uvm_fault(0xfffffd806c2155b8, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *358398 70926 0 0x2000 0x4080000 0K syz-executor 191628 48564 0 0x1000 0x4080000 1 syz-executor ktrops(ffff8000ffff19c0,ffffffffffffffff,0,af82cb95,fffffd8065e5e3a0,fffffd80097fb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff19c0,ffffffffffffffff,0,af82cb95,fffffd8065e5e3a0,fffffd80097fb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8065e5e3a0,4,af82cb95,0,ffff8000ffff19c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8065e5e3a0,4,af82cb95,0,ffff8000ffff19c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff19c0,ffff8000380003c0,ffff800038000310) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000380003c0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000380003c0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x99347a95fc0, count: 10 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806c2155b8, 0xf, 0, 1) -> e ddb{0}> trace ktrops(ffff8000ffff19c0,ffffffffffffffff,0,af82cb95,fffffd8065e5e3a0,fffffd80097fb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff19c0,ffffffffffffffff,0,af82cb95,fffffd8065e5e3a0,fffffd80097fb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8065e5e3a0,4,af82cb95,0,ffff8000ffff19c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8065e5e3a0,4,af82cb95,0,ffff8000ffff19c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff19c0,ffff8000380003c0,ffff800038000310) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000380003c0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000380003c0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x99347a95fc0, count: -5 ddb{0}> show registers rdi 0xffff80002f7dd000 rsi 0x372e __ALIGN_SIZE+0x272e rbp 0xffff8000380000e0 rbx 0xfffffd80097fb5b0 rdx 0xffff80002f7dd000 rcx 0x372d __ALIGN_SIZE+0x272d rax 0xffffffff81c80523 ktrops+0x43 r8 0xfffffd8065e5e3a0 r9 0xfffffd80097fb5b0 r10 0xf4eade23d8584bf9 r11 0xe4f093e3f32aa9af r12 0xffff8000ffff19c0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xaf82cb95 rip 0xffffffff81c80538 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800038000060 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=358398 pid=70926 tcnt=5 stat=onproc flags process=2000 proc=4080000 runpri=17, usrpri=60, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000ffff0020 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff14a0,0xffff8000ffff0d00 process=0xffff80003c4178c0 user=0xffff800037ffb000, vmspace=0xfffffd806c2155b8 estcpu=10, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 59754 68329 13269 0 3 0x3000 suspend syz-executor 59754 340191 13269 0 2 0x4081080 syz-executor 54208 96081 71621 0 3 0x80 nanoslp syz-executor 54208 48080 71621 0 3 0x4000080 netcon syz-executor 54208 280626 71621 0 3 0x4000080 fsleep syz-executor 6659 108730 90494 0 2 0x2 syz-executor 70926 265261 19545 0 4 0x82000 syz-executor 70926 443870 19545 0 4 0x4082000 syz-executor *70926 358398 19545 0 7 0x4082000 syz-executor 70926 15466 19545 0 4 0x4082000 syz-executor 70926 170348 19545 0 3 0x4002000 suspend syz-executor 90485 377839 60237 0 2 0xc80 syz-executor 90485 16148 60237 0 3 0x4000080 fifor syz-executor 90485 262292 60237 0 3 0x4000080 fsleep syz-executor 48564 333287 22928 0 3 0x3000 suspend syz-executor 48564 191628 22928 0 7 0x4081000 syz-executor 47535 753 0 0 3 0x14200 bored sosplice 94534 78266 0 0 3 0x14200 acct acct 59633 285762 95831 0 3 0x100082 sbwait arp 95831 43210 93658 0 3 0x10008a sigsusp sh 13269 3611 90494 0 3 0x82 nanoslp syz-executor 84348 27892 90494 0 2 0x2 syz-executor 60237 418677 90494 0 3 0x82 nanoslp syz-executor 19545 448461 90494 0 2 0xc82 syz-executor 22928 136626 90494 0 3 0x82 nanoslp syz-executor 93658 308849 90494 0 3 0x82 wait syz-executor 71621 506919 90494 0 2 0xc82 syz-executor 90494 108143 34195 0 3 0x82 kqread syz-executor 34195 118205 27277 0 3 0x10008a sigsusp ksh 27277 224483 13571 0 3 0x98 kqread sshd-session 13571 490707 62255 0 3 0x92 kqread sshd-session 40526 400168 1 0 3 0x100083 ttyin getty 62255 181959 1 0 3 0x88 kqread sshd 28132 169881 23585 74 3 0x1100092 bpf pflogd 23585 127718 1 0 3 0x80 sbwait pflogd 2392 136662 56021 73 3 0x1100090 kqread syslogd 56021 125544 1 0 3 0x100082 sbwait syslogd 89934 348101 1 0 3 0x100080 kqread resolvd 95341 429043 58571 77 3 0x100092 kqread dhcpleased 85184 519065 58571 77 3 0x100092 kqread dhcpleased 58571 92542 1 0 3 0x80 kqread dhcpleased 86983 240217 0 0 2 0x40014200 smr 71646 98159 0 0 3 0x14200 pgzero zerothread 28355 397437 0 0 3 0x14200 aiodoned aiodoned 46580 242826 0 0 3 0x14200 syncer update 5855 75389 0 0 3 0x14200 cleaner cleaner 67657 376064 0 0 3 0x14200 reaper reaper 53349 320109 0 0 3 0x14200 pgdaemon pagedaemon 52013 89156 0 0 3 0x14200 bored viomb 29083 89604 0 0 3 0x40014200 acpi0 acpi0 60357 261865 0 0 3 0x40014200 idle1 19433 272181 0 0 3 0x14200 bored softnet3 52010 111974 0 0 3 0x14200 bored softnet2 73670 464932 0 0 3 0x14200 bored softnet1 41077 111909 0 0 2 0x14200 softnet0 93527 170129 0 0 3 0x14200 bored systqmp 32925 178818 0 0 3 0x14200 bored systq 28333 459455 0 0 3 0x14200 tmoslp softclockmp 38789 165163 0 0 3 0x40014200 tmoslp softclock 82448 43334 0 0 3 0x40014200 idle0 1 441957 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 6659 (syz-executor) thread 0xffff80003c430f88 (108730) exclusive rrwlock inode r = 0 (0xfffffd806cab9320) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f0e1e58) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 70926 (syz-executor) thread 0xffff8000ffff19c0 (358398) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8395e978) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:412 #4 biowait+0xc1 sys/kern/vfs_bio.c:1245 #5 bwrite+0x2e5 sys/kern/vfs_bio.c:757 #6 ffs_update+0x34f sys/ufs/ffs/ffs_inode.c:111 #7 ffs_truncate+0xcb6 sys/ufs/ffs/ffs_inode.c:-1 #8 ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 #9 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:498 #10 vrele+0x129 sys/kern/vfs_subr.c:844 #11 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #12 ktrops+0x271 sys/kern/kern_ktrace.c:573 #13 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] #13 doktrace+0x6dd sys/kern/kern_ktrace.c:517 #14 sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 #15 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #16 Xsyscall+0x128 Process 48564 (syz-executor) thread 0xffff80003c431c58 (191628) shared rwlock vmmaplk r = 0 (0xfffffd806c025e40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x36e sys/kern/kern_rwlock.c:398 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #6 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #7 alltraps_kern_meltdown+0x7b #8 copyout+0x57 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #10 Xsyscall+0x128 Process 84348 (syz-executor) thread 0xffff8000ffffd9a8 (27892) exclusive rrwlock inode r = 0 (0xfffffd806cab99e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_closefile+0x111 vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0x111 sys/kern/vfs_vnops.c:615 #6 fdrop+0x126 sys/kern/kern_descrip.c:1267 #7 closef+0x192 sys/kern/kern_descrip.c:1251 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10198 11023K 11236K 166960K 11459 0 pcb 17 12K 12K 166960K 41 0 rtable 205 11K 11K 166960K 359 0 pf 32 17K 18K 166960K 58 0 ifaddr 37 6K 7K 166960K 51 0 ifgroup 51 2K 2K 166960K 73 0 sysctl 3 1K 9K 166960K 8 0 counters 66 36K 37K 166960K 86 0 ioctlops 0 0K 4K 166960K 1504 0 iov 0 0K 16K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1374 86K 87K 166960K 1505 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 58K 97K 166960K 296 0 sigio 0 0K 0K 166960K 4 0 proc 72 91K 128K 166960K 531 0 subproc 63 3K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 23 0 in_multi 78 5K 6K 166960K 95 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 401 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 238 161K 182K 166960K 4404 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 43 86K 106K 166960K 1382 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 10 0 NDP 11 0K 1K 166960K 31 0 temp 46 8673K 8737K 166960K 6868 0 kqueue 15 24K 26K 166960K 60 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 42 0 38 1 0 1 1 0 8 0 rtentry 176 105 0 14 5 0 5 5 0 8 0 unpcb 144 178 0 159 2 0 2 2 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 64 0 53 2 0 2 2 0 8 0 arp 128 17 0 2 1 0 1 1 0 8 0 inpcb 384 259 0 244 8 0 8 8 0 8 6 nd6 144 21 0 3 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 0 1 1 0 8 1 ppxss 1192 6 0 6 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 24 0 0 1 0 1 1 0 8 0 pfstkey 128 24 0 0 1 0 1 1 0 8 0 pfstate 384 24 0 0 3 0 3 3 0 8 0 pfrule 1344 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 256 418 0 50 26 0 26 26 0 8 1 art_table 32 419 0 50 4 0 4 4 0 8 0 art_node 16 103 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1849 0 334 95 0 95 95 0 8 0 ffsino 288 1850 0 334 109 0 109 109 0 8 0 nchpl 144 2298 0 1762 63 31 32 63 0 8 8 uvmvnodes 80 2033 0 0 42 0 42 42 0 8 0 vnodes 216 2033 0 0 113 0 113 113 0 8 0 namei 1024 7051 0 7050 2 0 2 2 0 8 1 percpumem 16 58 0 10 1 0 1 1 0 8 0 kstatmem 264 36 0 12 2 0 2 2 0 8 0 scxspl 216 7163 0 7163 3 2 1 2 1 8 1 plimitpl 152 80 0 62 1 0 1 1 0 8 0 sigapl 424 599 0 548 7 0 7 7 0 8 0 knotepl 120 354 0 0 11 0 11 11 0 8 0 kqueuepl 224 111 0 99 3 0 3 3 0 8 2 pipepl 336 121 0 94 3 0 3 3 0 8 0 fdescpl 520 579 0 548 3 0 3 3 0 8 0 filepl 160 2598 0 2380 13 0 13 13 0 8 2 lockfpl 104 75 0 72 1 0 1 1 0 8 0 lockfspl 48 33 0 30 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 40 0 23 1 0 1 1 0 8 0 ucredpl 104 226 0 213 1 0 1 1 0 8 0 zombiepl 144 550 0 548 1 0 1 1 0 8 0 processpl 1208 599 0 548 5 0 5 5 0 8 0 procpl 656 905 0 844 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sockpl 728 485 0 447 10 0 10 10 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 110 0 0 14 0 14 14 0 8 0 mcl2k 2048 32 0 0 4 0 4 4 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 220 0 0 14 0 14 14 0 8 0 bufpl 280 2553 0 124 174 0 174 174 0 8 0 anonpl 32 7510 0 0 61 0 61 61 0 246 0 amapchunkpl 152 13550 0 13088 29 0 29 29 0 158 6 amappl16 200 2243 0 2072 11 2 9 9 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 120 0 107 1 0 1 1 0 8 0 amappl13 176 81 0 81 1 1 0 1 0 8 0 amappl12 168 1258 0 1227 3 1 2 2 0 8 0 amappl11 160 51 0 36 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 97 0 95 1 0 1 1 0 8 0 amappl7 128 108 0 95 1 0 1 1 0 8 0 amappl6 120 177 0 173 1 0 1 1 0 8 0 amappl5 112 121 0 112 1 0 1 1 0 8 0 amappl4 104 320 0 299 1 0 1 1 0 8 0 amappl3 96 2342 0 2237 5 1 4 4 0 8 0 amappl2 88 648 0 583 2 0 2 2 0 8 0 amappl1 80 9445 0 8819 15 0 15 15 0 8 0 amappl 88 3690 0 3531 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 579 0 548 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 579 0 548 1 0 1 1 0 8 0 vmmpekpl 168 6691 0 6647 3 0 3 3 0 8 0 vmmpepl 168 44135 0 42046 96 0 96 96 0 357 3 vmsppl 480 578 0 548 5 0 5 5 0 8 0 rwobjpl 72 16871 0 13730 58 0 58 58 0 8 0 pdppl 4096 1166 0 1096 102 26 76 88 0 8 6 pvpl 32 14991 0 0 121 0 121 121 0 265 0 pmappl 256 578 0 548 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 385 0 28 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff8000ffff19c0,ffffffffffffffff,0,af82cb95,fffffd8065e5e3a0,fffffd80097fb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff8000ffff19c0,ffffffffffffffff,0,af82cb95,fffffd8065e5e3a0,fffffd80097fb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8065e5e3a0,4,af82cb95,0,ffff8000ffff19c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8065e5e3a0,4,af82cb95,0,ffff8000ffff19c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff8000ffff19c0,ffff8000380003c0,ffff800038000310) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000380003c0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000380003c0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x99347a95fc0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_cmp8(a8893d0b000,944000) at __sanitizer_cov_trace_cmp8+0x3a sys/dev/kcov.c:213 uvm_map_lookup_entry(fffffd806c025d40,944000,ffff8000327e2138) at uvm_map_lookup_entry+0x120 uvm_map_entrybyaddr sys/uvm/uvm_map.c:528 [inline] uvm_map_lookup_entry(fffffd806c025d40,944000,ffff8000327e2138) at uvm_map_lookup_entry+0x120 sys/uvm/uvm_map.c:1565 uvmfault_lookup(ffff8000327e2110,0) at uvmfault_lookup+0x133 sys/uvm/uvm_fault.c:1924 uvm_fault_check(ffff8000327e2110,ffff8000327e2148,ffff8000327e2180,0) at uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 uvm_fault(fffffd806c025d40,944000,0,2) at uvm_fault+0x106 sys/uvm/uvm_fault.c:677 kpageflttrap(ffff8000327e22c0,944d80) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff8000327e22c0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff8000327e2710) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000327e2710) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa888ce6fba0, count: 1 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_cmp8(a8893d0b000,944000) at __sanitizer_cov_trace_cmp8+0x3a sys/dev/kcov.c:213 uvm_map_lookup_entry(fffffd806c025d40,944000,ffff8000327e2138) at uvm_map_lookup_entry+0x120 uvm_map_entrybyaddr sys/uvm/uvm_map.c:528 [inline] uvm_map_lookup_entry(fffffd806c025d40,944000,ffff8000327e2138) at uvm_map_lookup_entry+0x120 sys/uvm/uvm_map.c:1565 uvmfault_lookup(ffff8000327e2110,0) at uvmfault_lookup+0x133 sys/uvm/uvm_fault.c:1924 uvm_fault_check(ffff8000327e2110,ffff8000327e2148,ffff8000327e2180,0) at uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 uvm_fault(fffffd806c025d40,944000,0,2) at uvm_fault+0x106 sys/uvm/uvm_fault.c:677 kpageflttrap(ffff8000327e22c0,944d80) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff8000327e22c0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff8000327e2710) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000327e2710) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa888ce6fba0, count: -14