panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1269 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 124609 91086 0 0x2 0x4000000 0 syz-fuzzer *205576 38374 0 0x14000 0x200 1K reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825ad82c) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82622da0,ffffffff8259b18b,4f5,ffffffff825d1ce3) at __assert+0x25 sys/kern/subr_prf.c:157 uvm_pageunwire(fffffd8007dabfc0) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1269 uvm_fault_unwire_locked(fffffd8067cdbe78,3bd33cbb000,3bd33eba000) at uvm_fault_unwire_locked+0x236 sys/uvm/uvm_fault.c:1683 uvm_unmap_kill_entry_withlock(fffffd8067cdbe78,fffffd806aae1e98,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1925 uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 uvmspace_free(fffffd8067cdbe78) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 reaper(ffff800021232548) at reaper+0x19a sys/kern/kern_exit.c:448 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1269 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825ad82c) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82622da0,ffffffff8259b18b,4f5,ffffffff825d1ce3) at __assert+0x25 sys/kern/subr_prf.c:157 uvm_pageunwire(fffffd8007dabfc0) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1269 uvm_fault_unwire_locked(fffffd8067cdbe78,3bd33cbb000,3bd33eba000) at uvm_fault_unwire_locked+0x236 sys/uvm/uvm_fault.c:1683 uvm_unmap_kill_entry_withlock(fffffd8067cdbe78,fffffd806aae1e98,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1925 uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 uvmspace_free(fffffd8067cdbe78) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 reaper(ffff800021232548) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800021238d10 rbx 0xffff800020dd9b8f rdx 0 rcx 0 rax 0xffff800021232548 r8 0x101010101010101 r9 0x8080808080808080 r10 0xbd596947660a7ac5 r11 0x4429262cc3e985c4 r12 0xffff800020dd9990 r13 0 r14 0 r15 0x1 rip 0xffffffff82231758 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021238d00 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (reaper) pid=205576 stat=onproc flags process=14000 proc=200 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000212327e8,0xffff800021232018 process=0xffff8000fffff240 user=0xffff800021234000, vmspace=0xffffffff82b3f2f8 estcpu=32, cpticks=2, pctcpu=25.6 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44807 323702 91086 0 2 0 syz-fuzzer 35089 113802 1 0 3 0x100083 ttyin getty 67479 178615 91086 0 3 0x82 piperd syz-executor.5 63934 205610 91086 0 3 0x82 piperd syz-executor.6 33016 21384 0 0 3 0x14200 bored sosplice 39492 258936 78147 0 3 0x100082 netio ndp 78147 433977 1 0 3 0x10008a sigsusp sh 55324 403576 91086 0 3 0x82 piperd syz-executor.4 72825 97470 91086 0 3 0x82 piperd syz-executor.3 8342 125566 91086 0 3 0x82 piperd syz-executor.2 55931 459011 91086 0 3 0x82 piperd syz-executor.1 17958 102731 91086 0 3 0x82 wait syz-executor.0 91086 276332 18071 0 3 0x82 wait syz-fuzzer 91086 151976 18071 0 3 0x4000082 nanoslp syz-fuzzer 91086 456792 18071 0 3 0x4000082 wait syz-fuzzer 91086 513876 18071 0 3 0x4000082 wait syz-fuzzer 91086 55720 18071 0 3 0x4000082 wait syz-fuzzer 91086 291581 18071 0 3 0x4000082 thrsleep syz-fuzzer 91086 228209 18071 0 3 0x4000082 thrsleep syz-fuzzer 91086 124609 18071 0 7 0x4000002 syz-fuzzer 91086 443701 18071 0 3 0x4000082 thrsleep syz-fuzzer 91086 461406 18071 0 3 0x4000082 thrsleep syz-fuzzer 91086 26138 18071 0 3 0x4000082 wait syz-fuzzer 91086 324075 18071 0 3 0x4000082 piperd syz-fuzzer 91086 329069 18071 0 3 0x4000082 wait syz-fuzzer 91086 165195 18071 0 3 0x4000082 thrsleep syz-fuzzer 91086 382450 18071 0 2 0x4000082 syz-fuzzer 91086 90654 18071 0 3 0x4000082 wait syz-fuzzer 18071 213343 67968 0 3 0x10008a sigsusp ksh 67968 25905 90539 0 3 0x9a kqread sshd 90539 30248 1 0 3 0x88 kqread sshd 16283 332603 2082 74 3 0x1100092 bpf pflogd 2082 254187 1 0 3 0x80 netio pflogd 24559 124034 97859 73 3 0x1100010 biowait syslogd 97859 56626 1 0 3 0x100082 netio syslogd 38239 449559 1 0 3 0x100080 kqread resolvd 9255 4204 19410 77 3 0x100092 kqread dhcpleased 35751 441831 19410 77 3 0x100092 kqread dhcpleased 19410 21720 1 0 3 0x80 kqread dhcpleased 48828 1804 0 0 3 0x14200 bored smr 74162 138004 0 0 3 0x14200 pgzero zerothread 66993 194345 0 0 3 0x14200 aiodoned aiodoned 11681 168311 0 0 3 0x14200 syncer update 39458 278395 0 0 3 0x14200 cleaner cleaner *38374 205576 0 0 7 0x14200 reaper 29102 288231 0 0 3 0x14200 pgdaemon pagedaemon 29458 260128 0 0 3 0x14200 bored viomb 34645 385184 0 0 3 0x40014200 acpi0 acpi0 51608 155077 0 0 3 0x40014200 idle1 93834 157674 0 0 3 0x14200 bored softnet 54309 386260 0 0 3 0x14200 bored softnet 49355 480080 0 0 3 0x14200 bored softnet 58593 406047 0 0 3 0x14200 bored softnet 8230 429097 0 0 3 0x14200 bored systqmp 58841 190862 0 0 3 0x14200 bored systq 34000 37898 0 0 3 0x40014200 bored softclock 59045 346983 0 0 3 0x40014200 idle0 1 309320 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82a1c6a0) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 uvm_fault_unwire_locked+0x22e sys/uvm/uvm_fault.c:1682 #4 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1925 #5 uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 #7 reaper+0x19a sys/kern/kern_exit.c:448 #8 proc_trampoline+0x1c Process 91086 (syz-fuzzer) thread 0xffff8000ffff47e8 (124609) shared rwlock vmmaplk r = 0 (0xfffffd806ef51da0) #0 witness_lock+0x44d #1 uvmfault_lookup+0xc9 sys/uvm/uvm_fault.c:1773 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #4 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #5 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417 #6 recall_trap+0x8 Process 24559 (syslogd) thread 0xffff8000ffff7a50 (124034) exclusive rrwlock inode r = 0 (0xfffffd806e74c2c0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf5 sys/kern/vfs_syscalls.c:2935 #6 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #6 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #7 Xsyscall+0x128 Process 38374 (reaper) thread 0xffff800021232548 (205576) exclusive rwlock uobjlk r = 0 (0xfffffd806b7c4718) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 uvm_fault_unwire_locked+0x1d6 sys/uvm/uvm_fault.c:1670 #3 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1925 #4 uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #4 uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 #5 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 #6 reaper+0x19a sys/kern/kern_exit.c:448 #7 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82b7f078) #0 witness_lock+0x44d #1 uvm_unmap_kill_entry_withlock+0x4c sys/uvm/uvm_map.c:1923 #2 uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #2 uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 #3 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 #4 reaper+0x19a sys/kern/kern_exit.c:448 #5 proc_trampoline+0x1c exclusive rwlock vmmaplk r = 0 (0xfffffd8067cdbf20) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5332 #3 uvm_map_teardown+0x81 sys/uvm/uvm_map.c:2546 #4 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 #5 reaper+0x19a sys/kern/kern_exit.c:448 #6 proc_trampoline+0x1c exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82a1c6a0) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 uvm_fault_unwire_locked+0x22e sys/uvm/uvm_fault.c:1682 #4 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1925 #5 uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 #7 reaper+0x19a sys/kern/kern_exit.c:448 #8 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10219 6493K 7077K 78643K 14242 0 pcb 13 8K 8K 78643K 410 0 rtable 177 6K 7K 78643K 670 0 ifaddr 72 17K 19K 78643K 249 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 36K 78643K 160 0 ioctlops 0 0K 4K 78643K 1685 0 iov 0 0K 24K 78643K 260 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1298 81K 81K 78643K 2550 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 206 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 38K 85K 78643K 3835 0 sigio 0 0K 0K 78643K 8 0 proc 71 91K 115K 78643K 838 0 subproc 104 6K 7K 78643K 143 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 282 0 in_multi 78 5K 7K 78643K 336 0 ether_multi 1 0K 0K 78643K 36 0 mrt 1 0K 0K 78643K 45 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 109 493K 493K 78643K 109 0 exec 0 0K 1K 78643K 536 0 pfkey data 0 0K 0K 78643K 4 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 8 62K 64K 78643K 10 0 UVM amap 324 85K 107K 78643K 24201 0 UVM aobj 25 2K 2K 78643K 25 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 278 0 NDP 11 0K 2K 78643K 73 0 temp 125 4690K 5714K 78643K 26571 0 kqueue 12 18K 26K 78643K 305 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> 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 120 180 0 176 1 0 1 1 0 8 0 rtentry 112 195 0 118 4 0 4 4 0 8 0 unpcb 144 1090 0 1075 4 3 1 2 0 8 0 syncache 296 37 0 37 4 4 0 1 0 8 0 tcpqe 32 97 0 97 5 4 1 1 0 8 1 tcpcb 776 847 0 843 6 5 1 3 0 8 0 arp 120 29 0 16 1 0 1 1 0 8 0 inpcb 368 2144 0 2137 7 6 1 3 0 8 0 nd6 48 34 0 16 1 0 1 1 0 8 0 pkpcb 40 31 0 31 6 6 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1256 22 0 22 3 3 0 1 0 8 0 pppxif 1448 14 0 14 3 3 0 1 0 8 0 pfstscr 40 7 0 7 3 3 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 1 0 1 1 1 0 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 pfanchor 1280 949 5 500 43 4 39 43 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 4 0 4 1 1 0 1 0 8 0 pfstitem 24 95 0 89 1 0 1 1 0 8 0 pfstkey 128 103 0 97 2 0 2 2 0 8 0 pfstate 384 97 0 91 8 6 2 6 0 8 0 pfrule 1344 21 0 20 2 1 1 2 0 8 0 rttmr 136 11 0 11 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 815 0 454 32 4 28 32 0 8 1 art_table 32 816 0 454 5 1 4 5 0 8 0 art_node 16 191 0 124 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 27 1 1 0 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 204 0 194 1 0 1 1 0 8 0 shmpl 112 22 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6239 0 4782 92 0 92 92 0 8 0 ffsino 272 6239 0 4782 98 0 98 98 0 8 0 nchpl 144 10830 0 9199 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 28019 0 28019 3 2 1 2 0 8 1 percpumem 16 92 0 52 1 0 1 1 0 8 0 vmpool 696 4 0 4 1 1 0 1 0 8 0 kstatmem 264 98 0 76 2 0 2 2 0 8 0 scxspl 216 36892 0 36888 11 10 1 8 0 8 0 plimitpl 152 177 0 160 1 0 1 1 0 8 0 sigapl 424 4155 0 4110 7 1 6 6 0 8 0 futexpl 64 25375 0 25375 3 2 1 1 0 8 1 knotepl 120 545 0 0 15 0 15 15 0 8 0 kqueuepl 216 419 0 411 1 0 1 1 0 8 0 pipepl 320 325 0 293 5 2 3 4 0 8 0 fdescpl 496 4137 0 4112 5 0 5 5 0 8 0 filepl 152 12752 0 12506 15 4 11 12 0 8 0 lockfpl 104 496 0 494 1 0 1 1 0 8 0 lockfspl 48 158 0 156 1 0 1 1 0 8 0 sessionpl 144 31 0 13 1 0 1 1 0 8 0 pgrppl 48 34 0 16 1 0 1 1 0 8 0 ucredpl 104 1584 0 1572 1 0 1 1 0 8 0 zombiepl 144 4112 0 4110 2 1 1 1 0 8 0 processpl 1072 4155 0 4110 4 0 4 4 0 8 0 procpl 672 8318 0 8254 10 3 7 8 0 8 0 srpgc 96 4 0 4 2 2 0 1 0 8 0 sosppl 168 76 0 76 4 4 0 1 0 8 0 sockpl 488 3445 0 3419 14 10 4 7 0 8 0 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 10 0 0 2 0 2 2 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 22 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 318 0 0 37 1 36 37 0 8 0 mtagpl 96 299 0 0 8 0 8 8 0 8 0 mbufpl 256 799 0 0 41 0 41 41 0 8 0 bufpl 288 9814 0 3485 453 0 453 453 0 8 0 anonpl 24 729713 0 716586 116 32 84 84 0 186 3 amapchunkpl 152 67607 0 66627 62 24 38 38 0 158 0 amappl16 200 6959 0 6751 21 10 11 17 0 8 0 amappl15 192 6 0 5 1 0 1 1 0 8 0 amappl14 184 174 0 154 2 1 1 2 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 460 0 458 1 0 1 1 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 55 0 37 1 0 1 1 0 8 0 amappl9 144 951 0 950 2 1 1 1 0 8 0 amappl8 136 240 0 171 3 0 3 3 0 8 0 amappl7 128 166 0 138 2 1 1 2 0 8 0 amappl6 120 198 0 180 2 1 1 2 0 8 0 amappl5 112 144 0 135 1 0 1 1 0 8 0 amappl4 104 542 0 508 2 1 1 2 0 8 0 amappl3 96 10434 0 10378 2 0 2 2 0 8 0 amappl2 88 4571 0 4485 6 3 3 3 0 8 0 amappl1 80 90015 0 89245 25 6 19 23 0 8 0 amappl 88 23544 0 23358 5 0 5 5 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 24 0 0 1 0 1 1 0 8 0 uaddrrnd 24 4141 0 4115 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4141 0 4115 1 0 1 1 0 8 0 vmmpekpl 168 26889 0 26837 3 0 3 3 0 8 0 vmmpepl 168 362640 0 359877 158 37 121 127 0 357 0 vmsppl 368 4140 0 4114 4 0 4 4 0 8 0 rwobjpl 56 94329 0 86972 109 4 105 106 0 8 0 pdppl 4096 8289 0 8228 173 100 73 79 0 8 12 pvpl 32 1742535 0 1723447 356 161 195 275 0 265 23 pmappl 248 4140 0 4114 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 960 0 118 25 0 25 25 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8294aff0) 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(ffffffff82b7ee70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b7ee70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002132c400,ffff80000067c100) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge24_untramp() at Xintr_ioapic_edge24_untramp+0x18f __mp_lock(ffffffff82b7ee70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b7ee70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002132c550,ffff80000006ba00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f _rb_left(ffffffff828e9078,fffffd806f0a09e0) at _rb_left+0x2c sys/kern/subr_tree.c:575 uvm_map_lookup_entry(fffffd806ef51cf8,293b25000,ffff80002132c8d8) at uvm_map_lookup_entry+0xf9 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_lookup_entry(fffffd806ef51cf8,293b25000,ffff80002132c8d8) at uvm_map_lookup_entry+0xf9 uvm_map_entrybyaddr sys/uvm/uvm_map.c:529 [inline] uvm_map_lookup_entry(fffffd806ef51cf8,293b25000,ffff80002132c8d8) at uvm_map_lookup_entry+0xf9 sys/uvm/uvm_map.c:1595 uvmfault_lookup(ffff80002132c8b0,0) at uvmfault_lookup+0xda sys/uvm/uvm_fault.c:1773 uvm_fault_check(ffff80002132c8b0,ffff80002132c8e8,ffff80002132c910) at uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 uvm_fault(fffffd806ef51cf8,293b25000,0,2) at uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 end trace frame: 0xffff80002132c9c0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8294aff0) 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(ffffffff82b7ee70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b7ee70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002132c400,ffff80000067c100) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge24_untramp() at Xintr_ioapic_edge24_untramp+0x18f __mp_lock(ffffffff82b7ee70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82b7ee70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002132c550,ffff80000006ba00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f _rb_left(ffffffff828e9078,fffffd806f0a09e0) at _rb_left+0x2c sys/kern/subr_tree.c:575 uvm_map_lookup_entry(fffffd806ef51cf8,293b25000,ffff80002132c8d8) at uvm_map_lookup_entry+0xf9 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_lookup_entry(fffffd806ef51cf8,293b25000,ffff80002132c8d8) at uvm_map_lookup_entry+0xf9 uvm_map_entrybyaddr sys/uvm/uvm_map.c:529 [inline] uvm_map_lookup_entry(fffffd806ef51cf8,293b25000,ffff80002132c8d8) at uvm_map_lookup_entry+0xf9 sys/uvm/uvm_map.c:1595 uvmfault_lookup(ffff80002132c8b0,0) at uvmfault_lookup+0xda sys/uvm/uvm_fault.c:1773 uvm_fault_check(ffff80002132c8b0,ffff80002132c8e8,ffff80002132c910) at uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 uvm_fault(fffffd806ef51cf8,293b25000,0,2) at uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 upageflttrap(ffff80002132ca20,293b25580) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 usertrap(ffff80002132ca20) at usertrap+0x1aa sys/arch/amd64/amd64/trap.c:417 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc00010d050, count: -17 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825ad82c) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82622da0,ffffffff8259b18b,4f5,ffffffff825d1ce3) at __assert+0x25 sys/kern/subr_prf.c:157 uvm_pageunwire(fffffd8007dabfc0) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1269 uvm_fault_unwire_locked(fffffd8067cdbe78,3bd33cbb000,3bd33eba000) at uvm_fault_unwire_locked+0x236 sys/uvm/uvm_fault.c:1683 uvm_unmap_kill_entry_withlock(fffffd8067cdbe78,fffffd806aae1e98,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1925 uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 uvmspace_free(fffffd8067cdbe78) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 reaper(ffff800021232548) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: 6 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825ad82c) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82622da0,ffffffff8259b18b,4f5,ffffffff825d1ce3) at __assert+0x25 sys/kern/subr_prf.c:157 uvm_pageunwire(fffffd8007dabfc0) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1269 uvm_fault_unwire_locked(fffffd8067cdbe78,3bd33cbb000,3bd33eba000) at uvm_fault_unwire_locked+0x236 sys/uvm/uvm_fault.c:1683 uvm_unmap_kill_entry_withlock(fffffd8067cdbe78,fffffd806aae1e98,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1925 uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd8067cdbe78) at uvm_map_teardown+0x187 sys/uvm/uvm_map.c:2578 uvmspace_free(fffffd8067cdbe78) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513 reaper(ffff800021232548) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: -9