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 *430331 51650 0 0 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823dbdd0) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff82446b7d,ffffffff8245bbe0,136,ffffffff82417ec3) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd8057ce3378) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd8057ce3378) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd8057ce3378) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd8057ce3378) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd8058d4f0e8,2,ffffffffffffffff,ffff80001d793618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd80676080f8,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff800020857468) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8058d4f0e8,ffff80001d793618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd8058d4f0e8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c4010,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d793618,ffff80001d6c4010,0,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 end trace frame: 0xffff8000208576d0, 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(ffffffff823dbdd0) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff82446b7d,ffffffff8245bbe0,136,ffffffff82417ec3) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd8057ce3378) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd8057ce3378) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd8057ce3378) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd8057ce3378) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd8058d4f0e8,2,ffffffffffffffff,ffff80001d793618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd80676080f8,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff800020857468) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8058d4f0e8,ffff80001d793618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd8058d4f0e8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c4010,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d793618,ffff80001d6c4010,0,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 doktrace(fffffd805806f280,4,100,0,ffff80001d793618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline] doktrace(fffffd805806f280,4,100,0,ffff80001d793618) at doktrace+0x60d sys/kern/kern_ktrace.c:488 sys_ktrace(ffff80001d793618,ffff800020857828,ffff800020857870) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529 syscall(ffff8000208578f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9debd4e8510, count: -18 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff800020856f60 rbx 0xffff800020857010 rdx 0x2 rcx 0 rax 0x1 r8 0xffffffff815b41af kprintf+0x15f r9 0x1 r10 0x2 r11 0xfa6b07648d8b543d r12 0x3000000008 r13 0xffff800020856f70 r14 0x100 r15 0x1 rip 0xffffffff81565828 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020856f50 ss 0 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=430331 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff80001d792298,0xffffffff8284f0f8 process=0xffff80001e7ce770 user=0xffff800020852000, vmspace=0xfffffd8057d0a440 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 51650 191846 40746 0 2 0 syz-executor.0 51650 233837 40746 0 3 0x4000080 fsleep syz-executor.0 *51650 430331 40746 0 7 0x4000000 syz-executor.0 40746 425165 13686 0 3 0x82 nanosleep syz-executor.0 21648 164376 1 0 3 0x100083 ttyin getty 97149 190553 13686 0 3 0x82 piperd syz-executor.1 45684 292321 0 0 3 0x14280 nfsidl nfsio 28912 290426 0 0 3 0x14280 nfsidl nfsio 63981 360392 0 0 3 0x14280 nfsidl nfsio 21522 281025 0 0 3 0x14280 nfsidl nfsio 72207 522597 0 0 3 0x14280 nfsidl nfsio 38414 241401 0 0 3 0x14280 nfsidl nfsio 22229 253223 0 0 3 0x14280 nfsidl nfsio 5647 454167 0 0 3 0x14280 nfsidl nfsio 52424 284759 0 0 3 0x14280 nfsidl nfsio 55969 218146 0 0 3 0x14280 nfsidl nfsio 43673 246272 0 0 3 0x14280 nfsidl nfsio 81481 382670 0 0 3 0x14280 nfsidl nfsio 80826 408903 0 0 3 0x14280 nfsidl nfsio 40180 56256 0 0 3 0x14280 nfsidl nfsio 37404 402182 0 0 3 0x14280 nfsidl nfsio 48902 143377 0 0 3 0x14280 nfsidl nfsio 92376 387056 0 0 3 0x14280 nfsidl nfsio 18547 321695 0 0 3 0x14280 nfsidl nfsio 92502 968 0 0 3 0x14280 nfsidl nfsio 15491 303904 0 0 3 0x14280 nfsidl nfsio 20141 482870 0 0 3 0x14200 bored sosplice 88236 128277 0 0 3 0x14200 acct acct 13686 87050 31965 0 3 0x82 thrsleep syz-fuzzer 13686 282004 31965 0 3 0x4000082 nanosleep syz-fuzzer 13686 212683 31965 0 3 0x4000082 thrsleep syz-fuzzer 13686 290239 31965 0 3 0x4000082 thrsleep syz-fuzzer 13686 347184 31965 0 2 0x4000002 syz-fuzzer 13686 70078 31965 0 3 0x4000082 thrsleep syz-fuzzer 13686 384062 31965 0 3 0x4000082 thrsleep syz-fuzzer 13686 257564 31965 0 3 0x4000082 thrsleep syz-fuzzer 31965 378552 81236 0 3 0x10008a pause ksh 81236 388562 97132 0 3 0x92 select sshd 97132 354706 1 0 3 0x80 select sshd 39787 276406 19492 73 3 0x100090 kqread syslogd 19492 120345 1 0 3 0x100082 netio syslogd 7835 291370 1 77 3 0x100090 poll dhclient 4318 158935 1 0 3 0x80 poll dhclient 69349 214343 0 0 3 0x14200 bored smr 41255 132419 0 0 2 0x14200 zerothread 5234 512685 0 0 3 0x14200 aiodoned aiodoned 13856 278255 0 0 3 0x14200 syncer update 65504 152381 0 0 3 0x14200 cleaner cleaner 27761 227346 0 0 3 0x14200 reaper reaper 63410 177358 0 0 3 0x14200 pgdaemon pagedaemon 5916 460228 0 0 3 0x14200 bored crynlk 57761 244037 0 0 3 0x14200 bored crypto 39257 185648 0 0 3 0x40014200 acpi0 acpi0 83813 231190 0 0 3 0x14200 bored softnet 52904 462398 0 0 3 0x14200 bored systqmp 46659 64257 0 0 3 0x14200 bored systq 89849 230083 0 0 3 0x40014200 bored softclock 73805 19806 0 0 3 0x40014200 idle0 1 97203 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 9510 6355K 6851K 78643K 12450 0 pcb 13 8K 8K 78643K 173 0 rtable 160 24K 26K 78643K 982 0 ifaddr 95 19K 19K 78643K 321 0 counters 21 16K 16K 78643K 39 0 ioctlops 0 0K 4K 78643K 480 0 iov 0 0K 16K 78643K 170 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 2264 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 12 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 218 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 1081 0 sigio 0 0K 0K 78643K 14 0 proc 49 38K 55K 78643K 619 0 subproc 32 2K 2K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 101 0 in_multi 90 4K 4K 78643K 372 0 ether_multi 1 0K 0K 78643K 35 0 mrt 0 0K 0K 78643K 5 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 337 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 137K 141K 78643K 3442 0 UVM aobj 37 2K 2K 78643K 40 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 155 0 NDP 13 0K 0K 78643K 69 0 temp 146 3890K 3954K 78643K 42609 0 kqueue 3 4K 14K 78643K 52 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 16 0 10 1 0 1 1 0 8 0 rtpcb 80 93 0 91 1 0 1 1 0 8 0 rtentry 112 171 0 129 2 0 2 2 0 8 0 unpcb 120 487 0 477 1 0 1 1 0 8 0 syncache 264 24 0 24 8 7 1 1 0 8 1 tcpqe 32 258 0 258 5 5 0 1 0 8 0 tcpcb 544 382 0 377 2 1 1 2 0 8 0 ipq 40 8 0 7 4 3 1 1 0 8 0 ipqe 40 102 0 101 4 3 1 1 0 8 0 inpcb 296 1121 0 1113 7 5 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 52 0 48 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 3 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 3 0 3 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 146 0 121 4 1 3 3 0 8 0 pftag 88 30 0 24 2 1 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 5 1 0 1 1 0 8 0 pfstate 328 4 0 2 1 0 1 1 0 8 0 pfrule 1360 64 0 34 4 1 3 3 0 8 0 art_heap8 4096 4 0 2 4 2 2 3 0 8 0 art_heap4 256 603 0 416 19 6 13 14 0 8 0 art_table 32 607 0 418 2 0 2 2 0 8 0 art_node 16 170 0 131 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 206 0 196 1 0 1 1 0 8 0 shmpl 112 37 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2809 0 1412 89 0 89 89 0 8 0 ffsino 240 2809 0 1412 83 0 83 83 0 8 0 nchpl 144 4481 0 2897 60 0 60 60 0 8 0 uvmvnodes 72 3753 0 0 69 0 69 69 0 8 0 vnodes 208 3753 0 0 198 0 198 198 0 8 0 namei 1024 14312 0 14312 5 4 1 1 0 8 1 vcpupl 1984 16 0 0 2 0 2 2 0 8 0 vmpool 528 24 0 8 2 0 2 2 0 8 0 pfiaddrpl 120 62 0 32 3 2 1 2 0 8 0 scxspl 192 31960 0 31960 10 9 1 1 0 8 1 plimitpl 152 82 0 75 1 0 1 1 0 8 0 sigapl 424 1278 0 1228 6 0 6 6 0 8 0 futexpl 56 21284 0 21283 4 3 1 1 0 8 0 knotepl 112 170 0 151 1 0 1 1 0 8 0 kqueuepl 144 150 0 143 1 0 1 1 0 8 0 pipepl 272 225 0 215 3 2 1 2 0 8 0 fdescpl 432 1242 0 1228 2 0 2 2 0 8 0 filepl 120 8207 0 8111 6 2 4 5 0 8 0 lockfpl 104 304 0 302 1 0 1 1 0 8 0 lockfspl 48 114 0 112 1 0 1 1 0 8 0 sessionpl 112 22 0 12 1 0 1 1 0 8 0 pgrppl 48 26 0 16 1 0 1 1 0 8 0 ucredpl 96 707 0 700 1 0 1 1 0 8 0 zombiepl 144 1228 0 1228 3 2 1 1 0 8 1 processpl 928 1278 0 1228 7 0 7 7 0 8 0 procpl 624 2513 0 2454 7 2 5 6 0 8 0 sosppl 128 11 0 11 5 5 0 1 0 8 0 sockpl 400 1714 0 1694 7 4 3 4 0 8 0 mcl64k 65536 126 0 126 11 10 1 1 0 8 1 mcl16k 16384 10 0 10 6 6 0 1 0 8 0 mcl12k 12288 31 0 31 10 9 1 1 0 8 1 mcl9k 9216 15 0 15 7 6 1 1 0 8 1 mcl8k 8192 42 0 42 9 8 1 1 0 8 1 mcl4k 4096 78 0 78 11 10 1 1 0 8 1 mcl2k2 2112 6 0 6 4 4 0 1 0 8 0 mcl2k 2048 79427 0 79373 21 13 8 15 0 8 0 mtagpl 96 93 0 84 4 3 1 1 0 8 0 mbufpl 256 134747 0 134537 56 38 18 32 0 8 0 bufpl 280 7538 0 2186 383 0 383 383 0 8 0 anonpl 16 139560 0 121297 132 57 75 87 0 107 1 amapchunkpl 152 6563 0 6425 49 43 6 20 0 158 0 amappl16 192 6353 0 5341 84 32 52 61 0 8 0 amappl15 184 165 0 162 1 0 1 1 0 8 0 amappl14 176 23 0 19 1 0 1 1 0 8 0 amappl13 168 72 0 67 1 0 1 1 0 8 0 amappl12 160 19 0 17 1 0 1 1 0 8 0 amappl11 152 281 0 272 1 0 1 1 0 8 0 amappl10 144 410 0 404 1 0 1 1 0 8 0 amappl9 136 599 0 597 1 0 1 1 0 8 0 amappl8 128 510 0 462 2 0 2 2 0 8 0 amappl7 120 523 0 509 1 0 1 1 0 8 0 amappl6 112 245 0 239 1 0 1 1 0 8 0 amappl5 104 1154 0 1139 1 0 1 1 0 8 0 amappl4 96 488 0 463 1 0 1 1 0 8 0 amappl3 88 144 0 138 1 0 1 1 0 8 0 amappl2 80 9007 0 8934 2 0 2 2 0 8 0 amappl1 72 30971 0 30551 23 14 9 17 0 8 0 amappl 80 2797 0 2748 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 39 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1266 0 1236 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1266 0 1236 1 0 1 1 0 8 0 vmmpekpl 168 10580 0 10543 2 0 2 2 0 8 0 vmmpepl 168 155261 0 153076 231 125 106 134 0 357 8 vmsppl 272 1265 0 1236 4 2 2 2 0 8 0 pdppl 4096 2538 0 2488 9 2 7 7 0 8 0 pvpl 32 432333 0 411520 379 207 172 308 0 265 4 pmappl 200 1265 0 1236 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 355 0 113 8 0 8 8 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(ffffffff823dbdd0) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff82446b7d,ffffffff8245bbe0,136,ffffffff82417ec3) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd8057ce3378) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd8057ce3378) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd8057ce3378) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd8057ce3378) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd8058d4f0e8,2,ffffffffffffffff,ffff80001d793618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd80676080f8,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff800020857468) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8058d4f0e8,ffff80001d793618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd8058d4f0e8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c4010,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d793618,ffff80001d6c4010,0,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 doktrace(fffffd805806f280,4,100,0,ffff80001d793618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline] doktrace(fffffd805806f280,4,100,0,ffff80001d793618) at doktrace+0x60d sys/kern/kern_ktrace.c:488 sys_ktrace(ffff80001d793618,ffff800020857828,ffff800020857870) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529 syscall(ffff8000208578f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9debd4e8510, 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(ffffffff823dbdd0) at panic+0x15c sys/kern/subr_prf.c:207 __assert(ffffffff82446b7d,ffffffff8245bbe0,136,ffffffff82417ec3) at __assert+0x2b sys/kern/subr_prf.c:154 buf_free_pages(fffffd8057ce3378) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd8057ce3378) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179 buf_put(fffffd8057ce3378) at buf_put+0x16b sys/kern/vfs_bio.c:131 brelse(fffffd8057ce3378) at brelse+0x27d sys/kern/vfs_bio.c:948 vinvalbuf(fffffd8058d4f0e8,2,ffffffffffffffff,ffff80001d793618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981 ffs_truncate(fffffd80676080f8,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff800020857468) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8058d4f0e8,ffff80001d793618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 vrele(fffffd8058d4f0e8) at vrele+0xca sys/kern/vfs_subr.c:816 ktrsettrace(ffff80001d6c4010,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124 ktrops(ffff80001d793618,ffff80001d6c4010,0,80000100,fffffd805806f280,fffffd806c3bf9c0) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544 doktrace(fffffd805806f280,4,100,0,ffff80001d793618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline] doktrace(fffffd805806f280,4,100,0,ffff80001d793618) at doktrace+0x60d sys/kern/kern_ktrace.c:488 sys_ktrace(ffff80001d793618,ffff800020857828,ffff800020857870) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529 syscall(ffff8000208578f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9debd4e8510, count: -18