panic: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_fault.c", line 1764 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 271394 37520 0 0 0 0 syz-executor *252588 37520 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833ae2be) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0989,ffffffff8334e921,6e4,ffffffff833d04f9) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c731b90,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003aff9ca8,200000070140,10000,3,ffff80003c45b278) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81aa8de0,d02,8000,ffffffff81aa9630,ffff80003c45b5d0) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c45b3b0) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd806c4bea68,ffff80003c45b5d0,0,fffffd80097fd1a0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806177a050,ffff80003c45b5d0,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003aff9ca8,3,ffff80003c45b5d0,1,ffff80003c45b690) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003aff9ca8,ffff80003c45b740,ffff80003c45b690) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c45b740) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b740) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcac66d4c230, 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 1764 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833ae2be) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0989,ffffffff8334e921,6e4,ffffffff833d04f9) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c731b90,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003aff9ca8,200000070140,10000,3,ffff80003c45b278) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81aa8de0,d02,8000,ffffffff81aa9630,ffff80003c45b5d0) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c45b3b0) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd806c4bea68,ffff80003c45b5d0,0,fffffd80097fd1a0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806177a050,ffff80003c45b5d0,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003aff9ca8,3,ffff80003c45b5d0,1,ffff80003c45b690) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003aff9ca8,ffff80003c45b740,ffff80003c45b690) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c45b740) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b740) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcac66d4c230, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c45af90 rbx 0xffff8000299dee07 rdx 0 rcx 0xffff80003aff9ca8 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x14cb650cd3aa5844 r11 0x7c4f371087f9a5ee r12 0xffff8000299dec08 r13 0 r14 0 r15 0x1 rip 0xffffffff81fbb4e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c45af80 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=252588 pid=37520 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003aff8a80,0xffff8000fffeea88 process=0xffff80003c415360 user=0xffff80003c456000, vmspace=0xfffffd806c731b90 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 28949 64388 83802 0 2 0 syz-executor 28949 15436 83802 0 3 0x4000080 fsleep syz-executor 37520 271394 81828 0 7 0 syz-executor *37520 252588 81828 0 7 0x4000000 syz-executor 37520 191775 81828 0 3 0x4000080 fsleep syz-executor 37520 230539 81828 0 3 0x4000080 fsleep syz-executor 7890 130697 41913 0 2 0 syz-executor 7890 443174 41913 0 2 0x4000000 syz-executor 6038 212282 10673 0 2 0 syz-executor 6038 494481 10673 0 3 0x4000080 fsleep syz-executor 6038 148662 10673 0 2 0x4000000 syz-executor 98543 286061 38781 0 2 0 syz-executor 98543 185241 38781 0 3 0x4000080 fsleep syz-executor 98543 85056 38781 0 3 0x4000080 fsleep syz-executor 73483 416284 12369 60928 2 0x10 syz-executor 73483 267712 12369 60928 3 0x4000090 fsleep syz-executor 83214 289857 8346 0 3 0x80 nanoslp syz-executor 83214 269675 8346 0 3 0x4000080 kqsel syz-executor 83214 252684 8346 0 3 0x4000080 fsleep syz-executor 83214 83594 8346 0 3 0x4000080 fsleep syz-executor 80277 271062 0 0 3 0x14200 acct acct 37166 191392 82480 0 3 0x82 nanoslp syz-executor 12369 489705 82480 0 3 0x82 nanoslp syz-executor 38781 434591 82480 0 3 0x82 nanoslp syz-executor 41913 481753 82480 0 3 0x82 nanoslp syz-executor 81828 330181 82480 0 3 0x82 nanoslp syz-executor 10673 137631 82480 0 3 0x82 nanoslp syz-executor 83802 82526 82480 0 3 0x82 nanoslp syz-executor 8346 157315 82480 0 3 0x82 nanoslp syz-executor 82480 383463 64849 0 3 0x82 kqread syz-executor 64849 463525 93106 0 3 0x10008a sigsusp ksh 93106 490145 14736 0 3 0x98 kqread sshd-session 14736 147646 31236 0 3 0x92 kqread sshd-session 82251 36897 1 0 3 0x100083 ttyopn getty 31236 307477 1 0 3 0x88 kqread sshd 21465 519744 65815 74 3 0x1100092 bpf pflogd 65815 265242 1 0 3 0x80 sbwait pflogd 85736 56894 76496 73 3 0x1100090 kqread syslogd 76496 398067 1 0 3 0x100082 sbwait syslogd 40020 453725 1 0 3 0x100080 kqread resolvd 74484 381939 45537 77 3 0x100092 kqread dhcpleased 97315 197781 45537 77 3 0x100092 kqread dhcpleased 45537 224329 1 0 3 0x80 kqread dhcpleased 1056 469288 0 0 3 0x14200 pause smr 70144 190101 0 0 2 0x14200 zerothread 32761 509570 0 0 3 0x14200 aiodoned aiodoned 29828 467166 0 0 3 0x14200 syncer update 12833 513449 0 0 3 0x14200 cleaner cleaner 9549 254776 0 0 3 0x14200 reaper reaper 47923 325318 0 0 3 0x14200 pgdaemon pagedaemon 63599 202028 0 0 3 0x14200 bored viomb 32201 88320 0 0 3 0x40014200 acpi0 acpi0 64862 179793 0 0 3 0x40014200 idle1 52642 468516 0 0 3 0x14200 bored softnet1 29858 467001 0 0 3 0x14200 bored softnet0 82010 496937 0 0 3 0x14200 bored systqmp 17377 429339 0 0 3 0x14200 bored systq 39629 507876 0 0 3 0x14200 tmoslp softclockmp 9060 296274 0 0 3 0x40014200 tmoslp softclock 13439 296890 0 0 3 0x40014200 idle0 1 289073 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 37520 (syz-executor) thread 0xffff80003aff9ca8 (252588) exclusive rwlock amaplk r = 0 (0xfffffd80798f52a8) #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_map_lock_entry+0x51 sys/uvm/uvm_map.c:464 #3 uvm_fault_unwire_locked+0x26d sys/uvm/uvm_fault.c:1776 #4 uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] #4 uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 #5 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #6 physio+0x257 sys/kern/kern_physio.c:139 #7 spec_read+0x14b sys/kern/spec_vnops.c:215 #8 VOP_READ+0x101 sys/kern/vfs_vops.c:227 #9 vn_read+0x17b sys/kern/vfs_vnops.c:369 #10 dofilereadv+0x25a sys/kern/sys_generic.c:252 #11 sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 #12 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #13 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838ec400) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #3 rw_do_enter_write+0x1dc sys/kern/kern_rwlock.c:298 #4 uvm_map_lock_entry+0x51 sys/uvm/uvm_map.c:464 #5 uvm_fault_unwire_locked+0x26d sys/uvm/uvm_fault.c:1776 #6 uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] #6 uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 #7 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #8 physio+0x257 sys/kern/kern_physio.c:139 #9 spec_read+0x14b sys/kern/spec_vnops.c:215 #10 VOP_READ+0x101 sys/kern/vfs_vops.c:227 #11 vn_read+0x17b sys/kern/vfs_vnops.c:369 #12 dofilereadv+0x25a sys/kern/sys_generic.c:252 #13 sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 #14 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #15 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd806c731c90) #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 uvm_fault_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1723 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1706 #3 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #4 physio+0x257 sys/kern/kern_physio.c:139 #5 spec_read+0x14b sys/kern/spec_vnops.c:215 #6 VOP_READ+0x101 sys/kern/vfs_vops.c:227 #7 vn_read+0x17b sys/kern/vfs_vnops.c:369 #8 dofilereadv+0x25a sys/kern/sys_generic.c:252 #9 sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 #10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11070 12098K 13034K 166960K 13307 0 pcb 17 14K 15K 166960K 156 0 rtable 229 11K 12K 166960K 519 0 pf 34 17K 82K 166960K 124 0 ifaddr 38 6K 8K 166960K 94 0 ifgroup 52 2K 2K 166960K 149 0 sysctl 3 1K 9K 166960K 7 0 counters 70 37K 38K 166960K 188 0 ioctlops 0 0K 8K 166960K 1629 0 iov 1 12K 20K 166960K 34 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1461 92K 93K 166960K 2133 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 29 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 232K 166960K 782 0 sigio 0 0K 0K 166960K 23 0 proc 73 115K 164K 166960K 601 0 subproc 72 4K 4K 166960K 82 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 74 0 in_multi 75 5K 7K 166960K 144 0 ether_multi 1 0K 0K 166960K 10 0 mrt 0 0K 0K 166960K 4 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 496 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 267 161K 175K 166960K 9057 0 UVM aobj 27 10K 10K 166960K 32 0 pinsyscall 43 86K 102K 166960K 1934 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 55 0 NDP 12 0K 2K 166960K 68 0 temp 55 8682K 8931K 166960K 36948 0 kqueue 14 22K 29K 166960K 195 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 83 1 0 1 1 0 8 0 rtentry 176 142 0 55 6 0 6 6 0 8 0 unpcb 144 642 0 623 7 1 6 6 0 8 5 syncache 336 7 0 7 1 1 0 1 0 8 0 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 736 237 0 230 7 0 7 7 0 8 6 arp 136 24 0 7 1 0 1 1 0 8 0 inpcb 328 801 0 783 8 1 7 7 0 8 5 nd6 152 30 0 9 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 50 0 50 1 0 1 1 0 8 1 pppxif 1504 3 0 3 1 1 0 1 0 8 0 pffrag 232 4 0 3 2 1 1 1 0 482 0 pffrnode 88 4 0 3 2 1 1 1 0 8 0 pffrent 40 9 0 8 2 1 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 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 600 0 230 29 1 28 29 0 8 4 art_table 40 605 0 230 5 0 5 5 0 8 0 art_node 32 141 0 64 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 2 1 1 1 0 8 1 semapl 112 26 0 16 1 0 1 1 0 8 0 shmpl 112 24 0 3 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2874 0 1362 97 1 96 96 0 8 0 ffsino 296 2874 0 1362 118 0 118 118 0 8 0 nchpl 144 3906 0 2202 64 0 64 64 0 8 0 rtmask 32 13 0 13 2 2 0 1 0 8 0 vnodes 216 3441 0 0 192 0 192 192 0 8 0 namei 1024 12852 0 12852 3 1 2 2 0 8 2 percpumem 16 109 0 59 1 0 1 1 0 8 0 vcpupl 3968 3 0 0 1 0 1 1 0 8 0 vmpool 848 4 0 1 1 0 1 1 0 8 0 kstatmem 264 98 0 70 3 0 3 3 0 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 25579 0 25579 16 8 8 8 1 8 8 plimitpl 152 154 0 137 1 0 1 1 0 8 0 sigapl 424 1087 0 1038 7 1 6 7 0 8 0 knotepl 120 752 0 0 23 0 23 23 0 8 0 kqueuepl 224 301 0 288 3 2 1 3 0 8 0 pipepl 344 175 0 148 3 0 3 3 0 8 0 fdescpl 528 1062 0 1030 3 0 3 3 0 8 0 filepl 160 6299 0 6071 19 1 18 18 0 8 8 lockfpl 104 215 0 212 1 0 1 1 0 8 0 lockfspl 48 91 0 88 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 41 0 24 1 0 1 1 0 8 0 ucredpl 104 831 0 816 1 0 1 1 0 8 0 zombiepl 144 1039 0 1038 1 0 1 1 0 8 0 processpl 1232 1087 0 1038 5 0 5 5 0 8 0 procpl 664 2238 0 2176 6 0 6 6 0 8 0 sosppl 176 12 0 11 1 0 1 1 0 8 0 sockpl 752 1546 0 1506 24 12 12 24 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 41 0 0 6 0 6 6 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1826 0 0 114 0 114 114 0 8 0 bufpl 280 10884 0 4747 439 0 439 439 0 8 0 anonpl 32 12295 0 0 100 0 100 100 0 246 0 amapchunkpl 152 29834 0 29149 39 12 27 36 0 158 0 amappl16 200 4365 0 4325 39 19 20 30 0 8 13 amappl15 192 17 0 17 1 1 0 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 448 0 447 1 0 1 1 0 8 0 amappl12 168 1434 0 1391 3 0 3 3 0 8 0 amappl11 160 10 0 9 1 0 1 1 0 8 0 amappl10 152 56 0 42 1 0 1 1 0 8 0 amappl9 144 248 0 247 1 0 1 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 84 0 83 1 0 1 1 0 8 0 amappl6 120 315 0 301 1 0 1 1 0 8 0 amappl5 112 77 0 67 1 0 1 1 0 8 0 amappl4 104 432 0 401 1 0 1 1 0 8 0 amappl3 96 5064 0 4956 4 1 3 3 0 8 0 amappl2 88 1217 0 1139 2 0 2 2 0 8 0 amappl1 80 12473 0 11878 14 0 14 14 0 8 0 amappl 88 8180 0 7991 5 0 5 5 0 92 0 uvmvnodes 80 120 0 0 3 0 3 3 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 31 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1063 0 1031 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1063 0 1031 1 0 1 1 0 8 0 vmmpekpl 168 10643 0 10606 3 0 3 3 0 8 0 vmmpepl 168 75693 0 73692 115 4 111 111 0 357 13 vmsppl 488 1062 0 1031 5 0 5 5 0 8 0 rwobjpl 80 23625 0 22512 37 3 34 34 0 8 7 pdppl 4096 2141 0 2067 100 26 74 83 0 8 0 pvpl 32 20745 0 0 167 0 167 167 0 265 0 pmappl 256 1066 0 1032 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 389 0 32 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83834ff0) 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 __mp_lock(ffffffff838ebc00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838ebc00) at __mp_lock+0x199 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7701ccd2d7e0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff83834ff0) 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 __mp_lock(ffffffff838ebc00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838ebc00) at __mp_lock+0x199 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7701ccd2d7e0, count: -7 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(ffffffff833ae2be) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0989,ffffffff8334e921,6e4,ffffffff833d04f9) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c731b90,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003aff9ca8,200000070140,10000,3,ffff80003c45b278) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81aa8de0,d02,8000,ffffffff81aa9630,ffff80003c45b5d0) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c45b3b0) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd806c4bea68,ffff80003c45b5d0,0,fffffd80097fd1a0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806177a050,ffff80003c45b5d0,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003aff9ca8,3,ffff80003c45b5d0,1,ffff80003c45b690) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003aff9ca8,ffff80003c45b740,ffff80003c45b690) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c45b740) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b740) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcac66d4c230, count: 1 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833ae2be) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0989,ffffffff8334e921,6e4,ffffffff833d04f9) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c731b90,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c731b90,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003aff9ca8,200000070140,10000,3,ffff80003c45b278) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81aa8de0,d02,8000,ffffffff81aa9630,ffff80003c45b5d0) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c45b3b0) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd806c4bea68,ffff80003c45b5d0,0,fffffd80097fd1a0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806177a050,ffff80003c45b5d0,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003aff9ca8,3,ffff80003c45b5d0,1,ffff80003c45b690) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003aff9ca8,ffff80003c45b740,ffff80003c45b690) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c45b740) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45b740) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcac66d4c230, count: -14