panic: lock (rwlock) solock not locked Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 269110 41966 32767 0x10 0 0 syz-executor.0 * 10631 41966 32767 0x10 0x4000000 1K syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82585177) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd8066bb57f8,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd8067f60218,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd8067f60218,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd8067f60218,3,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd8067f60218,ffff,1023,fffffd8063a79d00) at sosetopt+0x7f4 sys_setsockopt(ffff8000ffff0540,ffff80002e4fc908,ffff80002e4fc950) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002e4fc9d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4fc9d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd772e7cfe00, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: lock (rwlock) solock not locked ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82585177) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd8066bb57f8,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd8067f60218,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd8067f60218,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd8067f60218,3,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd8067f60218,ffff,1023,fffffd8063a79d00) at sosetopt+0x7f4 sys_setsockopt(ffff8000ffff0540,ffff80002e4fc908,ffff80002e4fc950) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002e4fc9d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4fc9d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd772e7cfe00, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e4fc600 rbx 0xffff800020dd9b8f rdx 0xffff800000bd0500 rcx 0 rax 0xffff8000ffff0540 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9e33edd97b8ae01b r11 0xf013476ade5d6d10 r12 0xffff800020dd9990 r13 0 r14 0 r15 0x1 rip 0xffffffff81fd76c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e4fc5f0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=10631 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800024363510,0xffff8000ffff1a50 process=0xffff80002617e9a8 user=0xffff80002e4f7000, vmspace=0xfffffd806f17f8a8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10656 110115 2243 32767 2 0x10 syz-executor.6 10656 217910 2243 32767 3 0x4000090 netio syz-executor.6 10656 63673 2243 32767 3 0x4000090 fsleep syz-executor.6 35987 95409 63435 32767 2 0x10 syz-executor.1 35987 198668 63435 32767 3 0x4000090 fsleep syz-executor.1 41966 269110 94487 32767 7 0x10 syz-executor.0 *41966 10631 94487 32767 7 0x4000010 syz-executor.0 51457 412563 33290 32767 2 0x10 syz-executor.3 63435 340676 36513 32767 3 0x90 nanoslp syz-executor.1 36513 172398 35118 0 3 0x82 wait syz-executor.1 2243 195535 96069 32767 3 0x90 nanoslp syz-executor.6 96069 482798 35118 0 3 0x82 wait syz-executor.6 33290 514016 30828 32767 3 0x90 nanoslp syz-executor.3 30828 317314 35118 0 3 0x82 wait syz-executor.3 87701 95194 50723 32767 3 0x90 nanoslp syz-executor.2 50723 12138 35118 0 3 0x82 wait syz-executor.2 67015 390897 0 0 3 0x14200 bored sosplice 94655 465110 63974 32767 2 0x10 syz-executor.7 63974 232745 35118 0 3 0x82 wait syz-executor.7 49370 82985 70159 32767 3 0x10 biowait syz-executor.5 70159 163767 35118 0 3 0x82 wait syz-executor.5 53419 499859 76028 32767 3 0x90 nanoslp syz-executor.4 76028 22280 35118 0 3 0x82 wait syz-executor.4 94487 283580 44617 32767 3 0x90 nanoslp syz-executor.0 44617 217864 35118 0 3 0x82 wait syz-executor.0 35118 97686 77755 0 3 0x82 wait syz-fuzzer 35118 167179 77755 0 3 0x4000082 nanoslp syz-fuzzer 35118 521844 77755 0 3 0x4000082 thrsleep syz-fuzzer 35118 394897 77755 0 3 0x4000082 thrsleep syz-fuzzer 35118 97393 77755 0 3 0x4000082 wait syz-fuzzer 35118 167798 77755 0 3 0x4000082 wait syz-fuzzer 35118 420934 77755 0 3 0x4000082 kqread syz-fuzzer 35118 160483 77755 0 3 0x4000082 thrsleep syz-fuzzer 35118 482916 77755 0 3 0x4000082 thrsleep syz-fuzzer 35118 493063 77755 0 3 0x4000082 wait syz-fuzzer 35118 169811 77755 0 3 0x4000082 wait syz-fuzzer 35118 114956 77755 0 3 0x4000082 thrsleep syz-fuzzer 35118 72170 77755 0 3 0x4000082 wait syz-fuzzer 35118 343433 77755 0 3 0x4000082 wait syz-fuzzer 35118 193219 77755 0 3 0x4000082 thrsleep syz-fuzzer 35118 337867 77755 0 3 0x4000082 wait syz-fuzzer 77755 264586 11924 0 3 0x10008a sigsusp ksh 11924 241921 93361 0 3 0x9a kqread sshd 59690 363944 1 0 3 0x100083 ttyin getty 93361 442456 1 0 3 0x88 kqread sshd 71750 514687 61241 73 3 0x1100090 kqread syslogd 61241 349892 1 0 3 0x100082 netio syslogd 38982 419866 1 0 3 0x100080 kqread resolvd 7830 207818 8075 77 3 0x100092 kqread dhcpleased 23672 256770 8075 77 3 0x100092 kqread dhcpleased 8075 462612 1 0 3 0x80 kqread dhcpleased 65233 141852 0 0 3 0x14200 bored smr 85497 134698 0 0 2 0x14200 zerothread 76496 445868 0 0 3 0x14200 aiodoned aiodoned 76766 186189 0 0 3 0x14200 syncer update 41433 50119 0 0 3 0x14200 cleaner cleaner 16843 90853 0 0 3 0x14200 reaper reaper 22400 452595 0 0 3 0x14200 pgdaemon pagedaemon 65247 504748 0 0 3 0x14200 bored viomb 30618 13713 0 0 3 0x40014200 acpi0 acpi0 80509 334052 0 0 3 0x40014200 idle1 36212 235709 0 0 3 0x14200 bored softnet 44936 330417 0 0 3 0x14200 bored softnet 3714 127831 0 0 3 0x14200 bored softnet 40733 390973 0 0 3 0x14200 bored softnet 161 21108 0 0 3 0x14200 bored systqmp 32167 488441 0 0 3 0x14200 bored systq 45733 316643 0 0 3 0x40014200 bored softclock 49621 121451 0 0 3 0x40014200 idle0 1 60648 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 41966 (syz-executor.0) thread 0xffff8000ffff0540 (10631) exclusive rwlock netlock r = 0 (0xffffffff82971a40) #0 witness_lock+0x44d #1 sys_setsockopt+0x1de sys/kern/uipc_syscalls.c:1233 #2 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #2 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #3 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a8d100) #0 witness_lock+0x44d #1 syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline] #1 syscall+0x41d sys/arch/amd64/amd64/trap.c:585 #2 Xsyscall+0x128 Process 49370 (syz-executor.5) thread 0xffff8000243637b0 (82985) exclusive rrwlock inode r = 0 (0xfffffd806e7c8b40) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:560 #11 namei+0x36a sys/kern/vfs_lookup.c:244 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #13 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806537a700) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #8 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 6412K 6420K 78643K 11341 0 pcb 13 12K 14K 78643K 17 0 rtable 244 6K 7K 78643K 3143 0 ifaddr 82 17K 17K 78643K 163 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 35K 78643K 78 0 ioctlops 0 0K 2K 78643K 315 0 iov 1 0K 24K 78643K 2542 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1271 79K 79K 78643K 4394 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 146 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 3037 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 22 81K 109K 78643K 14025 0 sigio 0 0K 0K 78643K 1679 0 proc 56 78K 103K 78643K 1712 0 subproc 104 6K 6K 78643K 247 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1131 0 in_multi 99 6K 7K 78643K 413 0 ether_multi 1 0K 0K 78643K 56 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 241 1076K 1076K 78643K 241 0 exec 0 0K 2K 78643K 2865 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 368 93K 988K 78643K 87633 0 UVM aobj 131 6K 6K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 444 0 NDP 11 0K 2K 78643K 60 0 temp 124 4726K 4854K 78643K 36290 0 kqueue 12 18K 30K 78643K 1381 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 3341 0 3338 45 44 1 5 0 8 0 rtentry 112 256 0 141 4 0 4 4 0 8 0 unpcb 144 15395 0 15376 128 122 6 10 0 8 5 syncache 296 180 0 180 34 34 0 1 0 8 0 tcpqe 32 61 0 61 24 24 0 1 0 8 0 tcpcb 768 6018 0 6007 198 196 2 33 0 8 0 arp 120 45 0 26 1 0 1 1 0 8 0 ipq 40 35 0 35 14 14 0 1 0 8 0 ipqe 40 176 0 176 14 14 0 1 0 8 0 inpcb 368 28231 0 28217 231 221 10 17 0 8 8 nd6 48 76 0 48 1 0 1 1 0 8 0 kcovpl 48 19 0 11 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 994 0 518 30 0 30 30 0 8 0 art_table 32 995 0 518 4 0 4 4 0 8 0 art_node 16 255 0 150 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semapl 112 3031 0 3021 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 20881 0 19402 93 0 93 93 0 8 0 ffsino 272 20881 0 19402 99 0 99 99 0 8 0 nchpl 144 39723 0 38087 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 135330 0 135330 10 9 1 2 0 8 1 percpumem 16 51 0 11 1 0 1 1 0 8 0 kstatmem 264 44 0 22 2 0 2 2 0 8 0 scxspl 216 126632 0 126631 53 51 2 8 0 8 1 plimitpl 152 3650 0 3628 9 8 1 2 0 8 0 sigapl 424 14285 0 14232 7 0 7 7 0 8 0 futexpl 64 134677 0 134675 9 8 1 1 0 8 0 knotepl 120 1084 0 0 20 8 12 17 0 8 0 kqueuepl 216 5058 0 5050 88 83 5 8 0 8 4 pipepl 320 4274 0 4246 99 95 4 13 0 8 1 fdescpl 496 14267 0 14234 7 2 5 6 0 8 0 filepl 152 119102 0 118860 179 162 17 22 0 8 7 lockfpl 104 1942 0 1940 2 1 1 2 0 8 0 lockfspl 48 620 0 618 1 0 1 1 0 8 0 sessionpl 144 34 0 18 1 0 1 1 0 8 0 pgrppl 48 405 0 389 1 0 1 1 0 8 0 ucredpl 104 19057 0 19039 1 0 1 1 0 8 0 zombiepl 144 14234 0 14232 4 3 1 1 0 8 0 processpl 1064 14285 0 14232 4 0 4 4 0 8 0 procpl 672 43028 0 42956 33 25 8 9 0 8 1 sosppl 168 191 0 189 23 22 1 1 0 8 0 sockpl 488 47381 0 47345 801 788 13 36 0 8 8 mcl64k 65536 41 0 0 3 0 3 3 0 8 0 mcl16k 16384 49 0 0 7 4 3 3 0 8 0 mcl12k 12288 42 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 26 0 0 3 0 3 3 0 8 0 mcl4k 4096 74 0 0 7 3 4 6 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 628 0 0 45 17 28 41 0 8 0 mtagpl 96 25 0 0 1 0 1 1 0 8 0 mbufpl 256 9402 0 0 545 0 545 545 0 8 0 bufpl 288 26940 0 20610 453 0 453 453 0 8 0 anonpl 24 2908184 0 2895190 287 178 109 138 0 186 6 amapchunkpl 152 518554 0 517919 4509 4480 29 4418 0 158 1 amappl16 200 43547 0 43162 236 206 30 34 0 8 8 amappl15 192 4891 0 4878 1 0 1 1 0 8 0 amappl14 184 1883 0 1874 1 0 1 1 0 8 0 amappl13 176 714 0 710 1 0 1 1 0 8 0 amappl12 168 1217 0 1213 1 0 1 1 0 8 0 amappl11 160 105 0 90 1 0 1 1 0 8 0 amappl10 152 2687 0 2678 1 0 1 1 0 8 0 amappl9 144 4434 0 4429 1 0 1 1 0 8 0 amappl8 136 1307 0 1140 6 0 6 6 0 8 0 amappl7 128 277 0 257 1 0 1 1 0 8 0 amappl6 120 4198 0 4178 2 1 1 2 0 8 0 amappl5 112 13963 0 13939 1 0 1 1 0 8 0 amappl4 104 2468 0 2431 2 0 2 2 0 8 0 amappl3 96 46102 0 46043 2 0 2 2 0 8 0 amappl2 88 2999 0 2956 11 10 1 2 0 8 0 amappl1 80 357590 0 356892 22 5 17 19 0 8 0 amappl 88 86272 0 86086 6 1 5 6 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 14267 0 14234 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 14267 0 14234 1 0 1 1 0 8 0 vmmpekpl 168 120624 0 120566 3 0 3 3 0 8 0 vmmpepl 168 1412925 0 1410218 302 159 143 145 0 357 10 vmsppl 368 14266 0 14234 4 0 4 4 0 8 0 rwobjpl 56 358994 0 351465 125 14 111 111 0 8 2 pdppl 4096 28541 0 28468 456 375 81 89 0 8 8 pvpl 32 5768126 0 5749919 627 436 191 288 0 265 23 pmappl 248 14266 0 14234 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1993 0 631 40 0 40 40 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff829b9ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a8cef8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a8cef8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800023f4e720,ffff80000004bd00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f end of kernel end trace frame: 0x7f7ffffc5a60, count: 9 ddb{0}> trace x86_ipi_db(ffffffff829b9ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a8cef8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a8cef8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800023f4e720,ffff80000004bd00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f end of kernel end trace frame: 0x7f7ffffc5a60, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82585177) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd8066bb57f8,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd8067f60218,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd8067f60218,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd8067f60218,3,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd8067f60218,ffff,1023,fffffd8063a79d00) at sosetopt+0x7f4 sys_setsockopt(ffff8000ffff0540,ffff80002e4fc908,ffff80002e4fc950) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002e4fc9d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4fc9d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd772e7cfe00, count: 6 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82585177) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd8066bb57f8,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd8067f60218,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd8067f60218,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd8067f60218,3,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd8067f60218,ffff,1023,fffffd8063a79d00) at sosetopt+0x7f4 sys_setsockopt(ffff8000ffff0540,ffff80002e4fc908,ffff80002e4fc950) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002e4fc9d0) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002e4fc9d0) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd772e7cfe00, count: -9