uvm_fault(0xffff800001c9c7c0, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at sys_shmat+0x7e2: movq 0(%r12),%rdi TID PID UID PRFLAGS PFLAGS CPU COMMAND 132841 24360 0 0 0 0 syz-executor * 70551 24360 0 0 0x4000000 1K syz-executor sys_shmat(ffff800045ff5a10,ffff800039324320,ffff800039324280) at sys_shmat+0x7e2 sys/kern/sysv_shm.c:290 syscall(ffff800039324320) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039324320) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaf30a5cea20, count: 12 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(0xffff800001c9c7c0, 0x0, 0, 1) -> e ddb{1}> show kasan kasan: no report recorded this boot ddb{1}> trace sys_shmat(ffff800045ff5a10,ffff800039324320,ffff800039324280) at sys_shmat+0x7e2 sys/kern/sysv_shm.c:290 syscall(ffff800039324320) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039324320) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaf30a5cea20, count: -3 ddb{1}> show registers rdi 0 rsi 0x800000000000 rbp 0xffff800039324190 rbx 0xffff800001c96ee0 rdx 0x7 rcx 0xffff808000000000 rax 0x1 r8 0x8 r9 0x1 r10 0 r11 0xffffffff855c8818 kasan_depot_arena+0x6f818 r12 0 r13 0xffff800001c8a008 r14 0x1 r15 0 rip 0xffffffff82682102 sys_shmat+0x7e2 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800039324080 ss 0x10 sys_shmat+0x7e2: movq 0(%r12),%rdi ddb{1}> show proc PROC (syz-executor) tid=70551 pid=24360 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=72, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045ff42b8,0xffff800045ff5788 process=0xffff800033ee7510 user=0xffff800039319000, vmspace=0xffff800001c9c7c0 estcpu=22, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 65753 224013 33321 0 2 0 0 syz-executor 65753 15557 33321 0 3 0 0x4000080 fsleep syz-executor 97433 178053 11035 0 2 0 0 syz-executor 97433 410682 11035 0 2 0 0x4000000 syz-executor 97433 44989 11035 0 2 0 0x4000000 syz-executor 39513 122932 19720 0 2 0 0 syz-executor 39513 487729 19720 0 2 0 0x4000000 syz-executor 39513 294936 19720 0 3 0 0x4000080 fsleep syz-executor 39513 511676 19720 0 3 0 0x4000080 fsleep syz-executor 24360 132841 83549 0 7 0 0 syz-executor *24360 70551 83549 0 7 0 0x4000000 syz-executor 24360 481177 83549 0 3 0 0x4000080 fsleep syz-executor 24360 482291 83549 0 2 0 0x4000000 syz-executor 16646 87418 47046 0 2 0x100002 0 sh 32896 390159 89967 0 2 0 0 syz-executor 32896 194868 89967 0 3 0 0x4000080 kqread syz-executor 47046 383594 81990 0 3 0x2 0x80 wait syz-executor 83549 54870 81990 0 3 0x2 0x80 nanoslp syz-executor 76765 55413 81990 0 2 0x2 0 syz-executor 71835 92372 81990 0 2 0x2 0 syz-executor 89967 333535 81990 0 3 0x2 0x80 nanoslp syz-executor 11035 477391 81990 0 3 0x2 0x80 nanoslp syz-executor 19720 410882 81990 0 3 0x2 0x80 nanoslp syz-executor 33321 185191 81990 0 3 0x2 0x80 nanoslp syz-executor 81990 489947 28083 0 3 0x2 0x80 kqread syz-executor 28083 519418 63449 0 3 0x100002 0x88 sigsusp ksh 63449 311913 26425 0 3 0x10 0x88 kqread sshd-session 26425 84685 64771 0 3 0x12 0x80 kqread sshd-session 56351 96901 1 0 3 0x100003 0x80 ttyin getty 64771 375165 1 0 3 0 0x88 kqread sshd 38650 80459 60543 74 3 0x1100012 0x80 bpf pflogd 60543 503653 1 0 3 0 0x80 sbwait pflogd 66540 500770 79478 73 3 0x1100010 0x80 kqread syslogd 79478 155625 1 0 3 0x100002 0x80 sbwait syslogd 69078 271208 1 0 3 0x100000 0x80 kqread resolvd 3860 373951 82089 77 3 0x100012 0x80 kqread dhcpleased 99547 523905 82089 77 3 0x100012 0x80 kqread dhcpleased 82089 22493 1 0 3 0 0x80 kqread dhcpleased 34686 371344 0 0 3 0x14000 0x200 bored smr 4175 235106 0 0 2 0x14000 0x200 zerothread 15874 158208 0 0 3 0x14000 0x200 aiodoned aiodoned 94137 40903 0 0 3 0x14000 0x200 syncer update 11880 157046 0 0 3 0x14000 0x200 cleaner cleaner 43038 475349 0 0 3 0x14000 0x200 reaper reaper 93869 372691 0 0 3 0x14000 0x200 pgdaemon pagedaemon 56986 228679 0 0 3 0x14000 0x200 bored viomb 4295 451809 0 0 3 0x14000 0x40000200 acpi0 acpi0 88094 455722 0 0 3 0x14000 0x40000200 idle1 78540 466281 0 0 3 0x14000 0x200 bored softnet1 82672 214510 0 0 3 0x14000 0x200 bored softnet0 17808 182272 0 0 3 0x14000 0x200 bored systqmp 26875 165023 0 0 3 0x14000 0x200 bored systq 55589 308472 0 0 3 0x14000 0x200 tmoslp softclockmp 51486 120669 0 0 3 0x14000 0x40000200 tmoslp softclock 35418 436283 0 0 3 0x14000 0x40000200 idle0 1 352481 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks Process 39513 (syz-executor) thread 0xffff800045ff5778 (487729) exclusive rwlock fdlock r = 0 (0xffff800045ff7510) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 ptmioctl+0x1f4 sys/kern/tty_pty.c:1096 #3 VOP_IOCTL+0x131 sys/kern/vfs_vops.c:264 #4 vn_ioctl+0x18c sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x868 sys/kern/sys_generic.c:510 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 Process 24360 (syz-executor) thread 0xffff800045ff5a10 (70551) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff85da6600) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 syscall+0x1048 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0x1048 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 16646 (sh) thread 0xffff800045ffcd10 (87418) exclusive rwlock vmmaplk r = 0 (0xffff800001c9cc90) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x19f sys/uvm/uvm_map.c:5170 #3 uvmspace_fork+0x1a2 sys/uvm/uvm_map.c:3752 #4 process_new+0x6aa sys/kern/kern_fork.c:282 #5 fork1+0x533 sys/kern/kern_fork.c:408 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xffff800001c61aa0) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x19f sys/uvm/uvm_map.c:5170 #3 uvmspace_fork+0x94 sys/uvm/uvm_map.c:3743 #4 process_new+0x6aa sys/kern/kern_fork.c:282 #5 fork1+0x533 sys/kern/kern_fork.c:408 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 Process 76765 (syz-executor) thread 0xffff800045ffd4d8 (55413) exclusive rwlock vmmaplk r = 0 (0xffff800001c9caa8) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x19f sys/uvm/uvm_map.c:5170 #3 uvmspace_fork+0x1a2 sys/uvm/uvm_map.c:3752 #4 process_new+0x6aa sys/kern/kern_fork.c:282 #5 fork1+0x533 sys/kern/kern_fork.c:408 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xffff800000d8ac70) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x19f sys/uvm/uvm_map.c:5170 #3 uvmspace_fork+0x94 sys/uvm/uvm_map.c:3743 #4 process_new+0x6aa sys/kern/kern_fork.c:282 #5 fork1+0x533 sys/kern/kern_fork.c:408 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 Process 71835 (syz-executor) thread 0xffff800045ffdca0 (92372) exclusive rwlock vmmaplk r = 0 (0xffff800001c9c4f0) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x19f sys/uvm/uvm_map.c:5170 #3 uvmspace_fork+0x1a2 sys/uvm/uvm_map.c:3752 #4 process_new+0x6aa sys/kern/kern_fork.c:282 #5 fork1+0x533 sys/kern/kern_fork.c:408 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xffff8000017cac78) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x19f sys/uvm/uvm_map.c:5170 #3 uvmspace_fork+0x94 sys/uvm/uvm_map.c:3743 #4 process_new+0x6aa sys/kern/kern_fork.c:282 #5 fork1+0x533 sys/kern/kern_fork.c:408 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11055 12251K 12259K 166960K 12149 0 pcb 17 24K 24K 166960K 19 0 rtable 231 12K 12K 166960K 341 0 pf 34 22K 24K 166960K 46 0 ifaddr 43 12K 12K 166960K 45 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 1K 13K 166960K 5 0 counters 70 42K 42K 166960K 70 0 ioctlops 0 0K 4K 166960K 1486 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1291 83K 83K 166960K 1364 0 UFS quota 1 36K 36K 166960K 1 0 UFS mount 5 44K 44K 166960K 5 0 shm 3 6K 6K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 292K 166960K 11964 0 file desc 19 69K 89K 166960K 141 0 proc 69 128K 177K 166960K 554 0 subproc 72 9K 9K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 20K 20K 166960K 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 36K 36K 166960K 1 0 MSDOSFS mount 1 20K 20K 166960K 1 0 ttys 43 303K 303K 166960K 43 0 exec 0 0K 2K 166960K 390 0 fusefs mount 1 36K 36K 166960K 1 0 tdb 3 1K 1K 166960K 3 0 VM swap 14 124K 124K 166960K 15 0 UVM amap 223 246K 262K 166960K 3224 0 UVM aobj 4 4K 4K 166960K 4 0 pinsyscall 1068 1719K 1725K 166960K 1327 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 1K 166960K 28 0 temp 34 9162K 9172K 166960K 3989 0 kqueue 14 44K 44K 166960K 27 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 34 0 31 1 0 1 1 0 8 0 rtentry 176 108 0 1 5 0 5 5 0 8 0 unpcb 144 41 0 24 1 0 1 1 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 8 0 4 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 75 0 66 1 0 1 1 0 8 0 nd6 152 21 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 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 pfstitem 24 21 0 0 1 0 1 1 0 8 0 pfstkey 128 21 0 0 1 0 1 1 0 8 0 pfstate 448 21 0 0 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 449 0 0 29 0 29 29 0 8 0 art_table 40 450 0 0 5 0 5 5 0 8 0 art_node 32 108 0 11 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 72 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 1575 0 108 92 0 92 92 0 8 0 ffsino 296 1575 0 108 113 0 113 113 0 8 0 nchpl 144 1777 0 78 63 0 63 63 0 8 0 vnodes 216 1663 0 0 93 0 93 93 0 8 0 namei 1024 5505 0 5505 2 1 1 1 0 8 1 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 27 0 0 2 0 2 2 0 8 0 scxspl 216 6587 0 6587 4 3 1 2 1 8 1 plimitpl 152 29 0 12 1 0 1 1 0 8 0 sigapl 424 471 0 422 7 0 7 7 0 8 1 knotepl 120 52 0 0 2 0 2 2 0 8 0 kqueuepl 224 24 0 14 1 0 1 1 0 8 0 pipepl 344 132 0 105 3 0 3 3 0 8 0 fdescpl 528 455 0 422 3 0 3 3 0 8 0 filepl 160 1619 0 1402 10 0 10 10 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 25 0 15 1 0 1 1 0 8 0 pgrppl 48 33 0 15 1 0 1 1 0 8 0 ucredpl 104 95 0 82 1 0 1 1 0 8 0 zombiepl 144 423 0 423 2 1 1 1 0 8 1 processpl 1232 471 0 422 5 0 5 5 0 8 0 procpl 664 490 0 431 5 0 5 5 0 8 0 sockpl 752 151 0 121 4 0 4 4 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mextrefs 64 19 0 0 1 0 1 1 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 137 0 0 9 0 9 9 0 8 0 bufpl 272 2318 0 106 148 0 148 148 0 8 0 anonpl 32 3861 0 0 32 0 32 32 0 222 0 amapchunkpl 152 8663 0 8219 19 1 18 18 0 158 0 amappl16 200 1890 0 1877 5 4 1 5 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 441 0 439 1 0 1 1 0 8 0 amappl13 176 123 0 111 1 0 1 1 0 8 0 amappl12 168 708 0 677 2 0 2 2 0 8 0 amappl11 160 20 0 20 2 2 0 1 0 8 0 amappl10 152 69 0 55 1 0 1 1 0 8 0 amappl9 144 274 0 274 1 1 0 1 0 8 0 amappl8 136 100 0 98 1 0 1 1 0 8 0 amappl7 128 158 0 145 1 0 1 1 0 8 0 amappl6 120 177 0 175 1 0 1 1 0 8 0 amappl5 112 122 0 111 1 0 1 1 0 8 0 amappl4 104 299 0 279 1 0 1 1 0 8 0 amappl3 96 1540 0 1451 3 0 3 3 0 8 0 amappl2 88 581 0 510 2 0 2 2 0 8 0 amappl1 80 10517 0 9912 15 1 14 15 0 8 1 amappl 88 2481 0 2330 4 0 4 4 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 24 455 0 422 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 455 0 422 1 0 1 1 0 8 0 vmmpekpl 168 5713 0 5681 2 0 2 2 0 8 0 vmmpepl 168 38934 0 37066 85 1 84 85 0 357 2 vmsppl 488 454 0 422 5 0 5 5 0 8 0 rwobjpl 80 14807 0 13800 24 0 24 24 0 8 1 pdppl 4096 919 0 844 101 24 77 85 0 8 2 pvpl 32 9704 0 0 79 0 79 79 0 265 0 pmappl 256 454 0 422 3 0 3 3 0 8 0 extentpl 40 47 0 29 1 0 1 1 0 8 0 phpool 120 419 0 29 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x19: leave x86_ipi_db(ffffffff84ebaff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 end of kernel end trace frame: 0x7208ab625120, count: 12 ddb{0}> trace x86_ipi_db(ffffffff84ebaff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 end of kernel end trace frame: 0x7208ab625120, count: -3 ddb{0}> machine ddbcpu 1 Stopped at sys_shmat+0x7e2: movq 0(%r12),%rdi sys_shmat(ffff800045ff5a10,ffff800039324320,ffff800039324280) at sys_shmat+0x7e2 sys/kern/sysv_shm.c:290 syscall(ffff800039324320) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039324320) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaf30a5cea20, count: 12 ddb{1}> trace sys_shmat(ffff800045ff5a10,ffff800039324320,ffff800039324280) at sys_shmat+0x7e2 sys/kern/sysv_shm.c:290 syscall(ffff800039324320) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039324320) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaf30a5cea20, count: -3