kernel: protection fault trap, code=0 Stopped at done_flush+0x38: movl %eax,%dr6 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff8000329e3980) at vm_run+0x169 vmmioctl(a00,c0205602,ffff8000329e3980,1,ffff80002a21bd68) at vmmioctl+0x2a1 sys/dev/vmm/vmm.c:242 VOP_IOCTL(fffffd807e6ec0e0,c0205602,ffff8000329e3980,1,fffffd807f7d7410,ffff80002a21bd68) at VOP_IOCTL+0x97 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806b9d9a30,c0205602,ffff8000329e3980,ffff80002a21bd68) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a21bd68,ffff8000329e3b60,ffff8000329e3ab0) at sys_ioctl+0x4a2 syscall(ffff8000329e3b60) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000329e3b60) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x68fd4438b20, count: -8 ddb{0}> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff8000373aa650 rbp 0xffff8000329e36d0 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0x200000000 r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0xa540aa1bdda6a333 r11 0xf430ed3dba22291 r12 0xffffffff82d2fff0 cpu_info_full_primary+0x1ff0 r13 0xffffffff82d2fff0 cpu_info_full_primary+0x1ff0 r14 0xffff8000373aa000 r15 0x246 rip 0xffffffff817e856b done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff8000329e3536 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb{0}> show proc PROC (syz-executor.4) tid=458477 pid=37692 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a19e7f8,0xffffffff82e3bb68 process=0xffff8000373b1ac8 user=0xffff8000329de000, vmspace=0xfffffd807d0f2e30 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37692 309521 98011 0 7 0 syz-executor.4 *37692 458477 98011 0 7 0x4000000 syz-executor.4 87722 273887 34657 0 2 0 syz-executor.1 87722 2027 34657 0 3 0x4000080 netcon syz-executor.1 81729 381555 6321 0 3 0x80 nanoslp syz-executor.7 81729 441789 6321 0 3 0x4000080 fsleep syz-executor.7 72875 200409 57177 0 2 0x480 syz-executor.6 72875 176494 57177 0 3 0x4000080 fsleep syz-executor.6 72875 430553 57177 0 3 0x4000080 ttyout syz-executor.6 72875 410154 57177 0 3 0x4000080 fsleep syz-executor.6 70534 248105 18612 0 3 0x80 nanoslp syz-executor.2 70534 517755 18612 0 3 0x4000080 lockf syz-executor.2 70534 242149 18612 0 3 0x4000080 fsleep syz-executor.2 70534 264814 18612 0 3 0x4000080 fsleep syz-executor.2 57177 304023 94253 0 3 0x82 nanoslp syz-executor.6 6321 316288 94253 0 3 0x82 nanoslp syz-executor.7 56301 487962 94253 0 3 0x2 biowait syz-executor.0 98011 117607 94253 0 2 0x482 syz-executor.4 57761 125506 1 0 3 0x100083 ttyin getty 58296 271302 94253 0 2 0x2 syz-executor.5 18612 282187 94253 0 3 0x82 nanoslp syz-executor.2 77357 496755 94253 0 2 0x482 syz-executor.3 29895 355580 0 0 3 0x14200 bored sosplice 60540 376578 0 0 3 0x14280 nfsidl nfsio 30053 44933 0 0 3 0x14280 nfsidl nfsio 48407 416275 0 0 3 0x14280 nfsidl nfsio 62225 440533 0 0 3 0x14280 nfsidl nfsio 601 55368 0 0 3 0x14280 nfsidl nfsio 11452 336890 0 0 3 0x14280 nfsidl nfsio 44124 524011 0 0 3 0x14280 nfsidl nfsio 16126 370453 0 0 3 0x14280 nfsidl nfsio 82274 410650 0 0 3 0x14280 nfsidl nfsio 11214 402297 0 0 3 0x14280 nfsidl nfsio 57364 196642 0 0 3 0x14280 nfsidl nfsio 71126 373542 0 0 3 0x14280 nfsidl nfsio 76587 174713 0 0 3 0x14280 nfsidl nfsio 5404 234705 0 0 3 0x14280 nfsidl nfsio 79211 488808 0 0 3 0x14280 nfsidl nfsio 28594 30475 0 0 3 0x14280 nfsidl nfsio 48974 454743 0 0 3 0x14280 nfsidl nfsio 14798 340439 0 0 3 0x14280 nfsidl nfsio 18450 278286 0 0 3 0x14280 nfsidl nfsio 54938 133946 0 0 3 0x14280 nfsidl nfsio 34657 448027 94253 0 3 0x82 nanoslp syz-executor.1 94253 430622 12957 0 3 0x2000082 wait syz-fuzzer 94253 250877 12957 0 3 0x6000082 nanoslp syz-fuzzer 94253 275496 12957 0 3 0x6000082 wait syz-fuzzer 94253 66073 12957 0 3 0x6000082 thrsleep syz-fuzzer 94253 300607 12957 0 3 0x6000082 wait syz-fuzzer 94253 424863 12957 0 3 0x6000082 wait syz-fuzzer 94253 503817 12957 0 3 0x6000082 thrsleep syz-fuzzer 94253 490504 12957 0 3 0x6000082 wait syz-fuzzer 94253 104199 12957 0 3 0x6000082 thrsleep syz-fuzzer 94253 186061 12957 0 3 0x6000082 thrsleep syz-fuzzer 94253 83478 12957 0 3 0x6000082 thrsleep syz-fuzzer 94253 152421 12957 0 3 0x6000082 thrsleep syz-fuzzer 94253 242534 12957 0 3 0x6000082 wait syz-fuzzer 94253 60424 12957 0 2 0x6000082 syz-fuzzer 94253 17909 12957 0 3 0x6000082 wait syz-fuzzer 94253 355747 12957 0 3 0x6000082 wait syz-fuzzer 12957 208582 81045 0 3 0x10008a sigsusp ksh 81045 41070 19223 0 3 0x9a kqread sshd 19223 387478 1 0 3 0x88 kqread sshd 66593 127109 71688 74 3 0x1100092 bpf pflogd 71688 219523 1 0 3 0x80 netio pflogd 83404 280746 82333 73 3 0x1100090 kqread syslogd 82333 248744 1 0 3 0x100082 netio syslogd 59042 155184 1 0 3 0x100080 kqread resolvd 73106 169284 10215 77 3 0x100092 kqread dhcpleased 78780 438067 10215 77 3 0x100092 kqread dhcpleased 10215 434899 1 0 3 0x80 kqread dhcpleased 60960 92682 0 0 3 0x14200 bored smr 80319 45928 0 0 2 0x14200 zerothread 6488 503446 0 0 3 0x14200 aiodoned aiodoned 79986 179930 0 0 3 0x14200 syncer update 35741 50367 0 0 3 0x14200 cleaner cleaner 96030 350246 0 0 3 0x14200 reaper reaper 78099 438541 0 0 3 0x14200 pgdaemon pagedaemon 76566 31880 0 0 3 0x14200 bored viomb 12631 408676 0 0 3 0x40014200 acpi0 acpi0 3323 479332 0 0 3 0x40014200 idle1 81846 174671 0 0 3 0x14200 bored softnet3 96365 98536 0 0 3 0x14200 bored softnet2 90438 233734 0 0 3 0x14200 bored softnet1 24107 25353 0 0 3 0x14200 bored softnet0 71855 18516 0 0 3 0x14200 bored systqmp 6096 433543 0 0 3 0x14200 bored systq 10275 428994 0 0 3 0x14200 tmoslp softclockmp 78061 346765 0 0 3 0x40014200 tmoslp softclock 72175 8373 0 0 3 0x40014200 idle0 1 460647 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 37692 (syz-executor.4) thread 0xffff80002a21bd68 (458477) exclusive rwlock vcpu r = 0 (0xffff8000373aa3b8) #0 witness_lock+0x447 #1 vm_run+0x77 sys/arch/amd64/amd64/vmm_machdep.c:3667 #2 vmmioctl+0x2a1 sys/dev/vmm/vmm.c:242 #3 VOP_IOCTL+0x97 sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 #5 sys_ioctl+0x4a2 #6 syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] #6 syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 56301 (syz-executor.0) thread 0xffff80002a240298 (487962) exclusive rrwlock inode r = 0 (0xfffffd80668da2c8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c8203c8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 58296 (syz-executor.5) thread 0xffff80002a23fff0 (271302) exclusive rrwlock inode r = 0 (0xfffffd80668dae78) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80697cdb38) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10191 6482K 7147K 166960K 19841 0 pcb 15 18K 20K 166960K 488 0 rtable 237 7K 7K 166960K 2402 0 pf 32 9K 10K 166960K 146 0 ifaddr 45 15K 16K 166960K 179 0 ifgroup 55 2K 2K 166960K 230 0 sysctl 4 1K 1K 166960K 7 0 counters 64 36K 36K 166960K 158 0 ioctlops 0 0K 4K 166960K 1679 0 iov 0 0K 24K 166960K 425 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1524 95K 95K 166960K 4736 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 109 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 644 0 dirhash 12 2K 2K 166960K 60 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 15 53K 81K 166960K 7461 0 sigio 0 0K 0K 166960K 90 0 proc 70 91K 115K 166960K 1537 0 subproc 104 6K 7K 166960K 468 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 345 0 in_multi 99 7K 7K 166960K 479 0 ether_multi 1 0K 0K 166960K 5 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 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 1490 0 pfkey data 0 0K 0K 166960K 20 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 418 284K 286K 166960K 74268 0 UVM aobj 131 4K 4K 166960K 134 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 211 0 NDP 12 0K 2K 166960K 129 0 temp 77 6708K 6836K 166960K 65801 0 kqueue 12 18K 26K 166960K 441 0 SYN cache 2 56K 64K 166960K 4 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 120 734 0 731 6 5 1 3 0 8 0 rtentry 112 482 0 372 4 0 4 4 0 8 0 unpcb 144 6022 0 6007 66 64 2 10 0 8 1 syncache 320 63 0 63 14 14 0 1 0 8 0 tcpqe 32 227 0 227 14 14 0 1 0 8 0 tcpcb 808 1787 0 1761 62 52 10 10 0 8 7 arp 120 73 0 55 1 0 1 1 0 8 0 inpcb 376 4585 0 4555 124 114 10 16 0 8 6 nd6 136 106 0 82 1 0 1 1 0 8 0 pkpcb 40 106 0 106 11 10 1 1 0 8 1 kcovpl 48 36 0 28 1 0 1 1 0 8 0 ppxss 1168 11 0 11 3 3 0 1 0 8 0 pffrag 232 14 0 13 3 2 1 1 0 482 0 pffrnode 88 14 0 13 3 2 1 1 0 8 0 pffrent 40 104 0 103 3 2 1 1 0 8 0 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 24 216 0 204 1 0 1 1 0 8 0 pfstkey 128 216 0 204 3 1 2 2 0 8 0 pfstate 376 216 0 204 7 3 4 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1659 0 1200 40 11 29 29 0 8 0 art_table 32 1660 0 1200 4 0 4 4 0 8 0 art_node 16 411 0 311 1 0 1 1 0 8 0 sysvmsgpl 40 48 0 39 1 0 1 1 0 8 0 semapl 112 642 0 632 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 49 0 32 3 0 3 3 0 8 0 dino2pl 256 10597 0 9127 92 0 92 92 0 8 0 ffsino 272 10597 0 9127 99 0 99 99 0 8 0 nchpl 144 20138 0 18482 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 63874 0 63872 7 6 1 3 0 8 0 percpumem 16 93 0 47 1 0 1 1 0 8 0 vcpupl 2048 99 0 2 13 0 13 13 0 8 0 vmpool 696 112 0 15 10 1 9 9 0 8 0 kstatmem 264 118 0 94 2 0 2 2 0 8 0 scxspl 216 70921 0 70920 26 25 1 8 1 8 0 plimitpl 152 500 0 483 1 0 1 1 0 8 0 sigapl 424 7750 0 7682 9 0 9 9 0 8 0 futexpl 64 62552 0 62547 4 3 1 1 0 8 0 knotepl 120 660 0 0 11 0 11 11 0 8 0 kqueuepl 216 1163 0 1155 27 24 3 5 0 8 2 pipepl 320 1161 0 1133 29 26 3 8 0 8 0 fdescpl 496 7711 0 7683 7 3 4 5 0 8 0 filepl 152 38375 0 38125 92 79 13 20 0 8 2 lockfpl 104 1802 0 1797 5 4 1 2 0 8 0 lockfspl 48 510 0 507 1 0 1 1 0 8 0 sessionpl 144 52 0 35 1 0 1 1 0 8 0 pgrppl 48 146 0 129 1 0 1 1 0 8 0 ucredpl 104 4424 0 4403 1 0 1 1 0 8 0 zombiepl 144 7683 0 7682 1 0 1 1 0 8 0 processpl 1136 7750 0 7682 6 0 6 6 0 8 0 procpl 680 20399 0 20307 13 3 10 10 0 8 0 srpgc 96 42 0 42 10 10 0 1 0 8 0 sosppl 168 50 0 50 12 11 1 1 0 8 1 sockpl 584 11544 0 11496 133 124 9 20 0 8 5 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 22 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 16 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 33 0 0 4 1 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 350 0 0 34 12 22 34 0 8 0 mtagpl 96 336 0 0 5 0 5 5 0 8 0 mbufpl 256 1061 0 0 57 0 57 57 0 8 0 bufpl 280 17828 0 11509 452 0 452 452 0 8 0 anonpl 24 894365 0 880586 220 119 101 155 0 186 0 amapchunkpl 152 235390 0 234496 93 54 39 66 0 158 0 amappl16 200 17863 0 17426 105 79 26 42 0 8 0 amappl15 192 8 0 8 3 3 0 1 0 8 0 amappl14 184 253 0 235 4 3 1 2 0 8 0 amappl13 176 56 0 54 1 0 1 1 0 8 0 amappl12 168 8800 0 8769 3 1 2 2 0 8 0 amappl11 160 61 0 46 1 0 1 1 0 8 0 amappl10 152 63 0 52 1 0 1 1 0 8 0 amappl9 144 247 0 247 2 2 0 1 0 8 0 amappl8 136 490 0 384 5 1 4 4 0 8 0 amappl7 128 274 0 249 2 0 2 2 0 8 0 amappl6 120 699 0 682 1 0 1 1 0 8 0 amappl5 112 273 0 262 1 0 1 1 0 8 0 amappl4 104 759 0 726 8 7 1 2 0 8 0 amappl3 96 45831 0 45732 4 1 3 3 0 8 0 amappl2 88 8587 0 8507 3 1 2 3 0 8 0 amappl1 80 37340 0 36784 23 10 13 23 0 8 0 amappl 88 73315 0 73057 7 0 7 7 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 7824 0 7699 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7824 0 7699 1 0 1 1 0 8 0 vmmpekpl 168 58372 0 58297 4 0 4 4 0 8 0 vmmpepl 168 477642 0 475150 298 171 127 140 0 357 0 vmsppl 448 7823 0 7699 16 1 15 15 0 8 0 rwobjpl 56 123613 0 115935 119 9 110 112 0 8 0 pdppl 4096 15655 0 15495 625 459 166 166 0 8 6 pvpl 32 45443 0 0 367 0 367 367 0 265 0 pmappl 248 7823 0 7699 9 1 8 8 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1214 0 674 16 0 16 16 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace done_flush() at done_flush+0x38 vm_run(ffff8000329e3980) at vm_run+0x169 vmmioctl(a00,c0205602,ffff8000329e3980,1,ffff80002a21bd68) at vmmioctl+0x2a1 sys/dev/vmm/vmm.c:242 VOP_IOCTL(fffffd807e6ec0e0,c0205602,ffff8000329e3980,1,fffffd807f7d7410,ffff80002a21bd68) at VOP_IOCTL+0x97 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806b9d9a30,c0205602,ffff8000329e3980,ffff80002a21bd68) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a21bd68,ffff8000329e3b60,ffff8000329e3ab0) at sys_ioctl+0x4a2 syscall(ffff8000329e3b60) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff8000329e3b60) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x68fd4438b20, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cfbff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 end of kernel end trace frame: 0x736ac21cb630, count: -3