uvm_fault(0xfffffd806ba79d00, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 TID PID UID PRFLAGS PFLAGS CPU COMMAND dt_ioctl_record_stop(ffff8000016c2c80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff800034d32dc0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800c67dce0,1,fffffd8007bfb6e8,ffff80003cb8e7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b7cd3d8,ffff80003cb8e7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806b7cd3d8,ffff80003cb8e7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003cb8e7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003cb8e7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003cb8e7e8,ffff800034d33130,ffff800034d33080) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800034d33130) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034d33130) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e8d835d3dd0, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806ba79d00, 0x0, 0, 1) -> e ddb> trace dt_ioctl_record_stop(ffff8000016c2c80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff800034d32dc0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800c67dce0,1,fffffd8007bfb6e8,ffff80003cb8e7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b7cd3d8,ffff80003cb8e7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806b7cd3d8,ffff80003cb8e7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003cb8e7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003cb8e7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003cb8e7e8,ffff800034d33130,ffff800034d33080) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800034d33130) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034d33130) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e8d835d3dd0, count: -12 ddb> show registers rdi 0 rsi 0 rbp 0xffff800034d32cf0 rbx 0xffffffff82802120 dtclose rdx 0 rcx 0xffff80003cb8e7e8 rax 0xffffffff837e1c18 dt_prov_syscall r8 0 r9 0 r10 0xffff800034d32db0 r11 0x4dcda9b5c90399c3 r12 0xffff80000006c080 r13 0 r14 0 r15 0xffff800001491e00 rip 0xffffffff828024a0 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff800034d32cc0 ss 0x10 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb> show proc PROC (syz-executor) tid=440269 pid=98127 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003cb8e7e8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003cb8f748,0xffff80003cb8efa8 process=0xffff80003cb8c910 user=0xffff800034d2e000, vmspace=0xfffffd806ba79d00 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 46812 138952 58683 0 2 0 syz-executor 46812 30630 58683 0 2 0x4000000 syz-executor 11528 400199 75181 0 2 0 syz-executor 11528 2829 75181 0 3 0x4000080 fsleep syz-executor 35421 384276 67061 0 2 0 syz-executor 35421 393114 67061 0 3 0x4000080 fsleep syz-executor 43960 220047 0 0 3 0x14200 acct acct 9077 363431 84386 0 3 0x82 wait syz-executor 6997 445868 84386 0 3 0x82 nanoslp syz-executor 93017 485623 10519 0 3 0x82 sbwait sshd-session 86189 371267 10519 0 3 0x82 sbwait sshd-session 75181 460373 84386 0 3 0x82 nanoslp syz-executor 15585 242246 0 0 3 0x14280 nfsidl nfsio 85145 135285 0 0 3 0x14280 nfsidl nfsio 15981 298284 0 0 3 0x14280 nfsidl nfsio 49938 468245 0 0 3 0x14280 nfsidl nfsio 71886 466894 0 0 3 0x14280 nfsidl nfsio 6798 205757 0 0 3 0x14280 nfsidl nfsio 46536 156463 0 0 3 0x14280 nfsidl nfsio 25 7309 0 0 3 0x14280 nfsidl nfsio 31229 41863 0 0 3 0x14280 nfsidl nfsio 85885 65155 0 0 3 0x14280 nfsidl nfsio 96687 352618 0 0 3 0x14280 nfsidl nfsio 10158 157037 0 0 3 0x14280 nfsidl nfsio 13220 236694 0 0 3 0x14280 nfsidl nfsio 65863 54642 0 0 3 0x14280 nfsidl nfsio 8414 411835 0 0 3 0x14280 nfsidl nfsio 67995 198844 0 0 3 0x14280 nfsidl nfsio 12873 384967 0 0 3 0x14280 nfsidl nfsio 11219 104290 0 0 3 0x14280 nfsidl nfsio 70107 61278 0 0 3 0x14280 nfsidl nfsio 55695 488597 0 0 3 0x14280 nfsidl nfsio 99402 153580 0 0 3 0x14200 bored sosplice 58683 247906 84386 0 2 0xc82 syz-executor 15661 41498 84386 0 2 0xc82 syz-executor 53319 352059 84386 0 3 0x82 nanoslp syz-executor 67061 263595 84386 0 3 0x82 nanoslp syz-executor 8677 342957 84386 0 3 0x82 nanoslp syz-executor 84386 42189 77203 0 3 0x82 kqread syz-executor 77203 63241 37416 0 3 0x10008a sigsusp ksh 37416 108051 63505 0 3 0x98 kqread sshd-session 63505 28063 10519 0 3 0x92 kqread sshd-session 45726 363963 1 0 3 0x100083 ttyopn getty 10519 349867 1 0 3 0x88 kqread sshd 91 369825 40714 73 3 0x1100090 kqread syslogd 40714 280510 1 0 3 0x100082 sbwait syslogd 82745 58061 1 0 3 0x100080 kqread resolvd 20834 8709 40795 77 3 0x100092 kqread dhcpleased 34002 424179 40795 77 3 0x100092 kqread dhcpleased 40795 225808 1 0 3 0x80 kqread dhcpleased 22838 335058 0 0 3 0x14200 bored smr 98029 327175 0 0 2 0x14200 zerothread 5593 378826 0 0 3 0x14200 aiodoned aiodoned 16646 120855 0 0 3 0x14200 syncer update 94067 3012 0 0 3 0x14200 cleaner cleaner 62497 298293 0 0 3 0x14200 reaper reaper 50624 284384 0 0 3 0x14200 pgdaemon pagedaemon 6806 244424 0 0 3 0x14200 bored viomb 80991 106020 0 0 3 0x40014200 acpi0 acpi0 27205 159176 0 0 3 0x14200 bored softnet7 53541 189904 0 0 3 0x14200 bored softnet6 80251 212880 0 0 3 0x14200 bored softnet5 93475 463356 0 0 3 0x14200 bored softnet4 39506 73765 0 0 3 0x14200 bored softnet3 18582 100926 0 0 3 0x14200 bored softnet2 49072 516236 0 0 3 0x14200 bored softnet1 57622 156243 0 0 2 0x14200 softnet0 37319 336789 0 0 3 0x14200 bored systqmp 7288 184067 0 0 3 0x14200 bored systq 96930 444620 0 0 2 0x40014200 softclock 22677 472214 0 0 3 0x40014200 idle0 1 411069 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10236 11152K 12319K 166960K 13755 0 pcb 19 14K 16K 166960K 342 0 rtable 165 7K 8K 166960K 534 0 pf 34 13K 17K 166960K 119 0 ifaddr 37 6K 7K 166960K 107 0 ifgroup 53 2K 2K 166960K 163 0 sysctl 3 1K 9K 166960K 16 0 counters 32 17K 18K 166960K 146 0 ioctlops 0 0K 4K 166960K 286 0 iov 0 0K 24K 166960K 87 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1522 96K 96K 166960K 2759 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 20 5K 5K 166960K 35 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 1206 0 sigio 0 0K 0K 166960K 21 0 proc 61 67K 108K 166960K 652 0 subproc 72 4K 4K 166960K 100 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 144 0 in_multi 81 5K 7K 166960K 189 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 6 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 758 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 253 160K 173K 166960K 11747 0 UVM aobj 64 3K 3K 166960K 66 0 pinsyscall 43 86K 94K 166960K 2351 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 69 0 NDP 11 0K 2K 166960K 66 0 temp 71 8674K 8738K 166960K 24731 0 kqueue 16 22K 30K 166960K 206 0 SYN cache 2 8K 16K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 197 0 193 3 0 3 3 0 8 2 rtentry 136 162 0 98 4 0 4 4 0 8 0 unpcb 144 627 0 604 4 0 4 4 0 8 3 syncache 336 10 0 10 2 1 1 1 0 8 1 tcpqe 32 4 0 4 2 1 1 1 0 8 1 tcpcb 736 650 0 639 13 5 8 8 0 8 6 arp 88 16 0 9 1 0 1 1 0 8 0 ipq 40 4 0 1 1 0 1 1 0 8 0 ipqe 40 8 0 5 1 0 1 1 0 8 0 inpcb 328 1560 0 1545 23 13 10 15 0 8 8 ip6q 72 3 0 1 2 1 1 1 0 8 0 ip6af 40 5 0 2 2 1 1 1 0 8 0 nd6 104 31 0 17 1 0 1 1 0 8 0 pkpcb 40 7 0 7 1 0 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1072 96 0 96 1 0 1 1 0 8 1 pppxif 1384 73 0 73 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pfrktable 1344 34 0 34 1 0 1 1 0 8 1 pfstkey 128 4 0 4 2 1 1 1 0 8 1 pfstate 384 2 0 2 2 1 1 1 0 8 1 rttmr 136 3 0 2 2 1 1 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 811 0 467 30 4 26 30 0 8 1 art_table 40 814 0 467 5 0 5 5 0 8 0 art_node 32 161 0 106 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 14 2 1 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 28 0 10 1 0 1 1 0 8 0 shmpl 112 63 0 2 2 0 2 2 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 3632 0 2131 95 0 95 95 0 8 0 ffsino 256 3632 0 2131 95 0 95 95 0 8 0 nchpl 144 5322 0 3631 63 0 63 63 0 8 0 rtmask 32 3 0 3 2 1 1 1 0 8 1 uvmvnodes 80 4594 0 0 94 0 94 94 0 8 0 vnodes 216 4594 0 0 256 0 256 256 0 8 0 namei 1024 19248 0 19248 3 2 1 2 0 8 1 kstatmem 264 88 0 66 2 0 2 2 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 17217 0 17217 11 7 4 8 1 8 4 plimitpl 152 230 0 214 1 0 1 1 0 8 0 sigapl 424 1526 0 1452 9 0 9 9 0 8 0 knotepl 120 45566 0 45514 42 30 12 17 0 8 8 kqueuepl 184 401 0 388 4 0 4 4 0 8 3 pipepl 304 306 0 279 13 5 8 8 0 8 5 fdescpl 448 1471 0 1439 5 1 4 5 0 8 0 filepl 120 9855 0 9613 17 1 16 16 0 8 5 lockfpl 104 887 0 885 2 0 2 2 0 8 1 lockfspl 48 350 0 348 1 0 1 1 0 8 0 sessionpl 144 31 0 21 1 0 1 1 0 8 0 pgrppl 48 83 0 65 1 0 1 1 0 8 0 ucredpl 104 2024 0 2011 1 0 1 1 0 8 0 zombiepl 144 1457 0 1452 1 0 1 1 0 8 0 processpl 1168 1526 0 1452 6 0 6 6 0 8 0 procpl 656 3065 0 2988 8 0 8 8 0 8 0 sosppl 168 8 0 8 2 1 1 1 0 8 1 sockpl 552 2418 0 2375 22 10 12 15 0 8 8 mcl64k 65536 46 0 46 2 1 1 1 0 8 1 mcl16k 16384 4 0 4 1 0 1 1 0 8 1 mcl12k 12288 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 20 0 20 2 1 1 1 0 8 1 mcl4k 4096 3821 0 3771 15 7 8 14 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 2034 0 2001 14 9 5 9 0 8 0 mtagpl 96 54 0 28 1 0 1 1 0 8 0 mbufpl 256 16498 0 16226 25 6 19 19 0 8 0 bufpl 280 5239 0 120 366 0 366 366 0 8 0 anonpl 24 206477 0 202801 45 9 36 36 0 187 6 amapchunkpl 152 40024 0 39489 32 3 29 29 0 158 8 amappl16 200 2747 0 2711 8 2 6 6 0 8 2 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 127 0 115 1 0 1 1 0 8 0 amappl13 176 5 0 5 2 1 1 1 0 8 1 amappl12 168 2134 0 2102 3 1 2 3 0 8 0 amappl11 160 80 0 70 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 112 0 100 1 0 1 1 0 8 0 amappl6 120 216 0 211 1 0 1 1 0 8 0 amappl5 112 134 0 127 1 0 1 1 0 8 0 amappl4 104 298 0 283 1 0 1 1 0 8 0 amappl3 96 7986 0 7863 4 0 4 4 0 8 0 amappl2 88 706 0 638 2 0 2 2 0 8 0 amappl1 80 14248 0 13528 17 0 17 17 0 8 1 amappl 88 10825 0 10648 5 0 5 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 7 0 7 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 53 0 52 1 0 1 1 0 8 0 aobjpl 72 65 0 2 2 0 2 2 0 8 0 uaddrrnd 24 1471 0 1439 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1471 0 1439 1 0 1 1 0 8 0 vmmpekpl 168 12653 0 12607 3 0 3 3 0 8 0 vmmpepl 168 95803 0 93596 107 4 103 103 0 357 5 vmsppl 368 1470 0 1439 4 1 3 4 0 8 0 rwobjpl 40 29362 0 23636 58 0 58 58 0 8 0 pdppl 4096 2948 0 2878 110 40 70 80 0 8 0 pvpl 32 628210 0 617411 139 18 121 121 0 265 24 pmappl 216 1470 0 1439 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 431 0 80 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace dt_ioctl_record_stop(ffff8000016c2c80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff800034d32dc0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800c67dce0,1,fffffd8007bfb6e8,ffff80003cb8e7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b7cd3d8,ffff80003cb8e7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806b7cd3d8,ffff80003cb8e7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003cb8e7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003cb8e7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003cb8e7e8,ffff800034d33130,ffff800034d33080) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800034d33130) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034d33130) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e8d835d3dd0, count: -12 ddb> machine ddbcpu 1 No such command ddb> trace dt_ioctl_record_stop(ffff8000016c2c80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003cb8e7e8) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff800034d32dc0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800c67dce0,1,fffffd8007bfb6e8,ffff80003cb8e7e8) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b7cd3d8,ffff80003cb8e7e8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b7cd3d8,ffff80003cb8e7e8) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806b7cd3d8,ffff80003cb8e7e8) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003cb8e7e8) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003cb8e7e8,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003cb8e7e8,ffff800034d33130,ffff800034d33080) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800034d33130) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034d33130) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e8d835d3dd0, count: -12