panic: kernel diagnostic assertion "pg->wire_count != 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1250 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 404476 2005 60929 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834545a0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8348ef27,ffffffff8347c4a1,4e2,ffffffff833ded2e) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pageunwire(fffffd8008d587e8) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249 uvm_fault_unwire_locked(fffffd806b9565d8,bc1e58ef000,bc1e58f0000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790 uvm_unmap_kill_entry_withlock(fffffd806b9565d8,fffffd806b823ee8,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1866 uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497 exit1(ffff80002a251770,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80002a251770,ffff80003c3f3d40,ffff80003c3f3c90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3f3d40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3f3d40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x747a83c85290, count: 4 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 "pg->wire_count != 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1250 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834545a0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8348ef27,ffffffff8347c4a1,4e2,ffffffff833ded2e) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pageunwire(fffffd8008d587e8) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249 uvm_fault_unwire_locked(fffffd806b9565d8,bc1e58ef000,bc1e58f0000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790 uvm_unmap_kill_entry_withlock(fffffd806b9565d8,fffffd806b823ee8,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1866 uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497 exit1(ffff80002a251770,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80002a251770,ffff80003c3f3d40,ffff80003c3f3c90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3f3d40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3f3d40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x747a83c85290, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c3f3960 rbx 0xffff8000299aee07 rdx 0 rcx 0xffff80002a251770 rax 0xffff8000299adff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x90c5d89d86bbcb48 r11 0x6c6b2b28ab497e05 r12 0xffff8000299aec08 r13 0 r14 0 r15 0x1 rip 0xffffffff81790ca5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c3f3950 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=432892 pid=42395 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=58, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a251770 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a251240,0xffff80002a251cb0 process=0xffff8000fffed358 user=0xffff80003c3ee000, vmspace=0xfffffd806b9565d8 estcpu=8, cpticks=58, pctcpu=0.54, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 19103 159885 24099 0 2 0 syz-executor 19103 180167 24099 0 3 0x4000080 fsleep syz-executor 2005 295618 40459 60929 2 0x10 syz-executor 2005 404476 40459 60929 7 0x4000010 syz-executor 15657 501297 22546 0 2 0 syz-executor 15657 439055 22546 0 3 0x4000080 fsleep syz-executor 62074 344830 63184 0 3 0x80 nanoslp syz-executor 62074 503674 63184 0 3 0x4000080 msgwait syz-executor 62074 474519 63184 0 3 0x4000080 fsleep syz-executor 74834 346474 48780 0 2 0x100002 ndp 81441 159642 60548 0 3 0x80 nanoslp syz-executor 81441 522616 60548 0 3 0x4000080 ttyin syz-executor 81441 192993 60548 0 3 0x4000080 ttyin syz-executor 81441 132917 60548 0 3 0x4000080 fsleep syz-executor 48780 454035 93408 0 3 0x10008a sigsusp sh 40459 164308 58503 0 3 0x82 nanoslp syz-executor 24099 406293 58503 0 3 0x82 nanoslp syz-executor 93408 172152 58503 0 3 0x82 wait syz-executor 51035 267247 58503 0 2 0xc82 syz-executor 60548 495117 58503 0 3 0x82 nanoslp syz-executor 22546 293098 58503 0 3 0x82 nanoslp syz-executor 63184 485622 58503 0 2 0xc82 syz-executor 51016 254101 58503 0 2 0x2 syz-executor 58503 97550 96952 0 3 0x82 kqread syz-executor 96952 405858 12654 0 3 0x10008a sigsusp ksh 12654 262876 16492 0 3 0x98 kqread sshd-session 16492 444883 25658 0 3 0x92 kqread sshd-session 74946 297054 1 0 3 0x100083 ttyin getty 25658 489873 1 0 3 0x88 kqread sshd 93880 11085 79327 74 3 0x1100092 bpf pflogd 79327 210972 1 0 3 0x80 sbwait pflogd 6399 2864 68477 73 3 0x1100090 kqread syslogd 68477 290768 1 0 3 0x100082 sbwait syslogd 68484 77597 1 0 3 0x100080 kqread resolvd 58021 14317 44505 77 3 0x100092 kqread dhcpleased 20939 398210 44505 77 3 0x100092 kqread dhcpleased 44505 190959 1 0 3 0x80 kqread dhcpleased 82281 207276 0 0 2 0x40014200 smr 70456 317784 0 0 2 0x14200 zerothread 77597 1419 0 0 3 0x14200 aiodoned aiodoned 4138 301602 0 0 3 0x14200 syncer update 34672 213116 0 0 3 0x14200 cleaner cleaner 81307 377199 0 0 3 0x14200 reaper reaper 58654 85101 0 0 3 0x14200 pgdaemon pagedaemon 54917 74538 0 0 3 0x14200 bored viomb 19992 282425 0 0 3 0x40014200 acpi0 acpi0 61844 203581 0 0 3 0x40014200 idle1 78830 404106 0 0 3 0x14200 bored softnet1 42223 406791 0 0 2 0x14200 softnet0 77570 461626 0 0 3 0x14200 smrbar systqmp 72312 100218 0 0 3 0x14200 bored systq 84314 272283 0 0 3 0x14200 tmoslp softclockmp 90527 51840 0 0 3 0x40014200 tmoslp softclock 58533 266382 0 0 3 0x40014200 idle0 1 435620 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 2005 (syz-executor) thread 0xffff800036bb47e8 (404476) exclusive rrwlock inode r = 0 (0xfffffd806b8738e0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732 #8 ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0xfe sys/kern/vfs_vops.c:103 #10 vn_open+0x50d sys/kern/vfs_vnops.c:118 #11 doopenat+0x35b sys/kern/vfs_syscalls.c:1155 #12 sys_openat+0x58 sys/kern/vfs_syscalls.c:1094 #13 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b873c58) #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:576 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 vn_open+0x22e sys/kern/vfs_vnops.c:109 #8 doopenat+0x35b sys/kern/vfs_syscalls.c:1155 #9 sys_openat+0x58 sys/kern/vfs_syscalls.c:1094 #10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 Process 51016 (syz-executor) thread 0xffff8000ffffd230 (254101) exclusive rrwlock inode r = 0 (0xfffffd806ba9d0c0) #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:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d4ec300) #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:576 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 77570 (systqmp) thread 0xffff8000ffffe000 (461626) shared rwlock systqmp r = 0 (0xffffffff83890ec8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11068 12278K 12278K 166960K 12162 0 pcb 20 12K 12K 166960K 27 0 rtable 223 6K 6K 166960K 361 0 pf 34 17K 24K 166960K 67 0 ifaddr 44 7K 7K 166960K 47 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 70 0 ioctlops 0 0K 4K 166960K 1491 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1294 81K 81K 166960K 1368 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 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 147 0 proc 70 115K 164K 166960K 552 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 2 0 in_multi 99 7K 7K 166960K 102 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 37 175K 175K 166960K 37 0 exec 0 0K 1K 166960K 379 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 238 179K 183K 166960K 3109 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 43 86K 105K 166960K 1287 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 26 1K 2K 166960K 28 0 temp 42 9071K 9135K 166960K 5924 0 kqueue 13 20K 22K 166960K 24 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 33 0 29 1 0 1 1 0 8 0 rtentry 176 114 0 12 5 0 5 5 0 8 0 unpcb 144 38 0 19 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 11 0 5 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 79 0 67 2 0 2 2 0 8 0 nd6 152 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 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 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 5 0 1 1 0 1 1 0 8 0 pfstitem 24 18 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 0 1 0 1 1 0 8 0 pfstate 448 18 0 0 2 0 2 2 0 8 0 pfrule 1360 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 490 0 0 31 0 31 31 0 8 0 art_table 40 491 0 0 5 0 5 5 0 8 0 art_node 32 114 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1580 0 108 92 0 92 92 0 8 0 ffsino 296 1580 0 108 114 0 114 114 0 8 0 nchpl 144 1791 0 81 64 0 64 64 0 8 0 vnodes 216 1675 0 0 94 0 94 94 0 8 0 namei 1024 5422 0 5421 1 0 1 1 0 8 0 percpumem 16 50 0 0 1 0 1 1 0 8 0 kstatmem 264 27 0 0 2 0 2 2 0 8 0 scxspl 216 6088 0 6088 4 1 3 3 1 8 3 plimitpl 152 31 0 13 1 0 1 1 0 8 0 sigapl 424 460 0 412 7 0 7 7 0 8 0 knotepl 120 51 0 0 2 0 2 2 0 8 0 kqueuepl 224 22 0 13 1 0 1 1 0 8 0 pipepl 344 122 0 95 3 0 3 3 0 8 0 fdescpl 528 444 0 413 3 0 3 3 0 8 0 filepl 160 1580 0 1354 10 0 10 10 0 8 0 lockfpl 104 11 0 8 1 0 1 1 0 8 0 lockfspl 48 7 0 4 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 13 1 0 1 1 0 8 0 ucredpl 104 84 0 70 1 0 1 1 0 8 0 zombiepl 144 413 0 412 1 0 1 1 0 8 0 processpl 1232 460 0 412 5 0 5 5 0 8 1 procpl 664 490 0 434 6 0 6 6 0 8 1 sockpl 752 150 0 115 5 0 5 5 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 124 0 0 16 0 16 16 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 126 0 0 8 0 8 8 0 8 0 bufpl 280 4831 0 105 338 0 338 338 0 8 0 anonpl 32 8129 0 0 66 0 66 66 0 246 0 amapchunkpl 152 8960 0 8226 30 0 30 30 0 158 0 amappl16 200 1808 0 1790 5 0 5 5 0 8 4 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 446 0 444 1 0 1 1 0 8 0 amappl13 176 117 0 104 1 0 1 1 0 8 0 amappl12 168 694 0 663 2 0 2 2 0 8 0 amappl11 160 33 0 33 1 0 1 1 0 8 1 amappl10 152 65 0 51 1 0 1 1 0 8 0 amappl9 144 268 0 268 1 0 1 1 0 8 1 amappl8 136 106 0 103 1 0 1 1 0 8 0 amappl7 128 144 0 130 1 0 1 1 0 8 0 amappl6 120 167 0 165 1 0 1 1 0 8 0 amappl5 112 107 0 97 1 0 1 1 0 8 0 amappl4 104 291 0 271 1 0 1 1 0 8 0 amappl3 96 1494 0 1379 3 0 3 3 0 8 0 amappl2 88 513 0 451 2 0 2 2 0 8 0 amappl1 80 9455 0 8818 15 0 15 15 0 8 1 amappl 88 2396 0 2237 4 0 4 4 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 7 0 7 2 1 1 1 0 8 1 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 24 444 0 412 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 444 0 412 1 0 1 1 0 8 0 vmmpekpl 168 5464 0 5432 2 0 2 2 0 8 0 vmmpepl 168 36657 0 34731 87 0 87 87 0 357 0 vmsppl 488 443 0 412 5 0 5 5 0 8 0 rwobjpl 80 13739 0 12673 24 0 24 24 0 8 0 pdppl 4096 895 0 824 97 12 85 85 0 8 14 pvpl 32 28977 0 0 234 0 234 234 0 265 0 pmappl 256 443 0 412 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 267 0 15 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838b7ff0) 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(ffffffff83a8bd00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a8bd00) 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 __mp_lock(ffffffff83a8bd00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a8bd00) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83a8bd00,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffffd806d540478) at biowait+0xc6 sys/kern/vfs_bio.c:1242 bwrite(fffffd806d540478) at bwrite+0x2e7 sys/kern/vfs_bio.c:754 ffs_update(fffffd806b873840,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ufs_makeinode(8000,fffffd806b838a28,ffff800036babd98,ffff800036babdc8) at ufs_makeinode+0x4b0 sys/ufs/ufs/ufs_vnops.c:1764 end trace frame: 0xffff800036babb00, count: 0 ddb{0}> trace x86_ipi_db(ffffffff838b7ff0) 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(ffffffff83a8bd00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a8bd00) 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 __mp_lock(ffffffff83a8bd00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a8bd00) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83a8bd00,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffffd806d540478) at biowait+0xc6 sys/kern/vfs_bio.c:1242 bwrite(fffffd806d540478) at bwrite+0x2e7 sys/kern/vfs_bio.c:754 ffs_update(fffffd806b873840,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ufs_makeinode(8000,fffffd806b838a28,ffff800036babd98,ffff800036babdc8) at ufs_makeinode+0x4b0 sys/ufs/ufs/ufs_vnops.c:1764 ufs_create(ffff800036babb10) at ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 VOP_CREATE(fffffd806b838a28,ffff800036babd98,ffff800036babdc8,ffff800036babb90) at VOP_CREATE+0xfe sys/kern/vfs_vops.c:103 vn_open(ffff800036babd68,201,0) at vn_open+0x50d sys/kern/vfs_vnops.c:118 doopenat(ffff800036bb47e8,ffffff9c,200000000040,200,0,0,9753098545654fa6) at doopenat+0x35b sys/kern/vfs_syscalls.c:1155 sys_openat(ffff800036bb47e8,ffff800036bac020,ffff800036babf70) at sys_openat+0x58 sys/kern/vfs_syscalls.c:1094 syscall(ffff800036bac020) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800036bac020) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4d4912989a0, count: -21 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(ffffffff834545a0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8348ef27,ffffffff8347c4a1,4e2,ffffffff833ded2e) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pageunwire(fffffd8008d587e8) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249 uvm_fault_unwire_locked(fffffd806b9565d8,bc1e58ef000,bc1e58f0000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790 uvm_unmap_kill_entry_withlock(fffffd806b9565d8,fffffd806b823ee8,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1866 uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497 exit1(ffff80002a251770,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80002a251770,ffff80003c3f3d40,ffff80003c3f3c90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3f3d40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3f3d40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x747a83c85290, count: 4 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834545a0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8348ef27,ffffffff8347c4a1,4e2,ffffffff833ded2e) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pageunwire(fffffd8008d587e8) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249 uvm_fault_unwire_locked(fffffd806b9565d8,bc1e58ef000,bc1e58f0000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790 uvm_unmap_kill_entry_withlock(fffffd806b9565d8,fffffd806b823ee8,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1866 uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] uvm_map_teardown(fffffd806b9565d8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497 exit1(ffff80002a251770,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80002a251770,ffff80003c3f3d40,ffff80003c3f3c90) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c3f3d40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3f3d40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x747a83c85290, count: -11