panic: mtx 0xffffffff838f9ef0: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 80998 30123 0 0 0 0 syz-executor 420765 54312 0 0 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e3b44) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838f9ef0) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838f9ef0) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008187c08) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008187c08) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008187c08) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065dd29b8,1000,ffff80003c4581a8,ffff80003c45818c,0,2,852a6bee611e72d5,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4583c0,ffff80003c4583f8,ffff80003c458240,ffff80003c458228) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4583c0,ffff80003c4583f8,ffff80003c458340) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806be95d38,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c458550,200000001280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c458550) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a98995f09e0, 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 0xffffffff838f9ef0: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e3b44) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838f9ef0) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838f9ef0) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008187c08) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008187c08) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008187c08) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065dd29b8,1000,ffff80003c4581a8,ffff80003c45818c,0,2,852a6bee611e72d5,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4583c0,ffff80003c4583f8,ffff80003c458240,ffff80003c458228) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4583c0,ffff80003c4583f8,ffff80003c458340) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806be95d38,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c458550,200000001280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c458550) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a98995f09e0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c457ef0 rbx 0xffffffff837f3dcf cpu_info_full_primary+0x2dcf rdx 0 rcx 0xffff80002a2d6808 rax 0xffffffff837f2ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x48e0c897597507be r11 0xc48a6a2319bc248a r12 0xffffffff837f3bd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff8307b4a5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c457ee0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=80998 pid=30123 tcnt=4 stat=onproc flags process=0 proc=0 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2d6010,0xffff80002a2d5828 process=0xffff8000ffff6158 user=0xffff80003c453000, vmspace=0xfffffd806be95d38 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *30123 80998 72381 0 7 0 syz-executor 30123 396205 72381 0 3 0x4000080 fsleep syz-executor 30123 523192 72381 0 3 0x4000000 biowait syz-executor 30123 414009 72381 0 3 0x4000080 fsleep syz-executor 19699 273104 93517 0 3 0x3000 suspend syz-executor 19699 70268 93517 0 2 0x4081000 syz-executor 54312 420765 65289 0 7 0 syz-executor 54312 420053 65289 0 2 0x4000000 syz-executor 54312 33151 65289 0 3 0x4000000 biowait syz-executor 79991 515149 73180 0 3 0x80 nanoslp syz-executor 79991 410216 73180 0 3 0x4000080 sbwait syz-executor 79991 64587 73180 0 3 0x4000080 ttyout syz-executor 79991 119051 73180 0 3 0x4000080 fsleep syz-executor 79476 469596 35007 0 3 0x80 nanoslp syz-executor 79476 90652 35007 0 3 0x4000080 msgwait syz-executor 79476 398506 35007 0 3 0x4000080 fsleep syz-executor 18752 171272 64767 0 3 0x80 nanoslp syz-executor 18752 274956 64767 0 3 0x4000080 bell syz-executor 18752 398474 64767 0 3 0x4000080 fsleep syz-executor 76409 48404 2718 0 3 0x90 nanoslp syz-executor 76409 402136 2718 0 3 0x4000090 ttyout syz-executor 76409 443119 2718 0 3 0x4000090 fsleep syz-executor 33329 333726 0 0 3 0x14280 nfsidl nfsio 35739 434017 0 0 3 0x14280 nfsidl nfsio 59131 154001 0 0 3 0x14280 nfsidl nfsio 61753 278350 0 0 3 0x14280 nfsidl nfsio 40768 361116 0 0 3 0x14280 nfsidl nfsio 9539 344799 0 0 3 0x14280 nfsidl nfsio 10452 421557 0 0 3 0x14280 nfsidl nfsio 48886 500103 0 0 3 0x14280 nfsidl nfsio 66768 456580 0 0 3 0x14280 nfsidl nfsio 39555 239786 0 0 3 0x14280 nfsidl nfsio 31618 117703 0 0 3 0x14280 nfsidl nfsio 4263 35658 0 0 3 0x14280 nfsidl nfsio 78783 129071 0 0 3 0x14280 nfsidl nfsio 86551 481816 0 0 3 0x14280 nfsidl nfsio 97855 236474 0 0 3 0x14280 nfsidl nfsio 94796 104942 0 0 3 0x14280 nfsidl nfsio 92967 480394 0 0 3 0x14280 nfsidl nfsio 14623 439085 0 0 3 0x14280 nfsidl nfsio 21194 2716 0 0 3 0x14280 nfsidl nfsio 27998 486597 0 0 3 0x14280 nfsidl nfsio 880 96120 0 0 3 0x14200 bored sosplice 64767 139865 85674 0 3 0x82 nanoslp syz-executor 30141 299463 85674 0 3 0x82 wait syz-executor 2718 303926 85674 0 3 0x82 nanoslp syz-executor 65289 408832 85674 0 3 0x82 nanoslp syz-executor 93517 129939 85674 0 3 0x82 nanoslp syz-executor 35007 285713 85674 0 3 0x82 nanoslp syz-executor 72381 127800 85674 0 3 0x82 nanoslp syz-executor 73180 11053 85674 0 3 0x82 nanoslp syz-executor 85674 240772 55363 0 2 0x2 syz-executor 55363 400829 88153 0 3 0x10008a sigsusp ksh 88153 469855 64796 0 3 0x98 kqread sshd-session 64796 125279 73421 0 3 0x92 kqread sshd-session 15282 18356 1 0 3 0x100083 ttyin getty 73421 392593 1 0 3 0x88 kqread sshd 9408 69610 60482 74 3 0x1100092 bpf pflogd 60482 326876 1 0 3 0x80 sbwait pflogd 92010 426231 28340 73 3 0x1100090 kqread syslogd 28340 314018 1 0 3 0x100082 sbwait syslogd 88594 414562 1 0 3 0x100080 kqread resolvd 86549 218613 4288 77 3 0x100092 kqread dhcpleased 31437 249038 4288 77 3 0x100092 kqread dhcpleased 4288 384979 1 0 3 0x80 kqread dhcpleased 44450 96375 0 0 3 0x14200 bored smr 66359 337396 0 0 2 0x14200 zerothread 13133 100734 0 0 3 0x14200 aiodoned aiodoned 86986 388392 0 0 3 0x14200 syncer update 89673 61574 0 0 3 0x14200 cleaner cleaner 51714 317753 0 0 3 0x14200 reaper reaper 16643 131456 0 0 3 0x14200 pgdaemon pagedaemon 4282 288969 0 0 3 0x14200 bored viomb 59481 504279 0 0 3 0x40014200 acpi0 acpi0 44190 294907 0 0 3 0x40014200 idle1 88335 195993 0 0 3 0x14200 bored softnet3 91086 462812 0 0 3 0x14200 bored softnet2 5804 172020 0 0 3 0x14200 bored softnet1 58397 166126 0 0 3 0x14200 bored softnet0 98730 447517 0 0 3 0x14200 bored systqmp 58144 289959 0 0 3 0x14200 bored systq 16884 136765 0 0 3 0x14200 tmoslp softclockmp 89682 385415 0 0 3 0x40014200 tmoslp softclock 48379 349739 0 0 3 0x40014200 idle0 1 337462 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 (0xffffffff838f9f00) #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 30123 (syz-executor) thread 0xffff80002a2d6808 (80998) exclusive rwlock uobjlk r = 0 (0xfffffd805fb63390) #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 (0xffffffff838f9f00) #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 30123 (syz-executor) thread 0xffff80002a2d5818 (396205) exclusive rwlock futexpl r = 0 (0xffffffff83925cb0) #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 (0xffffffff838142a8) #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 30123 (syz-executor) thread 0xffff80002a2d62b8 (523192) exclusive rrwlock inode r = 0 (0xfffffd806c6937a0) #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 Process 54312 (syz-executor) thread 0xffff80002a2d5ac0 (33151) exclusive rrwlock inode r = 0 (0xfffffd806f48abf0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1732 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 #10 domknodat+0x47e sys/kern/vfs_syscalls.c:1636 #11 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c693d40) #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1588 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 11085K 11413K 166960K 11649 0 pcb 18 18K 20K 166960K 139 0 rtable 225 8K 8K 166960K 378 0 pf 37 18K 19K 166960K 64 0 ifaddr 41 7K 7K 166960K 55 0 ifgroup 60 2K 2K 166960K 74 0 sysctl 1 1K 1K 166960K 1 0 counters 66 36K 37K 166960K 86 0 ioctlops 0 0K 4K 166960K 1575 0 iov 0 0K 12K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1439 90K 91K 166960K 1673 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 350 0 sigio 0 0K 0K 166960K 6 0 proc 72 91K 128K 166960K 565 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 23 0 in_multi 88 6K 6K 166960K 112 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 383 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 252 167K 177K 166960K 4883 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 43 86K 105K 166960K 1438 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 12 0 NDP 13 0K 1K 166960K 36 0 temp 74 8688K 8755K 166960K 10482 0 kqueue 14 22K 30K 166960K 63 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 120 113 0 109 3 0 3 3 0 8 2 rtentry 176 113 0 11 5 0 5 5 0 8 0 unpcb 144 218 0 195 4 0 4 4 0 8 3 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 219 0 214 17 8 9 11 0 8 8 arp 128 19 0 0 1 0 1 1 0 8 0 inpcb 384 593 0 584 38 29 9 24 0 8 8 nd6 144 24 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 10 0 10 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 3 2 1 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 29 0 0 1 0 1 1 0 8 0 pfstkey 128 29 0 0 1 0 1 1 0 8 0 pfstate 384 29 0 0 3 0 3 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 459 0 46 26 0 26 26 0 8 0 art_table 32 461 0 46 4 0 4 4 0 8 0 art_node 16 112 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 112 6 0 0 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2014 0 505 95 0 95 95 0 8 0 ffsino 288 2014 0 505 109 0 109 109 0 8 0 nchpl 144 2509 0 819 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 1 0 1 0 8 0 uvmvnodes 80 2295 0 0 47 0 47 47 0 8 0 vnodes 216 2295 0 0 128 0 128 128 0 8 0 namei 1024 8219 0 8218 3 2 1 2 0 8 0 percpumem 16 58 0 10 1 0 1 1 0 8 0 kstatmem 264 40 0 14 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 8458 0 8455 10 8 2 8 1 8 1 plimitpl 152 43 0 26 1 0 1 1 0 8 0 sigapl 424 672 0 601 9 1 8 8 0 8 0 futexpl 64 3257 0 3251 1 0 1 1 0 8 0 knotepl 120 462 0 0 14 0 14 14 0 8 0 kqueuepl 224 148 0 138 5 4 1 5 0 8 0 pipepl 336 122 0 93 3 0 3 3 0 8 0 fdescpl 520 633 0 601 3 0 3 3 0 8 0 filepl 160 3543 0 3306 27 9 18 22 0 8 8 lockfpl 104 51 0 47 1 0 1 1 0 8 0 lockfspl 48 26 0 22 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 373 0 359 1 0 1 1 0 8 0 zombiepl 144 603 0 601 1 0 1 1 0 8 0 processpl 1216 672 0 601 7 1 6 6 0 8 0 procpl 680 1074 0 988 8 0 8 8 0 8 0 srpgc 96 1 0 1 1 1 0 1 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 728 929 0 893 42 31 11 30 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 10 0 0 1 0 1 1 0 8 0 mbufpl 256 152 0 0 10 0 10 10 0 8 0 bufpl 280 2842 0 127 194 0 194 194 0 8 0 anonpl 32 5594 0 0 46 0 46 46 0 246 0 amapchunkpl 152 15141 0 14613 30 4 26 26 0 158 5 amappl16 200 2100 0 2069 6 3 3 6 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 112 0 100 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 1275 0 1243 4 2 2 3 0 8 0 amappl11 160 47 0 33 1 0 1 1 0 8 0 amappl10 152 2 0 2 1 1 0 1 0 8 0 amappl9 144 241 0 241 1 1 0 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 107 0 95 1 0 1 1 0 8 0 amappl6 120 175 0 172 1 0 1 1 0 8 0 amappl5 112 139 0 129 1 0 1 1 0 8 0 amappl4 104 320 0 299 1 0 1 1 0 8 0 amappl3 96 2742 0 2621 5 1 4 4 0 8 0 amappl2 88 638 0 576 2 0 2 2 0 8 0 amappl1 80 9124 0 8518 14 1 13 14 0 8 0 amappl 88 4165 0 3986 6 1 5 6 0 92 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 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 128 254 0 254 2 1 1 1 0 8 1 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 633 0 601 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 633 0 601 1 0 1 1 0 8 0 vmmpekpl 168 6834 0 6795 2 0 2 2 0 8 0 vmmpepl 168 45971 0 43929 91 1 90 90 0 357 1 vmsppl 480 632 0 601 5 1 4 5 0 8 0 rwobjpl 72 17171 0 13925 60 0 60 60 0 8 0 pdppl 4096 1274 0 1202 108 36 72 86 0 8 0 pvpl 32 12621 0 0 102 0 102 102 0 265 0 pmappl 256 632 0 601 3 1 2 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 412 0 50 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(ffffffff833e3b44) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838f9ef0) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838f9ef0) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008187c08) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008187c08) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008187c08) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065dd29b8,1000,ffff80003c4581a8,ffff80003c45818c,0,2,852a6bee611e72d5,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4583c0,ffff80003c4583f8,ffff80003c458240,ffff80003c458228) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4583c0,ffff80003c4583f8,ffff80003c458340) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806be95d38,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c458550,200000001280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c458550) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a98995f09e0, 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 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: 0x7564dcb79e50, count: 12 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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: 0x7564dcb79e50, count: -3