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 * 63984 56116 0 0x8000000 0 1 syz-executor.3 409421 30154 0 0x1a000002 0 0 syz-fuzzer db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8295b44d) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8290d634,ffffffff828b50d9,90,ffffffff82914988) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_pagealloc_pg(fffffd8007518720,fffffd807bde8818,1d138000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd807bde8818,1d138000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917 pmap_get_ptp(fffffd807bde87c8,744e32141000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 pmap_enter(fffffd807bde87c8,744e32141000,62e26000,1,20) at pmap_enter+0x2c6 sys/arch/amd64/amd64/pmap.c:2722 uvm_fault_upper_lookup(ffff80002a209fa0,ffff80002a209fd8,ffff80002a209ea0,ffff80002a209f20) at uvm_fault_upper_lookup+0x2b2 uvm_fault(fffffd806b565540,744e32142000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a20a120,744e321426a0) at upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a20a120) at usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x744e321426d0, 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8295b44d) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8290d634,ffffffff828b50d9,90,ffffffff82914988) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_pagealloc_pg(fffffd8007518720,fffffd807bde8818,1d138000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd807bde8818,1d138000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917 pmap_get_ptp(fffffd807bde87c8,744e32141000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 pmap_enter(fffffd807bde87c8,744e32141000,62e26000,1,20) at pmap_enter+0x2c6 sys/arch/amd64/amd64/pmap.c:2722 uvm_fault_upper_lookup(ffff80002a209fa0,ffff80002a209fd8,ffff80002a209ea0,ffff80002a209f20) at uvm_fault_upper_lookup+0x2b2 uvm_fault(fffffd806b565540,744e32142000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a20a120,744e321426a0) at upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a20a120) at usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x744e321426d0, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a209ac0 rbx 0xffff800029ceccdf rdx 0 rcx 0xffff80003738a7f8 rax 0xffff800029cebff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf7a6cdef1466df14 r11 0xce50167313ad8e5f r12 0xffff800029cecae0 r13 0 r14 0 r15 0x1 rip 0xffffffff8283b48c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a209ab0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.3) tid=63984 pid=56116 tcnt=2 stat=onproc flags process=8000000 proc=0 runpri=84, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000ffffd490,0xffff80003738bc88 process=0xffff80002a2739c8 user=0xffff80002a205000, vmspace=0xfffffd806b565540 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 38355 350940 25073 0 2 0x8000000 syz-executor.5 96591 405514 62477 0 2 0x8000000 syz-executor.2 85811 41455 12158 0 2 0x8000000 syz-executor.4 85811 177124 12158 0 2 0xc000000 syz-executor.4 85258 194569 5682 0 2 0x8000000 syz-executor.7 85258 334926 5682 0 3 0xc000080 lockf syz-executor.7 92220 148229 28566 60928 2 0x8000010 syz-executor.6 92220 91488 28566 60928 3 0xc000090 fsleep syz-executor.6 *56116 63984 27420 0 7 0x8000000 syz-executor.3 56116 400660 27420 0 3 0xc000080 fsleep syz-executor.3 79645 521230 10504 0 2 0x8000000 syz-executor.1 79645 324380 10504 0 3 0xc000080 fsleep syz-executor.1 79645 30637 10504 0 3 0xc000080 netio syz-executor.1 27420 173827 30154 0 3 0x8000082 nanoslp syz-executor.3 30728 150216 30154 0 2 0x8000002 syz-executor.0 62477 181016 30154 0 3 0x8000082 nanoslp syz-executor.2 19820 292482 0 0 3 0x14200 acct acct 12158 469203 30154 0 3 0x8000082 nanoslp syz-executor.4 25073 440766 30154 0 3 0x8000082 nanoslp syz-executor.5 5682 400085 30154 0 3 0x8000082 nanoslp syz-executor.7 10504 469862 30154 0 3 0x8000082 nanoslp syz-executor.1 69190 129927 0 0 3 0x14280 nfsidl nfsio 63438 151287 0 0 3 0x14280 nfsidl nfsio 2071 179995 0 0 3 0x14280 nfsidl nfsio 12944 172563 0 0 3 0x14280 nfsidl nfsio 85220 364849 0 0 3 0x14280 nfsidl nfsio 70637 130966 0 0 3 0x14280 nfsidl nfsio 14893 429577 0 0 3 0x14280 nfsidl nfsio 40643 481988 0 0 3 0x14280 nfsidl nfsio 95075 290537 0 0 3 0x14280 nfsidl nfsio 86725 248870 0 0 3 0x14280 nfsidl nfsio 49169 482213 0 0 3 0x14280 nfsidl nfsio 26833 506637 0 0 3 0x14280 nfsidl nfsio 58007 10673 0 0 3 0x14280 nfsidl nfsio 45471 148589 0 0 3 0x14280 nfsidl nfsio 49370 427479 0 0 3 0x14280 nfsidl nfsio 66481 179051 0 0 3 0x14280 nfsidl nfsio 54558 473672 0 0 3 0x14280 nfsidl nfsio 84050 467335 0 0 3 0x14280 nfsidl nfsio 51482 95062 0 0 3 0x14280 nfsidl nfsio 1299 129241 0 0 3 0x14280 nfsidl nfsio 19207 389033 0 0 3 0x14200 bored sosplice 28566 36074 30154 0 3 0x8000082 nanoslp syz-executor.6 26920 465941 57862 0 3 0x18100082 netio ndp 57862 472855 1 0 3 0x810008a sigsusp sh 30154 409421 87682 0 7 0x1a000002 syz-fuzzer 30154 348213 87682 0 3 0x1e000082 nanoslp syz-fuzzer 30154 86469 87682 0 3 0x1e000082 thrsleep syz-fuzzer 30154 153493 87682 0 3 0x1e000082 thrsleep syz-fuzzer 30154 48696 87682 0 3 0x1e000082 wait syz-fuzzer 30154 202917 87682 0 3 0x1e000082 thrsleep syz-fuzzer 30154 58979 87682 0 2 0x1e000002 syz-fuzzer 30154 424939 87682 0 3 0x1e000082 wait syz-fuzzer 30154 100897 87682 0 3 0x1e000082 wait syz-fuzzer 30154 255407 87682 0 3 0x1e000082 wait syz-fuzzer 30154 208018 87682 0 3 0x1e000082 thrsleep syz-fuzzer 30154 358507 87682 0 3 0x1e000082 wait syz-fuzzer 30154 243125 87682 0 3 0x1e000082 wait syz-fuzzer 30154 226305 87682 0 3 0x1e000082 thrsleep syz-fuzzer 30154 293154 87682 0 3 0x1e000082 wait syz-fuzzer 30154 397114 87682 0 3 0x1e000082 wait syz-fuzzer 87682 272252 14742 0 3 0x810008a sigsusp ksh 14742 255589 44887 0 3 0x1800009a kqread sshd 44887 91752 1 0 3 0x18000088 kqread sshd 10527 425616 69432 74 3 0x19100092 bpf pflogd 69432 212662 1 0 3 0x18000080 sbwait pflogd 832 319673 58965 73 3 0x19100010 biowait syslogd 58965 285381 1 0 3 0x18100082 sbwait syslogd 78771 440705 1 0 3 0x18100080 kqread resolvd 46662 4972 33824 77 3 0x18100092 kqread dhcpleased 56990 355516 33824 77 3 0x18100092 kqread dhcpleased 33824 255462 1 0 3 0x18000080 kqread dhcpleased 15512 430486 0 0 3 0x14200 bored smr 73424 118983 0 0 2 0x14200 zerothread 37910 232204 0 0 3 0x14200 aiodoned aiodoned 54089 99821 0 0 3 0x14200 syncer update 99369 83668 0 0 3 0x14200 cleaner cleaner 66536 394091 0 0 3 0x14200 reaper reaper 27223 204765 0 0 3 0x14200 pgdaemon pagedaemon 85862 285709 0 0 3 0x14200 bored viomb 93876 288699 0 0 3 0x40014200 acpi0 acpi0 23679 94657 0 0 3 0x40014200 idle1 55149 491385 0 0 3 0x14200 bored softnet3 14977 80869 0 0 3 0x14200 bored softnet2 7031 339226 0 0 3 0x14200 bored softnet1 72454 470726 0 0 3 0x14200 bored softnet0 47176 167968 0 0 3 0x14200 bored systqmp 61126 188805 0 0 3 0x14200 bored systq 19638 117571 0 0 3 0x14200 tmoslp softclockmp 14545 459847 0 0 3 0x40014200 tmoslp softclock 42462 69534 0 0 3 0x40014200 idle0 1 195592 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 (0xfffffd807bde87d8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c6 rcr3 machine/cpufunc.h:141 [inline] #3 pmap_enter+0x1c6 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:425 [inline] #3 pmap_enter+0x1c6 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper_lookup+0x2b2 #5 uvm_fault+0x129 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 56116 (syz-executor.3) thread 0xffff80003738a7f8 (63984) exclusive rwlock amaplk r = 0 (0xfffffd807a2032b0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 uvm_fault_check+0x401 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806b565630) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #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+0x8e sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807bde87d8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c6 rcr3 machine/cpufunc.h:141 [inline] #3 pmap_enter+0x1c6 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:425 [inline] #3 pmap_enter+0x1c6 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper_lookup+0x2b2 #5 uvm_fault+0x129 sys/uvm/uvm_fault.c:605 #6 upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 832 (syslogd) thread 0xffff8000ffffdc40 (319673) exclusive rrwlock inode r = 0 (0xfffffd806e7a70a0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf1 sys/kern/vfs_syscalls.c:2904 #6 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #6 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10195 6494K 6679K 166960K 12481 0 pcb 17 17K 19K 166960K 571 0 rtable 206 15K 17K 166960K 1369 0 pf 37 10K 11K 166960K 391 0 ifaddr 40 15K 18K 166960K 289 0 ifgroup 66 2K 3K 166960K 555 0 sysctl 4 1K 2K 166960K 15 0 counters 68 36K 37K 166960K 370 0 ioctlops 0 0K 4K 166960K 1898 0 iov 1 2K 32K 166960K 238 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1436 90K 91K 166960K 2819 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 66 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 337 0 dirhash 12 2K 2K 166960K 69 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 19 69K 81K 166960K 4037 0 sigio 0 0K 0K 166960K 167 0 proc 70 91K 127K 166960K 1489 0 subproc 117 7K 7K 166960K 391 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 662 0 in_multi 80 6K 7K 166960K 514 0 ether_multi 1 0K 0K 166960K 43 0 mrt 2 0K 0K 166960K 21 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 1156 0 pfkey data 0 0K 0K 166960K 10 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 390 118K 137K 166960K 37702 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 44 88K 108K 166960K 5851 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 291 0 NDP 14 0K 2K 166960K 227 0 temp 74 6816K 6944K 166960K 77766 0 kqueue 12 18K 29K 166960K 541 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 120 377 0 373 2 1 1 2 0 8 0 rtentry 112 458 0 372 4 0 4 4 0 8 0 unpcb 144 4021 0 4004 34 28 6 10 0 8 5 syncache 336 35 0 35 9 9 0 1 0 8 0 tcpqe 32 63 159 63 4 4 0 1 0 8 0 tcpcb 808 1483 0 1466 26 22 4 10 0 8 0 arp 120 102 0 88 1 0 1 1 0 8 0 inpcb 392 4816 0 4796 53 48 5 20 0 8 0 nd6 136 107 0 88 1 0 1 1 0 8 0 pkpcb 40 34 0 34 11 10 1 1 0 8 1 kcovpl 48 30 0 21 1 0 1 1 0 8 0 ppxss 1168 80 0 80 11 10 1 1 0 8 1 pffrag 232 54 0 48 1 0 1 1 0 482 0 pffrnode 88 47 0 41 1 0 1 1 0 8 0 pffrent 40 353 0 347 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 24 287 0 223 1 0 1 1 0 8 0 pfstkey 128 287 0 223 3 0 3 3 0 8 0 pfstate 376 287 0 223 7 0 7 7 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 1759 0 1339 43 12 31 32 0 8 0 art_table 32 1760 0 1339 5 0 5 5 0 8 0 art_node 16 454 0 375 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 10 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 333 0 323 1 0 1 1 0 8 0 dirhash 1024 55 0 38 3 0 3 3 0 8 0 dino2pl 256 8034 0 6474 99 0 99 99 0 8 0 ffsino 272 8034 0 6474 105 0 105 105 0 8 0 nchpl 144 14302 0 12556 67 0 67 67 0 8 0 uvmvnodes 80 6714 0 0 138 0 138 138 0 8 0 vnodes 216 6714 0 0 373 0 373 373 0 8 0 namei 1024 52439 0 52439 6 5 1 2 0 8 1 percpumem 16 199 0 151 1 0 1 1 0 8 0 vcpupl 3904 42 0 1 6 0 6 6 0 8 0 vmpool 696 54 0 13 6 2 4 4 0 8 0 kstatmem 264 330 0 302 6 3 3 3 0 8 0 scsiplug 72 9 0 9 7 7 0 1 0 8 0 scxspl 216 64097 0 64096 18 16 2 8 1 8 1 plimitpl 152 730 0 713 1 0 1 1 0 8 0 sigapl 424 4348 0 4276 10 1 9 9 0 8 0 futexpl 64 64100 0 64097 1 0 1 1 0 8 0 knotepl 120 565 0 0 11 0 11 11 0 8 0 kqueuepl 216 1092 0 1084 9 8 1 5 0 8 0 pipepl 320 604 0 573 4 1 3 4 0 8 0 fdescpl 496 4306 0 4275 5 0 5 5 0 8 0 filepl 152 30935 0 30668 60 41 19 20 0 8 7 lockfpl 104 1208 0 1203 1 0 1 1 0 8 0 lockfspl 48 429 0 425 1 0 1 1 0 8 0 sessionpl 144 48 0 30 1 0 1 1 0 8 0 pgrppl 48 99 0 81 1 0 1 1 0 8 0 ucredpl 104 6067 0 6054 1 0 1 1 0 8 0 zombiepl 144 4277 0 4276 1 0 1 1 0 8 0 processpl 1136 4348 0 4276 6 0 6 6 0 8 0 procpl 656 9153 0 9060 10 1 9 9 0 8 0 srpgc 96 22 0 22 9 9 0 1 0 8 0 sosppl 168 80 0 79 4 3 1 1 0 8 0 sockpl 664 9295 0 9254 88 72 16 25 0 8 10 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 13 0 0 2 0 2 2 0 8 0 mcl4k 4096 19 0 0 3 0 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 432 0 0 42 2 40 42 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 1061 0 0 61 0 61 61 0 8 0 bufpl 280 14108 0 7000 508 0 508 508 0 8 0 anonpl 24 563507 0 556765 189 102 87 87 0 186 22 amapchunkpl 152 121509 0 120834 99 57 42 44 0 158 12 amappl16 200 11481 0 11301 84 61 23 23 0 8 8 amappl15 192 21 0 21 3 3 0 1 0 8 0 amappl14 184 283 0 263 8 6 2 2 0 8 0 amappl13 176 9 0 8 1 0 1 1 0 8 0 amappl12 168 5347 0 5310 3 1 2 2 0 8 0 amappl11 160 70 0 55 1 0 1 1 0 8 0 amappl10 152 127 0 114 1 0 1 1 0 8 0 amappl9 144 194 0 194 10 9 1 1 0 8 1 amappl8 136 567 0 434 6 0 6 6 0 8 0 amappl7 128 95 0 80 1 0 1 1 0 8 0 amappl6 120 709 0 683 2 1 1 2 0 8 0 amappl5 112 341 0 325 1 0 1 1 0 8 0 amappl4 104 829 0 780 2 0 2 2 0 8 0 amappl3 96 23734 0 23646 3 0 3 3 0 8 0 amappl2 88 4943 0 4854 5 2 3 4 0 8 0 amappl1 80 25543 0 24971 23 10 13 23 0 8 0 amappl 88 36555 0 36353 6 0 6 6 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 4360 0 4287 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4360 0 4287 1 0 1 1 0 8 0 vmmpekpl 168 31373 0 31311 4 0 4 4 0 8 0 vmmpepl 168 277075 0 274797 196 82 114 119 0 357 2 vmsppl 440 4359 0 4287 11 2 9 9 0 8 0 rwobjpl 56 74878 0 66777 124 7 117 117 0 8 0 pdppl 4096 8727 0 8615 333 218 115 116 0 8 3 pvpl 32 46749 0 0 379 1 378 378 0 265 0 pmappl 248 4359 0 4287 5 0 5 5 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 749 0 280 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82d27ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff82db3828) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db3828) at __mp_lock+0x133 sys/kern/kern_lock.c:147 intr_handler(ffff80002a1b1cd0,ffff80000067b300) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __mp_lock(ffffffff82db3828) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db3828) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002a1b1e20,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f msleep(fffffd806efe81b0,fffffd806efe81b0,318,ffffffff82903f53,4b) at msleep+0x4b sys/kern/kern_synch.c:213 kqueue_sleep(fffffd806efe81b0,ffff80002a1b22d8) at kqueue_sleep+0xfa sys/kern/kern_event.c:1339 kqueue_scan(ffff80002a1b20d0,8,ffff80002a1b21d0,ffff80002a1b22d8,ffff80002a149c38,ffff80002a1b2318) at kqueue_scan+0x1bc sys/kern/kern_event.c:1394 sys_kevent(ffff80002a149c38,ffff80002a1b2460,ffff80002a1b23b0) at sys_kevent+0x567 sys/kern/kern_event.c:1062 end trace frame: 0xffff80002a1b2450, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82d27ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff82db3828) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db3828) at __mp_lock+0x133 sys/kern/kern_lock.c:147 intr_handler(ffff80002a1b1cd0,ffff80000067b300) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __mp_lock(ffffffff82db3828) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db3828) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002a1b1e20,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f msleep(fffffd806efe81b0,fffffd806efe81b0,318,ffffffff82903f53,4b) at msleep+0x4b sys/kern/kern_synch.c:213 kqueue_sleep(fffffd806efe81b0,ffff80002a1b22d8) at kqueue_sleep+0xfa sys/kern/kern_event.c:1339 kqueue_scan(ffff80002a1b20d0,8,ffff80002a1b21d0,ffff80002a1b22d8,ffff80002a149c38,ffff80002a1b2318) at kqueue_scan+0x1bc sys/kern/kern_event.c:1394 sys_kevent(ffff80002a149c38,ffff80002a1b2460,ffff80002a1b23b0) at sys_kevent+0x567 sys/kern/kern_event.c:1062 syscall(ffff80002a1b2460) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1b2460) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7936441361f0, count: -16 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8295b44d) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8290d634,ffffffff828b50d9,90,ffffffff82914988) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_pagealloc_pg(fffffd8007518720,fffffd807bde8818,1d138000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd807bde8818,1d138000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917 pmap_get_ptp(fffffd807bde87c8,744e32141000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 pmap_enter(fffffd807bde87c8,744e32141000,62e26000,1,20) at pmap_enter+0x2c6 sys/arch/amd64/amd64/pmap.c:2722 uvm_fault_upper_lookup(ffff80002a209fa0,ffff80002a209fd8,ffff80002a209ea0,ffff80002a209f20) at uvm_fault_upper_lookup+0x2b2 uvm_fault(fffffd806b565540,744e32142000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a20a120,744e321426a0) at upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a20a120) at usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x744e321426d0, count: 3 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8295b44d) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8290d634,ffffffff828b50d9,90,ffffffff82914988) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_pagealloc_pg(fffffd8007518720,fffffd807bde8818,1d138000,0) at uvm_pagealloc_pg+0x3e9 sys/uvm/uvm_page.c:695 uvm_pagealloc(fffffd807bde8818,1d138000,0,3) at uvm_pagealloc+0x1ed sys/uvm/uvm_page.c:917 pmap_get_ptp(fffffd807bde87c8,744e32141000) at pmap_get_ptp+0x18d sys/arch/amd64/amd64/pmap.c:1215 pmap_enter(fffffd807bde87c8,744e32141000,62e26000,1,20) at pmap_enter+0x2c6 sys/arch/amd64/amd64/pmap.c:2722 uvm_fault_upper_lookup(ffff80002a209fa0,ffff80002a209fd8,ffff80002a209ea0,ffff80002a209f20) at uvm_fault_upper_lookup+0x2b2 uvm_fault(fffffd806b565540,744e32142000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002a20a120,744e321426a0) at upageflttrap+0x8e sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a20a120) at usertrap+0x22a sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x744e321426d0, count: -12