panic: rw_enter: solock locking against myself Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *157685 86348 32767 0x10 0x4000000 1K syz-executor.1 322308 68702 32767 0x10 0 0 syz-executor.2 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827e48c5) at panic+0x17b sys/kern/subr_prf.c:198 rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 sys/kern/kern_rwlock.c:273 soisconnected(fffffd80636f95b8) at soisconnected+0x243 solock sys/kern/uipc_socket2.c:352 [inline] soisconnected(fffffd80636f95b8) at soisconnected+0x243 sys/kern/uipc_socket2.c:111 unp_connect2(fffffd80636f93d0,fffffd80636f95b8) at unp_connect2+0xca unp_connect(fffffd80636f93d0,fffffd8061498500,ffff800021283330) at unp_connect+0x46d sys/kern/uipc_usrreq.c:908 sys_connect(ffff800021283330,ffff800029561300,ffff800029561350) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422 syscall(ffff8000295613d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000295613d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x282596c9b80, 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: rw_enter: solock locking against myself ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827e48c5) at panic+0x17b sys/kern/subr_prf.c:198 rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 sys/kern/kern_rwlock.c:273 soisconnected(fffffd80636f95b8) at soisconnected+0x243 solock sys/kern/uipc_socket2.c:352 [inline] soisconnected(fffffd80636f95b8) at soisconnected+0x243 sys/kern/uipc_socket2.c:111 unp_connect2(fffffd80636f93d0,fffffd80636f95b8) at unp_connect2+0xca unp_connect(fffffd80636f93d0,fffffd8061498500,ffff800021283330) at unp_connect+0x46d sys/kern/uipc_usrreq.c:908 sys_connect(ffff800021283330,ffff800029561300,ffff800029561350) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422 syscall(ffff8000295613d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000295613d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x282596c9b80, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800029560f40 rbx 0xffff800020d59b8f rdx 0 rcx 0xffff800021283330 rax 0xffff800020d58ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x600b600a857d1be0 r11 0x3ed280227cfb7081 r12 0xffff800020d59990 r13 0 r14 0 r15 0x1 rip 0xffffffff8127f59c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800029560f30 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=157685 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800021283078,0xffffffff82cd6170 process=0xffff800023315d68 user=0xffff80002955c000, vmspace=0xfffffd806fe3b938 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 14735 263976 17647 32767 2 0x10 syz-executor.7 86348 107880 47767 32767 2 0x10 syz-executor.1 86348 495599 47767 32767 3 0x4000090 fsleep syz-executor.1 *86348 157685 47767 32767 7 0x4000010 syz-executor.1 58544 177333 32082 32767 2 0x10 syz-executor.4 55301 231494 745 32767 2 0x10 syz-executor.3 55301 447867 745 32767 3 0x4000090 fsleep syz-executor.3 19358 190384 25918 32767 3 0x90 nanoslp syz-executor.0 19358 253250 25918 32767 2 0x4000010 syz-executor.0 19358 514068 25918 32767 3 0x4000090 fsleep syz-executor.0 58209 276732 85247 32767 2 0x10 syz-executor.5 58209 69675 85247 32767 3 0x4000090 fsleep syz-executor.5 58209 159929 85247 32767 3 0x4000090 fsleep syz-executor.5 85247 67644 57489 32767 3 0x90 nanoslp syz-executor.5 57489 72294 20587 0 3 0x82 wait syz-executor.5 17647 445681 77507 32767 3 0x90 nanoslp syz-executor.7 77507 458137 20587 0 3 0x82 wait syz-executor.7 41208 160030 51660 32767 3 0x90 nanoslp syz-executor.6 51660 243316 20587 0 3 0x82 wait syz-executor.6 745 372767 51541 32767 3 0x90 nanoslp syz-executor.3 51541 511743 20587 0 3 0x82 wait syz-executor.3 47767 352805 58968 32767 3 0x90 nanoslp syz-executor.1 58968 465817 20587 0 3 0x82 wait syz-executor.1 25918 297378 36941 32767 3 0x90 nanoslp syz-executor.0 36941 222059 20587 0 3 0x82 wait syz-executor.0 68702 322308 27904 32767 7 0x10 syz-executor.2 27904 305595 20587 0 3 0x82 wait syz-executor.2 32082 439106 36154 32767 3 0x90 nanoslp syz-executor.4 36154 181064 20587 0 3 0x82 wait syz-executor.4 11701 32595 0 0 3 0x14200 bored sosplice 20587 221363 87495 0 3 0x82 wait syz-fuzzer 20587 191539 87495 0 3 0x4000082 nanoslp syz-fuzzer 20587 323406 87495 0 3 0x4000082 wait syz-fuzzer 20587 158379 87495 0 3 0x4000082 wait syz-fuzzer 20587 17970 87495 0 3 0x4000082 wait syz-fuzzer 20587 594 87495 0 3 0x4000082 thrsleep syz-fuzzer 20587 418182 87495 0 3 0x4000082 thrsleep syz-fuzzer 20587 212373 87495 0 3 0x4000082 thrsleep syz-fuzzer 20587 6917 87495 0 3 0x4000082 wait syz-fuzzer 20587 265435 87495 0 3 0x4000082 thrsleep syz-fuzzer 20587 441942 87495 0 3 0x4000082 wait syz-fuzzer 20587 509688 87495 0 3 0x4000082 wait syz-fuzzer 20587 424514 87495 0 3 0x4000082 wait syz-fuzzer 20587 167451 87495 0 2 0x4000002 syz-fuzzer 20587 419838 87495 0 3 0x4000082 thrsleep syz-fuzzer 20587 28896 87495 0 3 0x4000082 kqread syz-fuzzer 87495 446916 75233 0 3 0x10008a sigsusp ksh 75233 377706 26694 0 3 0x9a kqread sshd 88998 174481 1 0 3 0x100083 ttyin getty 26694 281877 1 0 3 0x88 kqread sshd 56272 237800 62789 73 3 0x1100090 kqread syslogd 62789 63812 1 0 3 0x100082 netio syslogd 24603 58177 1 0 3 0x100080 kqread resolvd 18073 313367 16751 77 3 0x100092 kqread dhcpleased 34727 291950 16751 77 3 0x100092 kqread dhcpleased 16751 396092 1 0 3 0x80 kqread dhcpleased 29905 421342 0 0 3 0x14200 bored smr 79639 416622 0 0 2 0x14200 zerothread 37510 263283 0 0 3 0x14200 aiodoned aiodoned 34415 229450 0 0 3 0x14200 syncer update 77487 153143 0 0 3 0x14200 cleaner cleaner 98112 85069 0 0 3 0x14200 reaper reaper 61863 415072 0 0 3 0x14200 pgdaemon pagedaemon 42660 405428 0 0 3 0x14200 bored viomb 35163 183701 0 0 3 0x40014200 acpi0 acpi0 79276 81276 0 0 3 0x40014200 idle1 57558 17619 0 0 3 0x14200 bored softnet3 97359 141166 0 0 3 0x14200 bored softnet2 84171 418524 0 0 3 0x14200 bored softnet1 83429 751 0 0 3 0x14200 bored softnet0 42124 308464 0 0 3 0x14200 bored systqmp 66379 151946 0 0 3 0x14200 bored systq 22472 51412 0 0 3 0x40014200 bored softclock 46863 447545 0 0 3 0x40014200 idle0 1 203691 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 86348 (syz-executor.1) thread 0xffff800021283330 (157685) exclusive rwlock solock r = 0 (0xfffffd80636f93e8) #0 witness_lock+0x447 #1 solock_pair+0x9f solock sys/kern/uipc_socket2.c:352 [inline] #1 solock_pair+0x9f sys/kern/uipc_socket2.c:402 #2 unp_connect+0x395 sys/kern/uipc_usrreq.c:880 #3 sys_connect+0x207 sys/kern/uipc_syscalls.c:422 #4 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #4 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #5 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80697625f8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 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:1314 #8 ufs_lookup+0x122c sys/ufs/ufs/ufs_lookup.c:582 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 unp_connect+0x1ce sys/kern/uipc_usrreq.c:841 #13 sys_connect+0x207 sys/kern/uipc_syscalls.c:422 #14 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #14 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #15 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c4d620) #0 witness_lock+0x447 #1 unp_connect+0x1c6 sys/kern/uipc_usrreq.c:841 #2 sys_connect+0x207 sys/kern/uipc_syscalls.c:422 #3 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #3 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 6413K 6419K 78643K 11460 0 pcb 13 16K 20K 78643K 19 0 rtable 246 7K 7K 78643K 2470 0 pf 29 8K 8K 78643K 135 0 ifaddr 44 16K 16K 78643K 264 0 ifgroup 50 2K 2K 78643K 262 0 sysctl 3 1K 1K 78643K 3 0 counters 60 35K 35K 78643K 166 0 ioctlops 0 0K 2K 78643K 286 0 iov 0 0K 32K 78643K 3517 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 6574 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 400 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 8151 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 24 89K 125K 78643K 26387 0 sigio 0 0K 0K 78643K 353 0 proc 56 78K 115K 78643K 3360 0 subproc 104 6K 6K 78643K 793 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1115 0 in_multi 99 7K 7K 78643K 824 0 ether_multi 1 0K 0K 78643K 20 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 307 1367K 1367K 78643K 307 0 exec 0 0K 1K 78643K 4735 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 519 103K 120K 78643K 259500 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 9090 0 NDP 11 0K 2K 78643K 186 0 temp 74 5872K 6000K 78643K 67977 0 kqueue 12 18K 32K 78643K 2413 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 120 625 0 622 3 2 1 2 0 8 0 rtentry 112 737 0 621 4 0 4 4 0 8 0 unpcb 144 12564 0 12548 149 148 1 10 0 8 0 syncache 296 235 0 235 36 36 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 214 0 214 29 29 0 1 0 8 0 tcpcb 808 28262 0 28258 394 386 8 21 0 8 7 arp 120 124 0 106 1 0 1 1 0 8 0 ipq 40 55 0 55 15 14 1 1 0 8 1 ipqe 40 394 0 394 15 14 1 1 0 8 1 inpcb 368 34647 0 34640 395 386 9 19 0 8 8 nd6 136 226 0 196 2 0 2 2 0 8 0 kcovpl 48 61 0 53 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2951 0 2476 36 5 31 32 0 8 0 art_table 32 2952 0 2476 6 1 5 5 0 8 0 art_node 16 736 0 630 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 0 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 8142 0 8132 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 36017 0 34550 93 0 93 93 0 8 0 ffsino 272 36017 0 34550 99 0 99 99 0 8 0 nchpl 144 70707 0 69061 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 238177 0 238177 11 10 1 2 0 8 1 percpumem 16 96 0 53 1 0 1 1 0 8 0 kstatmem 264 128 0 106 2 0 2 2 0 8 0 scxspl 216 217831 0 217831 92 89 3 8 0 8 3 plimitpl 152 3416 0 3392 31 29 2 2 0 8 0 sigapl 424 26577 0 26523 7 0 7 7 0 8 0 futexpl 64 224290 0 224285 12 11 1 1 0 8 0 knotepl 120 1552 0 0 15 1 14 14 0 8 0 kqueuepl 216 6471 0 6463 122 117 5 8 0 8 4 pipepl 320 7158 0 7130 160 154 6 12 0 8 3 fdescpl 496 26559 0 26524 7 2 5 6 0 8 0 filepl 152 168904 0 168662 284 268 16 24 0 8 6 lockfpl 104 3369 0 3367 1 0 1 1 0 8 0 lockfspl 48 1161 0 1159 1 0 1 1 0 8 0 sessionpl 144 76 0 60 1 0 1 1 0 8 0 pgrppl 48 571 0 555 1 0 1 1 0 8 0 ucredpl 104 26163 0 26145 1 0 1 1 0 8 0 zombiepl 144 26524 0 26523 1 0 1 1 0 8 0 processpl 1072 26577 0 26523 5 1 4 5 0 8 0 procpl 696 72937 0 72861 18 10 8 9 0 8 0 sosppl 168 371 0 371 30 29 1 1 0 8 1 sockpl 488 48833 0 48801 788 775 13 35 0 8 8 mcl64k 65536 60 0 0 3 0 3 3 0 8 0 mcl16k 16384 39 0 0 4 2 2 3 0 8 0 mcl12k 12288 38 0 0 2 0 2 2 0 8 0 mcl9k 9216 31 0 0 2 0 2 2 0 8 0 mcl8k 8192 41 0 0 4 1 3 3 0 8 0 mcl4k 4096 97 0 0 6 3 3 4 0 8 0 mcl2k2 2112 13 0 0 1 0 1 1 0 8 0 mcl2k 2048 518 0 0 32 21 11 32 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 1844 0 0 62 0 62 62 0 8 0 bufpl 288 48103 0 41791 452 0 452 452 0 8 0 anonpl 24 2787397 0 2772101 250 154 96 119 0 186 0 amapchunkpl 152 849070 0 848177 254 216 38 51 0 158 1 amappl16 200 62257 0 61726 444 415 29 41 0 8 0 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 375 0 359 2 1 1 2 0 8 0 amappl13 176 32 0 30 1 0 1 1 0 8 0 amappl12 168 28027 0 27986 2 0 2 2 0 8 0 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 97 0 83 1 0 1 1 0 8 0 amappl9 144 381 0 380 2 1 1 2 0 8 0 amappl8 136 1274 0 1012 11 1 10 10 0 8 0 amappl7 128 265 0 244 1 0 1 1 0 8 0 amappl6 120 841 0 819 2 1 1 2 0 8 0 amappl5 112 887 0 881 1 0 1 1 0 8 0 amappl4 104 1868 0 1819 2 0 2 2 0 8 0 amappl3 96 159995 0 159899 13 10 3 4 0 8 0 amappl2 88 27848 0 27770 4 2 2 3 0 8 0 amappl1 80 103906 0 103378 22 10 12 22 0 8 0 amappl 88 257575 0 257307 8 1 7 8 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 26560 0 26525 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 26560 0 26525 1 0 1 1 0 8 0 vmmpekpl 168 204087 0 204023 5 1 4 4 0 8 0 vmmpepl 168 1548619 0 1545786 372 242 130 138 0 357 0 vmsppl 464 26559 0 26525 7 2 5 6 0 8 0 rwobjpl 56 386841 0 379022 138 27 111 114 0 8 0 pdppl 4096 53128 0 53050 954 872 82 96 0 8 4 pvpl 32 7766845 0 7744689 781 600 181 339 0 265 1 pmappl 248 26559 0 26525 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2552 0 1688 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82bfeff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82c4d418) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c4d418) at __mp_lock+0x129 sys/kern/kern_lock.c:147 vn_closefile(fffffd806b7b7610,ffff800021282b08) at vn_closefile+0x38 sys/kern/vfs_vnops.c:602 fdrop(fffffd806b7b7610,ffff800021282b08) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd806b7b7610,ffff800021282b08) at closef+0x120 sys/kern/kern_descrip.c:1258 syscall(ffff8000212cd670) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212cd670) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x795d0f4f78a0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff82bfeff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82c4d418) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c4d418) at __mp_lock+0x129 sys/kern/kern_lock.c:147 vn_closefile(fffffd806b7b7610,ffff800021282b08) at vn_closefile+0x38 sys/kern/vfs_vnops.c:602 fdrop(fffffd806b7b7610,ffff800021282b08) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd806b7b7610,ffff800021282b08) at closef+0x120 sys/kern/kern_descrip.c:1258 syscall(ffff8000212cd670) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212cd670) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x795d0f4f78a0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827e48c5) at panic+0x17b sys/kern/subr_prf.c:198 rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 sys/kern/kern_rwlock.c:273 soisconnected(fffffd80636f95b8) at soisconnected+0x243 solock sys/kern/uipc_socket2.c:352 [inline] soisconnected(fffffd80636f95b8) at soisconnected+0x243 sys/kern/uipc_socket2.c:111 unp_connect2(fffffd80636f93d0,fffffd80636f95b8) at unp_connect2+0xca unp_connect(fffffd80636f93d0,fffffd8061498500,ffff800021283330) at unp_connect+0x46d sys/kern/uipc_usrreq.c:908 sys_connect(ffff800021283330,ffff800029561300,ffff800029561350) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422 syscall(ffff8000295613d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000295613d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x282596c9b80, count: 6 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827e48c5) at panic+0x17b sys/kern/subr_prf.c:198 rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(fffffd80636f93d8,1) at rw_enter+0x462 sys/kern/kern_rwlock.c:273 soisconnected(fffffd80636f95b8) at soisconnected+0x243 solock sys/kern/uipc_socket2.c:352 [inline] soisconnected(fffffd80636f95b8) at soisconnected+0x243 sys/kern/uipc_socket2.c:111 unp_connect2(fffffd80636f93d0,fffffd80636f95b8) at unp_connect2+0xca unp_connect(fffffd80636f93d0,fffffd8061498500,ffff800021283330) at unp_connect+0x46d sys/kern/uipc_usrreq.c:908 sys_connect(ffff800021283330,ffff800029561300,ffff800029561350) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422 syscall(ffff8000295613d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000295613d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x282596c9b80, count: -9