uvm_fault(0xfffffd806bf3e540, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 50928 4189 0 0 0 0 syz-executor *520028 23258 0 0 0x4000000 1K syz-executor ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a05c528,ffff800034d946e0,ffff800034d94630) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800034d946e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800034d946e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d1ff67ffd0, count: 10 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(0xfffffd806bf3e540, 0xf, 0, 1) -> e ddb{1}> trace ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a05c528,ffff800034d946e0,ffff800034d94630) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800034d946e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800034d946e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d1ff67ffd0, count: -5 ddb{1}> show registers rdi 0xffff80002dd75000 rsi 0xcce2 __ALIGN_SIZE+0xbce2 rbp 0xffff800034d94400 rbx 0xfffffd807f7d3680 rdx 0xffff80002dd75000 rcx 0xcce1 __ALIGN_SIZE+0xbce1 rax 0xffffffff81506d83 ktrops+0x43 r8 0xfffffd806196bcc0 r9 0xfffffd807f7d3680 r10 0x7f5f3d0389ab545c r11 0xb44a138c9fd230a7 r12 0xffff80002a05c528 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9b rip 0xffffffff81506d98 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800034d94380 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=520028 pid=23258 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a05c7b0,0xffffffff834fd8e0 process=0xffff80003557e8d0 user=0xffff800034d8f000, vmspace=0xfffffd806bf3e540 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4189 50928 13946 0 7 0 syz-executor 4189 506184 13946 0 2 0x4000080 syz-executor 23258 198521 40747 0 2 0 syz-executor 23258 467331 40747 0 3 0x4000080 pipewr syz-executor *23258 520028 40747 0 7 0x4000000 syz-executor 61773 311139 2695 0 2 0 syz-executor 61773 499924 2695 0 3 0x4000080 fsleep syz-executor 61773 237322 2695 0 3 0x4000080 fsleep syz-executor 78138 273529 72433 0 2 0 syz-executor 78138 207237 72433 0 3 0x4000080 sbwait syz-executor 89662 360024 93854 0 3 0x80 nanoslp syz-executor 89662 384127 93854 0 3 0x4000080 fsleep syz-executor 89662 280799 93854 0 3 0x4000080 pipewr syz-executor 76940 116382 125 0 3 0x82 nanoslp syz-executor 40647 132076 125 0 3 0x2 biowait syz-executor 1565 60962 125 0 2 0x2 syz-executor 93854 493334 125 0 3 0x82 nanoslp syz-executor 40747 23495 125 0 3 0x82 nanoslp syz-executor 13946 168384 125 0 3 0x82 nanoslp syz-executor 72433 202587 125 0 3 0x82 nanoslp syz-executor 2695 320276 125 0 3 0x82 nanoslp syz-executor 34904 458814 0 0 3 0x14280 nfsidl nfsio 65630 499668 0 0 3 0x14280 nfsidl nfsio 56964 116425 0 0 3 0x14280 nfsidl nfsio 77201 474245 0 0 3 0x14280 nfsidl nfsio 15822 343113 0 0 3 0x14280 nfsidl nfsio 79255 63936 0 0 3 0x14280 nfsidl nfsio 69038 120031 0 0 3 0x14280 nfsidl nfsio 28246 6942 0 0 3 0x14280 nfsidl nfsio 85649 289143 0 0 3 0x14280 nfsidl nfsio 20447 117244 0 0 3 0x14280 nfsidl nfsio 45803 156075 0 0 3 0x14280 nfsidl nfsio 31968 213990 0 0 3 0x14280 nfsidl nfsio 97625 160594 0 0 3 0x14280 nfsidl nfsio 75582 452192 0 0 3 0x14280 nfsidl nfsio 90800 125440 0 0 3 0x14280 nfsidl nfsio 1303 354932 0 0 3 0x14280 nfsidl nfsio 26357 414363 0 0 3 0x14280 nfsidl nfsio 81696 447205 0 0 3 0x14280 nfsidl nfsio 85141 43560 0 0 3 0x14280 nfsidl nfsio 51144 486361 0 0 3 0x14280 nfsidl nfsio 91954 15252 1 0 3 0x100083 ttyin getty 14997 412794 0 0 3 0x14200 bored sosplice 125 496265 70394 0 2 0x2 syz-executor 70394 229252 25711 0 3 0x10008a sigsusp ksh 25711 137786 6255 0 3 0x98 kqread sshd-session 6255 2082 36867 0 3 0x92 kqread sshd-session 36867 486325 1 0 3 0x88 kqread sshd 31438 288039 46441 74 3 0x1100092 bpf pflogd 46441 374348 1 0 3 0x80 sbwait pflogd 23327 51171 23230 73 3 0x1100090 kqread syslogd 23230 46359 1 0 3 0x100082 sbwait syslogd 82986 505504 1 0 3 0x100080 kqread resolvd 23192 119801 38840 77 2 0x100012 dhcpleased 46236 495414 38840 77 3 0x100092 kqread dhcpleased 38840 427547 1 0 3 0x80 kqread dhcpleased 96246 454194 0 0 3 0x14200 bored smr 27188 58698 0 0 2 0x14200 zerothread 96775 504914 0 0 3 0x14200 aiodoned aiodoned 38466 93317 0 0 3 0x14200 syncer update 3302 248546 0 0 3 0x14200 cleaner cleaner 65804 96124 0 0 3 0x14200 reaper reaper 30381 174606 0 0 3 0x14200 pgdaemon pagedaemon 74891 59750 0 0 3 0x14200 bored viomb 96004 73460 0 0 3 0x40014200 acpi0 acpi0 14453 161387 0 0 3 0x40014200 idle1 86158 51772 0 0 3 0x14200 bored softnet3 31546 150169 0 0 3 0x14200 bored softnet2 85946 235756 0 0 3 0x14200 bored softnet1 13076 493705 0 0 3 0x14200 bored softnet0 7811 365885 0 0 3 0x14200 bored systqmp 92707 268990 0 0 3 0x14200 bored systq 87836 429886 0 0 3 0x14200 tmoslp softclockmp 16675 68257 0 0 3 0x40014200 tmoslp softclock 60603 220465 0 0 3 0x40014200 idle0 1 320179 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 23258 (syz-executor) thread 0xffff80002a05c528 (520028) Process 40647 (syz-executor) thread 0xffff800029fe71e8 (132076) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 10106K 10559K 166960K 13494 0 pcb 18 20K 23K 166960K 506 0 rtable 230 8K 9K 166960K 1542 0 pf 41 19K 22K 166960K 179 0 ifaddr 44 8K 9K 166960K 215 0 ifgroup 62 2K 2K 166960K 258 0 sysctl 4 1K 1K 166960K 6 0 counters 66 36K 37K 166960K 176 0 ioctlops 0 0K 4K 166960K 1632 0 iov 0 0K 16K 166960K 158 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1484 93K 94K 166960K 3426 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 29 0 VM map 2 1K 1K 166960K 2 0 sem 22 10K 10K 166960K 118 0 dirhash 12 2K 2K 166960K 45 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 16 57K 93K 166960K 2062 0 sigio 0 0K 0K 166960K 30 0 proc 72 91K 152K 166960K 1610 0 subproc 104 6K 6K 166960K 546 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 278 0 in_multi 99 7K 7K 166960K 525 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 133 599K 599K 166960K 133 0 exec 0 0K 1K 166960K 1114 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 244 73K 91K 166960K 18805 0 UVM aobj 114 3K 3K 166960K 124 0 pinsyscall 41 82K 104K 166960K 4033 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 84 0 NDP 13 0K 2K 166960K 155 0 temp 76 6824K 7080K 166960K 71526 0 kqueue 13 20K 28K 166960K 235 0 SYN cache 2 16K 16K 166960K 2 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 120 230 0 226 2 1 1 2 0 8 0 rtentry 112 535 0 432 4 1 3 4 0 8 0 unpcb 144 1628 0 1608 15 13 2 9 0 8 1 syncache 336 3 0 3 2 2 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpcb 808 503 0 499 10 2 8 8 0 8 7 arp 120 93 0 74 1 0 1 1 0 8 0 inpcb 336 2484 0 2474 41 32 9 12 0 8 7 nd6 136 142 0 115 1 0 1 1 0 8 0 pkpcb 40 10 0 10 4 3 1 1 0 8 1 kcovpl 48 42 0 34 1 0 1 1 0 8 0 ppxss 1168 14 0 14 4 3 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 6 0 4 1 0 1 1 0 482 0 pffrnode 88 6 0 4 1 0 1 1 0 8 0 pffrent 40 8 0 6 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 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 190 0 90 1 0 1 1 0 8 0 pfstkey 128 194 0 94 4 0 4 4 0 8 0 pfstate 376 192 0 92 10 0 10 10 0 8 0 pfrule 1344 33 0 22 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 2125 0 1678 32 4 28 29 0 8 0 art_table 32 2127 0 1678 4 0 4 4 0 8 0 art_node 16 530 0 438 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 9 2 1 1 1 0 8 0 semapl 112 111 0 91 1 0 1 1 0 8 0 shmpl 112 121 0 10 4 0 4 4 0 8 0 dirhash 1024 40 0 23 3 0 3 3 0 8 0 dino2pl 256 4187 0 2618 99 0 99 99 0 8 0 ffsino 272 4187 0 2618 107 1 106 106 0 8 0 nchpl 144 6508 0 4777 65 0 65 65 0 8 0 uvmvnodes 80 5914 0 0 121 0 121 121 0 8 0 vnodes 216 5914 0 0 329 0 329 329 0 8 0 namei 1024 25557 0 25556 3 2 1 2 0 8 0 percpumem 16 102 0 55 1 0 1 1 0 8 0 kstatmem 264 136 0 110 3 1 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 6 0 6 4 3 1 1 0 8 1 scxspl 216 41000 0 40999 11 10 1 8 1 8 0 plimitpl 152 391 0 374 1 0 1 1 0 8 0 sigapl 424 2322 0 2253 10 1 9 9 0 8 0 futexpl 64 22673 0 22670 3 2 1 1 0 8 0 knotepl 120 558 0 0 16 0 16 16 0 8 0 kqueuepl 216 512 0 503 9 7 2 5 0 8 1 pipepl 320 358 0 329 3 0 3 3 0 8 0 fdescpl 496 2279 0 2249 6 1 5 5 0 8 0 filepl 152 14430 0 14174 40 22 18 20 0 8 7 lockfpl 104 1007 0 1003 4 2 2 2 0 8 1 lockfspl 48 435 0 431 1 0 1 1 0 8 0 sessionpl 144 58 0 49 1 0 1 1 0 8 0 pgrppl 48 209 0 192 1 0 1 1 0 8 0 ucredpl 104 2192 0 2176 1 0 1 1 0 8 0 zombiepl 144 2254 0 2253 2 1 1 1 0 8 0 processpl 1160 2322 0 2253 7 1 6 6 0 8 0 procpl 648 4781 0 4704 9 1 8 8 0 8 0 srpgc 96 14 0 14 4 4 0 1 0 8 0 sosppl 168 13 0 13 4 3 1 1 0 8 1 sockpl 664 4415 0 4381 62 51 11 21 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 254 0 0 32 0 32 32 0 8 0 mtagpl 96 56 0 0 2 0 2 2 0 8 0 mbufpl 256 1110 0 0 67 0 67 67 0 8 0 bufpl 280 12103 0 5217 493 0 493 493 0 8 0 anonpl 24 362541 0 356699 99 30 69 75 0 185 8 amapchunkpl 152 62889 0 62294 51 14 37 39 0 158 11 amappl16 200 7853 0 7775 53 35 18 18 0 8 5 amappl15 192 8 0 8 2 2 0 1 0 8 0 amappl14 184 191 0 179 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 3471 0 3441 2 0 2 2 0 8 0 amappl11 160 74 0 59 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 127 0 127 1 1 0 1 0 8 0 amappl8 136 28 0 24 1 0 1 1 0 8 0 amappl7 128 178 0 165 1 0 1 1 0 8 0 amappl6 120 512 0 510 1 0 1 1 0 8 0 amappl5 112 273 0 261 1 0 1 1 0 8 0 amappl4 104 416 0 398 1 0 1 1 0 8 0 amappl3 96 12489 0 12373 5 1 4 4 0 8 0 amappl2 88 1167 0 1098 2 0 2 2 0 8 0 amappl1 80 15409 0 14849 17 4 13 14 0 8 0 amappl 88 18028 0 17846 5 0 5 5 0 92 0 dma16384 16384 2 0 2 2 1 1 1 0 8 1 dma4096 4096 2 0 2 2 2 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 72 123 0 10 3 0 3 3 0 8 0 uaddrrnd 24 2279 0 2249 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2279 0 2249 1 0 1 1 0 8 0 vmmpekpl 168 19130 0 19076 4 0 4 4 0 8 0 vmmpepl 168 143279 0 141397 119 21 98 98 0 357 10 vmsppl 440 2278 0 2249 5 1 4 5 0 8 0 rwobjpl 56 46178 0 39154 106 4 102 102 0 8 1 pdppl 4096 4565 0 4498 151 80 71 85 0 8 4 pvpl 32 32374 0 0 262 1 261 261 0 265 0 pmappl 248 2278 0 2249 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 563 0 130 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8362f2d8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362f2d8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a0f4550,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x744c81c247c0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8362f2d8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362f2d8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a0f4550,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x744c81c247c0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a05c528,ffff800034d946e0,ffff800034d94630) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800034d946e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800034d946e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d1ff67ffd0, count: 10 ddb{1}> trace ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a05c528,ffffffffffffffff,0,a0c7df9b,fffffd806196bcc0,fffffd807f7d3680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806196bcc0,4,20c7df9b,0,ffff80002a05c528) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a05c528,ffff800034d946e0,ffff800034d94630) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800034d946e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800034d946e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d1ff67ffd0, count: -5