panic: mtx 0xffffffff83901258: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 92691 37936 32767 0x10 0 1 syz-executor * 24275 96515 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83338bda) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83901258) at mtx_enter_try+0x1da mtx_enter(ffffffff83901258) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80083c48c0) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80083c48c0) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80083c48c0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805f8eee70,0,ffff80003b832e78,ffff80003b832e5c,0,2,51dabd0103cd4baa,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003b833090,ffff80003b8330c8,ffff80003b832f10,ffff80003b832ef8) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003b833090,ffff80003b8330c8,ffff80003b833010) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bb7f5e0,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003b833220,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003b833220) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x74a09ce891b0, 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 0xffffffff83901258: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83338bda) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83901258) at mtx_enter_try+0x1da mtx_enter(ffffffff83901258) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80083c48c0) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80083c48c0) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80083c48c0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805f8eee70,0,ffff80003b832e78,ffff80003b832e5c,0,2,51dabd0103cd4baa,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003b833090,ffff80003b8330c8,ffff80003b832f10,ffff80003b832ef8) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003b833090,ffff80003b8330c8,ffff80003b833010) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bb7f5e0,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003b833220,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003b833220) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x74a09ce891b0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003b832bb0 rbx 0xffffffff837a5ddf cpu_info_full_primary+0x2ddf rdx 0 rcx 0xffff80003c4a87f8 rax 0xffffffff837a4ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x71fff72f61447864 r11 0x6d9ec4ad1d4d5910 r12 0xffffffff837a5be0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff8119d4f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003b832ba0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=24275 pid=96515 tcnt=4 stat=onproc flags process=10 proc=0 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4a9cb8,0xffff80003c4a82d8 process=0xffff80003c46bab0 user=0xffff80003b82e000, vmspace=0xfffffd806bb7f5e0 estcpu=36, cpticks=1, pctcpu=0.0, user=1, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37936 92691 71970 32767 7 0x10 syz-executor 37936 382848 71970 32767 3 0x4000090 fsleep syz-executor 37936 205056 71970 32767 2 0x4000010 syz-executor *96515 24275 49736 32767 7 0x10 syz-executor 96515 196896 49736 32767 3 0x4000090 fsleep syz-executor 96515 36063 49736 32767 3 0x4000090 fsleep syz-executor 96515 344029 49736 32767 3 0x4000090 fsleep syz-executor 78540 426779 0 0 3 0x14200 bored sosplice 72516 117993 33479 32767 3 0x90 nanoslp syz-executor 72516 484347 33479 32767 3 0x4000090 netcon syz-executor 72516 206435 33479 32767 3 0x4000090 fsleep syz-executor 86455 507503 7418 32767 3 0x90 nanoslp syz-executor 86455 102158 7418 32767 3 0x4000090 ttyin syz-executor 86455 42852 7418 32767 3 0x4000090 fsleep syz-executor 14513 378481 23107 32767 3 0x90 nanoslp syz-executor 14513 430283 23107 32767 3 0x4000090 sbwait syz-executor 14513 134976 23107 32767 3 0x4000090 sbwait syz-executor 14513 266595 23107 32767 3 0x4000090 fsleep syz-executor 25135 126195 16359 32767 3 0x90 nanoslp syz-executor 25135 205224 16359 32767 3 0x4000090 kqsel syz-executor 25135 52078 16359 32767 3 0x4000090 kqsel syz-executor 25135 249051 16359 32767 3 0x4000090 fsleep syz-executor 2197 47793 92268 32767 3 0x90 nanoslp syz-executor 2197 493678 92268 32767 3 0x4000090 fsleep syz-executor 2197 483940 92268 32767 3 0x4000090 fsleep syz-executor 2197 111939 92268 32767 3 0x4000090 ttyout syz-executor 83630 49691 10580 32767 3 0x90 wait syz-executor 92268 234698 71049 32767 3 0x90 nanoslp syz-executor 71970 466570 40175 32767 3 0x90 nanoslp syz-executor 23107 2253 21157 32767 3 0x90 nanoslp syz-executor 16359 498985 52903 32767 3 0x90 nanoslp syz-executor 49736 120569 97651 32767 3 0x90 nanoslp syz-executor 33479 419303 63712 32767 3 0x90 nanoslp syz-executor 7418 364764 81914 32767 3 0x90 nanoslp syz-executor 40175 332123 9004 0 3 0x82 wait syz-executor 21157 96030 9004 0 3 0x82 wait syz-executor 10580 360956 9004 0 3 0x82 wait syz-executor 71049 432360 9004 0 3 0x82 wait syz-executor 52903 220087 9004 0 3 0x82 wait syz-executor 97651 181338 9004 0 3 0x82 wait syz-executor 63712 308717 9004 0 3 0x82 wait syz-executor 81914 150402 9004 0 3 0x82 wait syz-executor 9004 321895 93747 0 3 0x82 kqread syz-executor 93747 374519 82787 0 3 0x10008a sigsusp ksh 82787 447419 83077 0 3 0x98 kqread sshd-session 83077 19545 12963 0 3 0x92 kqread sshd-session 92662 61951 1 0 3 0x100083 ttyin getty 12963 340938 1 0 3 0x88 kqread sshd 26851 411236 63451 73 3 0x1100090 kqread syslogd 63451 27469 1 0 3 0x100082 sbwait syslogd 59715 11279 1 0 3 0x100080 kqread resolvd 59495 441010 78937 77 3 0x100092 kqread dhcpleased 71260 91232 78937 77 3 0x100092 kqread dhcpleased 78937 13276 1 0 3 0x80 kqread dhcpleased 37792 49187 0 0 3 0x14200 bored smr 63805 304120 0 0 3 0x14200 pgzero zerothread 38182 99656 0 0 3 0x14200 aiodoned aiodoned 26896 394645 0 0 3 0x14200 syncer update 53057 284289 0 0 3 0x14200 cleaner cleaner 98425 388408 0 0 3 0x14200 reaper reaper 55654 123675 0 0 3 0x14200 pgdaemon pagedaemon 64594 316971 0 0 3 0x14200 bored viomb 28206 517443 0 0 3 0x40014200 acpi0 acpi0 42171 112035 0 0 3 0x40014200 idle1 41532 12683 0 0 3 0x14200 bored softnet7 47810 242935 0 0 3 0x14200 bored softnet6 80883 518400 0 0 3 0x14200 bored softnet5 54522 471475 0 0 3 0x14200 bored softnet4 28976 479934 0 0 3 0x14200 bored softnet3 84543 189932 0 0 3 0x14200 bored softnet2 41674 473953 0 0 3 0x14200 bored softnet1 98808 326186 0 0 3 0x14200 bored softnet0 31303 323347 0 0 3 0x14200 bored systqmp 31522 292928 0 0 3 0x14200 bored systq 97774 193645 0 0 3 0x14200 tmoslp softclockmp 56637 190156 0 0 3 0x40014200 tmoslp softclock 37357 326690 0 0 3 0x40014200 idle0 1 98249 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 (0xffffffff83901268) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 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+0x674 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 96515 (syz-executor) thread 0xffff80003c4a87f8 (24275) exclusive rwlock uobjlk r = 0 (0xfffffd806b8ef130) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvn_io+0x667 sys/uvm/uvm_vnode.c:1298 #3 uvn_get+0x31d sys/uvm/uvm_vnode.c:1102 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83901268) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 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+0x674 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 96515 (syz-executor) thread 0xffff80003c4a8a90 (36063) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8399abf0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #3 biowait+0xc6 sys/kern/vfs_bio.c:1242 #4 bwrite+0x2e7 sys/kern/vfs_bio.c:754 #5 ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 #6 ffs_truncate+0x6b3 sys/ufs/ffs/ffs_inode.c:197 #7 ufs_setattr+0x8e9 sys/ufs/ufs/ufs_vnops.c:403 #8 VOP_SETATTR+0x11b sys/kern/vfs_vops.c:210 #9 dotruncate+0x1da sys/kern/vfs_syscalls.c:2861 #10 sys_ftruncate+0x1da sys/kern/vfs_syscalls.c:2912 #11 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b9ca6a0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c1 sys/kern/vfs_syscalls.c:2912 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10197 10957K 10968K 166960K 11275 0 pcb 17 12K 12K 166960K 17 0 rtable 213 6K 6K 166960K 274 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 3 1K 9K 166960K 7 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 30 0 iov 1 12K 20K 166960K 15 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1365 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 26 97K 121K 166960K 337 0 proc 58 99K 147K 166960K 509 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 1 0K 0K 166960K 34 0 in_multi 99 7K 7K 166960K 105 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 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 357 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 271 160K 172K 166960K 4586 0 UVM aobj 10 2K 2K 166960K 11 0 pinsyscall 47 94K 108K 166960K 1354 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 18 0 NDP 11 0K 2K 166960K 27 0 temp 45 8636K 8762K 166960K 4518 0 kqueue 13 20K 27K 166960K 65 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 58 0 54 1 0 1 1 0 8 0 rtentry 176 100 0 2 5 0 5 5 0 8 0 unpcb 144 162 0 140 1 0 1 1 0 8 0 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpqe 32 4 0 4 1 0 1 1 0 8 1 tcpcb 736 96 0 84 2 0 2 2 0 8 0 arp 128 11 0 0 1 0 1 1 0 8 0 inpcb 328 281 0 262 4 0 4 4 0 8 2 ip6q 72 1 0 1 1 0 1 1 0 8 1 ip6af 40 2 0 2 1 0 1 1 0 8 1 nd6 144 20 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 256 458 0 2 29 0 29 29 0 8 0 art_table 40 459 0 2 5 0 5 5 0 8 0 art_node 32 100 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semupl 112 1 0 0 1 0 1 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 8 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1830 0 321 95 0 95 95 0 8 0 ffsino 296 1830 0 321 117 0 117 117 0 8 0 nchpl 144 2308 0 629 63 0 63 63 0 8 0 uvmvnodes 80 1911 0 0 39 0 39 39 0 8 0 vnodes 216 1911 0 0 107 0 107 107 0 8 0 namei 1024 6826 0 6826 2 0 2 2 0 8 2 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 7826 0 7826 3 2 1 2 1 8 1 plimitpl 152 76 0 49 2 0 2 2 0 8 0 sigapl 424 617 0 556 8 0 8 8 0 8 0 knotepl 120 559 0 0 17 0 17 17 0 8 0 kqueuepl 224 76 0 65 1 0 1 1 0 8 0 pipepl 344 109 0 82 3 0 3 3 0 8 0 fdescpl 528 594 0 556 3 0 3 3 0 8 0 filepl 160 2447 0 2213 11 0 11 11 0 8 1 lockfpl 104 90 0 85 1 0 1 1 0 8 0 lockfspl 48 30 0 25 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 38 0 14 1 0 1 1 0 8 0 ucredpl 104 340 0 321 1 0 1 1 0 8 0 zombiepl 144 557 0 556 1 0 1 1 0 8 0 processpl 1248 617 0 556 7 1 6 6 0 8 0 procpl 664 948 0 869 7 0 7 7 0 8 0 sosppl 168 1 0 0 1 0 1 1 0 8 0 sockpl 752 503 0 458 7 0 7 7 0 8 2 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 215 0 0 14 0 14 14 0 8 0 bufpl 280 3132 0 117 216 0 216 216 0 8 0 anonpl 32 7386 0 0 60 0 60 60 0 246 0 amapchunkpl 152 14511 0 13901 31 2 29 29 0 158 3 amappl16 200 2529 0 2504 15 4 11 14 0 8 8 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 112 0 102 1 0 1 1 0 8 0 amappl13 176 12 0 12 1 0 1 1 0 8 1 amappl12 168 1197 0 1159 2 0 2 2 0 8 0 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 8 0 7 1 0 1 1 0 8 0 amappl9 144 279 0 279 1 1 0 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 97 0 87 1 0 1 1 0 8 0 amappl6 120 176 0 173 1 0 1 1 0 8 0 amappl5 112 115 0 108 1 0 1 1 0 8 0 amappl4 104 272 0 256 1 0 1 1 0 8 0 amappl3 96 2512 0 2371 4 0 4 4 0 8 0 amappl2 88 640 0 585 2 0 2 2 0 8 0 amappl1 80 9888 0 9297 15 0 15 15 0 8 0 amappl 88 3918 0 3714 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 10 0 1 1 0 1 1 0 8 0 uaddrrnd 24 594 0 556 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 594 0 556 1 0 1 1 0 8 0 vmmpekpl 168 6571 0 6540 2 0 2 2 0 8 0 vmmpepl 168 45373 0 43185 106 0 106 106 0 357 9 vmsppl 488 593 0 556 7 1 6 6 0 8 1 rwobjpl 80 17441 0 14642 60 0 60 60 0 8 2 pdppl 4096 1196 0 1112 112 26 86 96 0 8 2 pvpl 32 14799 0 0 120 0 120 120 0 265 0 pmappl 256 593 0 556 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 287 0 29 8 0 8 8 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(ffffffff83338bda) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83901258) at mtx_enter_try+0x1da mtx_enter(ffffffff83901258) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80083c48c0) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80083c48c0) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80083c48c0) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805f8eee70,0,ffff80003b832e78,ffff80003b832e5c,0,2,51dabd0103cd4baa,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003b833090,ffff80003b8330c8,ffff80003b832f10,ffff80003b832ef8) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003b833090,ffff80003b8330c8,ffff80003b833010) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bb7f5e0,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003b833220,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003b833220) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x74a09ce891b0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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: 0x763a114389e0, count: 12 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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: 0x763a114389e0, count: -3