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(ffff800023f3b7f0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023f3b7f0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020dfd878,ffff800023f3b9b8,ffff800023f3ba00) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f3ba80) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f3ba80) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f14770ac0, 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(ffffffff828f1f70,1) 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,fffffd806882fdf8,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff000,fffffd806882fdf8,2,1,20000000,20000001) 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(ffff800023f3b7f0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023f3b7f0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020dfd878,ffff800023f3b9b8,ffff800023f3ba00) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f3ba80) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f3ba80) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f14770ac0, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800023f3b270 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800020ed4000 rax 0xffff800000ae7f40 r8 0xffffffff82319f3f kprintf+0x16f r9 0x1 r10 0x2 r11 0xafa5965569c47d9 r12 0x1 r13 0xfffffd80688322b8 r14 0xffff800020dfd878 r15 0x3 rip 0xffffffff812fccd8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800023f3b260 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=336666 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020dfd398,0xffffffff828ea9e0 process=0xffff800020e47b10 user=0xffff800023f36000, 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 88463 199251 41008 0 7 0 syz-executor.0 *88463 336666 41008 0 7 0x4000000 syz-executor.0 42624 277991 92123 0 3 0x80 nanosleep syz-executor.1 42624 46572 92123 0 3 0x4000080 tunread syz-executor.1 42624 26557 92123 0 3 0x4000080 fsleep syz-executor.1 74887 408717 0 0 3 0x14200 bored sosplice 92123 78530 35718 0 3 0x82 nanosleep syz-executor.1 41008 213245 35718 0 3 0x82 nanosleep syz-executor.0 35718 439127 25915 0 3 0x82 thrsleep syz-fuzzer 35718 49465 25915 0 3 0x4000082 nanosleep syz-fuzzer 35718 216153 25915 0 3 0x4000082 thrsleep syz-fuzzer 35718 115467 25915 0 3 0x4000082 thrsleep syz-fuzzer 35718 520025 25915 0 3 0x4000082 thrsleep syz-fuzzer 35718 354323 25915 0 3 0x4000082 thrsleep syz-fuzzer 35718 220355 25915 0 3 0x4000082 kqread syz-fuzzer 35718 34769 25915 0 3 0x4000082 thrsleep syz-fuzzer 35718 164224 25915 0 3 0x4000082 thrsleep syz-fuzzer 35718 406269 25915 0 3 0x4000082 nanosleep syz-fuzzer 25915 486433 21882 0 3 0x10008a pause ksh 21882 162806 246 0 3 0x92 select sshd 15319 406353 1 0 3 0x100083 ttyin getty 246 468130 1 0 3 0x80 select sshd 6527 152929 4312 74 3 0x100092 bpf pflogd 4312 52816 1 0 3 0x80 netio pflogd 45667 312524 50270 73 3 0x100090 kqread syslogd 50270 456290 1 0 3 0x100082 netio syslogd 43253 207844 1 77 3 0x100090 poll dhclient 64995 294683 1 0 3 0x80 poll dhclient 26013 117831 0 0 3 0x14200 bored smr 27395 252669 0 0 3 0x14200 pgzero zerothread 23690 370793 0 0 3 0x14200 aiodoned aiodoned 43784 27731 0 0 3 0x14200 syncer update 13532 457901 0 0 3 0x14200 cleaner cleaner 28288 499825 0 0 3 0x14200 reaper reaper 90972 49654 0 0 3 0x14200 pgdaemon pagedaemon 48210 506993 0 0 3 0x14200 bored crynlk 73821 227386 0 0 3 0x14200 bored crypto 44034 217890 0 0 3 0x40014200 acpi0 acpi0 45409 492807 0 0 3 0x40014200 idle1 47123 477049 0 0 3 0x14200 bored softnet 44255 224580 0 0 3 0x14200 bored systqmp 40694 58505 0 0 3 0x14200 bored systq 37112 475338 0 0 3 0x40014200 bored softclock 54052 59854 0 0 3 0x40014200 idle0 1 405010 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 88463 (syz-executor.0) thread 0xffff800020dfd878 (336666) 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 (0xffffffff82714538) #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 (0xffffffff8290bf70) #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 9523 6420K 6792K 78643K 10864 0 pcb 13 8K 8K 78643K 192 0 rtable 116 8K 11K 78643K 367 0 ifaddr 88 17K 17K 78643K 146 0 counters 49 34K 34K 78643K 59 0 ioctlops 0 0K 4K 78643K 1524 0 iov 0 0K 16K 78643K 23 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1300 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 54 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 235 0 sigio 0 0K 0K 78643K 4 0 proc 62 63K 83K 78643K 464 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 7 0 in_multi 42 2K 2K 78643K 66 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 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 227 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 1702 0 UVM aobj 13 2K 2K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 36 0 NDP 14 0K 0K 78643K 24 0 temp 124 3852K 3916K 78643K 12300 0 kqueue 3 4K 8K 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 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 33 1 0 1 1 0 8 0 rtentry 112 51 0 12 2 0 2 2 0 8 0 unpcb 120 91 0 81 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 429 0 429 2 2 0 1 0 8 0 tcpcb 544 200 0 196 1 0 1 1 0 8 0 inpcb 280 703 0 693 2 0 2 2 0 8 0 nd6 48 9 0 4 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 0 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 47 0 38 2 1 1 2 0 8 0 pfstitem 24 34 0 4 1 0 1 1 0 8 0 pfstkey 112 34 0 4 1 0 1 1 0 8 0 pfstate 328 32 0 4 3 0 3 3 0 8 0 pfsrctr 152 10 0 2 1 0 1 1 0 8 0 pfrule 1360 39 0 24 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 257 0 64 14 1 13 14 0 8 0 art_table 32 258 0 64 2 0 2 2 0 8 0 art_node 16 50 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 10 1 0 1 1 0 8 0 semapl 112 52 0 42 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1722 0 317 89 1 88 89 0 8 0 ffsino 272 1722 0 317 95 1 94 94 0 8 0 nchpl 144 2236 0 623 60 0 60 60 0 8 0 uvmvnodes 72 1812 0 0 33 0 33 33 0 8 0 vnodes 208 1812 0 0 96 0 96 96 0 8 0 namei 1024 5893 0 5893 3 2 1 1 0 8 1 percpumem 16 40 0 5 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 1 2 1 1 1 0 8 0 pfiaddrpl 120 18 0 10 1 0 1 1 0 8 0 scxspl 192 6600 0 6600 10 9 1 7 0 8 1 plimitpl 152 22 0 14 1 0 1 1 0 8 0 sigapl 424 451 0 418 4 0 4 4 0 8 0 futexpl 56 3807 0 3806 1 0 1 1 0 8 0 knotepl 112 68 0 49 1 0 1 1 0 8 0 kqueuepl 144 42 0 40 1 0 1 1 0 8 0 pipelkpl 48 95 0 85 1 0 1 1 0 8 0 pipepl 120 190 0 171 1 0 1 1 0 8 0 fdescpl 496 435 0 418 3 0 3 3 0 8 0 filepl 152 2592 0 2487 6 1 5 5 0 8 0 lockfpl 104 43 0 42 1 0 1 1 0 8 0 lockfspl 48 19 0 18 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 147 0 138 1 0 1 1 0 8 0 zombiepl 144 420 0 420 3 2 1 1 0 8 1 processpl 984 451 0 418 6 1 5 5 0 8 0 procpl 624 923 0 878 4 0 4 4 0 8 0 sosppl 128 7 0 7 2 2 0 1 0 8 0 sockpl 400 830 0 809 5 2 3 4 0 8 0 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 172 0 0 21 0 21 21 0 8 0 mtagpl 80 19 0 0 1 0 1 1 0 8 0 mbufpl 256 204 0 0 12 0 12 12 0 8 0 bufpl 280 3804 0 132 263 0 263 263 0 8 0 anonpl 16 57496 0 41398 83 14 69 82 0 124 0 amapchunkpl 152 2498 0 2333 11 2 9 11 0 158 0 amappl16 192 2135 0 1269 56 10 46 56 0 8 0 amappl15 184 9 0 7 1 0 1 1 0 8 0 amappl14 176 130 0 121 1 0 1 1 0 8 0 amappl13 168 31 0 27 1 0 1 1 0 8 0 amappl12 160 7 0 6 2 1 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 18 0 14 1 0 1 1 0 8 0 amappl9 136 488 0 484 1 0 1 1 0 8 0 amappl8 128 454 0 417 2 0 2 2 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 24 0 21 2 1 1 1 0 8 0 amappl5 104 339 0 322 1 0 1 1 0 8 0 amappl4 96 484 0 457 1 0 1 1 0 8 0 amappl3 88 208 0 202 1 0 1 1 0 8 0 amappl2 80 2537 0 2459 2 0 2 2 0 8 0 amappl1 72 19545 0 19084 23 13 10 18 0 8 0 amappl 80 1181 0 1132 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 13 0 1 1 0 1 1 0 8 0 uaddrrnd 24 437 0 419 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 437 0 419 1 0 1 1 0 8 0 vmmpekpl 168 7508 0 7472 2 0 2 2 0 8 0 vmmpepl 168 60095 0 57962 123 29 94 113 0 357 1 vmsppl 368 436 0 419 2 0 2 2 0 8 0 pdppl 4096 881 0 839 7 1 6 6 0 8 0 pvpl 32 186436 0 167059 194 34 160 194 0 265 0 pmappl 232 436 0 419 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 266 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(ffffffff82718ff0) 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(8cfa0,8cfa1) at __sanitizer_cov_trace_cmp4+0x2e kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(8cfa0,8cfa1) at __sanitizer_cov_trace_cmp4+0x2e trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(8cfa0,8cfa1) at __sanitizer_cov_trace_cmp4+0x2e sys/dev/kcov.c:135 __mp_lock(ffffffff8290bd68) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8290bd68) at __mp_lock+0x139 sys/kern/kern_lock.c:147 intr_handler(ffff800023f35110,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(ffffffff8290bd68,ffffffff8290bd68) at __sanitizer_cov_trace_cmp4+0x7 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_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x46 kd_curproc sys/dev/kcov.c:415 [inline] __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x46 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x46 sys/dev/kcov.c:163 userret(ffff800020dfd398) at userret+0x38 sys/kern/kern_sig.c:1857 syscall(ffff800023f35480) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800023f35480) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffa4d0, count: -14 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(ffffffff828f1f70,1) 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,fffffd806882fdf8,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff000,fffffd806882fdf8,2,1,20000000,20000001) 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(ffff800023f3b7f0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023f3b7f0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020dfd878,ffff800023f3b9b8,ffff800023f3ba00) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f3ba80) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f3ba80) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f14770ac0, count: -14