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 *104581 93100 32767 0x10 0x4000000 1 syz-executor.5 242760 56903 32767 0x10 0x4000000 0 syz-executor.7 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825c306b) at panic+0x177 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82b8eb38,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 rt_clone(ffff800025fd56a8,fffffd8068be5210,0) at rt_clone+0x5c sys/net/route.c:257 rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc rt_match sys/net/route.c:235 [inline] rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc sys/net/route.c:350 in_pcbrtentry(fffffd8068be5188) at in_pcbrtentry+0x1cf ip6_ctloutput(0,fffffd806f687008,29,2c,fffffd806f44ad00) at ip6_ctloutput+0x1079 sys/netinet6/ip6_output.c:1511 sys_getsockopt(ffff800022d7b268,ffff800025fd5898,ffff800025fd58e0) at sys_getsockopt+0x15e sys/kern/uipc_syscalls.c:1275 syscall(ffff800025fd5960) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025fd5960) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ceb0ea25b0, count: 4 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:437 panic(ffffffff825c306b) at panic+0x177 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82b8eb38,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 rt_clone(ffff800025fd56a8,fffffd8068be5210,0) at rt_clone+0x5c sys/net/route.c:257 rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc rt_match sys/net/route.c:235 [inline] rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc sys/net/route.c:350 in_pcbrtentry(fffffd8068be5188) at in_pcbrtentry+0x1cf ip6_ctloutput(0,fffffd806f687008,29,2c,fffffd806f44ad00) at ip6_ctloutput+0x1079 sys/netinet6/ip6_output.c:1511 sys_getsockopt(ffff800022d7b268,ffff800025fd5898,ffff800025fd58e0) at sys_getsockopt+0x15e sys/kern/uipc_syscalls.c:1275 syscall(ffff800025fd5960) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025fd5960) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ceb0ea25b0, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800025fd53d0 rbx 0xffff800020dd9b8f rdx 0xffff800000bd73c0 rcx 0 rax 0xffff800022d7b268 r8 0x101010101010101 r9 0x8080808080808080 r10 0xbef4c5672327a417 r11 0x2c5840a700bd3a37 r12 0xffff800020dd9990 r13 0 r14 0 r15 0x1 rip 0xffffffff817e9808 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800025fd53c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.5) pid=104581 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff800022d7a2a8,0xffffffff82b90490 process=0xffff8000212a6e20 user=0xffff800025fd0000, vmspace=0xfffffd807019c5d0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93100 30779 59883 32767 2 0x10 syz-executor.5 *93100 104581 59883 32767 7 0x4000010 syz-executor.5 31179 518074 31197 32767 2 0x10 syz-executor.4 31179 414890 31197 32767 3 0x4000090 fsleep syz-executor.4 1023 472334 27411 32767 2 0x10 syz-executor.3 68904 117919 40184 32767 2 0x10 syz-executor.6 68904 304153 40184 32767 3 0x4000090 kqread syz-executor.6 8194 372492 27812 32767 2 0x490 syz-executor.2 8194 90256 27812 32767 3 0x4000090 netcon syz-executor.2 8194 76286 27812 32767 3 0x4000090 fsleep syz-executor.2 8194 138977 27812 32767 3 0x4000090 fsleep syz-executor.2 56903 72211 77747 32767 2 0x10 syz-executor.7 56903 242760 77747 32767 7 0x4000010 syz-executor.7 56903 52760 77747 32767 3 0x4000090 fsleep syz-executor.7 56903 92273 77747 32767 3 0x4000090 fsleep syz-executor.7 27411 402908 54923 32767 2 0x490 syz-executor.3 54923 359941 21588 0 3 0x82 wait syz-executor.3 31197 523388 65715 32767 2 0x490 syz-executor.4 65715 355220 21588 0 3 0x82 wait syz-executor.4 42271 156724 0 0 3 0x14200 bored sosplice 40184 53930 90525 32767 2 0x490 syz-executor.6 77747 445664 75687 32767 3 0x90 nanoslp syz-executor.7 75687 97474 21588 0 3 0x82 wait syz-executor.7 59883 368984 89046 32767 3 0x90 nanoslp syz-executor.5 89046 228674 21588 0 3 0x82 wait syz-executor.5 90525 2536 21588 0 3 0x82 wait syz-executor.6 36270 275743 82219 32767 3 0x90 nanoslp syz-executor.1 27812 291147 37851 32767 3 0x90 nanoslp syz-executor.2 37851 46031 21588 0 3 0x82 wait syz-executor.2 60342 271583 43937 32767 2 0x490 syz-executor.0 82219 407192 21588 0 3 0x82 wait syz-executor.1 43937 104891 21588 0 3 0x82 wait syz-executor.0 21588 47936 84263 0 3 0x82 wait syz-fuzzer 21588 73747 84263 0 3 0x4000082 thrsleep syz-fuzzer 21588 496703 84263 0 3 0x4000082 wait syz-fuzzer 21588 108110 84263 0 3 0x4000082 thrsleep syz-fuzzer 21588 49961 84263 0 3 0x4000082 thrsleep syz-fuzzer 21588 436558 84263 0 3 0x4000082 thrsleep syz-fuzzer 21588 386029 84263 0 3 0x4000082 wait syz-fuzzer 21588 332217 84263 0 3 0x4000082 wait syz-fuzzer 21588 387979 84263 0 3 0x4000082 thrsleep syz-fuzzer 21588 148207 84263 0 3 0x4000082 wait syz-fuzzer 21588 352044 84263 0 3 0x4000082 wait syz-fuzzer 21588 333330 84263 0 3 0x4000082 wait syz-fuzzer 21588 257038 84263 0 3 0x4000082 thrsleep syz-fuzzer 21588 301170 84263 0 3 0x4000082 kqread syz-fuzzer 21588 84669 84263 0 3 0x4000082 thrsleep syz-fuzzer 21588 27798 84263 0 3 0x4000082 wait syz-fuzzer 84263 142376 57525 0 3 0x10008a sigsusp ksh 57525 248603 79968 0 3 0x9a kqread sshd 24208 58519 1 0 3 0x100083 ttyin getty 79968 141244 1 0 3 0x88 kqread sshd 67606 178816 17277 73 3 0x1100090 kqread syslogd 17277 338882 1 0 3 0x100082 netio syslogd 83640 154213 1 0 3 0x100080 kqread resolvd 13729 196141 66390 77 3 0x100092 kqread dhcpleased 90003 243721 66390 77 3 0x100092 kqread dhcpleased 66390 476880 1 0 3 0x80 kqread dhcpleased 30083 250482 0 0 3 0x14200 bored smr 50331 396840 0 0 2 0x14200 zerothread 61836 331797 0 0 3 0x14200 aiodoned aiodoned 59177 468605 0 0 3 0x14200 syncer update 56976 266427 0 0 3 0x14200 cleaner cleaner 95872 341080 0 0 3 0x14200 reaper reaper 55204 479519 0 0 3 0x14200 pgdaemon pagedaemon 79981 28384 0 0 3 0x14200 bored viomb 57758 292835 0 0 3 0x40014200 acpi0 acpi0 8884 244797 0 0 3 0x40014200 idle1 79018 514803 0 0 3 0x14200 bored softnet 81337 450451 0 0 3 0x14200 bored softnet 54737 267971 0 0 3 0x14200 bored softnet 58882 1491 0 0 3 0x14200 bored softnet 80924 493665 0 0 3 0x14200 bored systqmp 27279 161374 0 0 3 0x14200 bored systq 77571 222504 0 0 2 0x40014200 softclock 68113 495828 0 0 3 0x40014200 idle0 1 43699 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &inp->inp_mtx r = 0 (0xfffffd8068be5248) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 sys_getsockopt+0x145 sys/kern/uipc_syscalls.c:1275 #4 syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] #4 syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 #5 Xsyscall+0x128 Process 93100 (syz-executor.5) thread 0xffff800022d7b268 (104581) shared rwlock netlock r = 0 (0xffffffff82957180) #0 witness_lock+0x44d #1 solock_shared+0x64 pru_lock sys/sys/protosw.h:287 [inline] #1 solock_shared+0x64 sys/kern/uipc_socket2.c:371 #2 sys_getsockopt+0x145 sys/kern/uipc_syscalls.c:1275 #3 syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] #3 syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 #4 Xsyscall+0x128 exclusive mutex &inp->inp_mtx r = 0 (0xfffffd8068be5248) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 sys_getsockopt+0x145 sys/kern/uipc_syscalls.c:1275 #4 syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] #4 syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 #5 Xsyscall+0x128 Process 56903 (syz-executor.7) thread 0xffff800022d7a7e8 (242760) shared rwlock vmmaplk r = 0 (0xfffffd807019c398) #0 witness_lock+0x44d #1 uvmfault_lookup+0xc9 sys/uvm/uvm_fault.c:1773 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #4 kpageflttrap+0x22e sys/arch/amd64/amd64/trap.c:277 #5 kerntrap+0xef sys/arch/amd64/amd64/trap.c:332 #6 alltraps_kern_meltdown+0x7b #7 copyout+0x53 #8 syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10219 6413K 6420K 78643K 11323 0 pcb 13 12K 14K 78643K 17 0 rtable 252 7K 7K 78643K 970 0 ifaddr 71 16K 16K 78643K 97 0 sysctl 3 1K 3K 78643K 7 0 counters 60 35K 35K 78643K 68 0 ioctlops 0 0K 2K 78643K 91 0 iov 0 0K 32K 78643K 3979 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1272 80K 80K 78643K 3358 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 96 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 3625 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 24 89K 113K 78643K 7407 0 sigio 0 0K 0K 78643K 164 0 proc 56 78K 115K 78643K 973 0 subproc 104 6K 6K 78643K 156 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 791 0 in_multi 99 6K 6K 78643K 252 0 ether_multi 1 0K 0K 78643K 42 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 223 996K 996K 78643K 223 0 exec 0 0K 1K 78643K 1655 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 394 92K 105K 78643K 55218 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 2 0K 0K 78643K 315 0 NDP 11 0K 2K 78643K 39 0 temp 124 4694K 4822K 78643K 21122 0 kqueue 12 18K 28K 78643K 862 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 120 744 0 741 11 10 1 3 0 8 0 rtentry 112 169 0 50 4 0 4 4 0 8 0 unpcb 144 8185 0 8171 69 63 6 6 0 8 5 syncache 296 115 0 115 18 18 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 245 0 245 15 15 0 1 0 8 0 tcpcb 776 5787 0 5776 123 115 8 18 0 8 6 arp 120 28 0 8 1 0 1 1 0 8 0 ipq 40 8 0 8 4 4 0 1 0 8 0 ipqe 40 68 0 68 4 4 0 1 0 8 0 inpcb 368 9257 0 9242 130 120 10 20 0 8 8 nd6 48 48 0 17 1 0 1 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 664 0 185 31 0 31 31 0 8 0 art_table 32 665 0 185 4 0 4 4 0 8 0 art_node 16 168 0 59 1 0 1 1 0 8 0 semapl 112 3554 0 3544 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 12417 0 10967 91 0 91 91 0 8 0 ffsino 272 12417 0 10967 98 0 98 98 0 8 0 nchpl 144 22644 0 21008 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 82005 0 82005 2 1 1 2 0 8 1 percpumem 16 46 0 4 1 0 1 1 0 8 0 kstatmem 264 30 0 8 2 0 2 2 0 8 0 scxspl 216 62794 0 62794 30 29 1 8 0 8 1 plimitpl 152 1856 0 1832 15 14 1 2 0 8 0 sigapl 424 7682 0 7627 7 0 7 7 0 8 0 futexpl 64 74789 0 74784 1 0 1 1 0 8 0 knotepl 120 477 0 0 10 0 10 10 0 8 0 kqueuepl 216 9566 0 9554 88 83 5 12 0 8 4 pipepl 320 2601 0 2573 66 63 3 13 0 8 0 fdescpl 496 7664 0 7629 7 2 5 6 0 8 0 filepl 152 69959 0 69711 99 84 15 20 0 8 5 lockfpl 104 1046 0 1044 2 1 1 2 0 8 0 lockfspl 48 312 0 310 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 184 0 168 1 0 1 1 0 8 0 ucredpl 104 11412 0 11394 1 0 1 1 0 8 0 zombiepl 144 7629 0 7627 1 0 1 1 0 8 0 processpl 1072 7682 0 7627 4 0 4 4 0 8 0 procpl 672 22973 0 22894 17 9 8 9 0 8 1 sosppl 168 149 0 148 7 6 1 1 0 8 0 sockpl 488 18438 0 18406 374 362 12 33 0 8 8 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 23 0 0 3 0 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 26 0 0 4 2 2 3 0 8 0 mcl4k 4096 65 0 0 6 3 3 5 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 486 0 0 39 10 29 35 0 8 0 mtagpl 96 13 0 0 1 0 1 1 0 8 0 mbufpl 256 3794 0 0 216 0 216 216 0 8 0 bufpl 288 16623 0 10292 453 0 453 453 0 8 0 anonpl 24 1773528 0 1758959 200 86 114 127 0 186 9 amapchunkpl 152 177339 0 176551 128 93 35 45 0 158 0 amappl16 200 25725 0 25316 95 62 33 43 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 143 0 129 2 0 2 2 0 8 0 amappl13 176 18 0 18 4 4 0 1 0 8 0 amappl12 168 441 0 436 1 0 1 1 0 8 0 amappl11 160 47 0 36 1 0 1 1 0 8 0 amappl10 152 40 0 26 1 0 1 1 0 8 0 amappl9 144 1060 0 1059 1 0 1 1 0 8 0 amappl8 136 573 0 461 4 0 4 4 0 8 0 amappl7 128 223 0 198 2 0 2 2 0 8 0 amappl6 120 278 0 258 1 0 1 1 0 8 0 amappl5 112 320 0 314 1 0 1 1 0 8 0 amappl4 104 674 0 640 2 1 1 2 0 8 0 amappl3 96 23785 0 23720 2 0 2 2 0 8 0 amappl2 88 8336 0 8251 3 0 3 3 0 8 0 amappl1 80 179390 0 178582 26 7 19 22 0 8 0 amappl 88 54255 0 54027 7 1 6 6 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 7664 0 7629 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7664 0 7629 1 0 1 1 0 8 0 vmmpekpl 168 69667 0 69612 3 0 3 3 0 8 0 vmmpepl 168 729830 0 726783 208 59 149 150 0 357 10 vmsppl 368 7663 0 7629 4 0 4 4 0 8 0 rwobjpl 56 209544 0 201838 119 6 113 113 0 8 2 pdppl 4096 15335 0 15258 257 176 81 89 0 8 4 pvpl 32 3273559 0 3252834 414 205 209 254 0 265 20 pmappl 248 7663 0 7629 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1344 0 314 30 0 30 30 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff829ddff0) 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(2,0) at __sanitizer_cov_trace_const_cmp4+0x2a kd_curproc sys/dev/kcov.c:577 [inline] __sanitizer_cov_trace_const_cmp4(2,0) at __sanitizer_cov_trace_const_cmp4+0x2a sys/dev/kcov.c:225 uvm_fault(fffffd807019c2f0,72000,0,2) at uvm_fault+0xb1 sys/uvm/uvm_fault.c:589 kpageflttrap(ffff8000271db780,72900) at kpageflttrap+0x22e sys/arch/amd64/amd64/trap.c:277 kerntrap(ffff8000271db780) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x53 syscall(ffff8000271dbbd0) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff8000271dbbd0) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x285788f5e60, count: 4 ddb{0}> trace x86_ipi_db(ffffffff829ddff0) 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(2,0) at __sanitizer_cov_trace_const_cmp4+0x2a kd_curproc sys/dev/kcov.c:577 [inline] __sanitizer_cov_trace_const_cmp4(2,0) at __sanitizer_cov_trace_const_cmp4+0x2a sys/dev/kcov.c:225 uvm_fault(fffffd807019c2f0,72000,0,2) at uvm_fault+0xb1 sys/uvm/uvm_fault.c:589 kpageflttrap(ffff8000271db780,72900) at kpageflttrap+0x22e sys/arch/amd64/amd64/trap.c:277 kerntrap(ffff8000271db780) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x53 syscall(ffff8000271dbbd0) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff8000271dbbd0) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x285788f5e60, count: -11 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:437 panic(ffffffff825c306b) at panic+0x177 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82b8eb38,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 rt_clone(ffff800025fd56a8,fffffd8068be5210,0) at rt_clone+0x5c sys/net/route.c:257 rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc rt_match sys/net/route.c:235 [inline] rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc sys/net/route.c:350 in_pcbrtentry(fffffd8068be5188) at in_pcbrtentry+0x1cf ip6_ctloutput(0,fffffd806f687008,29,2c,fffffd806f44ad00) at ip6_ctloutput+0x1079 sys/netinet6/ip6_output.c:1511 sys_getsockopt(ffff800022d7b268,ffff800025fd5898,ffff800025fd58e0) at sys_getsockopt+0x15e sys/kern/uipc_syscalls.c:1275 syscall(ffff800025fd5960) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025fd5960) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ceb0ea25b0, count: 4 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825c306b) at panic+0x177 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff82b8eb38,9,0) at witness_checkorder+0x116d sys/kern/subr_witness.c:833 __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff82b8e930) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 rt_clone(ffff800025fd56a8,fffffd8068be5210,0) at rt_clone+0x5c sys/net/route.c:257 rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc rt_match sys/net/route.c:235 [inline] rtalloc_mpath(fffffd8068be5210,fffffd8068be51d8,0) at rtalloc_mpath+0xbc sys/net/route.c:350 in_pcbrtentry(fffffd8068be5188) at in_pcbrtentry+0x1cf ip6_ctloutput(0,fffffd806f687008,29,2c,fffffd806f44ad00) at ip6_ctloutput+0x1079 sys/netinet6/ip6_output.c:1511 sys_getsockopt(ffff800022d7b268,ffff800025fd5898,ffff800025fd58e0) at sys_getsockopt+0x15e sys/kern/uipc_syscalls.c:1275 syscall(ffff800025fd5960) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff800025fd5960) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ceb0ea25b0, count: -11