login: kernel: integer divide fault trap, code=0 Stopped at pf_purge+0x1e: divl __kernel_phys_base+0x50f7dc,%eax ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace pf_purge(ffffffff829ef470) at pf_purge+0x1e sys/net/pf.c:1302 taskq_thread(ffffffff829612f0) at taskq_thread+0x9b sys/kern/kern_task.c:449 end trace frame: 0x0, count: -2 ddb> show registers rdi 0xffffffff829ef470 pf_npurge rsi 0 rbp 0xffff80002159a070 rbx 0 rdx 0 rcx 0xffffffff829ef470 pf_npurge rax 0 r8 0 r9 0 r10 0x7cce906471fec3c5 r11 0x2962acd8685eb6 r12 0xffff80002159a080 r13 0xffff8000ffffc7d0 r14 0xffffffff829ef470 pf_npurge r15 0xffff80002159a0b0 rip 0xffffffff814e191e pf_purge+0x1e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002159a040 ss 0x10 pf_purge+0x1e: divl __kernel_phys_base+0x50f7dc,%eax ddb> show proc PROC (systq) pid=486080 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffe540,0xffff8000ffffe2b0 process=0xffff8000ffffc3e8 user=0xffff800021595000, vmspace=0xffffffff82a8bd58 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 87640 512776 38841 0 2 0x482 syz-executor1508 38841 194372 77240 0 3 0x10008a sigsusp ksh 77240 168887 41609 0 3 0x9a kqread sshd 9755 87800 1 0 3 0x100083 ttyin getty 41609 461799 1 0 3 0x88 kqread sshd 55987 370472 30480 73 3 0x100090 kqread syslogd 30480 102493 1 0 3 0x100082 netio syslogd 34264 139278 1 0 3 0x100080 kqread resolvd 99466 97466 1365 77 3 0x100092 kqread dhcpleased 14614 63462 1365 77 3 0x100092 kqread dhcpleased 1365 161371 1 0 3 0x80 kqread dhcpleased 18888 52477 0 0 3 0x14200 bored smr 16972 151089 0 0 3 0x14200 pgzero zerothread 42276 388180 0 0 3 0x14200 aiodoned aiodoned 40906 135911 0 0 3 0x14200 syncer update 29798 148818 0 0 3 0x14200 cleaner cleaner 28202 30188 0 0 3 0x14200 reaper reaper 81867 446175 0 0 3 0x14200 pgdaemon pagedaemon 68682 370391 0 0 3 0x14200 bored viomb 66486 319836 0 0 3 0x40014200 acpi0 acpi0 42179 327995 0 0 3 0x14200 bored softnet 90321 148530 0 0 3 0x14200 bored systqmp *29397 486080 0 0 7 0x14200 systq 84887 244654 0 0 3 0x40014200 bored softclock 50063 502384 0 0 3 0x40014200 idle0 1 364530 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10133 6381K 6412K 78643K 11223 0 pcb 13 8K 8K 78643K 13 0 rtable 62 2K 2K 78643K 108 0 ifaddr 24 7K 7K 78643K 24 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 25 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1166 73K 73K 78643K 1179 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 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 55 54K 55K 78643K 226 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 391 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 7 26K 26K 78643K 7 0 UVM amap 71 3K 5K 78643K 1906 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 3 0 temp 19 4678K 4741K 78643K 3198 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 136 33 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 1 0 1 1 0 8 1 tcpcb 736 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 304 25 0 19 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1415 0 38 87 0 87 87 0 8 0 ffsino 240 1415 0 38 81 0 81 81 0 8 0 nchpl 144 1590 0 47 58 0 58 58 0 8 0 uvmvnodes 80 1424 0 0 30 0 30 30 0 8 0 vnodes 224 1424 0 0 84 0 84 84 0 8 0 namei 1024 4231 0 4231 1 0 1 1 0 8 1 scxspl 216 3606 0 3606 3 1 2 2 0 8 2 plimitpl 152 15 0 9 1 0 1 1 0 8 0 sigapl 424 341 0 315 4 0 4 4 0 8 0 knotepl 120 6914 0 6884 2 0 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 304 79 0 76 1 0 1 1 0 8 0 fdescpl 432 328 0 315 2 0 2 2 0 8 0 filepl 120 1110 0 1057 2 0 2 2 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 96 64 0 54 1 0 1 1 0 8 0 zombiepl 144 315 0 314 1 0 1 1 0 8 0 processpl 1000 341 0 314 4 0 4 4 0 8 0 procpl 672 341 0 314 3 0 3 3 0 8 0 sockpl 448 75 0 53 3 0 3 3 0 8 0 mcl8k 8192 9 0 9 1 0 1 1 0 8 1 mcl4k 4096 5 0 5 1 0 1 1 0 8 1 mcl2k 2048 5661 0 5633 6 0 6 6 0 8 2 mtagpl 96 3 0 3 1 1 0 1 0 8 0 mbufpl 256 10466 0 10400 6 0 6 6 0 8 1 bufpl 288 1935 0 86 133 0 133 133 0 8 0 anonpl 24 38749 0 36701 15 1 14 15 0 188 1 amapchunkpl 152 3715 0 3590 7 1 6 7 0 158 0 amappl16 200 76 0 76 1 0 1 1 0 8 1 amappl15 192 59 0 56 1 0 1 1 0 8 0 amappl13 176 32 0 31 1 0 1 1 0 8 0 amappl12 168 15 0 15 1 0 1 1 0 8 1 amappl11 160 41 0 29 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 0 1 1 0 8 1 amappl9 144 434 0 432 1 0 1 1 0 8 0 amappl8 136 340 0 337 1 0 1 1 0 8 0 amappl7 128 60 0 57 1 0 1 1 0 8 0 amappl6 120 106 0 93 1 0 1 1 0 8 0 amappl5 112 243 0 234 1 0 1 1 0 8 0 amappl4 104 579 0 559 1 0 1 1 0 8 0 amappl3 96 110 0 101 1 0 1 1 0 8 0 amappl2 88 337 0 301 1 0 1 1 0 8 0 amappl1 80 8226 0 7873 9 0 9 9 0 8 1 amappl 88 1653 0 1597 2 0 2 2 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 328 0 315 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 328 0 315 1 0 1 1 0 8 0 vmmpekpl 168 5976 0 5960 1 0 1 1 0 8 0 vmmpepl 168 25277 0 24514 38 0 38 38 0 357 1 vmsppl 272 327 0 315 2 1 1 2 0 8 0 rwobjpl 24 8931 0 6997 12 0 12 12 0 8 0 pdppl 4096 662 0 630 46 12 34 40 0 8 2 pvpl 32 124798 0 121012 35 0 35 35 0 265 3 pmappl 216 327 0 315 1 0 1 1 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 381 0 15 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pf_purge(ffffffff829ef470) at pf_purge+0x1e sys/net/pf.c:1302 taskq_thread(ffffffff829612f0) at taskq_thread+0x9b sys/kern/kern_task.c:449 end trace frame: 0x0, count: -2 ddb> machine ddbcpu 1 No such command ddb> trace pf_purge(ffffffff829ef470) at pf_purge+0x1e sys/net/pf.c:1302 taskq_thread(ffffffff829612f0) at taskq_thread+0x9b sys/kern/kern_task.c:449 end trace frame: 0x0, count: -2 ddb>