uvm_fault(fffffd8064ada468,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd8064ada468,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff8000241bb780,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff8000241bb780) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800024143880,ffff8000241bb948,ffff8000241bb990) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff8000241bba10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241bba10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ef733f87c0, 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(ffffffff828f74a0,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd8064ada468,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd8064ada468,fffffd80686ec450,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd8064ada468,fffffd80686ec450,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd8064ada468,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd8064ada468,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff8000241bb780,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff8000241bb780) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800024143880,ffff8000241bb948,ffff8000241bb990) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff8000241bba10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241bba10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ef733f87c0, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff8000241bb200 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800023110000 rax 0xffff800000aa1340 r8 0xffffffff817378df kprintf+0x16f r9 0x1 r10 0x2 r11 0xee3319b01f98b7b r12 0x1 r13 0xfffffd80686ef6d8 r14 0xffff800024143880 r15 0x3 rip 0xffffffff81d71358 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000241bb1f0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=217061 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800024143af0,0xffffffff8290e270 process=0xffff800024190f98 user=0xffff8000241b6000, vmspace=0xfffffd8064ada468 estcpu=36, cpticks=17, pctcpu=0.0 user=0, sys=17, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 4086 151600 10394 0 7 0 syz-executor.1 * 4086 217061 10394 0 7 0x4000000 syz-executor.1 99424 307077 0 0 3 0x14280 nfsidl nfsio 59291 201430 0 0 3 0x14280 nfsidl nfsio 93635 321467 0 0 3 0x14280 nfsidl nfsio 30210 387967 0 0 3 0x14280 nfsidl nfsio 24904 192501 0 0 3 0x14280 nfsidl nfsio 86312 444660 0 0 3 0x14280 nfsidl nfsio 69970 108967 0 0 3 0x14280 nfsidl nfsio 78185 470324 0 0 3 0x14280 nfsidl nfsio 59018 129906 0 0 3 0x14280 nfsidl nfsio 81525 392984 0 0 3 0x14280 nfsidl nfsio 49487 351877 0 0 3 0x14280 nfsidl nfsio 4304 35211 0 0 3 0x14280 nfsidl nfsio 6857 33114 0 0 3 0x14280 nfsidl nfsio 32475 492750 0 0 3 0x14280 nfsidl nfsio 31909 66899 0 0 3 0x14280 nfsidl nfsio 19978 296718 0 0 3 0x14280 nfsidl nfsio 48640 96365 0 0 3 0x14280 nfsidl nfsio 46006 276253 0 0 3 0x14280 nfsidl nfsio 90898 192397 0 0 3 0x14280 nfsidl nfsio 99126 371512 0 0 3 0x14280 nfsidl nfsio 50198 458050 1 0 3 0x100083 ttyin getty 56365 394777 0 0 3 0x14200 bored sosplice 10394 468856 29119 0 3 0x82 nanosleep syz-executor.1 59740 318052 29119 0 3 0x82 nanosleep syz-executor.0 29119 121884 62086 0 3 0x82 thrsleep syz-fuzzer 29119 7148 62086 0 3 0x4000082 thrsleep syz-fuzzer 29119 513988 62086 0 3 0x4000082 thrsleep syz-fuzzer 29119 511455 62086 0 3 0x4000082 thrsleep syz-fuzzer 29119 27029 62086 0 3 0x4000082 thrsleep syz-fuzzer 29119 275893 62086 0 3 0x4000082 thrsleep syz-fuzzer 29119 111930 62086 0 3 0x4000082 thrsleep syz-fuzzer 29119 184042 62086 0 3 0x4000082 kqread syz-fuzzer 29119 502031 62086 0 3 0x4000082 thrsleep syz-fuzzer 29119 444741 62086 0 3 0x4000082 thrsleep syz-fuzzer 62086 240389 38613 0 3 0x10008a pause ksh 38613 437522 57973 0 3 0x92 select sshd 57973 324525 1 0 3 0x80 select sshd 84658 51709 14320 74 3 0x100092 bpf pflogd 14320 346338 1 0 3 0x80 netio pflogd 95531 358777 57972 73 3 0x100090 kqread syslogd 57972 329201 1 0 3 0x100082 netio syslogd 76621 144845 1 77 3 0x100090 poll dhclient 25405 346574 1 0 3 0x80 poll dhclient 58159 354188 0 0 3 0x14200 bored smr 55572 423298 0 0 2 0x14200 zerothread 32766 261690 0 0 3 0x14200 aiodoned aiodoned 53267 240751 0 0 3 0x14200 syncer update 33081 299426 0 0 3 0x14200 cleaner cleaner 8271 280648 0 0 3 0x14200 reaper reaper 84667 169348 0 0 3 0x14200 pgdaemon pagedaemon 60978 272145 0 0 3 0x14200 bored crynlk 95856 77487 0 0 3 0x14200 bored crypto 38300 59503 0 0 3 0x40014200 acpi0 acpi0 97245 447929 0 0 3 0x40014200 idle1 33183 300141 0 0 3 0x14200 bored softnet 99422 323648 0 0 3 0x14200 bored systqmp 52042 100949 0 0 3 0x14200 bored systq 16081 405858 0 0 3 0x40014200 bored softclock 38603 158875 0 0 3 0x40014200 idle0 1 171020 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 4086 (syz-executor.1) thread 0xffff800024143880 (217061) exclusive rwlock vmmaplk r = 0 (0xfffffd8064ada480) #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 (0xffffffff82766c38) #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 (0xffffffff82910a70) #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 9531 6427K 6808K 78643K 11342 0 pcb 13 8K 8K 78643K 115 0 rtable 122 9K 10K 78643K 399 0 ifaddr 103 21K 22K 78643K 197 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 73 0 ioctlops 0 0K 4K 78643K 1563 0 iov 0 0K 32K 78643K 73 0 mount 1 1K 1K 78643K 1 0 vnodes 1214 76K 77K 78643K 1456 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 12 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 144 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 543 0 sigio 0 0K 0K 78643K 16 0 proc 62 63K 95K 78643K 472 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 36 0 in_multi 87 3K 4K 78643K 139 0 ether_multi 1 0K 0K 78643K 11 0 mrt 0 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 251 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 129 87K 88K 78643K 2804 0 UVM aobj 24 4K 4K 78643K 24 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 74 0 NDP 13 0K 0K 78643K 34 0 temp 115 3858K 3923K 78643K 5065 0 kqueue 3 4K 12K 78643K 34 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 45 0 43 1 0 1 1 0 8 0 rtentry 112 55 0 17 2 0 2 2 0 8 0 unpcb 120 261 0 251 1 0 1 1 0 8 0 syncache 264 8 0 8 3 3 0 1 0 8 0 tcpqe 32 615 0 615 2 2 0 1 0 8 0 tcpcb 544 221 0 215 2 1 1 2 0 8 0 inpcb 280 1386 0 1375 3 1 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 8 0 6 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 7 0 7 3 3 0 1 0 8 0 pffrag 232 8 0 8 3 3 0 1 0 482 0 pffrnode 88 8 0 8 3 3 0 1 0 8 0 pffrent 40 232 0 232 3 3 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 30 0 19 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 33 0 13 1 0 1 1 0 8 0 pfstkey 112 33 0 13 1 0 1 1 0 8 0 pfstate 328 33 0 13 3 0 3 3 0 8 0 pfsrctr 152 6 0 6 1 1 0 1 0 8 0 pfrule 1360 37 0 23 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 236 0 80 12 1 11 12 0 8 0 art_table 32 237 0 80 2 0 2 2 0 8 0 art_node 16 54 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 3 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 138 0 128 1 0 1 1 0 8 0 shmpl 112 22 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2143 0 737 90 1 89 89 0 8 0 ffsino 272 2143 0 737 96 1 95 95 0 8 0 nchpl 144 3063 0 1453 60 0 60 60 0 8 0 uvmvnodes 72 2339 0 0 43 0 43 43 0 8 0 vnodes 208 2339 0 0 124 0 124 124 0 8 0 namei 1024 8322 0 8322 4 3 1 1 0 8 1 percpumem 16 47 0 15 1 0 1 1 0 8 0 vcpupl 1984 7 0 0 1 0 1 1 0 8 0 vmpool 560 13 0 6 1 0 1 1 0 8 0 pfiaddrpl 120 11 0 4 1 0 1 1 0 8 0 scxspl 192 9313 0 9313 12 11 1 7 0 8 1 plimitpl 152 30 0 22 1 0 1 1 0 8 0 sigapl 424 780 0 728 6 0 6 6 0 8 0 futexpl 56 8102 0 8102 2 1 1 1 0 8 1 knotepl 112 108 0 89 1 0 1 1 0 8 0 kqueuepl 144 92 0 90 1 0 1 1 0 8 0 pipelkpl 48 162 0 152 1 0 1 1 0 8 0 pipepl 120 324 0 305 2 1 1 2 0 8 0 fdescpl 496 744 0 728 3 0 3 3 0 8 0 filepl 152 4709 0 4608 8 3 5 6 0 8 1 lockfpl 104 135 0 134 1 0 1 1 0 8 0 lockfspl 48 43 0 42 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 423 0 412 1 0 1 1 0 8 0 zombiepl 144 737 0 736 3 2 1 1 0 8 0 processpl 984 780 0 727 8 1 7 7 0 8 0 procpl 624 2012 0 1949 6 0 6 6 0 8 1 sosppl 128 10 0 10 3 3 0 1 0 8 0 sockpl 400 1702 0 1679 9 5 4 5 0 8 1 mcl64k 65536 13 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 12 0 0 2 0 2 2 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 189 0 0 23 0 23 23 0 8 0 mtagpl 80 44 0 0 1 0 1 1 0 8 0 mbufpl 256 438 0 0 24 0 24 24 0 8 0 bufpl 280 4371 0 137 303 0 303 303 0 8 0 anonpl 16 87583 0 71260 96 28 68 83 0 124 0 amapchunkpl 152 4229 0 4070 14 7 7 12 0 158 0 amappl16 192 3788 0 2904 68 23 45 57 0 8 0 amappl15 184 254 0 251 1 0 1 1 0 8 0 amappl14 176 30 0 23 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 4 0 4 1 1 0 1 0 8 0 amappl11 152 311 0 294 1 0 1 1 0 8 0 amappl10 144 18 0 14 1 0 1 1 0 8 0 amappl9 136 390 0 388 1 0 1 1 0 8 0 amappl8 128 339 0 314 1 0 1 1 0 8 0 amappl7 120 128 0 115 1 0 1 1 0 8 0 amappl6 112 279 0 274 1 0 1 1 0 8 0 amappl5 104 388 0 372 1 0 1 1 0 8 0 amappl4 96 748 0 715 1 0 1 1 0 8 0 amappl3 88 131 0 124 1 0 1 1 0 8 0 amappl2 80 5039 0 4969 2 0 2 2 0 8 0 amappl1 72 26387 0 25942 23 13 10 18 0 8 0 amappl 80 2262 0 2210 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 23 0 0 1 0 1 1 0 8 0 uaddrrnd 24 757 0 734 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 757 0 734 1 0 1 1 0 8 0 vmmpekpl 168 9433 0 9395 2 0 2 2 0 8 0 vmmpepl 168 96667 0 94625 125 30 95 108 0 357 1 vmsppl 368 756 0 734 4 1 3 3 0 8 0 pdppl 4096 1521 0 1475 9 2 7 7 0 8 0 pvpl 32 259994 0 240433 209 48 161 197 0 265 0 pmappl 232 756 0 734 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 294 0 18 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(ffffffff826feff0) 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_pc() at __sanitizer_cov_trace_pc+0x36 kd_curproc sys/dev/kcov.c:411 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x36 sys/dev/kcov.c:79 intr_handler(ffff8000241b56f0,ffff80000065ad80) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff82910868) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82910868) at __mp_lock+0x12e sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_const_cmp8(ffff8000241b59e0,ffff8000241b59e0) at __sanitizer_cov_trace_const_cmp8+0x7f sys/dev/kcov.c:172 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffde9c0, count: -11 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(ffffffff828f74a0,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd8064ada468,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd8064ada468,fffffd80686ec450,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd8064ada468,fffffd80686ec450,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd8064ada468,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd8064ada468,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff8000241bb780,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff8000241bb780) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800024143880,ffff8000241bb948,ffff8000241bb990) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff8000241bba10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241bba10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ef733f87c0, count: -14