uvm_fault(fffffd807efff2e0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff2e0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f8ae20,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f8ae20) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec7128,ffff800021f8afe8,ffff800021f8b030) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f8b0b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f8b0b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a86f0dd0c0, 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(ffffffff8265aa30,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff2e0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff2e0,fffffd80689e3e70,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff2e0,fffffd80689e3e70,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff2e0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff2e0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f8ae20,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f8ae20) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec7128,ffff800021f8afe8,ffff800021f8b030) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f8b0b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f8b0b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a86f0dd0c0, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800021f8a8a0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800020f7a000 rax 0xffff800000a1c040 r8 0xffffffff8128b6ef kprintf+0x16f r9 0x1 r10 0xffff800021f8a730 r11 0x219cc9ee080b5f2f r12 0x1 r13 0xfffffd80689e4e40 r14 0xffff800020ec7128 r15 0x3 rip 0xffffffff81c7edf8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021f8a890 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=142035 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec6768,0xffffffff82647678 process=0xffff800020e927d0 user=0xffff800021f86000, vmspace=0xfffffd807efff2e0 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26454 60442 5119 0 7 0x1 syz-executor.0 *26454 142035 5119 0 7 0x4000000 syz-executor.0 35105 51837 54819 0 2 0 syz-executor.1 35105 73082 54819 0 3 0x4000080 netio syz-executor.1 35105 485671 54819 0 2 0x4000000 syz-executor.1 89266 353596 0 0 3 0x14200 acct acct 54819 324781 55170 0 3 0x82 nanosleep syz-executor.1 5119 441586 55170 0 3 0x82 nanosleep syz-executor.0 55170 302031 93482 0 3 0x82 thrsleep syz-fuzzer 55170 81825 93482 0 3 0x4000082 nanosleep syz-fuzzer 55170 471803 93482 0 3 0x4000082 nanosleep syz-fuzzer 55170 48195 93482 0 3 0x4000082 thrsleep syz-fuzzer 55170 308668 93482 0 3 0x4000082 thrsleep syz-fuzzer 55170 106113 93482 0 3 0x4000082 thrsleep syz-fuzzer 55170 424373 93482 0 3 0x4000082 thrsleep syz-fuzzer 55170 119185 93482 0 3 0x4000082 kqread syz-fuzzer 55170 59154 93482 0 3 0x4000082 thrsleep syz-fuzzer 55170 273244 93482 0 3 0x4000082 thrsleep syz-fuzzer 93482 354796 46011 0 3 0x10008a pause ksh 46011 504893 32789 0 3 0x92 select sshd 72414 87662 1 0 3 0x100083 ttyin getty 32789 468015 1 0 3 0x80 select sshd 95000 435980 37156 74 3 0x100092 bpf pflogd 37156 41077 1 0 3 0x80 netio pflogd 68434 26704 81400 73 3 0x100090 kqread syslogd 81400 299408 1 0 3 0x100082 netio syslogd 59716 473402 1 77 3 0x100090 poll dhclient 18385 332599 1 0 3 0x80 poll dhclient 23991 71139 0 0 3 0x14200 bored smr 91927 126621 0 0 3 0x14200 pgzero zerothread 14773 190957 0 0 3 0x14200 aiodoned aiodoned 52901 257632 0 0 3 0x14200 syncer update 38701 350542 0 0 3 0x14200 cleaner cleaner 80183 295303 0 0 3 0x14200 reaper reaper 85640 152573 0 0 3 0x14200 pgdaemon pagedaemon 65032 506037 0 0 3 0x14200 bored crynlk 51273 218144 0 0 3 0x14200 bored crypto 5846 38892 0 0 3 0x40014200 acpi0 acpi0 20442 986 0 0 3 0x40014200 idle1 74601 336301 0 0 3 0x14200 bored softnet 2323 68442 0 0 3 0x14200 bored systqmp 74643 189509 0 0 3 0x14200 bored systq 84285 374553 0 0 3 0x40014200 bored softclock 14273 271615 0 0 3 0x40014200 idle0 1 293066 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 26454 (syz-executor.0) thread 0xffff800020ec7128 (142035) exclusive rwlock vmmaplk r = 0 (0xfffffd807efff2f8) #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 (0xffffffff824f9028) #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 (0xffffffff8265a808) #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 9501 6409K 6668K 78643K 10748 0 pcb 13 8K 8K 78643K 33 0 rtable 89 4K 5K 78643K 269 0 ifaddr 58 12K 13K 78643K 100 0 sysctl 1 1K 1K 78643K 1 0 counters 43 33K 34K 78643K 59 0 ioctlops 0 0K 4K 78643K 1472 0 iov 0 0K 16K 78643K 161 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 77K 78643K 1277 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 28 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 135 0 proc 60 63K 95K 78643K 443 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 4 0 in_multi 22 1K 2K 78643K 37 0 ether_multi 1 0K 0K 78643K 3 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 227 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 22K 22K 78643K 1367 0 UVM aobj 5 2K 3K 78643K 11 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 21 0 NDP 10 0K 0K 78643K 22 0 temp 91 3033K 3101K 78643K 4373 0 kqueue 3 4K 8K 78643K 5 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 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 12 2 0 2 2 0 8 0 unpcb 120 110 0 97 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 54 0 50 1 0 1 1 0 8 0 inpcb 280 160 0 152 2 1 1 2 0 8 0 nd6 48 6 0 3 1 0 1 1 0 8 0 ppxss 1128 2 0 2 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 24 0 4 1 0 1 1 0 8 0 pfstkey 112 24 0 4 1 0 1 1 0 8 0 pfstate 328 24 0 4 2 0 2 2 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 256 188 0 44 12 1 11 12 0 8 0 art_table 32 189 0 44 2 0 2 2 0 8 0 art_node 16 44 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 9 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1598 0 194 89 1 88 89 0 8 0 ffsino 272 1598 0 194 94 0 94 94 0 8 0 nchpl 144 2026 0 414 60 0 60 60 0 8 0 uvmvnodes 72 1669 0 0 31 0 31 31 0 8 0 vnodes 208 1669 0 0 88 0 88 88 0 8 0 namei 1024 5336 0 5336 2 1 1 1 0 8 1 percpumem 16 40 0 8 1 0 1 1 0 8 0 scxspl 192 5302 0 5302 8 7 1 7 0 8 1 plimitpl 152 24 0 16 1 0 1 1 0 8 0 sigapl 424 351 0 318 4 0 4 4 0 8 0 futexpl 56 1621 0 1621 2 1 1 1 0 8 1 knotepl 112 63 0 44 1 0 1 1 0 8 0 kqueuepl 144 12 0 10 1 0 1 1 0 8 0 pipelkpl 48 95 0 85 1 0 1 1 0 8 0 pipepl 120 190 0 171 1 0 1 1 0 8 0 fdescpl 496 335 0 318 3 0 3 3 0 8 0 filepl 152 1879 0 1773 5 0 5 5 0 8 0 lockfpl 104 26 0 25 1 0 1 1 0 8 0 lockfspl 48 13 0 12 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 155 0 146 1 0 1 1 0 8 0 zombiepl 144 318 0 318 2 1 1 1 0 8 1 processpl 984 351 0 318 5 0 5 5 0 8 0 procpl 624 605 0 560 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sockpl 400 289 0 266 4 1 3 4 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 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 165 0 0 20 0 20 20 0 8 0 mtagpl 80 6 0 0 1 0 1 1 0 8 0 mbufpl 256 176 0 0 11 0 11 11 0 8 0 bufpl 280 3572 0 135 246 0 246 246 0 8 0 anonpl 16 44678 0 29425 64 1 63 63 0 124 0 amapchunkpl 152 1661 0 1496 9 1 8 9 0 158 0 amappl16 192 1333 0 530 42 1 41 42 0 8 0 amappl15 184 3 0 2 2 1 1 1 0 8 0 amappl14 176 79 0 72 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 60 0 57 2 1 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 75 0 69 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 337 0 313 1 0 1 1 0 8 0 amappl7 120 116 0 105 1 0 1 1 0 8 0 amappl6 112 29 0 24 1 0 1 1 0 8 0 amappl5 104 180 0 162 1 0 1 1 0 8 0 amappl4 96 544 0 511 1 0 1 1 0 8 0 amappl3 88 157 0 149 1 0 1 1 0 8 0 amappl2 80 1736 0 1656 2 0 2 2 0 8 0 amappl1 72 17124 0 16672 23 13 10 18 0 8 0 amappl 80 855 0 806 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 10 0 6 1 0 1 1 0 8 0 uaddrrnd 24 335 0 318 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 335 0 318 1 0 1 1 0 8 0 vmmpekpl 168 6657 0 6626 2 0 2 2 0 8 0 vmmpepl 168 47401 0 45351 111 21 90 108 0 357 0 vmsppl 368 334 0 318 2 0 2 2 0 8 0 pdppl 4096 678 0 636 6 0 6 6 0 8 0 pvpl 32 155953 0 137393 160 9 151 157 0 265 0 pmappl 232 334 0 318 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 257 0 7 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(ffffffff824d6ff0) 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(ffffffff8265a600) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8265a600) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800021f7f140,ffff800000658e00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff8265a600) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8265a600) 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 __mp_lock(ffffffff8265a600) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8265a600) at __mp_lock+0x127 sys/kern/kern_lock.c:147 ktrstruct(ffff800020ec6018,ffffffff821f0718,ffff800021f7f478,10) at ktrstruct+0xee sys_clock_gettime(ffff800020ec6018,ffff800021f7f4e0,ffff800021f7f530) at sys_clock_gettime+0xfb sys/kern/kern_time.c:171 syscall(ffff800021f7f5b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f7f5b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc39e0, count: -14 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(ffffffff8265aa30,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff2e0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff2e0,fffffd80689e3e70,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff2e0,fffffd80689e3e70,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff2e0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff2e0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f8ae20,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f8ae20) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec7128,ffff800021f8afe8,ffff800021f8b030) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f8b0b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f8b0b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a86f0dd0c0, count: -14