panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1275 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 301141 53333 0 0x2 0 1 syz-fuzzer *519504 37923 0 0x14000 0x200 0K reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82579e30) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ec956,ffffffff82568aa4,4fb,ffffffff8259eda1) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_pageunwire(fffffd8006a64960) at uvm_pageunwire+0x19b sys/uvm/uvm_page.c:1275 uvm_fault_unwire_locked(fffffd8068b2ae90,9a4edc5b000,9a4ede5a000) at uvm_fault_unwire_locked+0x24b sys/uvm/uvm_fault.c:1668 uvm_unmap_kill_entry_withlock(fffffd8068b2ae90,fffffd80756bfb28,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:2136 uvm_map_teardown(fffffd8068b2ae90) at uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd8068b2ae90) at uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 uvmspace_free(fffffd8068b2ae90) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f97a0) at reaper+0x18b sys/kern/kern_exit.c:457 end trace frame: 0x0, count: 6 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 "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1275 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82579e30) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ec956,ffffffff82568aa4,4fb,ffffffff8259eda1) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_pageunwire(fffffd8006a64960) at uvm_pageunwire+0x19b sys/uvm/uvm_page.c:1275 uvm_fault_unwire_locked(fffffd8068b2ae90,9a4edc5b000,9a4ede5a000) at uvm_fault_unwire_locked+0x24b sys/uvm/uvm_fault.c:1668 uvm_unmap_kill_entry_withlock(fffffd8068b2ae90,fffffd80756bfb28,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:2136 uvm_map_teardown(fffffd8068b2ae90) at uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd8068b2ae90) at uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 uvmspace_free(fffffd8068b2ae90) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f97a0) at reaper+0x18b sys/kern/kern_exit.c:457 end trace frame: 0x0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800021135570 rbx 0xffffffff82977bff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff8000210f97a0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x21a65bc836d3a848 r11 0x9711628d73b53a2e r12 0xffffffff82977a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8118e7f8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021135560 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (reaper) pid=519504 stat=onproc flags process=14000 proc=200 pri=86, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff8000210f9500,0xffff8000210f9cf0 process=0xffff8000ffffd8f0 user=0xffff800021130000, vmspace=0xffffffff82b43cb0 estcpu=34, cpticks=5, pctcpu=5.35 user=0, sys=160, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 13888 375219 53333 0 2 0 syz-fuzzer 51517 75810 1 0 3 0x80 fsleep syz-executor.0 51517 90767 1 0 3 0x4000080 kqsel syz-executor.0 918 388110 53333 0 3 0x82 piperd syz-executor.3 16257 366625 53333 0 3 0x82 piperd syz-executor.2 77446 291969 0 0 3 0x14200 bored sosplice 26027 184958 1 0 3 0x100083 ttyin getty 82636 469360 0 0 3 0x14280 nfsidl nfsio 48531 323120 0 0 3 0x14280 nfsidl nfsio 78502 198140 0 0 3 0x14280 nfsidl nfsio 95346 106826 0 0 3 0x14280 nfsidl nfsio 4771 166678 0 0 3 0x14280 nfsidl nfsio 63498 335705 0 0 3 0x14280 nfsidl nfsio 26332 296834 0 0 3 0x14280 nfsidl nfsio 78427 392693 0 0 3 0x14280 nfsidl nfsio 90507 238390 0 0 3 0x14280 nfsidl nfsio 57 251742 0 0 3 0x14280 nfsidl nfsio 77246 123607 0 0 3 0x14280 nfsidl nfsio 76774 430872 0 0 3 0x14280 nfsidl nfsio 32841 9139 0 0 3 0x14280 nfsidl nfsio 41232 227990 0 0 3 0x14280 nfsidl nfsio 85840 402061 0 0 3 0x14280 nfsidl nfsio 69174 248256 0 0 3 0x14280 nfsidl nfsio 63604 20763 0 0 3 0x14280 nfsidl nfsio 60487 3063 0 0 3 0x14280 nfsidl nfsio 50465 344412 0 0 3 0x14280 nfsidl nfsio 18603 48391 0 0 3 0x14280 nfsidl nfsio 53333 301141 67403 0 7 0x2 syz-fuzzer 53333 83639 67403 0 2 0x4000482 syz-fuzzer 53333 239048 67403 0 3 0x4000082 thrsleep syz-fuzzer 53333 473156 67403 0 3 0x4000082 thrsleep syz-fuzzer 53333 361924 67403 0 3 0x4000082 thrsleep syz-fuzzer 53333 296239 67403 0 2 0x4000082 syz-fuzzer 53333 20918 67403 0 3 0x4000082 thrsleep syz-fuzzer 53333 348198 67403 0 2 0x4000002 syz-fuzzer 53333 477602 67403 0 3 0x4000082 thrsleep syz-fuzzer 53333 202216 67403 0 3 0x4000082 thrsleep syz-fuzzer 67403 388774 52618 0 3 0x10008a sigsusp ksh 52618 393402 81239 0 3 0x9a kqread sshd 81239 404491 1 0 3 0x88 kqread sshd 96119 443515 43162 74 2 0x1100492 pflogd 43162 284708 1 0 3 0x80 netio pflogd 74016 233496 28408 73 2 0x1100010 syslogd 28408 73308 1 0 3 0x100082 netio syslogd 77824 384395 1 0 3 0x100080 kqread resolvd 6964 356725 83699 77 3 0x100092 kqread dhcpleased 60461 307401 83699 77 3 0x100092 kqread dhcpleased 83699 11549 1 0 3 0x80 kqread dhcpleased 21864 379818 0 0 2 0x14200 smr 25903 212345 0 0 3 0x14200 pgzero zerothread 81652 135644 0 0 3 0x14200 aiodoned aiodoned 64064 281796 0 0 2 0x14600 update 93870 146962 0 0 3 0x14200 cleaner cleaner *37923 519504 0 0 7 0x14200 reaper 60051 250678 0 0 3 0x14200 pgdaemon pagedaemon 97075 15497 0 0 3 0x14200 bored viomb 42479 383845 0 0 3 0x40014200 acpi0 acpi0 94905 211980 0 0 3 0x40014200 idle1 90031 329547 0 0 3 0x14200 bored softnet 66378 261198 0 0 2 0x14200 systqmp 46421 477414 0 0 2 0x14200 systq 4493 237504 0 0 2 0x40014200 softclock 150 252929 0 0 3 0x40014200 idle0 1 54186 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82b40e60) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 uvm_fault_unwire_locked+0x243 sys/uvm/uvm_fault.c:1667 #4 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:2136 #5 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 #7 reaper+0x18b sys/kern/kern_exit.c:457 #8 proc_trampoline+0x1c Process 53333 (syz-fuzzer) thread 0xffff8000ffff6550 (301141) exclusive rwlock pslock r = 0 (0xffff8000211a1190) #0 witness_lock+0x44d #1 thrsleep+0x334 sys/kern/kern_synch.c:698 #2 sys___thrsleep+0xad sys/kern/kern_synch.c:746 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 Process 74016 (syslogd) thread 0xffff8000ffff7270 (233496) exclusive rrwlock inode r = 0 (0xfffffd806e72cb40) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 sys_fsync+0xf5 sys/kern/vfs_syscalls.c:2924 #6 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #7 Xsyscall+0x128 Process 37923 (reaper) thread 0xffff8000210f97a0 (519504) exclusive rwlock uobjlk r = 0 (0xfffffd80692e5910) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 uvm_fault_unwire_locked+0x1e8 sys/uvm/uvm_fault.c:1655 #3 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:2136 #4 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #4 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 #5 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 #6 reaper+0x18b sys/kern/kern_exit.c:457 #7 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82b2e8b0) #0 witness_lock+0x44d #1 uvm_unmap_kill_entry_withlock+0x4c sys/uvm/uvm_map.c:2134 #2 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #2 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 #3 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 #4 reaper+0x18b sys/kern/kern_exit.c:457 #5 proc_trampoline+0x1c exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82b40e60) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 uvm_fault_unwire_locked+0x243 sys/uvm/uvm_fault.c:1667 #4 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:2136 #5 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 #7 reaper+0x18b sys/kern/kern_exit.c:457 #8 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 6564K 7152K 78643K 29134 0 pcb 13 16K 18K 78643K 847 0 rtable 153 15K 24K 78643K 2034 0 ifaddr 84 20K 25K 78643K 2606 0 sysctl 3 1K 1K 78643K 3 0 counters 48 34K 36K 78643K 226 0 ioctlops 0 0K 8K 78643K 14179 0 iov 0 0K 32K 78643K 1213 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1400 87K 88K 78643K 12713 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 44 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2353 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 7 18K 89K 78643K 15081 0 sigio 0 0K 0K 78643K 32 0 proc 79 88K 112K 78643K 1686 0 subproc 52 3K 6K 78643K 487 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2368 0 in_multi 51 3K 6K 78643K 622 0 ether_multi 1 0K 0K 78643K 41 0 mrt 1 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 259 1155K 1155K 78643K 259 0 exec 0 0K 2K 78643K 4081 0 pfkey data 0 0K 0K 78643K 3 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 486 754K 778K 78643K 194865 0 UVM aobj 131 8K 8K 78643K 143 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 2045 0 NDP 9 0K 2K 78643K 186 0 temp 121 4732K 4845K 78643K 120600 0 kqueue 12 18K 26K 78643K 1420 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 606 0 603 7 6 1 3 0 8 0 rtentry 112 495 0 437 4 1 3 4 0 8 0 unpcb 136 23162 0 23147 117 116 1 9 0 8 0 syncache 296 20 0 20 9 9 0 1 0 8 0 tcpqe 32 5 0 5 3 3 0 1 0 8 0 tcpcb 736 7452 0 7448 188 186 2 13 0 8 1 arp 120 83 0 73 1 0 1 1 0 8 0 inpcb 304 11259 0 11252 172 168 4 11 0 8 3 rttmr 72 4 0 3 1 0 1 1 0 8 0 nd6 48 126 0 115 1 0 1 1 0 8 0 pkpcb 40 10 0 10 3 3 0 1 0 8 0 kcovpl 48 37 0 33 1 0 1 1 0 8 0 ppxss 1248 17 0 17 4 4 0 1 0 8 0 pfstscr 40 8534 0 8534 2 2 0 1 0 8 0 pffrag 232 57 0 57 8 8 0 1 0 482 0 pffrnode 88 57 0 57 8 8 0 1 0 8 0 pffrent 40 114 0 114 8 8 0 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 pfrktable 1344 241 0 235 5 4 1 2 0 8 0 pftag 88 126 0 111 2 1 1 1 0 8 0 pfqueue 264 71 0 71 3 3 0 1 0 8 0 pfstitem 24 6453 0 6451 1 0 1 1 0 8 0 pfstkey 112 15406 0 15404 1 0 1 1 0 8 0 pfstate 320 7727 0 7725 3 2 1 3 0 8 0 pfrule 1360 1579 0 1449 19 5 14 14 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2095 0 1796 38 10 28 29 0 8 0 art_table 32 2096 0 1796 4 0 4 4 0 8 0 art_node 16 494 0 444 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 2348 0 2338 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 26425 0 24966 92 0 92 92 0 8 0 ffsino 272 26425 0 24966 98 0 98 98 0 8 0 nchpl 144 46849 0 45231 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 193392 0 193392 4 3 1 2 0 8 1 percpumem 16 125 0 89 1 0 1 1 0 8 0 vcpupl 2048 47 0 2 6 0 6 6 0 8 0 vmpool 560 127 0 82 4 0 4 4 0 8 0 pfiaddrpl 120 221 0 214 3 2 1 1 0 8 0 scxspl 216 111401 0 111401 26 25 1 8 0 8 1 plimitpl 152 1025 0 1013 1 0 1 1 0 8 0 sigapl 424 15340 0 15283 8 0 8 8 0 8 0 futexpl 64 172927 0 172926 1 0 1 1 0 8 0 knotepl 120 181 0 0 4 0 4 4 0 8 0 kqueuepl 216 4248 0 4239 50 49 1 8 0 8 0 pipepl 336 2011 0 1988 72 67 5 13 0 8 2 fdescpl 496 15305 0 15285 7 3 4 5 0 8 0 filepl 152 147700 0 147535 241 228 13 22 0 8 2 lockfpl 104 2192 0 2190 5 4 1 2 0 8 0 lockfspl 48 598 0 596 1 0 1 1 0 8 0 sessionpl 144 54 0 40 1 0 1 1 0 8 0 pgrppl 48 167 0 153 1 0 1 1 0 8 0 ucredpl 96 48002 0 47989 1 0 1 1 0 8 0 zombiepl 144 15286 0 15283 1 0 1 1 0 8 0 processpl 1064 15340 0 15283 5 0 5 5 0 8 0 procpl 672 45617 0 45550 38 29 9 10 0 8 1 srpgc 96 24 0 24 9 9 0 1 0 8 0 sosppl 168 28 0 28 8 8 0 1 0 8 0 sockpl 480 35042 0 35017 744 736 8 36 0 8 4 mcl64k 65536 59 0 0 3 0 3 3 0 8 0 mcl16k 16384 81 0 0 10 7 3 3 0 8 0 mcl12k 12288 64 0 0 2 0 2 2 0 8 0 mcl9k 9216 31 0 0 2 0 2 2 0 8 0 mcl8k 8192 42 0 0 4 1 3 3 0 8 1 mcl4k 4096 41 0 0 5 2 3 3 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 310 0 0 22 1 21 22 0 8 0 mtagpl 96 651 0 0 9 1 8 8 0 8 0 mbufpl 256 1281 0 0 57 1 56 57 0 8 0 bufpl 288 23916 0 17580 453 0 453 453 0 8 0 anonpl 24 4261563 0 4242311 257 115 142 145 0 186 2 amapchunkpl 152 468170 0 467152 112 66 46 48 0 158 3 amappl16 200 37884 0 37270 138 104 34 46 0 8 0 amappl15 192 1320 0 1315 1 0 1 1 0 8 0 amappl14 184 1474 0 1469 1 0 1 1 0 8 0 amappl13 176 4687 0 4683 1 0 1 1 0 8 0 amappl12 168 119 0 116 1 0 1 1 0 8 0 amappl11 160 2198 0 2182 1 0 1 1 0 8 0 amappl10 152 313 0 304 1 0 1 1 0 8 0 amappl9 144 1790 0 1786 1 0 1 1 0 8 0 amappl8 136 5549 0 5413 6 0 6 6 0 8 1 amappl7 128 4432 0 4419 1 0 1 1 0 8 0 amappl6 120 1601 0 1570 4 3 1 2 0 8 0 amappl5 112 12833 0 12816 1 0 1 1 0 8 0 amappl4 104 5333 0 5295 2 0 2 2 0 8 0 amappl3 96 3369 0 3354 1 0 1 1 0 8 0 amappl2 88 6518 0 6452 3 1 2 3 0 8 0 amappl1 80 277378 0 276883 21 8 13 19 0 8 0 amappl 88 193585 0 193310 10 2 8 8 0 92 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 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 15432 0 15367 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 15432 0 15367 1 0 1 1 0 8 0 vmmpekpl 168 117261 0 117205 4 0 4 4 0 8 0 vmmpepl 168 1390393 0 1387158 321 180 141 179 0 357 0 vmsppl 368 15431 0 15366 9 2 7 7 0 8 0 rwobjpl 56 339271 0 331543 127 15 112 114 0 8 0 pdppl 4096 30871 0 30777 763 653 110 114 0 8 16 pvpl 32 7051338 0 7031338 512 252 260 263 0 265 33 pmappl 248 15431 0 15366 9 4 5 5 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1850 0 940 27 0 27 27 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82579e30) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ec956,ffffffff82568aa4,4fb,ffffffff8259eda1) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_pageunwire(fffffd8006a64960) at uvm_pageunwire+0x19b sys/uvm/uvm_page.c:1275 uvm_fault_unwire_locked(fffffd8068b2ae90,9a4edc5b000,9a4ede5a000) at uvm_fault_unwire_locked+0x24b sys/uvm/uvm_fault.c:1668 uvm_unmap_kill_entry_withlock(fffffd8068b2ae90,fffffd80756bfb28,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:2136 uvm_map_teardown(fffffd8068b2ae90) at uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd8068b2ae90) at uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 uvmspace_free(fffffd8068b2ae90) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f97a0) at reaper+0x18b sys/kern/kern_exit.c:457 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82b2e6a8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b2e6a8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff8000211ce610,ffff8000211ce640,120,ffffffff825ec019,0) at sleep_setup+0xd3 sys/kern/kern_synch.c:374 thrsleep(ffff8000ffff6550,ffff8000211ce720) at thrsleep+0x500 rwsleep sys/kern/kern_synch.c:315 [inline] thrsleep(ffff8000ffff6550,ffff8000211ce720) at thrsleep+0x500 sys/kern/kern_synch.c:705 sys___thrsleep(ffff8000ffff6550,ffff8000211ce720,ffff8000211ce780) at sys___thrsleep+0xad sys/kern/kern_synch.c:746 syscall(ffff8000211ce7f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211ce7f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe9fc0, count: 6 ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82b2e6a8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b2e6a8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff8000211ce610,ffff8000211ce640,120,ffffffff825ec019,0) at sleep_setup+0xd3 sys/kern/kern_synch.c:374 thrsleep(ffff8000ffff6550,ffff8000211ce720) at thrsleep+0x500 rwsleep sys/kern/kern_synch.c:315 [inline] thrsleep(ffff8000ffff6550,ffff8000211ce720) at thrsleep+0x500 sys/kern/kern_synch.c:705 sys___thrsleep(ffff8000ffff6550,ffff8000211ce720,ffff8000211ce780) at sys___thrsleep+0xad sys/kern/kern_synch.c:746 syscall(ffff8000211ce7f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211ce7f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe9fc0, count: -9