panic: mtx 0xffffffff8395e770: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *493632 10245 32767 0x10 0 1 syz-executor 476418 10245 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e32f0) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8395e770) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8395e770) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008bad088) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065b37d50,1000,ffff80002abebf28,ffff80002abebf0c,0,2,74e3cab87cee926e,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002abec140,ffff80002abec178,ffff80002abebfc0,ffff80002abebfa8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80002abec140,ffff80002abec178,ffff80002abec0c0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806be3b5d0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002abec2d0,200000001480) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002abec2d0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7cd3a2fd4be0, 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 0xffffffff8395e770: locking against myself ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e32f0) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8395e770) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8395e770) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008bad088) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065b37d50,1000,ffff80002abebf28,ffff80002abebf0c,0,2,74e3cab87cee926e,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002abec140,ffff80002abec178,ffff80002abebfc0,ffff80002abebfa8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80002abec140,ffff80002abec178,ffff80002abec0c0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806be3b5d0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002abec2d0,200000001480) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002abec2d0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7cd3a2fd4be0, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002abebc70 rbx 0xffff8000299eedcf rdx 0 rcx 0xffff80003a0312a8 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x69cf2b9b17244d8c r11 0x4218edf13e3910db r12 0xffff8000299eebd0 r13 0 r14 0 r15 0x1 rip 0xffffffff81d6c8a5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002abebc60 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=493632 pid=10245 tcnt=4 stat=onproc flags process=10 proc=0 runpri=50, usrpri=50, slppri=16, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003a032a90,0xffff800034fff828 process=0xffff800035817460 user=0xffff80002abe7000, vmspace=0xfffffd806be3b5d0 estcpu=36, cpticks=2, pctcpu=0.0, user=1, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15857 149319 16611 0 2 0 syz-executor *10245 493632 6020 32767 7 0x10 syz-executor 10245 194281 6020 32767 3 0x4000090 fsleep syz-executor 10245 438801 6020 32767 3 0x4000010 biowait syz-executor 10245 476418 6020 32767 7 0x4000010 syz-executor 16611 496422 17565 0 3 0x82 wait syz-executor 38307 266683 20723 32767 3 0x90 nanoslp syz-executor 38307 364024 20723 32767 3 0x4000090 ttyin syz-executor 38307 500308 20723 32767 3 0x4000090 fsleep syz-executor 15066 198362 61187 32767 2 0x10 syz-executor 15066 201948 61187 32767 3 0x4000090 fsleep syz-executor 15066 360882 61187 32767 3 0x4000090 fsleep syz-executor 61023 187445 30915 32767 3 0x90 nanoslp syz-executor 61023 40498 30915 32767 3 0x4000090 ttyin syz-executor 61023 471697 30915 32767 3 0x4000090 fsleep syz-executor 77058 276440 3702 32767 3 0x90 nanoslp syz-executor 77058 454140 3702 32767 3 0x4000090 sbwait syz-executor 77058 442396 3702 32767 3 0x4000090 fsleep syz-executor 10150 104108 0 0 3 0x14200 bored sosplice 20723 267674 34977 32767 3 0x90 nanoslp syz-executor 61187 212250 53924 32767 3 0x90 nanoslp syz-executor 30915 28312 78189 32767 3 0x90 nanoslp syz-executor 16243 205506 41717 32767 3 0x90 nanoslp syz-executor 3702 182530 62043 32767 3 0x90 nanoslp syz-executor 6020 231863 95295 32767 3 0x90 nanoslp syz-executor 34977 416325 17565 0 3 0x82 wait syz-executor 53924 39975 17565 0 3 0x82 wait syz-executor 78189 64716 17565 0 3 0x82 wait syz-executor 41717 180206 17565 0 3 0x82 wait syz-executor 62043 364810 17565 0 3 0x82 wait syz-executor 95295 71428 17565 0 3 0x82 wait syz-executor 17565 168472 27195 0 3 0x82 nanoslp syz-executor 27195 477102 76319 0 3 0x10008a sigsusp ksh 76319 193915 77712 0 3 0x98 kqread sshd-session 77712 264488 1460 0 3 0x92 kqread sshd-session 38475 147256 1 0 3 0x100083 ttyin getty 1460 36984 1 0 3 0x88 kqread sshd 12340 421332 72704 73 3 0x1100090 kqread syslogd 72704 227714 1 0 3 0x100082 sbwait syslogd 971 182538 1 0 3 0x100080 kqread resolvd 66981 387523 3273 77 3 0x100092 kqread dhcpleased 19545 405366 3273 77 3 0x100092 kqread dhcpleased 3273 508868 1 0 3 0x80 kqread dhcpleased 77572 4467 0 0 3 0x14200 bored smr 2227 381470 0 0 2 0x14200 zerothread 18162 462383 0 0 3 0x14200 aiodoned aiodoned 60052 261501 0 0 3 0x14200 syncer update 95253 179742 0 0 3 0x14200 cleaner cleaner 35873 87865 0 0 3 0x14200 reaper reaper 69381 13923 0 0 3 0x14200 pgdaemon pagedaemon 49016 458987 0 0 3 0x14200 bored viomb 90861 153953 0 0 3 0x40014200 acpi0 acpi0 25176 247277 0 0 3 0x40014200 idle1 53337 346611 0 0 3 0x14200 bored softnet3 41445 72009 0 0 3 0x14200 bored softnet2 92445 154624 0 0 3 0x14200 bored softnet1 40332 97274 0 0 3 0x14200 bored softnet0 73291 21592 0 0 3 0x14200 bored systqmp 66521 210880 0 0 3 0x14200 bored systq 82829 462842 0 0 3 0x14200 tmoslp softclockmp 89439 442272 0 0 3 0x40014200 tmoslp softclock 54400 474649 0 0 3 0x40014200 idle0 1 309852 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 (0xffffffff8395e780) #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: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:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 10245 (syz-executor) thread 0xffff80003a0312a8 (493632) exclusive rwlock uobjlk r = 0 (0xfffffd80713414a0) #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+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:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff8395e780) #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: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:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 10245 (syz-executor) thread 0xffff800034fff818 (194281) exclusive rwlock futexpl r = 0 (0xffffffff83923060) #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 pool_get+0x10b sys/kern/subr_pool.c:583 #3 futex_get+0x309 sys/kern/sys_futex.c:171 #4 futex_wait+0x328 sys/kern/sys_futex.c:-1 #5 sys_futex+0x149 sys/kern/sys_futex.c:101 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive rwlock futex r = 0 (0xffffffff837ed668) #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_futex+0x69 sys/kern/sys_futex.c:98 #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 Process 10245 (syz-executor) thread 0xffff8000350002b8 (438801) exclusive rrwlock inode r = 0 (0xfffffd806e778528) #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: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:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10179 10949K 10965K 166960K 11262 0 pcb 17 12K 12K 166960K 17 0 rtable 190 5K 6K 166960K 350 0 pf 27 16K 16K 166960K 31 0 ifaddr 34 6K 7K 166960K 44 0 ifgroup 42 1K 2K 166960K 50 0 sysctl 3 1K 1K 166960K 3 0 counters 60 35K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 31 0 iov 1 12K 16K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1642 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 9 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 22 81K 121K 166960K 383 0 sigio 0 0K 0K 166960K 1 0 proc 58 79K 127K 166960K 481 0 subproc 63 3K 4K 166960K 351 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 21 0 in_multi 78 5K 7K 166960K 100 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 447 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 235 151K 178K 166960K 4188 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 43 86K 115K 166960K 1383 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 14 0 NDP 9 0K 2K 166960K 27 0 temp 34 8679K 8743K 166960K 4817 0 kqueue 14 22K 28K 166960K 47 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 39 0 36 1 0 1 1 0 8 0 rtentry 176 112 0 24 6 0 6 6 0 8 1 unpcb 144 248 0 228 6 0 6 6 0 8 5 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 808 59 0 55 1 0 1 1 0 8 0 arp 128 18 0 4 1 0 1 1 0 8 0 inpcb 384 322 0 311 14 0 14 14 0 8 12 nd6 144 25 0 7 1 0 1 1 0 8 0 kcovpl 48 39 0 32 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 454 0 90 29 0 29 29 0 8 2 art_table 32 455 0 90 4 0 4 4 0 8 0 art_node 16 111 0 31 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 4 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 9 0 2 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1746 0 207 97 0 97 97 0 8 0 ffsino 288 1746 0 207 110 0 110 110 0 8 0 nchpl 144 2105 0 395 64 0 64 64 0 8 0 uvmvnodes 80 2106 0 0 43 0 43 43 0 8 0 vnodes 216 2106 0 0 117 0 117 117 0 8 0 namei 1024 6643 0 6643 1 0 1 1 0 8 1 percpumem 16 47 0 2 1 0 1 1 0 8 0 kstatmem 264 22 0 4 2 0 2 2 0 8 0 scxspl 216 6700 0 6698 4 3 1 3 1 8 0 plimitpl 152 109 0 88 2 0 2 2 0 8 1 sigapl 424 594 0 541 8 0 8 8 0 8 1 futexpl 64 1727 0 1721 1 0 1 1 0 8 0 knotepl 120 293 0 0 9 0 9 9 0 8 0 kqueuepl 224 54 0 43 1 0 1 1 0 8 0 pipepl 336 204 0 176 3 0 3 3 0 8 0 fdescpl 520 575 0 541 4 0 4 4 0 8 1 filepl 160 2778 0 2569 14 0 14 14 0 8 4 lockfpl 104 35 0 31 1 0 1 1 0 8 0 lockfspl 48 18 0 14 1 0 1 1 0 8 0 sessionpl 144 52 0 38 1 0 1 1 0 8 0 pgrppl 48 95 0 74 1 0 1 1 0 8 0 ucredpl 104 231 0 214 1 0 1 1 0 8 0 zombiepl 144 542 0 541 1 0 1 1 0 8 0 processpl 1216 594 0 541 5 0 5 5 0 8 0 procpl 680 798 0 734 6 0 6 6 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 728 611 0 577 19 4 15 15 0 8 11 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 108 0 0 14 0 14 14 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 256 245 0 0 16 0 16 16 0 8 0 bufpl 280 2419 0 117 165 0 165 165 0 8 0 anonpl 32 5374 0 0 44 0 44 44 0 246 0 amapchunkpl 152 12640 0 12130 32 0 32 32 0 158 12 amappl16 200 2131 0 2108 5 3 2 5 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 103 0 93 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1193 0 1160 2 0 2 2 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 242 0 241 1 0 1 1 0 8 0 amappl8 136 38 0 37 1 0 1 1 0 8 0 amappl7 128 90 0 79 1 0 1 1 0 8 0 amappl6 120 194 0 191 1 0 1 1 0 8 0 amappl5 112 157 0 150 1 0 1 1 0 8 0 amappl4 104 290 0 272 1 0 1 1 0 8 0 amappl3 96 2173 0 2054 4 0 4 4 0 8 0 amappl2 88 595 0 541 2 0 2 2 0 8 0 amappl1 80 8771 0 8209 15 0 15 15 0 8 0 amappl 88 3509 0 3339 5 0 5 5 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 575 0 541 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 575 0 541 1 0 1 1 0 8 0 vmmpekpl 168 6917 0 6877 3 0 3 3 0 8 0 vmmpepl 168 42701 0 40709 97 0 97 97 0 357 9 vmsppl 480 574 0 541 7 1 6 6 0 8 0 rwobjpl 72 16030 0 13090 54 0 54 54 0 8 0 pdppl 4096 1158 0 1082 108 30 78 98 0 8 2 pvpl 32 11045 0 0 90 0 90 90 0 265 0 pmappl 256 574 0 541 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 402 0 33 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83863ff0) 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(ffffffff83959878) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83959878) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002ac04c70,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83959878) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83959878) at __mp_lock+0x192 sys/kern/kern_lock.c:144 end trace frame: 0x0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff83863ff0) 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(ffffffff83959878) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83959878) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002ac04c70,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83959878) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83959878) at __mp_lock+0x192 sys/kern/kern_lock.c:144 end trace frame: 0x0, count: -7 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(ffffffff833e32f0) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8395e770) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8395e770) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008bad088) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065b37d50,1000,ffff80002abebf28,ffff80002abebf0c,0,2,74e3cab87cee926e,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002abec140,ffff80002abec178,ffff80002abebfc0,ffff80002abebfa8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80002abec140,ffff80002abec178,ffff80002abec0c0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806be3b5d0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002abec2d0,200000001480) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002abec2d0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7cd3a2fd4be0, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e32f0) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8395e770) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8395e770) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008bad088) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008bad088) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065b37d50,1000,ffff80002abebf28,ffff80002abebf0c,0,2,74e3cab87cee926e,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002abec140,ffff80002abec178,ffff80002abebfc0,ffff80002abebfa8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80002abec140,ffff80002abec178,ffff80002abec0c0) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806be3b5d0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002abec2d0,200000001480) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002abec2d0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7cd3a2fd4be0, count: -13