uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f7f7f0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f7f7f0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec69d8,ffff800021f7f9b8,ffff800021f7fa00) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f7fa80) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f7fa80) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x40fe199ec30, count: 243 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> 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(ffffffff82640480,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff8a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff8a0,fffffd8068cbfa80,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff8a0,fffffd8068cbfa80,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f7f7f0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f7f7f0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec69d8,ffff800021f7f9b8,ffff800021f7fa00) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f7fa80) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f7fa80) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x40fe199ec30, count: -14 ddb{0}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800021f7f270 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800020f6c000 rax 0xffff800000a1c000 r8 0xffffffff816a48af kprintf+0x16f r9 0x1 r10 0x2 r11 0x389f05339a65b467 r12 0x1 r13 0xfffffd8068cb3108 r14 0xffff800020ec69d8 r15 0x3 rip 0xffffffff81a150c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021f7f260 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=18929 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=65, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec64f8,0xffffffff826879a0 process=0xffff800020e93730 user=0xffff800021f7a000, vmspace=0xfffffd807efff8a0 estcpu=15, cpticks=3, pctcpu=0.12 user=0, sys=15, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 7973 159361 4456 0 2 0 syz-executor.1 47555 335963 6891 0 2 0 syz-executor.0 *47555 18929 6891 0 7 0x4000000 syz-executor.0 94946 472326 0 0 3 0x14200 acct acct 47294 174906 0 0 3 0x14200 bored sosplice 4456 23185 87588 0 2 0x482 syz-executor.1 6891 110328 87588 0 2 0x482 syz-executor.0 87588 339288 57801 0 3 0x82 thrsleep syz-fuzzer 87588 508163 57801 0 2 0x4000482 syz-fuzzer 87588 156252 57801 0 3 0x4000082 thrsleep syz-fuzzer 87588 507338 57801 0 3 0x4000082 kqread syz-fuzzer 87588 430176 57801 0 3 0x4000082 thrsleep syz-fuzzer 87588 178226 57801 0 3 0x4000082 thrsleep syz-fuzzer 87588 282458 57801 0 3 0x4000082 thrsleep syz-fuzzer 87588 189878 57801 0 3 0x4000082 thrsleep syz-fuzzer 87588 169171 57801 0 3 0x4000082 thrsleep syz-fuzzer 87588 80738 57801 0 7 0x4000482 syz-fuzzer 57801 129460 1060 0 3 0x10008a pause ksh 1060 298431 86308 0 3 0x92 select sshd 31299 68664 1 0 3 0x100083 ttyopn getty 86308 192653 1 0 3 0x80 select sshd 49107 218749 39625 74 2 0x100492 pflogd 39625 195063 1 0 3 0x80 netio pflogd 79308 142221 86343 73 2 0x100090 syslogd 86343 282273 1 0 3 0x100082 netio syslogd 55363 491879 1 77 3 0x100090 poll dhclient 55675 401467 1 0 3 0x80 poll dhclient 74495 374010 0 0 3 0x14200 bored smr 96989 157739 0 0 2 0x14200 zerothread 64487 178101 0 0 3 0x14200 aiodoned aiodoned 88623 31894 0 0 2 0x14200 update 55478 117367 0 0 3 0x14200 cleaner cleaner 17642 357924 0 0 3 0x14200 reaper reaper 5551 130501 0 0 3 0x14200 pgdaemon pagedaemon 9240 295243 0 0 3 0x14200 bored crynlk 122 399347 0 0 3 0x14200 bored crypto 77070 96954 0 0 3 0x40014200 acpi0 acpi0 70504 57472 0 0 3 0x40014200 idle1 57720 412880 0 0 2 0x14200 softnet 39943 404225 0 0 2 0x14200 systqmp 31421 40346 0 0 3 0x14200 bored systq 55393 111037 0 0 2 0x40014200 softclock 11321 130234 0 0 3 0x40014200 idle0 1 517932 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 47555 (syz-executor.0) thread 0xffff800020ec69d8 (18929) exclusive rwlock vmmaplk r = 0 (0xfffffd807efff8b8) #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 (0xffffffff825086d8) #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 (0xffffffff82643ee0) #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9506 6406K 6797K 78643K 10898 0 pcb 13 8K 8K 78643K 71 0 rtable 112 12K 13K 78643K 290 0 ifaddr 67 14K 14K 78643K 97 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1483 0 iov 0 0K 16K 78643K 30 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1317 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 1K 78643K 16 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 285 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 95K 78643K 464 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 9 0 in_multi 53 3K 3K 78643K 68 0 ether_multi 1 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 229 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 115 38K 38K 78643K 1844 0 UVM aobj 16 2K 2K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 51 0 NDP 10 0K 0K 78643K 19 0 temp 95 3035K 3099K 78643K 8452 0 kqueue 3 4K 16K 78643K 18 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 arp 64 8 0 2 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 49 0 6 2 0 2 2 0 8 0 unpcb 120 152 0 142 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 108 0 104 1 0 1 1 0 8 0 inpcb 280 329 0 321 2 1 1 2 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 1 0 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 98 0 98 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 45 0 3 1 0 1 1 0 8 0 pfstkey 112 45 0 3 2 0 2 2 0 8 0 pfstate 328 45 0 3 4 0 4 4 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 256 190 0 3 12 0 12 12 0 8 0 art_table 32 191 0 3 2 0 2 2 0 8 0 art_node 16 48 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 18 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 14 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1835 0 430 89 0 89 89 0 8 0 ffsino 272 1835 0 430 95 0 95 95 0 8 0 nchpl 144 2505 0 896 60 0 60 60 0 8 0 uvmvnodes 72 1942 0 0 36 0 36 36 0 8 0 vnodes 208 1942 0 0 103 0 103 103 0 8 0 namei 1024 6844 0 6844 2 1 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 scxspl 192 7297 0 7297 9 8 1 7 0 8 1 plimitpl 152 23 0 15 1 0 1 1 0 8 0 sigapl 424 502 0 468 4 0 4 4 0 8 0 futexpl 56 3836 0 3836 2 1 1 1 0 8 1 knotepl 112 79 0 60 1 0 1 1 0 8 0 kqueuepl 144 49 0 47 1 0 1 1 0 8 0 pipelkpl 48 99 0 89 1 0 1 1 0 8 0 pipepl 120 198 0 179 1 0 1 1 0 8 0 fdescpl 496 485 0 468 3 0 3 3 0 8 0 filepl 152 2961 0 2860 6 1 5 5 0 8 1 lockfpl 104 319 0 318 1 0 1 1 0 8 0 lockfspl 48 101 0 100 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 224 0 215 1 0 1 1 0 8 0 zombiepl 144 476 0 476 2 1 1 1 0 8 1 processpl 984 502 0 468 5 0 5 5 0 8 0 procpl 624 1069 0 1025 4 0 4 4 0 8 0 sosppl 128 9 0 9 1 1 0 1 0 8 0 sockpl 400 516 0 496 4 1 3 3 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 234 0 0 29 0 29 29 0 8 0 mtagpl 80 20 0 0 1 0 1 1 0 8 0 mbufpl 256 293 0 0 17 0 17 17 0 8 0 bufpl 280 4060 0 133 281 0 281 281 0 8 0 anonpl 16 61177 0 46343 76 15 61 75 0 124 0 amapchunkpl 152 2577 0 2443 12 5 7 11 0 158 0 amappl16 192 2192 0 1384 52 11 41 52 0 8 0 amappl15 184 4 0 2 1 0 1 1 0 8 0 amappl14 176 152 0 145 1 0 1 1 0 8 0 amappl13 168 36 0 32 1 0 1 1 0 8 0 amappl12 160 132 0 129 2 1 1 1 0 8 0 amappl11 152 52 0 37 1 0 1 1 0 8 0 amappl10 144 142 0 136 1 0 1 1 0 8 0 amappl9 136 377 0 376 1 0 1 1 0 8 0 amappl8 128 340 0 315 1 0 1 1 0 8 0 amappl7 120 241 0 229 1 0 1 1 0 8 0 amappl6 112 34 0 24 1 0 1 1 0 8 0 amappl5 104 275 0 258 1 0 1 1 0 8 0 amappl4 96 624 0 591 1 0 1 1 0 8 0 amappl3 88 240 0 233 1 0 1 1 0 8 0 amappl2 80 2942 0 2865 2 0 2 2 0 8 0 amappl1 72 19958 0 19511 23 13 10 18 0 8 0 amappl 80 1325 0 1281 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 15 0 0 1 0 1 1 0 8 0 uaddrrnd 24 488 0 470 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 488 0 470 1 0 1 1 0 8 0 vmmpekpl 168 7399 0 7366 2 0 2 2 0 8 0 vmmpepl 168 64978 0 62938 108 17 91 103 0 357 2 vmsppl 368 487 0 470 2 0 2 2 0 8 0 pdppl 4096 984 0 941 6 0 6 6 0 8 0 pvpl 32 193272 0 175230 181 34 147 181 0 265 0 pmappl 232 487 0 470 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 273 0 5 8 0 8 8 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:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff82640480,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff8a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff8a0,fffffd8068cbfa80,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff8a0,fffffd8068cbfa80,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f7f7f0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f7f7f0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec69d8,ffff800021f7f9b8,ffff800021f7fa00) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f7fa80) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f7fa80) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x40fe199ec30, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020e00ff0) 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(ffffffff82643cd8) at __mp_lock+0x125 __mp_lock_spin sys/kern/kern_lock.c:117 [inline] __mp_lock(ffffffff82643cd8) at __mp_lock+0x125 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82643cd8,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020f3cf00,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020f3cf00,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020f3cf00,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff82616d90,120,ffffffff821ef68b,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020e6c008,ffff800020f3d030,ffff800020f3d080) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020f3d100) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f3d100) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc000077e40, count: -12