uvm_fault(fffffd807efff000,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff000,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023101830,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023101830) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e56288,ffff8000231019f8,ffff800023101a40) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023101ac0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023101ac0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb2c1c29660, 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(ffffffff828b6578,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff000,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff000,fffffd80685df8a8,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff000,fffffd80685df8a8,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff000,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff000,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023101830,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023101830) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e56288,ffff8000231019f8,ffff800023101a40) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023101ac0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023101ac0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb2c1c29660, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff8000231012b0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800021ee4000 rax 0xffff800000ad87c0 r8 0xffffffff821c2b4f kprintf+0x16f r9 0x1 r10 0x2 r11 0xcf3d5ff453416879 r12 0x1 r13 0xfffffd8066b01020 r14 0xffff800020e56288 r15 0x3 rip 0xffffffff811a3778 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000231012a0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=157091 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e56768,0xffffffff828ad340 process=0xffff800020e0c7d0 user=0xffff8000230fc000, vmspace=0xfffffd807efff000 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 67035 384452 42607 0 2 0 syz-executor.1 *67035 157091 42607 0 7 0x4000000 syz-executor.1 21012 143492 0 0 3 0x14200 bored sosplice 42607 428425 49514 0 3 0x82 nanosleep syz-executor.1 47428 72632 49514 0 3 0x82 piperd syz-executor.0 49514 461370 29787 0 3 0x82 thrsleep syz-fuzzer 49514 139822 29787 0 3 0x4000082 nanosleep syz-fuzzer 49514 215184 29787 0 3 0x4000082 thrsleep syz-fuzzer 49514 10657 29787 0 3 0x4000082 thrsleep syz-fuzzer 49514 362412 29787 0 7 0x4000002 syz-fuzzer 49514 380104 29787 0 3 0x4000082 kqread syz-fuzzer 49514 188992 29787 0 3 0x4000082 thrsleep syz-fuzzer 49514 455183 29787 0 3 0x4000082 thrsleep syz-fuzzer 49514 285464 29787 0 3 0x4000082 thrsleep syz-fuzzer 49514 241727 29787 0 3 0x4000082 thrsleep syz-fuzzer 29787 422508 84111 0 3 0x10008a pause ksh 84111 72177 16679 0 3 0x92 select sshd 28122 256533 1 0 3 0x100083 ttyin getty 16679 366957 1 0 3 0x80 select sshd 21954 373053 80695 74 3 0x100092 bpf pflogd 80695 503355 1 0 3 0x80 netio pflogd 58560 79410 13754 73 3 0x100090 kqread syslogd 13754 359787 1 0 3 0x100082 netio syslogd 1270 496506 1 77 3 0x100090 poll dhclient 22177 39110 1 0 3 0x80 poll dhclient 88823 260738 0 0 3 0x14200 bored smr 73889 216322 0 0 2 0x14200 zerothread 85343 324803 0 0 3 0x14200 aiodoned aiodoned 27875 500786 0 0 3 0x14200 syncer update 73220 38593 0 0 3 0x14200 cleaner cleaner 54464 489401 0 0 3 0x14200 reaper reaper 2908 239306 0 0 3 0x14200 pgdaemon pagedaemon 11256 399997 0 0 3 0x14200 bored crynlk 22673 491326 0 0 3 0x14200 bored crypto 98227 200982 0 0 3 0x40014200 acpi0 acpi0 59488 353797 0 0 3 0x40014200 idle1 77216 118538 0 0 3 0x14200 bored softnet 74081 308283 0 0 3 0x14200 bored systqmp 82306 24629 0 0 3 0x14200 bored systq 90234 160557 0 0 3 0x40014200 bored softclock 7855 348143 0 0 3 0x40014200 idle0 1 35539 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 67035 (syz-executor.1) thread 0xffff800020e56288 (157091) exclusive rwlock vmmaplk r = 0 (0xfffffd807efff018) #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 (0xffffffff82707e28) #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 (0xffffffff82899198) #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 9505 6412K 6915K 78643K 10971 0 pcb 13 8K 8K 78643K 51 0 rtable 112 6K 8K 78643K 321 0 ifaddr 64 13K 14K 78643K 115 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1515 0 iov 0 0K 24K 78643K 36 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 1340 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 29 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 269 0 sigio 0 0K 0K 78643K 2 0 proc 62 63K 95K 78643K 455 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 26 0 in_multi 36 2K 2K 78643K 69 0 ether_multi 1 0K 0K 78643K 5 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 219 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 124 39K 39K 78643K 1808 0 UVM aobj 7 2K 2K 78643K 9 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 30 0 NDP 10 0K 0K 78643K 21 0 temp 94 3848K 3913K 78643K 5843 0 kqueue 3 4K 12K 78643K 17 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 25 0 23 1 0 1 1 0 8 0 rtentry 112 51 0 10 2 0 2 2 0 8 0 unpcb 120 213 0 203 1 0 1 1 0 8 0 syncache 264 8 0 8 3 3 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 426 0 426 1 1 0 1 0 8 0 tcpcb 544 93 0 89 1 0 1 1 0 8 0 inpcb 280 585 0 575 3 2 1 2 0 8 0 nd6 48 9 0 5 1 0 1 1 0 8 0 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 47 0 46 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 pfrktable 1344 26 0 20 1 0 1 1 0 8 0 pfstitem 24 30 0 13 1 0 1 1 0 8 0 pfstkey 112 30 0 13 1 0 1 1 0 8 0 pfstate 328 30 0 13 2 0 2 2 0 8 0 pfrule 1360 32 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 212 0 40 13 0 13 13 0 8 0 art_table 32 213 0 40 2 0 2 2 0 8 0 art_node 16 50 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 27 0 17 1 0 1 1 0 8 0 shmpl 112 7 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1743 0 338 89 0 89 89 0 8 0 ffsino 272 1743 0 338 94 0 94 94 0 8 0 nchpl 144 2314 0 706 60 0 60 60 0 8 0 uvmvnodes 72 1874 0 0 35 0 35 35 0 8 0 vnodes 208 1874 0 0 99 0 99 99 0 8 0 namei 1024 6245 0 6245 4 3 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 11 0 4 1 0 1 1 0 8 0 scxspl 192 6835 0 6835 11 10 1 7 0 8 1 plimitpl 152 32 0 24 1 0 1 1 0 8 0 sigapl 424 485 0 453 4 0 4 4 0 8 0 futexpl 56 3814 0 3814 4 3 1 1 0 8 1 knotepl 112 77 0 58 1 0 1 1 0 8 0 kqueuepl 144 48 0 46 1 0 1 1 0 8 0 pipelkpl 48 117 0 107 1 0 1 1 0 8 0 pipepl 120 234 0 215 1 0 1 1 0 8 0 fdescpl 496 469 0 453 3 0 3 3 0 8 0 filepl 152 2815 0 2712 7 2 5 5 0 8 1 lockfpl 104 66 0 65 1 0 1 1 0 8 0 lockfspl 48 21 0 20 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 96 227 0 218 1 0 1 1 0 8 0 zombiepl 144 460 0 460 3 2 1 1 0 8 1 processpl 984 485 0 453 5 0 5 5 0 8 0 procpl 624 1027 0 985 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 1 0 1 1 1 0 1 0 8 0 sockpl 400 823 0 801 7 4 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 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 172 0 0 21 0 21 21 0 8 0 mtagpl 80 17 0 0 1 0 1 1 0 8 0 mbufpl 256 248 0 0 14 0 14 14 0 8 0 bufpl 280 3856 0 133 266 0 266 266 0 8 0 anonpl 16 58677 0 42215 76 9 67 74 0 124 0 amapchunkpl 152 2521 0 2361 9 0 9 9 0 158 0 amappl16 192 2227 0 1354 50 6 44 49 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl13 168 265 0 259 1 0 1 1 0 8 0 amappl12 160 12 0 9 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 39 0 31 1 0 1 1 0 8 0 amappl9 136 385 0 384 1 0 1 1 0 8 0 amappl8 128 360 0 320 2 0 2 2 0 8 0 amappl7 120 118 0 107 1 0 1 1 0 8 0 amappl6 112 27 0 22 1 0 1 1 0 8 0 amappl5 104 372 0 355 1 0 1 1 0 8 0 amappl4 96 730 0 698 1 0 1 1 0 8 0 amappl3 88 110 0 104 1 0 1 1 0 8 0 amappl2 80 2805 0 2736 2 0 2 2 0 8 0 amappl1 72 19780 0 19337 23 13 10 18 0 8 0 amappl 80 1284 0 1238 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 8 0 2 1 0 1 1 0 8 0 uaddrrnd 24 477 0 457 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 477 0 457 1 0 1 1 0 8 0 vmmpekpl 168 7712 0 7682 2 0 2 2 0 8 0 vmmpepl 168 63839 0 61791 121 29 92 116 0 357 0 vmsppl 368 476 0 457 2 0 2 2 0 8 0 pdppl 4096 961 0 918 7 1 6 6 0 8 0 pvpl 32 187331 0 167734 181 21 160 174 0 265 1 pmappl 232 476 0 457 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 268 0 11 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(ffffffff82711ff0) 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(ffffffff82898f90) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82898f90) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800020ea30c0,ffff80000065ad80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff82898f90) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82898f90) 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: 0xc002472c10, 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(ffffffff828b6578,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff000,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff000,fffffd80685df8a8,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff000,fffffd80685df8a8,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff000,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff000,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023101830,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023101830) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e56288,ffff8000231019f8,ffff800023101a40) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023101ac0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023101ac0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb2c1c29660, count: -14