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 * 47057 37731 0 0x8000000 0 1 syz-executor 52505 13598 0 0x14000 0x40000200 0 softclock db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e431b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309755d,ffffffff8303d971,90,ffffffff8309d659) at __assert+0x29 uvm_pagealloc_pg(fffffd8008506d00,fffffd806d188530,1e311000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806d188530,1e311000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806d1884e0,78c46dbce000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806d1884e0,78c46dbce000,5d11c000,1,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a146380,ffff80002a1463b8,ffff80002a146280,ffff80002a146300) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd805b459008,78c46dbcf000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a146500,78c46dbcfb80) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a146500) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x78c46dbcfba0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e431b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309755d,ffffffff8303d971,90,ffffffff8309d659) at __assert+0x29 uvm_pagealloc_pg(fffffd8008506d00,fffffd806d188530,1e311000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806d188530,1e311000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806d1884e0,78c46dbce000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806d1884e0,78c46dbce000,5d11c000,1,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a146380,ffff80002a1463b8,ffff80002a146280,ffff80002a146300) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd805b459008,78c46dbcf000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a146500,78c46dbcfb80) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a146500) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x78c46dbcfba0, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a145ea0 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff80002a3771f8 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x2a26f45b383cd1b8 r11 0x9144ec66ea68611b r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff817d2525 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a145e90 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=47057 pid=37731 tcnt=2 stat=onproc flags process=8000000 proc=0 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a376550,0xffff80002a3762d8 process=0xffff80002ac21220 user=0xffff80002a141000, vmspace=0xfffffd805b459008 estcpu=36, cpticks=6, pctcpu=0.0, user=4, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 25001 376594 45876 0 3 0x8000080 nanoslp syz-executor 25001 122289 45876 0 3 0xc000080 fsleep syz-executor 25001 510528 45876 0 3 0xc000080 fsleep syz-executor 25001 122646 45876 0 3 0xc000080 fsleep syz-executor 74844 126852 74726 0 2 0x8000000 syz-executor 74844 438129 74726 0 2 0xc000000 syz-executor 97867 36306 10034 0 2 0x8000000 syz-executor 97867 29225 10034 0 3 0xc000080 pipewr syz-executor 34497 332673 47706 0 2 0x8000000 syz-executor 34497 523586 47706 0 3 0xc000080 pipewr syz-executor *37731 47057 9284 0 7 0x8000000 syz-executor 37731 266684 9284 0 3 0xc000080 sbwait syz-executor 62457 475012 87825 0 3 0x8000080 nanoslp syz-executor 62457 357158 87825 0 3 0xc000080 sbwait syz-executor 62457 187500 87825 0 3 0xc000080 fsleep syz-executor 57563 283426 48976 0 2 0x8000000 syz-executor 57563 343998 48976 0 3 0xc000080 pppxread syz-executor 57563 394935 48976 0 3 0xc000080 fsleep syz-executor 71538 357171 40911 0 2 0x8000000 syz-executor 71538 78529 40911 0 3 0xc000080 netacc syz-executor 71538 378479 40911 0 3 0xc000080 fsleep syz-executor 71538 305761 40911 0 3 0xc000080 fsleep syz-executor 48976 34731 25693 0 3 0x8000082 nanoslp syz-executor 10034 248245 25693 0 2 0x8000482 syz-executor 74726 313081 25693 0 3 0x8000082 nanoslp syz-executor 45876 294045 25693 0 2 0x8000482 syz-executor 9284 79555 25693 0 3 0x8000082 nanoslp syz-executor 87825 522003 25693 0 3 0x8000082 nanoslp syz-executor 40911 35930 25693 0 3 0x8000082 nanoslp syz-executor 47706 274208 25693 0 3 0x8000082 nanoslp syz-executor 12531 344750 1 0 3 0x18100083 ttyin getty 25641 70508 0 0 3 0x14200 acct acct 52278 462341 0 0 3 0x14280 nfsidl nfsio 50296 461397 0 0 3 0x14280 nfsidl nfsio 16997 454843 0 0 3 0x14280 nfsidl nfsio 14199 205878 0 0 3 0x14280 nfsidl nfsio 57614 356119 0 0 3 0x14280 nfsidl nfsio 27659 507154 0 0 3 0x14280 nfsidl nfsio 60414 237528 0 0 3 0x14280 nfsidl nfsio 87031 424674 0 0 3 0x14280 nfsidl nfsio 8488 206016 0 0 3 0x14280 nfsidl nfsio 96964 471759 0 0 3 0x14280 nfsidl nfsio 20314 424376 0 0 3 0x14280 nfsidl nfsio 24038 379443 0 0 3 0x14280 nfsidl nfsio 56290 425871 0 0 3 0x14280 nfsidl nfsio 54211 328243 0 0 3 0x14280 nfsidl nfsio 10330 17337 0 0 3 0x14280 nfsidl nfsio 2971 288488 0 0 3 0x14280 nfsidl nfsio 57200 435372 0 0 3 0x14280 nfsidl nfsio 61103 471780 0 0 3 0x14280 nfsidl nfsio 93776 140955 0 0 3 0x14280 nfsidl nfsio 46950 34053 0 0 3 0x14280 nfsidl nfsio 13434 10826 0 0 3 0x14200 bored sosplice 25693 333731 5093 0 2 0x8000002 syz-executor 5093 257020 42389 0 3 0x810008a sigsusp ksh 42389 154739 56783 0 3 0x18000098 kqread sshd-session 56783 229945 87993 0 3 0x18000092 kqread sshd-session 87993 430808 1 0 3 0x18000088 kqread sshd 93756 366756 96154 74 3 0x19100092 bpf pflogd 96154 228605 1 0 3 0x18000080 sbwait pflogd 83297 127066 94468 73 3 0x19100010 ffs_fsync syslogd 94468 358779 1 0 3 0x18100082 sbwait syslogd 96949 453738 1 0 3 0x18100080 kqread resolvd 51226 348928 38447 77 3 0x18100092 kqread dhcpleased 11333 349551 38447 77 3 0x18100092 kqread dhcpleased 38447 290855 1 0 3 0x18000080 kqread dhcpleased 30213 119562 0 0 3 0x14200 bored smr 5811 360156 0 0 2 0x14200 zerothread 90366 11158 0 0 3 0x14200 aiodoned aiodoned 16760 382280 0 0 3 0x14200 syncer update 54946 216475 0 0 3 0x14200 cleaner cleaner 49515 67745 0 0 3 0x14200 reaper reaper 9051 199597 0 0 3 0x14200 pgdaemon pagedaemon 50654 292246 0 0 3 0x14200 bored viomb 8972 114524 0 0 3 0x40014200 acpi0 acpi0 68154 179643 0 0 3 0x40014200 idle1 39594 373753 0 0 3 0x14200 bored softnet3 39178 358937 0 0 3 0x14200 bored softnet2 4321 243479 0 0 3 0x14200 bored softnet1 78442 478874 0 0 3 0x14200 bored softnet0 6807 505189 0 0 3 0x14200 bored systqmp 23197 191380 0 0 3 0x14200 bored systq 25653 489570 0 0 3 0x14200 tmoslp softclockmp 13598 52505 0 0 7 0x40014200 softclock 23100 474823 0 0 3 0x40014200 idle0 1 287133 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &map->mtx r = 0 (0xffffffff8357f868) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x1ed sys/uvm/uvm_map.c:5261 #4 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #5 free+0x28b sys/kern/kern_malloc.c:428 #6 sys_writev+0x123 sys/kern/sys_generic.c:329 #7 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806d1884f0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:430 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2756 #4 uvm_fault_upper_lookup+0x389 #5 uvm_fault+0x169 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 37731 (syz-executor) thread 0xffff80002a3771f8 (47057) exclusive rwlock amaplk r = 0 (0xfffffd8072475b70) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvm_fault_check+0x521 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd805b4590f8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806d1884f0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:430 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2756 #4 uvm_fault_upper_lookup+0x389 #5 uvm_fault+0x169 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 83297 (syslogd) thread 0xffff8000ffffdbe8 (127066) exclusive rrwlock inode r = 0 (0xfffffd806e4762c0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2927 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10231 10239K 10768K 166960K 14190 0 pcb 19 16K 18K 166960K 485 0 rtable 200 15K 17K 166960K 3456 0 pf 41 18K 22K 166960K 332 0 ifaddr 40 8K 9K 166960K 456 0 ifgroup 64 2K 2K 166960K 513 0 sysctl 4 1K 1K 166960K 6 0 counters 68 36K 37K 166960K 304 0 ioctlops 0 0K 8K 166960K 1899 0 iov 0 0K 24K 166960K 109 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1438 90K 91K 166960K 4110 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 26 0 VM map 2 1K 1K 166960K 2 0 sem 19 16K 16K 166960K 145 0 dirhash 15 2K 3K 166960K 36 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 93K 166960K 2923 0 sigio 0 0K 0K 166960K 42 0 proc 71 91K 128K 166960K 3310 0 subproc 104 6K 7K 166960K 1326 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 377 0 in_multi 84 6K 7K 166960K 1153 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 1979 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 277 126K 137K 166960K 23719 0 UVM aobj 47 8K 8K 166960K 52 0 pinsyscall 43 86K 104K 166960K 6422 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 87 0 NDP 14 0K 2K 166960K 335 0 temp 77 6824K 6900K 166960K 84466 0 kqueue 13 20K 28K 166960K 230 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 406 0 402 3 2 1 3 0 8 0 rtentry 112 1175 0 1091 4 1 3 4 0 8 0 unpcb 144 1689 0 1661 17 15 2 6 0 8 0 syncache 336 7 0 7 3 3 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 808 751 0 743 30 29 1 8 0 8 0 arp 120 209 0 193 1 0 1 1 0 8 0 inpcb 336 2789 0 2774 58 56 2 15 0 8 0 nd6 136 321 0 299 1 0 1 1 0 8 0 pkpcb 40 8 0 8 6 6 0 1 0 8 0 kcovpl 48 102 0 94 1 0 1 1 0 8 0 ppxss 1168 15 0 15 9 8 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 16 0 12 2 1 1 1 0 482 0 pffrnode 88 14 0 11 2 1 1 1 0 8 0 pffrent 40 65 0 61 3 2 1 1 0 8 0 pfosfp 40 1463 0 1037 5 0 5 5 0 8 0 pfosfpen 112 1463 0 746 21 0 21 21 0 8 0 pfrktable 1344 10 0 8 4 3 1 1 0 8 0 pfanchor 1288 2 0 1 1 0 1 1 0 8 0 pftag 88 10 0 10 4 4 0 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstitem 24 231 0 184 1 0 1 1 0 8 0 pfstkey 128 236 0 189 2 0 2 2 0 8 0 pfstate 376 231 0 187 9 4 5 6 0 8 0 pfrule 1344 34 0 26 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4660 0 4287 40 13 27 29 0 8 0 art_table 32 4661 0 4287 4 0 4 4 0 8 0 art_node 16 1169 0 1094 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 16 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 141 0 124 1 0 1 1 0 8 0 shmpl 112 49 0 5 2 0 2 2 0 8 0 dirhash 1024 33 0 14 3 0 3 3 0 8 0 dino2pl 256 4376 0 2681 107 0 107 107 0 8 0 ffsino 272 4376 0 2681 114 0 114 114 0 8 0 nchpl 144 6903 0 6124 69 40 29 65 0 8 0 uvmvnodes 80 6731 0 0 138 0 138 138 0 8 0 vnodes 216 6731 0 0 374 0 374 374 0 8 0 namei 1024 34086 0 34086 5 4 1 1 0 8 1 percpumem 16 166 0 118 1 0 1 1 0 8 0 vcpupl 3904 58 0 1 8 0 8 8 0 8 0 vmpool 696 62 0 5 6 0 6 6 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 264 0 236 4 1 3 3 0 8 1 scsiplug 72 3 0 3 3 3 0 1 0 8 0 scxspl 216 62870 0 62869 12 11 1 8 1 8 0 plimitpl 152 393 0 376 1 0 1 1 0 8 0 sigapl 424 3078 0 3006 11 2 9 9 0 8 0 futexpl 64 27214 0 27207 7 6 1 1 0 8 0 knotepl 120 858 0 0 24 0 24 24 0 8 0 kqueuepl 216 507 0 498 6 5 1 4 0 8 0 pipepl 320 661 0 631 5 2 3 5 0 8 0 fdescpl 496 3018 0 2986 8 3 5 5 0 8 0 filepl 152 18075 0 17734 52 38 14 17 0 8 0 lockfpl 104 580 0 578 1 0 1 1 0 8 0 lockfspl 48 249 0 247 1 0 1 1 0 8 0 sessionpl 144 118 0 109 1 0 1 1 0 8 0 pgrppl 48 240 0 223 1 0 1 1 0 8 0 ucredpl 104 2510 0 2496 1 0 1 1 0 8 0 zombiepl 144 3006 0 3006 2 1 1 1 0 8 1 processpl 1160 3078 0 3006 7 1 6 6 0 8 0 procpl 648 5646 0 5560 10 2 8 8 0 8 0 srpgc 96 26 0 26 6 5 1 1 0 8 1 sosppl 168 5 0 5 3 3 0 1 0 8 0 sockpl 664 4914 0 4866 68 63 5 17 0 8 0 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 286 0 0 29 0 29 29 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 667 0 0 32 0 32 32 0 8 0 bufpl 280 13790 0 6081 551 0 551 551 0 8 0 anonpl 24 343583 0 339247 146 95 51 79 0 185 5 amapchunkpl 152 73772 0 73168 111 76 35 41 0 158 11 amappl16 200 3937 0 3907 75 61 14 14 0 8 10 amappl15 192 32 0 32 2 2 0 1 0 8 0 amappl14 184 316 0 304 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 1 0 1 0 8 0 amappl12 168 5170 0 5138 2 0 2 2 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 223 0 223 1 1 0 1 0 8 0 amappl8 136 16 0 13 1 0 1 1 0 8 0 amappl7 128 288 0 276 1 0 1 1 0 8 0 amappl6 120 1092 0 1090 1 0 1 1 0 8 0 amappl5 112 505 0 491 1 0 1 1 0 8 0 amappl4 104 593 0 573 1 0 1 1 0 8 0 amappl3 96 14331 0 14200 5 1 4 4 0 8 0 amappl2 88 1921 0 1855 2 0 2 2 0 8 0 amappl1 80 21812 0 21221 19 5 14 14 0 8 0 amappl 88 22571 0 22364 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 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 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 2 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 51 0 5 1 0 1 1 0 8 0 uaddrrnd 24 3080 0 2991 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3080 0 2991 1 0 1 1 0 8 0 vmmpekpl 168 26632 0 26565 4 0 4 4 0 8 0 vmmpepl 168 184227 0 182198 145 46 99 99 0 357 9 vmsppl 440 3079 0 2991 11 1 10 10 0 8 0 rwobjpl 56 56071 0 48294 116 4 112 112 0 8 1 pdppl 4096 6167 0 6039 272 143 129 129 0 8 1 pvpl 32 44784 0 0 363 1 362 362 0 265 0 pmappl 248 3079 0 2991 6 0 6 6 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 712 0 260 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8346bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8360ac08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800029f9af90,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff8360ac08,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x658 sys/kern/sched_bsd.c:460 sleep_finish(0,1) at sleep_finish+0x219 sys/kern/kern_synch.c:416 msleep(ffffffff835fdce0,ffffffff834a0c80,0,ffffffff830e3d39,0) at msleep+0x13b sys/kern/kern_synch.c:249 softclock_thread(ffff8000fffff440) at softclock_thread+0x11f sys/kern/kern_timeout.c:807 end trace frame: 0x0, count: 3 ddb{0}> trace x86_ipi_db(ffffffff8346bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8360ac08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800029f9af90,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff8360ac08,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x658 sys/kern/sched_bsd.c:460 sleep_finish(0,1) at sleep_finish+0x219 sys/kern/kern_synch.c:416 msleep(ffffffff835fdce0,ffffffff834a0c80,0,ffffffff830e3d39,0) at msleep+0x13b sys/kern/kern_synch.c:249 softclock_thread(ffff8000fffff440) at softclock_thread+0x11f sys/kern/kern_timeout.c:807 end trace frame: 0x0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e431b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309755d,ffffffff8303d971,90,ffffffff8309d659) at __assert+0x29 uvm_pagealloc_pg(fffffd8008506d00,fffffd806d188530,1e311000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806d188530,1e311000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806d1884e0,78c46dbce000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806d1884e0,78c46dbce000,5d11c000,1,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a146380,ffff80002a1463b8,ffff80002a146280,ffff80002a146300) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd805b459008,78c46dbcf000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a146500,78c46dbcfb80) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a146500) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x78c46dbcfba0, count: 3 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e431b) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309755d,ffffffff8303d971,90,ffffffff8309d659) at __assert+0x29 uvm_pagealloc_pg(fffffd8008506d00,fffffd806d188530,1e311000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806d188530,1e311000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806d1884e0,78c46dbce000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806d1884e0,78c46dbce000,5d11c000,1,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a146380,ffff80002a1463b8,ffff80002a146280,ffff80002a146300) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd805b459008,78c46dbcf000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a146500,78c46dbcfb80) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a146500) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x78c46dbcfba0, count: -12