Warning: Permanently added '10.128.0.237' (ED25519) to the list of known hosts. executing program panic: unix: lock not held Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *215936 26110 0 0x8000002 0 0 syz-executor1534187535 db_enter() at db_enter+0x1c panic(ffffffff82865988) at panic+0x165 rw_assert_wrlock(fffffd806ed125c8) at rw_assert_wrlock+0xb7 filt_soread(fffffd807474bbb8,0) at filt_soread+0x123 knote_locked(fffffd806ed126e0,0) at knote_locked+0x78 sowakeup(fffffd806ed125c0,fffffd806ed12670) at sowakeup+0x82 sorwakeup(fffffd806ed125c0) at sorwakeup+0xfb uipc_dgram_send(fffffd80760e8b88,fffffd806d281e00,fffffd806d281300,0) at uipc_dgram_send+0x1b7 sosend(fffffd80760e8b88,fffffd806d281300,ffff80002a61ce48,0,0,0) at sosend+0x663 sendit(ffff80002a5d72a0,5,ffff80002a61cfc0,0,ffff80002a61d070) at sendit+0x555 sys_sendmsg(ffff80002a5d72a0,ffff80002a61d120,ffff80002a61d070) at sys_sendmsg+0x19e syscall(ffff80002a61d120) at syscall+0x538 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70c00c0ee8b0, count: 2 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 *cpu0: unix: lock not held ddb> trace db_enter() at db_enter+0x1c panic(ffffffff82865988) at panic+0x165 rw_assert_wrlock(fffffd806ed125c8) at rw_assert_wrlock+0xb7 filt_soread(fffffd807474bbb8,0) at filt_soread+0x123 knote_locked(fffffd806ed126e0,0) at knote_locked+0x78 sowakeup(fffffd806ed125c0,fffffd806ed12670) at sowakeup+0x82 sorwakeup(fffffd806ed125c0) at sorwakeup+0xfb uipc_dgram_send(fffffd80760e8b88,fffffd806d281e00,fffffd806d281300,0) at uipc_dgram_send+0x1b7 sosend(fffffd80760e8b88,fffffd806d281300,ffff80002a61ce48,0,0,0) at sosend+0x663 sendit(ffff80002a5d72a0,5,ffff80002a61cfc0,0,ffff80002a61d070) at sendit+0x555 sys_sendmsg(ffff80002a5d72a0,ffff80002a61d120,ffff80002a61d070) at sys_sendmsg+0x19e syscall(ffff80002a61d120) at syscall+0x538 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70c00c0ee8b0, count: -13 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a61cab0 rbx 0xffffffff82ca5ff0 cpu_info_full_primary+0x1ff0 rdx 0x3fd rcx 0 rax 0x1b r8 0x101010101010101 r9 0x8080808080808080 r10 0x744e97e1a276d896 r11 0xb4281dedd6b4dbfa r12 0 r13 0 r14 0 r15 0x1 rip 0xffffffff811a086c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a61caa0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb> show proc PROC (syz-executor1534187535) tid=215936 pid=26110 tcnt=1 stat=onproc flags process=8000002 proc=0 runpri=17, usrpri=52, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a5d6008,0xffffffff82e14630 process=0xffff8000ffff69f0 user=0xffff80002a618000, vmspace=0xfffffd80074a2000 estcpu=2, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *26110 215936 35576 0 7 0x8000002 syz-executor1534187535 35576 240061 45440 0 3 0x810008a sigsusp ksh 45440 370183 15785 0 3 0x1800009a kqread sshd 45793 354489 1 0 3 0x18100083 ttyin getty 15785 213817 1 0 3 0x18000088 kqread sshd 41307 358715 29069 73 3 0x19100090 kqread syslogd 29069 184757 1 0 3 0x18100082 netio syslogd 16457 468889 1 0 3 0x18100080 kqread resolvd 61778 248055 38398 77 3 0x18100092 kqread dhcpleased 30627 512430 38398 77 3 0x18100092 kqread dhcpleased 38398 52547 1 0 3 0x18000080 kqread dhcpleased 97015 108940 0 0 3 0x14200 bored smr 66159 17835 0 0 3 0x14200 pgzero zerothread 86816 115960 0 0 3 0x14200 aiodoned aiodoned 92801 104633 0 0 3 0x14200 syncer update 26390 15979 0 0 3 0x14200 cleaner cleaner 11696 58498 0 0 3 0x14200 reaper reaper 22833 398391 0 0 3 0x14200 pgdaemon pagedaemon 54567 286057 0 0 3 0x14200 bored viomb 34170 417224 0 0 3 0x40014200 acpi0 acpi0 32243 264711 0 0 3 0x14200 bored softnet3 96098 372896 0 0 3 0x14200 bored softnet2 57812 400789 0 0 3 0x14200 bored softnet1 87376 31174 0 0 3 0x14200 bored softnet0 69130 52153 0 0 3 0x14200 bored systqmp 30157 406578 0 0 3 0x14200 bored systq 57599 69185 0 0 3 0x40014200 tmoslp softclock 6199 30174 0 0 3 0x40014200 idle0 1 213137 0 0 3 0x8000082 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 10137 6382K 6413K 166960K 11215 0 pcb 15 10K 10K 166960K 15 0 rtable 58 1K 2K 166960K 112 0 pf 12 6K 6K 166960K 12 0 ifaddr 11 5K 5K 166960K 11 0 ifgroup 17 1K 1K 166960K 17 0 counters 22 16K 16K 166960K 22 0 ioctlops 0 0K 2K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1259 79K 79K 166960K 1275 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 1 0K 0K 166960K 1 0 proc 55 58K 59K 166960K 246 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 11 0K 0K 166960K 11 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 246 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 94 4K 5K 166960K 2132 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 21 42K 48K 166960K 849 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 3 0K 0K 166960K 3 0 temp 1 6788K 6852K 166960K 3236 0 kqueue 12 18K 18K 166960K 25 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 21 0 18 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 36 0 21 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 18 0 18 1 0 1 1 0 8 1 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 360 26 0 20 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 1503 0 40 92 0 92 92 0 8 0 ffsino 240 1503 0 40 87 0 87 87 0 8 0 nchpl 144 1687 0 47 61 0 61 61 0 8 0 uvmvnodes 80 1512 0 0 31 0 31 31 0 8 0 vnodes 216 1512 0 0 84 0 84 84 0 8 0 namei 1024 4358 0 4358 1 0 1 1 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 5178 0 5178 2 0 2 2 1 8 2 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 311 0 282 4 0 4 4 0 8 0 knotepl 120 7366 0 7336 2 0 2 2 0 8 1 kqueuepl 184 21 0 13 1 0 1 1 0 8 0 pipepl 288 88 0 85 1 0 1 1 0 8 0 fdescpl 432 295 0 282 2 0 2 2 0 8 0 filepl 120 1139 0 1084 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 104 66 0 56 1 0 1 1 0 8 0 zombiepl 144 282 0 282 1 0 1 1 0 8 1 processpl 1072 311 0 282 3 0 3 3 0 8 0 procpl 680 311 0 282 3 0 3 3 0 8 0 sockpl 488 83 0 59 4 0 4 4 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 12161 0 12121 26 12 14 26 0 8 8 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 20074 0 20025 15 4 11 15 0 8 7 bufpl 280 2474 0 89 171 0 171 171 0 8 0 anonpl 24 134257 0 132462 23 0 23 23 0 188 12 amapchunkpl 152 7439 0 7308 7 0 7 7 0 158 1 amappl16 200 3216 0 3215 4 0 4 4 0 8 3 amappl15 192 8 0 8 1 0 1 1 0 8 1 amappl14 184 97 0 88 1 0 1 1 0 8 0 amappl13 176 12 0 12 1 0 1 1 0 8 1 amappl12 168 794 0 782 1 0 1 1 0 8 0 amappl11 160 52 0 42 1 0 1 1 0 8 0 amappl10 152 16 0 16 1 0 1 1 0 8 1 amappl9 144 95 0 95 1 0 1 1 0 8 1 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 14 0 12 1 0 1 1 0 8 0 amappl6 120 162 0 151 1 0 1 1 0 8 0 amappl5 112 115 0 103 1 0 1 1 0 8 0 amappl4 104 389 0 362 1 0 1 1 0 8 0 amappl3 96 2484 0 2458 1 0 1 1 0 8 0 amappl2 88 575 0 525 2 0 2 2 0 8 0 amappl1 80 8800 0 8396 10 0 10 10 0 8 0 amappl 88 1828 0 1780 2 0 2 2 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 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 24 295 0 282 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 295 0 282 1 0 1 1 0 8 0 vmmpekpl 168 5627 0 5610 1 0 1 1 0 8 0 vmmpepl 168 32251 0 31353 46 0 46 46 0 357 1 vmsppl 352 294 0 282 2 0 2 2 0 8 0 rwobjpl 24 16955 0 14842 14 0 14 14 0 8 0 pdppl 4096 596 0 564 48 14 34 40 0 8 2 pvpl 32 226188 0 222145 50 0 50 50 0 265 14 pmappl 216 294 0 282 1 0 1 1 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 290 0 30 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x1c panic(ffffffff82865988) at panic+0x165 rw_assert_wrlock(fffffd806ed125c8) at rw_assert_wrlock+0xb7 filt_soread(fffffd807474bbb8,0) at filt_soread+0x123 knote_locked(fffffd806ed126e0,0) at knote_locked+0x78 sowakeup(fffffd806ed125c0,fffffd806ed12670) at sowakeup+0x82 sorwakeup(fffffd806ed125c0) at sorwakeup+0xfb uipc_dgram_send(fffffd80760e8b88,fffffd806d281e00,fffffd806d281300,0) at uipc_dgram_send+0x1b7 sosend(fffffd80760e8b88,fffffd806d281300,ffff80002a61ce48,0,0,0) at sosend+0x663 sendit(ffff80002a5d72a0,5,ffff80002a61cfc0,0,ffff80002a61d070) at sendit+0x555 sys_sendmsg(ffff80002a5d72a0,ffff80002a61d120,ffff80002a61d070) at sys_sendmsg+0x19e syscall(ffff80002a61d120) at syscall+0x538 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70c00c0ee8b0, count: -13 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x1c panic(ffffffff82865988) at panic+0x165 rw_assert_wrlock(fffffd806ed125c8) at rw_assert_wrlock+0xb7 filt_soread(fffffd807474bbb8,0) at filt_soread+0x123 knote_locked(fffffd806ed126e0,0) at knote_locked+0x78 sowakeup(fffffd806ed125c0,fffffd806ed12670) at sowakeup+0x82 sorwakeup(fffffd806ed125c0) at sorwakeup+0xfb uipc_dgram_send(fffffd80760e8b88,fffffd806d281e00,fffffd806d281300,0) at uipc_dgram_send+0x1b7 sosend(fffffd80760e8b88,fffffd806d281300,ffff80002a61ce48,0,0,0) at sosend+0x663 sendit(ffff80002a5d72a0,5,ffff80002a61cfc0,0,ffff80002a61d070) at sendit+0x555 sys_sendmsg(ffff80002a5d72a0,ffff80002a61d120,ffff80002a61d070) at sys_sendmsg+0x19e syscall(ffff80002a61d120) at syscall+0x538 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70c00c0ee8b0, count: -13 ddb>