panic: assertwaitok: non-zero mutex count: 1 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 108863 43003 32767 0x10 0x4000000 1 syz-executor.4 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827be81d) at panic+0x17b sys/kern/subr_prf.c:198 assertwaitok() at assertwaitok+0x132 sys/kern/subr_xxx.c:163 mi_switch() at mi_switch+0x46 sys/kern/sched_bsd.c:360 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 rwsleep(fffffd8068721710,ffffffff82bf45f0,118,ffffffff827aa62f,0) at rwsleep+0xab sys/kern/kern_synch.c:300 sosleep_nsec(fffffd80687215f0,fffffd8068721710,118,ffffffff827aa62f,ffffffffffffffff) at sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 sblock(fffffd80687215f0,fffffd80687216c0,1) at sblock+0x1c4 sys/kern/uipc_socket2.c:514 soreceive(fffffd80687215f0,ffff80002a244af8,ffff80002a244ab8,0,ffff80002a244af0,ffff80002a244c7c,8aae41361e442094) at soreceive+0x5fe sys/kern/uipc_socket.c:837 recvit(ffff80002bcd5550,3,ffff80002a244c50,0,ffff80002a244c48) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002bcd5550,ffff80002a244d50,ffff80002a244da0) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff80002a244e20) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff80002a244e20) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc931e0ea560, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: assertwaitok: non-zero mutex count: 1 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827be81d) at panic+0x17b sys/kern/subr_prf.c:198 assertwaitok() at assertwaitok+0x132 sys/kern/subr_xxx.c:163 mi_switch() at mi_switch+0x46 sys/kern/sched_bsd.c:360 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 rwsleep(fffffd8068721710,ffffffff82bf45f0,118,ffffffff827aa62f,0) at rwsleep+0xab sys/kern/kern_synch.c:300 sosleep_nsec(fffffd80687215f0,fffffd8068721710,118,ffffffff827aa62f,ffffffffffffffff) at sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 sblock(fffffd80687215f0,fffffd80687216c0,1) at sblock+0x1c4 sys/kern/uipc_socket2.c:514 soreceive(fffffd80687215f0,ffff80002a244af8,ffff80002a244ab8,0,ffff80002a244af0,ffff80002a244c7c,8aae41361e442094) at soreceive+0x5fe sys/kern/uipc_socket.c:837 recvit(ffff80002bcd5550,3,ffff80002a244c50,0,ffff80002a244c48) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002bcd5550,ffff80002a244d50,ffff80002a244da0) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff80002a244e20) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff80002a244e20) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc931e0ea560, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a244660 rbx 0xffffffff82ba3ba7 cpu_info_full_primary+0x2ba7 rdx 0 rcx 0xffff80002bcd5550 rax 0xffffffff82ba2ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8cfd1079e0e96b8e r11 0xfc9f4638f3dcfa82 r12 0xffffffff82ba39a8 cpu_info_full_primary+0x29a8 r13 0 r14 0 r15 0x1 rip 0xffffffff8100cdec db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a244650 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.4) tid=254819 pid=43003 tcnt=4 stat=sleep flags process=10 proc=4000080 runpri=24, usrpri=79, slppri=24, nice=20 wchan=0xfffffd8068721710, wmesg=netlck, ps_single=0x0 forw=0x0, list=0xffff80002a204ab0,0xffff80002bcd5808 process=0xffff8000ffff94f8 user=0xffff80002a23f000, vmspace=0xfffffd8069e4a1f0 estcpu=29, cpticks=0, pctcpu=0.1, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 43003 196993 82159 32767 2 0x10 syz-executor.4 43003 108863 82159 32767 7 0x4000010 syz-executor.4 *43003 254819 82159 32767 3 0x4000090 netlck syz-executor.4 43003 313658 82159 32767 2 0x4000090 syz-executor.4 65280 131647 83559 32767 3 0x90 piperd syz-executor.5 83559 494338 46681 0 3 0x82 wait syz-executor.5 91719 208497 6311 32767 3 0x90 piperd syz-executor.7 6311 497292 46681 0 3 0x82 wait syz-executor.7 79987 129995 92316 32767 3 0x90 piperd syz-executor.6 92316 310105 46681 0 3 0x82 wait syz-executor.6 77635 147833 0 0 3 0x14200 bored sosplice 15362 392864 96790 32767 3 0x90 piperd syz-executor.3 96790 47549 46681 0 3 0x82 wait syz-executor.3 82159 443002 617 32767 3 0x90 nanoslp syz-executor.4 99853 6158 58218 32767 3 0x90 piperd syz-executor.2 41356 83911 12490 32767 3 0x90 piperd syz-executor.1 12490 370063 46681 0 3 0x82 wait syz-executor.1 58218 410847 46681 0 3 0x82 wait syz-executor.2 617 368669 46681 0 3 0x82 wait syz-executor.4 46681 186279 8268 0 3 0x2000082 thrsleep syz-fuzzer 46681 274574 8268 0 3 0x6000082 thrsleep syz-fuzzer 46681 55035 8268 0 3 0x6000082 wait syz-fuzzer 46681 165836 8268 0 3 0x6000082 thrsleep syz-fuzzer 46681 395299 8268 0 3 0x6000082 wait syz-fuzzer 46681 46937 8268 0 3 0x6000082 wait syz-fuzzer 46681 457290 8268 0 3 0x6000082 thrsleep syz-fuzzer 46681 399308 8268 0 3 0x6000082 thrsleep syz-fuzzer 46681 48262 8268 0 3 0x6000082 thrsleep syz-fuzzer 46681 246339 8268 0 3 0x6000082 thrsleep syz-fuzzer 46681 23814 8268 0 3 0x6000082 wait syz-fuzzer 46681 411293 8268 0 3 0x6000082 kqread syz-fuzzer 46681 454751 8268 0 3 0x6000082 wait syz-fuzzer 46681 234792 8268 0 3 0x6000082 wait syz-fuzzer 46681 401735 8268 0 3 0x6000082 wait syz-fuzzer 8268 474457 37743 0 3 0x10008a sigsusp ksh 37743 502504 36054 0 3 0x9a kqread sshd 75644 121605 1 0 3 0x100083 ttyin getty 36054 494265 1 0 3 0x88 kqread sshd 22379 23952 3544 73 3 0x1100090 kqread syslogd 3544 364183 1 0 3 0x100082 netio syslogd 24211 273761 1 0 3 0x100080 kqread resolvd 77380 285071 91563 77 3 0x100092 kqread dhcpleased 31789 130412 91563 77 3 0x100092 kqread dhcpleased 91563 156371 1 0 3 0x80 kqread dhcpleased 42971 122007 0 0 3 0x14200 bored smr 72357 94851 0 0 3 0x14200 pgzero zerothread 71795 366656 0 0 3 0x14200 aiodoned aiodoned 31388 426457 0 0 3 0x14200 syncer update 78043 404141 0 0 3 0x14200 cleaner cleaner 49295 441930 0 0 3 0x14200 reaper reaper 68636 130010 0 0 3 0x14200 pgdaemon pagedaemon 28546 31975 0 0 3 0x14200 bored viomb 50355 190166 0 0 3 0x40014200 acpi0 acpi0 61761 101512 0 0 3 0x40014200 idle1 14598 419494 0 0 3 0x14200 bored softnet3 47925 69375 0 0 3 0x14200 bored softnet2 18898 522706 0 0 3 0x14200 bored softnet1 7701 219746 0 0 3 0x14200 bored softnet0 96218 512500 0 0 3 0x14200 bored systqmp 55614 378097 0 0 3 0x14200 bored systq 26355 312534 0 0 3 0x14200 tmoslp softclockmp 96851 509431 0 0 3 0x40014200 tmoslp softclock 49550 507743 0 0 3 0x40014200 idle0 1 190990 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82caf9d8) #0 witness_lock+0x447 #1 sleep_finish+0x142 sys/kern/kern_synch.c:398 #2 rwsleep+0xab sys/kern/kern_synch.c:300 #3 sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 #4 sblock+0x1c4 sys/kern/uipc_socket2.c:514 #5 soreceive+0x5fe sys/kern/uipc_socket.c:837 #6 recvit+0x31b sys/kern/uipc_syscalls.c:1082 #7 sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 #8 syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] #8 syscall+0x50f sys/arch/amd64/amd64/trap.c:606 #9 Xsyscall+0x128 exclusive mutex &inp->inp_mtx r = 0 (0xfffffd8067e72c68) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 soreceive+0x5dc pru_lock sys/sys/protosw.h:288 [inline] #3 soreceive+0x5dc sys/kern/uipc_socket.c:911 #4 recvit+0x31b sys/kern/uipc_syscalls.c:1082 #5 sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 #6 syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] #6 syscall+0x50f sys/arch/amd64/amd64/trap.c:606 #7 Xsyscall+0x128 Process 43003 (syz-executor.4) thread 0xffff80002a204ab0 (108863) exclusive rwlock solock r = 0 (0xfffffd8068721608) #0 witness_lock+0x447 #1 soreceive+0xd05 pru_lock sys/sys/protosw.h:287 [inline] #1 soreceive+0xd05 sys/kern/uipc_socket.c:1062 #2 recvit+0x31b sys/kern/uipc_syscalls.c:1082 #3 sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 #4 syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] #4 syscall+0x50f sys/arch/amd64/amd64/trap.c:606 #5 Xsyscall+0x128 shared rwlock netlock r = 0 (0xffffffff82bf4600) #0 witness_lock+0x447 #1 solock_shared+0x68 sys/kern/uipc_socket2.c:370 #2 soreceive+0xd05 pru_lock sys/sys/protosw.h:287 [inline] #2 soreceive+0xd05 sys/kern/uipc_socket.c:1062 #3 recvit+0x31b sys/kern/uipc_syscalls.c:1082 #4 sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 #5 syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] #5 syscall+0x50f sys/arch/amd64/amd64/trap.c:606 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10187 6407K 6421K 166960K 11283 0 pcb 13 12K 14K 166960K 17 0 rtable 214 6K 7K 166960K 615 0 pf 27 8K 8K 166960K 39 0 ifaddr 40 14K 15K 166960K 68 0 ifgroup 46 2K 2K 166960K 70 0 sysctl 3 0K 0K 166960K 3 0 counters 60 35K 36K 166960K 72 0 ioctlops 0 0K 2K 166960K 40 0 iov 1 4K 16K 166960K 197 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1278 80K 80K 166960K 2015 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 29 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 425 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 113K 166960K 2086 0 sigio 0 0K 0K 166960K 99 0 proc 56 78K 103K 166960K 667 0 subproc 91 5K 6K 166960K 169 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1852 0 in_multi 88 6K 7K 166960K 157 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 664 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 326 78K 92K 166960K 22583 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 84 0 NDP 10 0K 2K 166960K 42 0 temp 70 5923K 6000K 166960K 9038 0 kqueue 12 18K 29K 166960K 184 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 120 135 0 132 2 0 2 2 0 8 1 rtentry 112 172 0 72 4 0 4 4 0 8 0 unpcb 144 1562 0 1549 16 12 4 6 0 8 3 syncache 312 40 0 40 5 4 1 1 0 8 1 tcpqe 32 406 0 406 6 5 1 2 0 8 1 tcpcb 808 958 0 932 30 23 7 11 0 8 4 arp 120 29 0 13 1 0 1 1 0 8 0 ipq 40 3 0 3 1 1 0 1 0 8 0 ipqe 40 77 0 77 1 1 0 1 0 8 0 inpcb 368 3547 0 3517 33 24 9 14 0 8 4 nd6 136 44 0 22 1 0 1 1 0 8 0 kcovpl 48 13 0 6 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 695 0 275 30 0 30 30 0 8 1 art_table 32 696 0 275 4 0 4 4 0 8 0 art_node 16 171 0 80 1 0 1 1 0 8 0 semapl 112 423 0 413 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 4423 0 2988 91 0 91 91 0 8 0 ffsino 272 4423 0 2988 97 0 97 97 0 8 0 nchpl 144 7303 0 5675 63 0 63 63 0 8 0 uvmvnodes 80 4601 0 0 94 0 94 94 0 8 0 vnodes 216 4601 0 0 256 0 256 256 0 8 0 namei 1024 23594 0 23594 3 2 1 2 0 8 1 percpumem 16 49 0 6 1 0 1 1 0 8 0 kstatmem 264 32 0 12 2 0 2 2 0 8 0 scxspl 216 22752 0 22752 16 15 1 8 1 8 1 plimitpl 152 207 0 186 2 1 1 2 0 8 0 sigapl 424 2370 0 2323 7 0 7 7 0 8 0 futexpl 64 16834 0 16834 1 0 1 1 0 8 1 knotepl 120 316 0 0 8 0 8 8 0 8 0 kqueuepl 216 441 0 433 12 4 8 8 0 8 7 pipepl 320 456 0 431 10 7 3 8 0 8 0 fdescpl 496 2351 0 2323 7 2 5 6 0 8 0 filepl 152 16050 0 15836 28 12 16 18 0 8 7 lockfpl 104 449 0 447 1 0 1 1 0 8 0 lockfspl 48 116 0 114 1 0 1 1 0 8 0 sessionpl 144 28 0 13 1 0 1 1 0 8 0 pgrppl 48 31 0 16 1 0 1 1 0 8 0 ucredpl 104 2919 0 2902 1 0 1 1 0 8 0 zombiepl 144 2323 0 2323 1 0 1 1 0 8 1 processpl 1072 2370 0 2323 4 0 4 4 0 8 0 procpl 680 5971 0 5907 11 3 8 8 0 8 1 sosppl 168 51 0 51 3 2 1 1 0 8 1 sockpl 488 5351 0 5305 90 76 14 23 0 8 6 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 13 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 10 0 0 1 0 1 1 0 8 0 mcl8k 8192 13 0 0 2 0 2 2 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 257 0 0 33 1 32 33 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 983 0 0 57 0 57 57 0 8 0 bufpl 288 7472 0 1151 452 0 452 452 0 8 0 anonpl 24 406932 0 396885 102 19 83 92 0 186 1 amapchunkpl 152 71919 0 71189 45 7 38 40 0 158 3 amappl16 200 10547 0 10239 34 14 20 28 0 8 0 amappl15 192 20 0 19 2 1 1 1 0 8 0 amappl14 184 169 0 157 2 1 1 2 0 8 0 amappl13 176 25 0 24 2 1 1 1 0 8 0 amappl12 168 3050 0 3020 2 0 2 2 0 8 0 amappl11 160 57 0 47 1 0 1 1 0 8 0 amappl10 152 31 0 24 2 1 1 1 0 8 0 amappl9 144 192 0 191 1 0 1 1 0 8 0 amappl8 136 301 0 221 3 0 3 3 0 8 0 amappl7 128 189 0 168 2 0 2 2 0 8 0 amappl6 120 368 0 356 1 0 1 1 0 8 0 amappl5 112 161 0 152 1 0 1 1 0 8 0 amappl4 104 510 0 484 2 1 1 2 0 8 0 amappl3 96 14070 0 13998 5 2 3 4 0 8 0 amappl2 88 2931 0 2862 3 1 2 3 0 8 0 amappl1 80 16578 0 16082 21 9 12 21 0 8 0 amappl 88 21984 0 21779 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 2352 0 2324 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2352 0 2324 1 0 1 1 0 8 0 vmmpekpl 168 24108 0 24061 3 0 3 3 0 8 0 vmmpepl 168 159651 0 157606 133 19 114 116 0 357 8 vmsppl 464 2351 0 2324 7 2 5 6 0 8 0 rwobjpl 56 51918 0 45930 90 4 86 86 0 8 0 pdppl 4096 4712 0 4648 180 100 80 90 0 8 16 pvpl 32 936636 0 921205 352 110 242 351 0 265 87 pmappl 248 2351 0 2324 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1038 0 159 26 0 26 26 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827be81d) at panic+0x17b sys/kern/subr_prf.c:198 assertwaitok() at assertwaitok+0x132 sys/kern/subr_xxx.c:163 mi_switch() at mi_switch+0x46 sys/kern/sched_bsd.c:360 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 rwsleep(fffffd8068721710,ffffffff82bf45f0,118,ffffffff827aa62f,0) at rwsleep+0xab sys/kern/kern_synch.c:300 sosleep_nsec(fffffd80687215f0,fffffd8068721710,118,ffffffff827aa62f,ffffffffffffffff) at sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 sblock(fffffd80687215f0,fffffd80687216c0,1) at sblock+0x1c4 sys/kern/uipc_socket2.c:514 soreceive(fffffd80687215f0,ffff80002a244af8,ffff80002a244ab8,0,ffff80002a244af0,ffff80002a244c7c,8aae41361e442094) at soreceive+0x5fe sys/kern/uipc_socket.c:837 recvit(ffff80002bcd5550,3,ffff80002a244c50,0,ffff80002a244c48) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002bcd5550,ffff80002a244d50,ffff80002a244da0) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff80002a244e20) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff80002a244e20) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc931e0ea560, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029d2bff0) 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(ffffffff82caf7d0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82caf7d0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 wakeup_n(fffffd8068721710,ffffffff) at wakeup_n+0x37 sys/kern/kern_synch.c:541 soreceive(fffffd80687215f0,ffff8000351c4988,ffff8000351c4948,0,0,ffff8000351c4b0c,8aae41361e442094) at soreceive+0x1857 pru_unlock sys/sys/protosw.h:294 [inline] soreceive(fffffd80687215f0,ffff8000351c4988,ffff8000351c4948,0,0,ffff8000351c4b0c,8aae41361e442094) at soreceive+0x1857 sys/kern/uipc_socket.c:1194 recvit(ffff80002a204ab0,3,ffff8000351c4ae0,0,ffff8000351c4ad8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002a204ab0,ffff8000351c4be0,ffff8000351c4c30) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff8000351c4cb0) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff8000351c4cb0) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc93667f5db0, count: 5 ddb{1}> trace x86_ipi_db(ffff800029d2bff0) 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(ffffffff82caf7d0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82caf7d0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 wakeup_n(fffffd8068721710,ffffffff) at wakeup_n+0x37 sys/kern/kern_synch.c:541 soreceive(fffffd80687215f0,ffff8000351c4988,ffff8000351c4948,0,0,ffff8000351c4b0c,8aae41361e442094) at soreceive+0x1857 pru_unlock sys/sys/protosw.h:294 [inline] soreceive(fffffd80687215f0,ffff8000351c4988,ffff8000351c4948,0,0,ffff8000351c4b0c,8aae41361e442094) at soreceive+0x1857 sys/kern/uipc_socket.c:1194 recvit(ffff80002a204ab0,3,ffff8000351c4ae0,0,ffff8000351c4ad8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002a204ab0,ffff8000351c4be0,ffff8000351c4c30) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff8000351c4cb0) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff8000351c4cb0) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc93667f5db0, count: -10