login: panic: sbdrop Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *151135 20778 0 0x14000 0x200 0 softnet db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821fd8dd) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dabd008,fffffd805dabd100,4f4) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708938,ffff80001d708944,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708938,ffff80001d708944,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708938,ffff80001d708944,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708938,ffff80001d708944,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd8053f80d00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd8053f80d00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708a48) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708a48) 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(ffffffff821fd8dd) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dabd008,fffffd805dabd100,4f4) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708938,ffff80001d708944,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708938,ffff80001d708944,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708938,ffff80001d708944,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708938,ffff80001d708944,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd8053f80d00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd8053f80d00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708a48) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708a48) 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 0xffff80001d7084c0 rbx 0xffff80001d708570 rdx 0x2 rcx 0 rax 0x1 r8 0xffffffff813da9ef kprintf+0x15f r9 0x1 r10 0x2 r11 0x81bb14b4f544ee92 r12 0x3000000008 r13 0xffff80001d7084d0 r14 0x100 r15 0x1 rip 0xffffffff81dde048 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d7084b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (softnet) pid=151135 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6e14e0,0xffff80001d6e19d0 process=0xffff8000ffffeac8 user=0xffff80001d703000, vmspace=0xffffffff825c7ac0 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 43139 326108 5089 0 3 0x80 nanosleep syz-executor.0 43139 516262 5089 0 3 0x4000080 netcon syz-executor.0 43139 296835 5089 0 3 0x4000080 fsleep syz-executor.0 78487 208750 56399 0 3 0x80 nanosleep syz-executor.1 78487 517947 56399 0 3 0x4000080 netcon syz-executor.1 78487 343428 56399 0 3 0x4000080 fsleep syz-executor.1 31820 270665 0 0 3 0x14200 bored sosplice 56399 208374 76752 0 3 0x82 nanosleep syz-executor.1 5089 136799 76752 0 3 0x82 nanosleep syz-executor.0 76752 462882 57286 0 3 0x82 kqread syz-fuzzer 76752 75758 57286 0 3 0x4000082 thrsleep syz-fuzzer 76752 275339 57286 0 3 0x4000082 thrsleep syz-fuzzer 76752 195834 57286 0 3 0x4000082 thrsleep syz-fuzzer 76752 523917 57286 0 3 0x4000082 thrsleep syz-fuzzer 76752 337183 57286 0 3 0x4000082 thrsleep syz-fuzzer 76752 297709 57286 0 3 0x4000082 thrsleep syz-fuzzer 76752 313773 57286 0 3 0x4000082 thrsleep syz-fuzzer 57286 432633 50635 0 3 0x10008a pause ksh 50635 159532 50746 0 3 0x92 select sshd 332 161731 1 0 3 0x100083 ttyin getty 50746 44625 1 0 3 0x80 select sshd 59881 215932 5616 73 3 0x100090 kqread syslogd 5616 189698 1 0 3 0x100082 netio syslogd 22298 520596 1 77 3 0x100090 poll dhclient 63029 489540 1 0 3 0x80 poll dhclient 2661 146987 0 0 3 0x14200 bored smr 22221 133453 0 0 3 0x14200 pgzero zerothread 20723 479912 0 0 3 0x14200 aiodoned aiodoned 85960 59430 0 0 3 0x14200 syncer update 35629 64337 0 0 3 0x14200 cleaner cleaner 54885 196023 0 0 3 0x14200 reaper reaper 29702 493855 0 0 3 0x14200 pgdaemon pagedaemon 47949 453241 0 0 3 0x14200 bored crynlk 61796 488894 0 0 3 0x14200 bored crypto 20203 102287 0 0 3 0x40014200 acpi0 acpi0 *20778 151135 0 0 7 0x14200 softnet 70734 163514 0 0 3 0x14200 bored systqmp 91501 181298 0 0 3 0x14200 bored systq 2936 185201 0 0 3 0x40014200 bored softclock 76371 192895 0 0 3 0x40014200 idle0 1 420282 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 9488 6338K 6724K 78643K 10905 0 pcb 13 8K 8K 78643K 51 0 rtable 106 3K 4K 78643K 248 0 ifaddr 63 13K 13K 78643K 97 0 counters 21 16K 16K 78643K 25 0 ioctlops 0 0K 2K 78643K 23 0 iov 0 0K 24K 78643K 48 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1338 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 12 0K 0K 78643K 40 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 6 17K 25K 78643K 226 0 sigio 0 0K 0K 78643K 12 0 proc 49 38K 63K 78643K 376 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 20 0 in_multi 42 2K 2K 78643K 69 0 ether_multi 1 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 205 0 pfkey data 0 0K 1K 78643K 2 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 127 55K 55K 78643K 1462 0 UVM aobj 13 4K 4K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 36 0 NDP 10 0K 0K 78643K 19 0 temp 92 3034K 3098K 78643K 11959 0 kqueue 3 4K 12K 78643K 11 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 6 0 0 1 0 1 1 0 8 0 rtpcb 80 39 0 37 1 0 1 1 0 8 0 rtentry 112 51 0 8 2 0 2 2 0 8 0 unpcb 120 131 0 121 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 74 0 74 1 1 0 1 0 8 0 tcpcb 544 301 0 295 2 1 1 2 0 8 0 ipq 40 2 0 2 2 1 1 1 0 8 1 ipqe 40 47 0 47 2 1 1 1 0 8 1 inpcb 280 462 0 452 4 2 2 2 0 8 1 nd6 48 8 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 221 0 40 13 0 13 13 0 8 0 art_table 32 223 0 40 2 0 2 2 0 8 0 art_node 16 50 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 38 0 28 1 0 1 1 0 8 0 shmpl 112 11 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1727 0 328 88 0 88 88 0 8 0 ffsino 240 1727 0 328 83 0 83 83 0 8 0 nchpl 144 2210 0 620 60 0 60 60 0 8 0 uvmvnodes 72 1851 0 0 34 0 34 34 0 8 0 vnodes 208 1851 0 0 98 0 98 98 0 8 0 namei 1024 5746 0 5746 2 1 1 1 0 8 1 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 528 4 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 6064 0 6064 1 0 1 1 0 8 1 plimitpl 152 31 0 24 1 0 1 1 0 8 0 sigapl 424 413 0 383 4 0 4 4 0 8 0 futexpl 56 4830 0 4828 2 1 1 1 0 8 0 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 144 26 0 24 1 0 1 1 0 8 0 pipelkpl 16 92 0 82 1 0 1 1 0 8 0 pipepl 120 184 0 165 1 0 1 1 0 8 0 fdescpl 432 398 0 383 2 0 2 2 0 8 0 filepl 120 2430 0 2328 4 0 4 4 0 8 0 lockfpl 104 34 0 33 1 0 1 1 0 8 0 lockfspl 48 14 0 13 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 190 0 183 1 0 1 1 0 8 0 zombiepl 144 383 0 383 2 1 1 1 0 8 1 processpl 920 413 0 383 4 0 4 4 0 8 0 procpl 624 756 0 715 4 0 4 4 0 8 0 sosppl 128 5 0 5 2 1 1 1 0 8 1 sockpl 400 634 0 612 5 2 3 3 0 8 0 mcl64k 65536 23 0 21 3 2 1 1 0 8 0 mcl16k 16384 2 0 2 2 2 0 1 0 8 0 mcl12k 12288 2 0 2 2 1 1 1 0 8 1 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 7 0 7 3 2 1 1 0 8 1 mcl4k 4096 27 0 27 4 3 1 1 0 8 1 mcl2k 2048 65559 0 65521 15 9 6 12 0 8 0 mtagpl 80 21 0 2 2 1 1 1 0 8 0 mbufpl 256 106071 0 105721 29 6 23 23 0 8 0 bufpl 280 3799 0 130 263 0 263 263 0 8 0 anonpl 16 57250 0 43435 80 13 67 72 0 107 8 amapchunkpl 152 2320 0 2179 24 6 18 20 0 158 12 amappl16 192 2195 0 1446 57 16 41 50 0 8 3 amappl15 184 10 0 8 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl13 168 116 0 113 1 0 1 1 0 8 0 amappl12 160 10 0 6 1 0 1 1 0 8 0 amappl11 152 46 0 37 1 0 1 1 0 8 0 amappl10 144 21 0 15 1 0 1 1 0 8 0 amappl9 136 445 0 441 1 0 1 1 0 8 0 amappl8 128 419 0 381 2 0 2 2 0 8 0 amappl7 120 110 0 97 1 0 1 1 0 8 0 amappl6 112 21 0 16 1 0 1 1 0 8 0 amappl5 104 397 0 385 1 0 1 1 0 8 0 amappl4 96 519 0 490 1 0 1 1 0 8 0 amappl3 88 103 0 98 1 0 1 1 0 8 0 amappl2 80 2317 0 2244 2 0 2 2 0 8 0 amappl1 72 17376 0 16937 24 15 9 17 0 8 0 amappl 80 987 0 937 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 12 0 0 1 0 1 1 0 8 0 uaddrrnd 24 402 0 383 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 402 0 383 1 0 1 1 0 8 0 vmmpekpl 168 6795 0 6764 2 0 2 2 0 8 0 vmmpepl 168 54765 0 52807 113 27 86 102 0 357 0 vmsppl 272 401 0 383 4 2 2 2 0 8 0 pdppl 4096 810 0 770 7 1 6 6 0 8 0 pvpl 32 172057 0 155179 179 12 167 172 0 265 24 pmappl 200 401 0 383 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 271 0 33 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(ffffffff821fd8dd) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dabd008,fffffd805dabd100,4f4) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708938,ffff80001d708944,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708938,ffff80001d708944,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708938,ffff80001d708944,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708938,ffff80001d708944,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd8053f80d00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd8053f80d00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708a48) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708a48) 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(ffffffff821fd8dd) at panic+0x15c sys/kern/subr_prf.c:207 sbdrop(fffffd805dabd008,fffffd805dabd100,4f4) at sbdrop+0x3a6 sys/kern/uipc_socket2.c:953 tcp_input(ffff80001d708938,ffff80001d708944,6,2) at tcp_input+0x38ce sys/netinet/tcp_input.c:1725 ip_deliver(ffff80001d708938,ffff80001d708944,6,2) at ip_deliver+0x2e3 sys/netinet/ip_input.c:668 ip_ours(ffff80001d708938,ffff80001d708944,2,0) at ip_ours+0x4fe sys/netinet/ip_input.c:563 ip_input_if(ffff80001d708938,ffff80001d708944,4,0,ffff80000017a2a8) at ip_input_if+0x571 ipv4_input(ffff80000017a2a8,fffffd8053f80d00) at ipv4_input+0x48 sys/netinet/ip_input.c:215 ether_input(ffff80000017a2a8,fffffd8053f80d00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461 if_input_process(ffff80000017a2a8,ffff80001d708a48) at if_input_process+0xf8 if_ih_input sys/net/if.c:909 [inline] if_input_process(ffff80000017a2a8,ffff80001d708a48) 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