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 *518460 77398 0 0x8000000 0 1 syz-executor 76319 53087 0 0x14000 0x40000200 0 softclock db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e3ad9) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309734d,ffffffff8303dfe2,90,ffffffff8309e0da) at __assert+0x29 uvm_pagealloc_pg(fffffd800826c740,fffffd806e0288f0,54de15000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806e0288f0,54de15000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806e0288c0,a9bc2b84000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806e0288c0,a9bc2b84000,72dae000,3,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a0fa470,ffff80002a0fa4a8,ffff80002a0fa370,ffff80002a0fa3f0) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd807c4c1538,a9bc2b85000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a0fa5f0,a9bc2b85048) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a0fa5f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x797885daced0, 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(ffffffff830e3ad9) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309734d,ffffffff8303dfe2,90,ffffffff8309e0da) at __assert+0x29 uvm_pagealloc_pg(fffffd800826c740,fffffd806e0288f0,54de15000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806e0288f0,54de15000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806e0288c0,a9bc2b84000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806e0288c0,a9bc2b84000,72dae000,3,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a0fa470,ffff80002a0fa4a8,ffff80002a0fa370,ffff80002a0fa3f0) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd807c4c1538,a9bc2b85000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a0fa5f0,a9bc2b85048) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a0fa5f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x797885daced0, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a0f9f90 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff8000ffff0a58 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf6a1f10faa21452c r11 0x4a5121dfd40fe5ee r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff81329505 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a0f9f80 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=518460 pid=77398 tcnt=2 stat=onproc flags process=8000000 proc=0 runpri=84, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff3970,0xffff8000ffff3c08 process=0xffff8000fffecdb8 user=0xffff80002a0f5000, vmspace=0xfffffd807c4c1538 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40674 109640 72814 0 2 0x8000000 syz-executor 40674 261008 72814 0 2 0xc000000 syz-executor 31411 364477 94744 0 2 0x8000000 syz-executor 31411 30991 94744 0 3 0xc000080 fsleep syz-executor 66981 148249 66955 0 2 0x8000000 syz-executor 66981 356285 66955 0 3 0xc000080 fsleep syz-executor 16828 488244 10853 0 2 0x8000000 syz-executor 16828 4318 10853 0 3 0xc000080 kqread syz-executor 16828 371228 10853 0 2 0xc000000 syz-executor 98342 133143 61793 0 2 0x8000000 syz-executor 98342 186484 61793 0 3 0xc000000 smrbar syz-executor 98342 292617 61793 0 3 0xc000080 fsleep syz-executor 15652 119353 3696 0 2 0x8000000 syz-executor 15652 330347 3696 0 3 0xc000080 fsleep syz-executor 12000 287730 42365 60929 2 0x8000490 syz-executor 12000 337166 42365 60929 3 0xc000090 msgwait syz-executor 12000 137473 42365 60929 3 0xc000090 fsleep syz-executor *77398 518460 68954 0 7 0x8000000 syz-executor 77398 45195 68954 0 3 0xc000080 fsleep syz-executor 3696 204976 93145 0 3 0x8000082 nanoslp syz-executor 61793 14067 93145 0 3 0x8000082 nanoslp syz-executor 42365 515043 93145 0 3 0x8000082 nanoslp syz-executor 10853 477216 93145 0 3 0x8000082 nanoslp syz-executor 66955 498597 93145 0 2 0x8000482 syz-executor 72814 211092 93145 0 2 0x8000482 syz-executor 94744 55482 93145 0 3 0x8000082 nanoslp syz-executor 68954 449995 93145 0 2 0x8000482 syz-executor 91033 112685 1 0 3 0x18100083 ttyin getty 20820 196182 0 0 3 0x14200 bored sosplice 93145 348373 97109 0 3 0x8000082 kqread syz-executor 97109 1635 6998 0 3 0x810008a sigsusp ksh 6998 509079 8297 0 3 0x18000098 kqread sshd-session 8297 8845 55 0 3 0x18000092 kqread sshd-session 55 281557 1 0 3 0x18000088 kqread sshd 7177 332664 28872 74 3 0x19100092 bpf pflogd 28872 20943 1 0 3 0x18000080 sbwait pflogd 98042 160134 79278 73 3 0x19100090 kqread syslogd 79278 41467 1 0 3 0x18100082 sbwait syslogd 70074 8878 1 0 3 0x18100080 kqread resolvd 18084 320575 11007 77 3 0x18100092 kqread dhcpleased 88182 418038 11007 77 3 0x18100092 kqread dhcpleased 11007 320261 1 0 3 0x18000080 kqread dhcpleased 14991 246166 0 0 3 0x14200 bored smr 30244 73218 0 0 2 0x14200 zerothread 37870 78455 0 0 3 0x14200 aiodoned aiodoned 16670 460137 0 0 3 0x14200 syncer update 87863 306004 0 0 3 0x14200 cleaner cleaner 84142 345684 0 0 3 0x14200 reaper reaper 85715 371669 0 0 3 0x14200 pgdaemon pagedaemon 89098 427540 0 0 3 0x14200 bored viomb 99897 115796 0 0 3 0x40014200 acpi0 acpi0 11450 348762 0 0 3 0x40014200 idle1 82401 62478 0 0 3 0x14200 bored softnet3 22115 256881 0 0 3 0x14200 bored softnet2 72669 223905 0 0 3 0x14200 bored softnet1 7052 439894 0 0 3 0x14200 bored softnet0 41738 342512 0 0 3 0x14200 bored systqmp 4000 133459 0 0 3 0x14200 bored systq 72170 351264 0 0 3 0x14200 tmoslp softclockmp 53087 76319 0 0 7 0x40014200 softclock 92925 380447 0 0 3 0x40014200 idle0 1 183794 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806e0288d0) #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 40674 (syz-executor) thread 0xffff8000ffff27b8 (261008) exclusive rrwlock inode r = 0 (0xfffffd80604753d8) #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 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 #10 domknodat+0x47e sys/kern/vfs_syscalls.c:1624 #11 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8060475c58) #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 98342 (syz-executor) thread 0xffff8000ffffccb8 (186484) exclusive rwlock clonelk r = 0 (0xffffffff834d8080) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 if_clone_destroy+0x67 #2 ifioctl+0x5c5 #3 sys_ioctl+0x67c #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 Process 77398 (syz-executor) thread 0xffff8000ffff0a58 (518460) exclusive rwlock amaplk r = 0 (0xfffffd806af69670) #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 (0xfffffd807c4c1628) #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 (0xfffffd806e0288d0) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10217 10372K 10610K 166960K 12794 0 pcb 19 12K 12K 166960K 210 0 rtable 217 7K 8K 166960K 2107 0 pf 37 18K 81K 166960K 217 0 ifaddr 42 8K 8K 166960K 292 0 ifgroup 59 2K 2K 166960K 335 0 sysctl 4 1K 2K 166960K 7 0 counters 66 36K 37K 166960K 214 0 ioctlops 0 0K 4K 166960K 1682 0 iov 0 0K 16K 166960K 68 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1364 86K 86K 166960K 2930 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 10K 14K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 18 10K 11K 166960K 23 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 93K 166960K 3180 0 sigio 0 0K 0K 166960K 27 0 proc 70 91K 140K 166960K 2148 0 subproc 104 6K 6K 166960K 806 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 171 0 in_multi 92 6K 7K 166960K 764 0 ether_multi 1 0K 0K 166960K 7 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 1176 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 247 77K 107K 166960K 25945 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 43 86K 104K 166960K 5665 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 76 0 NDP 13 0K 2K 166960K 212 0 temp 63 6820K 7451K 166960K 57970 0 kqueue 18 26K 31K 166960K 205 0 SYN cache 2 0K 16K 166960K 4 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 120 222 0 218 1 0 1 1 0 8 0 rtentry 112 739 0 643 4 1 3 4 0 8 0 unpcb 144 712 0 694 3 1 2 2 0 8 1 syncache 336 5 0 5 3 2 1 1 0 8 1 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 808 312 0 303 4 2 2 2 0 8 1 arp 120 133 0 116 1 0 1 1 0 8 0 inpcb 336 1330 0 1310 8 5 3 3 0 8 0 nd6 136 193 0 170 1 0 1 1 0 8 0 pkpcb 40 7 0 7 3 2 1 1 0 8 1 kcovpl 48 62 0 54 1 0 1 1 0 8 0 ppxss 1168 13 0 13 4 3 1 1 0 8 1 pffrag 232 20 0 14 1 0 1 1 0 482 0 pffrnode 88 19 0 13 1 0 1 1 0 8 0 pffrent 40 68 0 62 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 pfstitem 24 169 0 110 1 0 1 1 0 8 0 pfstkey 128 169 0 110 2 0 2 2 0 8 0 pfstate 376 169 0 110 7 1 6 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 2955 0 2540 30 1 29 29 0 8 1 art_table 32 2958 0 2540 4 0 4 4 0 8 0 art_node 16 736 0 650 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 17 0 1 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 4794 0 3184 103 1 102 102 0 8 0 ffsino 272 4794 0 3184 108 0 108 108 0 8 0 nchpl 144 7679 0 7058 65 40 25 65 0 8 0 uvmvnodes 80 6137 0 0 126 0 126 126 0 8 0 vnodes 216 6137 0 0 341 0 341 341 0 8 0 namei 1024 25757 0 25756 6 5 1 2 0 8 0 percpumem 16 121 0 74 1 0 1 1 0 8 0 vcpupl 3904 5 0 1 1 0 1 1 0 8 0 vmpool 696 8 0 4 1 0 1 1 0 8 0 kstatmem 264 174 0 148 3 0 3 3 0 8 1 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 49625 0 49625 13 11 2 8 1 8 2 plimitpl 152 249 0 232 1 0 1 1 0 8 0 sigapl 424 3375 0 3324 9 2 7 7 0 8 0 futexpl 64 15452 0 15446 8 7 1 1 0 8 0 knotepl 120 608 0 0 18 0 18 18 0 8 0 kqueuepl 216 267 0 253 1 0 1 1 0 8 0 pipepl 320 320 0 293 4 1 3 4 0 8 0 fdescpl 496 3355 0 3323 9 4 5 5 0 8 0 filepl 152 10555 0 10286 13 2 11 12 0 8 0 lockfpl 104 320 0 318 1 0 1 1 0 8 0 lockfspl 48 142 0 140 1 0 1 1 0 8 0 sessionpl 144 79 0 70 1 0 1 1 0 8 0 pgrppl 48 152 0 135 1 0 1 1 0 8 0 ucredpl 104 1506 0 1492 1 0 1 1 0 8 0 zombiepl 144 3324 0 3324 3 2 1 1 0 8 1 processpl 1160 3375 0 3324 5 1 4 5 0 8 0 procpl 648 5876 0 5814 8 2 6 6 0 8 0 srpgc 96 14 0 14 5 5 0 1 0 8 0 sosppl 168 25 0 25 4 4 0 1 0 8 0 sockpl 664 2276 0 2235 12 7 5 5 0 8 1 mcl64k 65536 33 0 0 3 0 3 3 0 8 0 mcl16k 16384 19 0 0 3 0 3 3 0 8 0 mcl12k 12288 13 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 19 0 0 3 0 3 3 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 238 0 0 29 0 29 29 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 538 0 0 29 0 29 29 0 8 0 bufpl 280 12822 0 5448 596 4 592 596 0 8 8 anonpl 24 408889 0 405419 80 49 31 50 0 185 0 amapchunkpl 152 83682 0 83179 54 32 22 33 0 158 1 amappl16 200 6464 0 6435 40 35 5 15 0 8 1 amappl15 192 16 0 14 1 0 1 1 0 8 0 amappl14 184 228 0 216 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 4866 0 4834 3 1 2 2 0 8 0 amappl11 160 69 0 55 1 0 1 1 0 8 0 amappl10 152 14 0 14 1 1 0 1 0 8 0 amappl9 144 110 0 110 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 214 0 202 1 0 1 1 0 8 0 amappl6 120 719 0 717 1 0 1 1 0 8 0 amappl5 112 354 0 343 1 0 1 1 0 8 0 amappl4 104 476 0 456 1 0 1 1 0 8 0 amappl3 96 17713 0 17593 8 4 4 4 0 8 0 amappl2 88 1381 0 1320 2 0 2 2 0 8 0 amappl1 80 20212 0 19617 17 3 14 15 0 8 0 amappl 88 25105 0 24927 7 2 5 5 0 92 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 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 8 0 8 2 2 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 3363 0 3327 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3363 0 3327 1 0 1 1 0 8 0 vmmpekpl 168 21188 0 21135 3 0 3 3 0 8 0 vmmpepl 168 196674 0 194717 122 35 87 96 0 357 0 vmsppl 440 3362 0 3327 7 2 5 5 0 8 0 rwobjpl 56 54604 0 47509 101 1 100 100 0 8 0 pdppl 4096 6733 0 6658 185 110 75 85 0 8 0 pvpl 32 29997 0 0 241 0 241 241 0 265 0 pmappl 248 3362 0 3327 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 535 0 137 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834a6ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x38 sys/dev/kcov.c:164 __mp_lock(ffffffff835b2288) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835b2288) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff835b2288,1) 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(ffffffff8361fd80,ffffffff834e4c80,0,ffffffff830e5a07,0) at msleep+0x13b sys/kern/kern_synch.c:249 softclock_thread(ffff8000ffffea20) at softclock_thread+0x11f sys/kern/kern_timeout.c:807 end trace frame: 0x0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff834a6ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x38 sys/dev/kcov.c:164 __mp_lock(ffffffff835b2288) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835b2288) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff835b2288,1) 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(ffffffff8361fd80,ffffffff834e4c80,0,ffffffff830e5a07,0) at msleep+0x13b sys/kern/kern_synch.c:249 softclock_thread(ffff8000ffffea20) at softclock_thread+0x11f sys/kern/kern_timeout.c:807 end trace frame: 0x0, count: -10 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(ffffffff830e3ad9) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309734d,ffffffff8303dfe2,90,ffffffff8309e0da) at __assert+0x29 uvm_pagealloc_pg(fffffd800826c740,fffffd806e0288f0,54de15000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806e0288f0,54de15000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806e0288c0,a9bc2b84000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806e0288c0,a9bc2b84000,72dae000,3,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a0fa470,ffff80002a0fa4a8,ffff80002a0fa370,ffff80002a0fa3f0) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd807c4c1538,a9bc2b85000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a0fa5f0,a9bc2b85048) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a0fa5f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x797885daced0, count: 3 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e3ad9) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309734d,ffffffff8303dfe2,90,ffffffff8309e0da) at __assert+0x29 uvm_pagealloc_pg(fffffd800826c740,fffffd806e0288f0,54de15000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd806e0288f0,54de15000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912 pmap_get_ptp(fffffd806e0288c0,a9bc2b84000) at pmap_get_ptp+0x1c6 pmap_enter(fffffd806e0288c0,a9bc2b84000,72dae000,3,20) at pmap_enter+0x389 uvm_fault_upper_lookup(ffff80002a0fa470,ffff80002a0fa4a8,ffff80002a0fa370,ffff80002a0fa3f0) at uvm_fault_upper_lookup+0x389 uvm_fault(fffffd807c4c1538,a9bc2b85000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a0fa5f0,a9bc2b85048) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a0fa5f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x797885daced0, count: -12