uvm_fault(0xffffffff83aba540, 0xffff800023442004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_lookup+0x623: movzwl 0x4(%r15,%r14,1),%ebx TID PID UID PRFLAGS PFLAGS CPU COMMAND 408284 11954 0 0 0 0 syz-executor *206313 65867 0 0 0x4000000 1K syz-executor ufs_lookup() at ufs_lookup+0x623 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd8062b1c610,ffff8000383a6fb8,ffff8000383a6fe8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000383a6f88) at vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 namei(ffff8000383a6f88) at namei+0x7c5 sys/kern/vfs_lookup.c:250 vn_open(ffff8000383a6f88,207,805) at vn_open+0x22e sys/kern/vfs_vnops.c:109 doopenat(ffff80003c3bb780,ffffff9c,200000000300,206,bbaf7815,0,82d2ce5affe43de) at doopenat+0x35b sys/kern/vfs_syscalls.c:1161 sys_open(ffff80003c3bb780,ffff8000383a7240,ffff8000383a7190) at sys_open+0x59 sys/kern/vfs_syscalls.c:1063 syscall(ffff8000383a7240) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383a7240) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84c6b701f00, count: 6 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(0xffffffff83aba540, 0xffff800023442004, 0, 1) -> d ddb{1}> trace ufs_lookup() at ufs_lookup+0x623 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd8062b1c610,ffff8000383a6fb8,ffff8000383a6fe8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000383a6f88) at vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 namei(ffff8000383a6f88) at namei+0x7c5 sys/kern/vfs_lookup.c:250 vn_open(ffff8000383a6f88,207,805) at vn_open+0x22e sys/kern/vfs_vnops.c:109 doopenat(ffff80003c3bb780,ffffff9c,200000000300,206,bbaf7815,0,82d2ce5affe43de) at doopenat+0x35b sys/kern/vfs_syscalls.c:1161 sys_open(ffff80003c3bb780,ffff8000383a7240,ffff8000383a7190) at sys_open+0x59 sys/kern/vfs_syscalls.c:1063 syscall(ffff8000383a7240) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383a7240) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84c6b701f00, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff8000383a6bf0 rbx 0 rdx 0xffff8000015f85c0 rcx 0xffff80003c3bb780 rax 0xffff80002999dff0 r8 0xffffffffffffffff r9 0xfffffd80097fd6e8 r10 0xeaebcce16f723844 r11 0xacad0f1d87ee4c2e r12 0xfffffd8073e37e78 r13 0 r14 0 r15 0xffff800023442000 rip 0xffffffff829660f3 ufs_lookup+0x623 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000383a6b00 ss 0x10 ufs_lookup+0x623: movzwl 0x4(%r15,%r14,1),%ebx ddb{1}> show proc PROC (syz-executor) tid=206313 pid=65867 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c3bb4e8,0xffff80003c3ba568 process=0xffff8000ffff3030 user=0xffff8000383a2000, vmspace=0xfffffd8064086028 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 11954 408284 90339 0 7 0 syz-executor 11954 466790 90339 0 2 0x4000000 syz-executor 65867 299108 31241 0 2 0 syz-executor *65867 206313 31241 0 7 0x4000000 syz-executor 65803 348282 42606 0 2 0 syz-executor 65803 42630 42606 0 3 0x4000080 fsleep syz-executor 62720 477592 64662 0 2 0x82000 syz-executor 62720 284151 64662 0 3 0x4002000 suspend syz-executor 85164 7009 16108 0 2 0 syz-executor 85164 91777 16108 0 3 0x4000080 fsleep syz-executor 85164 429321 16108 0 3 0x4000080 fsleep syz-executor 70791 334431 3313 60929 3 0x90 nanoslp syz-executor 70791 234336 3313 60929 3 0x4000090 lockf syz-executor 70791 78444 3313 60929 3 0x4000090 fsleep syz-executor 58658 380809 78481 0 3 0x80 nanoslp syz-executor 58658 35118 78481 0 3 0x4000080 sbwait syz-executor 58658 74645 78481 0 3 0x4000080 fsleep syz-executor 90339 413229 13597 0 3 0x82 nanoslp syz-executor 64662 157061 13597 0 3 0x82 nanoslp syz-executor 2887 347092 1 0 3 0x100083 ttyin getty 3313 160737 13597 0 3 0x82 nanoslp syz-executor 42606 201894 13597 0 3 0x82 nanoslp syz-executor 60588 388156 0 0 3 0x14200 acct acct 78481 469162 13597 0 3 0x82 nanoslp syz-executor 16108 26053 13597 0 3 0x82 nanoslp syz-executor 31241 383286 13597 0 3 0x82 nanoslp syz-executor 13597 483394 1 0 3 0x82 wait syz-executor 96414 122737 0 0 3 0x14200 bored smr 67139 317179 0 0 2 0x14200 zerothread 66423 62295 0 0 3 0x14200 aiodoned aiodoned 76202 70939 0 0 3 0x14200 syncer update 52321 244559 0 0 3 0x14200 cleaner cleaner 16256 372485 0 0 3 0x14200 reaper reaper 69605 52324 0 0 3 0x14200 pgdaemon pagedaemon 78045 279834 0 0 3 0x14200 bored viomb 58049 157938 0 0 3 0x40014200 acpi0 acpi0 27432 487350 0 0 3 0x40014200 idle1 18197 185878 0 0 3 0x14200 bored softnet1 14223 178118 0 0 3 0x14200 bored softnet0 9514 150407 0 0 3 0x14200 bored systqmp 64146 225909 0 0 3 0x14200 bored systq 16428 62829 0 0 3 0x14200 tmoslp softclockmp 44969 415796 0 0 3 0x40014200 tmoslp softclock 54780 383487 0 0 3 0x40014200 idle0 1 83317 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 65867 (syz-executor) thread 0xffff80003c3bb780 (206313) exclusive rrwlock inode r = 0 (0xfffffd800e72deb0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 vn_open+0x22e sys/kern/vfs_vnops.c:109 #8 doopenat+0x35b sys/kern/vfs_syscalls.c:1161 #9 sys_open+0x59 sys/kern/vfs_syscalls.c:1063 #10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839e5f80) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 doopenat+0x340 sys/kern/vfs_syscalls.c:1161 #2 sys_open+0x59 sys/kern/vfs_syscalls.c:1063 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11073 12156K 12474K 166960K 13246 0 pcb 18 14K 16K 166960K 356 0 rtable 211 9K 9K 166960K 661 0 pf 39 18K 81K 166960K 310 0 ifaddr 42 7K 8K 166960K 107 0 ifgroup 53 2K 2K 166960K 151 0 sysctl 4 1K 9K 166960K 14 0 counters 70 37K 37K 166960K 152 0 ioctlops 0 0K 4K 166960K 1902 0 iov 1 0K 16K 166960K 41 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1360 86K 86K 166960K 2375 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 61 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 61K 89K 166960K 1163 0 sigio 0 0K 0K 166960K 6 0 proc 21 33K 164K 166960K 802 0 subproc 72 4K 4K 166960K 126 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 98 0 in_multi 91 6K 7K 166960K 200 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 22 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 666 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 132 82K 175K 166960K 11791 0 UVM aobj 26 3K 4K 166960K 36 0 pinsyscall 19 38K 104K 166960K 2482 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 37 0 NDP 12 0K 2K 166960K 73 0 temp 74 9124K 12972K 166960K 48799 0 kqueue 2 4K 33K 166960K 171 0 SYN cache 2 16K 24K 166960K 3 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 120 168 0 167 3 2 1 3 0 8 0 rtentry 176 206 0 119 6 0 6 6 0 8 0 unpcb 144 550 0 547 5 4 1 4 0 8 0 syncache 336 8 0 8 3 2 1 1 0 8 1 tcpcb 736 334 0 333 7 3 4 4 0 8 3 arp 136 38 0 20 1 0 1 1 0 8 0 inpcb 328 1271 0 1267 18 14 4 7 0 8 3 nd6 152 44 0 24 1 0 1 1 0 8 0 pkpcb 40 35 0 35 3 2 1 1 0 8 1 kcovpl 48 14 0 6 1 0 1 1 0 8 0 ppxss 1192 31 0 30 2 1 1 1 0 8 0 pppxif 1576 1 0 1 1 1 0 1 0 8 0 pfstscr 40 7 0 7 2 2 0 1 0 8 0 pffrag 232 15 0 3 1 0 1 1 0 482 0 pffrnode 88 14 0 3 1 0 1 1 0 8 0 pffrent 40 20 0 8 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 19 2 21 0 8 2 pfsrclim 320 4 0 4 2 1 1 1 0 8 1 pfanchor 1288 5 0 0 1 0 1 1 0 8 0 pftag 88 4 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 93 0 27 1 0 1 1 0 8 0 pfstkey 128 101 0 35 3 0 3 3 0 8 0 pfstate 448 97 0 31 8 0 8 8 0 8 0 pfrule 1360 30 0 24 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 1 3 1 2 2 0 8 0 art_heap4 256 836 0 446 33 8 25 31 0 8 0 art_table 40 839 0 447 5 0 5 5 0 8 0 art_node 32 206 0 128 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 8 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 72 56 0 46 1 0 1 1 0 8 0 shmpl 112 33 0 10 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 3377 0 1897 93 0 93 93 0 8 0 ffsino 296 3377 0 1897 115 0 115 115 0 8 0 nchpl 144 4840 0 3114 65 0 65 65 0 8 0 rtmask 32 3 0 3 2 2 0 1 0 8 0 vnodes 216 4084 0 0 227 0 227 227 0 8 0 namei 1024 16511 0 16510 3 1 2 2 0 8 1 percpumem 16 91 0 41 1 0 1 1 0 8 0 kstatmem 264 93 0 66 5 3 2 3 0 8 0 scsiplug 72 5 0 5 3 2 1 1 0 8 1 scxspl 216 19287 0 19287 14 9 5 8 1 8 5 plimitpl 152 288 0 277 1 0 1 1 0 8 0 sigapl 424 1472 0 1436 7 1 6 7 0 8 0 knotepl 120 526 0 0 16 0 16 16 0 8 0 kqueuepl 224 307 0 304 4 1 3 3 0 8 2 pipepl 344 251 0 224 6 3 3 6 0 8 0 fdescpl 528 1454 0 1435 3 0 3 3 0 8 0 filepl 160 7920 0 7750 17 6 11 14 0 8 0 lockfpl 104 535 0 531 2 1 1 2 0 8 0 lockfspl 48 247 0 245 1 0 1 1 0 8 0 sessionpl 144 57 0 54 1 0 1 1 0 8 0 pgrppl 48 78 0 67 1 0 1 1 0 8 0 ucredpl 104 1234 0 1229 1 0 1 1 0 8 0 zombiepl 144 1437 0 1436 1 0 1 1 0 8 0 processpl 1232 1472 0 1436 5 1 4 5 0 8 0 procpl 664 2969 0 2923 7 1 6 6 0 8 0 sosppl 176 4 0 4 2 1 1 1 0 8 1 sockpl 752 2062 0 2054 23 16 7 14 0 8 5 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 208 0 0 13 0 13 13 0 8 0 bufpl 280 7095 0 964 439 0 439 439 0 8 0 anonpl 32 9464 0 0 77 0 77 77 0 246 0 amapchunkpl 152 38174 0 37827 40 18 22 34 0 158 4 amappl16 200 3340 0 3313 38 26 12 21 0 8 6 amappl15 192 108 0 108 1 1 0 1 0 8 0 amappl14 184 504 0 504 1 0 1 1 0 8 1 amappl13 176 134 0 133 1 0 1 1 0 8 0 amappl12 168 1727 0 1709 2 0 2 2 0 8 0 amappl11 160 25 0 25 1 1 0 1 0 8 0 amappl10 152 65 0 65 1 0 1 1 0 8 1 amappl9 144 274 0 273 2 1 1 1 0 8 0 amappl8 136 125 0 125 1 0 1 1 0 8 1 amappl7 128 161 0 159 1 0 1 1 0 8 0 amappl6 120 217 0 217 1 0 1 1 0 8 1 amappl5 112 94 0 93 1 0 1 1 0 8 0 amappl4 104 321 0 317 1 0 1 1 0 8 0 amappl3 96 7977 0 7899 4 0 4 4 0 8 0 amappl2 88 599 0 589 2 0 2 2 0 8 0 amappl1 80 14967 0 14850 14 1 13 14 0 8 7 amappl 88 10765 0 10647 5 0 5 5 0 92 0 uvmvnodes 80 123 0 0 3 0 3 3 0 8 0 dma16384 16384 2 0 2 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 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 9 0 9 3 3 0 1 0 8 0 dma128 128 258 0 258 4 3 1 1 0 8 1 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 35 0 10 1 0 1 1 0 8 0 uaddrrnd 24 1454 0 1435 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1454 0 1435 1 0 1 1 0 8 0 vmmpekpl 168 12605 0 12566 3 0 3 3 0 8 0 vmmpepl 168 96444 0 95590 103 15 88 101 0 357 41 vmsppl 488 1453 0 1435 6 1 5 5 0 8 0 rwobjpl 80 26654 0 26189 34 10 24 29 0 8 2 pdppl 4096 2915 0 2870 111 64 47 85 0 8 2 pvpl 32 16389 0 0 133 0 133 133 0 265 0 pmappl 256 1453 0 1435 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 310 0 86 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83913ff0) 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+0x19 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 sys/dev/kcov.c:153 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: 0x7e8eac132610, count: 8 ddb{0}> trace x86_ipi_db(ffffffff83913ff0) 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+0x19 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 sys/dev/kcov.c:153 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: 0x7e8eac132610, count: -7 ddb{0}> machine ddbcpu 1 Stopped at ufs_lookup+0x623: movzwl 0x4(%r15,%r14,1),%ebx ufs_lookup() at ufs_lookup+0x623 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd8062b1c610,ffff8000383a6fb8,ffff8000383a6fe8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000383a6f88) at vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 namei(ffff8000383a6f88) at namei+0x7c5 sys/kern/vfs_lookup.c:250 vn_open(ffff8000383a6f88,207,805) at vn_open+0x22e sys/kern/vfs_vnops.c:109 doopenat(ffff80003c3bb780,ffffff9c,200000000300,206,bbaf7815,0,82d2ce5affe43de) at doopenat+0x35b sys/kern/vfs_syscalls.c:1161 sys_open(ffff80003c3bb780,ffff8000383a7240,ffff8000383a7190) at sys_open+0x59 sys/kern/vfs_syscalls.c:1063 syscall(ffff8000383a7240) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383a7240) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84c6b701f00, count: 6 ddb{1}> trace ufs_lookup() at ufs_lookup+0x623 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd8062b1c610,ffff8000383a6fb8,ffff8000383a6fe8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff8000383a6f88) at vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 namei(ffff8000383a6f88) at namei+0x7c5 sys/kern/vfs_lookup.c:250 vn_open(ffff8000383a6f88,207,805) at vn_open+0x22e sys/kern/vfs_vnops.c:109 doopenat(ffff80003c3bb780,ffffff9c,200000000300,206,bbaf7815,0,82d2ce5affe43de) at doopenat+0x35b sys/kern/vfs_syscalls.c:1161 sys_open(ffff80003c3bb780,ffff8000383a7240,ffff8000383a7190) at sys_open+0x59 sys/kern/vfs_syscalls.c:1063 syscall(ffff8000383a7240) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383a7240) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84c6b701f00, count: -9 ddb{1}>