uvm_fault(fffffd807efff5c0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff5c0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800020f652a0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800020f652a0) 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,ffff800020f65468,ffff800020f654b0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800020f65530) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f65530) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1fe4d005610, 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(fffffd807efff5c0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff5c0,fffffd80671ed188,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff5c0,fffffd80671ed188,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff5c0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff5c0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800020f652a0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800020f652a0) 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,ffff800020f65468,ffff800020f654b0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800020f65530) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f65530) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1fe4d005610, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800020f64d20 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800020f6e000 rax 0xffff800000a1c2c0 r8 0xffffffff81e4dd8f kprintf+0x16f r9 0x1 r10 0x2 r11 0x690df48a88a5d188 r12 0x1 r13 0xfffffd8068d3e558 r14 0xffff800020ec69d8 r15 0x3 rip 0xffffffff81d22ca8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020f64d10 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=420910 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec6768,0xffffffff826b9bd0 process=0xffff800020e93b18 user=0xffff800020f60000, vmspace=0xfffffd807efff5c0 estcpu=36, cpticks=16, pctcpu=0.0 user=0, sys=16, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 78726 479582 27055 0 2 0 syz-executor.0 *78726 420910 27055 0 7 0x4000000 syz-executor.0 44111 439584 0 0 3 0x14200 acct acct 55175 204469 66519 0 3 0x82 piperd syz-executor.1 27055 47785 66519 0 3 0x82 nanosleep syz-executor.0 66519 404753 1168 0 7 0x2 syz-fuzzer 66519 488922 1168 0 3 0x4000082 nanosleep syz-fuzzer 66519 56768 1168 0 3 0x4000082 thrsleep syz-fuzzer 66519 357956 1168 0 3 0x4000082 thrsleep syz-fuzzer 66519 286780 1168 0 3 0x4000082 thrsleep syz-fuzzer 66519 320893 1168 0 3 0x4000082 kqread syz-fuzzer 66519 470138 1168 0 3 0x4000082 thrsleep syz-fuzzer 66519 51227 1168 0 3 0x4000082 thrsleep syz-fuzzer 66519 252051 1168 0 3 0x4000082 thrsleep syz-fuzzer 66519 13599 1168 0 3 0x4000082 thrsleep syz-fuzzer 1168 23088 44432 0 3 0x10008a pause ksh 44432 499344 77709 0 3 0x92 select sshd 63196 40265 1 0 3 0x100083 ttyin getty 77709 379782 1 0 3 0x80 select sshd 4094 343075 6178 74 3 0x100092 bpf pflogd 6178 11604 1 0 3 0x80 netio pflogd 24320 307791 98884 73 3 0x100090 kqread syslogd 98884 118766 1 0 3 0x100082 netio syslogd 42731 329680 1 77 3 0x100090 poll dhclient 70232 314793 1 0 3 0x80 poll dhclient 54931 434150 0 0 3 0x14200 bored smr 87477 121607 0 0 3 0x14200 pgzero zerothread 79342 367072 0 0 3 0x14200 aiodoned aiodoned 56368 84940 0 0 3 0x14200 syncer update 19510 464846 0 0 3 0x14200 cleaner cleaner 26160 496071 0 0 3 0x14200 reaper reaper 86106 66237 0 0 3 0x14200 pgdaemon pagedaemon 94658 22225 0 0 3 0x14200 bored crynlk 19475 235466 0 0 3 0x14200 bored crypto 62148 200824 0 0 3 0x40014200 acpi0 acpi0 25486 182737 0 0 3 0x40014200 idle1 4890 293583 0 0 3 0x14200 bored softnet 76356 23465 0 0 3 0x14200 bored systqmp 23669 390242 0 0 3 0x14200 bored systq 39697 158246 0 0 3 0x40014200 bored softclock 47018 137995 0 0 3 0x40014200 idle0 1 144373 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 78726 (syz-executor.0) thread 0xffff800020ec69d8 (420910) exclusive rwlock vmmaplk r = 0 (0xfffffd807efff5d8) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9489 6404K 6921K 78643K 11085 0 pcb 13 8K 8K 78643K 35 0 rtable 107 3K 3K 78643K 264 0 ifaddr 60 13K 14K 78643K 101 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 59 0 ioctlops 0 0K 4K 78643K 1477 0 iov 0 0K 12K 78643K 7 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1355 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 1K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 220 0 proc 62 63K 83K 78643K 473 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 18 0 in_multi 53 3K 3K 78643K 68 0 ether_multi 1 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 222 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 116 38K 42K 78643K 1693 0 UVM aobj 16 6K 6K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 20 0 NDP 8 0K 0K 78643K 20 0 temp 83 3033K 3097K 78643K 8173 0 kqueue 3 4K 12K 78643K 22 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 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 46 0 1 2 0 2 2 0 8 0 unpcb 120 187 0 177 1 0 1 1 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 53 0 53 1 1 0 1 0 8 0 tcpcb 544 67 0 63 1 0 1 1 0 8 0 inpcb 280 335 0 327 4 3 1 2 0 8 0 nd6 48 7 0 0 1 0 1 1 0 8 0 pfstscr 40 1 0 0 1 0 1 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 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 27 0 22 1 0 1 1 0 8 0 pfstkey 112 27 0 22 1 0 1 1 0 8 0 pfstate 328 26 0 22 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 256 218 0 0 14 0 14 14 0 8 0 art_table 32 219 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 2 2 0 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 12 0 2 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 1706 0 299 89 0 89 89 0 8 0 ffsino 272 1706 0 299 95 0 95 95 0 8 1 nchpl 144 2195 0 587 60 0 60 60 0 8 0 uvmvnodes 72 1851 0 0 34 0 34 34 0 8 0 vnodes 208 1851 0 0 98 0 98 98 0 8 0 namei 1024 5896 0 5896 4 3 1 1 0 8 1 percpumem 16 40 0 8 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 scxspl 192 5913 0 5913 11 10 1 7 0 8 1 plimitpl 152 31 0 23 1 0 1 1 0 8 0 sigapl 424 436 0 404 4 0 4 4 0 8 0 futexpl 56 3564 0 3564 4 3 1 1 0 8 1 knotepl 112 86 0 67 1 0 1 1 0 8 0 kqueuepl 144 30 0 28 1 0 1 1 0 8 0 pipelkpl 48 175 0 165 1 0 1 1 0 8 0 pipepl 120 350 0 331 1 0 1 1 0 8 0 fdescpl 496 420 0 404 3 0 3 3 0 8 0 filepl 152 2523 0 2422 7 2 5 5 0 8 1 lockfpl 104 116 0 115 1 0 1 1 0 8 0 lockfspl 48 55 0 54 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 96 236 0 227 1 0 1 1 0 8 0 zombiepl 144 414 0 414 2 1 1 1 0 8 1 processpl 984 436 0 404 7 2 5 5 0 8 0 procpl 624 913 0 871 4 0 4 4 0 8 0 sockpl 400 563 0 543 7 4 3 4 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 159 0 0 19 0 19 19 0 8 0 mtagpl 80 57 0 0 2 0 2 2 0 8 0 mbufpl 256 439 0 0 26 0 26 26 0 8 0 bufpl 280 5686 0 133 397 0 397 397 0 8 0 anonpl 16 63641 0 48891 101 39 62 76 0 124 0 amapchunkpl 152 2289 0 2159 8 1 7 8 0 158 0 amappl16 192 2531 0 1728 74 33 41 53 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 213 0 206 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 35 0 31 1 0 1 1 0 8 0 amappl11 152 57 0 41 1 0 1 1 0 8 0 amappl10 144 16 0 13 1 0 1 1 0 8 0 amappl9 136 396 0 394 1 0 1 1 0 8 0 amappl8 128 326 0 302 1 0 1 1 0 8 0 amappl7 120 119 0 106 1 0 1 1 0 8 0 amappl6 112 24 0 21 1 0 1 1 0 8 0 amappl5 104 313 0 297 1 0 1 1 0 8 0 amappl4 96 489 0 462 1 0 1 1 0 8 0 amappl3 88 269 0 259 1 0 1 1 0 8 0 amappl2 80 2416 0 2344 2 0 2 2 0 8 0 amappl1 72 19089 0 18650 23 13 10 18 0 8 0 amappl 80 1163 0 1121 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 24 422 0 404 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 422 0 404 1 0 1 1 0 8 0 vmmpekpl 168 7619 0 7588 2 0 2 2 0 8 0 vmmpepl 168 58593 0 56647 127 40 87 107 0 357 0 vmsppl 368 421 0 404 2 0 2 2 0 8 0 pdppl 4096 852 0 810 6 0 6 6 0 8 0 pvpl 32 191869 0 174005 218 70 148 182 0 265 0 pmappl 232 421 0 404 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 280 0 10 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(8e2a9,8e2aa) at __sanitizer_cov_trace_cmp4+0x11 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(8e2a9,8e2aa) at __sanitizer_cov_trace_cmp4+0x11 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(8e2a9,8e2aa) at __sanitizer_cov_trace_cmp4+0x11 sys/dev/kcov.c:135 __mp_lock(ffffffff82693fb0) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82693fb0) at __mp_lock+0x139 sys/kern/kern_lock.c:147 intr_handler(ffff800020f13770,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: 0xc000460c58, count: -10 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(fffffd807efff5c0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff5c0,fffffd80671ed188,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff5c0,fffffd80671ed188,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff5c0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff5c0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800020f652a0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800020f652a0) 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,ffff800020f65468,ffff800020f654b0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800020f65530) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f65530) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1fe4d005610, count: -14