uvm_fault(0xfffffd806bc65b00, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at fifo_read+0x3b: movq 0(%rax),%rax TID PID UID PRFLAGS PFLAGS CPU COMMAND 11945 55680 32767 0x10 0 0 syz-executor.2 * 85363 84349 32767 0x10 0x4000000 1K syz-executor.7 fifo_read(ffff8000212acf90) at fifo_read+0x3b sys/miscfs/fifofs/fifo_vnops.c:240 VOP_READ(fffffd80729700f0,ffff8000212ad020,0,fffffd807f7d68f0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 uvn_io(fffffd80629bf128,ffff8000212ad130,1,202,0) at uvn_io+0x3a7 uvn_get(fffffd80629bf128,ffff000000000000,ffff8000212ad1f8,ffff8000212ad1c8,0,1,8f9d76a3f0796197,0) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1110 uvm_fault_lower(ffff8000212ad360,ffff8000212ad398,ffff8000212ad2e0,0) at uvm_fault_lower+0x361 sys/uvm/uvm_fault.c:1284 uvm_fault(fffffd806bc65b00,20000000,0,1) at uvm_fault+0x238 kpageflttrap(ffff8000212ad500,20000080) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff8000212ad500) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff8000212ad7a0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212ad7a0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8ad6bbf4cc0, count: 3 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806bc65b00, 0x0, 0, 1) -> e ddb{1}> trace fifo_read(ffff8000212acf90) at fifo_read+0x3b sys/miscfs/fifofs/fifo_vnops.c:240 VOP_READ(fffffd80729700f0,ffff8000212ad020,0,fffffd807f7d68f0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 uvn_io(fffffd80629bf128,ffff8000212ad130,1,202,0) at uvn_io+0x3a7 uvn_get(fffffd80629bf128,ffff000000000000,ffff8000212ad1f8,ffff8000212ad1c8,0,1,8f9d76a3f0796197,0) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1110 uvm_fault_lower(ffff8000212ad360,ffff8000212ad398,ffff8000212ad2e0,0) at uvm_fault_lower+0x361 sys/uvm/uvm_fault.c:1284 uvm_fault(fffffd806bc65b00,20000000,0,1) at uvm_fault+0x238 kpageflttrap(ffff8000212ad500,20000080) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff8000212ad500) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff8000212ad7a0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212ad7a0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8ad6bbf4cc0, count: -12 ddb{1}> show registers rdi 0xffff800028592000 rsi 0x409 rbp 0xffff8000212acf80 rbx 0x1 rdx 0xffff800028592000 rcx 0x408 rax 0 r8 0 r9 0 r10 0x9acac34fd7b68cf3 r11 0xcb756e4c07710b90 r12 0xfffffd80729700f0 r13 0xffff8000212ad020 r14 0xffff8000212acf90 r15 0xffff8000212ad020 rip 0xffffffff812d36cb fifo_read+0x3b cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000212acf20 ss 0x10 fifo_read+0x3b: movq 0(%rax),%rax ddb{1}> show proc PROC (syz-executor.7) tid=85363 pid=84349 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000212bcd50,0xffff8000211eb018 process=0xffff80002128f688 user=0xffff8000212a8000, vmspace=0xfffffd806bc65b00 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 14395 116909 21344 32767 2 0x10 syz-executor.3 14395 146546 21344 32767 3 0x4000090 fsleep syz-executor.3 14395 159464 21344 32767 3 0x4000090 fsleep syz-executor.3 55680 11945 9591 32767 7 0x10 syz-executor.2 55680 383004 9591 32767 2 0x4000010 syz-executor.2 94359 499764 30110 32767 2 0x10 syz-executor.5 94359 435868 30110 32767 3 0x4000010 getblk syz-executor.5 94359 37216 30110 32767 2 0x4000010 syz-executor.5 84349 36370 69688 32767 2 0x10 syz-executor.7 84349 432047 69688 32767 3 0x4000090 ttyout syz-executor.7 *84349 85363 69688 32767 7 0x4000010 syz-executor.7 21344 207877 87365 32767 3 0x90 nanoslp syz-executor.3 87365 357397 60839 0 3 0x82 wait syz-executor.3 75305 183431 42333 32767 3 0x10 biowait syz-executor.0 42333 505094 60839 0 3 0x82 wait syz-executor.0 76066 223431 0 0 3 0x14200 bored sosplice 94295 157329 80001 32767 3 0x90 piperd syz-executor.6 12767 497859 53534 32767 3 0x10 biowait syz-executor.4 30110 400185 73572 32767 3 0x90 nanoslp syz-executor.5 80001 84560 60839 0 3 0x82 wait syz-executor.6 73572 31839 60839 0 3 0x82 wait syz-executor.5 69688 221199 56606 32767 3 0x90 nanoslp syz-executor.7 56606 176407 60839 0 3 0x82 wait syz-executor.7 50232 33506 308 32767 3 0x90 piperd syz-executor.1 9591 130727 95128 32767 3 0x90 nanoslp syz-executor.2 53534 246727 60839 0 3 0x82 wait syz-executor.4 308 405711 60839 0 3 0x82 wait syz-executor.1 95128 44483 60839 0 3 0x82 wait syz-executor.2 60839 238421 242 0 3 0x2000082 wait syz-fuzzer 60839 26528 242 0 3 0x6000082 thrsleep syz-fuzzer 60839 516330 242 0 3 0x6000082 thrsleep syz-fuzzer 60839 351695 242 0 3 0x6000082 wait syz-fuzzer 60839 155081 242 0 3 0x6000082 thrsleep syz-fuzzer 60839 43822 242 0 3 0x6000082 kqread syz-fuzzer 60839 394311 242 0 3 0x6000082 wait syz-fuzzer 60839 314258 242 0 3 0x6000082 thrsleep syz-fuzzer 60839 76364 242 0 3 0x6000082 wait syz-fuzzer 60839 514437 242 0 3 0x6000082 wait syz-fuzzer 60839 110403 242 0 3 0x6000082 thrsleep syz-fuzzer 60839 409285 242 0 3 0x6000082 wait syz-fuzzer 60839 155252 242 0 3 0x6000082 wait syz-fuzzer 60839 101959 242 0 3 0x6000082 thrsleep syz-fuzzer 60839 492364 242 0 3 0x6000082 thrsleep syz-fuzzer 60839 254204 242 0 3 0x6000082 wait syz-fuzzer 242 250245 25384 0 3 0x10008a sigsusp ksh 25384 392436 25044 0 3 0x9a kqread sshd 30842 29552 1 0 3 0x100083 ttyin getty 25044 509421 1 0 3 0x88 kqread sshd 87297 381908 99916 73 3 0x1100090 kqread syslogd 99916 370598 1 0 3 0x100082 netio syslogd 67781 15779 1 0 3 0x100080 kqread resolvd 46955 121623 50304 77 3 0x100092 kqread dhcpleased 53766 366226 50304 77 3 0x100092 kqread dhcpleased 50304 303297 1 0 3 0x80 kqread dhcpleased 44061 231901 0 0 3 0x14200 bored smr 32924 123447 0 0 2 0x14200 zerothread 8921 124626 0 0 3 0x14200 aiodoned aiodoned 86495 318125 0 0 3 0x14200 syncer update 51824 286539 0 0 3 0x14200 cleaner cleaner 38527 172859 0 0 3 0x14200 reaper reaper 75331 478348 0 0 3 0x14200 pgdaemon pagedaemon 70348 496638 0 0 3 0x14200 bored viomb 12544 337930 0 0 3 0x40014200 acpi0 acpi0 93755 94567 0 0 3 0x40014200 idle1 28128 476549 0 0 3 0x14200 bored softnet3 25879 316143 0 0 3 0x14200 bored softnet2 98632 416130 0 0 3 0x14200 bored softnet1 75144 303872 0 0 3 0x14200 bored softnet0 97155 244507 0 0 3 0x14200 bored systqmp 70722 203842 0 0 3 0x14200 bored systq 29130 426456 0 0 3 0x14200 tmoslp softclockmp 75929 146958 0 0 3 0x40014200 tmoslp softclock 84703 96223 0 0 3 0x40014200 idle0 1 523708 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 94359 (syz-executor.5) thread 0xffff80002128b298 (435868) exclusive rrwlock inode r = 0 (0xfffffd806bdde708) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_makeinode+0xb2 sys/ufs/ufs/ufs_vnops.c:1817 #8 ufs_create+0x45 sys/ufs/ufs/ufs_vnops.c:151 #9 VOP_CREATE+0xc0 sys/kern/vfs_vops.c:103 #10 vn_open+0x27b sys/kern/vfs_vnops.c:116 #11 doopenat+0x26e sys/kern/vfs_syscalls.c:1126 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806991d5e8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 vn_open+0x17b sys/kern/vfs_vnops.c:107 #8 doopenat+0x26e sys/kern/vfs_syscalls.c:1126 #9 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #9 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #10 Xsyscall+0x128 Process 84349 (syz-executor.7) thread 0xffff8000212bc558 (85363) exclusive rrwlock inode r = 0 (0xfffffd806991d2b8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 uvn_io+0x317 sys/uvm/uvm_vnode.c:1263 #6 uvn_get+0x1df sys/uvm/uvm_vnode.c:1110 #7 uvm_fault_lower+0x361 sys/uvm/uvm_fault.c:1284 #8 uvm_fault+0x238 #9 kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279 #10 kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332 #11 alltraps_kern_meltdown+0x7b #12 _copyin+0x57 #13 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #14 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d23a40) #0 witness_lock+0x447 #1 uvn_io+0x2f0 sys/uvm/uvm_vnode.c:1262 #2 uvn_get+0x1df sys/uvm/uvm_vnode.c:1110 #3 uvm_fault_lower+0x361 sys/uvm/uvm_fault.c:1284 #4 uvm_fault+0x238 #5 kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279 #6 kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332 #7 alltraps_kern_meltdown+0x7b #8 _copyin+0x57 #9 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #9 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #10 Xsyscall+0x128 Process 75305 (syz-executor.0) thread 0xffff80002128b540 (183431) exclusive rrwlock inode r = 0 (0xfffffd806bddec58) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bdde3d8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 12767 (syz-executor.4) thread 0xffff80002128ad48 (497859) exclusive rrwlock inode r = 0 (0xfffffd806bddeb48) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bc99810) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10188 6409K 6420K 78643K 11275 0 pcb 13 10K 12K 78643K 15 0 rtable 240 6K 7K 78643K 525 0 pf 29 8K 8K 78643K 35 0 ifaddr 44 15K 15K 78643K 58 0 ifgroup 50 2K 2K 78643K 62 0 counters 60 35K 35K 78643K 66 0 ioctlops 0 0K 2K 78643K 71 0 iov 0 0K 16K 78643K 411 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1278 80K 80K 78643K 1580 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 5K 78643K 42 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 22 81K 117K 78643K 2653 0 sigio 0 0K 0K 78643K 49 0 proc 57 90K 103K 78643K 681 0 subproc 104 6K 6K 78643K 143 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 127 0 in_multi 99 7K 7K 78643K 139 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 1K 78643K 629 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 362 87K 92K 78643K 28339 0 UVM aobj 131 8K 8K 78643K 144 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 38 0 NDP 11 0K 2K 78643K 36 0 temp 74 5924K 6052K 78643K 10187 0 kqueue 12 18K 28K 78643K 186 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 169 0 166 1 0 1 1 0 8 0 rtentry 112 152 0 39 4 0 4 4 0 8 0 unpcb 144 1983 0 1970 17 15 2 6 0 8 1 syncache 312 26 0 26 5 4 1 1 0 8 1 tcpqe 32 175 0 175 5 5 0 1 0 8 0 tcpcb 808 1436 0 1355 52 34 18 18 0 8 7 arp 120 25 0 6 1 0 1 1 0 8 0 ipq 40 3 0 2 2 1 1 1 0 8 0 ipqe 40 24 0 23 2 1 1 1 0 8 0 inpcb 368 2376 0 2289 51 34 17 22 0 8 6 nd6 136 40 0 14 1 0 1 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 604 0 147 29 0 29 29 0 8 0 art_table 32 605 0 147 4 0 4 4 0 8 0 art_node 16 151 0 48 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 141 0 13 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 5067 0 3621 91 0 91 91 0 8 0 ffsino 272 5068 0 3621 97 0 97 97 0 8 0 nchpl 144 9013 0 7371 63 0 63 63 0 8 0 uvmvnodes 80 5220 0 0 107 0 107 107 0 8 0 vnodes 216 5220 0 0 290 0 290 290 0 8 0 namei 1024 30847 0 30844 2 1 1 2 0 8 0 percpumem 16 46 0 3 1 0 1 1 0 8 0 kstatmem 264 28 0 6 2 0 2 2 0 8 0 scxspl 216 27701 0 27699 14 10 4 8 1 8 3 plimitpl 152 415 0 391 4 2 2 2 0 8 1 sigapl 424 2947 0 2895 7 0 7 7 0 8 0 futexpl 64 23633 0 23631 1 0 1 1 0 8 0 knotepl 120 112 0 0 4 0 4 4 0 8 0 kqueuepl 216 539 0 531 12 11 1 8 0 8 0 pipepl 320 677 0 646 14 11 3 8 0 8 0 fdescpl 496 2928 0 2895 7 1 6 6 0 8 0 filepl 152 18837 0 18528 39 23 16 19 0 8 1 lockfpl 104 331 0 329 1 0 1 1 0 8 0 lockfspl 48 132 0 130 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 39 0 23 1 0 1 1 0 8 0 ucredpl 104 1965 0 1947 1 0 1 1 0 8 0 zombiepl 144 2895 0 2895 1 0 1 1 0 8 1 processpl 1072 2947 0 2895 5 1 4 5 0 8 0 procpl 680 7478 0 7404 12 4 8 8 0 8 1 sosppl 168 24 0 24 2 1 1 1 0 8 1 sockpl 488 4670 0 4570 123 98 25 33 0 8 9 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 18 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 290 0 0 37 0 37 37 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 943 0 0 58 0 58 58 0 8 0 bufpl 288 7452 0 1130 452 0 452 452 0 8 0 anonpl 24 515865 0 504642 166 71 95 125 0 186 4 amapchunkpl 152 90032 0 89163 51 12 39 42 0 158 2 amappl16 200 15399 0 15111 101 72 29 45 0 8 13 amappl15 192 26 0 25 1 0 1 1 0 8 0 amappl14 184 160 0 149 2 1 1 2 0 8 0 amappl13 176 45 0 45 3 3 0 1 0 8 0 amappl12 168 3610 0 3572 2 0 2 2 0 8 0 amappl11 160 55 0 45 1 0 1 1 0 8 0 amappl10 152 41 0 30 1 0 1 1 0 8 0 amappl9 144 329 0 328 1 0 1 1 0 8 0 amappl8 136 310 0 233 3 0 3 3 0 8 0 amappl7 128 204 0 178 2 0 2 2 0 8 0 amappl6 120 340 0 330 1 0 1 1 0 8 0 amappl5 112 163 0 155 1 0 1 1 0 8 0 amappl4 104 496 0 472 2 1 1 2 0 8 0 amappl3 96 17185 0 17088 8 4 4 4 0 8 1 amappl2 88 3449 0 3373 3 1 2 3 0 8 0 amappl1 80 18581 0 18060 22 9 13 22 0 8 0 amappl 88 27701 0 27460 7 0 7 7 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 143 0 13 3 0 3 3 0 8 0 uaddrrnd 24 2928 0 2895 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2928 0 2895 1 0 1 1 0 8 0 vmmpekpl 168 28463 0 28398 4 0 4 4 0 8 0 vmmpepl 168 196207 0 193939 154 36 118 125 0 357 6 vmsppl 464 2927 0 2895 7 2 5 6 0 8 0 rwobjpl 56 63362 0 56706 102 4 98 98 0 8 0 pdppl 4096 5864 0 5790 184 102 82 92 0 8 8 pvpl 32 1138766 0 1121505 347 117 230 346 0 265 62 pmappl 248 2927 0 2895 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1087 0 181 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82bd8ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82d23838) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d23838) at __mp_lock+0x133 sys/kern/kern_lock.c:147 intr_handler(ffff80002e465070,ffff80000007bd80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7f75805301c0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff82bd8ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82d23838) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d23838) at __mp_lock+0x133 sys/kern/kern_lock.c:147 intr_handler(ffff80002e465070,ffff80000007bd80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7f75805301c0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at fifo_read+0x3b: movq 0(%rax),%rax fifo_read(ffff8000212acf90) at fifo_read+0x3b sys/miscfs/fifofs/fifo_vnops.c:240 VOP_READ(fffffd80729700f0,ffff8000212ad020,0,fffffd807f7d68f0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 uvn_io(fffffd80629bf128,ffff8000212ad130,1,202,0) at uvn_io+0x3a7 uvn_get(fffffd80629bf128,ffff000000000000,ffff8000212ad1f8,ffff8000212ad1c8,0,1,8f9d76a3f0796197,0) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1110 uvm_fault_lower(ffff8000212ad360,ffff8000212ad398,ffff8000212ad2e0,0) at uvm_fault_lower+0x361 sys/uvm/uvm_fault.c:1284 uvm_fault(fffffd806bc65b00,20000000,0,1) at uvm_fault+0x238 kpageflttrap(ffff8000212ad500,20000080) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff8000212ad500) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff8000212ad7a0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212ad7a0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8ad6bbf4cc0, count: 3 ddb{1}> trace fifo_read(ffff8000212acf90) at fifo_read+0x3b sys/miscfs/fifofs/fifo_vnops.c:240 VOP_READ(fffffd80729700f0,ffff8000212ad020,0,fffffd807f7d68f0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 uvn_io(fffffd80629bf128,ffff8000212ad130,1,202,0) at uvn_io+0x3a7 uvn_get(fffffd80629bf128,ffff000000000000,ffff8000212ad1f8,ffff8000212ad1c8,0,1,8f9d76a3f0796197,0) at uvn_get+0x1df sys/uvm/uvm_vnode.c:1110 uvm_fault_lower(ffff8000212ad360,ffff8000212ad398,ffff8000212ad2e0,0) at uvm_fault_lower+0x361 sys/uvm/uvm_fault.c:1284 uvm_fault(fffffd806bc65b00,20000000,0,1) at uvm_fault+0x238 kpageflttrap(ffff8000212ad500,20000080) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff8000212ad500) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff8000212ad7a0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212ad7a0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8ad6bbf4cc0, count: -12