panic: rw_enter: dklk locking against myself Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *244194 96163 0 0 0x4000000 1K syz-executor.1 411082 96163 0 0 0x4000000 0 syz-executor.1 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8249f722) at panic+0x177 sys/kern/subr_prf.c:202 rw_enter(ffff8000006ac058,11) at rw_enter+0x482 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(ffff8000006ac058,11) at rw_enter+0x482 sys/kern/kern_rwlock.c:274 vndopen(2902,3,2000,ffff800021267a40) at vndopen+0x8d sys/dev/vnd.c:185 spec_open(ffff8000244c0be8) at spec_open+0x3c8 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd806f2dce68,3,fffffd807f7d7480,ffff800021267a40) at VOP_OPEN+0x7c sys/kern/vfs_vops.c:153 vn_open(ffff8000244c0e80,3,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 vndioctl(2902,c0384600,ffff8000244c11a0,1,ffff800021267a40) at vndioctl+0xa10 sys/dev/vnd.c:452 VOP_IOCTL(fffffd806f2dce68,c0384600,ffff8000244c11a0,1,fffffd807f7d7480,ffff800021267a40) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 vn_ioctl(fffffd80677f3448,c0384600,ffff8000244c11a0,ffff800021267a40) at vn_ioctl+0xba sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800021267a40,ffff8000244c12b8,ffff8000244c1300) at sys_ioctl+0x4a2 syscall(ffff8000244c1380) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244c1380) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe499c4d9fb0, count: 2 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: rw_enter: dklk locking against myself ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8249f722) at panic+0x177 sys/kern/subr_prf.c:202 rw_enter(ffff8000006ac058,11) at rw_enter+0x482 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(ffff8000006ac058,11) at rw_enter+0x482 sys/kern/kern_rwlock.c:274 vndopen(2902,3,2000,ffff800021267a40) at vndopen+0x8d sys/dev/vnd.c:185 spec_open(ffff8000244c0be8) at spec_open+0x3c8 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd806f2dce68,3,fffffd807f7d7480,ffff800021267a40) at VOP_OPEN+0x7c sys/kern/vfs_vops.c:153 vn_open(ffff8000244c0e80,3,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 vndioctl(2902,c0384600,ffff8000244c11a0,1,ffff800021267a40) at vndioctl+0xa10 sys/dev/vnd.c:452 VOP_IOCTL(fffffd806f2dce68,c0384600,ffff8000244c11a0,1,fffffd807f7d7480,ffff800021267a40) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 vn_ioctl(fffffd80677f3448,c0384600,ffff8000244c11a0,ffff800021267a40) at vn_ioctl+0xba sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800021267a40,ffff8000244c12b8,ffff8000244c1300) at sys_ioctl+0x4a2 syscall(ffff8000244c1380) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244c1380) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe499c4d9fb0, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000244c0980 rbx 0xffff800020d39bff rdx 0x8b rcx 0x2 rax 0x2d r8 0xffffffff8124a924 kprintf+0x144 r9 0x1 r10 0x40e56cc5a024a296 r11 0xdd0544d278ff0ca6 r12 0xffff800020d39a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81d111e8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000244c0970 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=244194 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff8000212677a0,0xffff8000212667f0 process=0xffff8000ffffa188 user=0xffff8000244bc000, vmspace=0xfffffd806f156b88 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 90551 363543 905 0 2 0 syz-executor.0 90551 391695 905 0 3 0x4000080 fsleep syz-executor.0 96163 100682 37146 0 2 0 syz-executor.1 *96163 244194 37146 0 7 0x4000000 syz-executor.1 96163 411082 37146 0 7 0x4000000 syz-executor.1 37146 61913 94305 0 3 0x82 nanoslp syz-executor.1 905 181835 94305 0 3 0x82 nanoslp syz-executor.0 94305 3439 89938 0 3 0x82 thrsleep syz-fuzzer 94305 389295 89938 0 3 0x4000082 thrsleep syz-fuzzer 94305 515274 89938 0 3 0x4000082 thrsleep syz-fuzzer 94305 515167 89938 0 3 0x4000082 thrsleep syz-fuzzer 94305 149731 89938 0 3 0x4000082 kqread syz-fuzzer 94305 270206 89938 0 3 0x4000082 thrsleep syz-fuzzer 94305 371811 89938 0 3 0x4000082 thrsleep syz-fuzzer 94305 109100 89938 0 3 0x4000082 thrsleep syz-fuzzer 94305 413239 89938 0 3 0x4000082 thrsleep syz-fuzzer 89938 150835 3587 0 3 0x10008a sigsusp ksh 3587 103186 68728 0 3 0x9a select sshd 33834 361749 1 0 3 0x100083 ttyin getty 68728 152196 1 0 3 0x88 select sshd 82617 305374 59581 74 3 0x100092 bpf pflogd 59581 513569 1 0 3 0x80 netio pflogd 8663 150300 89345 73 3 0x100090 kqread syslogd 89345 142583 1 0 3 0x100082 netio syslogd 90355 453667 1 0 3 0x100080 kqread resolvd 84050 261892 86922 77 3 0x100092 kqread dhcpleased 37934 16249 86922 77 3 0x100092 kqread dhcpleased 86922 2650 1 0 3 0x80 kqread dhcpleased 5073 49548 0 0 3 0x14200 bored smr 91552 459502 0 0 2 0x14200 zerothread 29749 264374 0 0 3 0x14200 aiodoned aiodoned 38016 173123 0 0 3 0x14200 syncer update 23865 317930 0 0 3 0x14200 cleaner cleaner 16805 293330 0 0 3 0x14200 reaper reaper 21120 93400 0 0 3 0x14200 pgdaemon pagedaemon 80849 386474 0 0 3 0x14200 bored crynlk 90509 506391 0 0 3 0x14200 bored crypto 76283 199621 0 0 3 0x14200 bored viomb 17785 461935 0 0 3 0x40014200 acpi0 acpi0 72372 46769 0 0 3 0x40014200 idle1 30619 121997 0 0 3 0x14200 bored softnet 58820 497648 0 0 3 0x14200 bored systqmp 69596 345233 0 0 3 0x14200 bored systq 29224 234484 0 0 3 0x40014200 bored softclock 69679 233833 0 0 3 0x40014200 idle0 1 159454 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 96163 (syz-executor.1) thread 0xffff800021267a40 (244194) exclusive rwlock dklk r = 0 (0xffff8000006ac068) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 rw_enter+0x3e2 sys/kern/kern_rwlock.c:310 #2 vndioctl+0x7d8 sys/dev/vnd.c:431 #3 VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 #4 vn_ioctl+0xba sys/kern/vfs_vnops.c:531 #5 sys_ioctl+0x4a2 #6 syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a0ddc8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 vn_ioctl+0x40 sys/kern/vfs_vnops.c:514 #2 sys_ioctl+0x4a2 #3 syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10123 6485K 6731K 78643K 21584 0 pcb 13 8K 8K 78643K 2031 0 rtable 106 3K 3K 78643K 172 0 ifaddr 44 10K 10K 78643K 45 0 counters 44 34K 34K 78643K 44 0 ioctlops 0 0K 4K 78643K 2512 0 iov 0 0K 24K 78643K 1772 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1227 77K 77K 78643K 10608 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 544 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 6 17K 25K 78643K 58337 0 sigio 1 0K 0K 78643K 636 0 proc 67 87K 111K 78643K 4922 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 33 2K 2K 78643K 33 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 2K 78643K 408 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 275 30K 31K 78643K 707142 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 10 0 temp 106 4213K 4279K 78643K 128555 0 kqueue 90 153K 159K 78643K 12981 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 47 0 44 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 27378 0 27362 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpcb 736 1493 0 1489 14 13 1 5 0 8 0 arp 120 6 0 0 1 0 1 1 0 8 0 inpcb 304 6194 0 6187 2 1 1 2 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 kcovpl 48 2 0 0 1 0 1 1 0 8 0 pffrag 232 22 0 22 2 2 0 1 0 482 0 pffrnode 88 19 0 19 2 2 0 1 0 8 0 pffrent 40 182 0 182 2 2 0 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 24 106 0 104 1 0 1 1 0 8 0 pfstkey 112 106 0 104 2 1 1 2 0 8 0 pfstate 320 106 0 104 6 5 1 6 0 8 0 pfrule 1360 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 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 63282 0 61870 89 0 89 89 0 8 0 ffsino 272 63282 0 61870 95 0 95 95 0 8 0 nchpl 144 138103 0 136481 61 0 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 335618 0 335618 1 0 1 1 0 8 1 percpumem 16 34 0 0 1 0 1 1 0 8 0 scxspl 216 362239 0 362239 9 8 1 8 0 8 1 plimitpl 152 17 0 8 1 0 1 1 0 8 0 sigapl 424 58588 0 58553 5 1 4 5 0 8 0 futexpl 56 290609 0 290608 2 1 1 1 0 8 0 knotepl 112 104 0 0 2 0 2 2 0 8 0 kqueuepl 216 20493 0 20062 56 31 25 25 0 8 0 pipepl 336 82 0 72 1 0 1 1 0 8 0 fdescpl 496 58572 0 58553 3 0 3 3 0 8 0 filepl 152 181502 0 181381 56 51 5 7 0 8 0 lockfpl 104 7420 0 7418 1 0 1 1 0 8 0 lockfspl 48 2687 0 2685 1 0 1 1 0 8 0 sessionpl 144 18 0 7 1 0 1 1 0 8 0 pgrppl 48 447 0 436 1 0 1 1 0 8 0 ucredpl 96 128 0 116 1 0 1 1 0 8 0 zombiepl 144 58553 0 58553 1 0 1 1 0 8 1 processpl 1072 58588 0 58553 3 0 3 3 0 8 0 procpl 672 135065 0 135019 69 65 4 5 0 8 0 sockpl 480 33619 0 33593 66 62 4 6 0 8 0 mcl64k 65536 41 0 0 5 2 3 3 0 8 0 mcl16k 16384 25 0 0 4 1 3 3 0 8 0 mcl12k 12288 57 0 0 2 0 2 2 0 8 0 mcl9k 9216 65 0 0 2 0 2 2 0 8 0 mcl8k 8192 28 0 0 4 2 2 3 0 8 0 mcl4k 4096 57 0 0 5 2 3 3 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 146 0 0 12 1 11 12 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 1531 0 0 16 3 13 15 0 8 0 bufpl 280 63558 0 57230 453 0 453 453 0 8 0 anonpl 24 15981530 0 15974157 158 109 49 71 0 186 0 amapchunkpl 152 1679576 0 1679112 52 34 18 19 0 158 0 amappl16 200 163626 0 163476 76 68 8 22 0 8 0 amappl15 192 77 0 70 1 0 1 1 0 8 0 amappl14 184 5 0 4 1 0 1 1 0 8 0 amappl13 176 35 0 32 1 0 1 1 0 8 0 amappl12 168 58331 0 58325 1 0 1 1 0 8 0 amappl11 160 80 0 62 1 0 1 1 0 8 0 amappl10 152 13 0 9 1 0 1 1 0 8 0 amappl9 144 357 0 352 1 0 1 1 0 8 0 amappl8 136 1337 0 1210 5 0 5 5 0 8 0 amappl7 128 53 0 46 1 0 1 1 0 8 0 amappl6 120 56 0 47 1 0 1 1 0 8 0 amappl5 112 1181 0 1161 1 0 1 1 0 8 0 amappl4 104 731 0 706 1 0 1 1 0 8 0 amappl3 96 60518 0 60497 1 0 1 1 0 8 0 amappl2 88 59342 0 59302 2 1 1 2 0 8 0 amappl1 80 973269 0 972805 13 3 10 13 0 8 0 amappl 88 706717 0 706571 4 0 4 4 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 64 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 58572 0 58553 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 58572 0 58553 1 0 1 1 0 8 0 vmmpekpl 168 265963 0 265933 2 0 2 2 0 8 0 vmmpepl 168 6533875 0 6532196 148 73 75 84 0 357 0 vmsppl 368 58571 0 58553 2 0 2 2 0 8 0 rwobjpl 56 1160924 0 1159926 31 16 15 18 0 8 0 pdppl 4096 117152 0 117106 62 16 46 50 0 8 0 pvpl 32 26407320 0 26396448 428 333 95 135 0 265 0 pmappl 224 58571 0 58553 2 0 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 331 0 43 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8279bff0) at x86_ipi_db+0x1a 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+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:139 sys_futex(ffff8000212662a0,ffff8000244ccf30,ffff8000244ccf80) at sys_futex+0xfb sys/kern/sys_futex.c:110 syscall(ffff8000244cd000) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244cd000) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe49db328a60, count: 8 ddb{0}> trace x86_ipi_db(ffffffff8279bff0) at x86_ipi_db+0x1a 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+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:139 sys_futex(ffff8000212662a0,ffff8000244ccf30,ffff8000244ccf80) at sys_futex+0xfb sys/kern/sys_futex.c:110 syscall(ffff8000244cd000) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244cd000) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe49db328a60, count: -7 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8249f722) at panic+0x177 sys/kern/subr_prf.c:202 rw_enter(ffff8000006ac058,11) at rw_enter+0x482 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(ffff8000006ac058,11) at rw_enter+0x482 sys/kern/kern_rwlock.c:274 vndopen(2902,3,2000,ffff800021267a40) at vndopen+0x8d sys/dev/vnd.c:185 spec_open(ffff8000244c0be8) at spec_open+0x3c8 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd806f2dce68,3,fffffd807f7d7480,ffff800021267a40) at VOP_OPEN+0x7c sys/kern/vfs_vops.c:153 vn_open(ffff8000244c0e80,3,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 vndioctl(2902,c0384600,ffff8000244c11a0,1,ffff800021267a40) at vndioctl+0xa10 sys/dev/vnd.c:452 VOP_IOCTL(fffffd806f2dce68,c0384600,ffff8000244c11a0,1,fffffd807f7d7480,ffff800021267a40) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 vn_ioctl(fffffd80677f3448,c0384600,ffff8000244c11a0,ffff800021267a40) at vn_ioctl+0xba sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800021267a40,ffff8000244c12b8,ffff8000244c1300) at sys_ioctl+0x4a2 syscall(ffff8000244c1380) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244c1380) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe499c4d9fb0, count: 2 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8249f722) at panic+0x177 sys/kern/subr_prf.c:202 rw_enter(ffff8000006ac058,11) at rw_enter+0x482 rw_enter_diag sys/kern/kern_rwlock.c:183 [inline] rw_enter(ffff8000006ac058,11) at rw_enter+0x482 sys/kern/kern_rwlock.c:274 vndopen(2902,3,2000,ffff800021267a40) at vndopen+0x8d sys/dev/vnd.c:185 spec_open(ffff8000244c0be8) at spec_open+0x3c8 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd806f2dce68,3,fffffd807f7d7480,ffff800021267a40) at VOP_OPEN+0x7c sys/kern/vfs_vops.c:153 vn_open(ffff8000244c0e80,3,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 vndioctl(2902,c0384600,ffff8000244c11a0,1,ffff800021267a40) at vndioctl+0xa10 sys/dev/vnd.c:452 VOP_IOCTL(fffffd806f2dce68,c0384600,ffff8000244c11a0,1,fffffd807f7d7480,ffff800021267a40) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:295 vn_ioctl(fffffd80677f3448,c0384600,ffff8000244c11a0,ffff800021267a40) at vn_ioctl+0xba sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800021267a40,ffff8000244c12b8,ffff8000244c1300) at sys_ioctl+0x4a2 syscall(ffff8000244c1380) at syscall+0x5a9 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000244c1380) at syscall+0x5a9 sys/arch/amd64/amd64/trap.c:587 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe499c4d9fb0, count: -13