panic: mtx 0xffffffff839b0978: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *469190 99522 0 0 0 1 syz-executor 184080 29254 60928 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e45ef) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839b0978) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff839b0978) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80087b8098) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8068c0cdd8,0,ffff80002a382448,ffff80002a38242c,0,2,9d6dd83b7d233cca,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002a382660,ffff80002a382698,ffff80002a3824e0,ffff80002a3824c8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80002a382660,ffff80002a382698,ffff80002a3825e0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd8079e52b68,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a3827f0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a3827f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ad0ffc8a890, count: 2 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: mtx 0xffffffff839b0978: locking against myself ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e45ef) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839b0978) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff839b0978) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80087b8098) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8068c0cdd8,0,ffff80002a382448,ffff80002a38242c,0,2,9d6dd83b7d233cca,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002a382660,ffff80002a382698,ffff80002a3824e0,ffff80002a3824c8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80002a382660,ffff80002a382698,ffff80002a3825e0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd8079e52b68,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a3827f0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a3827f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ad0ffc8a890, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a382190 rbx 0xffff8000299dedcf rdx 0 rcx 0xffff8000ffff2530 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8c268a33bef617d6 r11 0x8b10a85c9fd52888 r12 0xffff8000299debd0 r13 0 r14 0 r15 0x1 rip 0xffffffff82be1335 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a382180 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=469190 pid=99522 tcnt=3 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff27c0,0xffff80002a2a5c58 process=0xffff80003c415c10 user=0xffff80002a37d000, vmspace=0xfffffd8079e52b68 estcpu=36, cpticks=1, pctcpu=0.0, user=1, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *99522 469190 33894 0 7 0 syz-executor 99522 3752 33894 0 3 0x4000000 biowait syz-executor 99522 216748 33894 0 3 0x4000080 fsleep syz-executor 69066 406 89189 0 2 0 syz-executor 69066 251844 89189 0 3 0x4000080 fsleep syz-executor 29405 103556 23792 0 2 0 syz-executor 29405 293540 23792 0 3 0x4000080 fsleep syz-executor 29254 184080 52459 60928 7 0x10 syz-executor 29254 137485 52459 60928 3 0x4000090 fsleep syz-executor 38341 296227 33781 0 2 0 syz-executor 38341 42726 33781 0 3 0x4000080 fsleep syz-executor 12422 6428 7353 0 3 0x3000 suspend syz-executor 12422 244005 7353 0 3 0x4081000 biowait syz-executor 33781 459327 51059 0 3 0x82 nanoslp syz-executor 52459 228823 51059 0 3 0x82 nanoslp syz-executor 9208 137055 51059 0 3 0x82 nanoslp syz-executor 89189 127809 51059 0 3 0x82 nanoslp syz-executor 11503 222288 51059 0 2 0x10000002 syz-executor 69616 452337 1 0 3 0x100083 ttyin getty 33894 6385 51059 0 3 0x82 nanoslp syz-executor 23792 81688 51059 0 3 0x82 nanoslp syz-executor 38470 282989 0 0 3 0x14200 bored sosplice 92546 314562 0 0 3 0x14280 nfsidl nfsio 89473 365974 0 0 3 0x14280 nfsidl nfsio 21322 318407 0 0 3 0x14280 nfsidl nfsio 33082 83712 0 0 3 0x14280 nfsidl nfsio 36454 461507 0 0 3 0x14280 nfsidl nfsio 99669 374820 0 0 3 0x14280 nfsidl nfsio 38377 504142 0 0 3 0x14280 nfsidl nfsio 19759 137812 0 0 3 0x14280 nfsidl nfsio 88975 273773 0 0 3 0x14280 nfsidl nfsio 94961 389167 0 0 3 0x14280 nfsidl nfsio 43566 143641 0 0 3 0x14280 nfsidl nfsio 57398 357333 0 0 3 0x14280 nfsidl nfsio 33485 140924 0 0 3 0x14280 nfsidl nfsio 93844 158322 0 0 3 0x14280 nfsidl nfsio 72610 502976 0 0 3 0x14280 nfsidl nfsio 44445 489136 0 0 3 0x14280 nfsidl nfsio 84913 104627 0 0 3 0x14280 nfsidl nfsio 30254 373336 0 0 3 0x14280 nfsidl nfsio 51125 445767 0 0 3 0x14280 nfsidl nfsio 55994 132218 0 0 3 0x14280 nfsidl nfsio 7353 426178 51059 0 3 0x82 wait syz-executor 51059 450314 35486 0 3 0x82 kqread syz-executor 35486 441529 70766 0 3 0x10008a sigsusp ksh 70766 85660 9590 0 3 0x98 kqread sshd-session 9590 431456 42999 0 3 0x92 kqread sshd-session 42999 188367 1 0 3 0x88 kqread sshd 7704 352993 48885 74 3 0x1100092 bpf pflogd 48885 225782 1 0 3 0x80 sbwait pflogd 31145 171637 5515 73 3 0x1100090 kqread syslogd 5515 263043 1 0 3 0x100082 sbwait syslogd 40790 175070 1 0 3 0x100080 kqread resolvd 27350 130087 79496 77 3 0x100092 kqread dhcpleased 19702 298327 79496 77 3 0x100092 kqread dhcpleased 79496 321157 1 0 3 0x80 kqread dhcpleased 66065 88085 0 0 3 0x14200 bored smr 74468 290082 0 0 2 0x14200 zerothread 31190 104794 0 0 3 0x14200 aiodoned aiodoned 99215 506244 0 0 3 0x14200 syncer update 2628 36249 0 0 3 0x14200 cleaner cleaner 19107 411951 0 0 3 0x14200 reaper reaper 44686 68349 0 0 3 0x14200 pgdaemon pagedaemon 45413 519594 0 0 3 0x14200 bored viomb 97708 171392 0 0 3 0x40014200 acpi0 acpi0 98235 304245 0 0 3 0x40014200 idle1 66233 154099 0 0 3 0x14200 bored softnet3 64807 435648 0 0 3 0x14200 bored softnet2 34373 37696 0 0 3 0x14200 bored softnet1 46600 300717 0 0 3 0x14200 bored softnet0 70052 357461 0 0 3 0x14200 bored systqmp 6139 41720 0 0 3 0x14200 bored systq 97921 126591 0 0 3 0x14200 tmoslp softclockmp 20532 139162 0 0 3 0x40014200 tmoslp softclock 97486 480129 0 0 3 0x40014200 idle0 1 194515 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839b0988) #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+0x2d1 sys/uvm/uvm_fault.c:1651 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 99522 (syz-executor) thread 0xffff8000ffff2530 (469190) Process 99522 (syz-executor) thread 0xffff80002a2a5c48 (3752) Process 99522 (syz-executor) thread 0xffff8000ffffca48 (216748) Process 12422 (syz-executor) thread 0xffff80002a2a4538 (244005) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10244 11188K 11500K 166960K 14169 0 pcb 17 16K 17K 166960K 449 0 rtable 162 10K 11K 166960K 809 0 pf 45 19K 83K 166960K 192 0 ifaddr 34 5K 7K 166960K 145 0 ifgroup 66 2K 3K 166960K 215 0 sysctl 4 1K 1K 166960K 4 0 counters 72 37K 37K 166960K 202 0 ioctlops 0 0K 4K 166960K 1828 0 iov 0 0K 28K 166960K 142 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1426 90K 90K 166960K 3108 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 37 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 198 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 1954 0 sigio 0 0K 0K 166960K 113 0 proc 72 91K 140K 166960K 997 0 subproc 72 4K 4K 166960K 162 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 4 0K 0K 166960K 216 0 in_multi 53 4K 7K 166960K 265 0 ether_multi 1 0K 0K 166960K 25 0 mrt 1 0K 0K 166960K 19 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 758 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 237 160K 175K 166960K 18837 0 UVM aobj 34 2K 2K 166960K 38 0 pinsyscall 42 84K 104K 166960K 3299 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 1K 166960K 94 0 NDP 15 0K 2K 166960K 103 0 temp 78 8692K 8780K 166960K 81316 0 kqueue 13 20K 32K 166960K 339 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 241 0 238 3 0 3 3 0 8 2 rtentry 176 258 0 197 6 0 6 6 0 8 2 unpcb 144 1134 0 1113 7 5 2 4 0 8 1 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 767 0 763 15 13 2 8 0 8 1 arp 128 42 0 29 1 0 1 1 0 8 0 inpcb 384 2152 0 2140 23 20 3 15 0 8 1 nd6 144 60 0 47 1 0 1 1 0 8 0 pkpcb 40 53 0 53 3 2 1 1 0 8 1 kcovpl 48 18 0 10 1 0 1 1 0 8 0 ppxss 1192 46 0 44 2 1 1 1 0 8 0 pppxif 1504 4 0 4 2 1 1 1 0 8 1 pfstscr 40 3 0 2 1 0 1 1 0 8 0 pffrag 232 9 0 4 1 0 1 1 0 482 0 pffrnode 88 9 0 4 1 0 1 1 0 8 0 pffrent 40 16 0 11 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0 pfrktable 1344 4 0 1 1 0 1 1 0 8 0 pfanchor 1288 2 0 1 1 0 1 1 0 8 0 pfstitem 24 115 0 40 1 0 1 1 0 8 0 pfstkey 128 250 0 174 3 0 3 3 0 8 0 pfstate 384 180 0 106 8 0 8 8 0 8 0 pfrule 1344 33 0 25 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 3 0 1 3 1 2 3 0 8 0 art_heap4 256 1101 0 853 35 13 22 31 0 8 2 art_table 32 1104 0 854 4 0 4 4 0 8 0 art_node 16 250 0 197 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 22 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 192 0 182 1 0 1 1 0 8 0 shmpl 112 35 0 4 1 0 1 1 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 4837 0 3319 96 0 96 96 0 8 0 ffsino 288 4837 0 3319 109 0 109 109 0 8 0 nchpl 144 7422 0 5703 65 0 65 65 0 8 0 rtmask 32 5 0 4 4 3 1 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 25813 0 25813 2 1 1 2 0 8 1 percpumem 16 116 0 65 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 134 0 104 3 0 3 3 0 8 0 scsiplug 72 8 0 8 3 2 1 1 0 8 1 scxspl 216 23424 0 23421 16 13 3 8 1 8 2 plimitpl 152 315 0 296 1 0 1 1 0 8 0 sigapl 424 2255 0 2184 9 0 9 9 0 8 0 futexpl 64 26336 0 26331 1 0 1 1 0 8 0 knotepl 120 554 0 0 17 0 17 17 0 8 0 kqueuepl 224 646 0 636 8 6 2 5 0 8 1 pipepl 336 515 0 488 16 13 3 8 0 8 0 fdescpl 520 2215 0 2184 3 0 3 3 0 8 0 filepl 160 14421 0 14190 26 10 16 18 0 8 3 lockfpl 104 648 0 645 2 0 2 2 0 8 1 lockfspl 48 195 0 192 1 0 1 1 0 8 0 sessionpl 144 34 0 25 1 0 1 1 0 8 0 pgrppl 48 151 0 134 1 0 1 1 0 8 0 ucredpl 104 2221 0 2206 1 0 1 1 0 8 0 zombiepl 144 2186 0 2184 1 0 1 1 0 8 0 processpl 1192 2255 0 2184 6 0 6 6 0 8 0 procpl 656 5241 0 5163 8 0 8 8 0 8 0 srpgc 96 28 0 28 3 2 1 1 0 8 1 sosppl 168 10 0 10 2 1 1 1 0 8 1 sockpl 728 3600 0 3564 27 18 9 15 0 8 5 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 44 0 0 5 1 4 5 0 8 0 mtagpl 96 38 0 0 1 0 1 1 0 8 0 mbufpl 256 1119 0 0 70 0 70 70 0 8 0 bufpl 280 8851 0 2709 439 0 439 439 0 8 0 anonpl 32 11731 0 0 96 1 95 95 0 246 0 amapchunkpl 152 62816 0 62327 42 12 30 30 0 158 5 amappl16 200 6944 0 6699 67 52 15 27 0 8 2 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 133 0 121 1 0 1 1 0 8 0 amappl13 176 77 0 77 1 1 0 1 0 8 0 amappl12 168 3023 0 2992 4 2 2 3 0 8 0 amappl11 160 53 0 39 1 0 1 1 0 8 0 amappl10 152 14 0 13 1 0 1 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 130 0 117 1 0 1 1 0 8 0 amappl6 120 277 0 274 1 0 1 1 0 8 0 amappl5 112 188 0 178 1 0 1 1 0 8 0 amappl4 104 359 0 339 1 0 1 1 0 8 0 amappl3 96 13051 0 12936 4 0 4 4 0 8 0 amappl2 88 781 0 716 2 0 2 2 0 8 0 amappl1 80 16626 0 16017 16 2 14 15 0 8 0 amappl 88 17648 0 17485 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 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 8 0 8 3 2 1 1 0 8 1 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 37 0 4 1 0 1 1 0 8 0 uaddrrnd 24 2215 0 2184 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2215 0 2184 1 0 1 1 0 8 0 vmmpekpl 168 18716 0 18656 4 0 4 4 0 8 0 vmmpepl 168 142507 0 140275 123 23 100 111 0 357 0 vmsppl 480 2214 0 2184 6 1 5 5 0 8 0 rwobjpl 72 43031 0 35913 133 3 130 130 0 8 0 pdppl 4096 4438 0 4368 112 40 72 86 0 8 2 pvpl 32 19330 0 0 156 0 156 156 0 265 0 pmappl 256 2214 0 2184 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 496 0 87 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837f7ff0) 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(ffffffff839cf538) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839cf538) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003c444f10,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff839cf538) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839cf538) at __mp_lock+0x192 sys/kern/kern_lock.c:144 uvm_fault(fffffd806bebe5b8,e86a03000,0,1) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:700 upageflttrap(ffff80003c4452a0,e86a03000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c4452a0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x74a7d5051690, count: 4 ddb{0}> trace x86_ipi_db(ffffffff837f7ff0) 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(ffffffff839cf538) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839cf538) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003c444f10,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff839cf538) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839cf538) at __mp_lock+0x192 sys/kern/kern_lock.c:144 uvm_fault(fffffd806bebe5b8,e86a03000,0,1) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:700 upageflttrap(ffff80003c4452a0,e86a03000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c4452a0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x74a7d5051690, count: -11 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e45ef) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839b0978) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff839b0978) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80087b8098) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8068c0cdd8,0,ffff80002a382448,ffff80002a38242c,0,2,9d6dd83b7d233cca,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002a382660,ffff80002a382698,ffff80002a3824e0,ffff80002a3824c8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80002a382660,ffff80002a382698,ffff80002a3825e0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd8079e52b68,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a3827f0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a3827f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ad0ffc8a890, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e45ef) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839b0978) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff839b0978) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80087b8098) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80087b8098) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8068c0cdd8,0,ffff80002a382448,ffff80002a38242c,0,2,9d6dd83b7d233cca,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002a382660,ffff80002a382698,ffff80002a3824e0,ffff80002a3824c8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80002a382660,ffff80002a382698,ffff80002a3825e0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd8079e52b68,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002a3827f0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a3827f0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ad0ffc8a890, count: -13