login: panic: receive 1a: so 0xfffffd8037f9c180, so_type 3, m 0xfffffd8037000000, m_type 26989 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *143372 70662 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8037f9c180,0,ffff800014886d68,0,0,ffff800014886c74) at soreceive+0x170a sys/kern/uipc_socket.c:952 soo_read(fffffd8037561618,ffff800014886d68,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff8000ffff8280,6,ffff800014886d68,0,ffff800014886e50) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff8000ffff8280,ffff800014886e00,ffff800014886e50) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff800014886ed0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbc080, count: 7 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 receive 1a: so 0xfffffd8037f9c180, so_type 3, m 0xfffffd8037000000, m_type 26989 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8037f9c180,0,ffff800014886d68,0,0,ffff800014886c74) at soreceive+0x170a sys/kern/uipc_socket.c:952 soo_read(fffffd8037561618,ffff800014886d68,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff8000ffff8280,6,ffff800014886d68,0,ffff800014886e50) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff8000ffff8280,ffff800014886e00,ffff800014886e50) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff800014886ed0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbc080, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff800014886ab0 rbx 0xffff800014886b60 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff800014886a70 r9 0x1 r10 0x7216dbc9590ddb73 r11 0x59cc1607c7c86c1a r12 0x3000000008 r13 0xffff800014886ac0 r14 0x100 r15 0x1 rip 0xffffffff81339268 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800014886aa0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=143372 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff9150,0xffff8000ffff8508 process=0xffff8000ffff66d0 user=0xffff800014881000, vmspace=0xfffffd803f012660 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 78256 410591 38308 0 3 0x82 thrsleep syz-execprog 78256 102713 38308 0 3 0x4000082 nanosleep syz-execprog 78256 59124 38308 0 3 0x4000082 thrsleep syz-execprog 78256 393020 38308 0 3 0x4000082 thrsleep syz-execprog 78256 320164 38308 0 2 0x4000002 syz-execprog 78256 488163 38308 0 3 0x4000082 thrsleep syz-execprog 78256 184690 38308 0 3 0x4000082 thrsleep syz-execprog 38308 324915 21153 0 3 0x10008a pause ksh 21153 184557 90652 0 2 0x12 sshd 77474 182064 1 0 3 0x100083 ttyin getty 90652 445290 1 0 3 0x80 select sshd 18146 206966 72741 73 3 0x100090 kqread syslogd 72741 516 1 0 3 0x100082 netio syslogd 97808 12684 1 77 3 0x100090 poll dhclient *70662 143372 1 0 7 0 dhclient 33189 413379 0 0 2 0x14200 zerothread 46008 74930 0 0 3 0x14200 aiodoned aiodoned 83504 205623 0 0 3 0x14200 syncer update 23904 463349 0 0 3 0x14200 cleaner cleaner 96869 446359 0 0 3 0x14200 reaper reaper 89416 85885 0 0 3 0x14200 pgdaemon pagedaemon 16219 365974 0 0 3 0x14200 bored crynlk 74051 64891 0 0 3 0x14200 bored crypto 13856 115895 0 0 3 0x40014200 acpi0 acpi0 69989 175028 0 0 3 0x14200 bored softnet 79242 377480 0 0 3 0x14200 bored systqmp 70070 35588 0 0 3 0x14200 bored systq 37628 153326 0 0 3 0x40014200 bored softclock 82287 14948 0 0 3 0x40014200 idle0 41891 14847 0 0 3 0x14200 bored smr 1 391003 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 Kern Lim devbuf 9438 6318K 6320K 78643K 10539 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 63 1K 2K 78643K 157 0 0 ifaddr 24 7K 9K 78643K 91 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1180 74K 74K 78643K 1185 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1794 195K 288K 78643K 12646 0 0 file desc 1 0K 12K 78643K 76 0 0 proc 47 38K 54K 78643K 318 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 1K 78643K 22 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 171 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 59 3K 11K 78643K 899 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 3 0K 0K 78643K 6 0 0 temp 22 3521K 3585K 78643K 3148 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 2 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 11 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 1 0 1 0 8 0 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 85 0 79 1 0 1 1 0 8 0 nd6 48 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 47 11 0 11 11 0 8 2 art_table 32 168 0 47 2 0 2 2 0 8 0 art_node 16 33 0 12 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1470 0 77 45 0 45 45 0 8 0 ffsino 240 1470 0 77 82 0 82 82 0 8 0 nchpl 144 1770 0 171 60 0 60 60 0 8 0 uvmvnodes 72 1479 0 0 27 0 27 27 0 8 0 vnodes 208 1479 0 0 78 0 78 78 0 8 0 namei 1024 4084 0 4084 1 0 1 1 0 8 1 scxspl 192 4338 0 4338 2 1 1 2 0 8 1 plimitpl 152 14 0 9 1 0 1 1 0 8 0 sigapl 432 254 0 244 2 0 2 2 0 8 0 knotepl 112 39 0 34 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 128 134 0 127 1 0 1 1 0 8 0 fdescpl 424 255 0 244 2 0 2 2 0 8 0 filepl 120 1094 0 1048 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 10 1 0 1 1 0 8 0 pgrppl 48 18 0 10 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 244 0 244 1 0 1 1 0 8 1 processpl 864 269 0 244 4 0 4 4 0 8 0 procpl 632 275 0 244 3 0 3 3 0 8 0 sockpl 384 129 0 113 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 1 0 1 0 8 0 mcl2k 2048 5476 0 5444 7 2 5 7 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9585 0 9493 11 3 8 8 0 8 1 bufpl 256 5841 0 1380 279 0 279 279 0 8 0 anonpl 16 21650 0 19997 15 2 13 13 0 62 6 amapchunkpl 152 801 0 743 5 0 5 5 0 158 2 amappl16 192 372 0 334 3 0 3 3 0 8 0 amappl15 184 62 0 61 1 0 1 1 0 8 0 amappl14 176 45 0 39 1 0 1 1 0 8 0 amappl13 168 3 0 2 2 1 1 1 0 8 0 amappl12 160 11 0 8 2 1 1 1 0 8 0 amappl11 152 44 0 33 1 0 1 1 0 8 0 amappl10 144 8 0 8 2 1 1 1 0 8 1 amappl9 136 389 0 388 1 0 1 1 0 8 0 amappl8 128 109 0 100 1 0 1 1 0 8 0 amappl7 120 39 0 35 1 0 1 1 0 8 0 amappl6 112 56 0 49 1 0 1 1 0 8 0 amappl5 104 136 0 126 1 0 1 1 0 8 0 amappl4 96 483 0 461 1 0 1 1 0 8 0 amappl3 88 116 0 110 1 0 1 1 0 8 0 amappl2 80 1009 0 958 3 0 3 3 0 8 1 amappl1 72 13537 0 13159 27 10 17 20 0 8 8 amappl 80 476 0 453 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 255 0 244 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 255 0 244 1 0 1 1 0 8 0 vmmpekpl 168 6287 0 6271 1 0 1 1 0 8 0 vmmpepl 168 31173 0 30367 86 10 76 76 0 357 39 vmsppl 272 254 0 244 1 0 1 1 0 8 0 pdppl 4096 516 0 488 5 0 5 5 0 8 0 pvpl 32 109223 0 105353 113 0 113 113 0 265 81 pmappl 200 254 0 244 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 405 0 8 12 0 12 12 0 8 0