login: panic: mtx 0xffffffff839f5de8: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *229725 33378 0 0 0 0 syz-executor 60072 33378 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f9ada) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839f5de8) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839f5de8) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd800814dea8) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800814dea8) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800814dea8) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80683c0378,1000,ffff80003c47ed78,ffff80003c47ed5c,0,2,427c5dac7f94a714,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c47ef90,ffff80003c47efc8,ffff80003c47ee10,ffff80003c47edf8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c47ef90,ffff80003c47efc8,ffff80003c47ef10) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806ef2c5c0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c47f120,200000001c00) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c47f120) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7aef09812380, 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 0xffffffff839f5de8: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f9ada) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839f5de8) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839f5de8) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd800814dea8) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800814dea8) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800814dea8) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80683c0378,1000,ffff80003c47ed78,ffff80003c47ed5c,0,2,427c5dac7f94a714,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c47ef90,ffff80003c47efc8,ffff80003c47ee10,ffff80003c47edf8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c47ef90,ffff80003c47efc8,ffff80003c47ef10) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806ef2c5c0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c47f120,200000001c00) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c47f120) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7aef09812380, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c47eab0 rbx 0xffffffff837fcddf cpu_info_full_primary+0x2ddf rdx 0 rcx 0xffff800036c094a8 rax 0xffffffff837fbff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x11d725f121d89adc r11 0xc71f29ef9982ee7c r12 0xffffffff837fcbe0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff8211bc95 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c47eaa0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=229725 pid=33378 tcnt=4 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800036c09738,0xffff800036c08a78 process=0xffff800036c0d3a0 user=0xffff80003c47a000, vmspace=0xfffffd806ef2c5c0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1347 273444 98027 0 2 0 syz-executor *33378 229725 10632 0 7 0 syz-executor 33378 340967 10632 0 3 0x4000080 fsleep syz-executor 33378 220496 10632 0 3 0x4000000 biowait syz-executor 33378 60072 10632 0 7 0x4000000 syz-executor 3866 209259 75765 0 2 0 syz-executor 3866 431794 75765 0 3 0x4000080 fsleep syz-executor 80057 170540 67392 0 2 0 syz-executor 80057 340263 67392 0 3 0x4000000 biowait syz-executor 80057 188760 67392 0 3 0x4000000 fltagain2 syz-executor 96174 275702 23486 0 2 0 syz-executor 96174 298744 23486 0 3 0x4000080 ttyin syz-executor 96174 182211 23486 0 3 0x4000080 fsleep syz-executor 93227 409467 91478 0 3 0x80 nanoslp syz-executor 93227 395846 91478 0 3 0x4000080 sbwait syz-executor 93227 337446 91478 0 3 0x4000080 piperd syz-executor 93227 126507 91478 0 3 0x4000080 fsleep syz-executor 44634 49957 1 0 3 0x100083 ttyin getty 90881 396643 0 0 3 0x14200 bored sosplice 67392 43843 95726 0 3 0x82 nanoslp syz-executor 75765 66094 95726 0 3 0x82 nanoslp syz-executor 10632 446334 95726 0 3 0x82 nanoslp syz-executor 83636 38571 95726 0 3 0x82 piperd syz-executor 91478 206559 95726 0 3 0x82 nanoslp syz-executor 30921 22137 95726 0 2 0x2 syz-executor 23486 64521 95726 0 3 0x82 nanoslp syz-executor 98027 484226 95726 0 3 0x82 nanoslp syz-executor 95726 60158 70757 0 2 0x2 syz-executor 70757 423030 24448 0 3 0x10008a sigsusp ksh 24448 88802 88005 0 3 0x98 kqread sshd-session 88005 166341 58404 0 3 0x92 kqread sshd-session 58404 27848 1 0 3 0x88 kqread sshd 77783 149729 63349 74 3 0x1100092 bpf pflogd 63349 166964 1 0 3 0x80 sbwait pflogd 72744 411448 67786 73 3 0x1100090 kqread syslogd 67786 333179 1 0 3 0x100082 sbwait syslogd 71088 16243 1 0 3 0x100080 kqread resolvd 96446 63684 68989 77 3 0x100092 kqread dhcpleased 14125 204063 68989 77 3 0x100092 kqread dhcpleased 68989 193011 1 0 3 0x80 kqread dhcpleased 67621 49630 0 0 3 0x14200 bored smr 64121 367826 0 0 3 0x14200 pgzero zerothread 64235 390956 0 0 3 0x14200 aiodoned aiodoned 3287 342055 0 0 3 0x14200 syncer update 40355 151828 0 0 3 0x14200 cleaner cleaner 30998 464486 0 0 3 0x14200 reaper reaper 81300 182455 0 0 3 0x14200 pgdaemon pagedaemon 89252 516583 0 0 3 0x14200 bored viomb 56552 488037 0 0 3 0x40014200 acpi0 acpi0 86837 510072 0 0 3 0x40014200 idle1 22472 299739 0 0 3 0x14200 bored softnet7 41967 282346 0 0 3 0x14200 bored softnet6 70363 231444 0 0 3 0x14200 bored softnet5 31124 167637 0 0 3 0x14200 bored softnet4 88359 437856 0 0 3 0x14200 bored softnet3 25421 416083 0 0 3 0x14200 bored softnet2 82784 256238 0 0 3 0x14200 bored softnet1 69781 391804 0 0 3 0x14200 bored softnet0 98938 106416 0 0 3 0x14200 smrbar systqmp 97532 56067 0 0 3 0x14200 bored systq 31212 441472 0 0 3 0x14200 tmoslp softclockmp 58446 215752 0 0 3 0x40014200 tmoslp softclock 36267 395765 0 0 3 0x40014200 idle0 1 238004 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839f5df8) #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 33378 (syz-executor) thread 0xffff800036c094a8 (229725) exclusive rwlock uobjlk r = 0 (0xfffffd805dad2c18) #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 (0xffffffff839f5df8) #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 33378 (syz-executor) thread 0xffff800036c08f88 (220496) exclusive rrwlock inode r = 0 (0xfffffd806b43c208) #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 80057 (syz-executor) thread 0xffff8000353f8f80 (340263) exclusive rrwlock inode r = 0 (0xfffffd806b43c330) #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 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 98938 (systqmp) thread 0xffff8000ffffe520 (106416) shared rwlock systqmp r = 0 (0xffffffff838bef88) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10211 11156K 11413K 166960K 11721 0 pcb 17 13K 13K 166960K 59 0 rtable 209 6K 7K 166960K 271 0 pf 34 17K 81K 166960K 59 0 ifaddr 43 7K 8K 166960K 53 0 ifgroup 55 2K 2K 166960K 70 0 sysctl 3 1K 9K 166960K 9 0 counters 68 36K 37K 166960K 84 0 ioctlops 0 0K 4K 166960K 1504 0 iov 0 0K 24K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1394 88K 88K 166960K 1636 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 12 5K 5K 166960K 76 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 85K 166960K 362 0 sigio 0 0K 0K 166960K 5 0 proc 72 115K 180K 166960K 550 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 35 0 in_multi 99 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 3 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 385 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 248 176K 185K 166960K 4991 0 UVM aobj 9 6K 6K 166960K 10 0 pinsyscall 42 84K 102K 166960K 1454 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 12 0 NDP 12 0K 1K 166960K 33 0 temp 51 8677K 8749K 166960K 16194 0 kqueue 14 22K 30K 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 47 0 44 1 0 1 1 0 8 0 rtentry 176 97 0 3 5 0 5 5 0 8 0 unpcb 144 183 0 164 4 0 4 4 0 8 3 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 49 0 45 1 0 1 1 0 8 0 arp 128 10 0 0 1 0 1 1 0 8 0 inpcb 328 315 0 305 7 0 7 7 0 8 6 nd6 144 16 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 6 0 6 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 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 24 0 0 1 0 1 1 0 8 0 pfstkey 128 24 0 0 1 0 1 1 0 8 0 pfstate 384 24 0 0 3 0 3 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 473 0 37 30 0 30 30 0 8 2 art_table 40 474 0 37 5 0 5 5 0 8 0 art_node 32 97 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 71 0 61 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2010 0 502 95 0 95 95 0 8 0 ffsino 296 2010 0 502 117 0 117 117 0 8 0 nchpl 144 2522 0 832 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 2283 0 0 47 0 47 47 0 8 0 vnodes 216 2283 0 0 127 0 127 127 0 8 0 namei 1024 8240 0 8240 2 1 1 2 0 8 1 percpumem 16 57 0 8 1 0 1 1 0 8 0 kstatmem 264 36 0 10 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 13510 0 13507 6 2 4 4 1 8 3 plimitpl 152 69 0 50 1 0 1 1 0 8 0 sigapl 424 670 0 616 7 0 7 7 0 8 0 knotepl 120 314 0 0 10 0 10 10 0 8 0 kqueuepl 224 80 0 70 2 0 2 2 0 8 1 pipepl 344 125 0 96 3 0 3 3 0 8 0 fdescpl 528 646 0 615 3 0 3 3 0 8 0 filepl 160 3094 0 2866 13 0 13 13 0 8 2 lockfpl 104 198 0 194 1 0 1 1 0 8 0 lockfspl 48 89 0 85 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 309 0 295 1 0 1 1 0 8 0 zombiepl 144 617 0 616 1 0 1 1 0 8 0 processpl 1248 670 0 616 5 0 5 5 0 8 0 procpl 656 1110 0 1045 7 0 7 7 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 752 548 0 516 11 0 11 11 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 72 0 0 2 0 2 2 0 8 0 mbufpl 256 224 0 0 14 0 14 14 0 8 0 bufpl 280 5920 0 128 414 0 414 414 0 8 0 anonpl 32 9530 0 0 77 0 77 77 0 246 0 amapchunkpl 152 15541 0 15043 30 2 28 28 0 158 6 amappl16 200 2956 0 2910 16 0 16 16 0 8 7 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 119 0 107 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 1293 0 1263 3 1 2 2 0 8 0 amappl11 160 70 0 56 1 0 1 1 0 8 0 amappl10 152 87 0 87 1 1 0 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 24 0 21 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 112 121 0 112 1 0 1 1 0 8 0 amappl4 104 300 0 281 1 0 1 1 0 8 0 amappl3 96 2827 0 2711 4 0 4 4 0 8 0 amappl2 88 633 0 572 2 0 2 2 0 8 0 amappl1 80 9228 0 8629 15 0 15 15 0 8 2 amappl 88 4265 0 4096 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 9 0 1 1 0 1 1 0 8 0 uaddrrnd 24 646 0 615 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 646 0 615 1 0 1 1 0 8 0 vmmpekpl 168 6900 0 6861 2 0 2 2 0 8 0 vmmpepl 168 47783 0 45789 102 0 102 102 0 357 6 vmsppl 488 645 0 615 5 0 5 5 0 8 1 rwobjpl 80 18210 0 14968 71 0 71 71 0 8 0 pdppl 4096 1300 0 1230 96 24 72 82 0 8 2 pvpl 32 16500 0 0 134 0 134 134 0 265 0 pmappl 256 645 0 615 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 270 0 28 7 0 7 7 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(ffffffff833f9ada) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839f5de8) at mtx_enter_try+0x1da sys/kern/kern_lock.c:300 mtx_enter(ffffffff839f5de8) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd800814dea8) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800814dea8) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800814dea8) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80683c0378,1000,ffff80003c47ed78,ffff80003c47ed5c,0,2,427c5dac7f94a714,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c47ef90,ffff80003c47efc8,ffff80003c47ee10,ffff80003c47edf8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c47ef90,ffff80003c47efc8,ffff80003c47ef10) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806ef2c5c0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c47f120,200000001c00) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c47f120) at usertrap+0x403 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7aef09812380, 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 __mp_lock(ffffffff83a04b50) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83a04b50) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 end trace frame: 0x0, count: 11 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 __mp_lock(ffffffff83a04b50) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83a04b50) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 end trace frame: 0x0, count: -4