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 * 36837 80200 0 0 0x4000000 0 syz-executor 224745 82510 0 0 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a3608) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833de253,ffffffff833d13b3,90,ffffffff83378d36) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagealloc_pg(fffffd8008122988,fffffd806c979238,61897a000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707 uvm_pagealloc(fffffd806c979238,61897a000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913 pmap_get_ptp(fffffd806c979200,c312f555000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1 pmap_enter(fffffd806c979200,c312f555000,5d7fe000,3,20) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1 uvm_fault_upper_lookup(ffff80003c50ef90,ffff80003c50efc8,ffff80003c50ee90,ffff80003c50ef10) at uvm_fault_upper_lookup+0x337 sys/uvm/uvm_fault.c:-1 uvm_fault(fffffd806cb29d70,c312f551000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:638 upageflttrap(ffff80003c50f130,c312f551728) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c50f130) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:622 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc31bca79680, 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(ffffffff833a3608) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833de253,ffffffff833d13b3,90,ffffffff83378d36) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagealloc_pg(fffffd8008122988,fffffd806c979238,61897a000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707 uvm_pagealloc(fffffd806c979238,61897a000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913 pmap_get_ptp(fffffd806c979200,c312f555000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1 pmap_enter(fffffd806c979200,c312f555000,5d7fe000,3,20) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1 uvm_fault_upper_lookup(ffff80003c50ef90,ffff80003c50efc8,ffff80003c50ee90,ffff80003c50ef10) at uvm_fault_upper_lookup+0x337 sys/uvm/uvm_fault.c:-1 uvm_fault(fffffd806cb29d70,c312f551000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:638 upageflttrap(ffff80003c50f130,c312f551728) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c50f130) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:622 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc31bca79680, count: -12 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c50eab0 rbx 0xffffffff83870e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff80002a271240 rax 0xffffffff8386fff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd95ed54e6e581d8 r11 0x97e99298f7e637d r12 0xffffffff83870c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff81f52ef5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c50eaa0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=36837 pid=80200 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a270548,0xffff80002a271a18 process=0xffff80003c4f5370 user=0xffff80003c50a000, vmspace=0xfffffd806cb29d70 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97933 131579 24735 0 2 0 syz-executor 80200 263023 15681 0 3 0 vmmaplk syz-executor *80200 36837 15681 0 7 0x4000000 syz-executor 80200 376537 15681 0 3 0x4000080 fsleep syz-executor 88781 208441 12052 0 2 0 syz-executor 88781 210990 12052 0 3 0x4000080 fsleep syz-executor 33751 169780 68374 0 3 0x80 nanoslp syz-executor 33751 110376 68374 0 3 0x4000080 lockf syz-executor 33751 102834 68374 0 3 0x4000080 fsleep syz-executor 72806 370796 54344 -1 3 0x90 nanoslp syz-executor 72806 257291 54344 -1 3 0x4000090 sbwait syz-executor 72806 352452 54344 -1 3 0x4000090 fsleep syz-executor 6345 423311 64545 0 3 0x80 nanoslp syz-executor 6345 130897 64545 0 3 0x4000080 lockf syz-executor 6345 1029 64545 0 3 0x4000080 fsleep syz-executor 6345 395253 64545 0 3 0x4000080 fsleep syz-executor 82510 224745 96575 0 7 0 syz-executor 82510 287949 96575 0 3 0x4000080 fsleep syz-executor 82510 8563 96575 0 3 0x4000080 kqsel syz-executor 29385 209553 27306 0 3 0 vmmapbsy syz-executor 29385 463569 27306 0 3 0x4000000 vmmapbsy syz-executor 29385 119289 27306 0 3 0x4000000 fltagain2 syz-executor 29385 361394 27306 0 3 0x4000080 pipeiolk syz-executor 29385 477150 27306 0 3 0x4000000 fltagain2 syz-executor 79 91899 0 0 3 0x14280 nfsidl nfsio 42248 190802 0 0 3 0x14280 nfsidl nfsio 22600 202600 0 0 3 0x14280 nfsidl nfsio 13086 264466 0 0 3 0x14280 nfsidl nfsio 68552 489962 0 0 3 0x14280 nfsidl nfsio 56215 11544 0 0 3 0x14280 nfsidl nfsio 13841 313342 0 0 3 0x14280 nfsidl nfsio 80652 23897 0 0 3 0x14280 nfsidl nfsio 61514 186028 0 0 3 0x14280 nfsidl nfsio 17887 356079 0 0 3 0x14280 nfsidl nfsio 81281 355798 0 0 3 0x14280 nfsidl nfsio 26865 451232 0 0 3 0x14280 nfsidl nfsio 6061 284142 0 0 3 0x14280 nfsidl nfsio 27821 337945 0 0 3 0x14280 nfsidl nfsio 38863 490659 0 0 3 0x14280 nfsidl nfsio 76526 405672 0 0 3 0x14280 nfsidl nfsio 74272 177072 0 0 3 0x14280 nfsidl nfsio 18620 324693 0 0 3 0x14280 nfsidl nfsio 74396 222055 0 0 3 0x14280 nfsidl nfsio 44818 469901 0 0 3 0x14280 nfsidl nfsio 68374 329079 52068 0 3 0x82 nanoslp syz-executor 12052 199667 52068 0 3 0x82 nanoslp syz-executor 54344 379543 52068 0 3 0x82 nanoslp syz-executor 24735 434859 52068 0 3 0x82 nanoslp syz-executor 27306 161736 52068 0 3 0x82 wait syz-executor 64545 62169 52068 0 3 0x82 nanoslp syz-executor 96575 428982 52068 0 3 0x82 nanoslp syz-executor 15681 389643 52068 0 3 0x82 nanoslp syz-executor 52068 518249 37254 0 2 0x2 syz-executor 37254 241927 25421 0 3 0x10008a sigsusp ksh 25421 173856 94322 0 3 0x98 kqread sshd-session 94322 65113 85578 0 3 0x92 kqread sshd-session 18678 40310 1 0 3 0x100083 ttyin getty 85578 517022 1 0 3 0x88 kqread sshd 25123 490833 10054 74 3 0x1100092 bpf pflogd 10054 103342 1 0 3 0x80 sbwait pflogd 45766 259206 30830 73 3 0x1100090 kqread syslogd 30830 44457 1 0 3 0x100082 sbwait syslogd 28655 267233 1 0 3 0x100080 kqread resolvd 20775 396987 67017 77 3 0x100092 kqread dhcpleased 80364 164243 67017 77 3 0x100092 kqread dhcpleased 67017 150140 1 0 3 0x80 kqread dhcpleased 13445 313225 0 0 3 0x14200 bored smr 78966 482807 0 0 2 0x14200 zerothread 22351 267806 0 0 3 0x14200 aiodoned aiodoned 98114 446443 0 0 3 0x14200 syncer update 15449 284004 0 0 3 0x14200 cleaner cleaner 14906 522138 0 0 3 0x14200 reaper reaper 21529 269368 0 0 3 0x14200 pgdaemon pagedaemon 38074 402433 0 0 3 0x14200 bored viomb 53767 28136 0 0 3 0x40014200 acpi0 acpi0 70774 263552 0 0 3 0x40014200 idle1 33429 340405 0 0 3 0x14200 bored softnet1 38228 46981 0 0 3 0x14200 bored softnet0 40747 128921 0 0 3 0x14200 bored systqmp 38720 77327 0 0 3 0x14200 bored systq 89725 478341 0 0 3 0x14200 tmoslp softclockmp 63038 153225 0 0 3 0x40014200 tmoslp softclock 6375 266868 0 0 3 0x40014200 idle0 1 485653 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 (0xfffffd806c979210) #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+0x337 sys/uvm/uvm_fault.c:-1 #4 uvm_fault+0x159 sys/uvm/uvm_fault.c:638 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:622 #7 recall_trap+0x8 Process 80200 (syz-executor) thread 0xffff80002a271240 (36837) exclusive rwlock amaplk r = 0 (0xfffffd806db49cd0) #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_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvm_fault_check+0x8bb sys/uvm/uvm_fault.c:840 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x42f sys/arch/amd64/amd64/trap.c:622 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806cb29e70) #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:1902 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:699 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:633 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:622 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c979210) #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+0x337 sys/uvm/uvm_fault.c:-1 #4 uvm_fault+0x159 sys/uvm/uvm_fault.c:638 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:622 #7 recall_trap+0x8 Process 29385 (syz-executor) thread 0xffff80003c449a18 (463569) exclusive rrwlock inode r = 0 (0xfffffd806ebc50a0) #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_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10242 11041K 12425K 166960K 12818 0 pcb 18 15K 17K 166960K 460 0 rtable 236 12K 12K 166960K 699 0 pf 36 18K 67486K 166960K 300 0 ifaddr 38 7K 8K 166960K 144 0 ifgroup 55 2K 3K 166960K 260 0 sysctl 4 1K 9K 166960K 18 0 counters 68 36K 38K 166960K 340 0 ioctlops 0 0K 8K 166960K 2043 0 iov 0 0K 28K 166960K 105 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1512 95K 95K 166960K 2964 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 140 0 dirhash 12 2K 2K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 2173 0 sigio 0 0K 0K 166960K 111 0 proc 75 131K 180K 166960K 789 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 303 0 in_multi 77 5K 7K 166960K 197 0 ether_multi 1 0K 0K 166960K 22 0 mrt 0 0K 0K 166960K 21 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 585 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 262 161K 178K 166960K 21473 0 UVM aobj 41 10K 10K 166960K 46 0 pinsyscall 43 86K 109K 166960K 3371 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 223 0 NDP 12 0K 2K 166960K 97 0 temp 85 8672K 8800K 166960K 108431 0 kqueue 14 22K 30K 166960K 431 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 120 228 0 224 2 1 1 2 0 8 0 rtentry 176 190 0 101 6 0 6 6 0 8 0 unpcb 144 1326 0 1308 13 9 4 5 0 8 3 syncache 336 6 0 6 4 3 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 655 0 648 10 3 7 7 0 8 6 arp 136 28 0 11 1 0 1 1 0 8 0 inpcb 328 2289 0 2272 23 13 10 10 0 8 8 nd6 152 34 0 14 1 0 1 1 0 8 0 pkpcb 40 15 0 15 4 3 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 4 0 4 4 3 1 1 0 8 1 ppxss 1192 109 0 109 2 1 1 1 0 8 1 pppxif 1504 14 0 14 4 3 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 19 0 5 1 0 1 1 0 482 0 pffrnode 88 19 0 5 1 0 1 1 0 8 0 pffrent 40 30 0 16 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 4 0 4 2 2 0 1 0 8 0 pfstitem 24 115 0 37 1 0 1 1 0 8 0 pfstkey 128 117 0 39 3 0 3 3 0 8 0 pfstate 448 116 0 38 10 0 10 10 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 2 0 1 0 8 0 art_heap8 4096 8 0 4 6 2 4 6 0 8 0 art_heap4 256 889 0 570 32 8 24 31 0 8 0 art_table 40 897 0 574 5 0 5 5 0 8 0 art_node 32 188 0 110 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 14 2 1 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 136 0 126 1 0 1 1 0 8 0 shmpl 112 38 0 4 1 0 1 1 0 8 0 dirhash 1024 40 0 23 3 0 3 3 0 8 0 dino2pl 256 5537 0 4029 96 0 96 96 0 8 0 ffsino 296 5537 0 4029 118 1 117 118 0 8 0 nchpl 144 8506 0 6803 64 0 64 64 0 8 0 rtmask 32 12 0 12 2 1 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 30589 0 30589 4 2 2 2 0 8 2 percpumem 16 185 0 136 1 0 1 1 0 8 0 vcpupl 3968 5 0 1 1 0 1 1 0 8 0 vmpool 840 5 0 1 1 0 1 1 0 8 0 kstatmem 264 158 0 128 4 1 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 9 0 9 4 4 0 1 0 8 0 scxspl 216 51483 0 51483 13 12 1 8 1 8 1 plimitpl 152 570 0 551 1 0 1 1 0 8 0 sigapl 424 2501 0 2433 9 1 8 8 0 8 0 knotepl 120 568 0 0 16 0 16 16 0 8 0 kqueuepl 224 976 0 963 11 8 3 5 0 8 2 pipepl 344 461 0 432 9 6 3 6 0 8 0 fdescpl 528 2457 0 2425 3 0 3 3 0 8 0 filepl 160 17032 0 16799 34 18 16 21 0 8 5 lockfpl 104 1405 0 1398 6 4 2 3 0 8 1 lockfspl 48 416 0 411 2 1 1 2 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 65 0 48 1 0 1 1 0 8 0 ucredpl 104 2770 0 2755 1 0 1 1 0 8 0 zombiepl 144 2433 0 2433 1 0 1 1 0 8 1 processpl 1232 2501 0 2433 7 1 6 6 0 8 0 procpl 664 5931 0 5847 8 0 8 8 0 8 0 sosppl 176 11 0 11 3 3 0 1 0 8 0 sockpl 752 3904 0 3865 34 22 12 17 0 8 7 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 35 0 0 5 0 5 5 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 2762 0 0 173 0 173 173 0 8 0 bufpl 280 21064 0 14927 439 0 439 439 0 8 0 anonpl 32 13291 0 0 107 0 107 107 0 246 0 amapchunkpl 152 82897 0 82259 53 19 34 35 0 158 8 amappl16 200 8752 0 8682 58 42 16 28 0 8 7 amappl15 192 15 0 15 2 2 0 1 0 8 0 amappl14 184 5 0 5 2 2 0 1 0 8 0 amappl13 176 469 0 468 1 0 1 1 0 8 0 amappl12 168 2846 0 2804 3 0 3 3 0 8 0 amappl11 160 57 0 57 1 1 0 1 0 8 0 amappl10 152 55 0 40 1 0 1 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 30 0 27 1 0 1 1 0 8 0 amappl7 128 93 0 92 1 0 1 1 0 8 0 amappl6 120 341 0 327 1 0 1 1 0 8 0 amappl5 112 77 0 67 1 0 1 1 0 8 0 amappl4 104 452 0 420 1 0 1 1 0 8 0 amappl3 96 13068 0 12971 4 1 3 3 0 8 0 amappl2 88 2582 0 2505 2 0 2 2 0 8 0 amappl1 80 18357 0 17763 16 2 14 15 0 8 0 amappl 88 20381 0 20199 5 0 5 5 0 92 0 uvmvnodes 80 176 0 0 4 0 4 4 0 8 0 dma8192 8192 3 0 3 2 2 0 1 0 8 0 dma4096 4096 3 0 3 3 3 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 259 0 259 4 4 0 1 0 8 0 dma64 64 9 0 9 3 3 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 45 0 5 1 0 1 1 0 8 0 uaddrrnd 24 2457 0 2425 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2457 0 2425 1 0 1 1 0 8 0 vmmpekpl 168 20813 0 20762 3 0 3 3 0 8 0 vmmpepl 168 159078 0 157047 122 17 105 109 0 357 9 vmsppl 488 2456 0 2425 5 0 5 5 0 8 0 rwobjpl 80 42407 0 41203 40 9 31 34 0 8 0 pdppl 4096 4931 0 4856 123 46 77 87 0 8 2 pvpl 32 20311 0 0 164 0 164 164 0 265 0 pmappl 256 2461 0 2426 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 499 0 74 13 0 13 13 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(ffffffff833a3608) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833de253,ffffffff833d13b3,90,ffffffff83378d36) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagealloc_pg(fffffd8008122988,fffffd806c979238,61897a000,0) at uvm_pagealloc_pg+0x54b sys/uvm/uvm_page.c:707 uvm_pagealloc(fffffd806c979238,61897a000,0,3) at uvm_pagealloc+0x252 sys/uvm/uvm_page.c:913 pmap_get_ptp(fffffd806c979200,c312f555000) at pmap_get_ptp+0x1d0 sys/arch/amd64/amd64/pmap.c:-1 pmap_enter(fffffd806c979200,c312f555000,5d7fe000,3,20) at pmap_enter+0x386 sys/arch/amd64/amd64/pmap.c:-1 uvm_fault_upper_lookup(ffff80003c50ef90,ffff80003c50efc8,ffff80003c50ee90,ffff80003c50ef10) at uvm_fault_upper_lookup+0x337 sys/uvm/uvm_fault.c:-1 uvm_fault(fffffd806cb29d70,c312f551000,0,1) at uvm_fault+0x159 sys/uvm/uvm_fault.c:638 upageflttrap(ffff80003c50f130,c312f551728) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c50f130) at usertrap+0x42f sys/arch/amd64/amd64/trap.c:622 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc31bca79680, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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 __sanitizer_cov_trace_cmp8(6f840bf36418,b2623e98000) at __sanitizer_cov_trace_cmp8+0x35 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_cmp8(6f840bf36418,b2623e98000) at __sanitizer_cov_trace_cmp8+0x35 sys/dev/kcov.c:212 copyin(6f840bf36408,ffff80003c48b690,10) at copyin+0x145 check_copyin sys/kern/kern_subr.c:71 [inline] copyin(6f840bf36408,ffff80003c48b690,10) at copyin+0x145 sys/kern/kern_subr.c:101 sys_nanosleep(ffff80003c47fa20,ffff80003c48b7d0,ffff80003c48b720) at sys_nanosleep+0x4f sys/kern/kern_time.c:289 syscall(ffff80003c48b7d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c48b7d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f840bf363f0, count: 7 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 __sanitizer_cov_trace_cmp8(6f840bf36418,b2623e98000) at __sanitizer_cov_trace_cmp8+0x35 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_cmp8(6f840bf36418,b2623e98000) at __sanitizer_cov_trace_cmp8+0x35 sys/dev/kcov.c:212 copyin(6f840bf36408,ffff80003c48b690,10) at copyin+0x145 check_copyin sys/kern/kern_subr.c:71 [inline] copyin(6f840bf36408,ffff80003c48b690,10) at copyin+0x145 sys/kern/kern_subr.c:101 sys_nanosleep(ffff80003c47fa20,ffff80003c48b7d0,ffff80003c48b720) at sys_nanosleep+0x4f sys/kern/kern_time.c:289 syscall(ffff80003c48b7d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c48b7d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f840bf363f0, count: -8