uvm_fault(0xfffffd806c9f9d70, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 266983 69466 0 0 0 0 syz-executor dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800033ff91b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806a27a458,81,fffffd80097fd1a0,ffff8000fffef770) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806a6dc188,ffff8000fffef770) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806a6dc188,ffff8000fffef770) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffef770) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffef770,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffef770,ffff800033ff9520,ffff800033ff9470) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800033ff9520) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800033ff9520) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70b9077be4c0, 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: uvm_fault(0xfffffd806c9f9d70, 0x0, 0, 1) -> e ddb{1}> trace dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800033ff91b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806a27a458,81,fffffd80097fd1a0,ffff8000fffef770) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806a6dc188,ffff8000fffef770) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806a6dc188,ffff8000fffef770) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffef770) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffef770,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffef770,ffff800033ff9520,ffff800033ff9470) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800033ff9520) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800033ff9520) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70b9077be4c0, count: -12 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800033ff90e0 rbx 0x1 rdx 0 rcx 0xffff8000fffef770 rax 0xffffffff838087e0 dt_prov_syscall r8 0xffffffffffffffff r9 0x1 r10 0xe2a95eabdcf643e7 r11 0xefa39a405f8cc304 r12 0 r13 0 r14 0 r15 0xffff8000014a7900 rip 0xffffffff828687a8 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff800033ff90b0 ss 0x10 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=117032 pid=67818 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=73, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000fffef770 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff800030febca8,0xffff8000fffefa18 process=0xffff80002a3cd358 user=0xffff800033ff4000, vmspace=0xfffffd806c9f9d70 estcpu=23, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97783 310405 86852 0 2 0 syz-executor 97783 242206 86852 0 3 0x4000080 fsleep syz-executor 81879 180732 46886 0 2 0 syz-executor 69466 266983 27561 0 7 0 syz-executor 69466 250817 27561 0 2 0x4000000 syz-executor 84065 79581 60436 0 2 0 syz-executor 21337 283711 58839 0 3 0x3000 suspend syz-executor 21337 473394 58839 0 2 0x4081000 syz-executor 23851 92363 0 0 3 0x14200 acct acct 22143 409638 99491 0 3 0x100082 sbwait ndp 99491 349820 49322 0 3 0x10008a sigsusp sh 27561 307759 54180 0 3 0x82 nanoslp syz-executor 46886 436366 54180 0 3 0x82 nanoslp syz-executor 5651 452264 54180 0 2 0x2 syz-executor 86852 185247 54180 0 3 0x82 nanoslp syz-executor 60436 203412 54180 0 2 0x2 syz-executor 49322 51633 54180 0 3 0x82 wait syz-executor 79497 316019 54180 0 3 0x82 nanoslp syz-executor 58839 105118 54180 0 3 0x82 nanoslp syz-executor 54180 194373 13696 0 3 0x82 kqread syz-executor 13696 473605 38080 0 3 0x10008a sigsusp ksh 38080 517225 43461 0 3 0x98 kqread sshd-session 43461 386555 94101 0 3 0x92 kqread sshd-session 23387 84911 1 0 3 0x100083 ttyin getty 94101 371175 1 0 3 0x88 kqread sshd 57473 22953 66691 74 3 0x1100092 bpf pflogd 66691 469102 1 0 3 0x80 sbwait pflogd 85459 445884 41139 73 3 0x1100090 kqread syslogd 41139 250045 1 0 3 0x100082 sbwait syslogd 16506 171206 1 0 3 0x100080 kqread resolvd 66633 66176 18026 77 3 0x100092 kqread dhcpleased 9338 247879 18026 77 3 0x100092 kqread dhcpleased 18026 50793 1 0 3 0x80 kqread dhcpleased 19212 70762 0 0 3 0x14200 bored smr 5991 449103 0 0 2 0x14200 zerothread 28944 122794 0 0 3 0x14200 aiodoned aiodoned 72469 302259 0 0 3 0x14200 syncer update 39173 223332 0 0 3 0x14200 cleaner cleaner 67617 17392 0 0 3 0x14200 reaper reaper 83137 88364 0 0 3 0x14200 pgdaemon pagedaemon 98448 487064 0 0 3 0x14200 bored viomb 1162 261095 0 0 3 0x40014200 acpi0 acpi0 72393 79016 0 0 3 0x40014200 idle1 54817 415376 0 0 3 0x14200 bored softnet1 85498 476111 0 0 3 0x14200 bored softnet0 83944 325043 0 0 3 0x14200 bored systqmp 7797 448625 0 0 3 0x14200 bored systq 20332 309064 0 0 3 0x14200 tmoslp softclockmp 26244 456893 0 0 3 0x40014200 tmoslp softclock 57349 235462 0 0 3 0x40014200 idle0 1 414874 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10207 11131K 11379K 166960K 11406 0 pcb 17 12K 12K 166960K 22 0 rtable 249 8K 8K 166960K 383 0 pf 34 17K 18K 166960K 50 0 ifaddr 43 7K 7K 166960K 47 0 ifgroup 55 2K 2K 166960K 62 0 sysctl 3 1K 9K 166960K 7 0 counters 68 36K 37K 166960K 76 0 ioctlops 0 0K 4K 166960K 1522 0 iov 0 0K 12K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1345 85K 85K 166960K 1394 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 167 0 sigio 0 0K 0K 166960K 3 0 proc 71 115K 147K 166960K 529 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 2 0 in_multi 99 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 388 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 235 173K 177K 166960K 3434 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 44 88K 108K 166960K 1331 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 12 0K 1K 166960K 30 0 temp 37 8658K 8723K 166960K 4298 0 kqueue 13 20K 24K 166960K 28 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 43 0 39 1 0 1 1 0 8 0 rtentry 176 112 0 1 6 0 6 6 0 8 0 unpcb 144 41 0 22 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 15 0 11 1 0 1 1 0 8 0 arp 136 19 0 0 1 0 1 1 0 8 0 inpcb 328 115 0 106 3 0 3 3 0 8 2 nd6 152 23 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 3 0 3 1 0 1 1 0 8 1 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 18 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 0 1 0 1 1 0 8 0 pfstate 448 18 0 0 2 0 2 2 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 451 0 0 29 0 29 29 0 8 0 art_table 40 453 0 0 5 0 5 5 0 8 0 art_node 32 112 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1620 0 105 95 0 95 95 0 8 0 ffsino 296 1620 0 105 117 0 117 117 0 8 0 nchpl 144 1851 0 154 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 1725 0 0 96 0 96 96 0 8 0 namei 1024 5587 0 5587 1 0 1 1 0 8 1 percpumem 16 53 0 4 1 0 1 1 0 8 0 kstatmem 264 30 0 4 2 0 2 2 0 8 0 scxspl 216 6154 0 6154 3 2 1 2 1 8 1 plimitpl 152 29 0 12 1 0 1 1 0 8 0 sigapl 424 488 0 439 7 0 7 7 0 8 0 knotepl 120 296 0 0 9 0 9 9 0 8 0 kqueuepl 224 32 0 22 1 0 1 1 0 8 0 pipepl 344 122 0 95 3 0 3 3 0 8 0 fdescpl 528 471 0 439 3 0 3 3 0 8 0 filepl 160 1721 0 1502 11 0 11 11 0 8 1 lockfpl 104 14 0 12 1 0 1 1 0 8 0 lockfspl 48 8 0 6 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 95 0 82 1 0 1 1 0 8 0 zombiepl 144 441 0 439 1 0 1 1 0 8 0 processpl 1232 488 0 439 5 0 5 5 0 8 0 procpl 664 550 0 498 5 0 5 5 0 8 0 sockpl 752 199 0 167 6 0 6 6 0 8 2 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 1 mcl2k 2048 37 0 0 5 0 5 5 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 194 0 0 13 0 13 13 0 8 0 bufpl 280 2447 0 128 166 0 166 166 0 8 0 anonpl 32 3944 0 0 32 0 32 32 0 246 0 amapchunkpl 152 9617 0 9183 21 0 21 21 0 158 4 amappl16 200 2063 0 2048 5 2 3 5 0 8 1 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 9 0 8 1 0 1 1 0 8 0 amappl13 176 439 0 437 1 0 1 1 0 8 0 amappl12 168 846 0 804 3 0 3 3 0 8 0 amappl11 160 17 0 17 1 1 0 1 0 8 0 amappl10 152 51 0 37 1 0 1 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 36 0 34 1 0 1 1 0 8 0 amappl7 128 84 0 83 1 0 1 1 0 8 0 amappl6 120 292 0 277 1 0 1 1 0 8 0 amappl5 112 80 0 70 1 0 1 1 0 8 0 amappl4 104 427 0 397 1 0 1 1 0 8 0 amappl3 96 1526 0 1444 4 1 3 3 0 8 0 amappl2 88 598 0 524 2 0 2 2 0 8 0 amappl1 80 9334 0 8714 15 0 15 15 0 8 1 amappl 88 2671 0 2520 5 0 5 5 0 92 0 uvmvnodes 80 98 0 0 2 0 2 2 0 8 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 471 0 439 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 471 0 439 1 0 1 1 0 8 0 vmmpekpl 168 5704 0 5671 2 0 2 2 0 8 0 vmmpepl 168 38517 0 36617 88 0 88 88 0 357 4 vmsppl 488 470 0 439 5 0 5 5 0 8 0 rwobjpl 80 14146 0 13119 25 0 25 25 0 8 1 pdppl 4096 949 0 878 99 26 73 83 0 8 2 pvpl 32 10140 0 0 82 0 82 82 0 265 0 pmappl 256 470 0 439 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 274 0 28 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83868ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff838b72c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838b72c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x78b9bc338a80, count: 7 ddb{0}> trace x86_ipi_db(ffffffff83868ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff838b72c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838b72c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x78b9bc338a80, count: -8 ddb{0}> machine ddbcpu 1 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800033ff91b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806a27a458,81,fffffd80097fd1a0,ffff8000fffef770) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806a6dc188,ffff8000fffef770) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806a6dc188,ffff8000fffef770) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffef770) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffef770,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffef770,ffff800033ff9520,ffff800033ff9470) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800033ff9520) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800033ff9520) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70b9077be4c0, count: 3 ddb{1}> trace dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(31e5f,81,2000,ffff8000fffef770) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800033ff91b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806a27a458,81,fffffd80097fd1a0,ffff8000fffef770) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806a6dc188,ffff8000fffef770) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806a6dc188,ffff8000fffef770) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806a6dc188,ffff8000fffef770) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffef770) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffef770,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffef770,ffff800033ff9520,ffff800033ff9470) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800033ff9520) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800033ff9520) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70b9077be4c0, count: -12