panic: solock: lock not held Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *271955 13457 0 0x2 0 0 syz-executor2927269727 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8254949d) at panic+0x161 sys/kern/subr_prf.c:198 rw_assert_wrlock(fffffd806e6e9738) at rw_assert_wrlock+0xb7 sys/kern/kern_rwlock.c:388 somove(fffffd806ceddc90,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806ceddc90,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806ceddc90,3,0,0) at sosplice+0x502 sys/kern/uipc_socket.c:1346 sosetopt(fffffd806ceddc90,ffff,1023,fffffd8075748f00) at sosetopt+0x7ec sys_setsockopt(ffff8000ffff8d28,ffff80002174b348,ffff80002174b3a0) at sys_setsockopt+0x1f5 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002174b410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe63d0, count: 6 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: solock: lock not held ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8254949d) at panic+0x161 sys/kern/subr_prf.c:198 rw_assert_wrlock(fffffd806e6e9738) at rw_assert_wrlock+0xb7 sys/kern/kern_rwlock.c:388 somove(fffffd806ceddc90,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806ceddc90,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806ceddc90,3,0,0) at sosplice+0x502 sys/kern/uipc_socket.c:1346 sosetopt(fffffd806ceddc90,ffff,1023,fffffd8075748f00) at sosetopt+0x7ec sys_setsockopt(ffff8000ffff8d28,ffff80002174b348,ffff80002174b3a0) at sys_setsockopt+0x1f5 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002174b410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe63d0, count: -9 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002174b070 rbx 0xfffffd806db27e70 rdx 0x3fd rcx 0 rax 0x1d r8 0x101010101010101 r9 0x8080808080808080 r10 0x425b64e9ab0ef53b r11 0x2fe59630fd07f3c0 r12 0 r13 0xfffffd806e6e9730 r14 0 r15 0x1 rip 0xffffffff8101e5c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002174b060 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor2927269727) pid=271955 stat=onproc flags process=2 proc=0 pri=53, usrpri=53, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff9268,0xffff8000ffff87f8 process=0xffff8000ffff67e0 user=0xffff800021746000, vmspace=0xfffffd807f015550 estcpu=3, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 4655 217207 0 0 2 0x14200 sosplice *13457 271955 72723 0 7 0x2 syz-executor2927269727 72723 141816 67221 0 3 0x10008a sigsusp ksh 67221 269554 94986 0 3 0x9a kqread sshd 54694 211501 1 0 3 0x100083 ttyin getty 94986 373470 1 0 3 0x88 kqread sshd 58889 334135 37532 73 3 0x1100090 kqread syslogd 37532 191770 1 0 3 0x100082 netio syslogd 5947 204274 1 0 3 0x100080 kqread resolvd 2551 364905 29348 77 3 0x100092 kqread dhcpleased 6086 437420 29348 77 3 0x100092 kqread dhcpleased 29348 293629 1 0 3 0x80 kqread dhcpleased 25149 212412 0 0 3 0x14200 bored smr 5209 151513 0 0 2 0x14200 zerothread 40870 223450 0 0 3 0x14200 aiodoned aiodoned 61676 407395 0 0 3 0x14200 syncer update 44274 492729 0 0 3 0x14200 cleaner cleaner 63355 240026 0 0 3 0x14200 reaper reaper 649 414813 0 0 3 0x14200 pgdaemon pagedaemon 32650 455360 0 0 3 0x14200 bored viomb 32181 505583 0 0 3 0x40014200 acpi0 acpi0 77529 495739 0 0 3 0x14200 bored softnet 17943 339211 0 0 3 0x14200 bored softnet 54514 219560 0 0 3 0x14200 bored softnet 57844 150961 0 0 3 0x14200 bored softnet 28068 484160 0 0 3 0x14200 bored systqmp 77188 513171 0 0 3 0x14200 bored systq 24482 85774 0 0 3 0x40014200 bored softclock 82156 246005 0 0 3 0x40014200 idle0 1 86364 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 10144 6382K 6413K 78643K 11234 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 111 0 ifaddr 25 7K 7K 78643K 25 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 4 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 58K 59K 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 410 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 8 62K 64K 78643K 10 0 UVM amap 53 3K 5K 78643K 1311 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 18 4705K 4769K 78643K 2343 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 21 0 18 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpcb 768 9 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 336 26 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 1600 0 46 58 0 58 58 0 8 0 uvmvnodes 80 1424 0 0 30 0 30 30 0 8 0 vnodes 216 1424 0 0 80 0 80 80 0 8 0 namei 1024 4155 0 4155 2 1 1 1 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 3661 0 3661 2 1 1 2 0 8 1 plimitpl 152 15 0 9 1 0 1 1 0 8 0 sigapl 424 306 0 276 4 0 4 4 0 8 0 knotepl 120 5703 0 5674 3 1 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 288 83 0 80 2 1 1 1 0 8 0 fdescpl 432 289 0 276 2 0 2 2 0 8 0 filepl 120 1070 0 1014 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 64 0 54 1 0 1 1 0 8 0 zombiepl 144 276 0 276 2 1 1 1 0 8 1 processpl 1000 306 0 276 5 1 4 5 0 8 0 procpl 672 306 0 276 3 0 3 3 0 8 0 sosppl 168 2 0 0 1 0 1 1 0 8 0 sockpl 456 82 0 57 4 0 4 4 0 8 0 mcl8k 8192 9 0 9 2 1 1 1 0 8 1 mcl4k 4096 5 0 5 2 1 1 1 0 8 1 mcl2k 2048 5477 0 5439 8 1 7 7 0 8 1 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 10050 0 9966 7 0 7 7 0 8 1 bufpl 288 1905 0 77 131 0 131 131 0 8 0 anonpl 24 36220 0 34444 15 3 12 13 0 188 1 amapchunkpl 152 2672 0 2584 5 1 4 5 0 158 0 amappl16 200 27 0 26 2 1 1 1 0 8 0 amappl15 192 63 0 59 1 0 1 1 0 8 0 amappl13 176 32 0 31 2 1 1 1 0 8 0 amappl12 168 3 0 3 2 1 1 1 0 8 1 amappl11 160 60 0 47 1 0 1 1 0 8 0 amappl9 144 469 0 467 1 0 1 1 0 8 0 amappl8 136 350 0 349 2 1 1 1 0 8 0 amappl7 128 62 0 55 1 0 1 1 0 8 0 amappl6 120 82 0 76 1 0 1 1 0 8 0 amappl5 112 85 0 76 1 0 1 1 0 8 0 amappl4 104 587 0 567 1 0 1 1 0 8 0 amappl3 96 426 0 403 1 0 1 1 0 8 0 amappl2 88 301 0 274 1 0 1 1 0 8 0 amappl1 80 9059 0 8676 11 2 9 9 0 8 0 amappl 88 1045 0 1009 1 0 1 1 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 24 289 0 276 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 289 0 276 1 0 1 1 0 8 0 vmmpekpl 168 5992 0 5978 1 0 1 1 0 8 0 vmmpepl 168 25757 0 24976 41 3 38 39 0 357 3 vmsppl 272 288 0 276 2 1 1 2 0 8 0 rwobjpl 24 9281 0 7333 13 0 13 13 0 8 0 pdppl 4096 584 0 552 55 23 32 40 0 8 0 pvpl 32 120098 0 116477 36 3 33 33 0 265 3 pmappl 216 288 0 276 1 0 1 1 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 393 0 31 11 0 11 11 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:437 panic(ffffffff8254949d) at panic+0x161 sys/kern/subr_prf.c:198 rw_assert_wrlock(fffffd806e6e9738) at rw_assert_wrlock+0xb7 sys/kern/kern_rwlock.c:388 somove(fffffd806ceddc90,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806ceddc90,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806ceddc90,3,0,0) at sosplice+0x502 sys/kern/uipc_socket.c:1346 sosetopt(fffffd806ceddc90,ffff,1023,fffffd8075748f00) at sosetopt+0x7ec sys_setsockopt(ffff8000ffff8d28,ffff80002174b348,ffff80002174b3a0) at sys_setsockopt+0x1f5 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002174b410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe63d0, count: -9 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8254949d) at panic+0x161 sys/kern/subr_prf.c:198 rw_assert_wrlock(fffffd806e6e9738) at rw_assert_wrlock+0xb7 sys/kern/kern_rwlock.c:388 somove(fffffd806ceddc90,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806ceddc90,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806ceddc90,3,0,0) at sosplice+0x502 sys/kern/uipc_socket.c:1346 sosetopt(fffffd806ceddc90,ffff,1023,fffffd8075748f00) at sosetopt+0x7ec sys_setsockopt(ffff8000ffff8d28,ffff80002174b348,ffff80002174b3a0) at sys_setsockopt+0x1f5 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002174b410) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe63d0, count: -9 ddb>