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 *420352 70575 0 0 0x4000000 1K syz-executor 298011 22592 0 0 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833afd9e) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f3bab,ffffffff83351af6,6e4,ffffffff833d3546) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c7993f0,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003abfcd18,200000070140,10000,3,ffff80003c451918) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff83191d40,d02,8000,ffffffff83192590,ffff80003c451c70) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c451a50) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd800f8cf208,ffff80003c451c70,0,fffffd80097fd4e0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806c41a7d0,ffff80003c451c70,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003abfcd18,3,ffff80003c451c70,1,ffff80003c451d30) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003abfcd18,ffff80003c451de0,ffff80003c451d30) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c451de0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c451de0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x923245cfa50, 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(ffffffff833afd9e) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f3bab,ffffffff83351af6,6e4,ffffffff833d3546) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c7993f0,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003abfcd18,200000070140,10000,3,ffff80003c451918) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff83191d40,d02,8000,ffffffff83192590,ffff80003c451c70) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c451a50) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd800f8cf208,ffff80003c451c70,0,fffffd80097fd4e0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806c41a7d0,ffff80003c451c70,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003abfcd18,3,ffff80003c451c70,1,ffff80003c451d30) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003abfcd18,ffff80003c451de0,ffff80003c451d30) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c451de0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c451de0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x923245cfa50, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c451630 rbx 0xffff8000299dee07 rdx 0 rcx 0xffff80003abfcd18 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x40882b887fa2e2c1 r11 0x43368ebb9978ea42 r12 0xffff8000299dec08 r13 0 r14 0 r15 0x1 rip 0xffffffff82b13585 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c451620 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=420352 pid=70575 tcnt=4 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=0xffff80003abfc7e8,0xffff8000fffefcb0 process=0xffff80002a3c1828 user=0xffff80003c44c000, vmspace=0xfffffd806c7993f0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56628 400732 35549 0 2 0 syz-executor 70575 283040 4290 0 2 0 syz-executor 70575 426188 4290 0 3 0x4000080 fsleep syz-executor *70575 420352 4290 0 7 0x4000000 syz-executor 70575 51732 4290 0 3 0x4000080 fsleep syz-executor 22592 298011 38166 0 7 0 syz-executor 22592 76285 38166 0 2 0x4000000 syz-executor 2811 137927 639 0 2 0 syz-executor 2811 440802 639 0 3 0x4000080 fsleep syz-executor 2811 459336 639 0 2 0x4000000 syz-executor 44433 187589 93549 0 2 0 syz-executor 44433 83314 93549 0 3 0x4000080 fsleep syz-executor 47499 226561 1494 0 3 0x80 nanoslp syz-executor 47499 289849 1494 0 3 0x4000080 sbwait syz-executor 47499 29244 1494 0 3 0x4000080 fsleep syz-executor 47499 235111 1494 0 3 0x4000080 fsleep syz-executor 35549 520783 14082 0 3 0x82 nanoslp syz-executor 93549 258649 14082 0 3 0x82 nanoslp syz-executor 639 494737 14082 0 3 0x82 nanoslp syz-executor 4290 218703 14082 0 3 0x82 nanoslp syz-executor 1494 205095 14082 0 3 0x82 nanoslp syz-executor 45384 211292 14082 0 3 0x82 nanoslp syz-executor 38166 148256 14082 0 3 0x82 nanoslp syz-executor 64186 231347 14082 0 3 0x82 nanoslp syz-executor 14082 392136 70449 0 3 0x82 kqread syz-executor 70449 72117 28823 0 3 0x10008a sigsusp ksh 28823 146093 11913 0 3 0x98 kqread sshd-session 11913 442970 55387 0 3 0x92 kqread sshd-session 23697 205702 1 0 3 0x100083 ttyin getty 55387 421725 1 0 3 0x88 kqread sshd 21955 235203 94586 74 3 0x1100092 bpf pflogd 94586 452761 1 0 3 0x80 sbwait pflogd 95013 145072 8560 73 3 0x1100090 kqread syslogd 8560 254183 1 0 3 0x100082 sbwait syslogd 67391 80424 1 0 3 0x100080 kqread resolvd 76082 176531 93559 77 3 0x100092 kqread dhcpleased 9358 430197 93559 77 3 0x100092 kqread dhcpleased 93559 39782 1 0 3 0x80 kqread dhcpleased 7170 10562 0 0 3 0x14200 bored smr 87505 335172 0 0 2 0x14200 zerothread 86392 384426 0 0 3 0x14200 aiodoned aiodoned 76355 481884 0 0 3 0x14200 syncer update 11174 121119 0 0 3 0x14200 cleaner cleaner 77870 262857 0 0 3 0x14200 reaper reaper 62230 445119 0 0 3 0x14200 pgdaemon pagedaemon 4193 379807 0 0 3 0x14200 bored viomb 37970 489410 0 0 3 0x40014200 acpi0 acpi0 12721 170622 0 0 3 0x40014200 idle1 88197 350799 0 0 3 0x14200 bored softnet1 31837 75891 0 0 3 0x14200 bored softnet0 13992 376536 0 0 3 0x14200 bored systqmp 42338 41101 0 0 3 0x14200 bored systq 54482 326989 0 0 3 0x14200 tmoslp softclockmp 45705 447970 0 0 3 0x40014200 tmoslp softclock 24687 499238 0 0 3 0x40014200 idle0 1 162830 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 70575 (syz-executor) thread 0xffff80003abfcd18 (420352) exclusive rwlock amaplk r = 0 (0xfffffd806c55cee8) #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 (0xffffffff83912b80) #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 (0xfffffd806c7994f0) #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 11068 12180K 12477K 166960K 12311 0 pcb 18 14K 16K 166960K 108 0 rtable 243 8K 8K 166960K 363 0 pf 36 17K 19K 166960K 63 0 ifaddr 44 7K 8K 166960K 61 0 ifgroup 57 2K 3K 166960K 87 0 sysctl 3 1K 9K 166960K 7 0 counters 72 37K 39K 166960K 108 0 ioctlops 0 0K 4K 166960K 1486 0 iov 1 12K 12K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1344 85K 85K 166960K 1439 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 203 0 sigio 0 0K 0K 166960K 2 0 proc 72 115K 196K 166960K 538 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 8 0 in_multi 99 7K 7K 166960K 102 0 ether_multi 2 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 385 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 253 167K 184K 166960K 3704 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 43 86K 104K 166960K 1332 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 13 0K 2K 166960K 39 0 temp 35 8674K 8750K 166960K 4480 0 kqueue 14 22K 26K 166960K 42 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 34 0 31 1 0 1 1 0 8 0 rtentry 176 114 0 4 6 0 6 6 0 8 0 unpcb 144 74 0 55 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 26 0 18 2 0 2 2 0 8 1 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 179 0 167 7 0 7 7 0 8 5 nd6 152 24 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 15 0 14 1 0 1 1 0 8 0 pppxif 1504 3 0 3 1 0 1 1 0 8 1 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 1 0 0 1 0 1 1 0 8 0 art_heap4 256 459 0 6 29 0 29 29 0 8 0 art_table 40 460 0 6 5 0 5 5 0 8 0 art_node 32 114 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1725 0 214 95 0 95 95 0 8 0 ffsino 296 1725 0 214 117 0 117 117 0 8 0 nchpl 144 2003 0 298 64 0 64 64 0 8 0 rtmask 32 3 0 3 1 0 1 1 0 8 1 vnodes 216 1849 0 0 103 0 103 103 0 8 0 namei 1024 6011 0 6011 1 0 1 1 0 8 1 percpumem 16 69 0 18 1 0 1 1 0 8 0 kstatmem 264 48 0 20 3 0 3 3 0 8 0 scxspl 216 6713 0 6713 9 1 8 8 1 8 8 plimitpl 152 36 0 19 1 0 1 1 0 8 0 sigapl 424 512 0 464 7 0 7 7 0 8 1 knotepl 120 311 0 0 10 0 10 10 0 8 0 kqueuepl 224 77 0 67 3 0 3 3 0 8 2 pipepl 344 118 0 91 3 0 3 3 0 8 0 fdescpl 528 496 0 464 3 0 3 3 0 8 0 filepl 160 1975 0 1749 13 0 13 13 0 8 2 lockfpl 104 56 0 52 1 0 1 1 0 8 0 lockfspl 48 23 0 20 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 14 1 0 1 1 0 8 0 ucredpl 104 136 0 123 1 0 1 1 0 8 0 zombiepl 144 466 0 464 1 0 1 1 0 8 0 processpl 1232 512 0 464 5 0 5 5 0 8 1 procpl 664 642 0 584 6 0 6 6 0 8 0 sockpl 752 290 0 256 11 0 11 11 0 8 6 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 138 0 0 18 0 18 18 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 235 0 0 15 0 15 15 0 8 0 bufpl 280 2408 0 126 163 0 163 163 0 8 0 anonpl 32 3632 0 0 30 0 30 30 0 246 0 amapchunkpl 152 10334 0 9815 25 0 25 25 0 158 3 amappl16 200 1090 0 1058 4 1 3 4 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 6 0 5 1 0 1 1 0 8 0 amappl13 176 430 0 429 1 0 1 1 0 8 0 amappl12 168 854 0 811 3 0 3 3 0 8 0 amappl11 160 7 0 7 1 1 0 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 271 0 270 1 0 1 1 0 8 0 amappl8 136 39 0 37 1 0 1 1 0 8 0 amappl7 128 76 0 74 1 0 1 1 0 8 0 amappl6 120 278 0 265 1 0 1 1 0 8 0 amappl5 112 94 0 83 1 0 1 1 0 8 0 amappl4 104 435 0 405 1 0 1 1 0 8 0 amappl3 96 1685 0 1588 4 1 3 3 0 8 0 amappl2 88 607 0 531 2 0 2 2 0 8 0 amappl1 80 9563 0 8973 15 1 14 14 0 8 0 amappl 88 2963 0 2788 5 0 5 5 0 92 0 uvmvnodes 80 101 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 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 2 1 1 1 0 8 1 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 24 496 0 464 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 496 0 464 1 0 1 1 0 8 0 vmmpekpl 168 6009 0 5975 2 0 2 2 0 8 0 vmmpepl 168 39002 0 37039 91 0 91 91 0 357 4 vmsppl 488 495 0 464 5 0 5 5 0 8 1 rwobjpl 80 13450 0 12417 24 0 24 24 0 8 0 pdppl 4096 1000 0 928 98 22 76 86 0 8 4 pvpl 32 11386 0 0 93 1 92 92 0 265 0 pmappl 256 495 0 464 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 277 0 24 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837c9ff0) 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(ffffffff83912380) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83912380) at __mp_lock+0x192 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 __sanitizer_cov_trace_const_cmp4(ffff80003abfd4e0,ffff80003ac036e0) at __sanitizer_cov_trace_const_cmp4+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_const_cmp4(ffff80003abfd4e0,ffff80003ac036e0) at __sanitizer_cov_trace_const_cmp4+0xf sys/dev/kcov.c:230 syscall(ffff80003ac036e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac036e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x783950642690, count: 5 ddb{0}> trace x86_ipi_db(ffffffff837c9ff0) 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(ffffffff83912380) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83912380) at __mp_lock+0x192 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 __sanitizer_cov_trace_const_cmp4(ffff80003abfd4e0,ffff80003ac036e0) at __sanitizer_cov_trace_const_cmp4+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_const_cmp4(ffff80003abfd4e0,ffff80003ac036e0) at __sanitizer_cov_trace_const_cmp4+0xf sys/dev/kcov.c:230 syscall(ffff80003ac036e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac036e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x783950642690, 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:438 panic(ffffffff833afd9e) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f3bab,ffffffff83351af6,6e4,ffffffff833d3546) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c7993f0,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003abfcd18,200000070140,10000,3,ffff80003c451918) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff83191d40,d02,8000,ffffffff83192590,ffff80003c451c70) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c451a50) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd800f8cf208,ffff80003c451c70,0,fffffd80097fd4e0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806c41a7d0,ffff80003c451c70,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003abfcd18,3,ffff80003c451c70,1,ffff80003c451d30) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003abfcd18,ffff80003c451de0,ffff80003c451d30) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c451de0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c451de0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x923245cfa50, count: 1 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833afd9e) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f3bab,ffffffff83351af6,6e4,ffffffff833d3546) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_fault_unwire_locked(fffffd806c7993f0,200000070000,200000080000) at uvm_fault_unwire_locked+0x414 sys/uvm/uvm_fault.c:1761 uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806c7993f0,200000070000,200000081000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003abfcd18,200000070140,10000,3,ffff80003c451918) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff83191d40,d02,8000,ffffffff83192590,ffff80003c451c70) at physio+0x257 sys/kern/kern_physio.c:139 spec_read(ffff80003c451a50) at spec_read+0x14b sys/kern/spec_vnops.c:215 VOP_READ(fffffd800f8cf208,ffff80003c451c70,0,fffffd80097fd4e0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227 vn_read(fffffd806c41a7d0,ffff80003c451c70,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003abfcd18,3,ffff80003c451c70,1,ffff80003c451d30) at dofilereadv+0x25a sys/kern/sys_generic.c:252 sys_preadv(ffff80003abfcd18,ffff80003c451de0,ffff80003c451d30) at sys_preadv+0xe3 sys/kern/vfs_syscalls.c:3336 syscall(ffff80003c451de0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c451de0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x923245cfa50, count: -14