login: panic: acquiring blockable sleep lock with spinlock or critical section held (rwlock) kmmaplk Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *347058 82952 0 0 0x4000000 0K syz-executor.0 100183 77766 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8246f37b) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(ffffffff829d1190,1,0) at witness_checkorder+0x11eb sys/kern/subr_witness.c:833 rw_enter_read(ffffffff829d1180) at rw_enter_read+0x66 sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff8000222b2b90,0) at uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1701 uvm_fault_check(ffff8000222b2b90,ffff8000222b2bc8,ffff8000222b2bf0) at uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 uvm_fault(ffffffff829d1178,ffff8000254ad000,0,2) at uvm_fault+0x102 sys/uvm/uvm_fault.c:601 kpageflttrap(ffff8000222b2d20,ffff8000254adde8) at kpageflttrap+0x1fd sys/arch/amd64/amd64/trap.c:264 kerntrap(ffff8000222b2d20) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b memcpy() at memcpy+0x15 timeout_run(ffff8000ffff75d0) at timeout_run+0xd6 timeout_sync_leave sys/kern/kern_timeout.c:207 [inline] timeout_run(ffff8000ffff75d0) at timeout_run+0xd6 sys/kern/kern_timeout.c:680 softclock_process_tick_timeout(ffff8000ffff75d0,0) at softclock_process_tick_timeout+0x196 sys/kern/kern_timeout.c:725 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:756 end trace frame: 0xffff8000222b2f60, count: 0 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: acquiring blockable sleep lock with spinlock or critical section held (rwlock) kmmaplk ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8246f37b) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(ffffffff829d1190,1,0) at witness_checkorder+0x11eb sys/kern/subr_witness.c:833 rw_enter_read(ffffffff829d1180) at rw_enter_read+0x66 sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff8000222b2b90,0) at uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1701 uvm_fault_check(ffff8000222b2b90,ffff8000222b2bc8,ffff8000222b2bf0) at uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 uvm_fault(ffffffff829d1178,ffff8000254ad000,0,2) at uvm_fault+0x102 sys/uvm/uvm_fault.c:601 kpageflttrap(ffff8000222b2d20,ffff8000254adde8) at kpageflttrap+0x1fd sys/arch/amd64/amd64/trap.c:264 kerntrap(ffff8000222b2d20) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b memcpy() at memcpy+0x15 timeout_run(ffff8000ffff75d0) at timeout_run+0xd6 timeout_sync_leave sys/kern/kern_timeout.c:207 [inline] timeout_run(ffff8000ffff75d0) at timeout_run+0xd6 sys/kern/kern_timeout.c:680 softclock_process_tick_timeout(ffff8000ffff75d0,0) at softclock_process_tick_timeout+0x196 sys/kern/kern_timeout.c:725 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:756 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f pmap_enter(fffffd806e5432a8,53df40cf000,6351c000,3,22) at pmap_enter+0x76f pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] pmap_enter(fffffd806e5432a8,53df40cf000,6351c000,3,22) at pmap_enter+0x76f sys/arch/amd64/amd64/pmap.c:2848 uvm_fault_lower(ffff8000222b3290,ffff8000222b32c8,ffff8000222b3210,0) at uvm_fault_lower+0x6dd sys/uvm/uvm_fault.c:1461 uvm_fault(fffffd806f59e178,53df40cf000,0,2) at uvm_fault+0x240 sys/uvm/uvm_fault.c:638 upageflttrap(ffff8000222b3400,53df40cf000) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 usertrap(ffff8000222b3400) at usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x53d52052b80, count: -22 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000222b27f0 rbx 0xffffffff82793bff cpu_info_full_primary+0x2bff rdx 0x8b rcx 0x2 rax 0x5e r8 0xffffffff8147b7f4 kprintf+0x144 r9 0x1 r10 0xcfce46b3494b0588 r11 0xd1fb389a0c8b709e r12 0xffffffff82793a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff82177ed8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000222b27e0 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=347058 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff62b0,0xffffffff82842420 process=0xffff8000ffff8868 user=0xffff8000222ae000, vmspace=0xfffffd806f59e178 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82952 431335 8571 0 2 0 syz-executor.0 *82952 347058 8571 0 7 0x4000000 syz-executor.0 79289 464230 71667 0 2 0x482 syz-executor.1 8571 83768 71667 0 3 0x82 nanoslp syz-executor.0 71667 198472 67213 0 3 0x82 thrsleep syz-fuzzer 71667 182057 67213 0 3 0x4000082 thrsleep syz-fuzzer 71667 341570 67213 0 3 0x4000082 thrsleep syz-fuzzer 71667 372407 67213 0 3 0x4000082 thrsleep syz-fuzzer 71667 233652 67213 0 3 0x4000082 thrsleep syz-fuzzer 71667 391362 67213 0 3 0x4000082 thrsleep syz-fuzzer 71667 353855 67213 0 3 0x4000082 thrsleep syz-fuzzer 71667 472785 67213 0 3 0x4000082 kqread syz-fuzzer 67213 157375 7689 0 3 0x10008a sigsusp ksh 7689 71822 79870 0 3 0x9a select sshd 84644 496535 1 0 3 0x100083 ttyin getty 79870 172510 1 0 3 0x88 select sshd 97722 468887 13595 74 3 0x100092 bpf pflogd 13595 387600 1 0 3 0x80 netio pflogd 22110 420922 6472 73 3 0x100090 kqread syslogd 6472 56831 1 0 3 0x100082 netio syslogd 60654 474265 1 0 3 0x100080 kqread resolvd 65577 272389 37282 77 3 0x100092 kqread dhcpleased 62621 173075 37282 77 3 0x100092 kqread dhcpleased 37282 225591 1 0 3 0x80 kqread dhcpleased 17061 89779 0 0 3 0x14200 bored smr 35331 40334 0 0 2 0x14200 zerothread 22854 460380 0 0 3 0x14200 aiodoned aiodoned 20669 231638 0 0 3 0x14200 syncer update 53383 127526 0 0 3 0x14200 cleaner cleaner 77766 100183 0 0 7 0x14200 reaper 15999 241764 0 0 3 0x14200 pgdaemon pagedaemon 67509 44970 0 0 3 0x14200 bored crynlk 55040 497487 0 0 3 0x14200 bored crypto 53830 250356 0 0 3 0x14200 bored viomb 25133 158533 0 0 3 0x40014200 acpi0 acpi0 79187 181502 0 0 3 0x40014200 idle1 21775 433668 0 0 3 0x14200 bored softnet 61220 171250 0 0 3 0x14200 bored systqmp 66910 331592 0 0 3 0x14200 bored systq 85920 81882 0 0 3 0x40014200 bored softclock 23705 31463 0 0 3 0x40014200 idle0 1 305225 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex /syzkaller/managers/multicore/kernel/sys/dev/kcov.c:125 r = 0 (0xffffffff827e37b8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 kcov_remote_leave+0x1f sys/dev/kcov.c:674 #4 timeout_run+0xd6 timeout_sync_leave sys/kern/kern_timeout.c:207 [inline] #4 timeout_run+0xd6 sys/kern/kern_timeout.c:680 #5 softclock_process_tick_timeout+0x196 sys/kern/kern_timeout.c:725 #6 softclock+0x11a sys/kern/kern_timeout.c:756 #7 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 #8 Xsoftclock+0x1f #9 pmap_enter+0x76f pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] #9 pmap_enter+0x76f sys/arch/amd64/amd64/pmap.c:2848 #10 uvm_fault_lower+0x6dd sys/uvm/uvm_fault.c:1461 #11 uvm_fault+0x240 sys/uvm/uvm_fault.c:638 #12 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #13 usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 #14 recall_trap+0x8 shared mutex timeout r = 0 (0xffffffff827e35b0) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 timeout_run+0xb7 sys/kern/kern_timeout.c:674 #2 softclock_process_tick_timeout+0x196 sys/kern/kern_timeout.c:725 #3 softclock+0x11a sys/kern/kern_timeout.c:756 #4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 #5 Xsoftclock+0x1f #6 pmap_enter+0x76f pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] #6 pmap_enter+0x76f sys/arch/amd64/amd64/pmap.c:2848 #7 uvm_fault_lower+0x6dd sys/uvm/uvm_fault.c:1461 #8 uvm_fault+0x240 sys/uvm/uvm_fault.c:638 #9 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #10 usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 #11 recall_trap+0x8 CPU 1: exclusive mutex pvpl r = 0 (0xffffffff8298f650) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_put+0x8a sys/kern/subr_pool.c:799 #4 pmap_do_remove+0x606 sys/arch/amd64/amd64/pmap.c:1872 #5 uvm_map_teardown+0x195 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x195 sys/uvm/uvm_map.c:2744 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3656 #7 reaper+0x189 sys/kern/kern_exit.c:462 #8 proc_trampoline+0x1c Process 82952 (syz-executor.0) thread 0xffff8000ffff6fd0 (347058) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828dad40) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 uvm_fault+0x224 sys/uvm/uvm_fault.c:637 #2 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #3 usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 #4 recall_trap+0x8 exclusive rwlock amaplk r = 0 (0xfffffd8064e97710) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 uvm_fault_check+0x3d2 sys/uvm/uvm_fault.c:774 #2 uvm_fault+0x102 sys/uvm/uvm_fault.c:601 #3 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #4 usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806f59e190) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1701 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 #3 uvm_fault+0x102 sys/uvm/uvm_fault.c:601 #4 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #5 usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 #6 recall_trap+0x8 exclusive mutex /syzkaller/managers/multicore/kernel/sys/dev/kcov.c:125 r = 0 (0xffffffff827e37b8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 kcov_remote_leave+0x1f sys/dev/kcov.c:674 #4 timeout_run+0xd6 timeout_sync_leave sys/kern/kern_timeout.c:207 [inline] #4 timeout_run+0xd6 sys/kern/kern_timeout.c:680 #5 softclock_process_tick_timeout+0x196 sys/kern/kern_timeout.c:725 #6 softclock+0x11a sys/kern/kern_timeout.c:756 #7 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 #8 Xsoftclock+0x1f #9 pmap_enter+0x76f pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] #9 pmap_enter+0x76f sys/arch/amd64/amd64/pmap.c:2848 #10 uvm_fault_lower+0x6dd sys/uvm/uvm_fault.c:1461 #11 uvm_fault+0x240 sys/uvm/uvm_fault.c:638 #12 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #13 usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 #14 recall_trap+0x8 shared mutex timeout r = 0 (0xffffffff827e35b0) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 timeout_run+0xb7 sys/kern/kern_timeout.c:674 #2 softclock_process_tick_timeout+0x196 sys/kern/kern_timeout.c:725 #3 softclock+0x11a sys/kern/kern_timeout.c:756 #4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 #5 Xsoftclock+0x1f #6 pmap_enter+0x76f pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] #6 pmap_enter+0x76f sys/arch/amd64/amd64/pmap.c:2848 #7 uvm_fault_lower+0x6dd sys/uvm/uvm_fault.c:1461 #8 uvm_fault+0x240 sys/uvm/uvm_fault.c:638 #9 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #10 usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 #11 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10122 6474K 6483K 78643K 11215 0 pcb 13 8K 8K 78643K 13 0 rtable 106 3K 3K 78643K 172 0 ifaddr 44 10K 10K 78643K 45 0 counters 44 34K 34K 78643K 44 0 ioctlops 0 0K 4K 78643K 1481 0 iov 0 0K 0K 78643K 2 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 6 0 vnodes 1220 77K 77K 78643K 1226 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 44 0 sigio 0 0K 0K 78643K 1 0 proc 67 87K 99K 78643K 334 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 33 2K 2K 78643K 33 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 49 228K 228K 78643K 49 0 exec 0 0K 2K 78643K 404 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 322 35K 36K 78643K 2314 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 10 0 temp 66 4199K 4263K 78643K 2374 0 kqueue 10 14K 14K 78643K 10 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> 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 21 0 18 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 63 0 48 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 270 0 270 3 3 0 1 0 8 0 tcpcb 736 10 0 5 1 0 1 1 0 8 0 arp 120 6 0 0 1 0 1 1 0 8 0 inpcb 304 42 0 34 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 kcovpl 48 2 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 12 0 2 1 0 1 1 0 8 0 pfstkey 112 12 0 2 1 0 1 1 0 8 0 pfstate 320 12 0 2 1 0 1 1 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 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1450 0 38 89 0 89 89 0 8 0 ffsino 272 1450 0 38 95 0 95 95 0 8 0 nchpl 144 1687 0 67 61 0 61 61 0 8 0 uvmvnodes 72 1496 0 0 28 0 28 28 0 8 0 vnodes 224 1496 0 0 88 0 88 88 0 8 0 namei 1024 4740 0 4740 2 1 1 1 0 8 1 percpumem 16 34 0 0 1 0 1 1 0 8 0 scxspl 216 5066 0 5066 9 8 1 8 0 8 1 plimitpl 152 17 0 8 1 0 1 1 0 8 0 sigapl 424 294 0 260 5 0 5 5 0 8 0 futexpl 56 138 0 138 1 0 1 1 0 8 1 knotepl 112 50 0 0 2 0 2 2 0 8 0 kqueuepl 216 15 0 9 1 0 1 1 0 8 0 pipepl 336 85 0 75 2 0 2 2 0 8 1 fdescpl 496 278 0 260 3 0 3 3 0 8 0 filepl 152 1319 0 1207 6 0 6 6 0 8 1 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 78 0 66 1 0 1 1 0 8 0 zombiepl 144 260 0 259 2 1 1 1 0 8 0 processpl 1072 294 0 259 3 0 3 3 0 8 0 procpl 672 318 0 275 4 0 4 4 0 8 0 sockpl 480 126 0 100 5 0 5 5 0 8 1 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 191 0 0 24 0 24 24 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 243 0 0 16 0 16 16 0 8 0 bufpl 280 3441 0 134 237 0 237 237 0 8 0 anonpl 24 75325 0 38776 223 2 221 221 0 186 0 amapchunkpl 152 5692 0 4270 60 1 59 59 0 158 1 amappl16 200 1183 0 173 55 0 55 55 0 8 0 amappl14 184 4 0 2 1 0 1 1 0 8 0 amappl13 176 35 0 31 1 0 1 1 0 8 0 amappl12 168 17 0 13 1 0 1 1 0 8 0 amappl11 160 56 0 41 1 0 1 1 0 8 0 amappl10 152 52 0 44 1 0 1 1 0 8 0 amappl9 144 186 0 183 1 0 1 1 0 8 0 amappl8 136 378 0 341 2 0 2 2 0 8 0 amappl7 128 73 0 60 1 0 1 1 0 8 0 amappl6 120 134 0 121 1 0 1 1 0 8 0 amappl5 112 295 0 275 1 0 1 1 0 8 0 amappl4 104 576 0 548 1 0 1 1 0 8 0 amappl3 96 53 0 46 1 0 1 1 0 8 0 amappl2 88 476 0 421 2 0 2 2 0 8 0 amappl1 80 8069 0 7620 15 4 11 13 0 8 1 amappl 88 1989 0 1729 6 0 6 6 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 64 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 278 0 260 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 278 0 260 1 0 1 1 0 8 0 vmmpekpl 168 6642 0 6612 2 0 2 2 0 8 0 vmmpepl 168 31034 0 28540 156 1 155 155 0 357 45 vmsppl 368 277 0 259 2 0 2 2 0 8 0 rwobjpl 56 9081 0 7211 29 1 28 28 0 8 1 pdppl 4096 564 0 518 74 24 50 50 0 8 4 pvpl 32 200166 0 160456 332 3 329 329 0 265 2 pmappl 224 277 0 259 2 0 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 328 0 28 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8246f37b) at panic+0x177 sys/kern/subr_prf.c:202 witness_checkorder(ffffffff829d1190,1,0) at witness_checkorder+0x11eb sys/kern/subr_witness.c:833 rw_enter_read(ffffffff829d1180) at rw_enter_read+0x66 sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff8000222b2b90,0) at uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1701 uvm_fault_check(ffff8000222b2b90,ffff8000222b2bc8,ffff8000222b2bf0) at uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 uvm_fault(ffffffff829d1178,ffff8000254ad000,0,2) at uvm_fault+0x102 sys/uvm/uvm_fault.c:601 kpageflttrap(ffff8000222b2d20,ffff8000254adde8) at kpageflttrap+0x1fd sys/arch/amd64/amd64/trap.c:264 kerntrap(ffff8000222b2d20) at kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b memcpy() at memcpy+0x15 timeout_run(ffff8000ffff75d0) at timeout_run+0xd6 timeout_sync_leave sys/kern/kern_timeout.c:207 [inline] timeout_run(ffff8000ffff75d0) at timeout_run+0xd6 sys/kern/kern_timeout.c:680 softclock_process_tick_timeout(ffff8000ffff75d0,0) at softclock_process_tick_timeout+0x196 sys/kern/kern_timeout.c:725 softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:756 softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90 Xsoftclock() at Xsoftclock+0x1f pmap_enter(fffffd806e5432a8,53df40cf000,6351c000,3,22) at pmap_enter+0x76f pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] pmap_enter(fffffd806e5432a8,53df40cf000,6351c000,3,22) at pmap_enter+0x76f sys/arch/amd64/amd64/pmap.c:2848 uvm_fault_lower(ffff8000222b3290,ffff8000222b32c8,ffff8000222b3210,0) at uvm_fault_lower+0x6dd sys/uvm/uvm_fault.c:1461 uvm_fault(fffffd806f59e178,53df40cf000,0,2) at uvm_fault+0x240 sys/uvm/uvm_fault.c:638 upageflttrap(ffff8000222b3400,53df40cf000) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 usertrap(ffff8000222b3400) at usertrap+0x214 sys/arch/amd64/amd64/trap.c:403 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x53d52052b80, count: -22 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a 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+0x23 __mp_lock(ffffffff828dab38) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828dab38) at __mp_lock+0x129 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800021191860,1) at uvm_unmap_detach+0xfc sys/uvm/uvm_map.c:1586 uvm_map_teardown(fffffd806f59eb88) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2762 uvmspace_free(fffffd806f59eb88) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3656 reaper(ffff800021193a48) at reaper+0x189 sys/kern/kern_exit.c:462 end trace frame: 0x0, count: 7 ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a 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+0x23 __mp_lock(ffffffff828dab38) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828dab38) at __mp_lock+0x129 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800021191860,1) at uvm_unmap_detach+0xfc sys/uvm/uvm_map.c:1586 uvm_map_teardown(fffffd806f59eb88) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2762 uvmspace_free(fffffd806f59eb88) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3656 reaper(ffff800021193a48) at reaper+0x189 sys/kern/kern_exit.c:462 end trace frame: 0x0, count: -8