panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 67090 61442 60929 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8344b92f) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff834879a7,ffffffff8347dc67,90,ffffffff83426483) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagealloc_pg(fffffd800859d068,fffffd806c7c7238,94e3a000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707 uvm_pagealloc(fffffd806c7c7238,94e3a000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913 pmap_get_ptp(fffffd806c7c7200,129c74b0000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1 pmap_enter(fffffd806c7c7200,129c74b0000,5e4d5000,3,20) at pmap_enter+0x38a sys/arch/amd64/amd64/pmap.c:-1 uvm_fault_upper_lookup(ffff80003abe5a10,ffff80003abe5a48,ffff80003abe5910,ffff80003abe5990) at uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1 uvm_fault(fffffd80600f6ba0,129c74ac000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:632 upageflttrap(ffff80003abe5bb0,129c74acd28) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003abe5bb0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7bbeeff00250, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8344b92f) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff834879a7,ffffffff8347dc67,90,ffffffff83426483) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagealloc_pg(fffffd800859d068,fffffd806c7c7238,94e3a000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707 uvm_pagealloc(fffffd806c7c7238,94e3a000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913 pmap_get_ptp(fffffd806c7c7200,129c74b0000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1 pmap_enter(fffffd806c7c7200,129c74b0000,5e4d5000,3,20) at pmap_enter+0x38a sys/arch/amd64/amd64/pmap.c:-1 uvm_fault_upper_lookup(ffff80003abe5a10,ffff80003abe5a48,ffff80003abe5910,ffff80003abe5990) at uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1 uvm_fault(fffffd80600f6ba0,129c74ac000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:632 upageflttrap(ffff80003abe5bb0,129c74acd28) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003abe5bb0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7bbeeff00250, count: -12 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003abe5540 rbx 0xffffffff83888e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff800037bc8a98 rax 0xffffffff83887ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x660d2ebc9011937d r11 0x5c610f81c3a2c2d2 r12 0xffffffff83888c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff811f5155 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003abe5530 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=67090 pid=61442 tcnt=2 stat=onproc flags process=10 proc=0 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800037bc8d30,0xffff800037bc8048 process=0xffff80003c4704f8 user=0xffff80003abe0000, vmspace=0xfffffd80600f6ba0 estcpu=34, cpticks=6, pctcpu=0.3, user=4, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85306 467340 91986 0 2 0 syz-executor 85306 63750 91986 0 3 0x4000080 fsleep syz-executor 36686 284704 8826 0 2 0x1 syz-executor 36686 270514 8826 0 3 0x4000080 fsleep syz-executor 1608 397316 98345 0 2 0 syz-executor 1608 133640 98345 0 3 0x4000080 fsleep syz-executor 65194 48215 18919 0 2 0 syz-executor 65194 509716 18919 0 3 0x4000080 fsleep syz-executor 79902 249410 71968 0 2 0x1 syz-executor 79902 222975 71968 0 3 0x4000080 fsleep syz-executor 79902 227718 71968 0 3 0x4000080 fsleep syz-executor *61442 67090 83511 60929 7 0x10 syz-executor 61442 471429 83511 60929 3 0x4000090 fsleep syz-executor 26153 24896 29982 0 2 0x1 syz-executor 26153 492039 29982 0 3 0x4000080 fsleep syz-executor 33927 303432 28346 0 2 0x1 syz-executor 33927 493891 28346 0 3 0x4000080 fsleep syz-executor 33927 433178 28346 0 3 0x4000080 fsleep syz-executor 63181 420131 1 0 3 0x100083 ttyin getty 51826 350282 0 0 3 0x14200 acct acct 71968 346323 97483 0 3 0x82 nanoslp syz-executor 83511 11683 97483 0 3 0x82 nanoslp syz-executor 98345 459103 97483 0 3 0x82 nanoslp syz-executor 91986 459352 97483 0 3 0x82 nanoslp syz-executor 28346 234780 97483 0 3 0x82 nanoslp syz-executor 18919 497587 97483 0 3 0x82 nanoslp syz-executor 8826 74774 97483 0 3 0x82 nanoslp syz-executor 29982 140773 97483 0 3 0x82 nanoslp syz-executor 97483 157196 63976 0 3 0x82 kqread syz-executor 63976 165677 28228 0 3 0x10008a sigsusp ksh 28228 170324 29864 0 3 0x98 kqread sshd-session 29864 240946 4465 0 3 0x92 kqread sshd-session 4465 478708 1 0 3 0x88 kqread sshd 58911 126926 17344 74 3 0x1100092 bpf pflogd 17344 312073 1 0 3 0x80 sbwait pflogd 73089 489198 60212 73 3 0x1100090 kqread syslogd 60212 435725 1 0 3 0x100082 sbwait syslogd 90703 26576 1 0 3 0x100080 kqread resolvd 60496 506969 49525 77 3 0x100092 kqread dhcpleased 67187 519242 49525 77 3 0x100092 kqread dhcpleased 49525 398544 1 0 3 0x80 kqread dhcpleased 88633 321827 0 0 3 0x14200 bored smr 15961 408439 0 0 2 0x14200 zerothread 72333 226372 0 0 3 0x14200 aiodoned aiodoned 76105 96628 0 0 3 0x14200 syncer update 49331 326605 0 0 3 0x14200 cleaner cleaner 81080 263461 0 0 3 0x14200 reaper reaper 89205 487185 0 0 3 0x14200 pgdaemon pagedaemon 92568 423686 0 0 3 0x14200 bored viomb 49999 319731 0 0 3 0x40014200 acpi0 acpi0 10193 379343 0 0 7 0x40014200 idle1 86075 390288 0 0 3 0x14200 bored softnet1 66316 165363 0 0 3 0x14200 bored softnet0 65491 32961 0 0 3 0x14200 bored systqmp 35933 145506 0 0 3 0x14200 bored systq 94273 237672 0 0 3 0x14200 tmoslp softclockmp 65916 4699 0 0 3 0x40014200 tmoslp softclock 1230 81869 0 0 3 0x40014200 idle0 1 69600 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c7c7210) #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 pmap_enter+0x24b rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_enter+0x24b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #2 pmap_enter+0x24b sys/arch/amd64/amd64/pmap.c:2767 #3 uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1 #4 uvm_fault+0x159 sys/uvm/uvm_fault.c:632 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 61442 (syz-executor) thread 0xffff800037bc8a98 (67090) shared rwlock amaplk r = 0 (0xfffffd806c7d4d98) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvm_fault_check+0x8a9 sys/uvm/uvm_fault.c:834 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd80600f6ca0) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c7c7210) #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 pmap_enter+0x24b rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_enter+0x24b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #2 pmap_enter+0x24b sys/arch/amd64/amd64/pmap.c:2767 #3 uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1 #4 uvm_fault+0x159 sys/uvm/uvm_fault.c:632 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11106 12179K 12521K 166960K 13956 0 pcb 18 16K 18K 166960K 510 0 rtable 279 14K 15K 166960K 745 0 pf 40 19K 22K 166960K 232 0 ifaddr 44 8K 9K 166960K 134 0 ifgroup 52 2K 2K 166960K 250 0 sysctl 4 1K 9K 166960K 14 0 counters 70 37K 38K 166960K 254 0 ioctlops 0 0K 5K 166960K 2099 0 iov 0 0K 24K 166960K 250 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1404 88K 89K 166960K 2879 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 134 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 1785 0 sigio 0 0K 0K 166960K 22 0 proc 72 115K 180K 166960K 775 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 246 0 in_multi 102 7K 7K 166960K 220 0 ether_multi 1 0K 0K 166960K 32 0 mrt 2 0K 0K 166960K 47 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 628 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 243 167K 188K 166960K 17913 0 UVM aobj 22 12K 12K 166960K 24 0 pinsyscall 43 86K 104K 166960K 3020 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 208 0 NDP 12 0K 2K 166960K 93 0 temp 80 9084K 9175K 166960K 92921 0 kqueue 16 24K 32K 166960K 366 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 120 224 0 220 3 2 1 3 0 8 0 rtentry 176 190 0 84 6 0 6 6 0 8 0 unpcb 144 1173 0 1149 10 9 1 6 0 8 0 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 736 573 0 566 17 12 5 7 0 8 3 arp 136 27 0 10 1 0 1 1 0 8 0 inpcb 328 2129 0 2117 18 13 5 10 0 8 3 nd6 152 36 0 8 2 0 2 2 0 8 0 pkpcb 40 9 0 9 5 4 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 65 0 65 4 3 1 1 0 8 1 pppxif 1504 12 0 12 3 3 0 1 0 8 0 pfstscr 40 3 0 2 2 1 1 1 0 8 0 pffrag 232 25 0 11 1 0 1 1 0 482 0 pffrnode 88 24 0 10 1 0 1 1 0 8 0 pffrent 40 168 0 153 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 pfrktable 1344 4 0 2 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 106 0 57 1 0 1 1 0 8 0 pfstkey 128 109 0 60 3 0 3 3 0 8 0 pfstate 448 106 0 59 8 0 8 8 0 8 0 pfrule 1360 33 0 25 2 1 1 2 0 8 0 rttmr 136 7 0 7 4 3 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 692 0 229 34 4 30 31 0 8 0 art_table 40 696 0 229 5 0 5 5 0 8 0 art_node 32 183 0 87 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 8 2 1 1 1 0 8 0 semupl 112 4 0 4 2 2 0 1 0 8 0 semapl 112 129 0 119 1 0 1 1 0 8 0 shmpl 112 16 0 1 1 0 1 1 0 8 0 dirhash 1024 42 0 25 3 0 3 3 0 8 0 dino2pl 256 4836 0 3375 93 0 93 93 0 8 0 ffsino 296 4836 0 3375 114 0 114 114 0 8 0 nchpl 144 7201 0 5508 64 0 64 64 0 8 0 rtmask 32 10 0 10 4 4 0 1 0 8 0 vnodes 216 5690 0 0 317 0 317 317 0 8 0 namei 1024 24333 0 24333 4 3 1 2 0 8 1 percpumem 16 142 0 92 1 0 1 1 0 8 0 vcpupl 3968 5 0 1 1 0 1 1 0 8 0 vmpool 848 5 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 kstatmem 264 146 0 120 6 4 2 3 0 8 0 scsiplug 72 9 0 9 3 3 0 1 0 8 0 scxspl 216 34203 0 34202 12 11 1 8 1 8 0 plimitpl 152 477 0 458 1 0 1 1 0 8 0 sigapl 424 2111 0 2062 9 3 6 8 0 8 0 knotepl 120 572 0 0 18 0 18 18 0 8 0 kqueuepl 224 751 0 740 11 10 1 5 0 8 0 pipepl 344 388 0 361 12 9 3 9 0 8 0 fdescpl 528 2059 0 2027 3 0 3 3 0 8 0 filepl 160 13464 0 13241 25 12 13 20 0 8 1 lockfpl 104 723 0 721 2 1 1 2 0 8 0 lockfspl 48 290 0 288 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 58 0 41 1 0 1 1 0 8 0 ucredpl 104 2339 0 2325 1 0 1 1 0 8 0 zombiepl 144 2225 0 2225 1 0 1 1 0 8 1 processpl 1232 2111 0 2062 7 3 4 6 0 8 0 procpl 664 4803 0 4744 9 3 6 8 0 8 0 sosppl 176 7 0 7 4 4 0 1 0 8 0 sockpl 752 3644 0 3604 36 27 9 24 0 8 4 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 130 0 0 17 0 17 17 0 8 0 mcl2k 2048 39 0 0 5 0 5 5 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 350 0 0 22 0 22 22 0 8 0 bufpl 280 11700 0 5570 439 0 439 439 0 8 0 anonpl 32 8129 0 0 66 0 66 66 0 246 0 amapchunkpl 152 59340 0 58826 41 14 27 30 0 158 5 amappl16 200 4711 0 4675 48 36 12 17 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 463 0 462 1 0 1 1 0 8 0 amappl13 176 137 0 125 1 0 1 1 0 8 0 amappl12 168 2328 0 2297 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 65 0 51 1 0 1 1 0 8 0 amappl9 144 269 0 269 1 1 0 1 0 8 0 amappl8 136 139 0 136 1 0 1 1 0 8 0 amappl7 128 168 0 155 1 0 1 1 0 8 0 amappl6 120 175 0 174 1 0 1 1 0 8 0 amappl5 112 109 0 98 1 0 1 1 0 8 0 amappl4 104 340 0 318 1 0 1 1 0 8 0 amappl3 96 10832 0 10728 3 0 3 3 0 8 0 amappl2 88 2222 0 2143 2 0 2 2 0 8 0 amappl1 80 17871 0 17255 20 6 14 17 0 8 0 amappl 88 16806 0 16634 5 0 5 5 0 92 0 uvmvnodes 80 162 0 0 4 0 4 4 0 8 0 dma16384 16384 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 10 0 10 4 4 0 1 0 8 0 dma128 128 258 0 258 5 4 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 23 0 2 1 0 1 1 0 8 0 uaddrrnd 24 2059 0 2027 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2059 0 2027 1 0 1 1 0 8 0 vmmpekpl 168 18626 0 18588 3 0 3 3 0 8 0 vmmpepl 168 134446 0 132452 124 24 100 100 0 357 11 vmsppl 488 2058 0 2027 7 2 5 5 0 8 0 rwobjpl 80 35378 0 34239 33 4 29 29 0 8 0 pdppl 4096 4135 0 4060 131 55 76 85 0 8 1 pvpl 32 16474 0 0 133 0 133 133 0 265 0 pmappl 256 2063 0 2028 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 360 0 86 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8344b92f) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff834879a7,ffffffff8347dc67,90,ffffffff83426483) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagealloc_pg(fffffd800859d068,fffffd806c7c7238,94e3a000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707 uvm_pagealloc(fffffd806c7c7238,94e3a000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913 pmap_get_ptp(fffffd806c7c7200,129c74b0000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1 pmap_enter(fffffd806c7c7200,129c74b0000,5e4d5000,3,20) at pmap_enter+0x38a sys/arch/amd64/amd64/pmap.c:-1 uvm_fault_upper_lookup(ffff80003abe5a10,ffff80003abe5a48,ffff80003abe5910,ffff80003abe5990) at uvm_fault_upper_lookup+0x30d sys/uvm/uvm_fault.c:-1 uvm_fault(fffffd80600f6ba0,129c74ac000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:632 upageflttrap(ffff80003abe5bb0,129c74acd28) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003abe5bb0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7bbeeff00250, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299bdff0) 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299bdff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299bdff0) 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299bdff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5