panic: assertwaitok: non-zero mutex count: 1 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 381033 54183 32767 0x10 0x4000000 0 syz-executor.3 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827bb889) 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(fffffd8072b47518,ffffffff82bf3560,118,ffffffff827aae8e,0) at rwsleep+0xab sys/kern/kern_synch.c:300 sosleep_nsec(fffffd8072b473f8,fffffd8072b47518,118,ffffffff827aae8e,ffffffffffffffff) at sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 sblock(fffffd8072b473f8,fffffd8072b474c8,1) at sblock+0x1c4 sys/kern/uipc_socket2.c:514 soreceive(fffffd8072b473f8,ffff800030b45e68,ffff800030b45e28,0,0,ffff800030b45fec,ef1dcfc519a13898) at soreceive+0x5fe sys/kern/uipc_socket.c:837 recvit(ffff80002db0d7f8,3,ffff800030b45fc0,0,ffff800030b45fb8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002db0d7f8,ffff800030b460c0,ffff800030b46110) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff800030b46190) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff800030b46190) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd4d1e5f820, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: assertwaitok: non-zero mutex count: 1 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827bb889) 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(fffffd8072b47518,ffffffff82bf3560,118,ffffffff827aae8e,0) at rwsleep+0xab sys/kern/kern_synch.c:300 sosleep_nsec(fffffd8072b473f8,fffffd8072b47518,118,ffffffff827aae8e,ffffffffffffffff) at sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 sblock(fffffd8072b473f8,fffffd8072b474c8,1) at sblock+0x1c4 sys/kern/uipc_socket2.c:514 soreceive(fffffd8072b473f8,ffff800030b45e68,ffff800030b45e28,0,0,ffff800030b45fec,ef1dcfc519a13898) at soreceive+0x5fe sys/kern/uipc_socket.c:837 recvit(ffff80002db0d7f8,3,ffff800030b45fc0,0,ffff800030b45fb8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002db0d7f8,ffff800030b460c0,ffff800030b46110) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff800030b46190) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff800030b46190) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd4d1e5f820, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800030b459d0 rbx 0xffff800029d2cba7 rdx 0 rcx 0xffff80002db0d7f8 rax 0xffff800029d2bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe0f3a86a547eb466 r11 0x413e66b8cbe14d95 r12 0xffff800029d2c9a8 r13 0 r14 0 r15 0x1 rip 0xffffffff81b102fc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800030b459c0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.3) tid=386243 pid=54183 tcnt=4 stat=sleep flags process=10 proc=4000080 runpri=24, usrpri=81, slppri=24, nice=20 wchan=0xfffffd8072b47518, wmesg=netlck, ps_single=0x0 forw=0x0, list=0xffff80002a1bed50,0xffff80002db0e000 process=0xffff8000ffffbaa8 user=0xffff800030b41000, vmspace=0xfffffd8072eb81f0 estcpu=31, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40117 161899 3445 32767 2 0x10 syz-executor.2 40117 168684 3445 32767 2 0x4000010 syz-executor.2 50928 362684 95428 32767 2 0x10 syz-executor.7 52092 174782 88672 32767 2 0x10 syz-executor.5 52092 508795 88672 32767 2 0x4000010 syz-executor.5 36897 296154 96779 32767 2 0x10 syz-executor.4 36897 69169 96779 32767 2 0x4000010 syz-executor.4 99065 393334 66476 32767 2 0x81010 syz-executor.6 99065 265282 66476 32767 3 0x4003010 suspend syz-executor.6 54183 207196 20856 32767 2 0x10 syz-executor.3 *54183 386243 20856 32767 3 0x4000090 netlck syz-executor.3 54183 381033 20856 32767 7 0x4000010 syz-executor.3 54183 27492 20856 32767 2 0x4000010 syz-executor.3 14639 259155 25369 32767 2 0x10 syz-executor.0 25369 484932 35524 0 3 0x82 wait syz-executor.0 48964 448294 54464 32767 2 0x10 syz-executor.1 54464 398786 35524 0 3 0x82 wait syz-executor.1 66476 359859 90071 32767 3 0x90 nanoslp syz-executor.6 90071 344666 35524 0 3 0x82 wait syz-executor.6 96779 226037 81550 32767 3 0x90 nanoslp syz-executor.4 81550 213038 35524 0 3 0x82 wait syz-executor.4 3445 231214 96233 32767 3 0x90 nanoslp syz-executor.2 96233 116474 35524 0 3 0x82 wait syz-executor.2 88672 331329 28241 32767 2 0x490 syz-executor.5 28241 148427 35524 0 3 0x82 wait syz-executor.5 28126 122191 0 0 3 0x14200 bored sosplice 95428 410848 97138 32767 3 0x90 nanoslp syz-executor.7 97138 183185 35524 0 3 0x82 wait syz-executor.7 20856 431423 29903 32767 3 0x90 nanoslp syz-executor.3 29903 14081 35524 0 3 0x82 wait syz-executor.3 35524 353195 60294 0 3 0x2000082 wait syz-fuzzer 35524 354435 60294 0 3 0x6000082 nanoslp syz-fuzzer 35524 81939 60294 0 3 0x6000082 wait syz-fuzzer 35524 509894 60294 0 3 0x6000082 thrsleep syz-fuzzer 35524 324675 60294 0 3 0x6000082 wait syz-fuzzer 35524 19403 60294 0 3 0x6000082 thrsleep syz-fuzzer 35524 282192 60294 0 3 0x6000082 thrsleep syz-fuzzer 35524 131010 60294 0 3 0x6000082 wait syz-fuzzer 35524 14733 60294 0 3 0x6000082 wait syz-fuzzer 35524 312190 60294 0 3 0x6000082 thrsleep syz-fuzzer 35524 91340 60294 0 3 0x6000082 kqread syz-fuzzer 35524 385083 60294 0 3 0x6000082 wait syz-fuzzer 35524 88000 60294 0 2 0x6000002 syz-fuzzer 35524 496878 60294 0 3 0x6000082 wait syz-fuzzer 35524 482536 60294 0 3 0x6000082 thrsleep syz-fuzzer 35524 23647 60294 0 3 0x6000082 wait syz-fuzzer 60294 273002 20968 0 3 0x10008a sigsusp ksh 20968 242081 62705 0 3 0x9a kqread sshd 58827 367541 1 0 3 0x100083 ttyin getty 62705 124855 1 0 3 0x88 kqread sshd 49871 273630 51830 73 3 0x1100090 kqread syslogd 51830 418372 1 0 3 0x100082 netio syslogd 99231 172371 1 0 3 0x100080 kqread resolvd 58162 339336 44758 77 3 0x100092 kqread dhcpleased 48266 240623 44758 77 3 0x100092 kqread dhcpleased 44758 348768 1 0 3 0x80 kqread dhcpleased 96252 198359 0 0 3 0x14200 bored smr 98967 288421 0 0 2 0x14200 zerothread 9506 92552 0 0 3 0x14200 aiodoned aiodoned 52797 220492 0 0 3 0x14200 syncer update 11816 158100 0 0 3 0x14200 cleaner cleaner 57225 328221 0 0 3 0x14200 reaper reaper 71749 384589 0 0 3 0x14200 pgdaemon pagedaemon 32422 393346 0 0 3 0x14200 bored viomb 82549 25403 0 0 3 0x40014200 acpi0 acpi0 66299 350824 0 0 3 0x40014200 idle1 12628 171946 0 0 3 0x14200 bored softnet3 88295 113354 0 0 3 0x14200 bored softnet2 41418 490874 0 0 3 0x14200 bored softnet1 95667 217140 0 0 3 0x14200 bored softnet0 15766 185693 0 0 3 0x14200 bored systqmp 61332 361363 0 0 3 0x14200 bored systq 16263 422902 0 0 3 0x14200 tmoslp softclockmp 61126 214281 0 0 3 0x40014200 tmoslp softclock 48692 372964 0 0 3 0x40014200 idle0 1 472855 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82d68d78) #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 (0xfffffd807e22cc40) #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 54183 (syz-executor.3) thread 0xffff80002db0dff0 (381033) exclusive rwlock solock r = 0 (0xfffffd8072b47410) #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 (0xffffffff82bf3570) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10216 6412K 6421K 166960K 11364 0 pcb 13 16K 20K 166960K 19 0 rtable 240 6K 7K 166960K 1505 0 pf 29 8K 8K 166960K 75 0 ifaddr 44 15K 16K 166960K 142 0 ifgroup 50 2K 2K 166960K 142 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 36K 166960K 108 0 ioctlops 0 0K 2K 166960K 181 0 iov 2 8K 20K 166960K 1269 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 3774 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 112 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 2512 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 24 89K 125K 166960K 10732 0 sigio 0 0K 0K 166960K 244 0 proc 57 90K 115K 166960K 1847 0 subproc 104 6K 6K 166960K 403 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 516 0 in_multi 99 7K 7K 166960K 420 0 ether_multi 1 0K 0K 166960K 21 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 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 2125 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 435 93K 106K 166960K 107840 0 UVM aobj 131 6K 6K 166960K 137 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 3770 0 NDP 11 0K 2K 166960K 96 0 temp 74 5920K 6048K 166960K 29961 0 kqueue 12 18K 31K 166960K 864 0 SYN cache 2 16K 16K 166960K 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 120 469 0 466 6 5 1 3 0 8 0 rtentry 112 384 0 271 4 0 4 4 0 8 0 unpcb 144 8344 0 8331 97 96 1 9 0 8 0 syncache 312 146 0 146 23 22 1 1 0 8 1 tcpqe 32 261 0 261 21 20 1 1 0 8 1 tcpcb 808 4153 0 4108 87 78 9 16 0 8 1 arp 120 67 0 49 1 0 1 1 0 8 0 ipq 40 48 0 47 5 4 1 1 0 8 0 ipqe 40 188 0 187 5 4 1 1 0 8 0 inpcb 368 24612 0 24563 193 182 11 23 0 8 1 nd6 136 110 0 83 1 0 1 1 0 8 0 kcovpl 48 31 0 23 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1539 0 1074 35 5 30 30 0 8 0 art_table 32 1540 0 1074 4 0 4 4 0 8 0 art_node 16 383 0 280 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 36 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 2505 0 2495 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 16790 0 15342 91 0 91 91 0 8 0 ffsino 272 16790 0 15342 97 0 97 97 0 8 0 nchpl 144 31860 0 30216 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 100334 0 100334 3 2 1 2 0 8 1 percpumem 16 67 0 23 1 0 1 1 0 8 0 kstatmem 264 68 0 46 2 0 2 2 0 8 0 scxspl 216 93009 0 93009 34 33 1 8 1 8 1 plimitpl 152 2161 0 2138 17 15 2 2 0 8 1 sigapl 424 10983 0 10929 7 0 7 7 0 8 0 futexpl 64 111816 0 111816 7 6 1 1 0 8 1 knotepl 120 886 0 0 20 2 18 18 0 8 0 kqueuepl 216 2790 0 2782 52 51 1 8 0 8 0 pipepl 320 3761 0 3733 69 66 3 9 0 8 0 fdescpl 496 10964 0 10929 7 2 5 6 0 8 0 filepl 152 86038 0 85804 142 128 14 22 0 8 2 lockfpl 104 1024 0 1022 1 0 1 1 0 8 0 lockfspl 48 352 0 350 1 0 1 1 0 8 0 sessionpl 144 46 0 30 1 0 1 1 0 8 0 pgrppl 48 124 0 108 1 0 1 1 0 8 0 ucredpl 104 11265 0 11247 1 0 1 1 0 8 0 zombiepl 144 10930 0 10929 1 0 1 1 0 8 0 processpl 1072 10983 0 10929 5 1 4 5 0 8 0 procpl 680 30407 0 30331 18 10 8 8 0 8 1 sosppl 168 188 0 183 6 5 1 1 0 8 0 sockpl 488 33981 0 33916 469 450 19 45 0 8 4 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 26 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 12 0 0 1 0 1 1 0 8 0 mcl8k 8192 33 0 0 5 2 3 3 0 8 0 mcl4k 4096 23 0 0 3 0 3 3 0 8 0 mcl2k2 2112 11 0 0 1 0 1 1 0 8 0 mcl2k 2048 351 0 0 34 4 30 34 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 1445 0 0 62 0 62 62 0 8 0 bufpl 288 20280 0 13960 452 0 452 452 0 8 0 anonpl 24 1226848 0 1215519 249 154 95 121 0 186 0 amapchunkpl 152 342348 0 341430 112 71 41 51 0 158 1 amappl16 200 27842 0 27540 173 155 18 42 0 8 0 amappl15 192 24 0 23 1 0 1 1 0 8 0 amappl14 184 232 0 217 2 1 1 2 0 8 0 amappl13 176 24 0 24 5 5 0 1 0 8 0 amappl12 168 12011 0 11968 3 0 3 3 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 50 0 39 1 0 1 1 0 8 0 amappl9 144 227 0 227 10 10 0 1 0 8 0 amappl8 136 631 0 494 5 0 5 5 0 8 0 amappl7 128 266 0 240 2 0 2 2 0 8 0 amappl6 120 800 0 779 1 0 1 1 0 8 0 amappl5 112 326 0 316 1 0 1 1 0 8 0 amappl4 104 805 0 775 2 1 1 2 0 8 0 amappl3 96 66232 0 66130 22 18 4 4 0 8 1 amappl2 88 12043 0 11958 3 1 2 3 0 8 0 amappl1 80 47890 0 47357 22 9 13 22 0 8 0 amappl 88 106773 0 106505 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 10964 0 10929 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10964 0 10929 1 0 1 1 0 8 0 vmmpekpl 168 93527 0 93459 4 0 4 4 0 8 0 vmmpepl 168 655327 0 652846 259 143 116 130 0 357 0 vmsppl 464 10963 0 10929 7 2 5 6 0 8 0 rwobjpl 56 172228 0 164752 121 11 110 112 0 8 0 pdppl 4096 21936 0 21858 457 375 82 96 0 8 4 pvpl 32 3332983 0 3315251 542 374 168 361 0 265 0 pmappl 248 10963 0 10929 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1573 0 682 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82b7dff0) 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(ffffffff82d68b70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d68b70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 wakeup_n(fffffd8072b47518,ffffffff) at wakeup_n+0x37 sys/kern/kern_synch.c:541 soreceive(fffffd8072b473f8,ffff800030b7de58,ffff800030b7de18,0,0,ffff800030b7dfdc,ef1dcfc519a13898) at soreceive+0x1857 pru_unlock sys/sys/protosw.h:294 [inline] soreceive(fffffd8072b473f8,ffff800030b7de58,ffff800030b7de18,0,0,ffff800030b7dfdc,ef1dcfc519a13898) at soreceive+0x1857 sys/kern/uipc_socket.c:1194 recvit(ffff80002db0dff0,3,ffff800030b7dfb0,0,ffff800030b7dfa8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002db0dff0,ffff800030b7e0b0,ffff800030b7e100) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff800030b7e180) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff800030b7e180) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd53039e7e0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff82b7dff0) 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(ffffffff82d68b70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d68b70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 wakeup_n(fffffd8072b47518,ffffffff) at wakeup_n+0x37 sys/kern/kern_synch.c:541 soreceive(fffffd8072b473f8,ffff800030b7de58,ffff800030b7de18,0,0,ffff800030b7dfdc,ef1dcfc519a13898) at soreceive+0x1857 pru_unlock sys/sys/protosw.h:294 [inline] soreceive(fffffd8072b473f8,ffff800030b7de58,ffff800030b7de18,0,0,ffff800030b7dfdc,ef1dcfc519a13898) at soreceive+0x1857 sys/kern/uipc_socket.c:1194 recvit(ffff80002db0dff0,3,ffff800030b7dfb0,0,ffff800030b7dfa8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002db0dff0,ffff800030b7e0b0,ffff800030b7e100) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff800030b7e180) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff800030b7e180) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd53039e7e0, count: -10 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(ffffffff827bb889) 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(fffffd8072b47518,ffffffff82bf3560,118,ffffffff827aae8e,0) at rwsleep+0xab sys/kern/kern_synch.c:300 sosleep_nsec(fffffd8072b473f8,fffffd8072b47518,118,ffffffff827aae8e,ffffffffffffffff) at sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 sblock(fffffd8072b473f8,fffffd8072b474c8,1) at sblock+0x1c4 sys/kern/uipc_socket2.c:514 soreceive(fffffd8072b473f8,ffff800030b45e68,ffff800030b45e28,0,0,ffff800030b45fec,ef1dcfc519a13898) at soreceive+0x5fe sys/kern/uipc_socket.c:837 recvit(ffff80002db0d7f8,3,ffff800030b45fc0,0,ffff800030b45fb8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002db0d7f8,ffff800030b460c0,ffff800030b46110) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff800030b46190) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff800030b46190) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd4d1e5f820, count: 2 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827bb889) 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(fffffd8072b47518,ffffffff82bf3560,118,ffffffff827aae8e,0) at rwsleep+0xab sys/kern/kern_synch.c:300 sosleep_nsec(fffffd8072b473f8,fffffd8072b47518,118,ffffffff827aae8e,ffffffffffffffff) at sosleep_nsec+0xff sys/kern/uipc_socket2.c:468 sblock(fffffd8072b473f8,fffffd8072b474c8,1) at sblock+0x1c4 sys/kern/uipc_socket2.c:514 soreceive(fffffd8072b473f8,ffff800030b45e68,ffff800030b45e28,0,0,ffff800030b45fec,ef1dcfc519a13898) at soreceive+0x5fe sys/kern/uipc_socket.c:837 recvit(ffff80002db0d7f8,3,ffff800030b45fc0,0,ffff800030b45fb8) at recvit+0x31b sys/kern/uipc_syscalls.c:1082 sys_recvmmsg(ffff80002db0d7f8,ffff800030b460c0,ffff800030b46110) at sys_recvmmsg+0x320 sys/kern/uipc_syscalls.c:973 syscall(ffff800030b46190) at syscall+0x50f mi_syscall sys/sys/syscall_mi.h:103 [inline] syscall(ffff800030b46190) at syscall+0x50f sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd4d1e5f820, count: -13