uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023f33850,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023f33850) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e09c48,ffff800023f33a18,ffff800023f33a60) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f33ae0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f33ae0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3baad4dac0, 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(ffffffff828c5b10,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807f0008a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807f0008a0,fffffd80669e62d0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807f0008a0,fffffd80669e62d0,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023f33850,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023f33850) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e09c48,ffff800023f33a18,ffff800023f33a60) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f33ae0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f33ae0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3baad4dac0, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800023f332d0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800020ed8000 rax 0xffff800000aeaec0 r8 0xffffffff81e2547f kprintf+0x16f r9 0x1 r10 0x2 r11 0x6586fe7a34ffae43 r12 0x1 r13 0xfffffd80685af660 r14 0xffff800020e09c48 r15 0x3 rip 0xffffffff820bb618 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800023f332c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=82949 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e0ad58,0xffffffff8291fa98 process=0xffff800020eb7768 user=0xffff800023f2e000, vmspace=0xfffffd807f0008a0 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 19317 279471 84384 0 7 0 syz-executor.0 *19317 82949 84384 0 7 0x4000000 syz-executor.0 28845 203009 0 0 3 0x14200 bored sosplice 5643 138930 68208 0 3 0x82 nanosleep syz-executor.1 84384 58920 68208 0 3 0x82 nanosleep syz-executor.0 68208 471224 20107 0 3 0x82 thrsleep syz-fuzzer 68208 1173 20107 0 3 0x4000082 nanosleep syz-fuzzer 68208 169782 20107 0 3 0x4000082 thrsleep syz-fuzzer 68208 374054 20107 0 3 0x4000082 thrsleep syz-fuzzer 68208 219153 20107 0 3 0x4000082 thrsleep syz-fuzzer 68208 414365 20107 0 3 0x4000082 thrsleep syz-fuzzer 68208 390737 20107 0 3 0x4000082 thrsleep syz-fuzzer 68208 399439 20107 0 3 0x4000082 thrsleep syz-fuzzer 68208 501883 20107 0 3 0x4000082 kqread syz-fuzzer 68208 55491 20107 0 3 0x4000082 thrsleep syz-fuzzer 20107 506024 82435 0 3 0x10008a pause ksh 82435 426734 31018 0 3 0x92 select sshd 89495 234787 1 0 3 0x100083 ttyin getty 31018 249846 1 0 3 0x80 select sshd 35355 347543 115 74 3 0x100092 bpf pflogd 115 461666 1 0 3 0x80 netio pflogd 91102 106990 29369 73 3 0x100090 kqread syslogd 29369 368302 1 0 3 0x100082 netio syslogd 70318 448250 1 77 3 0x100090 poll dhclient 99546 223101 1 0 3 0x80 poll dhclient 55938 204856 0 0 3 0x14200 bored smr 68333 223257 0 0 3 0x14200 pgzero zerothread 31939 337849 0 0 3 0x14200 aiodoned aiodoned 62563 205922 0 0 3 0x14200 syncer update 42332 403453 0 0 3 0x14200 cleaner cleaner 14718 52820 0 0 3 0x14200 reaper reaper 13336 273448 0 0 3 0x14200 pgdaemon pagedaemon 80730 139262 0 0 3 0x14200 bored crynlk 64726 496666 0 0 3 0x14200 bored crypto 99602 66278 0 0 3 0x40014200 acpi0 acpi0 7573 202513 0 0 3 0x40014200 idle1 53286 200455 0 0 3 0x14200 bored softnet 95527 352234 0 0 3 0x14200 bored systqmp 3163 103847 0 0 3 0x14200 bored systq 37875 436846 0 0 3 0x40014200 bored softclock 93393 112377 0 0 3 0x40014200 idle0 1 69657 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 19317 (syz-executor.0) thread 0xffff800020e09c48 (82949) exclusive rwlock vmmaplk r = 0 (0xfffffd807f0008b8) #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 (0xffffffff826f12c8) #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 (0xffffffff8292e900) #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 9514 6791K 7307K 78643K 11188 0 pcb 13 8K 8K 78643K 39 0 rtable 115 6K 6K 78643K 311 0 ifaddr 58 13K 13K 78643K 101 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1493 0 iov 0 0K 12K 78643K 9 0 mount 1 1K 1K 78643K 1 0 vnodes 1224 77K 77K 78643K 1370 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 1K 1K 78643K 24 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 235 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 95K 78643K 460 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 70 0 in_multi 53 3K 3K 78643K 88 0 ether_multi 1 0K 0K 78643K 2 0 mrt 0 0K 0K 78643K 2 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 214 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 110 22K 23K 78643K 1620 0 UVM aobj 9 4K 4K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 8 0 NDP 8 0K 0K 78643K 23 0 temp 78 3855K 3919K 78643K 6932 0 kqueue 3 4K 8K 78643K 7 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 8 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 30 0 28 1 0 1 1 0 8 0 rtentry 112 65 0 22 2 0 2 2 0 8 0 unpcb 120 79 0 69 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 636 0 636 1 1 0 1 0 8 0 tcpcb 544 70 0 66 1 0 1 1 0 8 0 inpcb 296 333 0 325 3 1 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 14 0 9 1 0 1 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 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 pfrktable 1344 9 0 4 1 0 1 1 0 8 0 pfstitem 24 23 0 3 1 0 1 1 0 8 0 pfstkey 112 23 0 3 1 0 1 1 0 8 0 pfstate 328 23 0 3 2 0 2 2 0 8 0 pfrule 1360 25 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 220 0 46 13 0 13 13 0 8 0 art_table 32 221 0 46 2 0 2 2 0 8 0 art_node 16 64 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 10 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1667 0 262 89 1 88 89 0 8 0 ffsino 272 1667 0 262 95 1 94 94 0 8 0 nchpl 144 2158 0 560 60 0 60 60 0 8 0 uvmvnodes 72 1847 0 0 34 0 34 34 0 8 0 vnodes 208 1847 0 0 98 0 98 98 0 8 0 namei 1024 5800 0 5800 3 2 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 1 0 1 0 8 0 pfiaddrpl 120 4 0 0 1 0 1 1 0 8 0 scxspl 192 6639 0 6639 9 8 1 7 0 8 1 plimitpl 152 29 0 21 1 0 1 1 0 8 0 sigapl 424 451 0 419 4 0 4 4 0 8 0 futexpl 56 2970 0 2970 2 1 1 1 0 8 1 knotepl 112 65 0 46 1 0 1 1 0 8 0 kqueuepl 144 24 0 22 1 0 1 1 0 8 0 pipepl 304 91 0 81 1 0 1 1 0 8 0 fdescpl 496 435 0 419 3 0 3 3 0 8 0 filepl 152 2206 0 2105 7 2 5 5 0 8 1 lockfpl 104 25 0 24 1 0 1 1 0 8 0 lockfspl 48 11 0 10 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 96 148 0 139 1 0 1 1 0 8 0 zombiepl 144 428 0 427 3 2 1 1 0 8 0 processpl 992 451 0 418 6 1 5 5 0 8 0 procpl 624 859 0 816 4 0 4 4 0 8 0 sosppl 128 5 0 5 2 2 0 1 0 8 0 sockpl 400 442 0 422 5 2 3 3 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 219 0 0 27 0 27 27 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 352 0 0 21 0 21 21 0 8 0 bufpl 280 3828 0 133 264 0 264 264 0 8 0 anonpl 16 58186 0 41862 82 16 66 81 0 124 0 amapchunkpl 152 2278 0 2129 10 3 7 10 0 158 0 amappl16 192 2066 0 1190 56 11 45 55 0 8 1 amappl15 184 99 0 96 1 0 1 1 0 8 0 amappl14 176 129 0 124 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 6 0 6 1 1 0 1 0 8 0 amappl11 152 56 0 40 1 0 1 1 0 8 0 amappl10 144 18 0 13 1 0 1 1 0 8 0 amappl9 136 397 0 394 1 0 1 1 0 8 0 amappl8 128 332 0 309 1 0 1 1 0 8 0 amappl7 120 116 0 106 1 0 1 1 0 8 0 amappl6 112 25 0 21 1 0 1 1 0 8 0 amappl5 104 329 0 313 1 0 1 1 0 8 0 amappl4 96 491 0 462 1 0 1 1 0 8 0 amappl3 88 220 0 214 1 0 1 1 0 8 0 amappl2 80 2613 0 2542 2 0 2 2 0 8 0 amappl1 72 20983 0 20535 23 13 10 18 0 8 0 amappl 80 1112 0 1066 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 12 0 4 1 0 1 1 0 8 0 uaddrrnd 24 437 0 421 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 437 0 421 1 0 1 1 0 8 0 vmmpekpl 168 7248 0 7214 2 0 2 2 0 8 0 vmmpepl 168 61998 0 59959 125 30 95 117 0 357 2 vmsppl 368 436 0 421 2 0 2 2 0 8 0 pdppl 4096 881 0 842 7 1 6 6 0 8 0 pvpl 32 190651 0 171134 195 35 160 193 0 265 1 pmappl 232 436 0 421 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 278 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(ffffffff82793ff0) 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(ffffffff8292e6f8,ffffffff8292e6f8) at __sanitizer_cov_trace_cmp4+0x72 sys/dev/kcov.c:137 intr_handler(ffff8000230dce40,ffff80000065ad80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x16 sys/dev/kcov.c:79 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7fffff4c80, 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(ffffffff828c5b10,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807f0008a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807f0008a0,fffffd80669e62d0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807f0008a0,fffffd80669e62d0,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807f0008a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023f33850,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023f33850) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020e09c48,ffff800023f33a18,ffff800023f33a60) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f33ae0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f33ae0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3baad4dac0, count: -14