panic: kernel diagnostic assertion "m->m_pkthdr.pf.prio <= IFQ_MAXPRIO" failed: file "/syzkaller/managers/multicore/kernel/sys/net/ifq.c", line 858 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *496459 43534 0 0 0x4000000 0 syz-executor.5 285252 79874 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825739a5) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e91ae,ffffffff825cdabe,35a,ffffffff82591901) at __assert+0x25 sys/kern/subr_prf.c:161 priq_enq(ffff80000019f558,fffffd807e01aa00) at priq_enq+0x2ae sys/net/ifq.c:858 ifq_enqueue(ffff80000019f558,fffffd807e01aa00) at ifq_enqueue+0x48 sys/net/ifq.c:365 if_enqueue_ifq(ffff80000019f2a8,fffffd807e01aa00) at if_enqueue_ifq+0x7e sys/net/if.c:725 ether_output(ffff80000019f2a8,fffffd807e01aa00,ffff8000006c6650,fffffd806f6653f0) at ether_output+0xb7 sys/net/if_ethersubr.c:358 ip_output(fffffd807e01aa00,0,fffffd806f67f070,800,0,fffffd806f67f000,426cfd956ffd8cc9) at ip_output+0x106b sys/netinet/ip_output.c:468 tcp_output(ffff800000bc4e60) at tcp_output+0x247d sys/netinet/tcp_output.c:1046 tcp_usrreq(fffffd807ddbf230,4,0,fffffd805bca2300,0,ffff800022c4c000) at tcp_usrreq+0x43f sys_connect(ffff800022c4c000,ffff80002e3a91a8,ffff80002e3a9200) at sys_connect+0x1da sys/kern/uipc_syscalls.c:378 syscall(ffff80002e3a9270) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3a9270) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd9e796f5c0, 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: kernel diagnostic assertion "m->m_pkthdr.pf.prio <= IFQ_MAXPRIO" failed: file "/syzkaller/managers/multicore/kernel/sys/net/ifq.c", line 858 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825739a5) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e91ae,ffffffff825cdabe,35a,ffffffff82591901) at __assert+0x25 sys/kern/subr_prf.c:161 priq_enq(ffff80000019f558,fffffd807e01aa00) at priq_enq+0x2ae sys/net/ifq.c:858 ifq_enqueue(ffff80000019f558,fffffd807e01aa00) at ifq_enqueue+0x48 sys/net/ifq.c:365 if_enqueue_ifq(ffff80000019f2a8,fffffd807e01aa00) at if_enqueue_ifq+0x7e sys/net/if.c:725 ether_output(ffff80000019f2a8,fffffd807e01aa00,ffff8000006c6650,fffffd806f6653f0) at ether_output+0xb7 sys/net/if_ethersubr.c:358 ip_output(fffffd807e01aa00,0,fffffd806f67f070,800,0,fffffd806f67f000,426cfd956ffd8cc9) at ip_output+0x106b sys/netinet/ip_output.c:468 tcp_output(ffff800000bc4e60) at tcp_output+0x247d sys/netinet/tcp_output.c:1046 tcp_usrreq(fffffd807ddbf230,4,0,fffffd805bca2300,0,ffff800022c4c000) at tcp_usrreq+0x43f sys_connect(ffff800022c4c000,ffff80002e3a91a8,ffff80002e3a9200) at sys_connect+0x1da sys/kern/uipc_syscalls.c:378 syscall(ffff80002e3a9270) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3a9270) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd9e796f5c0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e3a8b70 rbx 0xffffffff82920bff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff800022c4c000 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb5711e47faa7b09 r11 0x68ea71df97b9bad8 r12 0xffffffff82920a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8147cfe8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e3a8b60 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.5) pid=496459 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800022c4d500,0xffff800022c4c7f0 process=0xffff80002e4d1d38 user=0xffff80002e3a4000, vmspace=0xfffffd806a8bc5d0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 3417 255808 65705 0 2 0 syz-executor.6 43534 434262 98806 0 2 0 syz-executor.5 *43534 496459 98806 0 7 0x4000000 syz-executor.5 22678 243873 42645 0 2 0 syz-executor.7 22678 410159 42645 0 3 0x4000080 fsleep syz-executor.7 33420 266517 24839 60928 2 0x10 syz-executor.1 33420 150314 24839 60928 3 0x4000090 fsleep syz-executor.1 33420 169731 24839 60928 3 0x4000090 fsleep syz-executor.1 10478 496615 48936 0 2 0 syz-executor.4 10478 282601 48936 0 2 0x4000000 syz-executor.4 22741 43343 19374 0 2 0 syz-executor.0 22741 371732 19374 0 3 0x4000080 fsleep syz-executor.0 22741 295155 19374 0 3 0x4000080 fsleep syz-executor.0 12181 514219 74674 0 3 0x82 nanoslp syz-executor.3 65705 157139 74674 0 3 0x82 nanoslp syz-executor.6 89951 168064 74674 0 3 0x82 piperd syz-executor.2 42645 101623 74674 0 3 0x82 nanoslp syz-executor.7 19374 438361 74674 0 3 0x82 nanoslp syz-executor.0 98806 9812 74674 0 3 0x82 nanoslp syz-executor.5 2946 365285 0 0 3 0x14200 bored sosplice 2550 338695 0 0 3 0x14280 nfsidl nfsio 4522 115201 0 0 3 0x14280 nfsidl nfsio 61330 4573 0 0 3 0x14280 nfsidl nfsio 57657 252220 0 0 3 0x14280 nfsidl nfsio 48023 200228 0 0 3 0x14280 nfsidl nfsio 65977 300141 0 0 3 0x14280 nfsidl nfsio 39416 244399 0 0 3 0x14280 nfsidl nfsio 8279 121428 0 0 3 0x14280 nfsidl nfsio 6316 450010 0 0 3 0x14280 nfsidl nfsio 94041 37948 0 0 3 0x14280 nfsidl nfsio 49757 444660 0 0 3 0x14280 nfsidl nfsio 87904 104484 0 0 3 0x14280 nfsidl nfsio 74990 54844 0 0 3 0x14280 nfsidl nfsio 15882 381602 0 0 3 0x14280 nfsidl nfsio 29989 306889 0 0 3 0x14280 nfsidl nfsio 40063 307019 0 0 3 0x14280 nfsidl nfsio 73052 337970 0 0 3 0x14280 nfsidl nfsio 15399 510621 0 0 3 0x14280 nfsidl nfsio 62118 84634 0 0 3 0x14280 nfsidl nfsio 50837 392126 0 0 3 0x14280 nfsidl nfsio 48936 490083 74674 0 3 0x82 nanoslp syz-executor.4 24839 513837 74674 0 3 0x82 nanoslp syz-executor.1 74674 489659 2858 0 3 0x82 thrsleep syz-fuzzer 74674 67139 2858 0 3 0x4000082 nanoslp syz-fuzzer 74674 106475 2858 0 3 0x4000082 thrsleep syz-fuzzer 74674 401511 2858 0 3 0x4000082 thrsleep syz-fuzzer 74674 53572 2858 0 2 0x4000002 syz-fuzzer 74674 353238 2858 0 3 0x4000082 thrsleep syz-fuzzer 74674 324955 2858 0 3 0x4000082 nanoslp syz-fuzzer 74674 386540 2858 0 3 0x4000082 thrsleep syz-fuzzer 74674 125216 2858 0 3 0x4000082 thrsleep syz-fuzzer 2858 291989 97182 0 3 0x10008a sigsusp ksh 97182 290844 47950 0 3 0x9a kqread sshd 93499 263598 1 0 3 0x100083 ttyin getty 47950 477013 1 0 3 0x88 kqread sshd 8369 410069 51949 74 3 0x100092 bpf pflogd 51949 156905 1 0 3 0x80 netio pflogd 75532 231170 3107 73 3 0x100090 kqread syslogd 3107 498558 1 0 3 0x100082 netio syslogd 81355 461185 1 0 3 0x100080 kqread resolvd 47333 482913 33011 77 3 0x100092 kqread dhcpleased 22391 497171 33011 77 3 0x100092 kqread dhcpleased 33011 258690 1 0 3 0x80 kqread dhcpleased 47751 29362 0 0 3 0x14200 bored smr 81617 395261 0 0 2 0x14200 zerothread 98100 415980 0 0 3 0x14200 aiodoned aiodoned 31754 304385 0 0 3 0x14200 syncer update 4373 147081 0 0 3 0x14200 cleaner cleaner 79874 285252 0 0 7 0x14200 reaper 93314 207052 0 0 3 0x14200 pgdaemon pagedaemon 69894 16008 0 0 3 0x14200 bored viomb 66470 142215 0 0 3 0x40014200 acpi0 acpi0 10195 368517 0 0 3 0x40014200 idle1 67343 289940 0 0 3 0x14200 bored softnet 35284 11096 0 0 3 0x14200 bored systqmp 9000 20254 0 0 3 0x14200 bored systq 71089 316193 0 0 3 0x40014200 bored softclock 7383 73906 0 0 3 0x40014200 idle0 1 464907 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &ifq->ifq_mtx r = 0 (0xffff80000019f580) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 ifq_enqueue+0x34 sys/net/ifq.c:365 #4 if_enqueue_ifq+0x7e sys/net/if.c:725 #5 ether_output+0xb7 sys/net/if_ethersubr.c:358 #6 ip_output+0x106b sys/netinet/ip_output.c:468 #7 tcp_output+0x247d sys/netinet/tcp_output.c:1046 #8 tcp_usrreq+0x43f #9 sys_connect+0x1da sys/kern/uipc_syscalls.c:378 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 Process 43534 (syz-executor.5) thread 0xffff800022c4c000 (496459) exclusive rwlock netlock r = 0 (0xffffffff828e4ab0) #0 witness_lock+0x44d #1 solock+0x86 sys/kern/uipc_socket2.c:295 #2 sys_connect+0x18d sys/kern/uipc_syscalls.c:368 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 exclusive mutex &ifq->ifq_mtx r = 0 (0xffff80000019f580) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 ifq_enqueue+0x34 sys/net/ifq.c:365 #4 if_enqueue_ifq+0x7e sys/net/if.c:725 #5 ether_output+0xb7 sys/net/if_ethersubr.c:358 #6 ip_output+0x106b sys/netinet/ip_output.c:468 #7 tcp_output+0x247d sys/netinet/tcp_output.c:1046 #8 tcp_usrreq+0x43f #9 sys_connect+0x1da sys/kern/uipc_syscalls.c:378 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 Process 79874 (reaper) thread 0xffff8000210f9a40 (285252) exclusive kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10220 6495K 6903K 78643K 20808 0 pcb 13 18K 20K 78643K 1151 0 rtable 238 16K 19K 78643K 6014 0 ifaddr 111 23K 24K 78643K 2257 0 sysctl 2 0K 0K 78643K 2 0 counters 58 35K 36K 78643K 128 0 ioctlops 0 0K 8K 78643K 14877 0 iov 0 0K 16K 78643K 718 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1384 86K 87K 78643K 7240 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 52 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 20 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 93K 78643K 11930 0 sigio 0 0K 0K 78643K 31 0 proc 70 87K 111K 78643K 1370 0 subproc 104 6K 6K 78643K 338 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1317 0 in_multi 86 5K 6K 78643K 4069 0 ether_multi 1 0K 0K 78643K 463 0 mrt 2 0K 0K 78643K 48 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 3301 0 pfkey data 0 0K 0K 78643K 3 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 7 26K 26K 78643K 7 0 UVM amap 495 536K 536K 78643K 153261 0 UVM aobj 131 7K 7K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 833 0 NDP 14 0K 2K 78643K 640 0 temp 174 4769K 4835K 78643K 57654 0 kqueue 12 18K 26K 78643K 420 0 SYN cache 2 16K 16K 78643K 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 120 450 0 447 6 5 1 3 0 8 0 rtentry 112 2522 0 2436 4 1 3 4 0 8 0 unpcb 136 3771 0 3751 30 29 1 6 0 8 0 syncache 296 23 0 23 8 8 0 1 0 8 0 tcpqe 32 8 0 8 4 4 0 1 0 8 0 tcpcb 736 5845 0 5839 125 117 8 13 0 8 7 arp 120 56 0 41 1 0 1 1 0 8 0 inpcb 304 14744 0 14732 144 135 9 12 0 8 8 rttmr 72 12 0 12 6 5 1 1 0 8 1 nd6 48 632 0 610 1 0 1 1 0 8 0 pkpcb 40 7 0 7 2 2 0 1 0 8 0 kcovpl 48 26 0 18 1 0 1 1 0 8 0 ppxss 1248 9 0 8 1 0 1 1 0 8 0 pfstscr 40 15 0 15 4 3 1 1 0 8 1 pffrag 232 61 0 60 4 3 1 1 0 482 0 pffrnode 88 60 0 59 4 3 1 1 0 8 0 pffrent 40 140 0 139 5 4 1 1 0 8 0 pfosfp 40 1432 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1432 0 714 21 0 21 21 0 8 0 pfrke_plain 168 4 0 2 2 1 1 1 0 8 0 pfrktable 1344 195 0 177 7 4 3 3 0 8 1 pftag 88 27 0 18 3 2 1 1 0 8 0 pfstitem 24 24 0 22 1 0 1 1 0 8 0 pfstkey 112 54 0 52 1 0 1 1 0 8 0 pfstate 320 37 0 35 2 1 1 2 0 8 0 pfrule 1360 7674 0 5561 178 1 177 177 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 14643 0 14203 39 11 28 29 0 8 0 art_table 32 14644 0 14203 4 0 4 4 0 8 0 art_node 16 2508 0 2431 1 0 1 1 0 8 0 semupl 112 5 0 5 2 2 0 1 0 8 0 semapl 112 14 0 4 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 18626 0 17172 92 0 92 92 0 8 0 ffsino 272 18626 0 17172 98 0 98 98 0 8 0 nchpl 144 33698 0 32073 63 0 63 63 0 8 0 rtmask 32 8 0 6 2 1 1 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 119867 0 119867 9 8 1 2 0 8 1 percpumem 16 76 0 35 1 0 1 1 0 8 0 vcpupl 2048 103 0 0 13 0 13 13 0 8 0 vmpool 560 122 0 19 10 2 8 8 0 8 0 pfiaddrpl 120 73 0 57 1 0 1 1 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 96143 0 96143 21 20 1 6 0 8 1 plimitpl 152 703 0 688 1 0 1 1 0 8 0 sigapl 424 12217 0 12153 8 0 8 8 0 8 0 futexpl 64 124338 0 124333 6 5 1 1 0 8 0 knotepl 120 265 0 0 7 2 5 6 0 8 0 kqueuepl 216 3479 0 3471 50 42 8 8 0 8 7 pipepl 336 15113 0 15084 142 136 6 17 0 8 3 fdescpl 496 12182 0 12153 5 1 4 5 0 8 0 filepl 152 113735 0 113476 157 139 18 24 0 8 8 lockfpl 104 1805 0 1803 3 2 1 2 0 8 0 lockfspl 48 516 0 514 1 0 1 1 0 8 0 sessionpl 144 42 0 25 1 0 1 1 0 8 0 pgrppl 48 46 0 29 1 0 1 1 0 8 0 ucredpl 96 18775 0 18761 1 0 1 1 0 8 0 zombiepl 144 12153 0 12152 5 4 1 1 0 8 0 processpl 1064 12217 0 12152 5 0 5 5 0 8 0 procpl 672 34895 0 34815 20 12 8 9 0 8 0 srpgc 96 18 0 18 2 2 0 1 0 8 0 sosppl 168 58 0 58 9 8 1 1 0 8 1 sockpl 480 18986 0 18951 258 246 12 21 0 8 7 mcl64k 65536 26 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 1 2 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 5 2 3 3 0 8 0 mcl4k 4096 41 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 208 0 0 18 0 18 18 0 8 0 mtagpl 96 593 0 0 11 0 11 11 0 8 0 mbufpl 256 1800 0 0 101 1 100 100 0 8 0 bufpl 288 19783 0 13448 453 0 453 453 0 8 0 anonpl 24 3360497 0 3337849 293 139 154 168 0 186 0 amapchunkpl 152 368582 0 367668 92 55 37 48 0 158 0 amappl16 200 29774 0 28946 122 73 49 54 0 8 0 amappl15 192 2939 0 2934 1 0 1 1 0 8 0 amappl14 184 3094 0 3086 1 0 1 1 0 8 0 amappl13 176 783 0 778 1 0 1 1 0 8 0 amappl12 168 925 0 923 2 1 1 1 0 8 0 amappl11 160 1342 0 1324 1 0 1 1 0 8 0 amappl10 152 2564 0 2555 1 0 1 1 0 8 0 amappl9 144 2196 0 2191 1 0 1 1 0 8 0 amappl8 136 1434 0 1303 5 0 5 5 0 8 0 amappl7 128 434 0 420 1 0 1 1 0 8 0 amappl6 120 1994 0 1968 2 1 1 2 0 8 0 amappl5 112 13083 0 13062 1 0 1 1 0 8 0 amappl4 104 4411 0 4374 4 2 2 2 0 8 0 amappl3 96 1694 0 1683 1 0 1 1 0 8 0 amappl2 88 2252 0 2193 3 1 2 3 0 8 0 amappl1 80 222140 0 221549 25 11 14 19 0 8 0 amappl 88 152262 0 151953 9 1 8 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 12304 0 12172 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 12304 0 12172 1 0 1 1 0 8 0 vmmpekpl 168 142317 0 142239 6 1 5 6 0 8 0 vmmpepl 168 1096183 0 1092910 304 145 159 166 0 357 8 vmsppl 368 12303 0 12172 14 1 13 13 0 8 0 rwobjpl 56 269591 0 261590 122 7 115 116 0 8 0 pdppl 4096 24615 0 24447 564 391 173 173 0 8 5 pvpl 32 5883059 0 5859256 478 270 208 263 0 265 0 pmappl 248 12303 0 12172 10 1 9 9 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1867 0 671 35 0 35 35 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825739a5) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825e91ae,ffffffff825cdabe,35a,ffffffff82591901) at __assert+0x25 sys/kern/subr_prf.c:161 priq_enq(ffff80000019f558,fffffd807e01aa00) at priq_enq+0x2ae sys/net/ifq.c:858 ifq_enqueue(ffff80000019f558,fffffd807e01aa00) at ifq_enqueue+0x48 sys/net/ifq.c:365 if_enqueue_ifq(ffff80000019f2a8,fffffd807e01aa00) at if_enqueue_ifq+0x7e sys/net/if.c:725 ether_output(ffff80000019f2a8,fffffd807e01aa00,ffff8000006c6650,fffffd806f6653f0) at ether_output+0xb7 sys/net/if_ethersubr.c:358 ip_output(fffffd807e01aa00,0,fffffd806f67f070,800,0,fffffd806f67f000,426cfd956ffd8cc9) at ip_output+0x106b sys/netinet/ip_output.c:468 tcp_output(ffff800000bc4e60) at tcp_output+0x247d sys/netinet/tcp_output.c:1046 tcp_usrreq(fffffd807ddbf230,4,0,fffffd805bca2300,0,ffff800022c4c000) at tcp_usrreq+0x43f sys_connect(ffff800022c4c000,ffff80002e3a91a8,ffff80002e3a9200) at sys_connect+0x1da sys/kern/uipc_syscalls.c:378 syscall(ffff80002e3a9270) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3a9270) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd9e796f5c0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020ce8ff0) 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 __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x31 kd_curproc sys/dev/kcov.c:578 [inline] __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x31 sys/dev/kcov.c:225 witness_checkorder(ffffffff829914e0,9,0) at witness_checkorder+0x65 sys/kern/subr_witness.c:765 mtx_enter(ffffffff829914d0) at mtx_enter+0x3a sys/kern/kern_lock.c:265 msleep(ffffffff82b4b778,ffffffff829914d0,4,ffffffff826246f7,0) at msleep+0x214 reaper(ffff8000210f9a40) at reaper+0xcb sys/kern/kern_exit.c:433 end trace frame: 0x0, count: 7 ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) 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 __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x31 kd_curproc sys/dev/kcov.c:578 [inline] __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x31 sys/dev/kcov.c:225 witness_checkorder(ffffffff829914e0,9,0) at witness_checkorder+0x65 sys/kern/subr_witness.c:765 mtx_enter(ffffffff829914d0) at mtx_enter+0x3a sys/kern/kern_lock.c:265 msleep(ffffffff82b4b778,ffffffff829914d0,4,ffffffff826246f7,0) at msleep+0x214 reaper(ffff8000210f9a40) at reaper+0xcb sys/kern/kern_exit.c:433 end trace frame: 0x0, count: -8