login: panic: mtx 0xffffffff838b8580: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *106886 97732 32767 0x10 0x4000000 0 syz-executor 331155 16504 0 0 0 1 sshd db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e0682) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838b8580) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838b8580) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008130dd0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008130dd0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008130dd0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8062576e10,1000,ffff80003c4df018,ffff80003c4deff4,0,2,5e88454acf8aeacb,ffff80003c4df270) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4df238,ffff80003c4df270,ffff80003c4df0a0,ffff80003c4df0a8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c4df238,ffff80003c4df270,ffff80003c4df1b0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806c0ab200,200000001000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003c4df3e0,200000001040) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80003c4df3e0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 end trace frame: 0xffff80003c4df600, 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 0xffffffff838b8580: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e0682) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838b8580) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838b8580) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008130dd0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008130dd0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008130dd0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8062576e10,1000,ffff80003c4df018,ffff80003c4deff4,0,2,5e88454acf8aeacb,ffff80003c4df270) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4df238,ffff80003c4df270,ffff80003c4df0a0,ffff80003c4df0a8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c4df238,ffff80003c4df270,ffff80003c4df1b0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806c0ab200,200000001000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003c4df3e0,200000001040) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80003c4df3e0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff80003c4df610) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4df610) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba08a35f000, count: -16 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4ded60 rbx 0xffffffff838a3dcf cpu_info_full_primary+0x2dcf rdx 0 rcx 0xffff80002a2c8018 rax 0xffffffff838a2ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa76133b524cd4d27 r11 0x27b77504083107fc r12 0xffffffff838a3bd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff822ff245 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4ded50 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=106886 pid=97732 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2c87c8,0xffff800037c0fc60 process=0xffff80003b02dc10 user=0xffff80003c4da000, vmspace=0xfffffd806c0ab200 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37624 210570 16504 0 2 0 sshd 97732 156928 65698 32767 2 0x10 syz-executor 97732 125325 65698 32767 3 0x4000010 biowait syz-executor *97732 106886 65698 32767 7 0x4000010 syz-executor 97732 355508 65698 32767 3 0x4000090 fsleep syz-executor 31521 85160 60062 32767 2 0x10 syz-executor 31521 300640 60062 32767 3 0x4000090 fsleep syz-executor 31521 121121 60062 32767 3 0x4000090 sbwait syz-executor 79145 324303 57412 32767 2 0x10 syz-executor 79145 467949 57412 32767 3 0x4000090 fsleep syz-executor 56292 30174 12083 32767 2 0x10 syz-executor 56292 444034 12083 32767 3 0x4000090 fsleep syz-executor 56292 406092 12083 32767 3 0x4000090 piperd syz-executor 56292 101682 12083 32767 3 0x4000090 fsleep syz-executor 10665 521832 17735 32767 2 0x10 syz-executor 10665 420457 17735 32767 3 0x4000090 kqsel syz-executor 10665 490699 17735 32767 3 0x4000090 kqsel syz-executor 10665 418381 17735 32767 3 0x4000090 fsleep syz-executor 28410 473744 49822 32767 2 0x10 syz-executor 28410 102118 49822 32767 3 0x4000090 fifor syz-executor 28410 238088 49822 32767 3 0x4000090 fsleep syz-executor 28410 268808 49822 32767 3 0x4000090 fifor syz-executor 51979 397302 63657 32767 3 0x90 nanoslp syz-executor 51979 246649 63657 32767 3 0x4000090 sbwait syz-executor 51979 177154 63657 32767 3 0x4000090 sbwait syz-executor 51979 33733 63657 32767 3 0x4000090 fsleep syz-executor 17289 388915 299 32767 3 0x90 nanoslp syz-executor 17289 370622 299 32767 3 0x4000090 fifor syz-executor 17289 21728 299 32767 3 0x4000090 fsleep syz-executor 17289 510440 299 32767 3 0x4000090 fifor syz-executor 17289 121942 299 32767 3 0x4000090 fsleep syz-executor 82669 110422 0 0 3 0x14200 bored sosplice 12083 238629 15017 32767 3 0x90 nanoslp syz-executor 57412 71126 32002 32767 3 0x90 nanoslp syz-executor 49822 145961 2420 32767 3 0x90 nanoslp syz-executor 17735 312207 6323 32767 3 0x90 nanoslp syz-executor 299 161573 17696 32767 3 0x90 nanoslp syz-executor 60062 109208 89816 32767 3 0x90 nanoslp syz-executor 63657 388356 69614 32767 3 0x90 nanoslp syz-executor 65698 333343 18326 32767 3 0x90 nanoslp syz-executor 32002 217774 61578 0 3 0x82 wait syz-executor 15017 477528 61578 0 3 0x82 wait syz-executor 89816 131902 61578 0 3 0x82 wait syz-executor 2420 449863 61578 0 3 0x82 wait syz-executor 17696 586 61578 0 3 0x82 wait syz-executor 6323 489054 61578 0 3 0x82 wait syz-executor 69614 277109 61578 0 3 0x82 wait syz-executor 18326 48294 61578 0 3 0x82 wait syz-executor 61578 445964 51186 0 3 0x82 kqread syz-executor 51186 115544 85537 0 3 0x10008a sigsusp ksh 85537 380071 90774 0 3 0x98 kqread sshd-session 90774 416448 16504 0 3 0x92 kqread sshd-session 51001 224482 1 0 3 0x100083 ttyin getty 16504 331155 1 0 7 0 sshd 79858 501587 88557 73 3 0x1100090 kqread syslogd 88557 378155 1 0 3 0x100082 sbwait syslogd 42836 241244 1 0 3 0x100080 kqread resolvd 13492 282965 72098 77 3 0x100092 kqread dhcpleased 5254 483578 72098 77 3 0x100092 kqread dhcpleased 72098 447076 1 0 3 0x80 kqread dhcpleased 91114 361213 0 0 3 0x14200 bored smr 59636 208425 0 0 2 0x14200 zerothread 16797 154953 0 0 3 0x14200 aiodoned aiodoned 91099 250189 0 0 3 0x14200 syncer update 65841 500319 0 0 3 0x14200 cleaner cleaner 96477 57920 0 0 3 0x14200 reaper reaper 97242 223028 0 0 3 0x14200 pgdaemon pagedaemon 17787 156104 0 0 3 0x14200 bored viomb 85480 204136 0 0 3 0x40014200 acpi0 acpi0 78648 199545 0 0 3 0x40014200 idle1 73827 400450 0 0 3 0x14200 bored softnet3 58806 518083 0 0 3 0x14200 bored softnet2 50223 104251 0 0 3 0x14200 bored softnet1 61308 516189 0 0 3 0x14200 bored softnet0 21566 219745 0 0 3 0x14200 bored systqmp 13163 142178 0 0 3 0x14200 bored systq 38220 471109 0 0 3 0x14200 tmoslp softclockmp 30203 134612 0 0 3 0x40014200 tmoslp softclock 43893 96277 0 0 3 0x40014200 idle0 1 110010 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 (0xffffffff838b8590) #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+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #8 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #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:577 #12 Xsyscall+0x128 Process 97732 (syz-executor) thread 0xffff80002a2c87c8 (125325) exclusive rrwlock inode r = 0 (0xfffffd806c6ed678) #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+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c4 sys/kern/vfs_syscalls.c:2920 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 97732 (syz-executor) thread 0xffff80002a2c8018 (106886) exclusive rwlock uobjlk r = 0 (0xfffffd806240c220) #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+0x3ea sys/kern/kern_rwlock.c:316 #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+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #8 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #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:577 #12 Xsyscall+0x128 exclusive rwlock fdlock r = 0 (0xffff800037c11ad8) #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+0x3ea sys/kern/kern_rwlock.c:316 #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:577 #4 Xsyscall+0x128 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff838b8590) #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+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #8 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #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:577 #12 Xsyscall+0x128 Process 16504 (sshd) thread 0xffff8000ffff3490 (331155) shared rwlock vmmaplk r = 0 (0xfffffd8009ed2c40) #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+0x3af sys/kern/kern_rwlock.c:405 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1860 #3 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:730 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:666 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10186 10954K 10965K 166960K 11263 0 pcb 17 12K 12K 166960K 17 0 rtable 242 6K 7K 166960K 361 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 3 1K 1K 166960K 3 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 16K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 84K 166960K 1359 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 26 97K 121K 166960K 244 0 sigio 0 0K 0K 166960K 2 0 proc 58 79K 115K 166960K 488 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 0 0K 0K 166960K 21 0 in_multi 99 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 1 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 359 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 296 169K 191K 166960K 3827 0 UVM aobj 9 2K 2K 166960K 9 0 pinsyscall 49 98K 112K 166960K 1288 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 11 0K 2K 166960K 27 0 temp 41 8679K 8743K 166960K 4172 0 kqueue 14 22K 24K 166960K 35 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 120 112 0 107 3 0 3 3 0 8 2 rtentry 176 115 0 1 6 0 6 6 0 8 0 unpcb 144 124 0 97 1 0 1 1 0 8 0 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 808 149 0 141 8 0 8 8 0 8 7 arp 128 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 1 1 0 1 1 0 8 0 inpcb 384 392 0 376 12 0 12 12 0 8 10 nd6 144 28 0 0 2 0 2 2 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 256 479 0 0 30 0 30 30 0 8 0 art_table 32 480 0 0 4 0 4 4 0 8 0 art_node 16 114 0 10 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 6 0 0 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1686 0 178 95 0 95 95 0 8 0 ffsino 288 1686 0 178 108 0 108 108 0 8 0 nchpl 144 2021 0 341 63 0 63 63 0 8 0 uvmvnodes 80 1767 0 0 37 0 37 37 0 8 0 vnodes 216 1767 0 0 99 0 99 99 0 8 0 namei 1024 6164 0 6164 2 0 2 2 0 8 2 percpumem 16 47 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6437 0 6435 3 1 2 2 1 8 1 plimitpl 152 49 0 24 2 0 2 2 0 8 1 sigapl 424 529 0 471 7 0 7 7 0 8 0 futexpl 64 1545 0 1535 1 0 1 1 0 8 0 knotepl 120 65 0 0 2 0 2 2 0 8 0 kqueuepl 224 111 0 98 5 0 5 5 0 8 4 pipepl 336 149 0 119 3 0 3 3 0 8 0 fdescpl 520 510 0 471 3 0 3 3 0 8 0 filepl 160 2487 0 2247 15 0 15 15 0 8 4 lockfpl 104 39 0 36 1 0 1 1 0 8 0 lockfspl 48 18 0 15 1 0 1 1 0 8 0 sessionpl 144 25 0 9 1 0 1 1 0 8 0 pgrppl 48 36 0 12 1 0 1 1 0 8 0 ucredpl 104 222 0 203 1 0 1 1 0 8 0 zombiepl 144 471 0 471 1 0 1 1 0 8 1 processpl 1192 529 0 471 5 0 5 5 0 8 0 procpl 656 716 0 636 7 0 7 7 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 728 629 0 581 13 0 13 13 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 190 0 0 12 0 12 12 0 8 0 bufpl 280 2411 0 116 164 0 164 164 0 8 0 anonpl 32 5472 0 0 45 0 45 45 0 246 0 amapchunkpl 152 11033 0 10354 32 0 32 32 0 158 5 amappl16 200 864 0 839 4 1 3 4 0 8 1 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 113 0 102 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 1116 0 1077 2 0 2 2 0 8 0 amappl11 160 106 0 96 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 277 0 277 1 1 0 1 0 8 0 amappl8 136 17 0 16 1 0 1 1 0 8 0 amappl7 128 95 0 85 1 0 1 1 0 8 0 amappl6 120 180 0 177 1 0 1 1 0 8 0 amappl5 112 110 0 104 1 0 1 1 0 8 0 amappl4 104 298 0 280 1 0 1 1 0 8 0 amappl3 96 1906 0 1751 4 0 4 4 0 8 0 amappl2 88 630 0 574 2 0 2 2 0 8 0 amappl1 80 9272 0 8642 15 0 15 15 0 8 1 amappl 88 3153 0 2925 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 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 510 0 471 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 510 0 471 1 0 1 1 0 8 0 vmmpekpl 168 6126 0 6083 3 0 3 3 0 8 0 vmmpepl 168 38829 0 36479 103 0 103 103 0 357 0 vmsppl 480 509 0 471 6 0 6 6 0 8 0 rwobjpl 72 14568 0 11877 51 0 51 51 0 8 0 pdppl 4096 1028 0 942 112 26 86 96 0 8 0 pvpl 32 12880 0 0 104 0 104 104 0 265 0 pmappl 256 509 0 471 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 403 0 28 11 0 11 11 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(ffffffff833e0682) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838b8580) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838b8580) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008130dd0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008130dd0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008130dd0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8062576e10,1000,ffff80003c4df018,ffff80003c4deff4,0,2,5e88454acf8aeacb,ffff80003c4df270) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4df238,ffff80003c4df270,ffff80003c4df0a0,ffff80003c4df0a8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c4df238,ffff80003c4df270,ffff80003c4df1b0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806c0ab200,200000001000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003c4df3e0,200000001040) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80003c4df3e0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff80003c4df610) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4df610) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba08a35f000, count: -16 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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 end of kernel end trace frame: 0x7c21b4520030, count: 12 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 end of kernel end trace frame: 0x7c21b4520030, count: -3