""""panic: sbdrop Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *194345 39656 0 0x14000 0x200 0 softnet db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8220d355) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dac4008,fffffd805dac4100,824) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708a98,ffff80001d708aa4,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708a98,ffff80001d708aa4,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708a98,ffff80001d708aa4,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708a98,ffff80001d708aa4,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd805c2eee00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd805c2eee00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 sys/net/if.c:943 ifiq_process(ffff80000017a660) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff8000000290c0) at taskq_thread+0x52 sys/kern/kern_task.c:370 end trace frame: 0x0, count: 3 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic sbdrop ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8220d355) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dac4008,fffffd805dac4100,824) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708a98,ffff80001d708aa4,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708a98,ffff80001d708aa4,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708a98,ffff80001d708aa4,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708a98,ffff80001d708aa4,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd805c2eee00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd805c2eee00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 sys/net/if.c:943 ifiq_process(ffff80000017a660) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff8000000290c0) at taskq_thread+0x52 sys/kern/kern_task.c:370 end trace frame: 0x0, count: -12 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d708620 rbx 0xffff80001d7086d0 rdx 0x2 rcx 0 rax 0 r8 0xffffffff81e7465f kprintf+0x15f r9 0x1 r10 0x2 r11 0x3556c858a3f16492 r12 0x3000000008 r13 0xffff80001d708630 r14 0x100 r15 0x1 rip 0xffffffff818c51a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d708610 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (softnet) pid=194345 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6e1ea0,0xffff80001d6e1010 process=0xffff8000ffffeac8 user=0xffff80001d703000, vmspace=0xffffffff825a1cb8 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 71091 442141 7619 0 2 0 syz-executor.1 71091 493954 7619 0 3 0x4000080 fsleep syz-executor.1 7619 296477 76833 0 3 0x82 nanosleep syz-executor.1 65451 21916 1 0 3 0x100083 ttyin getty 84596 129795 0 0 3 0x14200 bored sosplice 68902 54669 76833 0 2 0x2 syz-executor.0 76833 50669 43048 0 3 0x82 kqread syz-fuzzer 76833 256233 43048 0 3 0x4000082 nanosleep syz-fuzzer 76833 77701 43048 0 3 0x4000082 thrsleep syz-fuzzer 76833 250141 43048 0 3 0x4000082 thrsleep syz-fuzzer 76833 156187 43048 0 3 0x4000082 thrsleep syz-fuzzer 76833 91897 43048 0 3 0x4000082 thrsleep syz-fuzzer 76833 234662 43048 0 3 0x4000082 thrsleep syz-fuzzer 76833 477664 43048 0 3 0x4000082 thrsleep syz-fuzzer 43048 459864 96715 0 3 0x10008a pause ksh 96715 390131 61081 0 3 0x92 select sshd 61081 309725 1 0 3 0x80 select sshd 14316 385335 23991 73 3 0x100090 kqread syslogd 23991 350963 1 0 3 0x100082 netio syslogd 77761 247449 1 77 3 0x100090 poll dhclient 56420 136720 1 0 3 0x80 poll dhclient 46303 253987 0 0 3 0x14200 bored smr 64014 64922 0 0 2 0x14200 zerothread 4348 169499 0 0 3 0x14200 aiodoned aiodoned 13389 312129 0 0 3 0x14200 syncer update 4604 208729 0 0 3 0x14200 cleaner cleaner 83205 385763 0 0 3 0x14200 reaper reaper 21708 506506 0 0 3 0x14200 pgdaemon pagedaemon 27492 520447 0 0 3 0x14200 bored crynlk 91587 510242 0 0 3 0x14200 bored crypto 3669 487154 0 0 3 0x40014200 acpi0 acpi0 *39656 194345 0 0 7 0x14200 softnet 34232 120020 0 0 3 0x14200 bored systqmp 11066 184924 0 0 3 0x14200 bored systq 42375 450733 0 0 3 0x40014200 bored softclock 56588 290869 0 0 3 0x40014200 idle0 1 426947 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 9516 6357K 6745K 78643K 11483 0 pcb 13 8K 8K 78643K 97 0 rtable 110 4K 4K 78643K 373 0 ifaddr 87 16K 17K 78643K 154 0 counters 21 16K 16K 78643K 31 0 ioctlops 0 0K 2K 78643K 39 0 iov 0 0K 24K 78643K 80 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1538 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 62 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 497 0 sigio 0 0K 0K 78643K 23 0 proc 54 39K 63K 78643K 489 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 1 0K 0K 78643K 170 0 in_multi 68 3K 3K 78643K 156 0 ether_multi 1 0K 0K 78643K 18 0 mrt 0 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 277 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 134 56K 56K 78643K 2060 0 UVM aobj 24 2K 2K 78643K 34 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 109 0 NDP 14 0K 0K 78643K 31 0 temp 113 3036K 3113K 78643K 27819 0 kqueue 3 4K 12K 78643K 42 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 arp 64 9 0 4 1 0 1 1 0 8 0 rtpcb 80 49 0 47 1 0 1 1 0 8 0 rtentry 112 66 0 24 2 0 2 2 0 8 0 unpcb 120 349 0 341 1 0 1 1 0 8 0 syncache 264 11 0 11 3 3 0 1 0 8 0 tcpqe 32 12 0 12 2 2 0 1 0 8 0 tcpcb 544 466 0 461 1 0 1 1 0 8 0 ipq 40 3 0 3 1 1 0 1 0 8 0 ipqe 40 9 0 9 1 1 0 1 0 8 0 inpcb 280 941 0 932 4 3 1 2 0 8 0 nd6 48 12 0 7 1 0 1 1 0 8 0 ppxss 1128 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 256 325 0 107 16 2 14 14 0 8 0 art_table 32 327 0 107 2 0 2 2 0 8 0 art_node 16 65 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 56 0 46 1 0 1 1 0 8 0 shmpl 112 32 0 10 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2201 0 810 88 0 88 88 0 8 0 ffsino 240 2201 0 810 83 0 83 83 0 8 0 nchpl 144 3100 0 1514 60 0 60 60 0 8 0 uvmvnodes 72 2452 0 0 45 0 45 45 0 8 0 vnodes 208 2452 0 0 130 0 130 130 0 8 0 namei 1024 8875 0 8874 3 2 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 528 5 0 2 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 9550 0 9550 1 0 1 1 0 8 1 plimitpl 152 73 0 66 1 0 1 1 0 8 0 sigapl 424 684 0 655 4 0 4 4 0 8 0 futexpl 56 10489 0 10488 3 2 1 1 0 8 0 knotepl 112 124 0 105 1 0 1 1 0 8 0 kqueuepl 144 72 0 69 1 0 1 1 0 8 0 pipelkpl 16 142 0 132 1 0 1 1 0 8 0 pipepl 120 284 0 265 1 0 1 1 0 8 0 fdescpl 432 667 0 653 2 0 2 2 0 8 0 filepl 120 4683 0 4586 4 0 4 4 0 8 0 lockfpl 104 129 0 128 1 0 1 1 0 8 0 lockfspl 48 47 0 46 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 25 0 15 1 0 1 1 0 8 0 ucredpl 96 771 0 764 1 0 1 1 0 8 0 zombiepl 144 655 0 655 1 0 1 1 0 8 1 processpl 920 684 0 655 4 0 4 4 0 8 0 procpl 624 1256 0 1219 7 3 4 4 0 8 0 sosppl 128 13 0 13 3 3 0 1 0 8 0 sockpl 400 1339 0 1320 8 5 3 4 0 8 1 mcl64k 65536 24 0 24 3 3 0 1 0 8 0 mcl16k 16384 2 0 2 2 1 1 1 0 8 1 mcl12k 12288 18 0 18 3 3 0 1 0 8 0 mcl9k 9216 10 0 10 3 3 0 1 0 8 0 mcl8k 8192 12 0 12 5 4 1 1 0 8 1 mcl4k 4096 51 0 51 4 3 1 1 0 8 1 mcl2k 2048 57986 0 57939 15 8 7 12 0 8 0 mtagpl 80 58 0 21 2 1 1 1 0 8 0 mbufpl 256 96509 0 96342 21 9 12 14 0 8 0 bufpl 280 4977 0 151 345 0 345 345 0 8 0 anonpl 16 80959 0 67355 74 14 60 72 0 107 0 amapchunkpl 152 3449 0 3320 24 11 13 19 0 158 7 amappl16 192 3580 0 2799 51 11 40 49 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 27 0 21 1 0 1 1 0 8 0 amappl13 168 29 0 28 1 0 1 1 0 8 0 amappl12 160 168 0 163 2 1 1 1 0 8 0 amappl11 152 278 0 267 1 0 1 1 0 8 0 amappl10 144 17 0 11 1 0 1 1 0 8 0 amappl9 136 374 0 372 1 0 1 1 0 8 0 amappl8 128 368 0 321 2 0 2 2 0 8 0 amappl7 120 122 0 110 1 0 1 1 0 8 0 amappl6 112 253 0 244 1 0 1 1 0 8 0 amappl5 104 524 0 511 1 0 1 1 0 8 0 amappl4 96 666 0 639 1 0 1 1 0 8 0 amappl3 88 125 0 120 1 0 1 1 0 8 0 amappl2 80 4451 0 4389 2 0 2 2 0 8 0 amappl1 72 21575 0 21157 23 14 9 17 0 8 0 amappl 80 1513 0 1470 1 0 1 1 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 33 0 10 1 0 1 1 0 8 0 uaddrrnd 24 672 0 655 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 672 0 655 1 0 1 1 0 8 0 vmmpekpl 168 8158 0 8131 2 0 2 2 0 8 0 vmmpepl 168 85193 0 83312 129 42 87 109 0 357 2 vmsppl 272 671 0 655 4 2 2 2 0 8 0 pdppl 4096 1350 0 1313 6 1 5 6 0 8 0 pvpl 32 239456 0 222872 173 30 143 171 0 265 0 pmappl 200 671 0 655 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 273 0 45 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8220d355) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dac4008,fffffd805dac4100,824) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708a98,ffff80001d708aa4,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708a98,ffff80001d708aa4,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708a98,ffff80001d708aa4,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708a98,ffff80001d708aa4,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd805c2eee00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd805c2eee00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 sys/net/if.c:943 ifiq_process(ffff80000017a660) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff8000000290c0) at taskq_thread+0x52 sys/kern/kern_task.c:370 end trace frame: 0x0, count: -12 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8220d355) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dac4008,fffffd805dac4100,824) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708a98,ffff80001d708aa4,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708a98,ffff80001d708aa4,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708a98,ffff80001d708aa4,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708a98,ffff80001d708aa4,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd805c2eee00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd805c2eee00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708ba8) at if_input_process+0xf8 sys/net/if.c:943 ifiq_process(ffff80000017a660) at ifiq_process+0x80 sys/net/ifq.c:646 taskq_thread(ffff8000000290c0) at taskq_thread+0x52 sys/kern/kern_task.c:370 end trace frame: 0x0, count: -12