kernel: integer divide fault trap, code=0 Stopped at pf_get_transaddr+0x298: idivl %r13d,%eax ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace pf_get_transaddr(ffff800000a6d550,ffff800020e91180,ffff800020e91038,ffff800020e91060) at pf_get_transaddr+0x298 sys/net/pf_lb.c:689 pf_test_rule(ffff800020e91180,ffff800020e91270,ffff800020e91280,ffff800020e91260,ffff800020e91248,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(2,2,ffff80000017b2a8,ffff800020e91378) at pf_test+0x1909 sys/net/pf.c:7101 ip_output(fffffd806f67b600,0,fffffd806f6de4d0,800,0,fffffd806f6de460) at ip_output+0xc5e sys/netinet/ip_output.c:421 tcp_output(ffff800000a0b320) at tcp_output+0x2664 sys/netinet/tcp_output.c:1040 tcp_usrreq(fffffd806eb477d8,9,fffffd806f67bb00,0,0,ffff800020edeeb0) at tcp_usrreq+0xa55 sosend(fffffd806eb477d8,0,ffff800020e917e8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020edeeb0,4,ffff800020e917e8,0,ffff800020e918d0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020edeeb0,ffff800020e91880,ffff800020e918d0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e91950) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e91950) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeb9a0, count: -11 ddb{1}> show registers rdi 0 rsi 0xfffe __ALIGN_SIZE+0xeffe rbp 0xffff800020e90fd0 rbx 0 rdx 0 rcx 0xffff __ALIGN_SIZE+0xefff rax 0x7497 __ALIGN_SIZE+0x6497 r8 0xffffffff81877f46 pf_insert_src_node+0x2d6 r9 0x1 r10 0x2 r11 0x20dcae043e6e93cb r12 0x7497 __ALIGN_SIZE+0x6497 r13 0 r14 0xffff800020e91180 r15 0xffff800000a6d550 rip 0xffffffff817d89d8 pf_get_transaddr+0x298 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e90f60 ss 0x10 pf_get_transaddr+0x298: idivl %r13d,%eax ddb{1}> show proc PROC (sshd) pid=50190 stat=onproc flags process=12 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ede760,0xffff800020edf610 process=0xffff800020ec8f78 user=0xffff800020e8c000, vmspace=0xfffffd806e95b2e8 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 92029 71536 1548 0 7 0 syz-executor.1 78715 66311 0 0 3 0x14200 bored sosplice 1548 376128 38635 0 3 0x82 nanosleep syz-executor.1 22103 180700 38635 0 2 0x2 syz-executor.0 38635 416577 73341 0 3 0x82 thrsleep syz-fuzzer 38635 192886 73341 0 3 0x4000082 nanosleep syz-fuzzer 38635 371088 73341 0 3 0x4000082 thrsleep syz-fuzzer 38635 268051 73341 0 3 0x4000082 nanosleep syz-fuzzer 38635 78726 73341 0 3 0x4000082 thrsleep syz-fuzzer 38635 493359 73341 0 3 0x4000082 thrsleep syz-fuzzer 38635 299597 73341 0 3 0x4000082 thrsleep syz-fuzzer 38635 322000 73341 0 3 0x4000082 thrsleep syz-fuzzer 38635 296389 73341 0 3 0x4000082 kqread syz-fuzzer 38635 457278 73341 0 3 0x4000082 thrsleep syz-fuzzer 73341 144279 53208 0 3 0x10008a pause ksh *53208 50190 45403 0 7 0x12 sshd 34173 392399 1 0 3 0x100083 ttyin getty 45403 226214 1 0 3 0x80 select sshd 50996 260358 53999 74 3 0x100092 bpf pflogd 53999 478863 1 0 3 0x80 netio pflogd 5515 414330 11554 73 3 0x100090 kqread syslogd 11554 413915 1 0 3 0x100082 netio syslogd 18358 46125 1 77 3 0x100090 poll dhclient 14700 181812 1 0 3 0x80 poll dhclient 79570 477512 0 0 3 0x14200 bored smr 56666 440103 0 0 2 0x14200 zerothread 4058 456126 0 0 3 0x14200 aiodoned aiodoned 55961 107892 0 0 3 0x14200 syncer update 83836 411997 0 0 3 0x14200 cleaner cleaner 83265 412703 0 0 3 0x14200 reaper reaper 39908 282705 0 0 3 0x14200 pgdaemon pagedaemon 60747 401987 0 0 3 0x14200 bored crynlk 82465 244750 0 0 3 0x14200 bored crypto 49605 372855 0 0 3 0x40014200 acpi0 acpi0 96310 343783 0 0 3 0x40014200 idle1 86029 502881 0 0 3 0x14200 bored softnet 70424 388375 0 0 3 0x14200 bored systqmp 78876 97298 0 0 3 0x14200 bored systq 99905 201944 0 0 3 0x40014200 bored softclock 59999 282093 0 0 3 0x40014200 idle0 1 208523 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 53208 (sshd) thread 0xffff800020edeeb0 (50190) exclusive rwlock netlock r = 0 (0xffffffff82509548) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sosend+0x559 sys/kern/uipc_socket.c:537 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_write+0x83 sys/kern/sys_generic.c:285 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9504 6410K 6666K 78643K 10811 0 pcb 13 8K 8K 78643K 45 0 rtable 128 8K 8K 78643K 312 0 ifaddr 62 12K 13K 78643K 84 0 counters 43 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1509 0 iov 0 0K 16K 78643K 20 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1289 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 11 1K 1K 78643K 25 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 191 0 proc 62 63K 95K 78643K 461 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 10 0 in_multi 33 2K 2K 78643K 46 0 ether_multi 1 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 226 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 116 55K 55K 78643K 1561 0 UVM aobj 15 2K 2K 78643K 17 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 18 0 NDP 10 0K 0K 78643K 18 0 temp 87 3038K 3103K 78643K 6068 0 kqueue 3 4K 8K 78643K 8 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 25 0 23 1 0 1 1 0 8 0 rtentry 112 46 0 1 2 0 2 2 0 8 0 unpcb 120 84 0 74 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 428 0 428 1 1 0 1 0 8 0 tcpcb 544 66 0 62 1 0 1 1 0 8 0 inpcb 280 186 0 178 3 1 2 2 0 8 1 nd6 48 7 0 0 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 23 0 15 1 0 1 1 0 8 0 pfstitem 24 17 0 17 1 0 1 1 0 8 1 pfstkey 112 17 0 17 1 0 1 1 0 8 1 pfstate 328 17 0 13 2 0 2 2 0 8 0 pfsrctr 152 1 0 0 1 0 1 1 0 8 0 pfrule 1360 33 0 18 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 203 0 0 13 0 13 13 0 8 0 art_table 32 204 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 15 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1630 0 223 89 0 89 89 0 8 0 ffsino 272 1630 0 223 95 1 94 94 0 8 0 nchpl 144 2171 0 560 60 0 60 60 0 8 0 uvmvnodes 72 1724 0 0 32 0 32 32 0 8 0 vnodes 208 1724 0 0 91 0 91 91 0 8 0 namei 1024 5780 0 5780 2 1 1 1 0 8 1 percpumem 16 36 0 4 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 2 2 1 1 1 0 8 0 pfiaddrpl 120 10 0 2 1 0 1 1 0 8 0 scxspl 192 5496 0 5496 7 5 2 6 0 8 2 plimitpl 152 23 0 15 1 0 1 1 0 8 0 sigapl 424 407 0 375 4 0 4 4 0 8 0 futexpl 56 2394 0 2394 1 0 1 1 0 8 1 knotepl 112 68 0 49 1 0 1 1 0 8 0 kqueuepl 144 33 0 31 1 0 1 1 0 8 0 pipelkpl 48 103 0 93 1 0 1 1 0 8 0 pipepl 120 206 0 187 1 0 1 1 0 8 0 fdescpl 496 391 0 375 3 0 3 3 0 8 0 filepl 152 2178 0 2078 6 1 5 5 0 8 1 lockfpl 104 37 0 36 1 0 1 1 0 8 0 lockfspl 48 15 0 14 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 166 0 155 1 0 1 1 0 8 0 zombiepl 144 375 0 375 2 1 1 1 0 8 1 processpl 984 407 0 375 6 1 5 5 0 8 0 procpl 624 794 0 753 4 0 4 4 0 8 0 sockpl 400 295 0 276 4 1 3 3 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 195 0 0 24 0 24 24 0 8 0 mtagpl 80 13 0 0 1 0 1 1 0 8 0 mbufpl 256 207 0 0 13 0 13 13 0 8 0 bufpl 280 3528 0 134 243 0 243 243 0 8 0 anonpl 16 50813 0 35280 69 6 63 68 0 124 0 amapchunkpl 152 2207 0 2058 12 4 8 12 0 158 0 amappl16 192 1648 0 822 42 0 42 42 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 28 0 21 1 0 1 1 0 8 0 amappl13 168 112 0 108 1 0 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 60 0 45 1 0 1 1 0 8 0 amappl10 144 105 0 98 1 0 1 1 0 8 0 amappl9 136 384 0 382 1 0 1 1 0 8 0 amappl8 128 338 0 310 1 0 1 1 0 8 0 amappl7 120 194 0 181 1 0 1 1 0 8 0 amappl6 112 24 0 22 1 0 1 1 0 8 0 amappl5 104 302 0 285 1 0 1 1 0 8 0 amappl4 96 576 0 545 1 0 1 1 0 8 0 amappl3 88 105 0 99 1 0 1 1 0 8 0 amappl2 80 2177 0 2113 2 0 2 2 0 8 0 amappl1 72 18434 0 17999 23 13 10 18 0 8 0 amappl 80 1049 0 1004 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 16 0 2 1 0 1 1 0 8 0 uaddrrnd 24 397 0 377 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 397 0 377 1 0 1 1 0 8 0 vmmpekpl 168 7079 0 7045 2 0 2 2 0 8 0 vmmpepl 168 54258 0 52308 117 15 102 112 0 357 12 vmsppl 368 396 0 377 2 0 2 2 0 8 0 pdppl 4096 802 0 758 6 0 6 6 0 8 0 pvpl 32 169388 0 150736 166 5 161 166 0 265 9 pmappl 232 396 0 377 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 266 0 6 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff824f2ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 alltraps() at alltraps+0x138 end of kernel end trace frame: 0x7f7ffffef660, count: -4 ddb{0}> machine ddbcpu 1 Stopped at pf_get_transaddr+0x298: idivl %r13d,%eax ddb{1}> trace pf_get_transaddr(ffff800000a6d550,ffff800020e91180,ffff800020e91038,ffff800020e91060) at pf_get_transaddr+0x298 sys/net/pf_lb.c:689 pf_test_rule(ffff800020e91180,ffff800020e91270,ffff800020e91280,ffff800020e91260,ffff800020e91248,3) at pf_test_rule+0x495 sys/net/pf.c:3822 pf_test(2,2,ffff80000017b2a8,ffff800020e91378) at pf_test+0x1909 sys/net/pf.c:7101 ip_output(fffffd806f67b600,0,fffffd806f6de4d0,800,0,fffffd806f6de460) at ip_output+0xc5e sys/netinet/ip_output.c:421 tcp_output(ffff800000a0b320) at tcp_output+0x2664 sys/netinet/tcp_output.c:1040 tcp_usrreq(fffffd806eb477d8,9,fffffd806f67bb00,0,0,ffff800020edeeb0) at tcp_usrreq+0xa55 sosend(fffffd806eb477d8,0,ffff800020e917e8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020edeeb0,4,ffff800020e917e8,0,ffff800020e918d0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020edeeb0,ffff800020e91880,ffff800020e918d0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e91950) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e91950) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeb9a0, count: -11