panic: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_biomem.c", line 310 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *519959 27432 0 0x2 0x1 1K syz-executor 188020 60125 0 0x14000 0x200 0 reaper db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83151ce5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8310856b,ffffffff830aa156,136,ffffffff8308f24a) at __assert+0x29 buf_free_pages(fffffd807bbd7240) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd807bbd7240) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd807bbd7240) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd807bbd7240) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd8063a246f8,2,ffffffffffffffff,ffff8000ffffc518,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2043 ffs_truncate(fffffd80640ba000,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a5143e8) at ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8063a246f8,ffff8000ffffc518) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd8063a246f8) at vrele+0x129 sys/kern/vfs_subr.c:845 ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:710 ktrsysret(ffff8000ffffc518,b,4,ffff80002a514660) at ktrsysret+0x19d sys/kern/kern_ktrace.c:209 end trace frame: 0xffff80002a514700, count: 0 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: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_biomem.c", line 310 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83151ce5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8310856b,ffffffff830aa156,136,ffffffff8308f24a) at __assert+0x29 buf_free_pages(fffffd807bbd7240) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd807bbd7240) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd807bbd7240) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd807bbd7240) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd8063a246f8,2,ffffffffffffffff,ffff8000ffffc518,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2043 ffs_truncate(fffffd80640ba000,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a5143e8) at ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8063a246f8,ffff8000ffffc518) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd8063a246f8) at vrele+0x129 sys/kern/vfs_subr.c:845 ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:710 ktrsysret(ffff8000ffffc518,b,4,ffff80002a514660) at ktrsysret+0x19d sys/kern/kern_ktrace.c:209 syscall(ffff80002a514710) at syscall+0xa43 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a514710) at syscall+0xa43 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a8fdae52680, count: -16 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a513ee0 rbx 0xffff800029b5cdc7 rdx 0 rcx 0xffff8000ffffc518 rax 0xffff800029b5bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc74d7191faa8f286 r11 0xd849963d71ed5059 r12 0xffff800029b5cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff81bee6b5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a513ed0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=519959 pid=27432 tcnt=1 stat=onproc flags process=2 proc=1 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a43fbf0,0xffff8000ffffd968 process=0xffff80002a3c46d8 user=0xffff80002a50f000, vmspace=0xfffffd807eb8d8e8 estcpu=0, cpticks=1, pctcpu=0.16, user=1, sys=115, intr=1 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 84676 337858 6888 0 2 0 syz-executor 51263 297097 33318 0 3 0x82 sbwait sshd-session 86771 368017 0 0 3 0x14200 bored sosplice 48312 396975 6888 0 3 0x82 wait syz-executor *27432 519959 6888 0 7 0x3 syz-executor 36199 426672 6888 0 3 0x82 wait syz-executor 31940 444466 6888 0 3 0x82 wait syz-executor 13507 514086 6888 0 2 0x82 syz-executor 53487 298892 6888 0 3 0x82 wait syz-executor 72148 157515 6888 0 3 0x82 wait syz-executor 6888 279104 44182 0 2 0x2 syz-executor 44182 168568 96682 0 3 0x10008a sigsusp ksh 96682 434095 37046 0 3 0x98 kqread sshd-session 37046 265667 33318 0 3 0x92 kqread sshd-session 94243 247850 1 0 3 0x100083 ttyin getty 33318 159962 1 0 3 0x88 kqread sshd 52307 222745 62507 74 3 0x1100092 bpf pflogd 62507 275522 1 0 3 0x80 sbwait pflogd 61379 244346 36040 73 3 0x1100010 ffs_fsync syslogd 36040 412132 1 0 3 0x100082 sbwait syslogd 31361 384777 1 0 3 0x100080 kqread resolvd 61636 175781 77853 77 3 0x100092 kqread dhcpleased 23851 226103 77853 77 3 0x100092 kqread dhcpleased 77853 160516 1 0 3 0x80 kqread dhcpleased 32730 305768 0 0 3 0x14200 bored smr 37769 471207 0 0 3 0x14200 pgzero zerothread 16042 396362 0 0 3 0x14200 aiodoned aiodoned 16203 222102 0 0 3 0x14200 syncer update 58186 487315 0 0 3 0x14200 cleaner cleaner 60125 188020 0 0 7 0x14200 reaper 95016 83828 0 0 3 0x14200 pgdaemon pagedaemon 12870 171789 0 0 3 0x14200 bored viomb 21105 180108 0 0 3 0x40014200 acpi0 acpi0 47438 464918 0 0 3 0x40014200 idle1 60577 449450 0 0 3 0x14200 bored softnet3 17037 285431 0 0 3 0x14200 bored softnet2 29711 493783 0 0 3 0x14200 bored softnet1 45542 146910 0 0 2 0x14200 softnet0 43084 429849 0 0 3 0x14200 bored systqmp 39588 115613 0 0 3 0x14200 bored systq 27670 47251 0 0 3 0x14200 tmoslp softclockmp 32498 168537 0 0 3 0x40014200 tmoslp softclock 19572 494588 0 0 3 0x40014200 idle0 1 108839 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &sched_lock r = 0 (0xffffffff835bb358) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 wakeup_n+0x54 sys/kern/kern_synch.c:567 #4 uvm_pmr_freepages+0x3bd sys/uvm/uvm_pmemrange.c:1334 #5 pmap_do_remove+0x873 sys/arch/amd64/amd64/pmap.c:1939 #6 uvm_unmap_kill_entry_withlock+0x26f sys/uvm/uvm_map.c:1863 #7 uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2496 #8 uvmspace_free+0xcd sys/uvm/uvm_map.c:3420 #9 reaper+0x246 sys/kern/kern_exit.c:477 #10 proc_trampoline+0x10 exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff836414e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0xb5 sys/kern/kern_lock.c:239 #3 uvm_pmr_freepages+0x165 sys/uvm/uvm_pmemrange.c:1320 #4 pmap_do_remove+0x873 sys/arch/amd64/amd64/pmap.c:1939 #5 uvm_unmap_kill_entry_withlock+0x26f sys/uvm/uvm_map.c:1863 #6 uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2496 #7 uvmspace_free+0xcd sys/uvm/uvm_map.c:3420 #8 reaper+0x246 sys/kern/kern_exit.c:477 #9 proc_trampoline+0x10 Process 27432 (syz-executor) thread 0xffff8000ffffc518 (519959) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8365d108) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:414 #4 biowait+0xc1 sys/kern/vfs_bio.c:1246 #5 bwrite+0x2e5 sys/kern/vfs_bio.c:758 #6 ffs_update+0x34f sys/ufs/ffs/ffs_inode.c:111 #7 ffs_truncate+0xcb6 #8 ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 #9 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 #10 vrele+0x129 sys/kern/vfs_subr.c:845 #11 ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] #11 ktrwriteraw+0x382 sys/kern/kern_ktrace.c:710 #12 ktrsysret+0x19d sys/kern/kern_ktrace.c:209 #13 syscall+0xa43 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #13 syscall+0xa43 sys/arch/amd64/amd64/trap.c:598 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80640ba0a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vrele+0xd0 sys/kern/vfs_subr.c:836 #6 ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] #6 ktrwriteraw+0x382 sys/kern/kern_ktrace.c:710 #7 ktrsysret+0x19d sys/kern/kern_ktrace.c:209 #8 syscall+0xa43 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #8 syscall+0xa43 sys/arch/amd64/amd64/trap.c:598 #9 Xsyscall+0x128 Process 61379 (syslogd) thread 0xffff8000ffffb960 (244346) exclusive rrwlock inode r = 0 (0xfffffd806e33b628) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2929 #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 60125 (reaper) thread 0xffff8000ffffcf38 (188020) exclusive rwlock vmmaplk r = 0 (0xfffffd806bfff4a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_map_teardown+0x5e sys/uvm/uvm_map.c:2464 #4 uvmspace_free+0xcd sys/uvm/uvm_map.c:3420 #5 reaper+0x246 sys/kern/kern_exit.c:477 #6 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10188 11017K 11278K 166960K 11491 0 pcb 17 12K 12K 166960K 52 0 rtable 193 6K 7K 166960K 433 0 pf 31 17K 18K 166960K 54 0 ifaddr 35 6K 7K 166960K 51 0 ifgroup 47 2K 2K 166960K 63 0 sysctl 1 1K 1K 166960K 2 0 counters 60 35K 36K 166960K 72 0 ioctlops 0 0K 4K 166960K 1529 0 iov 0 0K 12K 166960K 10 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1364 86K 86K 166960K 1566 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 83 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 10 30K 97K 166960K 332 0 sigio 0 0K 0K 166960K 5 0 proc 72 91K 140K 166960K 558 0 subproc 63 3K 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 37 0 in_multi 77 5K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 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 452 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 197 64K 75K 166960K 4615 0 UVM aobj 7 2K 4K 166960K 9 0 pinsyscall 37 74K 106K 166960K 1425 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 5 0 NDP 10 0K 2K 166960K 32 0 temp 36 6891K 6959K 166960K 15104 0 kqueue 13 20K 26K 166960K 63 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 43 0 40 1 0 1 1 0 8 0 rtentry 112 111 0 23 4 0 4 4 0 8 0 unpcb 144 332 0 315 6 5 1 6 0 8 0 syncache 336 9 0 9 2 2 0 1 0 8 0 tcpcb 808 74 0 68 2 1 1 2 0 8 0 arp 120 18 0 4 1 0 1 1 0 8 0 inpcb 376 366 0 357 8 6 2 8 0 8 0 nd6 136 24 0 6 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 8 0 1 1 0 1 1 0 8 0 ppxss 1168 4 0 4 1 1 0 1 0 8 0 pffrag 232 18 0 17 2 1 1 1 0 482 0 pffrnode 88 18 0 17 2 1 1 1 0 8 0 pffrent 40 39 0 38 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 47 0 20 1 0 1 1 0 8 0 pfstkey 128 47 0 20 2 0 2 2 0 8 0 pfstate 376 46 0 20 5 0 5 5 0 8 1 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 88 29 2 27 29 0 8 1 art_table 32 454 0 88 4 0 4 4 0 8 0 art_node 16 110 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 80 0 70 1 0 1 1 0 8 0 shmpl 112 6 0 2 2 1 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1984 0 478 95 0 95 95 0 8 0 ffsino 280 1984 0 478 109 0 109 109 0 8 0 nchpl 144 2466 0 775 63 0 63 63 0 8 0 uvmvnodes 80 2163 0 0 45 0 45 45 0 8 0 vnodes 216 2163 0 0 121 0 121 121 0 8 0 namei 1024 8315 0 8315 2 2 0 2 0 8 0 percpumem 16 50 0 6 1 0 1 1 0 8 0 kstatmem 264 32 0 12 2 0 2 2 0 8 0 scxspl 216 11530 0 11529 11 9 2 8 1 8 1 plimitpl 152 46 0 28 1 0 1 1 0 8 0 sigapl 424 635 0 584 7 1 6 7 0 8 0 futexpl 64 3137 0 3137 1 1 0 1 0 8 0 knotepl 120 463 0 0 15 0 15 15 0 8 0 kqueuepl 216 109 0 100 3 2 1 3 0 8 0 pipepl 328 123 0 95 3 0 3 3 0 8 0 fdescpl 504 615 0 590 6 2 4 6 0 8 0 filepl 152 3387 0 3184 16 6 10 16 0 8 0 lockfpl 104 57 0 55 1 0 1 1 0 8 0 lockfspl 48 27 0 25 1 0 1 1 0 8 0 sessionpl 144 25 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 17 1 0 1 1 0 8 0 ucredpl 104 440 0 426 1 0 1 1 0 8 0 zombiepl 144 591 0 584 1 0 1 1 0 8 0 processpl 1168 635 0 584 5 1 4 5 0 8 0 procpl 648 984 0 925 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 688 745 0 716 16 13 3 15 0 8 0 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 193 0 0 13 0 13 13 0 8 0 bufpl 280 5337 0 131 372 0 372 372 0 8 0 anonpl 24 132947 0 129633 73 21 52 52 0 185 24 amapchunkpl 152 14583 0 14187 32 0 32 32 0 158 10 amappl16 200 2818 0 2792 23 20 3 14 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 114 0 100 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 1257 0 1228 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 1 0 1 0 8 0 amappl9 144 274 0 274 1 1 0 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 110 0 97 1 0 1 1 0 8 0 amappl6 120 185 0 180 1 0 1 1 0 8 0 amappl5 112 122 0 113 1 0 1 1 0 8 0 amappl4 104 321 0 302 1 0 1 1 0 8 0 amappl3 96 2592 0 2499 4 0 4 4 0 8 0 amappl2 88 661 0 593 2 0 2 2 0 8 0 amappl1 80 9073 0 8421 15 1 14 14 0 8 0 amappl 88 4220 0 4082 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 7 0 7 2 2 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 8 0 2 1 0 1 1 0 8 0 uaddrrnd 24 615 0 586 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 615 0 586 1 0 1 1 0 8 0 vmmpekpl 168 6852 0 6807 4 1 3 3 0 8 0 vmmpepl 168 45406 0 43562 107 15 92 97 0 357 0 vmsppl 456 614 0 586 5 0 5 5 0 8 0 rwobjpl 64 18212 0 15067 54 1 53 53 0 8 0 pdppl 4096 1237 0 1172 103 30 73 87 0 8 8 pvpl 32 29804 0 0 241 0 241 241 0 265 0 pmappl 248 614 0 586 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 285 0 44 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83549ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8365cf00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8365cf00) at __mp_lock+0x192 sys/kern/kern_lock.c:144 reaper(ffff8000ffffcf38) at reaper+0x24b sys/kern/kern_exit.c:478 end trace frame: 0x0, count: 10 ddb{0}> trace x86_ipi_db(ffffffff83549ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8365cf00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8365cf00) at __mp_lock+0x192 sys/kern/kern_lock.c:144 reaper(ffff8000ffffcf38) at reaper+0x24b sys/kern/kern_exit.c:478 end trace frame: 0x0, count: -5 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:437 panic(ffffffff83151ce5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8310856b,ffffffff830aa156,136,ffffffff8308f24a) at __assert+0x29 buf_free_pages(fffffd807bbd7240) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd807bbd7240) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd807bbd7240) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd807bbd7240) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd8063a246f8,2,ffffffffffffffff,ffff8000ffffc518,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2043 ffs_truncate(fffffd80640ba000,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a5143e8) at ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8063a246f8,ffff8000ffffc518) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd8063a246f8) at vrele+0x129 sys/kern/vfs_subr.c:845 ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:710 ktrsysret(ffff8000ffffc518,b,4,ffff80002a514660) at ktrsysret+0x19d sys/kern/kern_ktrace.c:209 end trace frame: 0xffff80002a514700, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83151ce5) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8310856b,ffffffff830aa156,136,ffffffff8308f24a) at __assert+0x29 buf_free_pages(fffffd807bbd7240) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd807bbd7240) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd807bbd7240) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd807bbd7240) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd8063a246f8,2,ffffffffffffffff,ffff8000ffffc518,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2043 ffs_truncate(fffffd80640ba000,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a5143e8) at ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8063a246f8,ffff8000ffffc518) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd8063a246f8) at vrele+0x129 sys/kern/vfs_subr.c:845 ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff8000ffffc518,fffffd8063a246f8,fffffd807f7d3888,ffff80002a514590,ffff80002a514570) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:710 ktrsysret(ffff8000ffffc518,b,4,ffff80002a514660) at ktrsysret+0x19d sys/kern/kern_ktrace.c:209 syscall(ffff80002a514710) at syscall+0xa43 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a514710) at syscall+0xa43 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a8fdae52680, count: -16