last executing test programs: 6.977737ms ago: executing program 7 (id=8): poll(&(0x7f0000000000)=[{}], 0x20000000000000fe, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) (async) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) (async) r0 = open(&(0x7f0000000000)='./file0\x00', 0x9cab835cfdc52675, 0x0) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x2, 0xa011, r0, 0x0) (async) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) setitimer(0x2, &(0x7f0000000000)={{0x3, 0x7}, {0x10}}, &(0x7f0000000040)) (async) open(&(0x7f0000000040)='./file0\x00', 0x18289, 0x7b) (async) r1 = socket$inet(0x2, 0x2, 0x0) getsockopt(r1, 0x0, 0x9, 0x0, 0x0) (async) munmap(&(0x7f00000ef000/0x11000)=nil, 0x11000) writev(r1, &(0x7f00000000c0)=[{&(0x7f0000000080)="b1140627efa62ede94e4ff67283b4356fc260f72f33c60fc54f75f", 0x1b}], 0x1) (async) munmap(&(0x7f000000e000/0x400000)=nil, 0x400000) 982.8µs ago: executing program 2 (id=3): r0 = open(&(0x7f0000000000)='./file0\x00', 0x9cab835cfdc52675, 0x0) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x2, 0xa011, r0, 0x0) (async) ftruncate(r0, 0x79c8) (async) getsockopt$sock_cred(0xffffffffffffffff, 0xffff, 0x1024, 0x0, &(0x7f0000001880)) (async) madvise(&(0x7f0000000000/0x2000)=nil, 0x2000, 0x4) madvise(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x4) (async) ioctl$WSMUXIO_LIST_DEVICES(0xffffffffffffffff, 0xc1045763, &(0x7f0000000040)={0x0, [{0x2, 0x800}, {}, {0x0, 0x7fff}, {}, {}, {0x0, 0x9}, {0x1}, {}, {0x0, 0x1}, {0x2, 0x1}, {}, {0x0, 0x6}, {0x3}, {}, {}, {0x0, 0x5}, {0x0, 0x1}, {0x1}, {0x0, 0x1}, {}, {}, {}, {0x0, 0x9}, {0x0, 0x9}, {}, {0x3, 0x800}, {}, {0x3}, {0x3}, {}, {0x2, 0x8001}, {0x0, 0x4}]}) (async) sysctl$kern(&(0x7f00000000c0)={0x1, 0x37}, 0x4, &(0x7f0000000100)="71f91e3471ac0058bc5a91501d94a34b8e5f84cf71b59c7afec37082", &(0x7f0000000140)=0x2c, 0x0, 0x2e) 0s ago: executing program 5 (id=6): sysctl$net_inet_tcp(&(0x7f0000000080)={0x4, 0x2, 0x6, 0x9}, 0x4, &(0x7f00000000c0), 0x0, 0x0, 0x0) fcntl$lock(0xffffffffffffffff, 0x0, &(0x7f0000000040)={0x0, 0x0, 0x5, 0x1}) semctl$SETALL(0x0, 0x0, 0x9, &(0x7f0000000040)=[0x7ff]) fcntl$lock(0xffffffffffffffff, 0x9, &(0x7f0000000000)={0x0, 0x1, 0x0, 0x300000001}) (async) fcntl$lock(0xffffffffffffffff, 0x9, &(0x7f0000000000)={0x0, 0x1, 0x0, 0x300000001}) syz_emit_ethernet(0x138, &(0x7f0000000000)=ANY=[@ANYBLOB="ff"]) (async) syz_emit_ethernet(0x138, &(0x7f0000000000)=ANY=[@ANYBLOB="ff"]) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) wait4(0xffffffffffffffff, 0x0, 0x0, 0x0) (async) wait4(0xffffffffffffffff, 0x0, 0x0, 0x0) socket(0x18, 0x1, 0x0) (async) r0 = socket(0x18, 0x1, 0x0) setsockopt(r0, 0x1000000029, 0xc, &(0x7f0000000000)="ebffcbff13b9fd812eaa4e713048e69931929648", 0x14) (async) setsockopt(r0, 0x1000000029, 0xc, &(0x7f0000000000)="ebffcbff13b9fd812eaa4e713048e69931929648", 0x14) setsockopt(r0, 0x1000000029, 0xc, &(0x7f0000000040)="ebffcbff13b9fd812eaa4e713048e69931929648", 0x14) (async) setsockopt(r0, 0x1000000029, 0xc, &(0x7f0000000040)="ebffcbff13b9fd812eaa4e713048e69931929648", 0x14) r1 = socket(0x20, 0x1, 0x8) setsockopt(r1, 0x1000000029, 0xc, &(0x7f0000000000)="ebffcbff13b9fd812eaa4e713048e69931929648", 0x14) mkdir(&(0x7f0000000040)='./file2\x00', 0xc1) unveil(&(0x7f0000000100)='./file2\x00', &(0x7f0000000340)='r\x00') r2 = geteuid() getsockopt$sock_cred(0xffffffffffffffff, 0xffff, 0x1022, &(0x7f0000000080)={0x0, 0x0, 0x0}, &(0x7f00000000c0)=0xc) setuid(r3) r5 = syz_open_pts() syz_open_pts() (async) r6 = syz_open_pts() r7 = fcntl$dupfd(r6, 0xa, r5) syz_open_pts() (async) syz_open_pts() syz_open_pts() getdents(r7, 0x0, 0x0) r8 = getgid() lchown(&(0x7f0000000180)='./file2\x00', 0x0, r8) r9 = shmget$private(0x0, 0x400000, 0x53c, &(0x7f0000000000/0x400000)=nil) r10 = getuid() shmctl$IPC_SET(r9, 0x1, &(0x7f0000000080)={{0x7, 0x0, 0x0, r10, 0x0, 0x10, 0xbb37}, 0xffffffff, 0xfffd, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff}) setreuid(r10, r2) (async) setreuid(r10, r2) chown(&(0x7f0000000140)='./file2\x00', r3, r4) (async) chown(&(0x7f0000000140)='./file2\x00', r3, r4) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.134' (ED25519) to the list of known hosts. panic: mtx 0xffffffff839a0190: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 8677 28781 0 0x100002 0x8 1 sh *418878 82771 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 panic(ffffffff833e6452) at panic+0x1e5 mtx_enter_try(ffffffff839a0190) at mtx_enter_try+0x1bf mtx_enter(ffffffff839a0190) at mtx_enter+0x60 uvm_pageclean(fffffd8008835e38) at uvm_pageclean+0x290 uvm_pagefree(fffffd8008835e38) at uvm_pagefree+0x26 uvn_get(fffffd806be31e40,0,ffff80003b808588,ffff80003b80856c,0,2,4aaa55f85461c,2) at uvn_get+0x68b uvm_fault_lower_io(ffff80003b8087a0,ffff80003b8087d8,ffff80003b808620,ffff80003b808608) at uvm_fault_lower_io+0x2d1 uvm_fault_lower(ffff80003b8087a0,ffff80003b8087d8,ffff80003b808720) at uvm_fault_lower+0x2bb uvm_fault(fffffd806c06f5c8,200000000000,0,2) at uvm_fault+0x278 upageflttrap(ffff80003b808930,200000000040) at upageflttrap+0xa9 usertrap(ffff80003b808930) at usertrap+0x2d8 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7c43da2cfa00, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: mtx 0xffffffff839a0190: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 panic(ffffffff833e6452) at panic+0x1e5 mtx_enter_try(ffffffff839a0190) at mtx_enter_try+0x1bf mtx_enter(ffffffff839a0190) at mtx_enter+0x60 uvm_pageclean(fffffd8008835e38) at uvm_pageclean+0x290 uvm_pagefree(fffffd8008835e38) at uvm_pagefree+0x26 uvn_get(fffffd806be31e40,0,ffff80003b808588,ffff80003b80856c,0,2,4aaa55f85461c,2) at uvn_get+0x68b uvm_fault_lower_io(ffff80003b8087a0,ffff80003b8087d8,ffff80003b808620,ffff80003b808608) at uvm_fault_lower_io+0x2d1 uvm_fault_lower(ffff80003b8087a0,ffff80003b8087d8,ffff80003b808720) at uvm_fault_lower+0x2bb uvm_fault(fffffd806c06f5c8,200000000000,0,2) at uvm_fault+0x278 upageflttrap(ffff80003b808930,200000000040) at upageflttrap+0xa9 usertrap(ffff80003b808930) at usertrap+0x2d8 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7c43da2cfa00, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003b8082d0 rbx 0xffffffff837d9dcf cpu_info_full_primary+0x2dcf rdx 0 rcx 0xffff8000fffe3738 rax 0xffffffff837d8ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xdf5819efdcbe656b r11 0x560844bf619b4d0f r12 0xffffffff837d9bd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff81e89085 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003b8082c0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=418878 pid=82771 tcnt=4 stat=onproc flags process=10 proc=0 runpri=51, usrpri=51, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe34a8,0xffff8000fffe3228 process=0xffff8000fffee558 user=0xffff80003b803000, vmspace=0xfffffd806c06f5c8 estcpu=1, cpticks=3, pctcpu=0.0, user=2, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39830 251413 28781 0 2 0x100000 sh 28781 8677 49838 0 7 0x10000a sh 96980 475679 59853 32767 2 0x10 syz-executor 96980 466011 59853 32767 3 0x4000090 fsleep syz-executor *82771 418878 57433 32767 7 0x10 syz-executor 82771 303350 57433 32767 3 0x4000090 fsleep syz-executor 82771 327789 57433 32767 3 0x4000010 biowait syz-executor 82771 381517 57433 32767 3 0x4000090 fsleep syz-executor 44451 49198 83209 32767 2 0x10 syz-executor 44451 200272 83209 32767 3 0x4000090 fsleep syz-executor 80647 520112 83650 0 2 0x2 ifconfig 83650 180829 16241 0 3 0x10008a sigsusp sh 16241 498973 80806 0 3 0x80 wait syz-executor 10930 130983 45590 0 2 0x100002 sh 54959 143676 82904 0 2 0x100002 sh 59853 494998 7080 32767 3 0x90 nanoslp syz-executor 49838 213232 65634 0 3 0x80 wait syz-executor 50488 216221 86907 0 2 0 syz-executor 45590 410953 97745 0 3 0x80 wait syz-executor 83209 209528 72093 32767 3 0x90 nanoslp syz-executor 82904 178076 50103 0 3 0x80 wait syz-executor 57433 423877 64311 32767 3 0x90 nanoslp syz-executor 72093 226207 72745 0 3 0x82 wait syz-executor 80806 464767 72745 0 3 0x82 wait syz-executor 7080 182340 72745 0 3 0x82 wait syz-executor 65634 356995 72745 0 3 0x82 wait syz-executor 86907 407060 72745 0 3 0x82 wait syz-executor 64311 227244 72745 0 3 0x82 wait syz-executor 50103 450868 72745 0 3 0x82 wait syz-executor 97745 478101 72745 0 3 0x82 wait syz-executor 72745 482828 48471 0 3 0x82 kqread syz-executor 48471 4447 8643 0 3 0x10008a sigsusp ksh 8643 219197 38533 0 3 0x98 kqread sshd-session 38533 52909 41227 0 3 0x92 kqread sshd-session 20912 87568 1 0 3 0x100083 ttyin getty 41227 288566 1 0 3 0x88 kqread sshd 32957 66467 33715 73 3 0x1100090 kqread syslogd 33715 392306 1 0 3 0x100082 sbwait syslogd 64571 337533 1 0 3 0x100080 kqread resolvd 75987 422093 89566 77 3 0x100092 kqread dhcpleased 87724 191981 89566 77 3 0x100092 kqread dhcpleased 89566 364520 1 0 3 0x80 kqread dhcpleased 40892 256494 0 0 3 0x14200 bored smr 3138 4137 0 0 2 0x14200 zerothread 77847 331081 0 0 3 0x14200 aiodoned aiodoned 6847 315038 0 0 3 0x14200 syncer update 39487 246808 0 0 3 0x14200 cleaner cleaner 63407 422657 0 0 3 0x14200 reaper reaper 10826 97339 0 0 3 0x14200 pgdaemon pagedaemon 73452 354033 0 0 3 0x14200 bored viomb 51221 383237 0 0 3 0x40014200 acpi0 acpi0 56242 78714 0 0 3 0x40014200 idle1 26990 247727 0 0 3 0x14200 bored softnet3 18590 263857 0 0 3 0x14200 bored softnet2 42278 62830 0 0 3 0x14200 bored softnet1 34056 286310 0 0 3 0x14200 bored softnet0 21350 320088 0 0 3 0x14200 bored systqmp 52037 290987 0 0 3 0x14200 bored systq 57137 500360 0 0 3 0x14200 tmoslp softclockmp 17673 285476 0 0 3 0x40014200 tmoslp softclock 89175 329388 0 0 3 0x40014200 idle0 1 479719 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 (0xffffffff839a01a0) #0 witness_lock+0x5bb #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 #3 uvn_get+0x679 #4 uvm_fault_lower_io+0x2d1 #5 uvm_fault_lower+0x2bb #6 uvm_fault+0x278 #7 upageflttrap+0xa9 #8 usertrap+0x2d8 #9 recall_trap+0x8 Process 28781 (sh) thread 0xffff8000fffeaf80 (8677) shared rwlock vmmaplk r = 0 (0xfffffd806c06f4e8) #0 witness_lock+0x5bb #1 rw_do_enter_read+0x3af #2 uvm_map_inentry_fix+0xd9 #3 uvm_map_inentry+0xf8 #4 usertrap+0x297 #5 recall_trap+0x8 Process 82771 (syz-executor) thread 0xffff8000fffe3738 (418878) exclusive rwlock uobjlk r = 0 (0xfffffd806befaf58) #0 witness_lock+0x5bb #1 rw_do_enter_write+0x3ea #2 uvn_io+0x667 #3 uvn_get+0x31d #4 uvm_fault_lower_io+0x2d1 #5 uvm_fault_lower+0x2bb #6 uvm_fault+0x278 #7 upageflttrap+0xa9 #8 usertrap+0x2d8 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839a01a0) #0 witness_lock+0x5bb #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 #3 uvn_get+0x679 #4 uvm_fault_lower_io+0x2d1 #5 uvm_fault_lower+0x2bb #6 uvm_fault+0x278 #7 upageflttrap+0xa9 #8 usertrap+0x2d8 #9 recall_trap+0x8 Process 82771 (syz-executor) thread 0xffff8000ffff07c8 (327789) exclusive rrwlock inode r = 0 (0xfffffd806c986f78) #0 witness_lock+0x5bb #1 rw_do_enter_write+0x3ea #2 rrw_enter+0xc6 #3 VOP_LOCK+0xa6 #4 vn_lock+0xa4 #5 sys_ftruncate+0x1c4 #6 syscall+0xb08 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10174 10950K 10965K 166960K 11251 0 pcb 17 12K 12K 166960K 17 0 rtable 182 5K 5K 166960K 278 0 pf 29 16K 16K 166960K 29 0 ifaddr 34 5K 5K 166960K 36 0 ifgroup 46 2K 2K 166960K 46 0 sysctl 1 1K 1K 166960K 1 0 counters 62 36K 36K 166960K 62 0 ioctlops 0 0K 2K 166960K 26 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1350 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 27 101K 117K 166960K 125 0 proc 58 79K 140K 166960K 431 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 68 5K 5K 166960K 68 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 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 327 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 225 163K 168K 166960K 2739 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 48 96K 108K 166960K 1108 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 20 1K 1K 166960K 20 0 temp 34 8678K 8740K 166960K 3530 0 kqueue 14 22K 22K 166960K 23 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 31 0 28 1 0 1 1 0 8 0 rtentry 176 85 0 1 4 0 4 4 0 8 0 unpcb 144 31 0 16 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 7 0 3 1 0 1 1 0 8 0 arp 128 16 0 0 1 0 1 1 0 8 0 inpcb 384 51 0 44 2 0 2 2 0 8 1 nd6 144 14 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 256 328 0 0 21 0 21 21 0 8 0 art_table 32 329 0 0 3 0 3 3 0 8 0 art_node 16 84 0 7 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1538 0 40 94 0 94 94 0 8 0 ffsino 288 1538 0 40 107 0 107 107 0 8 0 nchpl 144 1717 0 45 62 0 62 62 0 8 0 uvmvnodes 80 1619 0 0 34 0 34 34 0 8 0 vnodes 216 1619 0 0 90 0 90 90 0 8 0 namei 1024 4907 0 4907 2 0 2 2 0 8 2 percpumem 16 46 0 0 1 0 1 1 0 8 0 kstatmem 264 20 0 0 2 0 2 2 0 8 0 scxspl 216 5605 0 5603 3 1 2 2 1 8 1 plimitpl 152 34 0 10 1 0 1 1 0 8 0 sigapl 424 404 0 347 7 0 7 7 0 8 0 futexpl 64 9 0 5 1 0 1 1 0 8 0 knotepl 120 302 0 0 10 0 10 10 0 8 0 kqueuepl 224 19 0 9 1 0 1 1 0 8 0 pipepl 336 98 0 71 3 0 3 3 0 8 0 fdescpl 520 386 0 347 3 0 3 3 0 8 0 filepl 160 1258 0 1054 9 0 9 9 0 8 0 lockfpl 104 7 0 4 1 0 1 1 0 8 0 lockfspl 48 5 0 2 1 0 1 1 0 8 0 sessionpl 144 21 0 5 1 0 1 1 0 8 0 pgrppl 48 29 0 5 1 0 1 1 0 8 0 ucredpl 104 72 0 58 1 0 1 1 0 8 0 zombiepl 144 347 0 347 1 0 1 1 0 8 1 processpl 1192 404 0 347 5 0 5 5 0 8 0 procpl 656 409 0 347 6 0 6 6 0 8 0 sockpl 728 113 0 88 3 0 3 3 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k 2048 15 0 0 2 0 2 2 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 155 0 0 10 0 10 10 0 8 0 bufpl 280 2210 0 117 150 0 150 150 0 8 0 anonpl 32 3787 0 0 31 0 31 31 0 246 0 amapchunkpl 152 7658 0 7213 18 0 18 18 0 158 0 amappl16 200 1978 0 1969 5 0 5 5 0 8 4 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 124 0 114 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 0 1 1 0 8 1 amappl12 168 965 0 928 2 0 2 2 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 0 1 1 0 8 1 amappl9 144 247 0 247 1 0 1 1 0 8 1 amappl8 136 21 0 20 1 0 1 1 0 8 0 amappl7 128 86 0 76 1 0 1 1 0 8 0 amappl6 120 167 0 158 1 0 1 1 0 8 0 amappl5 112 123 0 116 1 0 1 1 0 8 0 amappl4 104 274 0 259 1 0 1 1 0 8 0 amappl3 96 1127 0 1026 3 0 3 3 0 8 0 amappl2 88 584 0 527 2 0 2 2 0 8 0 amappl1 80 7553 0 6974 13 0 13 13 0 8 0 amappl 88 2142 0 1987 4 0 4 4 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 386 0 347 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 386 0 347 1 0 1 1 0 8 0 vmmpekpl 168 4731 0 4700 2 0 2 2 0 8 0 vmmpepl 168 31187 0 29189 90 0 90 90 0 357 1 vmsppl 480 385 0 347 7 1 6 6 0 8 0 rwobjpl 72 13179 0 10714 47 0 47 47 0 8 0 pdppl 4096 780 0 694 108 14 94 94 0 8 8 pvpl 32 8417 0 0 68 0 68 68 0 265 0 pmappl 256 385 0 347 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 376 0 17 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 panic(ffffffff833e6452) at panic+0x1e5 mtx_enter_try(ffffffff839a0190) at mtx_enter_try+0x1bf mtx_enter(ffffffff839a0190) at mtx_enter+0x60 uvm_pageclean(fffffd8008835e38) at uvm_pageclean+0x290 uvm_pagefree(fffffd8008835e38) at uvm_pagefree+0x26 uvn_get(fffffd806be31e40,0,ffff80003b808588,ffff80003b80856c,0,2,4aaa55f85461c,2) at uvn_get+0x68b uvm_fault_lower_io(ffff80003b8087a0,ffff80003b8087d8,ffff80003b808620,ffff80003b808608) at uvm_fault_lower_io+0x2d1 uvm_fault_lower(ffff80003b8087a0,ffff80003b8087d8,ffff80003b808720) at uvm_fault_lower+0x2bb uvm_fault(fffffd806c06f5c8,200000000000,0,2) at uvm_fault+0x278 upageflttrap(ffff80003b808930,200000000040) at upageflttrap+0xa9 usertrap(ffff80003b808930) at usertrap+0x2d8 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7c43da2cfa00, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 spllower(0) at spllower+0xb8 tsleep(ffffffff83a09c80,128,ffffffff8334bd2e,0) at tsleep+0x229 sys_sigsuspend(ffff8000fffeaf80,ffff80002ffcc6a0,ffff80002ffcc5f0) at sys_sigsuspend+0x95 syscall(ffff80002ffcc6a0) at syscall+0xbc6 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7834d33afda0, count: 7 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 spllower(0) at spllower+0xb8 tsleep(ffffffff83a09c80,128,ffffffff8334bd2e,0) at tsleep+0x229 sys_sigsuspend(ffff8000fffeaf80,ffff80002ffcc6a0,ffff80002ffcc5f0) at sys_sigsuspend+0x95 syscall(ffff80002ffcc6a0) at syscall+0xbc6 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7834d33afda0, count: -8