uvm_fault(0xfffffd8068649c30, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_LOCK+0x6f: movq 0(%rax),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *132084 99012 0 0x8000010 0x4000000 0 syz-executor.2 VOP_LOCK(fffffd805b57f1d0,1) at VOP_LOCK+0x6f sys/kern/vfs_vops.c:515 vn_lock(fffffd805b57f1d0,1) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vget(fffffd805b57f1d0,1) at vget+0x1fd sys/kern/vfs_subr.c:676 ufs_ihashget(400,1faa1) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 ffs_vget(ffff8000006cf000,1faa1,ffff800030d61178) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 ufs_lookup() at ufs_lookup+0x10b9 sys/ufs/ufs/ufs_lookup.c:555 VOP_LOOKUP(fffffd8064094008,ffff800030d614b0,ffff800030d61330) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_getcwd_scandir(ffff800030d614c0,ffff800030d614b0,ffff800030d614b8,ffff8000006bad30,ffff80002a68b9c8) at vfs_getcwd_scandir+0xfe sys/kern/vfs_getcwd.c:93 vfs_getcwd_common(fffffd8064094008,0,ffff800030d61550,ffff8000006bad30,1,1,6e5ca7a0b2b252a8) at vfs_getcwd_common+0x2e1 sys/kern/vfs_getcwd.c:353 sysctl_proc_cwd(ffff800030d61778,1,20000100,ffff800030d617a8,ffff80002a68b9c8) at sysctl_proc_cwd+0x1f5 sys/kern/kern_sysctl.c:2106 kern_sysctl(ffff800030d61774,2,20000100,ffff800030d617a8,0,37,3463a815bc81bb10) at kern_sysctl+0x116 sys/kern/kern_sysctl.c:658 sys_sysctl(ffff80002a68b9c8,ffff800030d618e0,ffff800030d61830) at sys_sysctl+0x217 sys/kern/kern_sysctl.c:254 syscall(ffff800030d618e0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78e52eef340, count: 1 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(0xfffffd8068649c30, 0x0, 0, 1) -> e ddb> trace VOP_LOCK(fffffd805b57f1d0,1) at VOP_LOCK+0x6f sys/kern/vfs_vops.c:515 vn_lock(fffffd805b57f1d0,1) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vget(fffffd805b57f1d0,1) at vget+0x1fd sys/kern/vfs_subr.c:676 ufs_ihashget(400,1faa1) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 ffs_vget(ffff8000006cf000,1faa1,ffff800030d61178) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 ufs_lookup() at ufs_lookup+0x10b9 sys/ufs/ufs/ufs_lookup.c:555 VOP_LOOKUP(fffffd8064094008,ffff800030d614b0,ffff800030d61330) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_getcwd_scandir(ffff800030d614c0,ffff800030d614b0,ffff800030d614b8,ffff8000006bad30,ffff80002a68b9c8) at vfs_getcwd_scandir+0xfe sys/kern/vfs_getcwd.c:93 vfs_getcwd_common(fffffd8064094008,0,ffff800030d61550,ffff8000006bad30,1,1,6e5ca7a0b2b252a8) at vfs_getcwd_common+0x2e1 sys/kern/vfs_getcwd.c:353 sysctl_proc_cwd(ffff800030d61778,1,20000100,ffff800030d617a8,ffff80002a68b9c8) at sysctl_proc_cwd+0x1f5 sys/kern/kern_sysctl.c:2106 kern_sysctl(ffff800030d61774,2,20000100,ffff800030d617a8,0,37,3463a815bc81bb10) at kern_sysctl+0x116 sys/kern/kern_sysctl.c:658 sys_sysctl(ffff80002a68b9c8,ffff800030d618e0,ffff800030d61830) at sys_sysctl+0x217 sys/kern/kern_sysctl.c:254 syscall(ffff800030d618e0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78e52eef340, count: -14 ddb> show registers rdi 0 rsi 0 rbp 0xffff800030d60f10 rbx 0 rdx 0 rcx 0xffffffff82cc8ff0 cpu_info_full_primary+0x1ff0 rax 0 r8 0x30 r9 0xfffffd807f7d7dd0 r10 0x333680fc5218f70b r11 0xa4192d88047d2010 r12 0 r13 0 r14 0xfffffd805b57f1d0 r15 0 rip 0xffffffff8163345f VOP_LOCK+0x6f cs 0x8 rflags 0x10203 __ALIGN_SIZE+0xf203 rsp 0xffff800030d60ec0 ss 0x10 VOP_LOCK+0x6f: movq 0(%rax),%r14 ddb> show proc PROC (syz-executor.2) tid=132084 pid=99012 tcnt=3 stat=onproc flags process=8000010 proc=4000000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a68a7d8,0xffff80002a68b4b8 process=0xffff8000ffff7ab0 user=0xffff800030d5c000, vmspace=0xfffffd8068649c30 estcpu=34, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 97001 253228 86679 60928 2 0x8000010 syz-executor.6 97001 81283 86679 60928 3 0xc000090 fsleep syz-executor.6 2314 19030 9181 0 2 0x8000000 syz-executor.1 2314 424662 9181 0 3 0xc000080 fsleep syz-executor.1 99012 212300 67505 0 2 0x8000010 syz-executor.2 *99012 132084 67505 0 7 0xc000010 syz-executor.2 99012 11275 67505 0 3 0xc000090 fsleep syz-executor.2 38966 91875 36454 0 2 0x8000010 syz-executor.0 38966 143133 36454 0 3 0xc000090 fsleep syz-executor.0 23209 402762 80553 0 2 0x8000000 syz-executor.4 23209 241485 80553 0 3 0xc000080 fsleep syz-executor.4 24260 245640 11490 0 2 0x8000000 syz-executor.5 24260 183950 11490 0 3 0xc000080 fsleep syz-executor.5 86679 120033 73013 0 3 0x8000082 nanoslp syz-executor.6 67505 7466 73013 0 3 0x8000082 nanoslp syz-executor.2 39073 121868 1 0 3 0x18100083 ttyin getty 9181 295464 73013 0 3 0x8000082 nanoslp syz-executor.1 27156 301065 73013 0 2 0x8000002 syz-executor.3 36454 220625 73013 0 3 0x8000082 nanoslp syz-executor.0 80553 209551 73013 0 3 0x8000082 nanoslp syz-executor.4 68165 102042 73013 0 3 0x8000082 nanoslp syz-executor.7 11490 452546 73013 0 3 0x8000082 nanoslp syz-executor.5 5688 424937 0 0 3 0x14200 bored sosplice 73013 142295 15993 0 3 0x1a000082 wait syz-fuzzer 73013 226893 15993 0 3 0x1e000082 nanoslp syz-fuzzer 73013 311690 15993 0 3 0x1e000082 thrsleep syz-fuzzer 73013 463065 15993 0 3 0x1e000082 wait syz-fuzzer 73013 41250 15993 0 3 0x1e000082 wait syz-fuzzer 73013 228465 15993 0 3 0x1e000082 wait syz-fuzzer 73013 17519 15993 0 3 0x1e000082 thrsleep syz-fuzzer 73013 436373 15993 0 3 0x1e000082 thrsleep syz-fuzzer 73013 299066 15993 0 3 0x1e000082 wait syz-fuzzer 73013 38670 15993 0 3 0x1e000082 wait syz-fuzzer 73013 86868 15993 0 3 0x1e000082 thrsleep syz-fuzzer 73013 28911 15993 0 3 0x1e000082 wait syz-fuzzer 73013 220094 15993 0 3 0x1e000082 wait syz-fuzzer 73013 514021 15993 0 3 0x1e000082 kqread syz-fuzzer 15993 62340 39334 0 3 0x810008a sigsusp ksh 39334 219093 57566 0 3 0x1800009a kqread sshd 57566 83571 1 0 3 0x18000088 kqread sshd 52732 496568 37537 73 3 0x19100090 kqread syslogd 37537 493504 1 0 3 0x18100082 sbwait syslogd 68432 59222 1 0 3 0x18100080 kqread resolvd 27724 233237 0 0 3 0x14200 bored smr 99246 242835 0 0 2 0x14200 zerothread 6688 467456 0 0 3 0x14200 aiodoned aiodoned 39849 428594 0 0 3 0x14200 syncer update 394 142881 0 0 3 0x14200 cleaner cleaner 52177 309438 0 0 3 0x14200 reaper reaper 46600 328363 0 0 3 0x14200 pgdaemon pagedaemon 46912 244653 0 0 3 0x14200 bored viomb 90584 332074 0 0 3 0x40014200 acpi0 acpi0 68356 453330 0 0 3 0x14200 bored softnet3 74079 232004 0 0 3 0x14200 bored softnet2 48511 197930 0 0 3 0x14200 bored softnet1 37829 445645 0 0 3 0x14200 bored softnet0 30446 240326 0 0 3 0x14200 bored systqmp 72765 391289 0 0 3 0x14200 bored systq 28242 297834 0 0 2 0x40014200 softclock 19966 269114 0 0 3 0x40014200 idle0 1 493911 0 0 3 0x8080082 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 10171 6426K 6808K 166960K 13098 0 pcb 18 12K 12K 166960K 382 0 rtable 222 10K 11K 166960K 4013 0 pf 32 9K 9K 166960K 335 0 ifaddr 42 12K 13K 166960K 537 0 ifgroup 55 2K 2K 166960K 626 0 sysctl 4 1K 1K 166960K 82 0 counters 31 17K 17K 166960K 169 0 ioctlops 0 0K 2K 166960K 264 0 iov 0 0K 16K 166960K 132 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1401 88K 88K 166960K 3992 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 4 76K 76K 166960K 64 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 202 0 dirhash 12 2K 3K 166960K 126 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 109K 166960K 4000 0 sigio 0 0K 0K 166960K 59 0 proc 53 42K 116K 166960K 3783 0 subproc 104 6K 8K 166960K 1601 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 401 0 in_multi 88 6K 7K 166960K 1387 0 ether_multi 1 0K 0K 166960K 15 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 2102 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 278 95K 113K 166960K 31304 0 UVM aobj 68 7K 7K 166960K 78 0 pinsyscall 31 62K 100K 166960K 8173 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 176 0 NDP 12 0K 2K 166960K 386 0 temp 77 6812K 6940K 166960K 145681 0 kqueue 7 12K 26K 166960K 388 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 483 0 482 1 0 1 1 0 8 0 rtentry 112 1439 0 1338 4 0 4 4 0 8 0 unpcb 144 1777 0 1765 2 1 1 2 0 8 0 syncache 336 12 0 12 2 1 1 1 0 8 1 sackhl 24 2 0 2 1 1 0 1 0 8 0 tcpqe 32 24 0 24 1 0 1 1 0 8 1 tcpcb 808 693 0 685 3 1 2 2 0 8 1 arp 88 269 0 253 1 0 1 1 0 8 0 ipq 40 10 0 10 1 0 1 1 0 8 1 ipqe 40 190 0 190 1 0 1 1 0 8 1 inpcb 352 3061 0 3047 3 0 3 3 0 8 1 nd6 104 380 0 359 1 0 1 1 0 8 0 pkpcb 40 19 0 19 2 1 1 1 0 8 1 kcovpl 48 123 0 115 1 0 1 1 0 8 0 ppxss 1072 12 0 12 2 1 1 1 0 8 1 art_heap8 4096 4 0 3 3 0 3 3 0 8 2 art_heap4 256 5550 0 5137 110 81 29 31 0 8 2 art_table 32 5554 0 5140 4 0 4 4 0 8 0 art_node 16 1428 0 1338 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 10 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 199 0 189 1 0 1 1 0 8 0 shmpl 112 75 0 10 2 0 2 2 0 8 0 dirhash 1024 93 0 76 3 0 3 3 0 8 0 dino2pl 256 5978 0 4461 96 0 96 96 0 8 0 ffsino 240 5978 0 4461 90 0 90 90 0 8 0 nchpl 144 10718 0 10113 67 40 27 67 0 8 0 uvmvnodes 80 7992 0 0 164 0 164 164 0 8 0 vnodes 216 7992 0 0 444 0 444 444 0 8 0 vnodes: pool(0xffffffff82d2f588:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd805b57ff90 (p 0xfffffd805b57f000) namei 1024 46376 0 46376 3 1 2 2 0 8 2 vcpupl 3904 5 0 1 1 0 1 1 0 8 0 vmpool 664 10 0 6 1 0 1 1 0 8 0 kstatmem 264 300 0 276 2 0 2 2 0 8 0 scsiplug 72 6 0 6 2 1 1 1 0 8 1 scxspl 216 84448 0 84448 9 7 2 8 1 8 2 plimitpl 152 561 0 546 1 0 1 1 0 8 0 sigapl 424 4078 0 4036 7 0 7 7 0 8 1 futexpl 64 46315 0 46309 1 0 1 1 0 8 0 knotepl 120 12527 0 12460 28 17 11 17 0 8 8 kqueuepl 184 725 0 718 1 0 1 1 0 8 0 pipepl 288 874 0 845 3 0 3 3 0 8 0 fdescpl 432 4059 0 4034 6 1 5 5 0 8 1 filepl 120 21893 0 21646 10 1 9 10 0 8 1 lockfpl 104 651 0 649 1 0 1 1 0 8 0 lockfspl 48 292 0 290 1 0 1 1 0 8 0 sessionpl 144 140 0 125 1 0 1 1 0 8 0 pgrppl 48 184 0 169 1 0 1 1 0 8 0 ucredpl 104 3319 0 3307 1 0 1 1 0 8 0 zombiepl 144 4037 0 4036 2 1 1 1 0 8 0 processpl 1072 4078 0 4036 4 0 4 4 0 8 0 procpl 656 6868 0 6806 7 0 7 7 0 8 0 sosppl 168 39 0 39 2 1 1 1 0 8 1 sockpl 504 5359 0 5331 8 2 6 7 0 8 2 mcl64k 65536 22 0 22 2 1 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 4 0 4 2 1 1 1 0 8 1 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 56 0 56 2 1 1 1 0 8 1 mcl4k 4096 14 0 14 2 1 1 1 0 8 1 mcl2k2 2112 2 0 2 2 1 1 1 0 8 1 mcl2k 2048 38710 0 38607 47 27 20 40 0 8 5 mtagpl 96 49 0 49 1 0 1 1 0 8 1 mbufpl 256 125149 0 124940 751 732 19 65 0 8 3 bufpl 280 14279 0 5347 639 0 639 639 0 8 0 anonpl 24 626665 0 621002 157 43 114 114 0 188 55 amapchunkpl 152 100695 0 99985 76 20 56 56 0 158 28 amappl16 200 13179 0 13063 71 53 18 36 0 8 7 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 492 0 483 2 1 1 2 0 8 0 amappl13 176 13 0 13 1 1 0 1 0 8 0 amappl12 168 6409 0 6382 2 0 2 2 0 8 0 amappl11 160 51 0 47 1 0 1 1 0 8 0 amappl10 152 184 0 174 1 0 1 1 0 8 0 amappl9 144 150 0 149 1 0 1 1 0 8 0 amappl8 136 324 0 295 2 0 2 2 0 8 0 amappl7 128 59 0 45 1 0 1 1 0 8 0 amappl6 120 2021 0 2007 2 0 2 2 0 8 0 amappl5 112 625 0 615 1 0 1 1 0 8 0 amappl4 104 1240 0 1212 3 1 2 2 0 8 1 amappl3 96 18531 0 18442 3 0 3 3 0 8 0 amappl2 88 4772 0 4718 4 2 2 4 0 8 0 amappl1 80 28897 0 28495 22 9 13 22 0 8 3 amappl 88 29786 0 29583 6 0 6 6 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 77 0 10 2 0 2 2 0 8 0 uaddrrnd 24 4069 0 4040 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4069 0 4040 1 0 1 1 0 8 0 vmmpekpl 168 33553 0 33501 5 1 4 4 0 8 0 vmmpepl 168 289008 0 287334 125 28 97 114 0 357 22 vmsppl 344 4068 0 4040 4 0 4 4 0 8 0 rwobjpl 24 79273 0 70273 55 0 55 55 0 8 0 pdppl 4096 8144 0 8084 409 347 62 82 0 8 2 pvpl 32 1754092 0 1742755 505 275 230 392 0 265 105 pmappl 216 4068 0 4040 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1538 0 1197 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace VOP_LOCK(fffffd805b57f1d0,1) at VOP_LOCK+0x6f sys/kern/vfs_vops.c:515 vn_lock(fffffd805b57f1d0,1) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vget(fffffd805b57f1d0,1) at vget+0x1fd sys/kern/vfs_subr.c:676 ufs_ihashget(400,1faa1) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 ffs_vget(ffff8000006cf000,1faa1,ffff800030d61178) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 ufs_lookup() at ufs_lookup+0x10b9 sys/ufs/ufs/ufs_lookup.c:555 VOP_LOOKUP(fffffd8064094008,ffff800030d614b0,ffff800030d61330) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_getcwd_scandir(ffff800030d614c0,ffff800030d614b0,ffff800030d614b8,ffff8000006bad30,ffff80002a68b9c8) at vfs_getcwd_scandir+0xfe sys/kern/vfs_getcwd.c:93 vfs_getcwd_common(fffffd8064094008,0,ffff800030d61550,ffff8000006bad30,1,1,6e5ca7a0b2b252a8) at vfs_getcwd_common+0x2e1 sys/kern/vfs_getcwd.c:353 sysctl_proc_cwd(ffff800030d61778,1,20000100,ffff800030d617a8,ffff80002a68b9c8) at sysctl_proc_cwd+0x1f5 sys/kern/kern_sysctl.c:2106 kern_sysctl(ffff800030d61774,2,20000100,ffff800030d617a8,0,37,3463a815bc81bb10) at kern_sysctl+0x116 sys/kern/kern_sysctl.c:658 sys_sysctl(ffff80002a68b9c8,ffff800030d618e0,ffff800030d61830) at sys_sysctl+0x217 sys/kern/kern_sysctl.c:254 syscall(ffff800030d618e0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78e52eef340, count: -14 ddb> machine ddbcpu 1 No such command ddb> trace VOP_LOCK(fffffd805b57f1d0,1) at VOP_LOCK+0x6f sys/kern/vfs_vops.c:515 vn_lock(fffffd805b57f1d0,1) at vn_lock+0x85 sys/kern/vfs_vnops.c:564 vget(fffffd805b57f1d0,1) at vget+0x1fd sys/kern/vfs_subr.c:676 ufs_ihashget(400,1faa1) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 ffs_vget(ffff8000006cf000,1faa1,ffff800030d61178) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201 ufs_lookup() at ufs_lookup+0x10b9 sys/ufs/ufs/ufs_lookup.c:555 VOP_LOOKUP(fffffd8064094008,ffff800030d614b0,ffff800030d61330) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 vfs_getcwd_scandir(ffff800030d614c0,ffff800030d614b0,ffff800030d614b8,ffff8000006bad30,ffff80002a68b9c8) at vfs_getcwd_scandir+0xfe sys/kern/vfs_getcwd.c:93 vfs_getcwd_common(fffffd8064094008,0,ffff800030d61550,ffff8000006bad30,1,1,6e5ca7a0b2b252a8) at vfs_getcwd_common+0x2e1 sys/kern/vfs_getcwd.c:353 sysctl_proc_cwd(ffff800030d61778,1,20000100,ffff800030d617a8,ffff80002a68b9c8) at sysctl_proc_cwd+0x1f5 sys/kern/kern_sysctl.c:2106 kern_sysctl(ffff800030d61774,2,20000100,ffff800030d617a8,0,37,3463a815bc81bb10) at kern_sysctl+0x116 sys/kern/kern_sysctl.c:658 sys_sysctl(ffff80002a68b9c8,ffff800030d618e0,ffff800030d61830) at sys_sysctl+0x217 sys/kern/kern_sysctl.c:254 syscall(ffff800030d618e0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78e52eef340, count: -14