uvm_fault(0xfffffd80670e7ab0, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rw_enter+0xf0: movq 0(%r14),%r13 TID PID UID PRFLAGS PFLAGS CPU COMMAND *520593 49052 0 0 0x4000000 0 syz-executor.3 rw_enter(0,1) at rw_enter+0xf0 sys/kern/kern_rwlock.c:254 uvm_vnp_terminate(fffffd806bfbd438) at uvm_vnp_terminate+0x25 sys/uvm/uvm_vnode.c:426 vclean(fffffd806bfbd438,8,ffff8000217a4d28) at vclean+0x106 sys/kern/vfs_subr.c:1063 vgonel(fffffd806bfbd438,ffff8000217a4d28) at vgonel+0x79 sys/kern/vfs_subr.c:1175 checkalias(fffffd807e7a4e68,0,ffff8000006d9000) at checkalias+0x13c ffs_vinit(ffff8000006d9000,ffff8000217d88f0) at ffs_vinit+0x10c sys/ufs/ffs/ffs_subr.c:266 ffs_vget(ffff8000006d9000,673f,ffff8000217d89c8) at ffs_vget+0x375 sys/ufs/ffs/ffs_vfsops.c:1409 ufs_lookup() at ufs_lookup+0x1229 sys/ufs/ufs/ufs_lookup.c:582 VOP_LOOKUP(fffffd8071e2bd98,ffff8000217d8e28,ffff8000217d8e58) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000217d8df8) at vfs_lookup+0x6cc sys/kern/vfs_lookup.c:560 namei(ffff8000217d8df8) at namei+0x36a sys/kern/vfs_lookup.c:244 vn_open(ffff8000217d8df8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:140 doopenat(ffff8000217a4d28,ffffff9c,200000c0,0,0,ffff8000217d8fe0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff8000217d9050) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 end trace frame: 0xffff8000217d90d0, count: 0 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd80670e7ab0, 0x0, 0, 1) -> e ddb> trace rw_enter(0,1) at rw_enter+0xf0 sys/kern/kern_rwlock.c:254 uvm_vnp_terminate(fffffd806bfbd438) at uvm_vnp_terminate+0x25 sys/uvm/uvm_vnode.c:426 vclean(fffffd806bfbd438,8,ffff8000217a4d28) at vclean+0x106 sys/kern/vfs_subr.c:1063 vgonel(fffffd806bfbd438,ffff8000217a4d28) at vgonel+0x79 sys/kern/vfs_subr.c:1175 checkalias(fffffd807e7a4e68,0,ffff8000006d9000) at checkalias+0x13c ffs_vinit(ffff8000006d9000,ffff8000217d88f0) at ffs_vinit+0x10c sys/ufs/ffs/ffs_subr.c:266 ffs_vget(ffff8000006d9000,673f,ffff8000217d89c8) at ffs_vget+0x375 sys/ufs/ffs/ffs_vfsops.c:1409 ufs_lookup() at ufs_lookup+0x1229 sys/ufs/ufs/ufs_lookup.c:582 VOP_LOOKUP(fffffd8071e2bd98,ffff8000217d8e28,ffff8000217d8e58) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000217d8df8) at vfs_lookup+0x6cc sys/kern/vfs_lookup.c:560 namei(ffff8000217d8df8) at namei+0x36a sys/kern/vfs_lookup.c:244 vn_open(ffff8000217d8df8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:140 doopenat(ffff8000217a4d28,ffffff9c,200000c0,0,0,ffff8000217d8fe0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff8000217d9050) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac5477e0690, count: -15 ddb> show registers rdi 0 rsi 0 rbp 0xffff8000217d86e0 rbx 0x5 rdx 0xffff800000bdac80 rcx 0xffff8000217a4d2c rax 0xffff8000217a4d28 r8 0xffffffffffffffff r9 0xfffffd807f7d7958 r10 0xf7d321fba3286f08 r11 0x657c41c75d0cc7 r12 0xffffffffffffffff r13 0x1 r14 0 r15 0xffff8000217d8648 rip 0xffffffff81197c30 rw_enter+0xf0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000217d8640 ss 0x10 rw_enter+0xf0: movq 0(%r14),%r13 ddb> show proc PROC (syz-executor.3) pid=520593 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff8000217a57a8,0xffffffff82a15c18 process=0xffff80002801efe0 user=0xffff8000217d4000, vmspace=0xfffffd80670e7ab0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 49052 214492 30858 0 2 0 syz-executor.3 *49052 520593 30858 0 7 0x4000000 syz-executor.3 43753 511583 77703 0 2 0x480 syz-executor.6 43753 11351 77703 0 3 0x4000080 fsleep syz-executor.6 33921 258492 34205 0 2 0x480 syz-executor.7 33921 45561 34205 0 3 0x4000080 fsleep syz-executor.7 33921 243209 34205 0 3 0x4000080 fsleep syz-executor.7 33921 182642 34205 0 3 0x4000080 fsleep syz-executor.7 29193 175980 64392 0 2 0x482 syz-executor.4 14605 269267 64392 0 3 0x82 piperd syz-executor.2 76297 369633 0 0 3 0x14200 acct acct 62042 369713 0 0 3 0x14280 nfsidl nfsio 28474 403357 0 0 3 0x14280 nfsidl nfsio 92505 402506 0 0 3 0x14280 nfsidl nfsio 54230 18057 0 0 3 0x14280 nfsidl nfsio 27075 312800 0 0 3 0x14280 nfsidl nfsio 88942 513614 0 0 3 0x14280 nfsidl nfsio 9868 492213 0 0 3 0x14280 nfsidl nfsio 55876 161991 0 0 3 0x14280 nfsidl nfsio 22982 374208 0 0 3 0x14280 nfsidl nfsio 90739 91384 0 0 3 0x14280 nfsidl nfsio 23554 456234 0 0 3 0x14280 nfsidl nfsio 31267 513174 0 0 3 0x14280 nfsidl nfsio 24758 209487 0 0 3 0x14280 nfsidl nfsio 11316 150075 0 0 3 0x14280 nfsidl nfsio 95325 342567 0 0 3 0x14280 nfsidl nfsio 54090 176874 0 0 3 0x14280 nfsidl nfsio 67203 368406 0 0 3 0x14280 nfsidl nfsio 18876 350021 0 0 3 0x14280 nfsidl nfsio 44366 157793 0 0 3 0x14280 nfsidl nfsio 90431 242733 0 0 3 0x14280 nfsidl nfsio 61987 312065 0 0 3 0x14200 bored sosplice 77703 205712 64392 0 3 0x82 nanoslp syz-executor.6 34205 411092 64392 0 2 0x482 syz-executor.7 30858 417305 64392 0 3 0x82 nanoslp syz-executor.3 56410 72774 64392 0 3 0x82 piperd syz-executor.5 57269 433767 64392 0 3 0x82 piperd syz-executor.0 38843 34764 64392 0 3 0x82 piperd syz-executor.1 64392 121688 81350 0 3 0x82 wait syz-fuzzer 64392 18488 81350 0 2 0x4000482 syz-fuzzer 64392 393267 81350 0 3 0x4000082 thrsleep syz-fuzzer 64392 257109 81350 0 3 0x4000082 wait syz-fuzzer 64392 475025 81350 0 3 0x4000082 thrsleep syz-fuzzer 64392 120287 81350 0 3 0x4000082 wait syz-fuzzer 64392 436608 81350 0 3 0x4000082 wait syz-fuzzer 64392 412992 81350 0 3 0x4000082 wait syz-fuzzer 64392 47795 81350 0 3 0x4000082 thrsleep syz-fuzzer 64392 118026 81350 0 3 0x4000082 kqread syz-fuzzer 64392 30876 81350 0 3 0x4000082 wait syz-fuzzer 64392 426114 81350 0 3 0x4000082 wait syz-fuzzer 64392 71386 81350 0 3 0x4000082 wait syz-fuzzer 64392 161221 81350 0 3 0x4000082 thrsleep syz-fuzzer 81350 121546 86941 0 3 0x10008a sigsusp ksh 86941 393042 50560 0 3 0x9a kqread sshd 9087 214840 1 0 3 0x100083 ttyin getty 50560 234347 1 0 3 0x88 kqread sshd 60538 460944 51411 73 2 0x1100010 syslogd 51411 505724 1 0 3 0x100082 netio syslogd 71706 297011 1 0 3 0x100080 kqread resolvd 79595 109810 95779 77 3 0x100092 kqread dhcpleased 71315 163353 95779 77 3 0x100092 kqread dhcpleased 95779 290568 1 0 3 0x80 kqread dhcpleased 32903 343475 0 0 3 0x14200 bored smr 38887 15759 0 0 2 0x14200 zerothread 18788 457630 0 0 3 0x14200 aiodoned aiodoned 84706 353956 0 0 3 0x14200 syncer update 43593 320345 0 0 3 0x14200 cleaner cleaner 77881 188441 0 0 3 0x14200 reaper reaper 87209 498081 0 0 3 0x14200 pgdaemon pagedaemon 94428 139029 0 0 3 0x14200 bored viomb 68817 212917 0 0 3 0x40014200 acpi0 acpi0 95093 209414 0 0 3 0x14200 bored softnet 15436 346256 0 0 3 0x14200 bored softnet 27271 414819 0 0 3 0x14200 bored softnet 98322 338089 0 0 3 0x14200 bored softnet 76881 237369 0 0 3 0x14200 bored systqmp 36290 92153 0 0 3 0x14200 bored systq 70881 271754 0 0 3 0x40014200 bored softclock 15334 202462 0 0 3 0x40014200 idle0 1 155147 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10199 6674K 7340K 78643K 42741 0 pcb 13 12K 14K 78643K 258 0 rtable 247 9K 10K 78643K 4673 0 ifaddr 92 19K 20K 78643K 1588 0 counters 27 17K 17K 78643K 36 0 ioctlops 0 0K 4K 78643K 10312 0 iov 0 0K 20K 78643K 423 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1402 88K 88K 78643K 8160 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 15 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 154 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 65K 78643K 6794 0 sigio 0 0K 0K 78643K 98 0 proc 58 59K 83K 78643K 588 0 subproc 104 6K 6K 78643K 143 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 3064 0 in_multi 99 6K 7K 78643K 166 0 ether_multi 1 0K 0K 78643K 15 0 mrt 1 0K 0K 78643K 10 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 2K 78643K 1324 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 253 120K 139K 78643K 36081 0 UVM aobj 20 2K 2K 78643K 20 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 22 0 NDP 11 0K 1K 78643K 42 0 temp 123 4722K 4795K 78643K 35807 0 kqueue 12 18K 24K 78643K 203 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 136 0 133 3 2 1 3 0 8 0 rtentry 112 147 0 37 4 0 4 4 0 8 0 unpcb 144 1272 0 1259 16 15 1 6 0 8 0 syncache 296 10 0 10 4 4 0 1 0 8 0 sackhl 24 3 0 3 3 2 1 1 0 8 1 tcpqe 32 31 0 31 2 2 0 1 0 8 0 tcpcb 768 1345 0 1341 63 61 2 9 0 8 1 arp 88 24 0 6 1 0 1 1 0 8 0 inpcb 336 1902 0 1895 45 44 1 7 0 8 0 nd6 48 33 0 9 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 pfrktable 1344 2101 0 2095 2 1 1 1 0 8 0 pfanchor 1280 345 0 98 22 1 21 22 0 8 0 pftag 88 38 0 29 1 0 1 1 0 8 0 pfrule 1360 2960 0 2679 24 0 24 24 0 8 0 rttmr 136 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 587 0 132 29 0 29 29 0 8 0 art_table 32 588 0 132 4 0 4 4 0 8 0 art_node 16 146 0 46 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 7 1 0 1 1 0 8 0 semapl 112 148 0 138 1 0 1 1 0 8 0 shmpl 112 17 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8855 0 7414 91 0 91 91 0 8 0 ffsino 240 8855 0 7414 85 0 85 85 0 8 0 nchpl 144 17440 0 15809 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 uvmvnodes: pool(0xffffffff82a90bb0:uvmvnodes): page inconsistency: page 0x0; at page head addr 0xfffffd8064358f90 (p 0xfffffd8064358000) vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 65241 0 65240 5 4 1 2 0 8 0 vcpupl 2048 4 0 2 1 0 1 1 0 8 0 vmpool 536 4 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 977 0 955 2 1 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 51275 0 51275 10 9 1 8 0 8 1 plimitpl 152 1251 0 1236 1 0 1 1 0 8 0 sigapl 424 7100 0 7037 8 0 8 8 0 8 0 futexpl 64 69337 0 69333 3 2 1 1 0 8 0 knotepl 120 67359 0 67279 24 21 3 11 0 8 0 kqueuepl 184 3121 0 3113 48 47 1 4 0 8 0 pipepl 288 762 0 734 16 13 3 7 0 8 0 fdescpl 432 7062 0 7038 8 4 4 4 0 8 0 filepl 120 44519 0 44282 80 71 9 15 0 8 1 lockfpl 104 908 0 906 2 1 1 2 0 8 0 lockfspl 48 204 0 202 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 112 0 96 1 0 1 1 0 8 0 ucredpl 104 4473 0 4463 1 0 1 1 0 8 0 zombiepl 144 7038 0 7037 2 1 1 1 0 8 0 processpl 1000 7100 0 7037 9 0 9 9 0 8 0 procpl 672 16609 0 16528 22 13 9 9 0 8 1 sosppl 168 14 0 14 6 6 0 1 0 8 0 sockpl 456 3314 0 3291 102 98 4 21 0 8 1 mcl64k 65536 81 0 81 16 15 1 1 0 8 1 mcl16k 16384 25 0 25 12 11 1 1 0 8 1 mcl12k 12288 128 0 128 15 14 1 1 0 8 1 mcl9k 9216 31 0 31 14 13 1 1 0 8 1 mcl8k 8192 465 0 465 18 17 1 1 0 8 1 mcl4k 4096 1113 0 1113 5 4 1 1 0 8 1 mcl2k2 2112 58 0 58 20 19 1 1 0 8 1 mcl2k 2048 85840 0 84728 155 15 140 140 0 8 0 mtagpl 96 7047 0 5038 54 4 50 50 0 8 0 mbufpl 256 171733 0 169491 183 40 143 143 0 8 0 bufpl 288 11784 0 5379 458 0 458 458 0 8 0 anonpl 24 1509693 0 1493431 160 30 130 132 0 188 25 amapchunkpl 152 103652 0 103023 46 9 37 38 0 158 10 amappl16 200 35902 0 35360 39 8 31 32 0 8 0 amappl15 192 946 0 937 1 0 1 1 0 8 0 amappl14 184 870 0 864 1 0 1 1 0 8 0 amappl13 176 2399 0 2390 1 0 1 1 0 8 0 amappl12 168 11 0 5 1 0 1 1 0 8 0 amappl11 160 41 0 29 1 0 1 1 0 8 0 amappl10 152 1055 0 1050 1 0 1 1 0 8 0 amappl9 144 2564 0 2551 1 0 1 1 0 8 0 amappl8 136 1554 0 1488 3 0 3 3 0 8 0 amappl7 128 1014 0 997 1 0 1 1 0 8 0 amappl6 120 1892 0 1871 2 1 1 2 0 8 0 amappl5 112 4656 0 4646 1 0 1 1 0 8 0 amappl4 104 1729 0 1705 2 0 2 2 0 8 0 amappl3 96 21458 0 21410 2 0 2 2 0 8 0 amappl2 88 9603 0 9541 3 1 2 3 0 8 0 amappl1 80 164167 0 163516 22 6 16 21 0 8 0 amappl 88 35537 0 35387 5 1 4 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 19 0 0 1 0 1 1 0 8 0 uaddrrnd 24 7066 0 7040 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7066 0 7040 1 0 1 1 0 8 0 vmmpekpl 168 47442 0 47387 3 0 3 3 0 8 0 vmmpepl 168 679851 0 677433 193 67 126 138 0 357 3 vmsppl 272 7065 0 7040 3 0 3 3 0 8 0 rwobjpl 24 178802 0 171268 48 1 47 47 0 8 0 pdppl 4096 14138 0 14082 302 236 66 68 0 8 10 pvpl 32 3131850 0 3110447 421 175 246 251 0 265 56 pmappl 216 7065 0 7040 3 1 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1455 0 401 31 0 31 31 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace rw_enter(0,1) at rw_enter+0xf0 sys/kern/kern_rwlock.c:254 uvm_vnp_terminate(fffffd806bfbd438) at uvm_vnp_terminate+0x25 sys/uvm/uvm_vnode.c:426 vclean(fffffd806bfbd438,8,ffff8000217a4d28) at vclean+0x106 sys/kern/vfs_subr.c:1063 vgonel(fffffd806bfbd438,ffff8000217a4d28) at vgonel+0x79 sys/kern/vfs_subr.c:1175 checkalias(fffffd807e7a4e68,0,ffff8000006d9000) at checkalias+0x13c ffs_vinit(ffff8000006d9000,ffff8000217d88f0) at ffs_vinit+0x10c sys/ufs/ffs/ffs_subr.c:266 ffs_vget(ffff8000006d9000,673f,ffff8000217d89c8) at ffs_vget+0x375 sys/ufs/ffs/ffs_vfsops.c:1409 ufs_lookup() at ufs_lookup+0x1229 sys/ufs/ufs/ufs_lookup.c:582 VOP_LOOKUP(fffffd8071e2bd98,ffff8000217d8e28,ffff8000217d8e58) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000217d8df8) at vfs_lookup+0x6cc sys/kern/vfs_lookup.c:560 namei(ffff8000217d8df8) at namei+0x36a sys/kern/vfs_lookup.c:244 vn_open(ffff8000217d8df8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:140 doopenat(ffff8000217a4d28,ffffff9c,200000c0,0,0,ffff8000217d8fe0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff8000217d9050) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac5477e0690, count: -15 ddb> machine ddbcpu 1 No such command ddb> trace rw_enter(0,1) at rw_enter+0xf0 sys/kern/kern_rwlock.c:254 uvm_vnp_terminate(fffffd806bfbd438) at uvm_vnp_terminate+0x25 sys/uvm/uvm_vnode.c:426 vclean(fffffd806bfbd438,8,ffff8000217a4d28) at vclean+0x106 sys/kern/vfs_subr.c:1063 vgonel(fffffd806bfbd438,ffff8000217a4d28) at vgonel+0x79 sys/kern/vfs_subr.c:1175 checkalias(fffffd807e7a4e68,0,ffff8000006d9000) at checkalias+0x13c ffs_vinit(ffff8000006d9000,ffff8000217d88f0) at ffs_vinit+0x10c sys/ufs/ffs/ffs_subr.c:266 ffs_vget(ffff8000006d9000,673f,ffff8000217d89c8) at ffs_vget+0x375 sys/ufs/ffs/ffs_vfsops.c:1409 ufs_lookup() at ufs_lookup+0x1229 sys/ufs/ufs/ufs_lookup.c:582 VOP_LOOKUP(fffffd8071e2bd98,ffff8000217d8e28,ffff8000217d8e58) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000217d8df8) at vfs_lookup+0x6cc sys/kern/vfs_lookup.c:560 namei(ffff8000217d8df8) at namei+0x36a sys/kern/vfs_lookup.c:244 vn_open(ffff8000217d8df8,1,0) at vn_open+0x105 sys/kern/vfs_vnops.c:140 doopenat(ffff8000217a4d28,ffffff9c,200000c0,0,0,ffff8000217d8fe0) at doopenat+0x26a sys/kern/vfs_syscalls.c:1127 syscall(ffff8000217d9050) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac5477e0690, count: -15