uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff80002417f260,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff80002417f260) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec6eb8,ffff80002417f428,ffff80002417f470) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff80002417f4f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002417f4f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf0c90905ba0, 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(ffffffff826aba68,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807f0008a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807f0008a0,fffffd80649d23c0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807f0008a0,fffffd80649d23c0,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff80002417f260,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff80002417f260) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec6eb8,ffff80002417f428,ffff80002417f470) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff80002417f4f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002417f4f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf0c90905ba0, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff80002417ece0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800023174000 rax 0xffff8000009d7980 r8 0xffffffff8212b2ff kprintf+0x16f r9 0x1 r10 0xffff80002417eb70 r11 0x7ff5d81fc812a7a3 r12 0x1 r13 0xfffffd8069eb7d28 r14 0xffff800020ec6eb8 r15 0x3 rip 0xffffffff81cb79c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002417ecd0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=151067 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec6768,0xffff800020ec69e8 process=0xffff800020e93360 user=0xffff80002417a000, vmspace=0xfffffd807f0008a0 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 7670 471832 78122 0 7 0 syz-executor.0 7670 464379 78122 0 2 0x4000000 syz-executor.0 9363 314023 92115 0 2 0 syz-executor.1 * 9363 151067 92115 0 7 0x4000000 syz-executor.1 92115 42704 15054 0 3 0x82 nanosleep syz-executor.1 10950 409688 0 0 3 0x14200 bored sosplice 78122 478569 15054 0 3 0x82 nanosleep syz-executor.0 15054 403367 7897 0 3 0x82 thrsleep syz-fuzzer 15054 423480 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 441496 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 464512 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 43065 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 214852 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 481744 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 313215 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 281279 7897 0 3 0x4000082 kqread syz-fuzzer 15054 311479 7897 0 3 0x4000082 thrsleep syz-fuzzer 15054 80120 7897 0 3 0x4000082 thrsleep syz-fuzzer 7897 172682 89821 0 3 0x10008a pause ksh 89821 148793 55354 0 3 0x92 select sshd 99106 301363 1 0 3 0x100083 ttyin getty 55354 93127 1 0 3 0x80 select sshd 90529 38499 3279 74 3 0x100092 bpf pflogd 3279 505407 1 0 3 0x80 netio pflogd 37072 355419 59105 73 3 0x100090 kqread syslogd 59105 230047 1 0 3 0x100082 netio syslogd 51182 5313 1 77 3 0x100090 poll dhclient 71688 326222 1 0 3 0x80 poll dhclient 14953 49475 0 0 3 0x14200 bored smr 48180 372193 0 0 2 0x14200 zerothread 96781 362967 0 0 3 0x14200 aiodoned aiodoned 46820 214061 0 0 3 0x14200 syncer update 49252 17693 0 0 3 0x14200 cleaner cleaner 55123 515825 0 0 3 0x14200 reaper reaper 63186 444489 0 0 3 0x14200 pgdaemon pagedaemon 20899 427014 0 0 3 0x14200 bored crynlk 26057 233673 0 0 3 0x14200 bored crypto 68922 160491 0 0 3 0x40014200 acpi0 acpi0 32096 270915 0 0 3 0x40014200 idle1 44305 100442 0 0 3 0x14200 bored softnet 32502 26902 0 0 3 0x14200 bored systqmp 80512 35067 0 0 3 0x14200 bored systq 67509 498927 0 0 3 0x40014200 bored softclock 46466 82512 0 0 3 0x40014200 idle0 1 133496 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 7670 (syz-executor.0) thread 0xffff800020ec6288 (464379) exclusive rwlock fdlock r = 0 (0xfffffd806ed67638) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 sys_socketpair+0x19d sys/kern/uipc_syscalls.c:451 #2 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #2 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #3 Xsyscall+0x128 Process 9363 (syz-executor.1) thread 0xffff800020ec6eb8 (151067) exclusive rwlock vmmaplk r = 0 (0xfffffd807f0008b8) #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 (0xffffffff82502378) #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 (0xffffffff826906e8) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9503 6410K 6795K 78643K 10948 0 pcb 13 8K 8K 78643K 67 0 rtable 114 4K 4K 78643K 337 0 ifaddr 64 13K 13K 78643K 97 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1487 0 iov 0 0K 16K 78643K 23 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1359 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 9 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 54 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 294 0 proc 61 63K 95K 78643K 557 0 subproc 32 2K 2K 78643K 68 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 37 2K 2K 78643K 85 0 ether_multi 1 0K 0K 78643K 11 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 255 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 126 39K 39K 78643K 1938 0 UVM aobj 18 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 50 0 NDP 10 0K 0K 78643K 23 0 temp 92 3038K 3104K 78643K 4260 0 kqueue 3 4K 12K 78643K 21 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 12 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 33 1 0 1 1 0 8 0 rtentry 112 76 0 29 2 0 2 2 0 8 0 unpcb 120 228 0 215 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 28 0 28 1 1 0 1 0 8 0 tcpcb 544 271 0 267 1 0 1 1 0 8 0 inpcb 280 453 0 445 2 1 1 2 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 14 0 7 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 0 1 0 1 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 40 0 7 1 0 1 1 0 8 0 pfstkey 112 40 0 7 1 0 1 1 0 8 0 pfstate 328 39 0 7 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 314 0 105 15 0 15 15 0 8 0 art_table 32 315 0 105 2 0 2 2 0 8 0 art_node 16 75 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semapl 112 52 0 42 1 0 1 1 0 8 0 shmpl 112 16 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1743 0 341 89 1 88 89 0 8 0 ffsino 272 1743 0 341 95 1 94 95 0 8 0 nchpl 144 2306 0 711 60 0 60 60 0 8 0 uvmvnodes 72 1900 0 0 35 0 35 35 0 8 0 vnodes 208 1900 0 0 100 0 100 100 0 8 0 namei 1024 6443 0 6443 5 4 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 2 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6340 0 6340 8 7 1 5 0 8 1 plimitpl 152 33 0 25 1 0 1 1 0 8 0 sigapl 424 504 0 471 4 0 4 4 0 8 0 futexpl 56 3776 0 3776 4 3 1 1 0 8 1 knotepl 112 115 0 96 1 0 1 1 0 8 0 kqueuepl 144 209 0 205 1 0 1 1 0 8 0 pipelkpl 48 107 0 97 1 0 1 1 0 8 0 pipepl 120 214 0 195 1 0 1 1 0 8 0 fdescpl 496 488 0 471 3 0 3 3 0 8 0 filepl 152 2898 0 2796 7 2 5 5 0 8 1 lockfpl 104 35 0 34 1 0 1 1 0 8 0 lockfspl 48 15 0 14 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 34 0 23 1 0 1 1 0 8 0 ucredpl 96 221 0 212 1 0 1 1 0 8 0 zombiepl 144 472 0 472 3 2 1 1 0 8 1 processpl 984 504 0 471 6 1 5 5 0 8 0 procpl 624 1069 0 1024 4 0 4 4 0 8 0 sosppl 128 3 0 3 1 1 0 1 0 8 0 sockpl 400 716 0 693 7 4 3 4 0 8 0 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 162 0 0 20 0 20 20 0 8 0 mtagpl 80 27 0 0 1 0 1 1 0 8 0 mbufpl 256 192 0 0 11 0 11 11 0 8 0 bufpl 280 3827 0 134 264 0 264 264 0 8 0 anonpl 16 72082 0 57838 88 26 62 77 0 124 0 amapchunkpl 152 2779 0 2644 8 1 7 8 0 158 0 amappl16 192 2521 0 1719 66 25 41 53 0 8 0 amappl15 184 20 0 19 1 0 1 1 0 8 0 amappl14 176 27 0 22 1 0 1 1 0 8 0 amappl13 168 285 0 278 1 0 1 1 0 8 0 amappl12 160 20 0 14 1 0 1 1 0 8 0 amappl11 152 77 0 61 1 0 1 1 0 8 0 amappl10 144 103 0 99 1 0 1 1 0 8 0 amappl9 136 383 0 382 1 0 1 1 0 8 0 amappl8 128 416 0 378 2 0 2 2 0 8 0 amappl7 120 133 0 118 1 0 1 1 0 8 0 amappl6 112 31 0 24 1 0 1 1 0 8 0 amappl5 104 270 0 251 1 0 1 1 0 8 0 amappl4 96 637 0 606 1 0 1 1 0 8 0 amappl3 88 227 0 220 1 0 1 1 0 8 0 amappl2 80 2841 0 2758 2 0 2 2 0 8 0 amappl1 72 21091 0 20642 23 12 11 18 0 8 0 amappl 80 1355 0 1309 3 1 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 17 0 0 1 0 1 1 0 8 0 uaddrrnd 24 491 0 473 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 491 0 473 1 0 1 1 0 8 0 vmmpekpl 168 7821 0 7790 2 0 2 2 0 8 0 vmmpepl 168 67867 0 65789 148 57 91 117 0 357 0 vmsppl 368 490 0 473 2 0 2 2 0 8 0 pdppl 4096 990 0 947 6 0 6 6 0 8 0 pvpl 32 211130 0 193692 204 56 148 183 0 265 0 pmappl 232 490 0 473 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 269 0 13 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(ffffffff82519ff0) 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 __mp_lock(ffffffff826904e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff826904e0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800024179aa0,ffff800000658e00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff826904e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff826904e0) 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: 0x7f7ffffce760, 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(ffffffff826aba68,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807f0008a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807f0008a0,fffffd80649d23c0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807f0008a0,fffffd80649d23c0,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff80002417f260,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff80002417f260) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec6eb8,ffff80002417f428,ffff80002417f470) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff80002417f4f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002417f4f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf0c90905ba0, count: -14