panic: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *247295 22590 0 0 0x4000000 0 syz-executor.1 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 end trace frame: 0xffff8000205dd820, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline] doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d sys/kern/kern_ktrace.c:488 sys_ktrace(ffff80001d75d618,ffff8000205dd978,ffff8000205dd9c0) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529 syscall(ffff8000205dda40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec199989db0, count: -18 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000205dd0b0 rbx 0xffff8000205dd160 rdx 0x2 rcx 0 rax 0x1 r8 0xffffffff81a28cbf kprintf+0x15f r9 0x1 r10 0x2 r11 0x88878de8411ced01 r12 0x3000000008 r13 0xffff8000205dd0c0 r14 0x100 r15 0x1 rip 0xffffffff81eb16e8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000205dd0a0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.1) pid=247295 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001d75daf8,0xffffffff827f1be8 process=0xffff80002059e770 user=0xffff8000205d8000, vmspace=0xfffffd805783e780 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 22590 166154 71481 0 2 0 syz-executor.1 *22590 247295 71481 0 7 0x4000000 syz-executor.1 71481 512906 41670 0 3 0x82 nanosleep syz-executor.1 12958 446867 0 0 3 0x14280 nfsidl nfsio 1557 364716 0 0 3 0x14280 nfsidl nfsio 50570 23117 0 0 3 0x14280 nfsidl nfsio 74786 20875 0 0 3 0x14280 nfsidl nfsio 93296 221509 0 0 3 0x14280 nfsidl nfsio 17839 253034 0 0 3 0x14280 nfsidl nfsio 89861 523781 0 0 3 0x14280 nfsidl nfsio 30201 290486 0 0 3 0x14280 nfsidl nfsio 19440 101798 0 0 3 0x14280 nfsidl nfsio 13305 238676 0 0 3 0x14280 nfsidl nfsio 88030 415033 0 0 3 0x14280 nfsidl nfsio 37988 394244 0 0 3 0x14280 nfsidl nfsio 4907 138975 0 0 3 0x14280 nfsidl nfsio 40209 283664 0 0 3 0x14280 nfsidl nfsio 64825 255705 0 0 3 0x14280 nfsidl nfsio 30027 522338 0 0 3 0x14280 nfsidl nfsio 64910 44238 0 0 3 0x14280 nfsidl nfsio 68349 218191 0 0 3 0x14280 nfsidl nfsio 69103 414865 0 0 3 0x14280 nfsidl nfsio 7129 272760 0 0 3 0x14280 nfsidl nfsio 45366 484236 41670 0 3 0x82 piperd syz-executor.0 59479 439516 1 0 3 0x100083 ttyin getty 84677 68871 0 0 3 0x14200 bored sosplice 41670 214227 99204 0 3 0x82 thrsleep syz-fuzzer 41670 109278 99204 0 3 0x4000082 nanosleep syz-fuzzer 41670 255452 99204 0 2 0x4000002 syz-fuzzer 41670 86558 99204 0 3 0x4000082 thrsleep syz-fuzzer 41670 182877 99204 0 3 0x4000082 thrsleep syz-fuzzer 41670 32509 99204 0 3 0x4000082 thrsleep syz-fuzzer 41670 30619 99204 0 3 0x4000082 thrsleep syz-fuzzer 41670 465597 99204 0 3 0x4000082 thrsleep syz-fuzzer 99204 8845 91894 0 3 0x10008a pause ksh 91894 382674 58699 0 3 0x92 select sshd 58699 404995 1 0 3 0x80 select sshd 15905 450700 25123 73 3 0x100090 kqread syslogd 25123 265623 1 0 3 0x100082 netio syslogd 64286 279731 1 77 3 0x100090 poll dhclient 64226 236606 1 0 3 0x80 poll dhclient 73392 58539 0 0 3 0x14200 bored smr 5004 67532 0 0 2 0x14200 zerothread 66264 458732 0 0 3 0x14200 aiodoned aiodoned 85266 379901 0 0 3 0x14200 syncer update 33950 406405 0 0 3 0x14200 cleaner cleaner 17132 24771 0 0 3 0x14200 reaper reaper 66963 302259 0 0 3 0x14200 pgdaemon pagedaemon 52160 388413 0 0 3 0x14200 bored crynlk 98268 272024 0 0 3 0x14200 bored crypto 80200 436427 0 0 3 0x40014200 acpi0 acpi0 17470 191356 0 0 3 0x14200 bored softnet 6983 168697 0 0 3 0x14200 bored systqmp 75526 147516 0 0 3 0x14200 bored systq 15398 83109 0 0 3 0x40014200 bored softclock 62030 238705 0 0 3 0x40014200 idle0 1 231233 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9533 6507K 7205K 78643K 13591 0 pcb 13 8K 8K 78643K 180 0 rtable 132 14K 17K 78643K 965 0 ifaddr 102 20K 21K 78643K 321 0 sysctl 2 0K 0K 78643K 2 0 counters 21 16K 17K 78643K 45 0 ioctlops 0 0K 4K 78643K 228 0 iov 0 0K 16K 78643K 175 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 2266 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 121 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 1194 0 sigio 0 0K 0K 78643K 18 0 proc 52 38K 55K 78643K 604 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 107 0 in_multi 66 3K 3K 78643K 247 0 ether_multi 1 0K 0K 78643K 31 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 356 0 pfkey data 0 0K 0K 78643K 2 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 151 121K 130K 78643K 3637 0 UVM aobj 57 6K 6K 78643K 68 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 178 0 NDP 15 0K 0K 78643K 57 0 temp 157 3890K 3964K 78643K 63739 0 kqueue 3 4K 12K 78643K 61 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 17 0 9 1 0 1 1 0 8 0 rtpcb 80 91 0 89 1 0 1 1 0 8 0 rtentry 112 139 0 106 2 0 2 2 0 8 0 unpcb 120 391 0 381 1 0 1 1 0 8 0 syncache 264 8 0 8 3 3 0 1 0 8 0 tcpqe 32 39 0 39 1 1 0 1 0 8 0 tcpcb 544 376 0 372 1 0 1 1 0 8 0 ipq 40 11 0 11 3 3 0 1 0 8 0 ipqe 40 200 0 200 3 3 0 1 0 8 0 inpcb 296 2277 0 2270 6 4 2 2 0 8 1 nd6 48 28 0 25 3 2 1 1 0 8 0 pkpcb 40 12 0 12 3 3 0 1 0 8 0 ppxss 1128 4 0 4 3 3 0 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 147 0 126 4 2 2 3 0 8 0 pftag 88 25 0 18 1 0 1 1 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 112 10 0 8 2 1 1 1 0 8 0 pfstate 328 5 0 4 2 1 1 1 0 8 0 pfrule 1360 76 0 38 5 1 4 4 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 615 0 460 16 6 10 13 0 8 0 art_table 32 617 0 460 2 0 2 2 0 8 0 art_node 16 131 0 105 1 0 1 1 0 8 0 sysvmsgpl 40 45 0 22 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 113 0 103 1 0 1 1 0 8 0 shmpl 112 65 0 11 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2987 0 1594 88 0 88 88 0 8 0 ffsino 240 2987 0 1594 83 0 83 83 0 8 0 nchpl 144 4884 0 3298 60 0 60 60 0 8 0 uvmvnodes 72 3902 0 0 71 0 71 71 0 8 0 vnodes 208 3902 0 0 206 0 206 206 0 8 0 namei 1024 15144 0 15144 7 6 1 1 0 8 1 vcpupl 1984 11 0 0 2 0 2 2 0 8 0 vmpool 528 23 0 12 1 0 1 1 0 8 0 pfiaddrpl 120 72 0 44 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 33448 0 33447 5 4 1 1 0 8 0 plimitpl 152 101 0 94 1 0 1 1 0 8 0 sigapl 424 1395 0 1346 6 0 6 6 0 8 0 futexpl 56 24656 0 24656 6 5 1 1 0 8 1 knotepl 112 152 0 133 1 0 1 1 0 8 0 kqueuepl 144 156 0 153 1 0 1 1 0 8 0 pipepl 272 207 0 197 1 0 1 1 0 8 0 fdescpl 432 1359 0 1345 2 0 2 2 0 8 0 filepl 120 9246 0 9148 6 2 4 4 0 8 1 lockfpl 104 214 0 212 1 0 1 1 0 8 0 lockfspl 48 73 0 71 1 0 1 1 0 8 0 sessionpl 112 22 0 12 1 0 1 1 0 8 0 pgrppl 48 50 0 40 1 0 1 1 0 8 0 ucredpl 96 1352 0 1345 1 0 1 1 0 8 0 zombiepl 144 1346 0 1346 3 2 1 1 0 8 1 processpl 928 1395 0 1346 7 0 7 7 0 8 0 procpl 624 2753 0 2696 6 1 5 5 0 8 0 sosppl 128 17 0 17 5 5 0 1 0 8 0 sockpl 400 2773 0 2754 10 7 3 4 0 8 1 mcl64k 65536 341 0 341 38 38 0 33 0 8 0 mcl16k 16384 3 0 3 2 1 1 1 0 8 1 mcl12k 12288 35 0 35 6 5 1 1 0 8 1 mcl9k 9216 14 0 14 6 6 0 1 0 8 0 mcl8k 8192 44 0 44 5 5 0 1 0 8 0 mcl4k 4096 93 0 93 7 6 1 1 0 8 1 mcl2k2 2112 7 0 7 4 4 0 1 0 8 0 mcl2k 2048 72159 0 72106 17 9 8 12 0 8 0 mtagpl 96 101 0 85 3 2 1 2 0 8 0 mbufpl 256 124651 0 124446 56 38 18 30 0 8 0 bufpl 280 8122 0 2770 383 0 383 383 0 8 0 anonpl 16 171238 0 154843 126 47 79 88 0 107 5 amapchunkpl 152 6957 0 6779 43 31 12 18 0 158 4 amappl16 192 7217 0 6251 96 39 57 61 0 8 8 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 445 0 439 1 0 1 1 0 8 0 amappl13 168 417 0 413 1 0 1 1 0 8 0 amappl12 160 375 0 374 3 2 1 1 0 8 0 amappl11 152 53 0 43 1 0 1 1 0 8 0 amappl10 144 12 0 6 1 0 1 1 0 8 0 amappl9 136 713 0 710 1 0 1 1 0 8 0 amappl8 128 740 0 698 2 0 2 2 0 8 0 amappl7 120 129 0 117 1 0 1 1 0 8 0 amappl6 112 26 0 21 1 0 1 1 0 8 0 amappl5 104 948 0 935 1 0 1 1 0 8 0 amappl4 96 854 0 828 1 0 1 1 0 8 0 amappl3 88 923 0 917 1 0 1 1 0 8 0 amappl2 80 9873 0 9805 2 0 2 2 0 8 0 amappl1 72 32775 0 32363 23 13 10 17 0 8 0 amappl 80 3024 0 2970 3 1 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 67 0 11 1 0 1 1 0 8 0 uaddrrnd 24 1382 0 1357 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1382 0 1357 1 0 1 1 0 8 0 vmmpekpl 168 10524 0 10490 2 0 2 2 0 8 0 vmmpepl 168 168395 0 166281 220 117 103 129 0 357 5 vmsppl 272 1381 0 1357 3 1 2 2 0 8 0 pdppl 4096 2770 0 2725 8 2 6 6 0 8 0 pvpl 32 497975 0 478953 401 185 216 309 0 265 50 pmappl 200 1381 0 1357 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 360 0 123 9 2 7 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline] doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d sys/kern/kern_ktrace.c:488 sys_ktrace(ffff80001d75d618,ffff8000205dd978,ffff8000205dd9c0) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529 syscall(ffff8000205dda40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec199989db0, count: -18 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline] doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d sys/kern/kern_ktrace.c:488 sys_ktrace(ffff80001d75d618,ffff8000205dd978,ffff8000205dd9c0) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529 syscall(ffff8000205dda40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec199989db0, count: -18