uvm_fault(0xfffffd806516fcd0, 0x9, 0, 1) -> e kernel: page fault trap, code=0 Stopped at witness_checkorder+0x1ec: movl 0x8(%r14),%ebx TID PID UID PRFLAGS PFLAGS CPU COMMAND 221966 97908 0 0 0x4000000 1 syz-executor.2 witness_checkorder(fffffd806f479cb8,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f479ca8) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff800021280570,fffffd806f479ca8,fffffd806f479d30,4,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff800021280570,4) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff800021280570) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff800021280570,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff800021280570,ffff80002e461df0,ffff80002e461e40) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e461ec0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e461ec0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f437676b420, count: 6 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806516fcd0, 0x9, 0, 1) -> e ddb{0}> trace witness_checkorder(fffffd806f479cb8,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f479ca8) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff800021280570,fffffd806f479ca8,fffffd806f479d30,4,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff800021280570,4) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff800021280570) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff800021280570,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff800021280570,ffff80002e461df0,ffff80002e461e40) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e461ec0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e461ec0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f437676b420, count: -9 ddb{0}> show registers rdi 0 rsi 0x20000 acpi_pdirpa+0xbe63 rbp 0xffff80002e461b90 rbx 0xe rdx 0 rcx 0xffff800021280570 rax 0xffffffff82be4ff0 cpu_info_full_primary+0x1ff0 r8 0x1 r9 0 r10 0xf45aa15281a457a1 r11 0xc6a01b5e68b48ea4 r12 0 r13 0xfffffd806f479cb8 r14 0x1 r15 0xffff800021280570 rip 0xffffffff814ce85c witness_checkorder+0x1ec cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e461ae0 ss 0x10 witness_checkorder+0x1ec: movl 0x8(%r14),%ebx ddb{0}> show proc PROC (syz-executor.0) pid=106273 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021281d58,0xffffffff82cfc210 process=0xffff80002130a198 user=0xffff80002e45c000, vmspace=0xfffffd806516fcd0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 90965 511056 29556 0 2 0x480 syz-executor.4 90965 325769 29556 0 3 0x4000080 fsleep syz-executor.4 28910 310940 62083 0 2 0 syz-executor.6 97908 353325 75457 0 2 0 syz-executor.2 97908 281945 75457 0 2 0x4000000 syz-executor.2 97908 221966 75457 0 7 0x4000000 syz-executor.2 89024 190521 90025 0 2 0 syz-executor.3 89024 55808 90025 0 2 0x4000000 syz-executor.3 89024 208169 90025 0 3 0x4000080 fsleep syz-executor.3 62083 91067 87299 0 2 0x2 syz-executor.6 29556 446742 87299 0 2 0x482 syz-executor.4 2872 193880 87299 0 2 0x2 syz-executor.7 94792 184870 1 0 3 0x100083 ttyopn getty 53794 130530 0 0 3 0x14200 bored sosplice 44015 42914 87299 0 3 0x82 nanoslp syz-executor.5 42767 39553 0 0 3 0x14280 nfsidl nfsio 39316 167015 0 0 3 0x14280 nfsidl nfsio 33164 19502 0 0 3 0x14280 nfsidl nfsio 59115 54572 0 0 3 0x14280 nfsidl nfsio 22762 386871 0 0 3 0x14280 nfsidl nfsio 31609 381811 0 0 3 0x14280 nfsidl nfsio 2256 225973 0 0 3 0x14280 nfsidl nfsio 52136 490308 0 0 3 0x14280 nfsidl nfsio 2304 47757 0 0 3 0x14280 nfsidl nfsio 96089 502396 0 0 3 0x14280 nfsidl nfsio 43311 185057 0 0 3 0x14280 nfsidl nfsio 44157 496649 0 0 3 0x14280 nfsidl nfsio 55492 301209 0 0 3 0x14280 nfsidl nfsio 18336 34394 0 0 3 0x14280 nfsidl nfsio 97310 173974 0 0 3 0x14280 nfsidl nfsio 86872 481746 0 0 3 0x14280 nfsidl nfsio 62835 18553 0 0 3 0x14280 nfsidl nfsio 71939 243682 0 0 3 0x14280 nfsidl nfsio 48083 174800 0 0 3 0x14280 nfsidl nfsio 4206 155830 0 0 3 0x14280 nfsidl nfsio 90025 135778 87299 0 3 0x82 nanoslp syz-executor.3 75457 138193 87299 0 2 0x482 syz-executor.2 47206 469346 87299 0 2 0x482 syz-executor.1 55813 142253 87299 0 3 0x82 nanoslp syz-executor.0 87299 194251 75676 0 3 0x2000082 wait syz-fuzzer 87299 139801 75676 0 3 0x6000082 nanoslp syz-fuzzer 87299 307923 75676 0 3 0x6000082 wait syz-fuzzer 87299 299963 75676 0 3 0x6000082 wait syz-fuzzer 87299 414248 75676 0 3 0x6000082 thrsleep syz-fuzzer 87299 240014 75676 0 3 0x6000082 wait syz-fuzzer 87299 332917 75676 0 3 0x6000082 wait syz-fuzzer 87299 330334 75676 0 3 0x6000082 wait syz-fuzzer 87299 313508 75676 0 3 0x6000082 thrsleep syz-fuzzer 87299 518670 75676 0 3 0x6000082 wait syz-fuzzer 87299 372564 75676 0 3 0x6000082 thrsleep syz-fuzzer 87299 104859 75676 0 3 0x6000082 kqread syz-fuzzer 87299 188635 75676 0 3 0x6000082 thrsleep syz-fuzzer 87299 18036 75676 0 3 0x6000082 thrsleep syz-fuzzer 87299 236129 75676 0 3 0x6000082 wait syz-fuzzer 75676 469985 4976 0 3 0x10008a sigsusp ksh 4976 10361 2794 0 3 0x9a kqread sshd 2794 518954 1 0 3 0x88 kqread sshd 36001 366524 62837 74 3 0x1100092 bpf pflogd 62837 181048 1 0 3 0x80 netio pflogd 48386 499340 28099 73 3 0x1100090 kqread syslogd 28099 406087 1 0 3 0x100082 netio syslogd 10861 172469 1 0 3 0x100080 kqread resolvd 23699 57062 76549 77 3 0x100092 kqread dhcpleased 98365 37161 76549 77 3 0x100092 kqread dhcpleased 76549 18042 1 0 3 0x80 kqread dhcpleased 1824 36666 0 0 3 0x14200 bored smr 19272 447518 0 0 2 0x14200 zerothread 657 420258 0 0 3 0x14200 aiodoned aiodoned 78512 269547 0 0 3 0x14200 syncer update 79384 502598 0 0 3 0x14200 cleaner cleaner 33325 386097 0 0 2 0x14200 reaper 11125 393747 0 0 3 0x14200 pgdaemon pagedaemon 8902 469926 0 0 3 0x14200 bored viomb 94590 435941 0 0 3 0x40014200 acpi0 acpi0 79112 34247 0 0 3 0x40014200 idle1 90546 297933 0 0 3 0x14200 bored softnet3 45690 165092 0 0 3 0x14200 bored softnet2 67771 263679 0 0 3 0x14200 bored softnet1 59126 160575 0 0 3 0x14200 bored softnet0 93879 142117 0 0 3 0x14200 bored systqmp 82469 400960 0 0 3 0x14200 bored systq 96231 180539 0 0 3 0x40014200 bored softclock 9830 463456 0 0 3 0x40014200 idle0 1 450524 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 97908 (syz-executor.2) thread 0xffff800021281d58 (221966) shared rwlock vmmaplk r = 0 (0xfffffd8069d6dbf0) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10199 6486K 7079K 78643K 16089 0 pcb 13 14K 15K 78643K 165 0 rtable 239 7K 7K 78643K 539 0 pf 32 9K 10K 78643K 103 0 ifaddr 45 15K 16K 78643K 91 0 ifgroup 55 2K 2K 78643K 151 0 sysctl 2 0K 0K 78643K 2 0 counters 60 35K 36K 78643K 110 0 ioctlops 0 0K 4K 78643K 1631 0 iov 0 0K 16K 78643K 169 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1408 88K 88K 78643K 3432 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 27 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 194 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 93K 78643K 2649 0 sigio 0 0K 0K 78643K 50 0 proc 69 91K 128K 78643K 827 0 subproc 104 6K 6K 78643K 169 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 149 0 in_multi 99 7K 7K 78643K 169 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 85 387K 387K 78643K 85 0 exec 0 0K 1K 78643K 763 0 pfkey data 0 0K 0K 78643K 3 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 8 62K 64K 78643K 10 0 UVM amap 379 90K 107K 78643K 28444 0 UVM aobj 114 3K 4K 78643K 120 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 54 0 NDP 12 0K 1K 78643K 63 0 temp 75 5920K 6000K 78643K 32551 0 kqueue 12 18K 27K 78643K 191 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> 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 120 130 0 127 2 1 1 2 0 8 0 rtentry 112 172 0 61 4 0 4 4 0 8 0 unpcb 144 7625 0 7607 42 36 6 11 0 8 5 syncache 304 12 0 12 4 3 1 1 0 8 1 tcpqe 32 1203 0 1203 5 4 1 2 0 8 1 tcpcb 808 1233 0 1225 39 37 2 12 0 8 0 arp 120 29 0 10 1 0 1 1 0 8 0 inpcb 368 1973 0 1961 39 37 2 11 0 8 0 nd6 136 41 0 17 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1256 7 0 7 3 3 0 1 0 8 0 pffrag 232 9 0 7 1 0 1 1 0 482 0 pffrnode 88 9 0 7 1 0 1 1 0 8 0 pffrent 40 29 0 27 1 0 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 91 0 75 1 0 1 1 0 8 0 pfstkey 128 91 0 75 2 0 2 2 0 8 0 pfstate 376 91 0 75 4 2 2 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 256 693 0 234 30 1 29 30 0 8 0 art_table 32 694 0 234 4 0 4 4 0 8 0 art_node 16 168 0 67 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 6 2 1 1 1 0 8 0 semapl 112 192 0 182 1 0 1 1 0 8 0 shmpl 112 117 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 5278 0 3817 92 0 92 92 0 8 0 ffsino 272 5278 0 3817 98 0 98 98 0 8 0 nchpl 144 9068 0 8554 63 40 23 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 32830 0 32830 5 4 1 2 0 8 1 percpumem 16 68 0 25 1 0 1 1 0 8 0 vmpool 696 93 0 93 4 4 0 1 0 8 0 kstatmem 264 74 0 50 2 0 2 2 0 8 0 scxspl 216 25038 0 25038 11 10 1 8 1 8 1 plimitpl 152 258 0 242 1 0 1 1 0 8 0 sigapl 424 2984 0 2916 9 1 8 8 0 8 0 futexpl 64 21114 0 21112 1 0 1 1 0 8 0 knotepl 120 358 0 0 11 0 11 11 0 8 0 kqueuepl 216 783 0 775 17 16 1 7 0 8 0 pipepl 320 1222 0 1194 29 21 8 11 0 8 5 fdescpl 496 2946 0 2918 5 1 4 5 0 8 0 filepl 152 26250 0 26007 54 36 18 24 0 8 8 lockfpl 104 1534 0 1532 5 3 2 2 0 8 1 lockfspl 48 581 0 579 1 0 1 1 0 8 0 sessionpl 144 30 0 13 1 0 1 1 0 8 0 pgrppl 48 44 0 27 1 0 1 1 0 8 0 ucredpl 104 3586 0 3572 1 0 1 1 0 8 0 zombiepl 144 2919 0 2916 2 1 1 1 0 8 0 processpl 1072 2984 0 2916 5 0 5 5 0 8 0 procpl 680 7558 0 7470 13 4 9 9 0 8 0 sosppl 168 12 0 12 3 3 0 1 0 8 0 sockpl 488 9801 0 9768 281 260 21 45 0 8 16 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 8 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 20 0 0 3 0 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 275 0 0 35 1 34 35 0 8 0 mtagpl 96 353 0 0 8 0 8 8 0 8 0 mbufpl 256 5683 0 0 351 0 351 351 0 8 0 bufpl 288 7685 0 1356 453 0 453 453 0 8 0 anonpl 24 402645 0 389139 131 37 94 107 0 186 0 amapchunkpl 152 89966 0 89065 57 16 41 47 0 158 0 amappl16 200 9109 0 8711 51 24 27 37 0 8 0 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 215 0 199 2 1 1 2 0 8 0 amappl13 176 12 0 11 1 0 1 1 0 8 0 amappl12 168 3707 0 3678 3 1 2 2 0 8 0 amappl11 160 65 0 51 1 0 1 1 0 8 0 amappl10 152 107 0 95 1 0 1 1 0 8 0 amappl9 144 220 0 218 1 0 1 1 0 8 0 amappl8 136 318 0 226 4 0 4 4 0 8 0 amappl7 128 71 0 58 2 0 2 2 0 8 0 amappl6 120 297 0 275 2 1 1 2 0 8 0 amappl5 112 277 0 264 1 0 1 1 0 8 0 amappl4 104 657 0 612 3 1 2 3 0 8 0 amappl3 96 17957 0 17869 4 1 3 3 0 8 0 amappl2 88 3306 0 3231 3 1 2 3 0 8 0 amappl1 80 19397 0 18849 23 10 13 23 0 8 0 amappl 88 27748 0 27502 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 72 119 0 6 3 0 3 3 0 8 0 uaddrrnd 24 3039 0 3011 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3039 0 3011 1 0 1 1 0 8 0 vmmpekpl 168 29541 0 29485 3 0 3 3 0 8 0 vmmpepl 168 195128 0 192804 190 58 132 141 0 357 20 vmsppl 464 3038 0 3011 5 0 5 5 0 8 0 rwobjpl 56 59160 0 51589 112 4 108 111 0 8 0 pdppl 4096 6086 0 6022 258 188 70 84 0 8 6 pvpl 32 1012208 0 992754 378 199 179 340 0 265 8 pmappl 248 3038 0 3011 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1433 0 277 34 0 34 34 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace witness_checkorder(fffffd806f479cb8,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f479ca8) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff800021280570,fffffd806f479ca8,fffffd806f479d30,4,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff800021280570,4) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff800021280570) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff800021280570,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff800021280570,ffff80002e461df0,ffff80002e461e40) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e461ec0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e461ec0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f437676b420, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800020d58ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82c82a60) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c82a60) at __mp_lock+0x133 sys/kern/kern_lock.c:147 vn_ioctl(fffffd8067e2d098,80044b02,ffff80002e4711f0,ffff800021281d58) at vn_ioctl+0x45 sys/kern/vfs_vnops.c:508 sys_ioctl(ffff800021281d58,ffff80002e471300,ffff80002e471350) at sys_ioctl+0x4a2 syscall(ffff80002e4713d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4713d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd99e15f1630, count: 6 ddb{1}> trace x86_ipi_db(ffff800020d58ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82c82a60) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c82a60) at __mp_lock+0x133 sys/kern/kern_lock.c:147 vn_ioctl(fffffd8067e2d098,80044b02,ffff80002e4711f0,ffff800021281d58) at vn_ioctl+0x45 sys/kern/vfs_vnops.c:508 sys_ioctl(ffff800021281d58,ffff80002e471300,ffff80002e471350) at sys_ioctl+0x4a2 syscall(ffff80002e4713d0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4713d0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd99e15f1630, count: -9