panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *456224 85961 0 0x2 0 0 syz-executor.7 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828a1748) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8292cf07,ffffffff82892558,90,ffffffff82877fd4) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_pagealloc_pg(fffffd80074ecd20,fffffd8067606610,345706000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline] uvm_pagealloc_pg(fffffd80074ecd20,fffffd8067606610,345706000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:709 uvm_pagealloc(fffffd8067606610,345706000,0,3) at uvm_pagealloc+0x1ec sys/uvm/uvm_page.c:917 pmap_get_ptp(fffffd80676065e0,68ae0c19000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 pmap_enter(fffffd80676065e0,68ae0c19000,61f50000,3,20) at pmap_enter+0x2be sys/arch/amd64/amd64/pmap.c:2722 uvm_fault_upper_lookup(ffff800035825930,ffff800035825968,ffff800035825830,ffff8000358258b0) at uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895 uvm_fault(fffffd80696163a0,68ae0c1a000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff800035825ab0,68ae0c1a700) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800035825ab0) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ab9e43ad170, 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828a1748) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8292cf07,ffffffff82892558,90,ffffffff82877fd4) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_pagealloc_pg(fffffd80074ecd20,fffffd8067606610,345706000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline] uvm_pagealloc_pg(fffffd80074ecd20,fffffd8067606610,345706000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:709 uvm_pagealloc(fffffd8067606610,345706000,0,3) at uvm_pagealloc+0x1ec sys/uvm/uvm_page.c:917 pmap_get_ptp(fffffd80676065e0,68ae0c19000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 pmap_enter(fffffd80676065e0,68ae0c19000,61f50000,3,20) at pmap_enter+0x2be sys/arch/amd64/amd64/pmap.c:2722 uvm_fault_upper_lookup(ffff800035825930,ffff800035825968,ffff800035825830,ffff8000358258b0) at uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895 uvm_fault(fffffd80696163a0,68ae0c1a000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff800035825ab0,68ae0c1a700) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800035825ab0) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ab9e43ad170, count: -12 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800035825450 rbx 0xffffffff82c98cb7 cpu_info_full_primary+0x2cb7 rdx 0 rcx 0xffff80002a145558 rax 0xffffffff82c97ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9c180ec8591e808 r11 0x71a340409b41b865 r12 0xffffffff82c98ab8 cpu_info_full_primary+0x2ab8 r13 0 r14 0 r15 0x1 rip 0xffffffff820163fc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800035825440 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.7) tid=456224 pid=85961 tcnt=1 stat=onproc flags process=2 proc=0 runpri=82, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a1d22b0,0xffff80002bcd8810 process=0xffff8000ffff1658 user=0xffff800035820000, vmspace=0xfffffd80696163a0 estcpu=33, cpticks=1, pctcpu=0.3, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 42296 33514 14401 0 2 0 syz-executor.5 99996 522783 63183 0 2 0 syz-executor.3 99996 145394 63183 0 3 0x4000080 netio syz-executor.3 52853 333393 59555 0 3 0x80 nanoslp syz-executor.6 52853 3591 59555 0 3 0x4000080 netcon syz-executor.6 52853 493852 59555 0 3 0x4000080 fsleep syz-executor.6 4994 443717 62028 0 3 0x80 nanoslp syz-executor.1 4994 238585 62028 0 3 0x4000080 ttyin syz-executor.1 4994 157081 62028 0 3 0x4000080 ttyout syz-executor.1 4994 163493 62028 0 3 0x4000080 fsleep syz-executor.1 *85961 456224 43264 0 7 0x2 syz-executor.7 63183 369214 43264 0 3 0x82 nanoslp syz-executor.3 23788 248783 43264 0 3 0x82 nanoslp syz-executor.2 59555 384653 43264 0 3 0x82 nanoslp syz-executor.6 62028 203235 43264 0 3 0x82 nanoslp syz-executor.1 38479 413487 43264 0 3 0x82 nanoslp syz-executor.4 84306 158923 1 0 3 0x100083 ttyin getty 14401 495371 43264 0 3 0x82 nanoslp syz-executor.5 63643 59149 0 0 3 0x14280 nfsidl nfsio 85385 319230 0 0 3 0x14280 nfsidl nfsio 9055 25071 0 0 3 0x14280 nfsidl nfsio 85678 150941 0 0 3 0x14280 nfsidl nfsio 32159 389094 0 0 3 0x14280 nfsidl nfsio 7848 69458 0 0 3 0x14280 nfsidl nfsio 17171 289431 0 0 3 0x14280 nfsidl nfsio 40467 455540 0 0 3 0x14280 nfsidl nfsio 57160 264871 0 0 3 0x14280 nfsidl nfsio 87274 158379 0 0 3 0x14280 nfsidl nfsio 7425 403606 0 0 3 0x14280 nfsidl nfsio 55578 288782 0 0 3 0x14280 nfsidl nfsio 25910 510609 0 0 3 0x14280 nfsidl nfsio 15483 426968 0 0 3 0x14280 nfsidl nfsio 78497 242908 0 0 3 0x14280 nfsidl nfsio 70953 254388 43264 0 2 0x2 syz-executor.0 9965 141968 1 0 4 0x82000 syz-executor.1 9965 69394 1 0 4 0x4082000 syz-executor.1 9965 262870 1 0 3 0x4002000 suspend syz-executor.1 9965 83388 1 0 4 0x4082000 syz-executor.1 9965 520700 1 0 4 0x4002000 syz-executor.1 9965 13795 1 0 4 0x4082000 syz-executor.1 9965 307437 1 0 4 0x4082000 syz-executor.1 9965 438197 1 0 4 0x4082000 syz-executor.1 30313 344508 0 0 3 0x14200 bored sosplice 475 42744 0 0 3 0x14280 nfsidl nfsio 18920 104141 0 0 3 0x14280 nfsidl nfsio 25030 141332 0 0 3 0x14280 nfsidl nfsio 66894 405498 0 0 3 0x14280 nfsidl nfsio 84704 22099 0 0 3 0x14280 nfsidl nfsio 50325 470200 86730 0 3 0x100082 netio ndp 86730 402065 1 0 3 0x10008a sigsusp sh 43264 391014 63510 0 3 0x2000082 wait syz-fuzzer 43264 201056 63510 0 3 0x6000082 thrsleep syz-fuzzer 43264 132054 63510 0 3 0x6000082 wait syz-fuzzer 43264 248501 63510 0 3 0x6000082 wait syz-fuzzer 43264 506039 63510 0 3 0x6000082 thrsleep syz-fuzzer 43264 286823 63510 0 3 0x6000082 wait syz-fuzzer 43264 460289 63510 0 3 0x6000082 wait syz-fuzzer 43264 9127 63510 0 3 0x6000082 thrsleep syz-fuzzer 43264 48613 63510 0 3 0x6000082 kqread syz-fuzzer 43264 512875 63510 0 3 0x6000082 thrsleep syz-fuzzer 43264 373942 63510 0 3 0x6000082 thrsleep syz-fuzzer 43264 110178 63510 0 3 0x6000082 thrsleep syz-fuzzer 43264 267407 63510 0 3 0x6000082 wait syz-fuzzer 43264 48190 63510 0 3 0x6000082 thrsleep syz-fuzzer 43264 259159 63510 0 3 0x6000082 wait syz-fuzzer 43264 5952 63510 0 3 0x6000082 wait syz-fuzzer 63510 450860 75395 0 3 0x10008a sigsusp ksh 75395 291271 43856 0 3 0x9a kqread sshd 43856 175731 1 0 3 0x88 kqread sshd 36875 478260 2616 74 3 0x1100092 bpf pflogd 2616 361324 1 0 3 0x80 netio pflogd 37792 325583 22903 73 3 0x1100090 kqread syslogd 22903 97216 1 0 3 0x100082 netio syslogd 73590 262652 1 0 3 0x100080 kqread resolvd 89161 232023 6491 77 3 0x100092 kqread dhcpleased 24573 53945 6491 77 3 0x100092 kqread dhcpleased 6491 1447 1 0 3 0x80 kqread dhcpleased 61220 287367 0 0 3 0x14200 bored smr 44273 25093 0 0 2 0x14200 zerothread 77180 374153 0 0 3 0x14200 aiodoned aiodoned 75264 144522 0 0 3 0x14200 syncer update 15883 467277 0 0 3 0x14200 cleaner cleaner 31806 51265 0 0 3 0x14200 reaper reaper 74157 25585 0 0 3 0x14200 pgdaemon pagedaemon 87297 146289 0 0 3 0x14200 bored viomb 75052 453756 0 0 3 0x40014200 acpi0 acpi0 29431 317527 0 0 7 0x40014200 idle1 33269 519775 0 0 3 0x14200 bored softnet3 30419 443882 0 0 3 0x14200 bored softnet2 79838 483755 0 0 3 0x14200 bored softnet1 97683 297246 0 0 3 0x14200 bored softnet0 67542 205705 0 0 3 0x14200 bored systqmp 72520 36191 0 0 3 0x14200 bored systq 90231 509757 0 0 3 0x14200 tmoslp softclockmp 81806 259566 0 0 3 0x40014200 tmoslp softclock 88824 205470 0 0 3 0x40014200 idle0 1 405900 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd80676065f0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c3 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:423 [inline] #3 pmap_enter+0x1c3 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895 #5 uvm_fault+0x129 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 85961 (syz-executor.7) thread 0xffff80002a145558 (456224) exclusive rwlock amaplk r = 0 (0xfffffd80613538d8) #0 witness_lock+0x447 #1 uvm_fault_check+0x41a sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8069616498) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd80676065f0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c3 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:423 [inline] #3 pmap_enter+0x1c3 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895 #5 uvm_fault+0x129 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10204 6496K 8611K 166960K 26918 0 pcb 15 24K 29K 166960K 3890 0 rtable 252 15K 16K 166960K 4663 0 pf 37 10K 11K 166960K 424 0 ifaddr 47 17K 18K 166960K 454 0 ifgroup 64 2K 3K 166960K 688 0 sysctl 4 1K 1K 166960K 12 0 counters 68 36K 37K 166960K 438 0 ioctlops 0 0K 4K 166960K 4569 0 iov 0 0K 32K 166960K 2815 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1752 110K 110K 166960K 11738 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 307 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 3367 0 dirhash 12 2K 2K 166960K 87 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 93K 166960K 31493 0 sigio 0 0K 0K 166960K 883 0 proc 74 91K 116K 166960K 3434 0 subproc 130 8K 8K 166960K 1070 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1639 0 in_multi 99 7K 7K 166960K 1556 0 ether_multi 1 0K 0K 166960K 41 0 mrt 6 0K 0K 166960K 40 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 4550 0 pfkey data 0 0K 0K 166960K 110 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 726 263K 264K 166960K 300795 0 UVM aobj 131 4K 4K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1049 0 NDP 16 0K 2K 166960K 349 0 temp 78 6772K 6904K 166960K 287909 0 kqueue 12 18K 30K 166960K 2674 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 1580 0 1576 21 20 1 3 0 8 0 rtentry 112 1276 0 1162 5 1 4 4 0 8 0 unpcb 144 20762 0 20745 196 190 6 10 0 8 5 syncache 336 228 0 228 49 48 1 1 0 8 1 tcpqe 32 303 0 303 39 38 1 1 0 8 1 tcpcb 808 10207 0 10191 274 266 8 15 0 8 6 arp 120 311 0 289 1 0 1 1 0 8 0 ipq 40 3 0 3 1 1 0 1 0 8 0 ipqe 40 9 0 9 1 1 0 1 0 8 0 inpcb 392 29787 0 29767 447 436 11 22 0 8 8 nd6 136 232 0 208 1 0 1 1 0 8 0 pkpcb 40 195 0 195 15 15 0 1 0 8 0 kcovpl 48 82 0 72 1 0 1 1 0 8 0 ppxss 1168 65 0 65 19 19 0 1 0 8 0 pffrag 232 285 0 281 12 11 1 2 0 482 0 pffrnode 88 260 0 256 11 10 1 1 0 8 0 pffrent 40 682 0 678 12 11 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 24 754 0 719 1 0 1 1 0 8 0 pfstkey 128 754 0 719 5 3 2 2 0 8 0 pfstate 376 754 0 719 21 17 4 5 0 8 0 pfrule 1344 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 4052 0 3568 61 30 31 31 0 8 0 art_table 32 4053 0 3568 4 0 4 4 0 8 0 art_node 16 1241 0 1137 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 0 1 0 1 1 0 8 0 semapl 112 3365 0 3355 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 67 0 50 3 0 3 3 0 8 0 dino2pl 256 41933 0 40407 96 0 96 96 0 8 0 ffsino 272 41933 0 40407 103 0 103 103 0 8 0 nchpl 144 84738 0 83081 64 0 64 64 0 8 0 uvmvnodes 80 34768 0 0 710 0 710 710 0 8 0 vnodes 216 34768 0 0 1932 0 1932 1932 0 8 0 namei 1024 278601 0 278601 14 13 1 2 0 8 1 percpumem 16 233 0 185 1 0 1 1 0 8 0 vcpupl 2048 521 0 9 65 0 65 65 0 8 0 vmpool 696 540 0 28 48 1 47 47 0 8 0 kstatmem 264 398 0 370 5 2 3 3 0 8 0 scxspl 216 297122 0 297122 63 62 1 8 1 8 1 plimitpl 152 3481 0 3463 1 0 1 1 0 8 0 sigapl 424 31716 0 31645 9 0 9 9 0 8 0 futexpl 64 274071 0 274069 5 4 1 1 0 8 0 knotepl 120 1528 0 0 23 9 14 19 0 8 0 kqueuepl 216 6871 0 6863 99 98 1 8 0 8 0 pipepl 320 5942 0 5909 166 162 4 11 0 8 1 fdescpl 496 31644 0 31614 5 0 5 5 0 8 0 filepl 152 190250 0 189965 288 271 17 25 0 8 4 lockfpl 104 6206 0 6203 9 8 1 2 0 8 0 lockfspl 48 1863 0 1860 1 0 1 1 0 8 0 sessionpl 144 95 0 76 1 0 1 1 0 8 0 pgrppl 48 585 0 566 1 0 1 1 0 8 0 ucredpl 104 30039 0 30025 1 0 1 1 0 8 0 zombiepl 144 31647 0 31645 5 4 1 1 0 8 0 processpl 1136 31716 0 31645 6 0 6 6 0 8 0 procpl 680 82546 0 82447 20 10 10 11 0 8 0 srpgc 96 75 0 75 25 25 0 1 0 8 0 sosppl 168 1158 0 1158 23 23 0 1 0 8 0 sockpl 584 52421 0 52384 477 464 13 22 0 8 9 mcl64k 65536 41 0 0 3 0 3 3 0 8 0 mcl16k 16384 39 0 0 4 2 2 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 96 0 0 11 6 5 10 0 8 0 mcl4k 4096 41 0 0 3 0 3 3 0 8 0 mcl2k2 2112 18 0 0 2 0 2 2 0 8 0 mcl2k 2048 553 0 0 33 21 12 33 0 8 0 mtagpl 96 473 0 0 7 1 6 6 0 8 0 mbufpl 256 2359 0 0 79 0 79 79 0 8 0 bufpl 280 75709 0 69097 473 0 473 473 0 8 0 anonpl 24 3072456 0 3059516 267 148 119 139 0 186 0 amapchunkpl 152 951053 0 950195 148 97 51 56 0 158 9 amappl16 200 67537 0 66859 328 279 49 62 0 8 8 amappl15 192 16 0 16 3 3 0 1 0 8 0 amappl14 184 458 0 436 4 2 2 2 0 8 0 amappl13 176 36 0 36 4 4 0 1 0 8 0 amappl12 168 33375 0 33334 20 17 3 3 0 8 0 amappl11 160 65 0 50 1 0 1 1 0 8 0 amappl10 152 124 0 99 1 0 1 1 0 8 0 amappl9 144 369 0 368 1 0 1 1 0 8 0 amappl8 136 1318 0 1122 8 1 7 8 0 8 0 amappl7 128 443 0 415 2 0 2 2 0 8 0 amappl6 120 1540 0 1517 1 0 1 1 0 8 0 amappl5 112 650 0 639 1 0 1 1 0 8 0 amappl4 104 1266 0 1229 3 1 2 2 0 8 0 amappl3 96 181118 0 181029 7 3 4 4 0 8 0 amappl2 88 38840 0 38749 5 2 3 3 0 8 0 amappl1 80 125927 0 125334 23 9 14 23 0 8 0 amappl 88 298396 0 298138 11 3 8 8 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 32184 0 31642 4 0 4 4 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 32184 0 31642 4 0 4 4 0 8 0 vmmpekpl 168 208125 0 207978 7 0 7 7 0 8 0 vmmpepl 168 1868264 0 1865177 747 578 169 183 0 357 6 vmsppl 448 32183 0 31642 62 1 61 61 0 8 0 rwobjpl 56 470355 0 433426 543 21 522 522 0 8 1 pdppl 4096 64375 0 63796 1630 1042 588 589 0 8 9 pvpl 32 43349 0 0 353 3 350 350 0 265 0 pmappl 248 32183 0 31642 36 1 35 35 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3010 0 1924 32 0 32 32 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828a1748) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8292cf07,ffffffff82892558,90,ffffffff82877fd4) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_pagealloc_pg(fffffd80074ecd20,fffffd8067606610,345706000,0) at uvm_pagealloc_pg+0x427 uvm_pageinsert sys/uvm/uvm_page.c:138 [inline] uvm_pagealloc_pg(fffffd80074ecd20,fffffd8067606610,345706000,0) at uvm_pagealloc_pg+0x427 sys/uvm/uvm_page.c:709 uvm_pagealloc(fffffd8067606610,345706000,0,3) at uvm_pagealloc+0x1ec sys/uvm/uvm_page.c:917 pmap_get_ptp(fffffd80676065e0,68ae0c19000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 pmap_enter(fffffd80676065e0,68ae0c19000,61f50000,3,20) at pmap_enter+0x2be sys/arch/amd64/amd64/pmap.c:2722 uvm_fault_upper_lookup(ffff800035825930,ffff800035825968,ffff800035825830,ffff8000358258b0) at uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895 uvm_fault(fffffd80696163a0,68ae0c1a000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff800035825ab0,68ae0c1a700) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800035825ab0) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ab9e43ad170, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800029cebff0) at sched_idle+0x41e sys/kern/kern_sched.c:183 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800029cebff0) at sched_idle+0x41e sys/kern/kern_sched.c:183 end trace frame: 0x0, count: -5