login: panic: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *453750 22058 0 0 0 1 syz-executor3835445024 502233 69262 0 0 0 0 syz-executor3835445024 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825a56b6) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 selwakeup(fffffd806d2c66d8) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline] selwakeup(fffffd806d2c66d8) at selwakeup+0x16 sys/kern/sys_generic.c:885 sorwakeup(fffffd806d2c65c0) at sorwakeup+0xc9 sys/kern/uipc_socket.c:1699 rip_input(ffff80002122daa8,ffff80002122dab4,0,2) at rip_input+0x3b0 sys/netinet/raw_ip.c:188 ip_deliver(ffff80002122daa8,ffff80002122dab4,0,2) at ip_deliver+0x322 sys/netinet/ip_input.c:657 ip_ours(ffff80002122daa8,ffff80002122dab4,fffffd806d4e8140,0) at ip_ours+0x3ba sys/netinet/ip_input.c:616 ip_input_if(ffff80002122daa8,ffff80002122dab4,4,0,ffff80000019f2a8) at ip_input_if+0x2a1 ipv4_input(ffff80000019f2a8,fffffd806ef6aa00) at ipv4_input+0x48 sys/netinet/ip_input.c:242 if_input_local(ffff80000019f2a8,fffffd806ef6aa00,2) at if_input_local+0x10e sys/net/if.c:774 ether_resolve(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070,ffff80002122dbf8) at ether_resolve+0x4ac sys/net/if_ethersubr.c:242 ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 ether_encap sys/net/if_ethersubr.c:324 [inline] ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 sys/net/if_ethersubr.c:353 end trace frame: 0xffff80002122dd70, count: 0 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: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825a56b6) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 selwakeup(fffffd806d2c66d8) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline] selwakeup(fffffd806d2c66d8) at selwakeup+0x16 sys/kern/sys_generic.c:885 sorwakeup(fffffd806d2c65c0) at sorwakeup+0xc9 sys/kern/uipc_socket.c:1699 rip_input(ffff80002122daa8,ffff80002122dab4,0,2) at rip_input+0x3b0 sys/netinet/raw_ip.c:188 ip_deliver(ffff80002122daa8,ffff80002122dab4,0,2) at ip_deliver+0x322 sys/netinet/ip_input.c:657 ip_ours(ffff80002122daa8,ffff80002122dab4,fffffd806d4e8140,0) at ip_ours+0x3ba sys/netinet/ip_input.c:616 ip_input_if(ffff80002122daa8,ffff80002122dab4,4,0,ffff80000019f2a8) at ip_input_if+0x2a1 ipv4_input(ffff80000019f2a8,fffffd806ef6aa00) at ipv4_input+0x48 sys/netinet/ip_input.c:242 if_input_local(ffff80000019f2a8,fffffd806ef6aa00,2) at if_input_local+0x10e sys/net/if.c:774 ether_resolve(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070,ffff80002122dbf8) at ether_resolve+0x4ac sys/net/if_ethersubr.c:242 ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 ether_encap sys/net/if_ethersubr.c:324 [inline] ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 sys/net/if_ethersubr.c:353 ip_output(fffffd807f00e600,0,fffffd806f6797c8,20,0,fffffd806f679750,37243901c7b4b49f) at ip_output+0x106b sys/netinet/ip_output.c:468 rip_output(fffffd807f00e600,fffffd806d2c6020,ffff80002122de10,1) at rip_output+0x2cb sys/netinet/raw_ip.c:302 rip_usrreq(fffffd806d2c6020,9,fffffd807f00e600,0,0,ffff8000211bb260) at rip_usrreq+0x49c sys/netinet/raw_ip.c:554 sosend(fffffd806d2c6020,0,ffff80002122e028,0,0,0) at sosend+0x632 sys/kern/uipc_socket.c:582 dofilewritev(ffff8000211bb260,4,ffff80002122e028,0,ffff80002122e120) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_write(ffff8000211bb260,ffff80002122e0c8,ffff80002122e120) at sys_write+0x83 sys/kern/sys_generic.c:301 syscall(ffff80002122e190) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002122e190) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7b00, count: -22 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002122d630 rbx 0xffff800020ce9bff rdx 0x3fd rcx 0 rax 0x68 r8 0x101010101010101 r9 0x8080808080808080 r10 0x27234d48c2768024 r11 0x2d72b1216573938d r12 0xffff800020ce9a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81f18858 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002122d620 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor3835445024) pid=453750 stat=onproc flags process=0 proc=0 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000211bafc0,0xffffffff82b44c30 process=0xffff8000ffffba38 user=0xffff800021229000, vmspace=0xfffffd806d573460 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *22058 453750 63751 0 7 0 syz-executor3835445024 21625 490314 35924 0 2 0 syz-executor3835445024 97785 364850 58696 0 2 0 syz-executor3835445024 69262 502233 59920 0 7 0 syz-executor3835445024 10955 132872 2233 0 2 0 syz-executor3835445024 35924 277180 48699 0 3 0x80 nanoslp syz-executor3835445024 63751 158809 48699 0 3 0x80 nanoslp syz-executor3835445024 23242 294913 39881 0 2 0x2800 syz-executor3835445024 58696 372174 48699 0 3 0x80 nanoslp syz-executor3835445024 2233 117799 48699 0 3 0x80 nanoslp syz-executor3835445024 45463 153590 61195 0 2 0 syz-executor3835445024 39881 21522 48699 0 3 0x80 nanoslp syz-executor3835445024 61195 363201 48699 0 3 0x80 nanoslp syz-executor3835445024 72949 424183 32141 0 2 0 syz-executor3835445024 59920 194596 48699 0 3 0x80 nanoslp syz-executor3835445024 32141 463262 48699 0 3 0x80 nanoslp syz-executor3835445024 48699 350346 60530 0 3 0x82 nanoslp syz-executor3835445024 60530 385360 2239 0 3 0x10008a sigsusp ksh 2239 387136 93005 0 3 0x9a kqread sshd 6168 420212 1 0 3 0x100083 ttyin getty 93005 297345 1 0 3 0x88 kqread sshd 8663 239099 14294 74 3 0x1100092 bpf pflogd 14294 72067 1 0 3 0x80 netio pflogd 36524 143475 70775 73 3 0x1100090 kqread syslogd 70775 93704 1 0 3 0x100082 netio syslogd 24591 231966 1 0 3 0x100080 kqread resolvd 1761 88665 69038 77 3 0x100092 kqread dhcpleased 15732 134339 69038 77 3 0x100092 kqread dhcpleased 69038 66835 1 0 3 0x80 kqread dhcpleased 85344 72809 0 0 3 0x14200 bored smr 52405 76030 0 0 2 0x14200 zerothread 17601 507709 0 0 3 0x14200 aiodoned aiodoned 11755 253821 0 0 3 0x14200 syncer update 11826 346874 0 0 3 0x14200 cleaner cleaner 36656 198939 0 0 3 0x14200 reaper reaper 99298 162177 0 0 3 0x14200 pgdaemon pagedaemon 3011 188835 0 0 3 0x14200 bored viomb 55539 295102 0 0 3 0x40014200 acpi0 acpi0 78165 117505 0 0 3 0x40014200 idle1 37022 302866 0 0 3 0x14200 bored softnet 3279 270171 0 0 3 0x14200 bored systqmp 8778 284840 0 0 3 0x14200 bored systq 71754 34053 0 0 3 0x40014200 bored softclock 7613 40026 0 0 3 0x40014200 idle0 1 338629 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82a8ed88) #0 witness_lock+0x44d #1 sleep_setup+0xf6 sys/kern/kern_synch.c:379 #2 rw_enter+0x329 _atomic_cas_ulong machine/atomic.h:72 [inline] #2 rw_enter+0x329 sys/kern/kern_rwlock.c:284 #3 solock+0x86 sys/kern/uipc_socket2.c:295 #4 sosend+0x215 sys/kern/uipc_socket.c:515 #5 dofilewritev+0x19c sys/kern/sys_generic.c:381 #6 sys_write+0x83 sys/kern/sys_generic.c:301 #7 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #7 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #8 Xsyscall+0x128 CPU 1: exclusive mutex &table->inpt_mtx r = 0 (0xffffffff829c70c8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 rip_input+0x135 #4 ip_deliver+0x322 sys/netinet/ip_input.c:657 #5 ip_ours+0x3ba sys/netinet/ip_input.c:616 #6 ip_input_if+0x2a1 #7 ipv4_input+0x48 sys/netinet/ip_input.c:242 #8 if_input_local+0x10e sys/net/if.c:774 #9 ether_resolve+0x4ac sys/net/if_ethersubr.c:242 #10 ether_output+0x47 ether_encap sys/net/if_ethersubr.c:324 [inline] #10 ether_output+0x47 sys/net/if_ethersubr.c:353 #11 ip_output+0x106b sys/netinet/ip_output.c:468 #12 rip_output+0x2cb sys/netinet/raw_ip.c:302 #13 rip_usrreq+0x49c sys/netinet/raw_ip.c:554 #14 sosend+0x632 sys/kern/uipc_socket.c:582 #15 dofilewritev+0x19c sys/kern/sys_generic.c:381 #16 sys_write+0x83 sys/kern/sys_generic.c:301 #17 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #17 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #18 Xsyscall+0x128 Process 22058 (syz-executor3835445024) thread 0xffff8000211bb260 (453750) exclusive rwlock netlock r = 0 (0xffffffff828f7720) #0 witness_lock+0x44d #1 solock+0x86 sys/kern/uipc_socket2.c:295 #2 sosend+0x517 sys/kern/uipc_socket.c:570 #3 dofilewritev+0x19c sys/kern/sys_generic.c:381 #4 sys_write+0x83 sys/kern/sys_generic.c:301 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive mutex &table->inpt_mtx r = 0 (0xffffffff829c70c8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 rip_input+0x135 #4 ip_deliver+0x322 sys/netinet/ip_input.c:657 #5 ip_ours+0x3ba sys/netinet/ip_input.c:616 #6 ip_input_if+0x2a1 #7 ipv4_input+0x48 sys/netinet/ip_input.c:242 #8 if_input_local+0x10e sys/net/if.c:774 #9 ether_resolve+0x4ac sys/net/if_ethersubr.c:242 #10 ether_output+0x47 ether_encap sys/net/if_ethersubr.c:324 [inline] #10 ether_output+0x47 sys/net/if_ethersubr.c:353 #11 ip_output+0x106b sys/netinet/ip_output.c:468 #12 rip_output+0x2cb sys/netinet/raw_ip.c:302 #13 rip_usrreq+0x49c sys/netinet/raw_ip.c:554 #14 sosend+0x632 sys/kern/uipc_socket.c:582 #15 dofilewritev+0x19c sys/kern/sys_generic.c:381 #16 sys_write+0x83 sys/kern/sys_generic.c:301 #17 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #17 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #18 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10149 6454K 6455K 78643K 11239 0 pcb 13 8K 8K 78643K 19 0 rtable 62 2K 2K 78643K 112 0 ifaddr 29 8K 8K 78643K 32 0 counters 40 33K 33K 78643K 40 0 ioctlops 0 0K 4K 78643K 1479 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1167 73K 73K 78643K 1180 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 67 87K 87K 78643K 282 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 432 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 97 5K 6K 78643K 2160 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 4 0K 0K 78643K 4 0 temp 24 4694K 4757K 78643K 3076 0 kqueue 11 16K 18K 78643K 24 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 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 136 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpcb 736 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 312 42 0 29 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 10 0 2 1 0 1 1 0 8 0 pfstkey 112 10 0 2 1 0 1 1 0 8 0 pfstate 320 10 0 2 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1425 0 39 87 0 87 87 0 8 0 ffsino 272 1425 0 39 93 0 93 93 0 8 0 nchpl 144 1600 0 49 58 0 58 58 0 8 0 uvmvnodes 80 1435 0 0 30 0 30 30 0 8 0 vnodes 224 1435 0 0 85 0 85 85 0 8 0 namei 1024 4433 0 4430 2 1 1 1 0 8 0 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 216 4058 0 4058 10 9 1 8 0 8 1 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 424 336 0 291 5 0 5 5 0 8 0 knotepl 120 49 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 336 86 0 83 2 1 1 1 0 8 0 fdescpl 496 322 0 291 4 0 4 4 0 8 0 filepl 152 1164 0 1091 3 0 3 3 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 70 0 57 1 0 1 1 0 8 0 zombiepl 144 291 0 291 2 1 1 1 0 8 1 processpl 1064 336 0 291 3 0 3 3 0 8 0 procpl 672 336 0 291 4 0 4 4 0 8 0 sockpl 480 94 0 63 5 1 4 4 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 90 0 0 10 0 10 10 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 135 0 0 9 1 8 9 0 8 0 bufpl 288 2020 0 95 138 0 138 138 0 8 0 anonpl 24 41320 0 38961 18 3 15 17 0 186 0 amapchunkpl 152 3995 0 3836 8 1 7 7 0 158 0 amappl16 200 37 0 33 2 1 1 1 0 8 0 amappl15 192 67 0 64 1 0 1 1 0 8 0 amappl14 184 1 0 1 1 1 0 1 0 8 0 amappl13 176 34 0 33 2 1 1 1 0 8 0 amappl12 168 6 0 6 2 1 1 1 0 8 1 amappl11 160 48 0 33 1 0 1 1 0 8 0 amappl10 152 3 0 1 1 0 1 1 0 8 0 amappl9 144 400 0 398 1 0 1 1 0 8 0 amappl8 136 368 0 364 1 0 1 1 0 8 0 amappl7 128 65 0 62 1 0 1 1 0 8 0 amappl6 120 114 0 101 1 0 1 1 0 8 0 amappl5 112 291 0 270 1 0 1 1 0 8 0 amappl4 104 640 0 619 1 0 1 1 0 8 0 amappl3 96 123 0 113 1 0 1 1 0 8 0 amappl2 88 370 0 332 1 0 1 1 0 8 0 amappl1 80 8870 0 8458 9 0 9 9 0 8 0 amappl 88 1880 0 1800 2 0 2 2 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 322 0 291 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 322 0 291 1 0 1 1 0 8 0 vmmpekpl 168 6288 0 6271 1 0 1 1 0 8 0 vmmpepl 168 26891 0 25824 47 0 47 47 0 357 0 vmsppl 368 321 0 291 3 0 3 3 0 8 0 rwobjpl 56 9660 0 7672 29 0 29 29 0 8 0 pdppl 4096 651 0 582 87 18 69 69 0 8 0 pvpl 32 134772 0 130350 38 1 37 37 0 265 0 pmappl 248 321 0 291 2 0 2 2 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 450 0 24 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8294dff0) 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(ffffffff82b46e28) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0x129 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82b46e28,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416 sleep_finish(ffff80002121b8f8,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437 rw_enter(fffffd806f1ebd50,1) at rw_enter+0x35a sys/kern/kern_rwlock.c:286 rrw_enter(fffffd806f1ebd50,1) at rrw_enter+0x8b sys/kern/kern_rwlock.c:461 VOP_LOCK(fffffd806f2d0650,2001) at VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 vn_lock(fffffd806f2d0650,2001) at vn_lock+0x84 sys/kern/vfs_vnops.c:579 vfs_lookup(ffff80002121bdc8) at vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 namei(ffff80002121bdc8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff80002121bdc8,60f,0) at vn_open+0x188 sys/kern/vfs_vnops.c:113 end trace frame: 0xffff80002121bf40, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8294dff0) 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(ffffffff82b46e28) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0x129 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82b46e28,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416 sleep_finish(ffff80002121b8f8,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437 rw_enter(fffffd806f1ebd50,1) at rw_enter+0x35a sys/kern/kern_rwlock.c:286 rrw_enter(fffffd806f1ebd50,1) at rrw_enter+0x8b sys/kern/kern_rwlock.c:461 VOP_LOCK(fffffd806f2d0650,2001) at VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 vn_lock(fffffd806f2d0650,2001) at vn_lock+0x84 sys/kern/vfs_vnops.c:579 vfs_lookup(ffff80002121bdc8) at vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 namei(ffff80002121bdc8) at namei+0x36a sys/kern/vfs_lookup.c:245 vn_open(ffff80002121bdc8,60f,0) at vn_open+0x188 sys/kern/vfs_vnops.c:113 doopenat(ffff8000211ba7e0,ffffff9c,20000040,60e,0,ffff80002121bfb0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1129 syscall(ffff80002121c020) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002121c020) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7b00, count: -17 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:440 panic(ffffffff825a56b6) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 selwakeup(fffffd806d2c66d8) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline] selwakeup(fffffd806d2c66d8) at selwakeup+0x16 sys/kern/sys_generic.c:885 sorwakeup(fffffd806d2c65c0) at sorwakeup+0xc9 sys/kern/uipc_socket.c:1699 rip_input(ffff80002122daa8,ffff80002122dab4,0,2) at rip_input+0x3b0 sys/netinet/raw_ip.c:188 ip_deliver(ffff80002122daa8,ffff80002122dab4,0,2) at ip_deliver+0x322 sys/netinet/ip_input.c:657 ip_ours(ffff80002122daa8,ffff80002122dab4,fffffd806d4e8140,0) at ip_ours+0x3ba sys/netinet/ip_input.c:616 ip_input_if(ffff80002122daa8,ffff80002122dab4,4,0,ffff80000019f2a8) at ip_input_if+0x2a1 ipv4_input(ffff80000019f2a8,fffffd806ef6aa00) at ipv4_input+0x48 sys/netinet/ip_input.c:242 if_input_local(ffff80000019f2a8,fffffd806ef6aa00,2) at if_input_local+0x10e sys/net/if.c:774 ether_resolve(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070,ffff80002122dbf8) at ether_resolve+0x4ac sys/net/if_ethersubr.c:242 ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 ether_encap sys/net/if_ethersubr.c:324 [inline] ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 sys/net/if_ethersubr.c:353 end trace frame: 0xffff80002122dd70, count: 0 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825a56b6) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 selwakeup(fffffd806d2c66d8) at selwakeup+0x16 klist_empty sys/sys/event.h:361 [inline] selwakeup(fffffd806d2c66d8) at selwakeup+0x16 sys/kern/sys_generic.c:885 sorwakeup(fffffd806d2c65c0) at sorwakeup+0xc9 sys/kern/uipc_socket.c:1699 rip_input(ffff80002122daa8,ffff80002122dab4,0,2) at rip_input+0x3b0 sys/netinet/raw_ip.c:188 ip_deliver(ffff80002122daa8,ffff80002122dab4,0,2) at ip_deliver+0x322 sys/netinet/ip_input.c:657 ip_ours(ffff80002122daa8,ffff80002122dab4,fffffd806d4e8140,0) at ip_ours+0x3ba sys/netinet/ip_input.c:616 ip_input_if(ffff80002122daa8,ffff80002122dab4,4,0,ffff80000019f2a8) at ip_input_if+0x2a1 ipv4_input(ffff80000019f2a8,fffffd806ef6aa00) at ipv4_input+0x48 sys/netinet/ip_input.c:242 if_input_local(ffff80000019f2a8,fffffd806ef6aa00,2) at if_input_local+0x10e sys/net/if.c:774 ether_resolve(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070,ffff80002122dbf8) at ether_resolve+0x4ac sys/net/if_ethersubr.c:242 ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 ether_encap sys/net/if_ethersubr.c:324 [inline] ether_output(ffff80000019f2a8,fffffd807f00e600,fffffd806f6797d8,fffffd806f48f070) at ether_output+0x47 sys/net/if_ethersubr.c:353 ip_output(fffffd807f00e600,0,fffffd806f6797c8,20,0,fffffd806f679750,37243901c7b4b49f) at ip_output+0x106b sys/netinet/ip_output.c:468 rip_output(fffffd807f00e600,fffffd806d2c6020,ffff80002122de10,1) at rip_output+0x2cb sys/netinet/raw_ip.c:302 rip_usrreq(fffffd806d2c6020,9,fffffd807f00e600,0,0,ffff8000211bb260) at rip_usrreq+0x49c sys/netinet/raw_ip.c:554 sosend(fffffd806d2c6020,0,ffff80002122e028,0,0,0) at sosend+0x632 sys/kern/uipc_socket.c:582 dofilewritev(ffff8000211bb260,4,ffff80002122e028,0,ffff80002122e120) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_write(ffff8000211bb260,ffff80002122e0c8,ffff80002122e120) at sys_write+0x83 sys/kern/sys_generic.c:301 syscall(ffff80002122e190) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002122e190) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7b00, count: -22 ddb{1}>