login: kernel: protection fault trap, code=0 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace ktrops(ffff80002a2192a8,deadbeefdeadbeef,0,80001928,fffffd8067dbed98,fffffd807f7d7680) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a2192a8,deadbeefdeadbeef,0,80001928,fffffd8067dbed98,fffffd807f7d7680) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd8067dbed98,4,1928,0,ffff80002a2192a8) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8067dbed98,4,1928,0,ffff80002a2192a8) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a2192a8,ffff80002bc92d70,ffff80002bc92cc0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002bc92d70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002bc92d70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca79136a3a0, count: -5 ddb{1}> show registers rdi 0xffff80002f0d5000 rsi 0x27f9 __ALIGN_SIZE+0x17f9 rbp 0xffff80002bc92a90 rbx 0xdeadbeefdeadbeef rdx 0xffff80002f0d5000 rcx 0x27f8 __ALIGN_SIZE+0x17f8 rax 0xffffffff817e7f33 ktrops+0x43 r8 0xfffffd8067dbed98 r9 0xfffffd807f7d7680 r10 0x50463cb41b0b9baf r11 0x208a281d753842ac r12 0xdeadbeefdeadbeef r13 0xfffffd807f7d7680 r14 0xffff80002a2192a8 r15 0x80001928 __kernel_virt_to_phys+0x1928 rip 0xffffffff817e7f3e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002bc92a10 ss 0 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor.3) tid=295946 pid=23400 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=82, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a21a540,0xffffffff82d4ea90 process=0xffff80002c0c0910 user=0xffff80002bc8d000, vmspace=0xfffffd80694e5570 estcpu=32, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 23400 328215 79897 0 2 0 syz-executor.3 *23400 295946 79897 0 7 0x4000000 syz-executor.3 93377 299605 1 0 3 0x100083 ttyin getty 82841 79314 0 0 3 0x14280 nfsidl nfsio 3607 401158 0 0 3 0x14280 nfsidl nfsio 57567 306802 0 0 3 0x14280 nfsidl nfsio 83002 238993 0 0 3 0x14280 nfsidl nfsio 2527 205435 0 0 3 0x14280 nfsidl nfsio 3197 327777 0 0 3 0x14280 nfsidl nfsio 50101 68847 0 0 3 0x14280 nfsidl nfsio 38836 65561 0 0 3 0x14280 nfsidl nfsio 66825 1793 0 0 3 0x14280 nfsidl nfsio 79154 492268 0 0 3 0x14280 nfsidl nfsio 12640 167857 0 0 3 0x14280 nfsidl nfsio 14137 209521 0 0 3 0x14280 nfsidl nfsio 97098 213832 0 0 3 0x14280 nfsidl nfsio 92731 422979 0 0 3 0x14280 nfsidl nfsio 17664 457909 0 0 3 0x14280 nfsidl nfsio 76006 490977 0 0 3 0x14280 nfsidl nfsio 35018 289156 0 0 3 0x14280 nfsidl nfsio 20711 445141 0 0 3 0x14280 nfsidl nfsio 38364 208127 0 0 3 0x14280 nfsidl nfsio 66074 225916 0 0 3 0x14280 nfsidl nfsio 82708 421648 71892 0 2 0x2 syz-executor.1 38701 309662 71892 0 3 0x2 biowait syz-executor.7 73565 54618 71892 0 2 0x2 syz-executor.4 1167 297255 71892 0 3 0x82 nanoslp syz-executor.5 79897 25264 71892 0 3 0x82 nanoslp syz-executor.3 30466 330541 71892 0 2 0x2 syz-executor.2 69507 225632 71892 0 2 0x2 syz-executor.0 31151 413522 0 0 3 0x14200 bored sosplice 23458 263736 71892 0 2 0x2 syz-executor.6 71892 503800 15977 0 3 0x2000082 wait syz-fuzzer 71892 336427 15977 0 2 0x6000482 syz-fuzzer 71892 305124 15977 0 3 0x6000082 thrsleep syz-fuzzer 71892 302524 15977 0 3 0x6000082 wait syz-fuzzer 71892 273879 15977 0 2 0x6000082 syz-fuzzer 71892 459250 15977 0 3 0x6000082 wait syz-fuzzer 71892 346724 15977 0 3 0x6000082 wait syz-fuzzer 71892 124603 15977 0 3 0x6000082 thrsleep syz-fuzzer 71892 137984 15977 0 3 0x6000082 thrsleep syz-fuzzer 71892 121081 15977 0 3 0x6000082 thrsleep syz-fuzzer 71892 333229 15977 0 3 0x6000082 wait syz-fuzzer 71892 91962 15977 0 3 0x6000082 wait syz-fuzzer 71892 419051 15977 0 3 0x6000082 wait syz-fuzzer 71892 95237 15977 0 3 0x6000082 wait syz-fuzzer 71892 18771 15977 0 3 0x6000082 thrsleep syz-fuzzer 71892 311457 15977 0 2 0x6000002 syz-fuzzer 15977 341982 63045 0 3 0x10008a sigsusp ksh 63045 423182 94617 0 7 0x12 sshd 94617 398000 1 0 3 0x88 kqread sshd 36417 254426 81759 74 3 0x1100092 bpf pflogd 81759 422659 1 0 3 0x80 netio pflogd 69966 194608 30409 73 3 0x1100090 kqread syslogd 30409 41892 1 0 3 0x100082 netio syslogd 34007 88180 1 0 3 0x100080 kqread resolvd 69771 384614 16036 77 3 0x100092 kqread dhcpleased 91782 156529 16036 77 3 0x100092 kqread dhcpleased 16036 127474 1 0 3 0x80 kqread dhcpleased 57959 451566 0 0 3 0x14200 bored smr 31312 62518 0 0 2 0x14200 zerothread 27080 6660 0 0 3 0x14200 aiodoned aiodoned 27426 215471 0 0 3 0x14200 syncer update 58772 208178 0 0 3 0x14200 cleaner cleaner 25501 316806 0 0 3 0x14200 reaper reaper 34432 193364 0 0 3 0x14200 pgdaemon pagedaemon 81186 91815 0 0 3 0x14200 bored viomb 6445 136140 0 0 3 0x40014200 acpi0 acpi0 37402 211627 0 0 3 0x40014200 idle1 6247 84472 0 0 3 0x14200 bored softnet3 76920 36108 0 0 3 0x14200 bored softnet2 30850 76927 0 0 3 0x14200 bored softnet1 27729 145 0 0 3 0x14200 bored softnet0 36787 13091 0 0 3 0x14200 bored systqmp 21484 475253 0 0 3 0x14200 bored systq 4052 368221 0 0 3 0x14200 tmoslp softclockmp 14129 254461 0 0 3 0x40014200 tmoslp softclock 52562 446840 0 0 3 0x40014200 idle0 1 428290 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 23400 (syz-executor.3) thread 0xffff80002a2192a8 (295946) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e41d28) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 biowait+0x91 sys/kern/vfs_bio.c:1278 #5 bwrite+0x21c sys/kern/vfs_bio.c:769 #6 ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113 #7 ffs_truncate+0xc9b #8 ufs_inactive+0x152 sys/ufs/ufs/ufs_inode.c:84 #9 VOP_INACTIVE+0xc5 sys/kern/vfs_vops.c:489 #10 vrele+0xd3 sys/kern/vfs_subr.c:827 #11 ktrsettrace+0xb7 sys/kern/kern_ktrace.c:122 #12 ktrops+0x1a8 sys/kern/kern_ktrace.c:564 #13 doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #13 doktrace+0x524 sys/kern/kern_ktrace.c:508 #14 sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 #15 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #15 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 Process 82708 (syz-executor.1) thread 0xffff80002a197570 (421648) exclusive rrwlock inode r = 0 (0xfffffd806e35a3d0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1ac sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #10 namei+0x55a sys/kern/vfs_lookup.c:250 #11 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #12 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 Process 38701 (syz-executor.7) thread 0xffff80002a23dab0 (309662) exclusive rrwlock inode r = 0 (0xfffffd8064c61b40) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314 #8 ufs_lookup+0x1323 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #13 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #13 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8064c6a098) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 6514K 7024K 166960K 15924 0 pcb 15 18K 20K 166960K 362 0 rtable 245 8K 8K 166960K 1121 0 pf 34 9K 10K 166960K 150 0 ifaddr 46 16K 16K 166960K 138 0 ifgroup 59 2K 2K 166960K 232 0 sysctl 4 1K 1K 166960K 4 0 counters 66 36K 36K 166960K 154 0 ioctlops 0 0K 4K 166960K 1830 0 iov 0 0K 33K 166960K 488 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1348 84K 85K 166960K 3402 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 65 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 290 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 11 37K 89K 166960K 4543 0 sigio 0 0K 0K 166960K 314 0 proc 70 91K 127K 166960K 1137 0 subproc 104 6K 6K 166960K 289 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 454 0 in_multi 99 7K 7K 166960K 286 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 169 758K 758K 166960K 169 0 exec 0 0K 1K 166960K 964 0 pfkey data 0 0K 0K 166960K 2 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 365 177K 179K 166960K 46781 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 193 0 NDP 13 0K 1K 166960K 101 0 temp 75 6712K 7347K 166960K 36303 0 kqueue 12 18K 26K 166960K 456 0 SYN cache 2 36K 44K 166960K 3 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 225 0 222 2 1 1 2 0 8 0 rtentry 112 293 0 181 5 1 4 4 0 8 0 unpcb 144 3963 0 3948 53 47 6 10 0 8 5 syncache 320 38 0 38 8 7 1 1 0 8 1 tcpqe 32 369 0 369 8 8 0 1 0 8 0 tcpcb 808 1806 0 1781 61 51 10 16 0 8 4 arp 120 55 0 37 1 0 1 1 0 8 0 inpcb 376 4114 0 4086 82 72 10 16 0 8 5 nd6 136 71 0 45 1 0 1 1 0 8 0 pkpcb 40 11 0 11 2 2 0 1 0 8 0 kcovpl 48 22 0 14 1 0 1 1 0 8 0 ppxss 1168 10 0 10 4 4 0 1 0 8 0 pffrag 232 49 0 48 2 1 1 1 0 482 0 pffrnode 88 49 0 48 2 1 1 1 0 8 0 pffrent 40 171 0 170 2 1 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 24 149 0 124 1 0 1 1 0 8 0 pfstkey 128 150 0 125 2 0 2 2 0 8 0 pfstate 376 150 0 125 5 1 4 4 0 8 0 pfrule 1344 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 1109 0 644 41 11 30 30 0 8 0 art_table 32 1110 0 644 4 0 4 4 0 8 0 art_node 16 289 0 187 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 15 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 288 0 278 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 7242 0 5781 92 0 92 92 0 8 0 ffsino 272 7242 0 5781 98 0 98 98 0 8 0 nchpl 144 13440 0 11784 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 45636 0 45636 3 2 1 2 0 8 1 percpumem 16 91 0 44 1 0 1 1 0 8 0 vcpupl 2048 29 0 0 4 0 4 4 0 8 0 vmpool 696 32 0 3 3 0 3 3 0 8 0 kstatmem 264 114 0 88 2 0 2 2 0 8 0 scxspl 216 40080 0 40079 19 18 1 8 1 8 0 plimitpl 152 607 0 591 1 0 1 1 0 8 0 sigapl 424 4987 0 4923 9 1 8 8 0 8 0 futexpl 64 35355 0 35355 1 0 1 1 0 8 1 knotepl 120 343 0 0 10 0 10 10 0 8 0 kqueuepl 216 1021 0 1013 17 16 1 5 0 8 0 pipepl 320 681 0 653 18 15 3 11 0 8 0 fdescpl 496 4828 0 4804 11 7 4 5 0 8 0 filepl 152 28386 0 28143 67 52 15 23 0 8 3 lockfpl 104 962 0 960 2 1 1 2 0 8 0 lockfspl 48 402 0 400 1 0 1 1 0 8 0 sessionpl 144 42 0 25 1 0 1 1 0 8 0 pgrppl 48 84 0 67 1 0 1 1 0 8 0 ucredpl 104 3758 0 3743 1 0 1 1 0 8 0 zombiepl 144 4924 0 4923 1 0 1 1 0 8 0 processpl 1136 4987 0 4923 7 1 6 6 0 8 0 procpl 680 12877 0 12797 11 2 9 9 0 8 1 srpgc 96 28 0 28 9 9 0 1 0 8 0 sosppl 168 52 0 47 4 3 1 1 0 8 0 sockpl 488 8329 0 8283 192 169 23 36 0 8 14 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 16 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 9 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 33 0 0 4 1 3 4 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 339 0 0 41 0 41 41 0 8 0 mtagpl 96 321 0 0 7 0 7 7 0 8 0 mbufpl 256 670 0 0 33 0 33 33 0 8 0 bufpl 288 10994 0 4675 452 0 452 452 0 8 0 anonpl 24 601564 0 587906 132 34 98 109 0 186 0 amapchunkpl 152 153347 0 152591 56 17 39 51 0 158 1 amappl16 200 13464 0 13009 78 51 27 37 0 8 1 amappl15 192 18 0 18 1 1 0 1 0 8 0 amappl14 184 249 0 234 2 1 1 2 0 8 0 amappl13 176 66 0 63 1 0 1 1 0 8 0 amappl12 168 5751 0 5723 4 2 2 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 47 0 36 2 1 1 1 0 8 0 amappl9 144 240 0 240 13 12 1 1 0 8 1 amappl8 136 441 0 346 4 0 4 4 0 8 0 amappl7 128 265 0 239 2 0 2 2 0 8 0 amappl6 120 512 0 499 1 0 1 1 0 8 0 amappl5 112 193 0 182 1 0 1 1 0 8 0 amappl4 104 637 0 599 4 2 2 2 0 8 0 amappl3 96 28743 0 28678 3 0 3 3 0 8 0 amappl2 88 5497 0 5422 3 1 2 3 0 8 0 amappl1 80 26601 0 26053 23 10 13 23 0 8 0 amappl 88 45965 0 45767 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 4860 0 4807 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4860 0 4807 1 0 1 1 0 8 0 vmmpekpl 168 40598 0 40515 4 0 4 4 0 8 0 vmmpepl 168 307436 0 305246 235 102 133 139 0 357 10 vmsppl 448 4859 0 4807 9 2 7 7 0 8 0 rwobjpl 56 85768 0 78153 117 7 110 112 0 8 0 pdppl 4096 9727 0 9643 296 198 98 99 0 8 14 pvpl 32 44716 0 0 361 0 361 361 0 265 0 pmappl 248 4859 0 4807 6 2 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1163 0 273 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82d14ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82e41b20) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e41b20) at __mp_lock+0x133 sys/kern/kern_lock.c:147 intr_handler(ffff80002a1a9c00,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82e41b20) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e41b20) at __mp_lock+0x133 sys/kern/kern_lock.c:147 doppoll(ffff80002a155ff8,474387ff540,4,0,ffff80002a1aa004,ffff80002a1aa0a0) at doppoll+0x159 sys/kern/sys_generic.c:950 sys_ppoll(ffff80002a155ff8,ffff80002a1aa150,ffff80002a1aa0a0) at sys_ppoll+0x137 sys/kern/sys_generic.c:916 syscall(ffff80002a1aa150) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a1aa150) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7331a494a020, count: -13 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff80002a2192a8,deadbeefdeadbeef,0,80001928,fffffd8067dbed98,fffffd807f7d7680) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a2192a8,deadbeefdeadbeef,0,80001928,fffffd8067dbed98,fffffd807f7d7680) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd8067dbed98,4,1928,0,ffff80002a2192a8) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8067dbed98,4,1928,0,ffff80002a2192a8) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a2192a8,ffff80002bc92d70,ffff80002bc92cc0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002bc92d70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002bc92d70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca79136a3a0, count: -5