panic: mtx 0xffffffff839f8b38: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 327126 10090 32767 0x10 0x4000000 1 syz-executor * 46422 90918 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f57f1) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839f8b38) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839f8b38) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd800839cf58) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800839cf58) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800839cf58) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8061182a20,1000,ffff80003ac31a98,ffff80003ac31a7c,0,2,29a4433024057e0c,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003ac31cb0,ffff80003ac31ce8,ffff80003ac31b30,ffff80003ac31b18) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003ac31cb0,ffff80003ac31ce8,ffff80003ac31c30) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd8072e2e3e0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003ac31e60,200000001040) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 kerntrap(ffff80003ac31e60) at kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 end trace frame: 0xffff80003ac32080, 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: mtx 0xffffffff839f8b38: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f57f1) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839f8b38) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839f8b38) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd800839cf58) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800839cf58) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800839cf58) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8061182a20,1000,ffff80003ac31a98,ffff80003ac31a7c,0,2,29a4433024057e0c,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003ac31cb0,ffff80003ac31ce8,ffff80003ac31b30,ffff80003ac31b18) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003ac31cb0,ffff80003ac31ce8,ffff80003ac31c30) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd8072e2e3e0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003ac31e60,200000001040) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 kerntrap(ffff80003ac31e60) at kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff80003ac32090) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac32090) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31bd4574fa0, count: -16 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003ac317d0 rbx 0xffffffff83868dd7 cpu_info_full_primary+0x2dd7 rdx 0 rcx 0xffff800037403738 rax 0xffffffff83867ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4959987fb170e5d0 r11 0xb6f246a1c2e780e9 r12 0xffffffff83868bd8 cpu_info_full_primary+0x2bd8 r13 0 r14 0 r15 0x1 rip 0xffffffff81f73f45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003ac317c0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=46422 pid=90918 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000374027d8,0xffff8000ffff14b0 process=0xffff800037406bb8 user=0xffff80003ac2d000, vmspace=0xfffffd8072e2e3e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10090 32537 14858 32767 2 0x10 syz-executor 10090 327126 14858 32767 7 0x4000010 syz-executor 63537 458616 71184 32767 2 0x10 syz-executor 63537 501507 71184 32767 2 0x4000010 syz-executor 63537 465272 71184 32767 2 0x4000010 syz-executor 90918 355881 54564 32767 2 0x10 syz-executor 90918 219266 54564 32767 3 0x4000010 biowait syz-executor *90918 46422 54564 32767 7 0x4000010 syz-executor 90918 389308 54564 32767 3 0x4000010 uobjlk syz-executor 99850 414998 75435 32767 2 0x10 syz-executor 99850 85794 75435 32767 3 0x4000090 fsleep syz-executor 46955 127122 23139 32767 2 0x10 syz-executor 46955 67534 23139 32767 3 0x4000090 fsleep syz-executor 46955 152981 23139 32767 3 0x4000090 fsleep syz-executor 98728 173527 99757 32767 2 0x10 syz-executor 98728 496832 99757 32767 3 0x4000090 piperd syz-executor 96522 407422 80346 32767 2 0x10 syz-executor 96522 106584 80346 32767 3 0x4000090 kqsel syz-executor 70687 20215 0 0 3 0x14200 bored sosplice 75435 180211 17364 32767 3 0x90 nanoslp syz-executor 71184 493718 75437 32767 3 0x90 nanoslp syz-executor 56762 56909 40632 32767 2 0x10 syz-executor 14858 96953 6031 32767 3 0x90 nanoslp syz-executor 99757 54412 89980 32767 3 0x90 nanoslp syz-executor 54564 139732 25948 32767 3 0x90 nanoslp syz-executor 23139 246750 8663 32767 3 0x90 nanoslp syz-executor 80346 335686 9463 32767 3 0x90 nanoslp syz-executor 40632 96827 67685 0 3 0x82 wait syz-executor 75437 237147 67685 0 3 0x82 wait syz-executor 89980 406973 67685 0 3 0x82 wait syz-executor 6031 180795 67685 0 3 0x82 wait syz-executor 17364 66535 67685 0 3 0x82 wait syz-executor 25948 139611 67685 0 3 0x82 wait syz-executor 8663 228780 67685 0 3 0x82 wait syz-executor 9463 244442 67685 0 3 0x82 wait syz-executor 67685 126536 35005 0 3 0x82 kqread syz-executor 35005 12758 33155 0 3 0x10008a sigsusp ksh 33155 371305 4785 0 3 0x98 kqread sshd-session 4785 245050 38538 0 3 0x92 kqread sshd-session 3532 254916 1 0 3 0x100083 ttyin getty 38538 82624 1 0 3 0x88 kqread sshd 10307 96068 91316 73 3 0x1100090 kqread syslogd 91316 193856 1 0 3 0x100082 sbwait syslogd 79955 468302 1 0 3 0x100080 kqread resolvd 13330 178718 39486 77 3 0x100092 kqread dhcpleased 29978 31702 39486 77 3 0x100092 kqread dhcpleased 39486 419255 1 0 3 0x80 kqread dhcpleased 75390 522717 0 0 3 0x14200 bored smr 39089 448739 0 0 2 0x14200 zerothread 98059 42366 0 0 3 0x14200 aiodoned aiodoned 31607 310570 0 0 3 0x14200 syncer update 438 49563 0 0 3 0x14200 cleaner cleaner 64172 69762 0 0 3 0x14200 reaper reaper 15786 271150 0 0 3 0x14200 pgdaemon pagedaemon 96280 506379 0 0 3 0x14200 bored viomb 68416 62064 0 0 3 0x40014200 acpi0 acpi0 16238 4932 0 0 3 0x40014200 idle1 59097 224670 0 0 3 0x14200 bored softnet3 5000 91506 0 0 3 0x14200 bored softnet2 51890 113253 0 0 3 0x14200 bored softnet1 95625 391051 0 0 3 0x14200 bored softnet0 14686 407029 0 0 3 0x14200 bored systqmp 51449 489417 0 0 3 0x14200 bored systq 44209 104628 0 0 3 0x14200 tmoslp softclockmp 57927 190482 0 0 3 0x40014200 tmoslp softclock 1563 204977 0 0 3 0x40014200 idle0 1 401795 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839f8b48) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 #8 kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 #9 alltraps_kern_meltdown+0x7b #10 copyout+0x57 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 Process 90918 (syz-executor) thread 0xffff800037402a68 (219266) exclusive rrwlock inode r = 0 (0xfffffd806c3880e0) #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+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c4 sys/kern/vfs_syscalls.c:2912 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 90918 (syz-executor) thread 0xffff800037403738 (46422) exclusive rwlock uobjlk r = 0 (0xfffffd805ecf1de8) #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+0x377 sys/kern/kern_rwlock.c:310 #2 uvn_io+0x667 sys/uvm/uvm_vnode.c:1297 #3 uvn_get+0x31d sys/uvm/uvm_vnode.c:1102 #4 uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 #8 kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 #9 alltraps_kern_meltdown+0x7b #10 copyout+0x57 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 exclusive rwlock fdlock r = 0 (0xffff8000fffeb8d0) #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+0x377 sys/kern/kern_rwlock.c:310 #2 sys_socketpair+0x2f5 sys/kern/uipc_syscalls.c:-1 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #4 Xsyscall+0x128 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839f8b48) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 #8 kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 #9 alltraps_kern_meltdown+0x7b #10 copyout+0x57 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 Process 90918 (syz-executor) thread 0xffff8000ffff1210 (389308) exclusive rwlock vmmaplk r = 0 (0xfffffd8072e2e4e0) #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+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_map_clean+0x11b sys/uvm/uvm_map.c:4366 #4 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a1d2d0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #1 syscall+0xae6 sys/arch/amd64/amd64/trap.c:748 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10193 10956K 10967K 166960K 11271 0 pcb 17 16K 18K 166960K 21 0 rtable 247 7K 7K 166960K 396 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 6 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 34 0 iov 0 0K 25K 166960K 24 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1366 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 23 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 26 97K 121K 166960K 394 0 sigio 0 0K 0K 166960K 8 0 proc 58 79K 115K 166960K 507 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 3 0K 0K 166960K 105 0 in_multi 99 7K 7K 166960K 108 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 368 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 278 181K 200K 166960K 5192 0 UVM aobj 17 2K 2K 166960K 17 0 pinsyscall 47 94K 108K 166960K 1411 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 23 0 NDP 11 0K 2K 166960K 27 0 temp 44 8676K 8740K 166960K 7028 0 kqueue 14 22K 29K 166960K 84 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 120 120 0 116 3 0 3 3 0 8 2 rtentry 176 116 0 1 6 0 6 6 0 8 0 unpcb 144 208 0 189 2 0 2 2 0 8 1 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 131 0 121 5 0 5 5 0 8 4 arp 128 20 0 0 1 0 1 1 0 8 0 inpcb 328 700 0 682 19 0 19 19 0 8 16 nd6 144 27 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 458 0 0 29 0 29 29 0 8 0 art_table 40 459 0 0 5 0 5 5 0 8 0 art_node 32 116 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 14 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1921 0 417 95 0 95 95 0 8 0 ffsino 288 1921 0 417 109 0 109 109 0 8 0 nchpl 144 2488 0 809 63 0 63 63 0 8 0 uvmvnodes 80 2002 0 0 41 0 41 41 0 8 0 vnodes 216 2002 0 0 112 0 112 112 0 8 0 namei 1024 8009 0 8009 2 0 2 2 0 8 2 percpumem 16 49 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 8237 0 8235 9 1 8 8 1 8 7 plimitpl 152 70 0 44 2 0 2 2 0 8 0 sigapl 424 670 0 613 7 0 7 7 0 8 0 knotepl 120 316 0 0 10 0 10 10 0 8 0 kqueuepl 224 106 0 95 1 0 1 1 0 8 0 pipepl 336 204 0 176 8 0 8 8 0 8 5 fdescpl 520 651 0 613 3 0 3 3 0 8 0 filepl 160 3745 0 3386 19 0 19 19 0 8 4 lockfpl 104 98 0 95 1 0 1 1 0 8 0 lockfspl 48 35 0 32 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 36 0 12 1 0 1 1 0 8 0 ucredpl 104 369 0 350 1 0 1 1 0 8 0 zombiepl 144 614 0 613 1 0 1 1 0 8 0 processpl 1240 670 0 613 5 0 5 5 0 8 0 procpl 656 1116 0 1048 7 0 7 7 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 728 1032 0 991 25 2 23 23 0 8 18 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 109 0 0 14 0 14 14 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 32 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 2536 0 0 159 0 159 159 0 8 0 bufpl 280 2764 0 117 190 0 190 190 0 8 0 anonpl 32 10177 0 0 84 1 83 84 0 246 0 amapchunkpl 152 17471 0 16801 39 0 39 39 0 158 12 amappl16 200 3371 0 3323 16 0 16 16 0 8 8 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 121 0 111 1 0 1 1 0 8 0 amappl13 176 6 0 6 2 1 1 1 0 8 1 amappl12 168 1253 0 1215 2 0 2 2 0 8 0 amappl11 160 53 0 43 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 18 0 16 1 0 1 1 0 8 0 amappl7 128 93 0 83 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 118 0 112 1 0 1 1 0 8 0 amappl4 104 300 0 282 1 0 1 1 0 8 0 amappl3 96 2936 0 2796 4 0 4 4 0 8 0 amappl2 88 647 0 587 2 0 2 2 0 8 0 amappl1 80 9815 0 9237 14 0 14 14 0 8 0 amappl 88 4498 0 4288 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 72 16 0 0 1 0 1 1 0 8 0 uaddrrnd 24 651 0 613 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 651 0 613 1 0 1 1 0 8 0 vmmpekpl 168 7343 0 7307 3 0 3 3 0 8 0 vmmpepl 168 49044 0 46836 114 0 114 114 0 357 16 vmsppl 480 650 0 613 7 1 6 6 0 8 0 rwobjpl 72 18960 0 16042 58 0 58 58 0 8 0 pdppl 4096 1309 0 1226 107 24 83 95 0 8 0 pvpl 32 18691 0 0 151 0 151 151 0 265 0 pmappl 256 650 0 613 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 547 0 27 15 0 15 15 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f57f1) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839f8b38) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839f8b38) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd800839cf58) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800839cf58) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800839cf58) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8061182a20,1000,ffff80003ac31a98,ffff80003ac31a7c,0,2,29a4433024057e0c,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003ac31cb0,ffff80003ac31ce8,ffff80003ac31b30,ffff80003ac31b18) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003ac31cb0,ffff80003ac31ce8,ffff80003ac31c30) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd8072e2e3e0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003ac31e60,200000001040) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 kerntrap(ffff80003ac31e60) at kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff80003ac32090) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac32090) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31bd4574fa0, count: -16 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 __mp_lock(ffffffff83a1d0c8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83a1d0c8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 doopenat(ffff8000ffff07d0,ffffff9c,9b34bfe4c97,10002,0,ffff80003c47e650) at doopenat+0x314 sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c47e700) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47e700) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b6475b6ed0, count: 8 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 __mp_lock(ffffffff83a1d0c8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83a1d0c8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 doopenat(ffff8000ffff07d0,ffffff9c,9b34bfe4c97,10002,0,ffff80003c47e650) at doopenat+0x314 sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c47e700) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47e700) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b6475b6ed0, count: -7