uvm_fault(0xffffffff839367d8, 0xffff800029372004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_lookup+0x5e1: movzwl 0x4(%r15,%rbx,1),%r14d TID PID UID PRFLAGS PFLAGS CPU COMMAND 97643 58069 0 0 0 0 syz-executor *221263 58069 0 0 0x4000000 1K syz-executor ufs_lookup() at ufs_lookup+0x5e1 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd806ba2d7d0,ffff80002a3b67a0,ffff80002a3b67d0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a3b6770) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002a3b6770) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff8000ffff4028,ffffff9c,200000000200,1000,d02) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1590 syscall(ffff80002a3b6970) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3b6970) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x541516f29f0, count: 8 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: uvm_fault(0xffffffff839367d8, 0xffff800029372004, 0, 1) -> d ddb{1}> trace ufs_lookup() at ufs_lookup+0x5e1 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd806ba2d7d0,ffff80002a3b67a0,ffff80002a3b67d0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a3b6770) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002a3b6770) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff8000ffff4028,ffffff9c,200000000200,1000,d02) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1590 syscall(ffff80002a3b6970) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3b6970) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x541516f29f0, count: -7 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a3b6510 rbx 0 rdx 0xffff8000014805c0 rcx 0xffffffff rax 0xfffffd807c0fa158 r8 0xffffffffffffffff r9 0xfffffd807f7d25b0 r10 0xab1adfab60b98f8b r11 0xec7dd30d1949ba7e r12 0 r13 0xfffffd806dd999f0 r14 0 r15 0xffff800029372000 rip 0xffffffff82579681 ufs_lookup+0x5e1 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a3b6400 ss 0x10 ufs_lookup+0x5e1: movzwl 0x4(%r15,%rbx,1),%r14d ddb{1}> show proc PROC (syz-executor) tid=221263 pid=58069 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff5218,0xffffffff839d9638 process=0xffff8000fffee048 user=0xffff80002a3b1000, vmspace=0xfffffd806bc02ad0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58069 97643 75587 0 7 0 syz-executor *58069 221263 75587 0 7 0x4000000 syz-executor 89955 274604 69499 0 2 0 syz-executor 89955 390297 69499 0 3 0x4000080 fsleep syz-executor 93236 417947 617 0 2 0 syz-executor 93236 391502 617 0 3 0x4000080 fsleep syz-executor 53842 335887 38633 0 2 0 syz-executor 53842 47393 38633 0 3 0x4000080 fsleep syz-executor 69499 247011 29194 0 3 0x82 nanoslp syz-executor 66426 187497 0 0 3 0x14200 acct acct 71893 54974 1 0 3 0x100083 ttyin getty 617 463998 29194 0 3 0x82 nanoslp syz-executor 21514 113351 29194 0 3 0x82 wait syz-executor 80739 425110 29194 0 3 0x82 wait syz-executor 38633 109219 29194 0 3 0x82 nanoslp syz-executor 98880 231098 0 0 3 0x14200 bored sosplice 98935 27972 0 0 3 0x14280 nfsidl nfsio 92233 72927 0 0 3 0x14280 nfsidl nfsio 24868 93018 0 0 3 0x14280 nfsidl nfsio 58067 31995 0 0 3 0x14280 nfsidl nfsio 33846 34045 0 0 3 0x14280 nfsidl nfsio 97809 446438 0 0 3 0x14280 nfsidl nfsio 80390 208552 0 0 3 0x14280 nfsidl nfsio 94506 386915 0 0 3 0x14280 nfsidl nfsio 22553 441374 0 0 3 0x14280 nfsidl nfsio 85587 370182 0 0 3 0x14280 nfsidl nfsio 7764 108862 0 0 3 0x14280 nfsidl nfsio 79803 17232 0 0 3 0x14280 nfsidl nfsio 16216 424889 0 0 3 0x14280 nfsidl nfsio 67681 479943 0 0 3 0x14280 nfsidl nfsio 76273 204426 0 0 3 0x14280 nfsidl nfsio 15032 216339 0 0 3 0x14280 nfsidl nfsio 35829 293685 0 0 3 0x14280 nfsidl nfsio 54729 298424 0 0 3 0x14280 nfsidl nfsio 13430 382801 0 0 3 0x14280 nfsidl nfsio 27208 161377 0 0 3 0x14280 nfsidl nfsio 75587 68467 29194 0 3 0x82 nanoslp syz-executor 29194 44922 13153 0 3 0x82 wait syz-executor 13153 56771 47491 0 3 0x10008a sigsusp ksh 47491 158893 54896 0 3 0x98 kqread sshd-session 54896 365387 28677 0 3 0x92 kqread sshd-session 28677 499987 1 0 3 0x88 kqread sshd 77617 333603 35922 74 3 0x1100092 bpf pflogd 35922 162881 1 0 3 0x80 sbwait pflogd 40883 32947 13418 73 3 0x1100090 kqread syslogd 13418 270569 1 0 3 0x100082 sbwait syslogd 56065 491955 1 0 3 0x100080 kqread resolvd 28907 516342 4723 77 3 0x100092 kqread dhcpleased 92178 284114 4723 77 3 0x100092 kqread dhcpleased 4723 337959 1 0 3 0x80 kqread dhcpleased 36446 467806 0 0 3 0x14200 bored smr 88115 319834 0 0 3 0x14200 pgzero zerothread 83940 195677 0 0 3 0x14200 aiodoned aiodoned 53667 102950 0 0 3 0x14200 syncer update 19370 226366 0 0 3 0x14200 cleaner cleaner 96860 368518 0 0 3 0x14200 reaper reaper 99992 465026 0 0 3 0x14200 pgdaemon pagedaemon 15034 522018 0 0 3 0x14200 bored viomb 28386 500396 0 0 3 0x40014200 acpi0 acpi0 34914 295933 0 0 3 0x40014200 idle1 96054 105162 0 0 3 0x14200 bored softnet3 77183 402654 0 0 3 0x14200 bored softnet2 11255 257581 0 0 3 0x14200 bored softnet1 67476 290295 0 0 3 0x14200 bored softnet0 78114 378401 0 0 3 0x14200 bored systqmp 97312 224422 0 0 3 0x14200 bored systq 20264 507593 0 0 3 0x14200 tmoslp softclockmp 38159 101039 0 0 3 0x40014200 tmoslp softclock 61636 204471 0 0 3 0x40014200 idle0 1 2845 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 58069 (syz-executor) thread 0xffff8000ffff4028 (221263) exclusive rrwlock inode r = 0 (0xfffffd806dd99a90) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1590 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839fc958) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #1 syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10236 11053K 11478K 166960K 14306 0 pcb 18 16K 17K 166960K 469 0 rtable 257 13K 14K 166960K 1091 0 pf 44 19K 23K 166960K 331 0 ifaddr 45 8K 9K 166960K 200 0 ifgroup 66 2K 3K 166960K 369 0 sysctl 4 1K 1K 166960K 12 0 counters 68 36K 37K 166960K 490 0 ioctlops 0 0K 4K 166960K 2198 0 iov 0 0K 24K 166960K 414 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1502 94K 96K 166960K 3728 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 24K 28K 166960K 58 0 VM map 2 1K 1K 166960K 2 0 sem 25 17K 17K 166960K 186 0 dirhash 12 2K 3K 166960K 81 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 2889 0 sigio 0 0K 0K 166960K 99 0 proc 72 91K 128K 166960K 1085 0 subproc 72 4K 4K 166960K 147 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 675 0 in_multi 89 6K 7K 166960K 302 0 ether_multi 1 0K 0K 166960K 46 0 mrt 2 0K 0K 166960K 20 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 1071 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 234 168K 183K 166960K 27181 0 UVM aobj 207 9K 10K 166960K 217 0 pinsyscall 41 82K 104K 166960K 4247 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 136 0 NDP 14 0K 2K 166960K 137 0 temp 79 8692K 8828K 166960K 99257 0 kqueue 13 20K 30K 166960K 533 0 SYN cache 2 10K 18K 166960K 3 0 ddb{1}> 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 120 301 0 298 4 2 2 3 0 8 1 rtentry 168 287 0 181 5 0 5 5 0 8 0 unpcb 144 2374 0 2357 16 15 1 4 0 8 0 syncache 336 10 0 10 5 4 1 1 0 8 1 tcpqe 32 2 15 2 1 1 0 1 0 8 0 tcpcb 808 981 0 974 24 16 8 8 0 8 7 arp 120 49 0 27 1 0 1 1 0 8 0 inpcb 376 3122 0 3111 34 26 8 15 0 8 6 nd6 136 57 0 30 2 0 2 2 0 8 0 pkpcb 40 21 0 21 5 4 1 1 0 8 1 kcovpl 48 16 0 8 1 0 1 1 0 8 0 ppxss 1168 166 0 166 1 0 1 1 0 8 1 pppxif 1480 90 0 90 5 4 1 1 0 8 1 pfstscr 40 8 0 7 1 0 1 1 0 8 0 pffrag 232 12 0 6 1 0 1 1 0 482 0 pffrnode 88 11 0 6 1 0 1 1 0 8 0 pffrent 40 20 0 14 1 0 1 1 0 8 0 pfosfp 40 1430 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pfanchor 1288 5 0 0 1 0 1 1 0 8 0 pftag 88 4 0 1 1 0 1 1 0 8 0 pfstitem 24 67 0 56 1 0 1 1 0 8 0 pfstkey 128 74 0 58 2 0 2 2 0 8 0 pfstate 376 66 0 57 5 1 4 5 0 8 0 pfrule 1344 81 0 32 7 2 5 5 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1055 0 623 36 6 30 30 0 8 0 art_table 32 1059 0 623 4 0 4 4 0 8 0 art_node 16 271 0 179 1 0 1 1 0 8 0 sysvmsgpl 40 103 0 102 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 179 0 156 1 0 1 1 0 8 0 shmpl 112 214 0 10 6 0 6 6 0 8 0 dirhash 1024 63 0 46 3 0 3 3 0 8 0 dino2pl 256 6798 0 5273 96 0 96 96 0 8 0 ffsino 280 6798 0 5273 110 0 110 110 0 8 0 nchpl 144 10940 0 10309 64 37 27 64 0 8 0 rtmask 32 21 0 21 3 2 1 1 0 8 1 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 41891 0 41890 3 2 1 2 0 8 0 percpumem 16 259 0 211 1 0 1 1 0 8 0 kstatmem 264 210 0 182 6 3 3 3 0 8 1 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 15 0 15 7 6 1 1 0 8 1 scxspl 216 35832 0 35832 13 12 1 8 1 8 1 plimitpl 152 395 0 377 1 0 1 1 0 8 0 sigapl 424 3214 0 3144 10 1 9 9 0 8 0 futexpl 64 43791 0 43788 1 0 1 1 0 8 0 knotepl 120 615 0 0 18 0 18 18 0 8 0 kqueuepl 216 1081 0 1072 11 6 5 5 0 8 4 pipepl 328 482 0 455 3 0 3 3 0 8 0 fdescpl 504 3170 0 3140 5 0 5 5 0 8 0 filepl 152 23037 0 22822 30 16 14 16 0 8 3 lockfpl 104 1214 0 1212 2 1 1 2 0 8 0 lockfspl 48 381 0 379 1 0 1 1 0 8 0 sessionpl 144 39 0 30 1 0 1 1 0 8 0 pgrppl 48 141 0 124 1 0 1 1 0 8 0 ucredpl 104 3697 0 3684 1 0 1 1 0 8 0 zombiepl 144 3148 0 3144 2 1 1 1 0 8 0 processpl 1176 3214 0 3144 6 0 6 6 0 8 0 procpl 656 7297 0 7223 9 1 8 8 0 8 0 srpgc 96 15 0 15 6 5 1 1 0 8 1 sosppl 168 14 0 14 4 4 0 1 0 8 0 sockpl 688 5850 0 5820 46 36 10 16 0 8 6 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 78 0 0 8 2 6 8 0 8 0 mtagpl 96 122 0 0 3 0 3 3 0 8 0 mbufpl 256 651 0 0 40 0 40 40 0 8 0 bufpl 280 11013 0 4859 440 0 440 440 0 8 0 anonpl 24 388992 0 385504 97 48 49 71 0 184 8 amapchunkpl 152 102065 0 101597 50 21 29 35 0 158 7 amappl16 200 7447 0 7412 67 57 10 28 0 8 3 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 147 0 135 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 4000 0 3970 4 2 2 3 0 8 0 amappl11 160 52 0 37 1 0 1 1 0 8 0 amappl10 152 33 0 33 2 1 1 1 0 8 1 amappl9 144 239 0 239 1 1 0 1 0 8 0 amappl8 136 31 0 27 1 0 1 1 0 8 0 amappl7 128 152 0 140 1 0 1 1 0 8 0 amappl6 120 278 0 274 1 0 1 1 0 8 0 amappl5 112 160 0 150 1 0 1 1 0 8 0 amappl4 104 393 0 370 1 0 1 1 0 8 0 amappl3 96 19105 0 18996 5 1 4 4 0 8 0 amappl2 88 834 0 769 2 0 2 2 0 8 0 amappl1 80 21821 0 21220 16 1 15 15 0 8 0 amappl 88 25709 0 25550 5 0 5 5 0 92 0 dma32768 32768 2 0 2 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 255 0 255 3 3 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 72 216 0 10 4 0 4 4 0 8 0 uaddrrnd 24 3170 0 3140 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3170 0 3140 1 0 1 1 0 8 0 vmmpekpl 168 23139 0 23078 4 0 4 4 0 8 0 vmmpepl 168 197780 0 195806 132 33 99 112 0 357 3 vmsppl 456 3169 0 3140 6 1 5 5 0 8 0 rwobjpl 64 53477 0 46408 122 4 118 120 0 8 0 pdppl 4096 6348 0 6280 130 58 72 86 0 8 4 pvpl 32 20027 0 0 161 0 161 161 0 265 0 pmappl 248 3169 0 3140 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 385 0 98 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837b0ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839fc750) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839fc750) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7078e1db0820, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837b0ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839fc750) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839fc750) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7078e1db0820, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ufs_lookup+0x5e1: movzwl 0x4(%r15,%rbx,1),%r14d ufs_lookup() at ufs_lookup+0x5e1 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd806ba2d7d0,ffff80002a3b67a0,ffff80002a3b67d0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a3b6770) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002a3b6770) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff8000ffff4028,ffffff9c,200000000200,1000,d02) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1590 syscall(ffff80002a3b6970) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3b6970) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x541516f29f0, count: 8 ddb{1}> trace ufs_lookup() at ufs_lookup+0x5e1 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd806ba2d7d0,ffff80002a3b67a0,ffff80002a3b67d0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a3b6770) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002a3b6770) at namei+0x7aa sys/kern/vfs_lookup.c:250 domknodat(ffff8000ffff4028,ffffff9c,200000000200,1000,d02) at domknodat+0xb4 sys/kern/vfs_syscalls.c:1590 syscall(ffff80002a3b6970) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3b6970) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x541516f29f0, count: -7