uvm_fault(0xffffffff83aee2uvm_fault(0xffffffff83aee2d0, 0xffff800029ee6000, 0, 2) -> e kernel: page fault trap, code=2 Stopped at kcov_remote_enter+0x122: movq $0,0(%rcx) TID PID UID PRFLAGS PFLAGS CPU COMMAND *224509 35156 0 0 0x4000001 0 syz-executor kcov_remote_enter(0,ffff80002a79fa90) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff83925170,ffff80002a737d28) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a737d28,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756 softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788 softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87 dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 cnputc(32) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(32) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83428dc4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e5ea0) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a7c7520,ffff800029e922f4) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a7c7520) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 end trace frame: 0xffff80002a7c75a0, 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 *cpu0: uvm_fault(0xffffffff83aee2d0, 0xffff800029ee6000, 0, 2) -> e ddb> trace kcov_remote_enter(0,ffff80002a79fa90) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff83925170,ffff80002a737d28) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a737d28,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756 softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788 softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87 dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 cnputc(32) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(32) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83428dc4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e5ea0) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a7c7520,ffff800029e922f4) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a7c7520) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b memset() at memset+0x49 ffs_write(ffff80002a7c78c0) at ffs_write+0xb9a sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd8073e9ac18,ffff80002a7c7970,3,fffffd8007ffd410) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80003a4d6fb8,fffffd8073e9ac18,fffffd8007ffd410,ffff80002a7c7a40,ffff80002a7c7a20) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692 ktrsysret(ffff80003a4d6fb8,36,0,ffff80002a7c7b00) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff80003a4d6fb8,36,0,ffff80002a7c7b00) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209 syscall(ffff80002a7c7bb0) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a7c7bb0) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa969ba7d040, count: -22 ddb> show registers rdi 0 rsi 0xffff800000c17f00 rbp 0xffff80002a7c6fb0 rbx 0xffff80002a79fa90 rdx 0xffff80003a4d6fb8 rcx 0xffff800029ee6000 rax 0xfffffd806cac2c60 r8 0x101010101010101 r9 0x8080808080808080 r10 0xda181abeb402cd35 r11 0x22d2ff628349abe7 r12 0xffffffff827788e0 endtsleep r13 0xffff80002a737c90 r14 0xffff80002a79fa90 r15 0 rip 0xffffffff81e6ef22 kcov_remote_enter+0x122 cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a7c6f90 ss 0x10 kcov_remote_enter+0x122: movq $0,0(%rcx) ddb> show proc PROC (syz-executor) tid=224509 pid=35156 tcnt=2 stat=onproc flags process=0 proc=4000001 runpri=32, usrpri=70, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003a4d74e8,0xffff80003a4d6800 process=0xffff8000318c1b18 user=0xffff80002a7c2000, vmspace=0xfffffd806d1cb468 estcpu=20, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 90041 494220 67064 0 3 0x2 clonelk ifconfig 67064 485540 14156 0 3 0x10008a sigsusp sh 35156 293046 85251 0 2 0 syz-executor *35156 224509 85251 0 7 0x4000001 syz-executor 14156 279486 83233 0 3 0x82 wait syz-executor 2976 299229 43217 0 3 0x80 fsleep syz-executor 2976 263260 43217 0 3 0x4000080 msgwait syz-executor 2976 136258 43217 0 3 0x4000080 fsleep syz-executor 6136 20362 85205 -1 3 0x90 fsleep syz-executor 6136 423240 85205 -1 3 0x4000090 kqread syz-executor 79942 295900 0 0 3 0x14200 acct acct 43217 362066 83233 0 3 0x82 nanoslp syz-executor 88731 493750 83233 0 2 0x2 syz-executor 16364 203510 83233 0 3 0x82 piperd syz-executor 85251 431326 83233 0 3 0x82 nanoslp syz-executor 92956 171818 83233 0 3 0x82 piperd syz-executor 85205 160207 83233 0 3 0x82 nanoslp syz-executor 83233 516185 40176 0 3 0x82 wait syz-executor 40176 54162 28651 0 3 0x10008a sigsusp ksh 28651 27130 42765 0 3 0x98 kqread sshd-session 42765 362992 87360 0 3 0x92 kqread sshd-session 69261 339337 1 0 3 0x100083 ttyin getty 87360 312356 1 0 3 0x88 kqread sshd 37310 444214 26329 73 3 0x1100090 kqread syslogd 26329 210643 1 0 3 0x100082 sbwait syslogd 93667 415716 1 0 3 0x100080 kqread resolvd 82451 116838 91067 77 3 0x100092 kqread dhcpleased 61054 6710 91067 77 3 0x100092 kqread dhcpleased 91067 521883 1 0 3 0x80 kqread dhcpleased 94111 83826 0 0 3 0x14200 bored smr 38662 509609 0 0 2 0x14200 zerothread 66194 414041 0 0 3 0x14200 aiodoned aiodoned 82407 393658 0 0 3 0x14200 syncer update 90699 19731 0 0 3 0x14200 cleaner cleaner 19497 287124 0 0 3 0x14200 reaper reaper 55350 353626 0 0 3 0x14200 pgdaemon pagedaemon 68457 314655 0 0 3 0x14200 bored viomb 64080 224088 0 0 3 0x40014200 acpi0 acpi0 6020 380419 0 0 3 0x14200 bored softnet0 79428 50817 0 0 3 0x14200 bored systqmp 64434 367361 0 0 3 0x14200 bored systq 84530 303173 0 0 3 0x40014200 tmoslp softclock 63786 87124 0 0 3 0x40014200 idle0 1 14586 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 11071 12304K 12438K 166960K 13145 0 pcb 17 13K 14K 166960K 170 0 rtable 234 8K 11K 166960K 1370 0 pf 32 13K 20K 166960K 322 0 ifaddr 38 7K 8K 166960K 186 0 ifgroup 46 2K 2K 166960K 212 0 sysctl 3 1K 9K 166960K 11 0 counters 32 17K 18K 166960K 79 0 ioctlops 0 0K 4K 166960K 487 0 iov 0 0K 24K 166960K 43 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1417 89K 89K 166960K 2522 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 20K 28K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 19 3K 3K 166960K 31 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 15 53K 224K 166960K 1325 0 sigio 0 0K 0K 166960K 7 0 proc 67 67K 83K 166960K 1433 0 subproc 72 4K 4K 166960K 361 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 97 0 in_multi 88 6K 7K 166960K 463 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 28 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 1103 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 189 143K 160K 166960K 11131 0 UVM aobj 23 8K 8K 166960K 25 0 pinsyscall 36 72K 95K 166960K 3202 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 22 0 NDP 10 0K 2K 166960K 134 0 temp 69 9114K 13203K 166960K 42593 0 kqueue 19 27K 32K 166960K 157 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 171 0 168 2 0 2 2 0 8 1 rtentry 136 464 0 364 4 0 4 4 0 8 0 unpcb 144 492 0 477 4 0 4 4 0 8 3 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpcb 736 389 0 384 7 0 7 7 0 8 6 arp 96 81 0 65 1 0 1 1 0 8 0 ipq 40 6 0 5 1 0 1 1 0 8 0 ipqe 40 10 0 8 1 0 1 1 0 8 0 inpcb 328 927 0 918 7 0 7 7 0 8 6 ip6q 72 3 0 0 1 0 1 1 0 8 0 ip6af 40 4 0 0 1 0 1 1 0 8 0 nd6 112 121 0 99 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 40 0 32 1 0 1 1 0 8 0 ppxss 1072 11 0 11 1 0 1 1 0 8 1 pfstscr 40 13 0 5 1 0 1 1 0 8 0 pfrktable 1344 11 0 11 1 0 1 1 0 8 1 pfsrclim 320 2 0 2 1 0 1 1 0 8 1 pfanchor 1288 6 0 2 1 0 1 1 0 8 0 pftag 88 7 0 4 1 0 1 1 0 8 0 pfstitem 24 13 0 2 1 0 1 1 0 8 0 pfstkey 128 16 0 5 1 0 1 1 0 8 0 pfstate 384 9 0 3 1 0 1 1 0 8 0 pfrule 1360 12 0 12 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1893 0 1468 31 1 30 30 0 8 0 art_table 40 1895 0 1468 5 0 5 5 0 8 0 art_node 32 462 0 372 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 13 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 26 0 9 1 0 1 1 0 8 0 shmpl 112 22 0 2 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2991 0 1473 95 0 95 95 0 8 0 ffsino 256 2991 0 1473 95 0 95 95 0 8 0 nchpl 144 4165 0 2379 67 0 67 67 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 3926 0 0 219 0 219 219 0 8 0 namei 1024 16175 0 16174 2 0 2 2 0 8 1 pfiaddrpl 120 2 0 2 1 0 1 1 0 8 1 kstatmem 264 111 0 90 2 0 2 2 0 8 0 scsiplug 72 7 0 7 1 0 1 1 0 8 1 scxspl 216 16026 0 16026 8 0 8 8 1 8 8 plimitpl 152 289 0 273 1 0 1 1 0 8 0 sigapl 424 1538 0 1497 6 0 6 6 0 8 0 knotepl 120 26900 0 26847 23 13 10 23 0 8 6 kqueuepl 184 327 0 313 4 0 4 4 0 8 3 pipepl 304 268 0 241 3 0 3 3 0 8 0 fdescpl 448 1524 0 1497 5 0 5 5 0 8 1 filepl 120 7301 0 7090 11 0 11 11 0 8 3 lockfpl 104 533 0 531 2 0 2 2 0 8 1 lockfspl 48 249 0 247 1 0 1 1 0 8 0 sessionpl 144 88 0 80 1 0 1 1 0 8 0 pgrppl 48 143 0 127 1 0 1 1 0 8 0 ucredpl 104 1139 0 1127 1 0 1 1 0 8 0 zombiepl 144 1498 0 1497 1 0 1 1 0 8 0 processpl 1152 1538 0 1497 4 0 4 4 0 8 0 procpl 664 2566 0 2521 6 0 6 6 0 8 1 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 552 1623 0 1596 8 0 8 8 0 8 5 mcl64k 65536 61 0 59 1 0 1 1 0 8 0 mcl16k 16384 8 0 8 1 0 1 1 0 8 1 mcl12k 12288 4 0 4 1 0 1 1 0 8 1 mcl9k128 9344 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 20 0 20 1 0 1 1 0 8 1 mcl4k 4096 3563 0 3506 14 0 14 14 0 8 6 mcl2k 2048 1222 0 1212 3 0 3 3 0 8 1 mtagpl 96 8 0 5 1 0 1 1 0 8 0 mbufpl 256 14135 0 13947 19 0 19 19 0 8 5 bufpl 280 6526 0 310 445 0 445 445 0 8 0 anonpl 24 209469 0 206441 46 0 46 46 0 186 19 amapchunkpl 152 36166 0 35807 31 0 31 31 0 158 11 amappl16 200 3509 0 3484 22 11 11 15 0 8 8 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 776 0 774 1 0 1 1 0 8 0 amappl13 176 175 0 165 1 0 1 1 0 8 0 amappl12 168 1890 0 1865 2 0 2 2 0 8 0 amappl11 160 7 0 7 1 0 1 1 0 8 1 amappl10 152 59 0 48 1 0 1 1 0 8 0 amappl9 144 269 0 269 1 0 1 1 0 8 1 amappl8 136 223 0 220 1 0 1 1 0 8 0 amappl7 128 196 0 185 1 0 1 1 0 8 0 amappl6 120 478 0 473 1 0 1 1 0 8 0 amappl5 112 93 0 84 1 0 1 1 0 8 0 amappl4 104 350 0 333 1 0 1 1 0 8 0 amappl3 96 7200 0 7116 4 0 4 4 0 8 1 amappl2 88 789 0 731 2 0 2 2 0 8 0 amappl1 80 16931 0 16398 13 0 13 13 0 8 0 amappl 88 9802 0 9676 5 0 5 5 0 92 1 uvmvnodes 80 121 0 0 3 0 3 3 0 8 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma2048 2048 2 0 2 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 1 0 1 1 0 8 1 dma128 128 255 0 255 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 8 0 8 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 24 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1524 0 1497 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1524 0 1497 1 0 1 1 0 8 0 vmmpekpl 168 12335 0 12296 3 0 3 3 0 8 0 vmmpepl 168 102515 0 100923 88 0 88 88 0 357 11 vmsppl 368 1523 0 1497 4 0 4 4 0 8 1 rwobjpl 40 29170 0 28210 13 0 13 13 0 8 1 pdppl 4096 3054 0 2994 156 92 64 80 0 8 4 pvpl 32 616238 0 607874 109 0 109 109 0 265 24 pmappl 216 1523 0 1497 3 0 3 3 0 8 1 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 446 0 93 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace kcov_remote_enter(0,ffff80002a79fa90) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff83925170,ffff80002a737d28) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a737d28,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756 softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788 softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87 dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 cnputc(32) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(32) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83428dc4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e5ea0) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a7c7520,ffff800029e922f4) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a7c7520) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b memset() at memset+0x49 ffs_write(ffff80002a7c78c0) at ffs_write+0xb9a sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd8073e9ac18,ffff80002a7c7970,3,fffffd8007ffd410) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80003a4d6fb8,fffffd8073e9ac18,fffffd8007ffd410,ffff80002a7c7a40,ffff80002a7c7a20) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692 ktrsysret(ffff80003a4d6fb8,36,0,ffff80002a7c7b00) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff80003a4d6fb8,36,0,ffff80002a7c7b00) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209 syscall(ffff80002a7c7bb0) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a7c7bb0) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa969ba7d040, count: -22 ddb> machine ddbcpu 1 No such command ddb> trace kcov_remote_enter(0,ffff80002a79fa90) at kcov_remote_enter+0x122 sys/dev/kcov.c:670 timeout_run(ffffffff83925170,ffff80002a737d28) at timeout_run+0xdf sys/kern/kern_timeout.c:696 softclock_process_tick_timeout(ffff80002a737d28,0) at softclock_process_tick_timeout+0x230 sys/kern/kern_timeout.c:756 softclock(0) at softclock+0x152 sys/kern/kern_timeout.c:788 softintr_dispatch(0) at softintr_dispatch+0xf9 sys/kern/kern_softintr.c:87 dosoftint(0) at dosoftint+0x48 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 cnputc(32) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(32) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83428dc4) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff834e5ea0) at fault+0xa3 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff80002a7c7520,ffff800029e922f4) at kpageflttrap+0x353 sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff80002a7c7520) at kerntrap+0x18a sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b memset() at memset+0x49 ffs_write(ffff80002a7c78c0) at ffs_write+0xb9a sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd8073e9ac18,ffff80002a7c7970,3,fffffd8007ffd410) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80003a4d6fb8,fffffd8073e9ac18,fffffd8007ffd410,ffff80002a7c7a40,ffff80002a7c7a20) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692 ktrsysret(ffff80003a4d6fb8,36,0,ffff80002a7c7b00) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff80003a4d6fb8,36,0,ffff80002a7c7b00) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209 syscall(ffff80002a7c7bb0) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a7c7bb0) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa969ba7d040, count: -22