uvm_fault(0xfffffd8069bb93b8, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtrequest+0x8e1: movzbl 0(%r14),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND * 76508 85679 0 0 0x4000000 0 syz-executor.6 80354 34991 0 0 0x4000000 1 syz-executor.5 rtrequest(1,ffff80002b1b12f8,0,ffff80002b1b1268,0) at rtrequest+0x8e1 sys/net/route.c:941 rtm_output(ffff800000d5d400,ffff80002b1b13a0,ffff80002b1b12f8,0,0) at rtm_output+0x5f7 sys/net/rtsock.c:958 route_output(fffffd807e90c200,fffffd8073346bb8) at route_output+0x6b3 sys/net/rtsock.c:863 route_send(fffffd8073346bb8,fffffd807e90c200,0,0) at route_send+0x8f sys/net/rtsock.c:339 sosend(fffffd8073346bb8,0,ffff80002b1b1560,0,0,0) at sosend+0x66d sendit(ffff8000212d4558,3,ffff80002b1b1660,0,ffff80002b1b1740) at sendit+0x65d sys/kern/uipc_syscalls.c:786 sys_sendto(ffff8000212d4558,ffff80002b1b16f0,ffff80002b1b1740) at sys_sendto+0x84 sys/kern/uipc_syscalls.c:564 syscall(ffff80002b1b17c0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002b1b17c0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8bed6ee4720, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd8069bb93b8, 0x0, 0, 1) -> e ddb{0}> trace rtrequest(1,ffff80002b1b12f8,0,ffff80002b1b1268,0) at rtrequest+0x8e1 sys/net/route.c:941 rtm_output(ffff800000d5d400,ffff80002b1b13a0,ffff80002b1b12f8,0,0) at rtm_output+0x5f7 sys/net/rtsock.c:958 route_output(fffffd807e90c200,fffffd8073346bb8) at route_output+0x6b3 sys/net/rtsock.c:863 route_send(fffffd8073346bb8,fffffd807e90c200,0,0) at route_send+0x8f sys/net/rtsock.c:339 sosend(fffffd8073346bb8,0,ffff80002b1b1560,0,0,0) at sosend+0x66d sendit(ffff8000212d4558,3,ffff80002b1b1660,0,ffff80002b1b1740) at sendit+0x65d sys/kern/uipc_syscalls.c:786 sys_sendto(ffff8000212d4558,ffff80002b1b16f0,ffff80002b1b1740) at sys_sendto+0x84 sys/kern/uipc_syscalls.c:564 syscall(ffff80002b1b17c0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002b1b17c0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8bed6ee4720, count: -9 ddb{0}> show registers rdi 0xffff80002c9b8000 rsi 0x64c rbp 0xffff80002b1b1240 rbx 0x33 rdx 0xffff80002c9b8000 rcx 0x64b rax 0xffffffff819d49b2 rt_putgwroute+0x112 r8 0x20 r9 0 r10 0x2fcb40e5e8462d2b r11 0x51540c05d4b2a704 r12 0xfffffd8074e6fb08 r13 0xffff80002b1b12f8 r14 0 r15 0xffff8000006c94c0 rip 0xffffffff819d3741 rtrequest+0x8e1 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002b1b1150 ss 0x10 rtrequest+0x8e1: movzbl 0(%r14),%r15d ddb{0}> show proc PROC (syz-executor.6) tid=76508 pid=85679 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=76, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000212d5d40,0xffffffff82cd23e8 process=0xffff8000212710d8 user=0xffff80002b1ac000, vmspace=0xfffffd8069bb93b8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85679 4228 34046 0 2 0 syz-executor.6 *85679 76508 34046 0 7 0x4000000 syz-executor.6 34991 383599 65187 0 3 0x80 fsleep syz-executor.5 34991 80354 65187 0 7 0x4000000 syz-executor.5 34046 8431 16448 0 3 0x82 nanoslp syz-executor.6 72511 343185 16448 0 2 0x2 syz-executor.4 22600 295576 0 0 3 0x14200 bored sosplice 52119 296534 16448 0 3 0x82 piperd syz-executor.7 65187 288515 16448 0 3 0x82 nanoslp syz-executor.5 55324 516692 16448 0 3 0x2 getblk syz-executor.3 5234 111797 16448 0 3 0x82 piperd syz-executor.2 60282 69045 16448 0 3 0x82 nanoslp syz-executor.1 16091 238196 16448 0 2 0x2 syz-executor.0 16448 218528 26744 0 3 0x2000082 wait syz-fuzzer 16448 165645 26744 0 3 0x6000082 thrsleep syz-fuzzer 16448 455399 26744 0 3 0x6000082 thrsleep syz-fuzzer 16448 197665 26744 0 3 0x6000082 wait syz-fuzzer 16448 451720 26744 0 3 0x6000082 wait syz-fuzzer 16448 6666 26744 0 3 0x6000082 wait syz-fuzzer 16448 415227 26744 0 3 0x6000082 thrsleep syz-fuzzer 16448 18287 26744 0 3 0x6000082 wait syz-fuzzer 16448 449185 26744 0 3 0x6000082 thrsleep syz-fuzzer 16448 7137 26744 0 3 0x6000082 thrsleep syz-fuzzer 16448 185679 26744 0 3 0x6000082 thrsleep syz-fuzzer 16448 142158 26744 0 3 0x6000082 wait syz-fuzzer 16448 444555 26744 0 3 0x6000082 wait syz-fuzzer 16448 79129 26744 0 3 0x6000082 wait syz-fuzzer 16448 342194 26744 0 3 0x6000082 thrsleep syz-fuzzer 16448 74235 26744 0 2 0x6000082 syz-fuzzer 26744 186633 61402 0 3 0x10008a sigsusp ksh 61402 425631 51512 0 3 0x9a kqread sshd 37363 54055 1 0 3 0x100083 ttyin getty 51512 5497 1 0 3 0x88 kqread sshd 56083 172011 18550 74 3 0x1100092 bpf pflogd 18550 249117 1 0 3 0x80 netio pflogd 48635 22186 85695 73 3 0x1100090 kqread syslogd 85695 112117 1 0 3 0x100082 netio syslogd 34486 210170 1 0 3 0x100080 kqread resolvd 99670 14941 35795 77 3 0x100092 kqread dhcpleased 53115 499712 35795 77 3 0x100092 kqread dhcpleased 35795 396248 1 0 3 0x80 kqread dhcpleased 9008 345692 0 0 3 0x14200 bored smr 58616 110773 0 0 2 0x14200 zerothread 43135 198592 0 0 3 0x14200 aiodoned aiodoned 69754 58095 0 0 3 0x14200 syncer update 84384 148665 0 0 3 0x14200 cleaner cleaner 21835 102393 0 0 3 0x14200 reaper reaper 68915 313706 0 0 3 0x14200 pgdaemon pagedaemon 53872 273504 0 0 3 0x14200 bored viomb 21723 351065 0 0 3 0x40014200 acpi0 acpi0 41791 152482 0 0 3 0x40014200 idle1 34161 524162 0 0 3 0x14200 bored softnet3 51609 36678 0 0 3 0x14200 bored softnet2 8275 374698 0 0 3 0x14200 bored softnet1 34198 453535 0 0 3 0x14200 bored softnet0 13983 112487 0 0 3 0x14200 bored systqmp 35586 455976 0 0 3 0x14200 bored systq 33586 211501 0 0 3 0x14200 tmoslp softclockmp 97757 262707 0 0 3 0x40014200 tmoslp softclock 38271 28761 0 0 3 0x40014200 idle0 1 43909 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 85679 (syz-executor.6) thread 0xffff8000212d4558 (76508) exclusive rwlock netlock r = 0 (0xffffffff82bb4fd0) #0 witness_lock+0x447 #1 rtm_output+0x554 sys/net/rtsock.c:954 #2 route_output+0x6b3 sys/net/rtsock.c:863 #3 route_send+0x8f sys/net/rtsock.c:339 #4 sosend+0x66d #5 sendit+0x65d sys/kern/uipc_syscalls.c:786 #6 sys_sendto+0x84 sys/kern/uipc_syscalls.c:564 #7 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #7 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #8 Xsyscall+0x128 Process 72511 (syz-executor.4) thread 0xffff8000212d4ff8 (343185) exclusive rrwlock inode r = 0 (0xfffffd8073841d60) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80798f5a28) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 55324 (syz-executor.3) thread 0xffff80002127f2b8 (516692) exclusive rrwlock inode r = 0 (0xfffffd80738414e0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vn_closefile+0xca vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0xca sys/kern/vfs_vnops.c:609 #6 fdrop+0xcb sys/kern/kern_descrip.c:1274 #7 closef+0x120 sys/kern/kern_descrip.c:1258 #8 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 16091 (syz-executor.0) thread 0xffff80002127eac0 (238196) exclusive rrwlock inode r = 0 (0xfffffd80738415f0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069be6700) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10195 6472K 7444K 78643K 14160 0 pcb 13 8K 8K 78643K 262 0 rtable 243 7K 7K 78643K 507 0 pf 32 9K 10K 78643K 106 0 ifaddr 45 15K 16K 78643K 80 0 ifgroup 55 2K 2K 78643K 156 0 sysctl 1 0K 0K 78643K 1 0 counters 60 35K 36K 78643K 106 0 ioctlops 0 0K 4K 78643K 1496 0 iov 0 0K 16K 78643K 166 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1295 81K 81K 78643K 2377 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 355 0 dirhash 12 2K 3K 78643K 66 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 81K 78643K 3592 0 sigio 0 0K 0K 78643K 65 0 proc 70 91K 152K 78643K 915 0 subproc 104 6K 6K 78643K 137 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 235 0 in_multi 99 7K 7K 78643K 193 0 ether_multi 1 0K 0K 78643K 26 0 mrt 6 0K 0K 78643K 25 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 519 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 304 82K 84K 78643K 32474 0 UVM aobj 32 2K 2K 78643K 32 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 121 0 NDP 12 0K 2K 78643K 55 0 temp 74 5920K 6000K 78643K 17758 0 kqueue 12 18K 44K 78643K 280 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 120 151 0 147 1 0 1 1 0 8 0 rtentry 112 140 0 27 4 0 4 4 0 8 0 unpcb 144 794 0 779 3 2 1 2 0 8 0 syncache 304 110 0 110 8 7 1 1 0 8 1 tcpqe 32 190 0 190 7 7 0 1 0 8 0 tcpcb 808 621 0 613 10 7 3 5 0 8 0 arp 120 23 0 4 1 0 1 1 0 8 0 inpcb 368 1544 0 1529 9 6 3 5 0 8 0 nd6 136 31 0 6 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1256 4 0 4 1 1 0 1 0 8 0 pffrag 232 13 0 13 3 2 1 1 0 482 1 pffrnode 88 13 0 13 3 2 1 1 0 8 1 pffrent 40 26 0 26 3 2 1 1 0 8 1 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 75 0 67 1 0 1 1 0 8 0 pfstkey 128 75 0 67 1 0 1 1 0 8 0 pfstate 376 75 0 67 4 2 2 3 0 8 1 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 555 0 88 30 0 30 30 0 8 0 art_table 32 556 0 88 4 0 4 4 0 8 0 art_node 16 134 0 32 1 0 1 1 0 8 0 semapl 112 353 0 343 1 0 1 1 0 8 0 shmpl 112 29 0 0 1 0 1 1 0 8 0 dirhash 1024 53 0 36 3 0 3 3 0 8 0 dino2pl 256 6011 0 4560 92 0 92 92 0 8 0 ffsino 272 6011 0 4560 98 0 98 98 0 8 0 nchpl 144 10351 0 8700 64 0 64 64 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 27451 0 27449 2 1 1 2 0 8 0 percpumem 16 66 0 23 1 0 1 1 0 8 0 kstatmem 264 70 0 46 2 0 2 2 0 8 0 scxspl 216 31506 0 31506 12 11 1 8 1 8 1 plimitpl 152 223 0 207 1 0 1 1 0 8 0 sigapl 424 3912 0 3867 6 0 6 6 0 8 0 futexpl 64 26757 0 26756 1 0 1 1 0 8 0 knotepl 120 570 0 0 18 1 17 18 0 8 0 kqueuepl 216 291 0 282 2 1 1 2 0 8 0 pipepl 320 207 0 179 3 0 3 3 0 8 0 fdescpl 496 3893 0 3868 5 1 4 5 0 8 0 filepl 152 11454 0 11213 14 4 10 11 0 8 0 lockfpl 104 710 0 708 1 0 1 1 0 8 0 lockfspl 48 330 0 328 1 0 1 1 0 8 0 sessionpl 144 26 0 9 1 0 1 1 0 8 0 pgrppl 48 52 0 35 1 0 1 1 0 8 0 ucredpl 104 1943 0 1930 1 0 1 1 0 8 0 zombiepl 144 3868 0 3867 1 0 1 1 0 8 0 processpl 1072 3912 0 3867 4 0 4 4 0 8 0 procpl 680 7507 0 7445 7 0 7 7 0 8 0 sosppl 168 59 0 59 3 2 1 1 0 8 1 sockpl 488 2501 0 2471 16 9 7 11 0 8 0 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 13 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 11 0 0 2 0 2 2 0 8 0 mcl4k 4096 47 0 0 6 1 5 6 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 273 0 0 32 1 31 32 0 8 1 mtagpl 96 298 0 0 8 0 8 8 0 8 0 mbufpl 256 1143 0 0 72 1 71 71 0 8 0 bufpl 288 8413 0 2091 452 0 452 452 0 8 0 anonpl 24 528751 0 522011 142 76 66 93 0 186 1 amapchunkpl 152 102640 0 102005 47 18 29 32 0 158 1 amappl16 200 14215 0 14066 68 56 12 34 0 8 0 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 171 0 157 2 1 1 2 0 8 0 amappl13 176 8 0 7 1 0 1 1 0 8 0 amappl12 168 4599 0 4572 3 1 2 2 0 8 0 amappl11 160 58 0 44 1 0 1 1 0 8 0 amappl10 152 42 0 31 1 0 1 1 0 8 0 amappl9 144 159 0 159 1 1 0 1 0 8 0 amappl8 136 315 0 233 3 0 3 3 0 8 0 amappl7 128 211 0 184 3 1 2 3 0 8 0 amappl6 120 276 0 269 1 0 1 1 0 8 0 amappl5 112 162 0 150 1 0 1 1 0 8 0 amappl4 104 494 0 459 3 1 2 2 0 8 1 amappl3 96 20704 0 20630 4 1 3 3 0 8 0 amappl2 88 4375 0 4304 3 1 2 3 0 8 0 amappl1 80 21431 0 20883 23 10 13 23 0 8 0 amappl 88 31782 0 31603 6 1 5 6 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 31 0 0 1 0 1 1 0 8 0 uaddrrnd 24 3893 0 3868 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3893 0 3868 1 0 1 1 0 8 0 vmmpekpl 168 24385 0 24332 3 0 3 3 0 8 0 vmmpepl 168 235779 0 233906 173 75 98 119 0 357 4 vmsppl 464 3892 0 3868 5 1 4 5 0 8 0 rwobjpl 56 65200 0 58029 109 4 105 106 0 8 0 pdppl 4096 7794 0 7736 270 200 70 78 0 8 12 pvpl 32 1490961 0 1478885 368 206 162 367 0 265 37 pmappl 248 3892 0 3868 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1094 0 220 27 1 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace rtrequest(1,ffff80002b1b12f8,0,ffff80002b1b1268,0) at rtrequest+0x8e1 sys/net/route.c:941 rtm_output(ffff800000d5d400,ffff80002b1b13a0,ffff80002b1b12f8,0,0) at rtm_output+0x5f7 sys/net/rtsock.c:958 route_output(fffffd807e90c200,fffffd8073346bb8) at route_output+0x6b3 sys/net/rtsock.c:863 route_send(fffffd8073346bb8,fffffd807e90c200,0,0) at route_send+0x8f sys/net/rtsock.c:339 sosend(fffffd8073346bb8,0,ffff80002b1b1560,0,0,0) at sosend+0x66d sendit(ffff8000212d4558,3,ffff80002b1b1660,0,ffff80002b1b1740) at sendit+0x65d sys/kern/uipc_syscalls.c:786 sys_sendto(ffff8000212d4558,ffff80002b1b16f0,ffff80002b1b1740) at sys_sendto+0x84 sys/kern/uipc_syscalls.c:564 syscall(ffff80002b1b17c0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002b1b17c0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8bed6ee4720, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800020d48ff0) 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 copy_fault() at copy_fault syscall(ffff80002e3eb420) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e3eb420) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbd6af1d1b30, count: 9 ddb{1}> trace x86_ipi_db(ffff800020d48ff0) 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 copy_fault() at copy_fault syscall(ffff80002e3eb420) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e3eb420) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbd6af1d1b30, count: -6