panic: mtx 0xffffffff839a0b80: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *512563 69772 32767 0x10 0 1 syz-executor 314697 69772 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833fa030) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839a0b80) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839a0b80) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80085283d0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805d41da70,0,ffff80003c4b15e8,ffff80003c4b15cc,0,2,e59b7dfa302d6f77,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1680,ffff80003c4b1668) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1780) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbd0d78,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4b1990,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4b1990) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x72b6becfec60, 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 0xffffffff839a0b80: locking against myself ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833fa030) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839a0b80) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839a0b80) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80085283d0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805d41da70,0,ffff80003c4b15e8,ffff80003c4b15cc,0,2,e59b7dfa302d6f77,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1680,ffff80003c4b1668) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1780) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbd0d78,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4b1990,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4b1990) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x72b6becfec60, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4b1320 rbx 0xffff8000299deddf rdx 0 rcx 0xffff80003b848548 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x83821b6cce57440a r11 0x8dedb9be3c84229 r12 0xffff8000299debe0 r13 0 r14 0 r15 0x1 rip 0xffffffff81bb2ae5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4b1310 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=512563 pid=69772 tcnt=4 stat=onproc flags process=10 proc=0 runpri=50, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003b849738,0xffff800035c287f0 process=0xffff800035c275d0 user=0xffff80003c4ac000, vmspace=0xfffffd806bbd0d78 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *69772 512563 68639 32767 7 0x10 syz-executor 69772 145725 68639 32767 2 0x4000010 syz-executor 69772 318995 68639 32767 2 0x4000010 syz-executor 69772 314697 68639 32767 7 0x4000010 syz-executor 91328 411335 44686 32767 2 0xc90 syz-executor 91328 523127 44686 32767 3 0x4000090 fsleep syz-executor 91328 306421 44686 32767 3 0x4000090 fsleep syz-executor 13711 360424 86687 32767 2 0xc90 syz-executor 13711 260398 86687 32767 3 0x4000090 lockf syz-executor 13711 201984 86687 32767 3 0x4000090 lockf syz-executor 13711 238875 86687 32767 3 0x4000090 fsleep syz-executor 1291 466639 26365 32767 3 0x90 nanoslp syz-executor 1291 382581 26365 32767 3 0x4000090 lockf syz-executor 1291 31568 26365 32767 3 0x4000090 msgwait syz-executor 1291 509590 26365 32767 3 0x4000090 fsleep syz-executor 50371 228733 72015 32767 3 0x90 nanoslp syz-executor 50371 476606 72015 32767 3 0x4000090 fifor syz-executor 50371 122446 72015 32767 3 0x4000090 fsleep syz-executor 84205 164258 91377 32767 2 0xc90 syz-executor 84205 384223 91377 32767 3 0x4000090 fsleep syz-executor 84205 443035 91377 32767 3 0x4000090 ttyout syz-executor 84205 242064 91377 32767 3 0x4000090 fsleep syz-executor 28433 415243 51083 32767 2 0xc90 syz-executor 28433 437867 51083 32767 3 0x4000090 netcon syz-executor 28433 278634 51083 32767 3 0x4000090 msgwait syz-executor 28433 300908 51083 32767 3 0x4000090 msgwait syz-executor 28433 296829 51083 32767 3 0x4000090 fsleep syz-executor 55695 386094 99134 32767 2 0xc90 syz-executor 55695 27608 99134 32767 3 0x4000090 kqsel syz-executor 55695 209388 99134 32767 3 0x4000090 fsleep syz-executor 80113 299442 40659 0 3 0x82 sbwait sshd-session 65870 191139 0 0 3 0x14200 bored sosplice 26365 4888 36041 32767 2 0xc90 syz-executor 72015 194158 15592 32767 2 0xc90 syz-executor 51083 441799 27934 32767 2 0xc90 syz-executor 91377 63120 99557 32767 2 0xc90 syz-executor 44686 305615 27006 32767 2 0xc90 syz-executor 86687 21545 4132 32767 2 0xc90 syz-executor 99134 459920 25876 32767 2 0xc90 syz-executor 68639 149775 90062 32767 3 0x90 nanoslp syz-executor 15592 235286 68703 0 3 0x82 wait syz-executor 36041 413331 68703 0 3 0x82 wait syz-executor 27934 506603 68703 0 3 0x82 wait syz-executor 27006 345801 68703 0 3 0x82 wait syz-executor 99557 66411 68703 0 3 0x82 wait syz-executor 4132 317964 68703 0 3 0x82 wait syz-executor 90062 297943 68703 0 3 0x82 wait syz-executor 25876 255200 68703 0 3 0x82 wait syz-executor 68703 223031 4230 0 3 0x82 kqread syz-executor 4230 411658 45535 0 3 0x10008a sigsusp ksh 45535 404066 33037 0 3 0x98 kqread sshd-session 33037 418271 40659 0 3 0x92 kqread sshd-session 18605 171331 1 0 3 0x100083 ttyin getty 40659 135560 1 0 3 0x88 kqread sshd 17205 122209 27046 73 3 0x1100090 kqread syslogd 27046 121139 1 0 3 0x100082 sbwait syslogd 47594 227812 1 0 3 0x100080 kqread resolvd 36557 115500 47972 77 3 0x100092 kqread dhcpleased 80645 5697 47972 77 3 0x100092 kqread dhcpleased 47972 136776 1 0 3 0x80 kqread dhcpleased 9746 84662 0 0 3 0x14200 bored smr 5999 340799 0 0 3 0x14200 pgzero zerothread 67977 31107 0 0 3 0x14200 aiodoned aiodoned 54613 354324 0 0 3 0x14200 syncer update 12117 40950 0 0 3 0x14200 cleaner cleaner 64182 423954 0 0 3 0x14200 reaper reaper 44728 501372 0 0 3 0x14200 pgdaemon pagedaemon 24787 269678 0 0 3 0x14200 bored viomb 39251 259282 0 0 3 0x40014200 acpi0 acpi0 19704 69614 0 0 3 0x40014200 idle1 66217 314920 0 0 3 0x14200 bored softnet7 24664 256198 0 0 3 0x14200 bored softnet6 27402 340409 0 0 3 0x14200 bored softnet5 62435 198682 0 0 3 0x14200 bored softnet4 97108 466170 0 0 3 0x14200 bored softnet3 25708 417083 0 0 3 0x14200 bored softnet2 49922 294644 0 0 3 0x14200 bored softnet1 20564 487625 0 0 3 0x14200 bored softnet0 56471 24053 0 0 3 0x14200 bored systqmp 30871 423545 0 0 3 0x14200 bored systq 49705 72550 0 0 3 0x14200 tmoslp softclockmp 75162 68784 0 0 2 0x40014200 softclock 14184 167223 0 0 3 0x40014200 idle0 1 172999 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839a0b90) #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 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 69772 (syz-executor) thread 0xffff80003b848548 (512563) exclusive rwlock uobjlk r = 0 (0xfffffd805e0932b0) #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+0x42b sys/kern/kern_rwlock.c:319 #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 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839a0b90) #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 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 69772 (syz-executor) thread 0xffff800035c299d0 (318995) exclusive rrwlock inode r = 0 (0xfffffd806b947b40) #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+0x42b sys/kern/kern_rwlock.c:319 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #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 69772 (syz-executor) thread 0xffff80002a2d4540 (314697) exclusive rwlock amaplk r = 0 (0xfffffd806bb74e38) #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+0x42b sys/kern/kern_rwlock.c:319 #2 uvm_fault_check+0x5a9 sys/uvm/uvm_fault.c:862 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806bbd0e78) #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+0x3e8 sys/kern/kern_rwlock.c:412 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 #7 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 10957K 10968K 166960K 11274 0 pcb 17 12K 12K 166960K 17 0 rtable 219 6K 6K 166960K 283 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 2 1K 9K 166960K 7 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 32 0 iov 0 0K 12K 166960K 24 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1390 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 28 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 26 97K 117K 166960K 399 0 sigio 1 0K 0K 166960K 8 0 proc 58 99K 131K 166960K 506 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 2 0K 0K 166960K 83 0 in_multi 99 7K 7K 166960K 109 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 448 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 306 186K 190K 166960K 5258 0 UVM aobj 17 2K 3K 166960K 19 0 pinsyscall 49 98K 108K 166960K 1441 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 27 0 NDP 11 0K 2K 166960K 27 0 temp 47 8676K 8741K 166960K 5471 0 kqueue 17 24K 31K 166960K 86 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 60 0 56 1 0 1 1 0 8 0 rtentry 176 103 0 2 5 0 5 5 0 8 0 unpcb 144 307 0 288 2 0 2 2 0 8 1 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 177 0 166 7 0 7 7 0 8 5 arp 128 12 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 498 0 476 7 0 7 7 0 8 4 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 144 22 0 1 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 256 472 0 10 29 0 29 29 0 8 0 art_table 40 473 0 10 5 0 5 5 0 8 0 art_node 32 103 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 5 1 0 1 1 0 8 0 semapl 112 26 0 16 1 0 1 1 0 8 0 shmpl 112 16 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1921 0 415 95 0 95 95 0 8 0 ffsino 296 1921 0 415 117 0 117 117 0 8 0 nchpl 144 2458 0 777 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 7800 0 7800 2 1 1 2 0 8 1 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 8543 0 8543 9 2 7 8 1 8 7 plimitpl 152 118 0 93 2 0 2 2 0 8 1 sigapl 424 688 0 626 8 0 8 8 0 8 0 knotepl 120 320 0 0 10 0 10 10 0 8 0 kqueuepl 224 104 0 90 2 0 2 2 0 8 1 pipepl 344 131 0 103 3 0 3 3 0 8 0 fdescpl 528 665 0 626 3 0 3 3 0 8 0 filepl 160 3258 0 3017 12 0 12 12 0 8 1 lockfpl 104 79 0 70 1 0 1 1 0 8 0 lockfspl 48 22 0 17 1 0 1 1 0 8 0 sessionpl 144 23 0 6 1 0 1 1 0 8 0 pgrppl 48 37 0 12 1 0 1 1 0 8 0 ucredpl 104 556 0 537 1 0 1 1 0 8 0 zombiepl 144 626 0 626 1 0 1 1 0 8 1 processpl 1248 688 0 626 7 1 6 6 0 8 0 procpl 656 1170 0 1086 7 0 7 7 0 8 0 sosppl 168 5 0 3 1 0 1 1 0 8 0 sockpl 752 870 0 825 11 0 11 11 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 108 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 1212 0 0 76 0 76 76 0 8 0 bufpl 280 3170 0 116 219 0 219 219 0 8 0 anonpl 32 11690 0 0 95 0 95 95 0 246 0 amapchunkpl 152 16409 0 15708 31 1 30 30 0 158 3 amappl16 200 3393 0 3366 29 14 15 27 0 8 12 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 108 0 97 1 0 1 1 0 8 0 amappl13 176 31 0 31 2 1 1 1 0 8 1 amappl12 168 1279 0 1240 2 0 2 2 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 30 0 30 1 1 0 1 0 8 0 amappl9 144 257 0 257 1 1 0 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 131 0 119 1 0 1 1 0 8 0 amappl6 120 195 0 191 1 0 1 1 0 8 0 amappl5 112 118 0 112 1 0 1 1 0 8 0 amappl4 104 283 0 266 1 0 1 1 0 8 0 amappl3 96 2954 0 2797 4 0 4 4 0 8 0 amappl2 88 627 0 567 2 0 2 2 0 8 0 amappl1 80 9403 0 8734 14 0 14 14 0 8 0 amappl 88 4561 0 4330 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 18 0 2 1 0 1 1 0 8 0 uaddrrnd 24 665 0 626 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 665 0 626 1 0 1 1 0 8 0 vmmpekpl 168 6925 0 6890 3 0 3 3 0 8 0 vmmpepl 168 49275 0 46918 115 0 115 115 0 357 12 vmsppl 488 664 0 626 7 1 6 6 0 8 1 rwobjpl 80 18602 0 15575 66 0 66 66 0 8 2 pdppl 4096 1337 0 1252 113 28 85 93 0 8 0 pvpl 32 19524 0 0 158 0 158 158 0 265 0 pmappl 256 664 0 626 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 355 0 33 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838bbff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc uvm_fault_lower(ffff80003c4f1c60,ffff80003c4f1c98,ffff80003c4f1be0) at uvm_fault_lower+0x675 sys/uvm/uvm_fault.c:1572 uvm_fault(fffffd806bbd0d78,bb4c4e86000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4f1df0,bb4c4e86000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4f1df0) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xbb425621630, count: 6 ddb{0}> trace x86_ipi_db(ffffffff838bbff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc uvm_fault_lower(ffff80003c4f1c60,ffff80003c4f1c98,ffff80003c4f1be0) at uvm_fault_lower+0x675 sys/uvm/uvm_fault.c:1572 uvm_fault(fffffd806bbd0d78,bb4c4e86000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4f1df0,bb4c4e86000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4f1df0) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xbb425621630, count: -9 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(ffffffff833fa030) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839a0b80) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839a0b80) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80085283d0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805d41da70,0,ffff80003c4b15e8,ffff80003c4b15cc,0,2,e59b7dfa302d6f77,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1680,ffff80003c4b1668) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1780) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbd0d78,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4b1990,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4b1990) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x72b6becfec60, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833fa030) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839a0b80) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839a0b80) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80085283d0) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80085283d0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805d41da70,0,ffff80003c4b15e8,ffff80003c4b15cc,0,2,e59b7dfa302d6f77,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1680,ffff80003c4b1668) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4b1800,ffff80003c4b1838,ffff80003c4b1780) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbd0d78,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4b1990,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4b1990) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x72b6becfec60, count: -13