login: panic: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_fault.c", line 1806 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 520623 19733 0 0x2000 0x4080000 0 syz-executor *157694 2631 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8345e9c5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83409527,ffffffff833a2923,70e,ffffffff833a295c) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806d1023d0,200000000000,200000002000) at uvm_fault_unwire_locked+0x434 sys/uvm/uvm_fault.c:1803 uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff80003a07ad10,200000000040,10000,3,ffff80003a096ce0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:175 physio(ffffffff8170af10,d02,8000,ffffffff8170b770,ffff80003a096f98) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80003a096e00) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd807b680290,ffff80003a096f98,0,fffffd807f7d3410) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd8064706228,ffff80003a096f98,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003a07ad10,3,ffff80003a096f98,1,ffff80003a097050) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff80003a07ad10,ffff80003a097100,ffff80003a097050) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80003a097100) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a097100) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1844fce07a0, count: 1 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 "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_fault.c", line 1806 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8345e9c5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83409527,ffffffff833a2923,70e,ffffffff833a295c) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806d1023d0,200000000000,200000002000) at uvm_fault_unwire_locked+0x434 sys/uvm/uvm_fault.c:1803 uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff80003a07ad10,200000000040,10000,3,ffff80003a096ce0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:175 physio(ffffffff8170af10,d02,8000,ffffffff8170b770,ffff80003a096f98) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80003a096e00) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd807b680290,ffff80003a096f98,0,fffffd807f7d3410) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd8064706228,ffff80003a096f98,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003a07ad10,3,ffff80003a096f98,1,ffff80003a097050) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff80003a07ad10,ffff80003a097100,ffff80003a097050) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80003a097100) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a097100) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1844fce07a0, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003a0969f0 rbx 0xffff8000299dedd7 rdx 0 rcx 0xffff80003a07ad10 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb38496418c51a60d r11 0x512b4dbc3fc94dda r12 0xffff8000299debd8 r13 0 r14 0 r15 0x1 rip 0xffffffff83296a45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003a0969e0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=157694 pid=2631 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=80, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003a07b4c0,0xffff80003a07a570 process=0xffff8000fffe4020 user=0xffff80003a092000, vmspace=0xfffffd806d1023d0 estcpu=30, cpticks=7, pctcpu=0.1, user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 19733 19661 41987 0 4 0x82000 syz-executor 19733 100551 41987 0 4 0x4082000 syz-executor 19733 520623 41987 0 7 0x4082000 syz-executor 19733 428705 41987 0 3 0x4002000 suspend syz-executor 9631 106866 54633 0 2 0 syz-executor 9631 114205 54633 0 3 0x4000080 fsleep syz-executor 9631 388309 54633 0 3 0x4000080 fsleep syz-executor 9631 472396 54633 0 3 0x4000080 fsleep syz-executor 49953 417907 17818 0 2 0 syz-executor 49953 349905 17818 0 3 0x4000080 ttyin syz-executor 2631 98163 25598 0 3 0 vmmaplk syz-executor * 2631 157694 25598 0 7 0x4000000 syz-executor 2631 389230 25598 0 3 0x4000080 pipewr syz-executor 2631 66671 25598 0 3 0x4000080 fsleep syz-executor 81811 476889 1 0 3 0x100083 ttyin getty 60829 184850 42948 0 2 0x2 syz-executor 17818 197582 42948 0 3 0x82 nanoslp syz-executor 99780 247417 0 0 3 0x14280 nfsidl nfsio 11826 4921 0 0 3 0x14280 nfsidl nfsio 69241 8814 0 0 3 0x14280 nfsidl nfsio 36955 243357 0 0 3 0x14280 nfsidl nfsio 70437 34427 0 0 3 0x14280 nfsidl nfsio 80278 136489 0 0 3 0x14280 nfsidl nfsio 70755 185596 0 0 3 0x14280 nfsidl nfsio 11194 167640 0 0 3 0x14280 nfsidl nfsio 68024 47392 0 0 3 0x14280 nfsidl nfsio 27159 391120 0 0 3 0x14280 nfsidl nfsio 76541 214144 0 0 3 0x14280 nfsidl nfsio 22819 35065 0 0 3 0x14280 nfsidl nfsio 53488 519891 0 0 3 0x14280 nfsidl nfsio 83230 480046 0 0 3 0x14280 nfsidl nfsio 72641 129859 0 0 3 0x14280 nfsidl nfsio 75997 33530 0 0 3 0x14280 nfsidl nfsio 61686 216041 0 0 3 0x14280 nfsidl nfsio 66867 451686 0 0 3 0x14280 nfsidl nfsio 4660 159271 0 0 3 0x14280 nfsidl nfsio 82607 106089 0 0 3 0x14280 nfsidl nfsio 54633 196294 42948 0 3 0x82 nanoslp syz-executor 2965 201437 0 0 3 0x14200 acct acct 46565 145405 0 0 3 0x14200 bored sosplice 39279 1992 2135 0 3 0x100082 sbwait arp 2135 410449 79135 0 3 0x10008a sigsusp sh 25598 77428 42948 0 3 0x82 nanoslp syz-executor 79135 22229 42948 0 3 0x82 wait syz-executor 41987 165263 42948 0 3 0x82 nanoslp syz-executor 61180 275878 42948 0 3 0x82 nanoslp syz-executor 89285 228602 42948 0 3 0x2 biowait syz-executor 42948 77458 63416 0 3 0x82 kqread syz-executor 63416 477692 70932 0 3 0x10008a sigsusp ksh 70932 111340 55703 0 3 0x98 kqread sshd-session 55703 398756 1491 0 3 0x92 kqread sshd-session 1491 270698 1 0 3 0x88 kqread sshd 37502 500268 1692 74 3 0x1100092 bpf pflogd 1692 366909 1 0 3 0x80 sbwait pflogd 98620 337378 33578 73 3 0x1100090 kqread syslogd 33578 505239 1 0 3 0x100082 sbwait syslogd 47745 459289 1 0 3 0x100080 kqread resolvd 641 446987 87688 77 3 0x100092 kqread dhcpleased 99444 385662 87688 77 3 0x100092 kqread dhcpleased 87688 200108 1 0 3 0x80 kqread dhcpleased 18668 357842 0 0 3 0x14200 bored smr 67195 325284 0 0 2 0x14200 zerothread 80094 231843 0 0 3 0x14200 aiodoned aiodoned 42214 441297 0 0 3 0x14200 syncer update 10253 147306 0 0 3 0x14200 cleaner cleaner 89937 340510 0 0 3 0x14200 reaper reaper 19100 18645 0 0 3 0x14200 pgdaemon pagedaemon 42664 485824 0 0 3 0x14200 bored viomb 49191 301430 0 0 3 0x40014200 acpi0 acpi0 13229 302782 0 0 3 0x40014200 idle1 45666 222942 0 0 3 0x14200 bored softnet3 90922 265962 0 0 3 0x14200 bored softnet2 75511 366587 0 0 3 0x14200 bored softnet1 18817 382347 0 0 3 0x14200 bored softnet0 58523 401363 0 0 3 0x14200 bored systqmp 39373 511996 0 0 3 0x14200 bored systq 97894 392500 0 0 3 0x14200 tmoslp softclockmp 56508 44739 0 0 3 0x40014200 tmoslp softclock 92059 52396 0 0 3 0x40014200 idle0 1 162490 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 2631 (syz-executor) thread 0xffff80003a07ad10 (157694) Process 89285 (syz-executor) thread 0xffff8000ffff2010 (228602) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10231 11102K 11827K 166960K 13307 0 pcb 18 16K 21K 166960K 327 0 rtable 184 9K 10K 166960K 523 0 pf 30 16K 81K 166960K 123 0 ifaddr 34 6K 7K 166960K 99 0 ifgroup 47 2K 2K 166960K 155 0 sysctl 3 1K 9K 166960K 20 0 counters 64 36K 37K 166960K 182 0 ioctlops 0 0K 4K 166960K 1829 0 iov 0 0K 24K 166960K 58 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1459 92K 92K 166960K 2581 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 4 9K 9K 166960K 24 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 36 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1124 0 sigio 0 0K 0K 166960K 21 0 proc 72 91K 152K 166960K 730 0 subproc 72 4K 4K 166960K 100 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 196 0 in_multi 67 5K 6K 166960K 147 0 ether_multi 1 0K 0K 166960K 4 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 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 721 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 244 162K 176K 166960K 11859 0 UVM aobj 31 2K 2K 166960K 36 0 pinsyscall 43 86K 108K 166960K 2308 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 37 0 NDP 10 0K 1K 166960K 65 0 temp 72 8686K 8751K 166960K 40105 0 kqueue 13 20K 28K 166960K 223 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 86 0 80 1 0 1 1 0 8 0 rtentry 176 160 0 84 5 0 5 5 0 8 0 unpcb 144 714 0 695 4 2 2 2 0 8 1 syncache 336 12 0 12 5 4 1 1 0 8 1 tcpqe 32 5 0 5 3 2 1 1 0 8 1 tcpcb 808 228 0 218 4 2 2 2 0 8 0 arp 128 26 0 11 1 0 1 1 0 8 0 inpcb 384 1180 0 1166 25 21 4 12 0 8 2 nd6 144 35 0 17 1 0 1 1 0 8 0 pkpcb 40 13 0 13 4 3 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 44 0 44 3 3 0 1 0 8 0 pppxif 1504 5 0 5 2 2 0 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 9 0 6 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 24 101 0 23 1 0 1 1 0 8 0 pfstkey 128 101 0 23 3 0 3 3 0 8 0 pfstate 384 101 0 23 9 0 9 9 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 256 720 0 388 31 4 27 27 0 8 3 art_table 32 723 0 388 4 0 4 4 0 8 0 art_node 16 157 0 91 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 11 1 0 1 1 0 8 0 semapl 112 31 0 21 1 0 1 1 0 8 0 shmpl 112 33 0 5 1 0 1 1 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 3351 0 1840 96 0 96 96 0 8 0 ffsino 288 3351 0 1840 109 0 109 109 0 8 0 nchpl 144 4839 0 3144 64 0 64 64 0 8 0 rtmask 32 10 0 10 2 2 0 1 0 8 0 uvmvnodes 80 4273 0 0 88 0 88 88 0 8 0 vnodes 216 4273 0 0 238 0 238 238 0 8 0 namei 1024 17185 0 17185 2 1 1 1 0 8 1 percpumem 16 106 0 59 1 0 1 1 0 8 0 kstatmem 264 92 0 70 3 1 2 3 0 8 0 scsiplug 72 5 0 5 4 4 0 1 0 8 0 scxspl 216 15561 0 15560 10 9 1 8 1 8 0 plimitpl 152 204 0 187 1 0 1 1 0 8 0 sigapl 424 1431 0 1360 10 1 9 9 0 8 0 knotepl 120 575 0 0 17 0 17 17 0 8 0 kqueuepl 224 687 0 678 9 8 1 5 0 8 0 pipepl 336 178 0 150 3 0 3 3 0 8 0 fdescpl 520 1390 0 1359 3 0 3 3 0 8 0 filepl 160 8736 0 8508 26 14 12 17 0 8 1 lockfpl 104 362 0 360 1 0 1 1 0 8 0 lockfspl 48 115 0 113 1 0 1 1 0 8 0 sessionpl 144 37 0 28 1 0 1 1 0 8 0 pgrppl 48 60 0 43 1 0 1 1 0 8 0 ucredpl 104 1236 0 1223 1 0 1 1 0 8 0 zombiepl 144 1497 0 1495 1 0 1 1 0 8 0 processpl 1208 1431 0 1360 6 0 6 6 0 8 0 procpl 656 3061 0 2979 9 1 8 8 0 8 0 srpgc 96 8 0 8 3 2 1 1 0 8 1 sosppl 168 9 0 9 3 2 1 1 0 8 1 sockpl 728 2020 0 1981 27 22 5 16 0 8 1 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 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 106 0 0 14 0 14 14 0 8 0 mcl2k 2048 40 0 0 4 0 4 4 0 8 0 mtagpl 96 65 0 0 2 0 2 2 0 8 0 mbufpl 256 1161 0 0 73 0 73 73 0 8 0 bufpl 280 6084 0 129 426 0 426 426 0 8 0 anonpl 32 7854 0 0 64 0 64 64 0 246 0 amapchunkpl 152 37244 0 36755 31 8 23 25 0 158 2 amappl16 200 4409 0 4302 34 28 6 15 0 8 0 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 137 0 124 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 2086 0 2054 4 2 2 3 0 8 0 amappl11 160 60 0 46 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 65 0 63 1 0 1 1 0 8 0 amappl7 128 142 0 128 1 0 1 1 0 8 0 amappl6 120 220 0 214 1 0 1 1 0 8 0 amappl5 112 139 0 129 1 0 1 1 0 8 0 amappl4 104 359 0 339 1 0 1 1 0 8 0 amappl3 96 7772 0 7656 5 1 4 4 0 8 0 amappl2 88 749 0 681 2 0 2 2 0 8 0 amappl1 80 14427 0 13803 15 0 15 15 0 8 0 amappl 88 10896 0 10731 5 0 5 5 0 92 0 dma65536 65536 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 7 0 7 2 2 0 1 0 8 0 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 35 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1390 0 1359 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1390 0 1359 1 0 1 1 0 8 0 vmmpekpl 168 13317 0 13264 3 0 3 3 0 8 0 vmmpepl 168 94996 0 92933 122 27 95 107 0 357 0 vmsppl 480 1389 0 1359 5 0 5 5 0 8 0 rwobjpl 72 31479 0 26112 99 1 98 98 0 8 0 pdppl 4096 2787 0 2718 109 36 73 87 0 8 4 pvpl 32 15634 0 0 127 1 126 126 0 265 0 pmappl 256 1389 0 1359 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 467 0 51 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83851ff0) 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_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff838f45a8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838f45a8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a33c240,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838f45a8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838f45a8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff83851ff0) 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_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff838f45a8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838f45a8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a33c240,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838f45a8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838f45a8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 end trace frame: 0x0, count: -8 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:438 panic(ffffffff8345e9c5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83409527,ffffffff833a2923,70e,ffffffff833a295c) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806d1023d0,200000000000,200000002000) at uvm_fault_unwire_locked+0x434 sys/uvm/uvm_fault.c:1803 uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff80003a07ad10,200000000040,10000,3,ffff80003a096ce0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:175 physio(ffffffff8170af10,d02,8000,ffffffff8170b770,ffff80003a096f98) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80003a096e00) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd807b680290,ffff80003a096f98,0,fffffd807f7d3410) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd8064706228,ffff80003a096f98,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003a07ad10,3,ffff80003a096f98,1,ffff80003a097050) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff80003a07ad10,ffff80003a097100,ffff80003a097050) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80003a097100) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a097100) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1844fce07a0, count: 1 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8345e9c5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83409527,ffffffff833a2923,70e,ffffffff833a295c) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806d1023d0,200000000000,200000002000) at uvm_fault_unwire_locked+0x434 sys/uvm/uvm_fault.c:1803 uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806d1023d0,200000000000,200000011000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff80003a07ad10,200000000040,10000,3,ffff80003a096ce0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:175 physio(ffffffff8170af10,d02,8000,ffffffff8170b770,ffff80003a096f98) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80003a096e00) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd807b680290,ffff80003a096f98,0,fffffd807f7d3410) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd8064706228,ffff80003a096f98,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003a07ad10,3,ffff80003a096f98,1,ffff80003a097050) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff80003a07ad10,ffff80003a097100,ffff80003a097050) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80003a097100) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a097100) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1844fce07a0, count: -14