witness: exclusive lock of (rwlock) vmmaplk while share locked panic: share->excl Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 74090 75646 32767 0x10 0 0 syz-executor.0 *170825 75646 32767 0x10 0x4000000 1K syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8257690f) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd witness_debugger sys/kern/subr_witness.c:2505 [inline] witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd sys/kern/subr_witness.c:772 rw_enter(fffffd806cacae78,21) at rw_enter+0xd1 sys/kern/kern_rwlock.c:250 vm_map_lock_ln(fffffd806cacae70,441,ffff800021231000) at vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5466 uvm_map_extract(fffffd806cacae70,7f7ffffdf000,1000,ffff8000294f59e0,0) at uvm_map_extract+0x173 sys/uvm/uvm_map.c:4530 uvm_io(fffffd806cacae70,ffff8000294f5a78,0) at uvm_io+0x127 sys/uvm/uvm_io.c:100 sysctl_proc_args(ffff8000294f5ec8,2,20000080,ffff8000294f5ef8,ffff8000260abcf0) at sysctl_proc_args+0x24b sys/kern/kern_sysctl.c:1790 kern_sysctl(ffff8000294f5ec4,3,20000080,ffff8000294f5ef8,0,1c,7d2b00ad82739cad) at kern_sysctl+0xfd sys/kern/kern_sysctl.c:449 sys_sysctl(ffff8000260abcf0,ffff8000294f5f68,ffff8000294f5fc0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 syscall(ffff8000294f6030) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000294f6030) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb4e851bffb0, count: 3 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: share->excl ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8257690f) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd witness_debugger sys/kern/subr_witness.c:2505 [inline] witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd sys/kern/subr_witness.c:772 rw_enter(fffffd806cacae78,21) at rw_enter+0xd1 sys/kern/kern_rwlock.c:250 vm_map_lock_ln(fffffd806cacae70,441,ffff800021231000) at vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5466 uvm_map_extract(fffffd806cacae70,7f7ffffdf000,1000,ffff8000294f59e0,0) at uvm_map_extract+0x173 sys/uvm/uvm_map.c:4530 uvm_io(fffffd806cacae70,ffff8000294f5a78,0) at uvm_io+0x127 sys/uvm/uvm_io.c:100 sysctl_proc_args(ffff8000294f5ec8,2,20000080,ffff8000294f5ef8,ffff8000260abcf0) at sysctl_proc_args+0x24b sys/kern/kern_sysctl.c:1790 kern_sysctl(ffff8000294f5ec4,3,20000080,ffff8000294f5ef8,0,1c,7d2b00ad82739cad) at kern_sysctl+0xfd sys/kern/kern_sysctl.c:449 sys_sysctl(ffff8000260abcf0,ffff8000294f5f68,ffff8000294f5fc0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 syscall(ffff8000294f6030) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000294f6030) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb4e851bffb0, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000294f5640 rbx 0xffff800020ce9bff rdx 0xffff800000bbcd80 rcx 0 rax 0xffff8000260abcf0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8fc52319763c8f7a r11 0x294296f5eb91f907 r12 0xffff800020ce9a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8138d658 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000294f5630 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=170825 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=72, nice=20 forw=0xffffffffffffffff, list=0xffff8000260aba50,0xffff8000260aa560 process=0xffff800027aee160 user=0xffff8000294f1000, vmspace=0xfffffd806cacae70 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 88635 335168 14418 32767 2 0x10 syz-executor.3 81606 122073 74771 32767 2 0x10 syz-executor.2 81606 386237 74771 32767 2 0x4000010 syz-executor.2 75646 74090 31040 32767 7 0x10 syz-executor.0 *75646 170825 31040 32767 7 0x4000010 syz-executor.0 90 115879 87956 32767 2 0x10 syz-executor.6 56576 406399 71910 32767 2 0x10 syz-executor.4 56576 393235 71910 32767 3 0x4000090 fsleep syz-executor.4 77677 113165 55307 32767 2 0x10 syz-executor.7 77677 191149 55307 32767 3 0x4000090 ttyin syz-executor.7 17168 357755 0 0 3 0x14200 bored sosplice 20790 358927 39833 32767 2 0x10 syz-executor.5 55307 520421 70302 32767 3 0x90 nanoslp syz-executor.7 39833 292772 87432 0 3 0x82 wait syz-executor.5 70302 41230 87432 0 3 0x82 wait syz-executor.7 87956 182604 36768 32767 3 0x90 nanoslp syz-executor.6 71910 401604 26332 32767 3 0x90 nanoslp syz-executor.4 36768 87464 87432 0 3 0x82 wait syz-executor.6 14418 104346 61480 32767 3 0x90 nanoslp syz-executor.3 26332 64391 87432 0 3 0x82 wait syz-executor.4 30502 488612 7832 32767 2 0x10 syz-executor.1 61480 520036 87432 0 3 0x82 wait syz-executor.3 74771 439309 22127 32767 3 0x90 nanoslp syz-executor.2 7832 367259 87432 0 3 0x82 wait syz-executor.1 22127 144138 87432 0 3 0x82 wait syz-executor.2 31040 408570 62736 32767 3 0x90 nanoslp syz-executor.0 62736 60937 87432 0 3 0x82 wait syz-executor.0 87432 308134 65597 0 3 0x82 thrsleep syz-fuzzer 87432 309645 65597 0 3 0x4000082 nanoslp syz-fuzzer 87432 45227 65597 0 3 0x4000082 thrsleep syz-fuzzer 87432 410032 65597 0 3 0x4000082 kqread syz-fuzzer 87432 488832 65597 0 3 0x4000082 thrsleep syz-fuzzer 87432 64539 65597 0 3 0x4000082 thrsleep syz-fuzzer 87432 288108 65597 0 3 0x4000082 thrsleep syz-fuzzer 87432 500421 65597 0 3 0x4000082 thrsleep syz-fuzzer 65597 298096 97507 0 3 0x10008a sigsusp ksh 97507 463432 67065 0 3 0x9a kqread sshd 309 363066 1 0 3 0x100083 ttyin getty 67065 91293 1 0 3 0x88 kqread sshd 75395 146540 37596 73 3 0x1100090 kqread syslogd 37596 370030 1 0 3 0x100082 netio syslogd 71238 30622 1 0 3 0x100080 kqread resolvd 48587 449333 78739 77 3 0x100092 kqread dhcpleased 39797 459961 78739 77 3 0x100092 kqread dhcpleased 78739 307485 1 0 3 0x80 kqread dhcpleased 78534 159884 0 0 3 0x14200 bored smr 72817 215667 0 0 2 0x14200 zerothread 16599 140703 0 0 3 0x14200 aiodoned aiodoned 70880 241511 0 0 3 0x14200 syncer update 93049 490740 0 0 3 0x14200 cleaner cleaner 22226 345702 0 0 3 0x14200 reaper reaper 23776 203961 0 0 3 0x14200 pgdaemon pagedaemon 15518 399144 0 0 3 0x14200 bored viomb 29 445658 0 0 3 0x40014200 acpi0 acpi0 92494 154694 0 0 3 0x40014200 idle1 91997 300111 0 0 3 0x14200 bored softnet 48996 367387 0 0 3 0x14200 bored systqmp 50406 512039 0 0 3 0x14200 bored systq 2674 19865 0 0 3 0x40014200 bored softclock 31399 473940 0 0 3 0x40014200 idle0 1 145754 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 75646 (syz-executor.0) thread 0xffff8000260abcf0 (170825) shared rwlock vmmaplk r = 0 (0xfffffd806cacae88) #0 witness_lock+0x44d #1 uvm_vslock+0xc8 sys/uvm/uvm_glue.c:129 #2 sys_sysctl+0x2d8 sys/kern/kern_sysctl.c:240 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82941f10) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:233 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829de988) #0 witness_lock+0x44d #1 syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10171 6407K 6419K 78643K 11261 0 pcb 13 8K 8K 78643K 13 0 rtable 238 6K 7K 78643K 375 0 ifaddr 81 16K 16K 78643K 82 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 35K 78643K 56 0 ioctlops 0 0K 2K 78643K 33 0 iov 0 0K 12K 78643K 4 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1270 79K 79K 78643K 1287 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 24 89K 117K 78643K 459 0 proc 56 74K 99K 78643K 463 0 subproc 104 6K 6K 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 12 0 in_multi 99 6K 6K 78643K 99 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 43 201K 201K 78643K 43 0 exec 0 0K 2K 78643K 615 0 tdb 3 0K 0K 78643K 3 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 292 80K 81K 78643K 6771 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 42 0 NDP 11 0K 2K 78643K 27 0 temp 115 4704K 4764K 78643K 4728 0 kqueue 12 18K 22K 78643K 40 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 67 0 64 1 0 1 1 0 8 0 rtentry 112 111 0 1 4 0 4 4 0 8 0 unpcb 136 133 0 118 1 0 1 1 0 8 0 syncache 296 12 0 12 2 1 1 1 0 8 1 tcpqe 32 12 0 12 1 1 0 1 0 8 0 tcpcb 736 113 0 97 3 0 3 3 0 8 1 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 304 231 0 223 1 0 1 1 0 8 0 nd6 48 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 451 0 0 29 0 29 29 0 8 0 art_table 32 452 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 0 1 1 0 8 1 semupl 112 7 0 7 1 0 1 1 0 8 1 semapl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1836 0 408 90 0 90 90 0 8 0 ffsino 272 1836 0 408 96 0 96 96 0 8 0 nchpl 144 2430 0 771 62 0 62 62 0 8 0 uvmvnodes 80 1949 0 0 40 0 40 40 0 8 0 vnodes 224 1949 0 0 115 0 115 115 0 8 0 namei 1024 7332 0 7332 2 1 1 2 0 8 1 percpumem 16 40 0 0 1 0 1 1 0 8 0 scxspl 216 7367 0 7367 2 1 1 2 0 8 1 plimitpl 152 38 0 16 1 0 1 1 0 8 0 sigapl 424 735 0 685 7 0 7 7 0 8 1 futexpl 64 2116 0 2115 1 0 1 1 0 8 0 knotepl 120 108 0 0 4 0 4 4 0 8 0 kqueuepl 216 107 0 99 2 0 2 2 0 8 1 pipepl 336 130 0 102 3 0 3 3 0 8 0 fdescpl 496 720 0 685 7 1 6 6 0 8 1 filepl 152 2354 0 2116 10 0 10 10 0 8 0 lockfpl 104 38 0 36 1 0 1 1 0 8 0 lockfspl 48 18 0 16 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 23 0 7 1 0 1 1 0 8 0 ucredpl 96 190 0 172 1 0 1 1 0 8 0 zombiepl 144 685 0 685 1 0 1 1 0 8 1 processpl 1064 735 0 685 5 1 4 4 0 8 0 procpl 672 1109 0 1048 6 0 6 6 0 8 0 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 480 431 0 405 5 0 5 5 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 147 0 0 18 0 18 18 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 359 0 0 23 1 22 22 0 8 0 bufpl 288 3934 0 143 271 0 271 271 0 8 0 anonpl 24 142363 0 131577 72 3 69 69 0 186 0 amapchunkpl 152 15312 0 14623 31 1 30 30 0 158 2 amappl16 200 996 0 755 14 0 14 14 0 8 0 amappl15 192 168 0 162 1 0 1 1 0 8 0 amappl14 184 112 0 103 1 0 1 1 0 8 0 amappl13 176 90 0 87 1 0 1 1 0 8 0 amappl12 168 148 0 139 1 0 1 1 0 8 0 amappl11 160 128 0 113 1 0 1 1 0 8 0 amappl10 152 37 0 31 1 0 1 1 0 8 0 amappl9 144 516 0 509 1 0 1 1 0 8 0 amappl8 136 552 0 511 2 0 2 2 0 8 0 amappl7 128 112 0 102 1 0 1 1 0 8 0 amappl6 120 244 0 225 2 1 1 2 0 8 0 amappl5 112 301 0 288 1 0 1 1 0 8 0 amappl4 104 961 0 928 2 0 2 2 0 8 1 amappl3 96 294 0 272 1 0 1 1 0 8 0 amappl2 88 619 0 569 3 1 2 3 0 8 0 amappl1 80 15451 0 14830 18 2 16 18 0 8 1 amappl 88 6361 0 6125 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 720 0 685 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 720 0 685 1 0 1 1 0 8 0 vmmpekpl 168 9474 0 9432 3 0 3 3 0 8 0 vmmpepl 168 66286 0 63865 123 0 123 123 0 357 14 vmsppl 368 719 0 685 4 0 4 4 0 8 0 rwobjpl 56 18219 0 15117 44 0 44 44 0 8 0 pdppl 4096 1447 0 1370 109 28 81 93 0 8 4 pvpl 32 377854 0 362076 243 2 241 243 0 265 106 pmappl 248 719 0 685 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 658 0 32 18 0 18 18 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff829baff0) 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 __mp_lock(ffffffff829de780) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829de780) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffde7f0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff829baff0) 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 __mp_lock(ffffffff829de780) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829de780) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffde7f0, count: -6 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(ffffffff8257690f) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd witness_debugger sys/kern/subr_witness.c:2505 [inline] witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd sys/kern/subr_witness.c:772 rw_enter(fffffd806cacae78,21) at rw_enter+0xd1 sys/kern/kern_rwlock.c:250 vm_map_lock_ln(fffffd806cacae70,441,ffff800021231000) at vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5466 uvm_map_extract(fffffd806cacae70,7f7ffffdf000,1000,ffff8000294f59e0,0) at uvm_map_extract+0x173 sys/uvm/uvm_map.c:4530 uvm_io(fffffd806cacae70,ffff8000294f5a78,0) at uvm_io+0x127 sys/uvm/uvm_io.c:100 sysctl_proc_args(ffff8000294f5ec8,2,20000080,ffff8000294f5ef8,ffff8000260abcf0) at sysctl_proc_args+0x24b sys/kern/kern_sysctl.c:1790 kern_sysctl(ffff8000294f5ec4,3,20000080,ffff8000294f5ef8,0,1c,7d2b00ad82739cad) at kern_sysctl+0xfd sys/kern/kern_sysctl.c:449 sys_sysctl(ffff8000260abcf0,ffff8000294f5f68,ffff8000294f5fc0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 syscall(ffff8000294f6030) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000294f6030) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb4e851bffb0, count: 3 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8257690f) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd witness_debugger sys/kern/subr_witness.c:2505 [inline] witness_checkorder(fffffd806cacae88,9,0) at witness_checkorder+0x11bd sys/kern/subr_witness.c:772 rw_enter(fffffd806cacae78,21) at rw_enter+0xd1 sys/kern/kern_rwlock.c:250 vm_map_lock_ln(fffffd806cacae70,441,ffff800021231000) at vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5466 uvm_map_extract(fffffd806cacae70,7f7ffffdf000,1000,ffff8000294f59e0,0) at uvm_map_extract+0x173 sys/uvm/uvm_map.c:4530 uvm_io(fffffd806cacae70,ffff8000294f5a78,0) at uvm_io+0x127 sys/uvm/uvm_io.c:100 sysctl_proc_args(ffff8000294f5ec8,2,20000080,ffff8000294f5ef8,ffff8000260abcf0) at sysctl_proc_args+0x24b sys/kern/kern_sysctl.c:1790 kern_sysctl(ffff8000294f5ec4,3,20000080,ffff8000294f5ef8,0,1c,7d2b00ad82739cad) at kern_sysctl+0xfd sys/kern/kern_sysctl.c:449 sys_sysctl(ffff8000260abcf0,ffff8000294f5f68,ffff8000294f5fc0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 syscall(ffff8000294f6030) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000294f6030) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb4e851bffb0, count: -12