uvm_fault(fffffd806e9595c8,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e9595c8,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff8000241b53c0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff8000241b53c0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec64f8,ffff8000241b5588,ffff8000241b55d0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff8000241b5650) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241b5650) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x649a4069710, count: 243 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff82689cb8,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806e9595c8,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806e9595c8,fffffd807bdf94f8,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806e9595c8,fffffd807bdf94f8,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806e9595c8,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e9595c8,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff8000241b53c0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff8000241b53c0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec64f8,ffff8000241b5588,ffff8000241b55d0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff8000241b5650) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241b5650) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x649a4069710, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff8000241b4e40 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002216c000 rax 0xffff800000a1c340 r8 0xffffffff81e4dd8f kprintf+0x16f r9 0x1 r10 0xffff8000241b4cd0 r11 0xeaeb51ae5a88aed4 r12 0x1 r13 0xfffffd8064cc1d30 r14 0xffff800020ec64f8 r15 0x3 rip 0xffffffff81d22ca8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000241b4e30 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=502031 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=54, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec6c48,0xffffffff826b9bd0 process=0xffff800020e92ba8 user=0xffff8000241b0000, vmspace=0xfffffd806e9595c8 estcpu=4, cpticks=16, pctcpu=0.0 user=0, sys=16, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 47550 112663 28354 0 2 0 syz-executor.0 *47550 502031 28354 0 7 0x4000000 syz-executor.0 75864 200856 56671 0 7 0 syz-executor.1 75864 265036 56671 0 2 0x4000000 syz-executor.1 28354 50833 69100 0 3 0x82 nanosleep syz-executor.0 65955 515632 0 0 3 0x14200 bored sosplice 56671 163500 69100 0 3 0x82 nanosleep syz-executor.1 69100 256880 22396 0 3 0x82 thrsleep syz-fuzzer 69100 45095 22396 0 3 0x4000082 nanosleep syz-fuzzer 69100 310106 22396 0 3 0x4000082 thrsleep syz-fuzzer 69100 443450 22396 0 3 0x4000082 thrsleep syz-fuzzer 69100 133609 22396 0 3 0x4000082 thrsleep syz-fuzzer 69100 503177 22396 0 3 0x4000082 thrsleep syz-fuzzer 69100 166406 22396 0 3 0x4000082 thrsleep syz-fuzzer 69100 251514 22396 0 3 0x4000082 thrsleep syz-fuzzer 69100 374984 22396 0 3 0x4000082 thrsleep syz-fuzzer 69100 128546 22396 0 3 0x4000082 kqread syz-fuzzer 22396 147566 96536 0 3 0x10008a pause ksh 96536 222848 83905 0 3 0x92 select sshd 70539 158599 1 0 3 0x100083 ttyin getty 83905 214448 1 0 3 0x80 select sshd 88168 472738 2085 74 3 0x100092 bpf pflogd 2085 184981 1 0 3 0x80 netio pflogd 47446 321641 1895 73 3 0x100090 kqread syslogd 1895 67485 1 0 3 0x100082 netio syslogd 66242 381418 1 77 3 0x100090 poll dhclient 21652 99063 1 0 3 0x80 poll dhclient 18374 403935 0 0 3 0x14200 bored smr 53075 112927 0 0 2 0x14200 zerothread 93525 316948 0 0 3 0x14200 aiodoned aiodoned 13955 230821 0 0 3 0x14200 syncer update 73973 264121 0 0 3 0x14200 cleaner cleaner 35114 23243 0 0 3 0x14200 reaper reaper 75222 195870 0 0 3 0x14200 pgdaemon pagedaemon 31509 465485 0 0 3 0x14200 bored crynlk 11362 258803 0 0 3 0x14200 bored crypto 95321 57988 0 0 3 0x40014200 acpi0 acpi0 65416 238079 0 0 3 0x40014200 idle1 70920 249799 0 0 3 0x14200 bored softnet 79090 421699 0 0 3 0x14200 bored systqmp 33352 428688 0 0 3 0x14200 bored systq 68932 68734 0 0 3 0x40014200 bored softclock 21900 274910 0 0 3 0x40014200 idle0 1 488913 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 47550 (syz-executor.0) thread 0xffff800020ec64f8 (502031) exclusive rwlock vmmaplk r = 0 (0xfffffd806e9595e0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5445 #3 uvmfault_lookup+0xbe sys/uvm/uvm_fault.c:1442 #4 uvm_fault+0xbbd uvmfault_amapcopy sys/uvm/uvm_fault.c:232 [inline] #4 uvm_fault+0xbbd sys/uvm/uvm_fault.c:559 #5 pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 #6 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #7 alltraps_kern_meltdown+0x7b #8 copyin+0x4b #9 sys_connect+0x9b sys/kern/uipc_syscalls.c:360 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff8253ffa8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sys_connect+0x6a sys/kern/uipc_syscalls.c:355 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff826941b8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570 #2 Xsyscall+0x128 Process 75864 (syz-executor.1) thread 0xffff800020ec6c48 (265036) exclusive rwlock vmmaplk r = 0 (0xfffffd806e959020) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5445 #3 uvm_map_protect+0xbe uvm_map_addr_RBT_ROOT sys/uvm/uvm_map.h:176 [inline] #3 uvm_map_protect+0xbe uvm_map_entrybyaddr sys/uvm/uvm_map.c:537 [inline] #3 uvm_map_protect+0xbe sys/uvm/uvm_map.c:3312 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9538 6422K 6734K 78643K 11176 0 pcb 14 8K 8K 78643K 103 0 rtable 103 4K 4K 78643K 402 0 ifaddr 84 16K 16K 78643K 138 0 sysctl 1 1K 1K 78643K 1 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1502 0 iov 0 0K 16K 78643K 75 0 mount 1 1K 1K 78643K 1 0 vnodes 1214 76K 77K 78643K 1452 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 10 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 57 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 550 0 sigio 0 0K 0K 78643K 10 0 proc 62 63K 83K 78643K 527 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 26 0 in_multi 54 3K 3K 78643K 97 0 ether_multi 1 0K 0K 78643K 10 0 mrt 1 0K 0K 78643K 10 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 269 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 121 39K 39K 78643K 2720 0 UVM aobj 30 2K 2K 78643K 30 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 59 0 NDP 14 0K 0K 78643K 29 0 temp 120 3038K 3113K 78643K 10970 0 kqueue 3 4K 12K 78643K 46 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 arp 64 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 39 0 37 1 0 1 1 0 8 0 rtentry 112 90 0 50 2 0 2 2 0 8 0 unpcb 120 343 0 332 1 0 1 1 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 104 0 104 1 1 0 1 0 8 0 tcpcb 544 217 0 213 1 0 1 1 0 8 0 inpcb 280 658 0 650 5 4 1 2 0 8 0 rttmr 72 4 0 4 3 3 0 1 0 8 0 nd6 48 10 0 7 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 3 0 3 1 1 0 1 0 8 0 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pffrag 232 4 0 4 1 1 0 1 0 482 0 pffrnode 88 4 0 4 1 1 0 1 0 8 0 pffrent 40 10 0 10 1 1 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 56 0 38 1 0 1 1 0 8 0 pfstkey 112 58 0 40 2 0 2 2 0 8 0 pfstate 328 56 0 39 4 1 3 4 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 264 0 96 13 1 12 13 0 8 0 art_table 32 266 0 96 2 0 2 2 0 8 0 art_node 16 89 0 53 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 19 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 49 0 39 1 0 1 1 0 8 0 shmpl 112 28 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2159 0 760 89 0 89 89 0 8 0 ffsino 272 2159 0 760 95 0 95 95 0 8 0 nchpl 144 3227 0 1631 60 0 60 60 0 8 0 uvmvnodes 72 2334 0 0 43 0 43 43 0 8 0 vnodes 208 2334 0 0 123 0 123 123 0 8 0 namei 1024 9546 0 9546 7 6 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 2 1 0 1 1 0 8 0 scsiplug 64 3 0 3 2 2 0 1 0 8 0 scxspl 192 8548 0 8548 10 9 1 6 0 8 1 plimitpl 152 43 0 35 1 0 1 1 0 8 0 sigapl 424 763 0 730 4 0 4 4 0 8 0 futexpl 56 7844 0 7844 7 6 1 1 0 8 1 knotepl 112 181 0 162 1 0 1 1 0 8 0 kqueuepl 144 530 0 525 1 0 1 1 0 8 0 pipelkpl 48 160 0 150 1 0 1 1 0 8 0 pipepl 120 320 0 301 2 1 1 2 0 8 0 fdescpl 496 747 0 730 3 0 3 3 0 8 0 filepl 152 5264 0 5163 9 4 5 7 0 8 1 lockfpl 104 99 0 98 1 0 1 1 0 8 0 lockfspl 48 39 0 38 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 1127 0 1118 1 0 1 1 0 8 0 zombiepl 144 752 0 752 2 1 1 1 0 8 1 processpl 984 763 0 730 5 0 5 5 0 8 0 procpl 624 1888 0 1844 4 0 4 4 0 8 0 sosppl 128 12 0 12 3 3 0 1 0 8 0 sockpl 400 1053 0 1032 8 5 3 4 0 8 0 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 207 0 0 25 0 25 25 0 8 0 mtagpl 80 24 0 0 1 0 1 1 0 8 0 mbufpl 256 323 0 0 16 0 16 16 0 8 0 bufpl 280 5160 0 138 359 0 359 359 0 8 0 anonpl 16 83842 0 68798 85 24 61 76 0 124 0 amapchunkpl 152 4999 0 4853 22 15 7 20 0 158 0 amappl16 192 3433 0 2632 54 13 41 52 0 8 0 amappl15 184 376 0 373 1 0 1 1 0 8 0 amappl14 176 33 0 28 1 0 1 1 0 8 0 amappl13 168 36 0 32 1 0 1 1 0 8 0 amappl12 160 18 0 15 1 0 1 1 0 8 0 amappl11 152 60 0 45 1 0 1 1 0 8 0 amappl10 144 25 0 19 1 0 1 1 0 8 0 amappl9 136 502 0 499 1 0 1 1 0 8 0 amappl8 128 517 0 482 2 0 2 2 0 8 0 amappl7 120 126 0 112 1 0 1 1 0 8 0 amappl6 112 26 0 21 1 0 1 1 0 8 0 amappl5 104 666 0 649 1 0 1 1 0 8 0 amappl4 96 516 0 484 1 0 1 1 0 8 0 amappl3 88 118 0 113 1 0 1 1 0 8 0 amappl2 80 5341 0 5259 2 0 2 2 0 8 0 amappl1 72 25582 0 25129 23 13 10 18 0 8 0 amappl 80 2167 0 2120 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 29 0 0 1 0 1 1 0 8 0 uaddrrnd 24 751 0 732 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 751 0 732 1 0 1 1 0 8 0 vmmpekpl 168 9235 0 9200 2 0 2 2 0 8 0 vmmpepl 168 97568 0 95495 147 56 91 116 0 357 0 vmsppl 368 750 0 732 2 0 2 2 0 8 0 pdppl 4096 1510 0 1466 6 0 6 6 0 8 0 pvpl 32 257924 0 239608 208 58 150 185 0 265 0 pmappl 232 750 0 732 5 3 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 280 0 15 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8249dff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_cmp4(ffffffff82693fb0,ffffffff82693fb0) at __sanitizer_cov_trace_cmp4+0x6b sys/dev/kcov.c:137 intr_handler(ffff800021f6b000,ffff800000658e00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff82693fb0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82693fb0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffd14f0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff82689cb8,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806e9595c8,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806e9595c8,fffffd807bdf94f8,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806e9595c8,fffffd807bdf94f8,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806e9595c8,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e9595c8,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff8000241b53c0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff8000241b53c0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec64f8,ffff8000241b5588,ffff8000241b55d0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff8000241b5650) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241b5650) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x649a4069710, count: -14