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(ffff800021fa2f40,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021fa2f40) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ecf878,ffff800021fa3108,ffff800021fa3150) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021fa31d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fa31d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f0dea05010, 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(ffffffff826baad8,1) 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,fffffd8068d64aa0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff5c0,fffffd8068d64aa0,2,1,20000000,20000001) 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(ffff800021fa2f40,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021fa2f40) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ecf878,ffff800021fa3108,ffff800021fa3150) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021fa31d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fa31d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f0dea05010, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800021fa29c0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002316c000 rax 0xffff8000009d78c0 r8 0xffffffff8168b22f kprintf+0x16f r9 0x1 r10 0x2 r11 0x2c2bf12a76dd8ec0 r12 0x1 r13 0xfffffd8068d6bed8 r14 0xffff800020ecf878 r15 0x3 rip 0xffffffff8150f128 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021fa29b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=180957 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ecf608,0xffffffff82684480 process=0xffff800020ed9738 user=0xffff800021f9e000, 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 22835 484997 46807 0 7 0 syz-executor.1 *22835 180957 46807 0 7 0x4000000 syz-executor.1 64524 54465 59976 0 3 0x80 nanosleep syz-executor.0 64524 297634 59976 0 3 0x4000080 pipewr syz-executor.0 64524 482990 59976 0 3 0x4000080 pipewr syz-executor.0 64524 313468 59976 0 3 0x4000080 fsleep syz-executor.0 25499 468680 0 0 3 0x14200 bored sosplice 46807 421594 60349 0 3 0x82 nanosleep syz-executor.1 59976 310074 60349 0 3 0x82 nanosleep syz-executor.0 60349 125515 89166 0 3 0x82 thrsleep syz-fuzzer 60349 169933 89166 0 3 0x4000082 nanosleep syz-fuzzer 60349 171472 89166 0 3 0x4000082 thrsleep syz-fuzzer 60349 328126 89166 0 3 0x4000082 thrsleep syz-fuzzer 60349 174316 89166 0 3 0x4000082 nanosleep syz-fuzzer 60349 415858 89166 0 3 0x4000082 kqread syz-fuzzer 60349 146363 89166 0 3 0x4000082 thrsleep syz-fuzzer 60349 86605 89166 0 3 0x4000082 thrsleep syz-fuzzer 60349 87588 89166 0 3 0x4000082 thrsleep syz-fuzzer 60349 492798 89166 0 3 0x4000082 thrsleep syz-fuzzer 89166 455905 70203 0 3 0x10008a pause ksh 70203 435758 49939 0 3 0x92 select sshd 30227 473861 1 0 3 0x100083 ttyin getty 49939 182171 1 0 3 0x80 select sshd 78593 370636 92320 74 3 0x100092 bpf pflogd 92320 488140 1 0 3 0x80 netio pflogd 84090 411380 29709 73 3 0x100090 kqread syslogd 29709 484739 1 0 3 0x100082 netio syslogd 55778 455592 1 77 3 0x100090 poll dhclient 18624 99286 1 0 3 0x80 poll dhclient 74800 468178 0 0 3 0x14200 bored smr 43310 413393 0 0 3 0x14200 pgzero zerothread 89355 136914 0 0 3 0x14200 aiodoned aiodoned 51317 51531 0 0 3 0x14200 syncer update 70635 381441 0 0 3 0x14200 cleaner cleaner 58907 19789 0 0 3 0x14200 reaper reaper 60497 90976 0 0 3 0x14200 pgdaemon pagedaemon 83535 388925 0 0 3 0x14200 bored crynlk 51884 427080 0 0 3 0x14200 bored crypto 90537 347521 0 0 3 0x40014200 acpi0 acpi0 44866 394576 0 0 3 0x40014200 idle1 84967 384652 0 0 3 0x14200 bored softnet 82844 430259 0 0 3 0x14200 bored systqmp 51589 17187 0 0 3 0x14200 bored systq 28020 85995 0 0 3 0x40014200 bored softclock 47180 505097 0 0 3 0x40014200 idle0 1 430453 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 22835 (syz-executor.1) thread 0xffff800020ecf878 (180957) 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 (0xffffffff824cda98) #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 (0xffffffff82658948) #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 9500 6407K 6675K 78643K 10689 0 pcb 13 8K 8K 78643K 26 0 rtable 107 3K 3K 78643K 207 0 ifaddr 60 12K 12K 78643K 64 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1473 0 iov 0 0K 12K 78643K 6 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1249 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 16 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 101 0 proc 60 63K 83K 78643K 446 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 10 0 in_multi 43 2K 2K 78643K 48 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 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 210 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 116 22K 22K 78643K 1290 0 UVM aobj 4 4K 4K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 6 0 NDP 9 0K 0K 78643K 13 0 temp 81 3032K 3096K 78643K 2225 0 kqueue 3 4K 4K 78643K 3 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 19 0 17 1 0 1 1 0 8 0 rtentry 112 46 0 1 2 0 2 2 0 8 0 unpcb 120 47 0 37 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 523 0 523 1 1 0 1 0 8 0 tcpcb 544 42 0 38 1 0 1 1 0 8 0 inpcb 280 164 0 155 2 1 1 2 0 8 0 nd6 48 7 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 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 pfstitem 24 27 0 4 1 0 1 1 0 8 0 pfstkey 112 27 0 4 1 0 1 1 0 8 0 pfstate 328 27 0 4 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 256 218 0 0 14 0 14 14 0 8 0 art_table 32 219 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1521 0 115 89 0 89 89 0 8 0 ffsino 272 1521 0 115 96 1 95 95 0 8 0 nchpl 144 1827 0 218 60 0 60 60 0 8 0 uvmvnodes 72 1584 0 0 29 0 29 29 0 8 0 vnodes 208 1584 0 0 84 0 84 84 0 8 0 namei 1024 4824 0 4824 2 1 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 192 5032 0 5032 9 8 1 7 0 8 1 plimitpl 152 23 0 15 1 0 1 1 0 8 0 sigapl 424 317 0 284 4 0 4 4 0 8 0 futexpl 56 998 0 997 2 1 1 1 0 8 0 knotepl 112 61 0 42 1 0 1 1 0 8 0 kqueuepl 144 6 0 4 1 0 1 1 0 8 0 pipelkpl 48 120 0 109 1 0 1 1 0 8 0 pipepl 120 240 0 219 1 0 1 1 0 8 0 fdescpl 496 301 0 284 3 0 3 3 0 8 0 filepl 152 1603 0 1499 6 1 5 5 0 8 0 lockfpl 104 17 0 16 1 0 1 1 0 8 0 lockfspl 48 8 0 7 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 96 129 0 120 1 0 1 1 0 8 0 zombiepl 144 287 0 287 2 1 1 1 0 8 1 processpl 984 317 0 284 6 1 5 5 0 8 0 procpl 624 537 0 491 5 1 4 5 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 230 0 209 5 2 3 3 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 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 190 0 0 23 0 23 23 0 8 0 mtagpl 80 5 0 0 1 0 1 1 0 8 0 mbufpl 256 229 0 0 14 0 14 14 0 8 0 bufpl 280 3572 0 132 246 0 246 246 0 8 0 anonpl 16 41521 0 26916 60 1 59 59 0 124 0 amapchunkpl 152 1569 0 1432 8 2 6 8 0 158 0 amappl16 192 1166 0 375 40 0 40 40 0 8 0 amappl15 184 33 0 30 1 0 1 1 0 8 0 amappl14 176 30 0 24 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 92 0 75 1 0 1 1 0 8 0 amappl10 144 54 0 45 1 0 1 1 0 8 0 amappl9 136 392 0 390 1 0 1 1 0 8 0 amappl8 128 344 0 314 2 0 2 2 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 22 0 19 1 0 1 1 0 8 0 amappl5 104 194 0 177 1 0 1 1 0 8 0 amappl4 96 491 0 459 1 0 1 1 0 8 0 amappl3 88 101 0 96 1 0 1 1 0 8 0 amappl2 80 1490 0 1412 2 0 2 2 0 8 0 amappl1 72 16743 0 16270 23 13 10 18 0 8 0 amappl 80 779 0 734 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 301 0 284 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 301 0 284 1 0 1 1 0 8 0 vmmpekpl 168 6685 0 6655 2 0 2 2 0 8 0 vmmpepl 168 43490 0 41430 111 20 91 104 0 357 0 vmsppl 368 300 0 284 2 0 2 2 0 8 0 pdppl 4096 610 0 568 6 0 6 6 0 8 0 pvpl 32 146767 0 128924 145 0 145 145 0 265 0 pmappl 232 300 0 284 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 268 0 8 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(ffffffff8250eff0) 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(ffffffff82658740) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82658740) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800021f97030,ffff800000658e00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff82658740) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82658740) 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 __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 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff5730, 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(ffffffff826baad8,1) 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,fffffd8068d64aa0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff5c0,fffffd8068d64aa0,2,1,20000000,20000001) 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(ffff800021fa2f40,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021fa2f40) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ecf878,ffff800021fa3108,ffff800021fa3150) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021fa31d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fa31d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f0dea05010, count: -14