uvm_fault(0xfffffd806c7bc9a8, 0x18, 0, 1) -> e kernel: page fault trap, code=0 Stopped at fill_kproc+0x4a: movq 0x18(%rax),%rax TID PID UID PRFLAGS PFLAGS CPU COMMAND * 6051 51958 -1 0x10 0x4000000 0K syz-executor 271851 51958 -1 0x10 0x4000000 1 syz-executor fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052 sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014 kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442 kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b37f7a9840, count: 8 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806c7bc9a8, 0x18, 0, 1) -> e ddb{0}> trace fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052 sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014 kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442 kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b37f7a9840, count: -7 ddb{0}> show registers rdi 0xffff80003c41b9e0 rsi 0xffff8000015c9c00 rbp 0xffff80003c453680 rbx 0xdeaf4152deaf4152 rdx 0 rcx 0xffff80003c3fca80 rax 0 r8 0x7f7fffffc000 r9 0x1 r10 0xcc354c3db3aceb55 r11 0x1bfb65127f2e2c0 r12 0xffff8000015c9c00 r13 0xdeaf4152deaf4152 r14 0xffff8000015c9c00 r15 0xffff80003c41b9e0 rip 0xffffffff82d0b6ca fill_kproc+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c453590 ss 0x10 fill_kproc+0x4a: movq 0x18(%rax),%rax ddb{0}> show proc PROC (syz-executor) tid=6051 pid=51958 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=82, usrpri=82, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c3fd778,0xffff80003c3fc7f8 process=0xffff80003c41a6a0 user=0xffff80003c44e000, vmspace=0xfffffd806c7bc9a8 estcpu=32, cpticks=3, pctcpu=0.3, user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 75264 92811 2982 0 2 0x40 syz-executor 51958 446877 19730 -1 2 0x10 syz-executor *51958 6051 19730 -1 7 0x4000010 syz-executor 51958 7485 19730 -1 3 0x4000090 fsleep syz-executor 51958 271851 19730 -1 7 0x4000010 syz-executor 55102 25268 35822 0 2 0xc80 syz-executor 55102 483384 35822 0 3 0x4000080 kqread syz-executor 49794 23968 35928 0 3 0x80 nanoslp syz-executor 49794 33449 35928 0 2 0x4000000 syz-executor 49794 401075 35928 0 3 0x4000080 fsleep syz-executor 2982 232339 76715 0 3 0x82 ppwait syz-executor 55404 56874 48842 0 3 0x80 nanoslp syz-executor 55404 522099 48842 0 3 0x4000080 sbwait syz-executor 55404 386245 48842 0 3 0x4000080 fsleep syz-executor 55590 365320 76715 0 2 0xc82 syz-executor 68739 388570 0 0 3 0x14200 acct acct 44943 96400 76715 0 2 0x2 syz-executor 48842 459612 76715 0 3 0x82 nanoslp syz-executor 19730 199972 76715 0 2 0xc82 syz-executor 17340 286211 76715 0 2 0x10000c82 syz-executor 35928 453503 76715 0 2 0xc82 syz-executor 35822 142878 76715 0 3 0x82 nanoslp syz-executor 76715 452476 49957 0 2 0x82 syz-executor 49957 294480 52495 0 3 0x10008a sigsusp ksh 52495 296628 15450 0 3 0x98 kqread sshd-session 15450 302963 82202 0 3 0x92 kqread sshd-session 25706 5235 1 0 3 0x100083 ttyopn getty 82202 185273 1 0 3 0x88 kqread sshd 46257 491902 3088 74 3 0x1100092 bpf pflogd 3088 487204 1 0 3 0x80 sbwait pflogd 41154 489494 13834 73 3 0x1100090 kqread syslogd 13834 251060 1 0 3 0x100082 sbwait syslogd 74567 246820 1 0 3 0x100080 kqread resolvd 61821 341899 47822 77 3 0x100092 kqread dhcpleased 84949 520868 47822 77 3 0x100092 kqread dhcpleased 47822 513806 1 0 3 0x80 kqread dhcpleased 3780 417219 0 0 3 0x14200 bored smr 9151 185329 0 0 2 0x14200 zerothread 16932 56199 0 0 3 0x14200 aiodoned aiodoned 18005 434878 0 0 3 0x14200 syncer update 90813 191185 0 0 3 0x14200 cleaner cleaner 72972 86511 0 0 3 0x14200 reaper reaper 95473 399604 0 0 3 0x14200 pgdaemon pagedaemon 55804 64664 0 0 3 0x14200 bored viomb 66890 151383 0 0 3 0x40014200 acpi0 acpi0 93549 25028 0 0 3 0x40014200 idle1 70341 257093 0 0 3 0x14200 bored softnet1 27395 110283 0 0 3 0x14200 bored softnet0 97891 219619 0 0 3 0x14200 bored systqmp 34101 119710 0 0 3 0x14200 bored systq 54300 5355 0 0 3 0x14200 tmoslp softclockmp 43911 235767 0 0 3 0x40014200 tmoslp softclock 34680 359476 0 0 3 0x40014200 idle0 1 514659 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff839d6a38) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #3 uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 #4 amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 #5 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #6 uvm_mapanon+0x85d sys/uvm/uvm_map.c:910 #7 uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029 #8 sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 Process 51958 (syz-executor) thread 0xffff80003c3fca80 (6051) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8394ad80) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 pool_get+0x27e sys/kern/subr_pool.c:595 #3 _rw_obj_alloc_flags+0x4d sys/kern/kern_rwlock.c:713 #4 amap_alloc+0xd6 sys/uvm/uvm_amap.c:-1 #5 amap_copy+0x6ac sys/uvm/uvm_amap.c:569 #6 uvm_fault_check+0x473 sys/uvm/uvm_fault.c:747 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #8 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283 #9 kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 #10 alltraps_kern_meltdown+0x7b #11 copyout+0x64 #12 kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442 #13 kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 #14 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 #15 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #16 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8388eab8) #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 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:191 #3 kern_sysctl_dirs+0x243 sys/kern/kern_sysctl.c:440 #4 kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 #5 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 Process 51958 (syz-executor) thread 0xffff80003c3fc550 (271851) exclusive kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11082 12222K 12398K 166960K 12855 0 pcb 18 13K 13K 166960K 113 0 rtable 218 9K 10K 166960K 499 0 pf 38 18K 20K 166960K 101 0 ifaddr 43 7K 8K 166960K 90 0 ifgroup 59 2K 2K 166960K 135 0 sysctl 4 1K 9K 166960K 10 0 counters 80 37K 37K 166960K 164 0 ioctlops 0 0K 4K 166960K 1594 0 iov 0 0K 24K 166960K 27 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1371 86K 86K 166960K 1909 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 22 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 584 0 sigio 0 0K 0K 166960K 13 0 proc 72 115K 196K 166960K 654 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 41 0 in_multi 88 6K 7K 166960K 144 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 494 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 229 167K 170K 166960K 7088 0 UVM aobj 20 4K 6K 166960K 24 0 pinsyscall 41 82K 104K 166960K 1803 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 28 0 NDP 14 0K 2K 166960K 64 0 temp 44 8676K 8762K 166960K 38026 0 kqueue 14 22K 30K 166960K 123 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 62 0 57 1 0 1 1 0 8 0 rtentry 176 154 0 62 6 0 6 6 0 8 0 unpcb 144 249 0 231 3 2 1 2 0 8 0 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpcb 736 156 0 151 8 7 1 7 0 8 0 arp 136 25 0 8 1 0 1 1 0 8 0 inpcb 328 674 0 660 14 5 9 9 0 8 7 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 152 36 0 12 2 0 2 2 0 8 0 pkpcb 40 7 0 7 2 1 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 37 0 32 2 1 1 1 0 8 0 pppxif 1504 2 0 2 1 1 0 1 0 8 0 pffrag 232 5 0 1 1 0 1 1 0 482 0 pffrnode 88 5 0 1 1 0 1 1 0 8 0 pffrent 40 8 0 4 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 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 680 0 272 32 3 29 30 0 8 0 art_table 40 682 0 272 5 0 5 5 0 8 0 art_node 32 154 0 72 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 19 0 9 1 0 1 1 0 8 0 shmpl 112 18 0 2 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2520 0 998 96 0 96 96 0 8 0 ffsino 296 2520 0 998 119 1 118 118 0 8 0 nchpl 144 3268 0 1545 64 0 64 64 0 8 0 rtmask 32 12 0 10 2 1 1 1 0 8 0 vnodes 216 2830 0 0 158 0 158 158 0 8 0 namei 1024 11222 0 11222 3 2 1 2 0 8 1 percpumem 16 97 0 42 1 0 1 1 0 8 0 vcpupl 3968 1 0 0 1 0 1 1 0 8 0 vmpool 848 3 0 2 1 0 1 1 0 8 0 kstatmem 264 84 0 54 4 1 3 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 15341 0 15338 10 2 8 8 1 8 7 plimitpl 152 151 0 134 1 0 1 1 0 8 0 sigapl 424 888 0 840 7 1 6 7 0 8 0 knotepl 120 498 0 0 16 0 16 16 0 8 0 kqueuepl 224 250 0 240 6 5 1 5 0 8 0 pipepl 344 168 0 141 3 0 3 3 0 8 0 fdescpl 528 871 0 841 3 0 3 3 0 8 0 filepl 160 5302 0 5073 18 4 14 16 0 8 3 lockfpl 104 216 0 214 2 1 1 2 0 8 0 lockfspl 48 100 0 98 1 0 1 1 0 8 0 sessionpl 144 28 0 19 1 0 1 1 0 8 0 pgrppl 48 49 0 32 1 0 1 1 0 8 0 ucredpl 104 993 0 978 1 0 1 1 0 8 0 zombiepl 144 912 0 910 1 0 1 1 0 8 0 processpl 1232 888 0 840 5 0 5 5 0 8 0 procpl 664 1600 0 1544 6 0 6 6 0 8 0 sosppl 176 1 0 1 1 1 0 1 0 8 0 sockpl 752 996 0 959 19 8 11 13 0 8 7 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 1153 0 0 73 0 73 73 0 8 0 bufpl 280 6142 0 130 430 0 430 430 0 8 0 anonpl 32 11207 0 0 91 0 91 91 0 246 0 amapchunkpl 152 22317 0 21774 30 5 25 29 0 158 0 amappl16 200 2978 0 2953 25 18 7 23 0 8 3 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 481 0 480 1 0 1 1 0 8 0 amappl12 168 1255 0 1214 3 0 3 3 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 55 0 40 1 0 1 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 34 0 32 1 0 1 1 0 8 0 amappl7 128 94 0 93 1 0 1 1 0 8 0 amappl6 120 329 0 315 1 0 1 1 0 8 0 amappl5 112 79 0 67 1 0 1 1 0 8 0 amappl4 104 442 0 413 1 0 1 1 0 8 0 amappl3 96 3845 0 3761 4 1 3 3 0 8 0 amappl2 88 997 0 919 2 0 2 2 0 8 0 amappl1 80 11640 0 11063 14 0 14 14 0 8 0 amappl 88 6231 0 6079 5 1 4 5 0 92 0 uvmvnodes 80 116 0 0 3 0 3 3 0 8 0 dma65536 65536 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 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 23 0 4 1 0 1 1 0 8 0 uaddrrnd 24 871 0 841 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 871 0 841 1 0 1 1 0 8 0 vmmpekpl 168 8771 0 8721 3 0 3 3 0 8 0 vmmpepl 168 62921 0 61066 109 8 101 109 0 357 9 vmsppl 488 870 0 841 5 0 5 5 0 8 0 rwobjpl 80 19964 0 18922 32 2 30 32 0 8 0 pdppl 4096 1756 0 1687 113 38 75 86 0 8 6 pvpl 32 19538 0 0 158 0 158 158 0 265 0 pmappl 256 873 0 843 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 359 0 54 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052 sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014 kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442 kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b37f7a9840, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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 __mp_lock(ffffffff8394a580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff8394a580) at __mp_lock+0x192 sys/kern/kern_lock.c:173 uvn_detach(fffffd806c1b8380) at uvn_detach+0x7e sys/uvm/uvm_vnode.c:-1 uvm_unmap_detach(ffff80003c468d20,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_mapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,0,3090713) at uvm_mapanon+0x85d sys/uvm/uvm_map.c:910 uvm_mmapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,3,7,5012,4662ce0aae21b798,fffffd806c7bc9a8) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029 sys_mmap(ffff80003c3fc550,ffff80003c4690b0,ffff80003c469000) at sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426 syscall(ffff80003c4690b0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4690b0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b405346b40, count: 4 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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 __mp_lock(ffffffff8394a580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff8394a580) at __mp_lock+0x192 sys/kern/kern_lock.c:173 uvn_detach(fffffd806c1b8380) at uvn_detach+0x7e sys/uvm/uvm_vnode.c:-1 uvm_unmap_detach(ffff80003c468d20,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_mapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,0,3090713) at uvm_mapanon+0x85d sys/uvm/uvm_map.c:910 uvm_mmapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,3,7,5012,4662ce0aae21b798,fffffd806c7bc9a8) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029 sys_mmap(ffff80003c3fc550,ffff80003c4690b0,ffff80003c469000) at sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426 syscall(ffff80003c4690b0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4690b0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b405346b40, count: -11