 8 6 nd6 48 79 0 58 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 22 0 14 1 0 1 1 0 8 0 mppekey 1024 9 0 9 3 3 0 1 0 8 0 ppxss 1256 97 0 97 6 6 0 1 0 8 0 pppxif 1456 14 0 14 5 5 0 1 0 8 0 pfstscr 40 69 0 69 2 2 0 1 0 8 0 pffrag 232 10 0 7 2 1 1 1 0 482 0 pffrnode 88 10 0 7 2 1 1 1 0 8 0 pffrent 40 16 0 13 2 1 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 pfanchor 1280 298 0 36 23 0 23 23 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstitem 24 196 0 68 1 0 1 1 0 8 0 pfstkey 128 334 0 206 5 0 5 5 0 8 0 pfstate 384 265 0 137 14 0 14 14 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 7 0 7 2 2 0 1 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 1851 0 1458 45 20 25 31 0 8 0 art_table 32 1853 0 1459 4 0 4 4 0 8 0 art_node 16 356 0 272 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 1 1 0 1 1 0 8 0 semupl 112 38 0 38 1 1 0 1 0 8 0 semapl 112 375 0 360 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8286 0 6835 92 0 92 92 0 8 0 ffsino 272 8286 0 6835 98 0 98 98 0 8 0 nchpl 144 15321 0 13675 63 0 63 63 0 8 0 rtmask 32 5 0 5 2 2 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 65673 0 65672 4 3 1 2 0 8 0 percpumem 16 181 0 138 1 0 1 1 0 8 0 vmpool 696 11 0 11 3 3 0 1 0 8 0 kstatmem 264 192 0 162 3 0 3 3 0 8 0 scsiplug 72 7 0 7 1 1 0 1 0 8 0 scxspl 216 40957 0 40957 18 17 1 8 0 8 1 plimitpl 152 354 0 338 1 0 1 1 0 8 0 sigapl 424 4801 0 4734 10 2 8 8 0 8 0 futexpl 64 46243 0 46238 1 0 1 1 0 8 0 knotepl 120 682 0 0 16 0 16 16 0 8 0 kqueuepl 216 1415 0 1407 34 31 3 8 0 8 2 pipepl 320 1804 0 1776 36 33 3 8 0 8 0 fdescpl 496 4762 0 4733 5 1 4 5 0 8 0 filepl 152 46741 0 46498 71 49 22 24 0 8 11 lockfpl 104 2199 0 2197 8 6 2 2 0 8 1 lockfspl 48 635 0 633 1 0 1 1 0 8 0 sessionpl 144 38 0 21 1 0 1 1 0 8 0 pgrppl 48 57 0 40 1 0 1 1 0 8 0 ucredpl 104 3303 0 3289 1 0 1 1 0 8 0 zombiepl 144 4734 0 4734 2 1 1 1 0 8 1 processpl 1072 4801 0 4734 5 0 5 5 0 8 0 procpl 696 13044 0 12955 15 5 10 10 0 8 1 srpgc 96 27 0 27 7 7 0 1 0 8 0 sosppl 168 58 0 58 9 9 0 1 0 8 0 sockpl 488 11988 0 11963 242 230 12 37 0 8 8 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 19 0 0 3 0 3 3 0 8 0 mcl12k 12288 21 0 0 2 0 2 2 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 485 0 0 60 1 59 60 0 8 0 mtagpl 96 480 0 0 12 0 12 12 0 8 0 mbufpl 256 1548 0 0 86 0 86 86 0 8 0 bufpl 288 11022 0 4697 452 0 452 452 0 8 0 anonpl 24 1016614 0 998108 148 11 137 139 0 186 0 amapchunkpl 152 91766 0 90915 58 22 36 43 0 158 0 amappl16 200 11671 0 11151 86 50 36 41 0 8 8 amappl15 192 37 0 36 1 0 1 1 0 8 0 amappl14 184 219 0 202 2 0 2 2 0 8 0 amappl13 176 7 0 7 2 2 0 1 0 8 0 amappl12 168 617 0 613 1 0 1 1 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 47 0 39 1 0 1 1 0 8 0 amappl9 144 967 0 966 1 0 1 1 0 8 0 amappl8 136 295 0 223 3 0 3 3 0 8 0 amappl7 128 189 0 163 2 0 2 2 0 8 0 amappl6 120 271 0 255 2 1 1 2 0 8 0 amappl5 112 233 0 224 1 0 1 1 0 8 0 amappl4 104 680 0 648 2 1 1 2 0 8 0 amappl3 96 13871 0 13810 2 0 2 2 0 8 0 amappl2 88 5420 0 5341 4 1 3 4 0 8 0 amappl1 80 110936 0 110075 29 10 19 28 0 8 0 amappl 88 32073 0 31859 7 0 7 7 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 4773 0 4744 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4773 0 4744 1 0 1 1 0 8 0 vmmpekpl 168 46194 0 46114 4 0 4 4 0 8 0 vmmpepl 168 451973 0 448986 224 79 145 159 0 357 8 vmsppl 440 4772 0 4744 6 2 4 5 0 8 0 rwobjpl 56 126357 0 118464 124 9 115 116 0 8 2 pdppl 4096 9553 0 9488 253 184 69 83 0 8 4 pvpl 32 1992329 0 1967931 387 152 235 365 0 265 10 pmappl 248 4772 0 4744 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1180 0 274 27 0 27 27 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281 VOP_LOOKUP(fffffd805b2b2c10,ffff80002e429418,ffff80002e429448) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002e4293e8) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 namei(ffff80002e4293e8) at namei+0x55a sys/kern/vfs_lookup.c:250 vn_open(ffff80002e4293e8,60f,0) at vn_open+0x188 sys/kern/vfs_vnops.c:107 doopenat(ffff800024936858,ffffff9c,20000000,60e,0,ffff80002e4295c0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff80002e429640) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff80002e429640) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5557ba08e60, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -5