uvm_fault(0xfffffd806b9e4d70, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 424354 93753 0 0 0 0 syz-executor *499790 16701 0 0 0x4000000 1K syz-executor ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000340087e8,ffff80003500f480,ffff80003500f3d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003500f480) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003500f480) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d2e39714a0, count: 10 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806b9e4d70, 0xf, 0, 1) -> e ddb{1}> trace ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000340087e8,ffff80003500f480,ffff80003500f3d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003500f480) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003500f480) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d2e39714a0, count: -5 ddb{1}> show registers rdi 0xffff80002abf6000 rsi 0x68c0 __ALIGN_SIZE+0x58c0 rbp 0xffff80003500f190 rbx 0xfffffd80097fb000 rdx 0xffff80002abf6000 rcx 0x68bf __ALIGN_SIZE+0x58bf rax 0xffffffff8231f463 ktrops+0x43 r8 0xfffffd80607b1950 r9 0xfffffd80097fb000 r10 0x6396dfb6ec5eece2 r11 0xe11c8c6d2de76ae5 r12 0xffff8000340087e8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff8231f478 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003500f110 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=499790 pid=16701 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800034009a10,0xffff800034008a90 process=0xffff80003b427510 user=0xffff80003500a000, vmspace=0xfffffd806b9e4d70 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93753 424354 49095 0 7 0 syz-executor 93753 396974 49095 0 2 0x4000000 syz-executor 59147 28625 45628 0 2 0 syz-executor 59147 515533 45628 0 3 0x4000080 fsleep syz-executor 79147 63021 18481 0 2 0 syz-executor 79147 316817 18481 0 3 0x4000080 ttyout syz-executor 16701 211704 74255 0 2 0 syz-executor *16701 499790 74255 0 7 0x4000000 syz-executor 45035 380899 0 0 3 0x14200 bored sosplice 14753 218161 76120 0 2 0 syz-executor 14753 215785 76120 0 3 0x4000080 lockf syz-executor 52206 347158 31462 0 3 0x2 biowait syz-executor 76120 370567 31462 0 3 0x82 nanoslp syz-executor 74483 393134 31462 0 2 0x2 syz-executor 49095 148511 31462 0 3 0x82 nanoslp syz-executor 45628 250386 31462 0 3 0x82 nanoslp syz-executor 36743 300809 31462 0 2 0x2 syz-executor 74255 454230 31462 0 3 0x82 nanoslp syz-executor 18481 79994 31462 0 3 0x82 nanoslp syz-executor 31462 227146 45941 0 2 0x2 syz-executor 45941 384060 80474 0 3 0x10008a sigsusp ksh 80474 394652 28270 0 3 0x98 kqread sshd-session 28270 23801 96015 0 3 0x92 kqread sshd-session 50689 358229 1 0 3 0x100083 ttyin getty 96015 416858 1 0 3 0x88 kqread sshd 64140 447743 24896 74 3 0x1100092 bpf pflogd 24896 35893 1 0 3 0x80 sbwait pflogd 97732 228755 11503 73 3 0x1100090 kqread syslogd 11503 425404 1 0 3 0x100082 sbwait syslogd 44584 15131 1 0 3 0x100080 kqread resolvd 83775 9385 42122 77 3 0x100092 kqread dhcpleased 62898 324905 42122 77 3 0x100092 kqread dhcpleased 42122 224320 1 0 3 0x80 kqread dhcpleased 79579 388257 0 0 3 0x14200 pause smr 44849 10519 0 0 2 0x14200 zerothread 24561 472114 0 0 3 0x14200 aiodoned aiodoned 21648 369713 0 0 3 0x14200 syncer update 31093 34312 0 0 3 0x14200 cleaner cleaner 57825 221556 0 0 3 0x14200 reaper reaper 52557 298008 0 0 3 0x14200 pgdaemon pagedaemon 94872 182895 0 0 3 0x14200 bored viomb 57358 21440 0 0 3 0x40014200 acpi0 acpi0 89334 353317 0 0 3 0x40014200 idle1 97919 418584 0 0 3 0x14200 bored softnet7 28289 332505 0 0 3 0x14200 bored softnet6 7737 494866 0 0 3 0x14200 bored softnet5 57324 89976 0 0 3 0x14200 bored softnet4 43681 149852 0 0 3 0x14200 bored softnet3 91179 49548 0 0 3 0x14200 bored softnet2 15312 161167 0 0 3 0x14200 bored softnet1 42668 145158 0 0 3 0x14200 bored softnet0 47069 297148 0 0 3 0x14200 bored systqmp 49229 474412 0 0 3 0x14200 bored systq 49040 132722 0 0 3 0x14200 tmoslp softclockmp 24576 95878 0 0 3 0x40014200 tmoslp softclock 90855 378177 0 0 3 0x40014200 idle0 1 39537 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 16701 (syz-executor) thread 0xffff8000340087e8 (499790) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83959e10) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #3 biowait+0xc6 sys/kern/vfs_bio.c:1242 #4 bwrite+0x2e7 sys/kern/vfs_bio.c:754 #5 ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 #6 ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1 #7 ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 #8 VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 #9 vrele+0x129 sys/kern/vfs_subr.c:844 #10 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x26c sys/kern/kern_ktrace.c:573 #12 doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] #12 doktrace+0x6bd sys/kern/kern_ktrace.c:517 #13 sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 #14 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #15 Xsyscall+0x128 Process 52206 (syz-executor) thread 0xffff8000ffff2fa0 (347158) exclusive rrwlock inode r = 0 (0xfffffd80694227d0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bcdf328) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 11162K 11557K 166960K 11546 0 pcb 17 12K 12K 166960K 25 0 rtable 177 6K 6K 166960K 266 0 pf 30 16K 81K 166960K 58 0 ifaddr 35 6K 7K 166960K 51 0 ifgroup 47 2K 2K 166960K 63 0 sysctl 1 1K 9K 166960K 5 0 counters 64 36K 37K 166960K 82 0 ioctlops 0 0K 4K 166960K 1498 0 iov 0 0K 16K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1344 85K 85K 166960K 1463 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 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 249 0 sigio 0 0K 0K 166960K 4 0 proc 76 131K 196K 166960K 538 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 18 0 in_multi 77 5K 7K 166960K 102 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 370 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 231 175K 186K 166960K 3867 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 41 82K 102K 166960K 1337 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 12 0 NDP 10 0K 2K 166960K 32 0 temp 37 8638K 8706K 166960K 10883 0 kqueue 13 20K 26K 166960K 32 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 41 0 38 1 0 1 1 0 8 0 rtentry 176 98 0 20 5 0 5 5 0 8 0 unpcb 144 68 0 51 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 36 0 30 2 0 2 2 0 8 1 arp 128 12 0 2 1 0 1 1 0 8 0 inpcb 328 141 0 131 2 0 2 2 0 8 0 nd6 144 17 0 5 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 7 0 7 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 21 0 0 1 0 1 1 0 8 0 pfstkey 128 21 0 0 1 0 1 1 0 8 0 pfstate 384 21 0 0 3 0 3 3 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 440 0 86 28 0 28 28 0 8 4 art_table 40 441 0 86 5 0 5 5 0 8 0 art_node 32 98 0 28 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 2 0 0 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1732 0 223 96 0 96 96 0 8 0 ffsino 296 1732 0 223 117 0 117 117 0 8 0 nchpl 144 2200 0 510 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 1898 0 0 39 0 39 39 0 8 0 vnodes 216 1898 0 0 106 0 106 106 0 8 0 namei 1024 6524 0 6523 2 0 2 2 0 8 1 percpumem 16 56 0 9 1 0 1 1 0 8 0 kstatmem 264 34 0 12 3 0 3 3 0 8 1 scxspl 216 7153 0 7152 3 2 1 2 1 8 0 plimitpl 152 42 0 24 1 0 1 1 0 8 0 sigapl 424 554 0 501 7 0 7 7 0 8 0 knotepl 120 339 0 0 11 0 11 11 0 8 0 kqueuepl 224 39 0 30 1 0 1 1 0 8 0 pipepl 344 183 0 155 9 0 9 9 0 8 6 fdescpl 528 531 0 501 3 0 3 3 0 8 0 filepl 160 2145 0 1919 16 0 16 16 0 8 5 lockfpl 104 109 0 103 1 0 1 1 0 8 0 lockfspl 48 53 0 48 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 216 0 203 1 0 1 1 0 8 0 zombiepl 144 502 0 501 1 0 1 1 0 8 0 processpl 1232 554 0 501 5 0 5 5 0 8 0 procpl 664 709 0 651 6 0 6 6 0 8 0 sockpl 752 255 0 225 5 0 5 5 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 128 0 0 8 0 8 8 0 8 0 bufpl 280 3093 0 122 213 0 213 213 0 8 0 anonpl 32 7401 0 0 60 0 60 60 0 246 0 amapchunkpl 152 11640 0 11180 33 3 30 30 0 158 11 amappl16 200 2041 0 2020 5 1 4 5 0 8 2 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 116 0 104 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 1171 0 1141 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 40 0 38 1 0 1 1 0 8 0 amappl7 128 106 0 94 1 0 1 1 0 8 0 amappl6 120 181 0 178 1 0 1 1 0 8 0 amappl5 112 119 0 110 1 0 1 1 0 8 0 amappl4 104 303 0 284 1 0 1 1 0 8 0 amappl3 96 1971 0 1866 5 1 4 4 0 8 1 amappl2 88 639 0 579 2 0 2 2 0 8 0 amappl1 80 8985 0 8388 16 1 15 15 0 8 0 amappl 88 3188 0 3032 6 1 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 531 0 501 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 531 0 501 1 0 1 1 0 8 0 vmmpekpl 168 6241 0 6207 2 0 2 2 0 8 0 vmmpepl 168 40182 0 38282 94 0 94 94 0 357 3 vmsppl 488 530 0 501 5 0 5 5 0 8 0 rwobjpl 80 15670 0 12857 59 0 59 59 0 8 0 pdppl 4096 1070 0 1002 100 26 74 86 0 8 6 pvpl 32 15642 0 0 127 0 127 127 0 265 0 pmappl 256 530 0 501 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 268 0 28 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83810ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83959c08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83959c08) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003b421cc0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x72182df116f0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83810ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83959c08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83959c08) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003b421cc0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x72182df116f0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000340087e8,ffff80003500f480,ffff80003500f3d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003500f480) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003500f480) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d2e39714a0, count: 10 ddb{1}> trace ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000340087e8,ffffffffffffffff,0,a0c7df9f,fffffd80607b1950,fffffd80097fb000) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80607b1950,4,20c7df9f,0,ffff8000340087e8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000340087e8,ffff80003500f480,ffff80003500f3d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003500f480) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003500f480) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d2e39714a0, count: -5