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(ffff80002411f150,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff80002411f150) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e18288,ffff80002411f318,ffff80002411f360) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff80002411f3e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002411f3e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8a6ab02d500, 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(ffffffff82897bd8,1) 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,fffffd80080dae38,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff5c0,fffffd80080dae38,2,1,20000000,20000001) 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(ffff80002411f150,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff80002411f150) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e18288,ffff80002411f318,ffff80002411f360) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff80002411f3e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002411f3e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8a6ab02d500, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff80002411ebd0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002311a000 rax 0xffff800000ad8640 r8 0xffffffff812f44df kprintf+0x16f r9 0x1 r10 0x2 r11 0xff673775c3fc7344 r12 0x1 r13 0xfffffd8066b88468 r14 0xffff800020e18288 r15 0x3 rip 0xffffffff81db78a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002411ebc0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=260130 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e19128,0xffffffff82895520 process=0xffff800020e33b10 user=0xffff80002411a000, vmspace=0xfffffd807efff5c0 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15793 39845 17046 0 2 0 syz-executor.1 *15793 260130 17046 0 7 0x4000000 syz-executor.1 77324 117594 23583 0 7 0 syz-executor.0 77324 263400 23583 0 3 0x4000080 kqread syz-executor.0 29470 353127 0 0 3 0x14200 bored sosplice 17046 164465 6406 0 3 0x82 nanosleep syz-executor.1 23583 425077 6406 0 3 0x82 nanosleep syz-executor.0 6406 267063 33558 0 3 0x82 thrsleep syz-fuzzer 6406 80564 33558 0 3 0x4000082 nanosleep syz-fuzzer 6406 376159 33558 0 3 0x4000082 thrsleep syz-fuzzer 6406 101142 33558 0 3 0x4000082 kqread syz-fuzzer 6406 454491 33558 0 3 0x4000082 thrsleep syz-fuzzer 6406 241032 33558 0 3 0x4000082 thrsleep syz-fuzzer 6406 454228 33558 0 3 0x4000082 thrsleep syz-fuzzer 6406 176696 33558 0 3 0x4000082 thrsleep syz-fuzzer 6406 5405 33558 0 3 0x4000082 thrsleep syz-fuzzer 6406 87684 33558 0 3 0x4000082 nanosleep syz-fuzzer 33558 346261 25313 0 3 0x10008a pause ksh 25313 317434 19622 0 3 0x92 select sshd 82951 457564 1 0 3 0x100083 ttyin getty 19622 64887 1 0 3 0x80 select sshd 51848 91391 82688 74 3 0x100092 bpf pflogd 82688 282033 1 0 3 0x80 netio pflogd 89736 145673 57576 73 3 0x100090 kqread syslogd 57576 458661 1 0 3 0x100082 netio syslogd 69149 290227 1 77 3 0x100090 poll dhclient 67726 326147 1 0 3 0x80 poll dhclient 9073 29693 0 0 3 0x14200 bored smr 61812 505355 0 0 2 0x14200 zerothread 93211 506489 0 0 3 0x14200 aiodoned aiodoned 19949 200385 0 0 3 0x14200 syncer update 77359 25934 0 0 3 0x14200 cleaner cleaner 6900 459507 0 0 3 0x14200 reaper reaper 39687 27571 0 0 3 0x14200 pgdaemon pagedaemon 67433 78115 0 0 3 0x14200 bored crynlk 81358 322575 0 0 3 0x14200 bored crypto 35814 394207 0 0 3 0x40014200 acpi0 acpi0 78110 269211 0 0 3 0x40014200 idle1 34122 240601 0 0 3 0x14200 bored softnet 53508 146820 0 0 3 0x14200 bored systqmp 2422 340485 0 0 3 0x14200 bored systq 12065 73170 0 0 3 0x40014200 bored softclock 47469 83739 0 0 3 0x40014200 idle0 1 242352 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 15793 (syz-executor.1) thread 0xffff800020e18288 (260130) 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 (0xffffffff82704128) #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 (0xffffffff828f7158) #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 9492 6531K 7045K 78643K 10846 0 pcb 13 8K 8K 78643K 34 0 rtable 91 2K 3K 78643K 211 0 ifaddr 49 11K 11K 78643K 55 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1473 0 iov 0 0K 12K 78643K 5 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1288 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 9 0K 0K 78643K 10 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 83 0 proc 60 63K 95K 78643K 439 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 2 0 in_multi 35 2K 2K 78643K 50 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 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 209 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 117 22K 23K 78643K 1185 0 UVM aobj 8 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 7 0K 0K 78643K 12 0 temp 78 3845K 3919K 78643K 4995 0 kqueue 3 4K 16K 78643K 10 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 21 0 19 1 0 1 1 0 8 0 rtentry 112 49 0 12 2 0 2 2 0 8 0 unpcb 120 63 0 53 1 0 1 1 0 8 0 syncache 264 7 0 7 3 2 1 1 0 8 1 tcpqe 32 249 0 249 2 2 0 1 0 8 0 tcpcb 544 27 0 20 1 0 1 1 0 8 0 inpcb 280 98 0 87 2 0 2 2 0 8 1 nd6 48 7 0 3 1 0 1 1 0 8 0 pkpcb 40 4 0 4 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 14 0 0 1 0 1 1 0 8 0 pfstkey 112 14 0 0 1 0 1 1 0 8 0 pfstate 328 14 0 0 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 256 212 0 44 12 1 11 12 0 8 0 art_table 32 213 0 44 2 0 2 2 0 8 0 art_node 16 48 0 14 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 8 0 1 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1498 0 90 89 0 89 89 0 8 0 ffsino 272 1498 0 90 95 1 94 94 0 8 0 nchpl 144 1789 0 180 60 0 60 60 0 8 0 uvmvnodes 72 1604 0 0 30 0 30 30 0 8 0 vnodes 208 1604 0 0 85 0 85 85 0 8 0 namei 1024 4747 0 4747 2 1 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 192 5361 0 5361 9 8 1 7 0 8 1 plimitpl 152 19 0 11 1 0 1 1 0 8 0 sigapl 424 299 0 266 4 0 4 4 0 8 0 futexpl 56 974 0 974 1 0 1 1 0 8 1 knotepl 112 68 0 49 1 0 1 1 0 8 0 kqueuepl 144 28 0 24 1 0 1 1 0 8 0 pipelkpl 48 87 0 77 1 0 1 1 0 8 0 pipepl 120 174 0 155 1 0 1 1 0 8 0 fdescpl 496 283 0 266 3 0 3 3 0 8 0 filepl 152 1524 0 1419 6 1 5 5 0 8 0 lockfpl 104 15 0 14 1 0 1 1 0 8 0 lockfspl 48 7 0 6 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 99 0 90 1 0 1 1 0 8 0 zombiepl 144 269 0 269 3 2 1 1 0 8 1 processpl 984 299 0 266 6 1 5 5 0 8 0 procpl 624 430 0 386 4 0 4 4 0 8 0 sockpl 400 189 0 166 6 3 3 4 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 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 164 0 0 20 0 20 20 0 8 0 mtagpl 80 43 0 0 1 0 1 1 0 8 0 mbufpl 256 232 0 0 14 0 14 14 0 8 0 bufpl 280 3472 0 133 239 0 239 239 0 8 0 anonpl 16 40772 0 26019 61 1 60 60 0 124 0 amapchunkpl 152 1363 0 1224 7 0 7 7 0 158 0 amappl16 192 1113 0 319 40 0 40 40 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 23 0 19 1 0 1 1 0 8 0 amappl13 168 56 0 51 1 0 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 54 0 38 1 0 1 1 0 8 0 amappl10 144 49 0 42 1 0 1 1 0 8 0 amappl9 136 365 0 364 1 0 1 1 0 8 0 amappl8 128 360 0 323 2 0 2 2 0 8 0 amappl7 120 141 0 128 1 0 1 1 0 8 0 amappl6 112 27 0 23 1 0 1 1 0 8 0 amappl5 104 223 0 207 1 0 1 1 0 8 0 amappl4 96 520 0 488 1 0 1 1 0 8 0 amappl3 88 105 0 100 1 0 1 1 0 8 0 amappl2 80 1262 0 1185 2 0 2 2 0 8 0 amappl1 72 16234 0 15778 23 13 10 18 0 8 0 amappl 80 674 0 628 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 9 0 2 1 0 1 1 0 8 0 uaddrrnd 24 283 0 266 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 283 0 266 1 0 1 1 0 8 0 vmmpekpl 168 6341 0 6310 2 0 2 2 0 8 0 vmmpepl 168 41438 0 39383 119 29 90 112 0 357 0 vmsppl 368 282 0 266 2 0 2 2 0 8 0 pdppl 4096 573 0 532 7 1 6 6 0 8 0 pvpl 32 144358 0 126417 146 0 146 146 0 265 1 pmappl 232 282 0 266 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 263 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(ffffffff826e9ff0) 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(ffffffff828f6f50) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828f6f50) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff8000230faf30,ffff80000065ad80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __sanitizer_cov_trace_cmp4(ffffffff828f6f50,ffffffff828f6f50) at __sanitizer_cov_trace_cmp4+0xb sys/dev/kcov.c:134 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_cmp8(ffff800020e189d8,ffff800020e18a50) at __sanitizer_cov_trace_cmp8+0x63 sys/dev/kcov.c:144 syscall(ffff8000230fb2c0) at syscall+0x3dc mi_syscall sys/sys/syscall_mi.h:87 [inline] syscall(ffff8000230fb2c0) at syscall+0x3dc sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbd420, count: -12 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(ffffffff82897bd8,1) 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,fffffd80080dae38,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff5c0,fffffd80080dae38,2,1,20000000,20000001) 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(ffff80002411f150,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff80002411f150) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e18288,ffff80002411f318,ffff80002411f360) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff80002411f3e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002411f3e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8a6ab02d500, count: -14