*cpu1: uvm_fault(0xfffffd806bee61b8, 0xf, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7c32db549ad0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002dd7c4a0 rbx 0 rdx 0 rcx 0xffff8000ffff27b8 rax 0x2a r8 0xffff80002dd7c3d0 r9 0 r10 0x8db20f97c3c17383 r11 0x3ba995f8ea40baad r12 0 r13 0 r14 0 r15 0 rip 0xffffffff813f24c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002dd7c420 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=351574 pid=72062 tcnt=1 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff22a8,0xffffffff835a6ab0 process=0xffff8000371cc020 user=0xffff80002dd77000, vmspace=0xfffffd806bee6dc0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *72062 351574 49038 0 7 0 syz-executor 83159 176084 81720 0 2 0 syz-executor 83159 417919 81720 0 3 0x4000080 fsleep syz-executor 97292 289550 9465 0 3 0x3000 suspend syz-executor 97292 496025 9465 0 2 0x4081000 syz-executor 46696 277616 12101 0 2 0 syz-executor 46696 287973 12101 0 3 0x4000080 piperd syz-executor 46696 268588 12101 0 3 0x4000080 fsleep syz-executor 55491 123277 43548 0 2 0 syz-executor 55491 170621 43548 0 7 0x4000000 syz-executor 73194 409252 37116 0 2 0 syz-executor 73194 152434 37116 0 3 0x4000080 fsleep syz-executor 73194 78057 37116 0 3 0x4000080 fsleep syz-executor 73194 146408 37116 0 3 0x4000080 fsleep syz-executor 49038 328450 56882 0 2 0x2 syz-executor 43548 379091 56882 0 3 0x82 nanoslp syz-executor 70732 98896 56882 0 2 0x2 syz-executor 12101 414052 56882 0 3 0x82 nanoslp syz-executor 9465 483892 56882 0 3 0x82 nanoslp syz-executor 37116 489385 56882 0 3 0x82 nanoslp syz-executor 70121 469942 56882 0 2 0x82 syz-executor 81720 381957 56882 0 3 0x82 nanoslp syz-executor 56882 315708 22658 0 2 0x82 syz-executor 22658 125336 39000 0 3 0x10008a sigsusp ksh 39000 235641 73364 0 3 0x98 kqread sshd-session 73364 505112 40933 0 3 0x92 kqread sshd-session 72317 36191 1 0 3 0x100083 ttyin getty 40933 80447 1 0 3 0x88 kqread sshd 14164 485994 44108 74 3 0x1100092 bpf pflogd 44108 493144 1 0 3 0x80 sbwait pflogd 43477 329573 28613 73 3 0x1100090 kqread syslogd 28613 12156 1 0 3 0x100082 sbwait syslogd 76435 42036 1 0 3 0x100080 kqread resolvd 94401 228482 50528 77 3 0x100092 kqread dhcpleased 16608 481294 50528 77 3 0x100092 kqread dhcpleased 50528 95073 1 0 3 0x80 kqread dhcpleased 93772 478830 0 0 3 0x14200 bored smr 46653 357915 0 0 2 0x14200 zerothread 34609 262908 0 0 3 0x14200 aiodoned aiodoned 96223 92855 0 0 3 0x14200 syncer update 12349 32523 0 0 3 0x14200 cleaner cleaner 27073 360188 0 0 3 0x14200 reaper reaper 39572 430078 0 0 3 0x14200 pgdaemon pagedaemon 32990 293774 0 0 3 0x14200 bored viomb 66048 163362 0 0 3 0x40014200 acpi0 acpi0 20558 114366 0 0 3 0x40014200 idle1 16235 482342 0 0 3 0x14200 bored softnet3 95760 492174 0 0 3 0x14200 bored softnet2 63813 496124 0 0 3 0x14200 bored softnet1 14583 196104 0 0 3 0x14200 bored softnet0 53855 167040 0 0 3 0x14200 bored systqmp 63927 390361 0 0 3 0x14200 bored systq 85898 288244 0 0 3 0x14200 tmoslp softclockmp 12922 195179 0 0 3 0x40014200 tmoslp softclock 84650 344557 0 0 3 0x40014200 idle0 1 337503 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806be2c4f8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2791 #4 uvm_fault_upper+0x376 sys/uvm/uvm_fault.c:1056 #5 uvm_fault+0x1b2 sys/uvm/uvm_fault.c:608 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 72062 (syz-executor) thread 0xffff8000ffff27b8 (351574) exclusive rwlock amaplk r = 0 (0xfffffd8077defcc0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_fault_check+0x521 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806bee6eb0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806be2c4f8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2791 #4 uvm_fault_upper+0x376 sys/uvm/uvm_fault.c:1056 #5 uvm_fault+0x1b2 sys/uvm/uvm_fault.c:608 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 55491 (syz-executor) thread 0xffff8000371d7c00 (170621) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff836034b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 getblk+0x197 sys/kern/vfs_bio.c:1025 #5 bread+0x47 bio_doread sys/kern/vfs_bio.c:430 [inline] #5 bread+0x47 sys/kern/vfs_bio.c:475 #6 ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91 #7 ufs_inactive+0x2e2 sys/ufs/ufs/ufs_inode.c:95 #8 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 #9 vrele+0x129 sys/kern/vfs_subr.c:827 #10 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x271 sys/kern/kern_ktrace.c:564 #12 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #12 doktrace+0x6dd sys/kern/kern_ktrace.c:508 #13 sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 #14 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #14 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 70732 (syz-executor) thread 0xffff800029fd8f38 (98896) exclusive rrwlock inode r = 0 (0xfffffd806bf24f80) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dofstatat+0xd2 sys/kern/vfs_syscalls.c:2069 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10187 11115K 11315K 166960K 11319 0 pcb 17 12K 12K 166960K 31 0 rtable 234 6K 6K 166960K 352 0 pf 36 18K 18K 166960K 49 0 ifaddr 43 7K 7K 166960K 47 0 ifgroup 55 2K 2K 166960K 57 0 counters 64 36K 36K 166960K 66 0 ioctlops 0 0K 4K 166960K 1490 0 iov 1 8K 8K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1371 86K 86K 166960K 1426 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 93K 166960K 194 0 sigio 0 0K 0K 166960K 2 0 proc 72 91K 140K 166960K 536 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 8 0 in_multi 100 7K 7K 166960K 106 0 ether_multi 1 0K 0K 166960K 2 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 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 363 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 226 72K 73K 166960K 3301 0 UVM aobj 3 2K 2K 166960K 4 0 pinsyscall 41 82K 104K 166960K 1268 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 7 0 NDP 12 0K 2K 166960K 30 0 temp 38 6810K 6875K 166960K 8832 0 kqueue 15 24K 26K 166960K 31 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 39 0 36 1 0 1 1 0 8 0 rtentry 112 111 0 1 4 0 4 4 0 8 0 unpcb 144 100 0 83 2 0 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 28 0 22 1 0 1 1 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 336 218 0 175 4 0 4 4 0 8 0 nd6 136 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 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 26 0 0 1 0 1 1 0 8 0 pfstkey 128 29 0 3 1 0 1 1 0 8 0 pfstate 376 27 0 2 3 0 3 3 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 452 0 0 29 0 29 29 0 8 0 art_table 32 453 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 semapl 112 2 0 1 1 0 1 1 0 8 0 shmpl 112 1 0 1 1 0 1 1 0 8 1 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1655 0 143 95 0 95 95 0 8 0 ffsino 272 1655 0 143 101 0 101 101 0 8 0 nchpl 144 1926 0 237 63 0 63 63 0 8 0 uvmvnodes 80 1800 0 0 37 0 37 37 0 8 0 vnodes 216 1800 0 0 100 0 100 100 0 8 0 namei 1024 5991 0 5990 2 0 2 2 0 8 1 percpumem 16 47 0 1 1 0 1 1 0 8 0 kstatmem 264 26 0 2 2 0 2 2 0 8 0 scxspl 216 5569 0 5569 3 1 2 2 1 8 2 plimitpl 152 68 0 51 1 0 1 1 0 8 0 sigapl 424 493 0 444 7 0 7 7 0 8 1 futexpl 64 940 0 935 1 0 1 1 0 8 0 knotepl 120 505 0 0 16 0 16 16 0 8 0 kqueuepl 216 33 0 22 1 0 1 1 0 8 0 pipepl 320 109 0 80 3 0 3 3 0 8 0 fdescpl 496 475 0 445 5 0 5 5 0 8 0 filepl 152 1862 0 1581 12 0 12 12 0 8 0 lockfpl 104 15 0 12 1 0 1 1 0 8 0 lockfspl 48 9 0 6 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 14 1 0 1 1 0 8 0 ucredpl 104 142 0 129 1 0 1 1 0 8 0 zombiepl 144 446 0 444 1 0 1 1 0 8 0 processpl 1160 493 0 444 5 0 5 5 0 8 1 procpl 648 594 0 537 6 0 6 6 0 8 0 sockpl 664 360 0 297 6 0 6 6 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 146 0 0 19 0 19 19 0 8 0 mcl2k 2048 16 0 0 2 0 2 2 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 144 0 0 9 0 9 9 0 8 0 bufpl 280 2325 0 97 160 0 160 160 0 8 0 anonpl 24 143001 0 139748 26 3 23 25 0 185 1 amapchunkpl 152 10610 0 10143 22 0 22 22 0 158 1 amappl16 200 3738 0 3718 5 2 3 5 0 8 1 amappl15 192 12 0 11 1 0 1 1 0 8 0 amappl14 184 142 0 130 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1123 0 1093 3 1 2 2 0 8 0 amappl11 160 57 0 42 1 0 1 1 0 8 0 amappl10 152 31 0 31 1 1 0 1 0 8 0 amappl9 144 133 0 133 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 107 0 95 1 0 1 1 0 8 0 amappl6 120 191 0 189 1 0 1 1 0 8 0 amappl5 112 138 0 127 1 0 1 1 0 8 0 amappl4 104 305 0 287 1 0 1 1 0 8 0 amappl3 96 2121 0 2013 4 0 4 4 0 8 0 amappl2 88 673 0 608 2 0 2 2 0 8 0 amappl1 80 7864 0 7305 14 0 14 14 0 8 0 amappl 88 2933 0 2770 5 0 5 5 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 3 0 1 1 0 1 1 0 8 0 uaddrrnd 24 475 0 445 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 475 0 445 1 0 1 1 0 8 0 vmmpekpl 168 5442 0 5403 2 0 2 2 0 8 0 vmmpepl 168 37975 0 36188 86 0 86 86 0 357 2 vmsppl 440 474 0 445 6 1 5 5 0 8 1 rwobjpl 56 16864 0 14159 39 0 39 39 0 8 0 pdppl 4096 957 0 890 101 28 73 85 0 8 6 pvpl 32 10720 0 0 87 0 87 87 0 265 0 pmappl 248 474 0 445 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 375 0 31 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7c32db549ad0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,2d) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,2d) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(2d) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff830915f7) at db_printf+0x9b fault(ffffffff8304018c) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff8000371ef1e0,f) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff8000371ef1e0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b ktrops(ffff8000371d7c00,ffffffffffffffff,0,80000112,fffffd80664cd8a8,fffffd807f7d3680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000371d7c00,ffffffffffffffff,0,80000112,fffffd80664cd8a8,fffffd807f7d3680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 end trace frame: 0xffff8000371ef3f0, count: 0 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:654 comcnputc(800,2d) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,2d) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(2d) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff830915f7) at db_printf+0x9b fault(ffffffff8304018c) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff8000371ef1e0,f) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff8000371ef1e0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b ktrops(ffff8000371d7c00,ffffffffffffffff,0,80000112,fffffd80664cd8a8,fffffd807f7d3680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000371d7c00,ffffffffffffffff,0,80000112,fffffd80664cd8a8,fffffd807f7d3680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80664cd8a8,4,112,0,ffff8000371d7c00) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80664cd8a8,4,112,0,ffff8000371d7c00) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000371d7c00,ffff8000371ef5f0,ffff8000371ef540) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000371ef5f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371ef5f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xceb26f8d7b0, count: -18