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+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 211636 99513 0 0 0 0 syz-executor.6 *202914 92886 0 0x2 0 1K syz-executor.0 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a37af) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82826740,ffffffff82814e0c,136,ffffffff827efb11) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80691d5b70) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80691d5b70) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179 buf_put(fffffd80691d5b70) at buf_put+0x165 sys/kern/vfs_bio.c:130 brelse(fffffd80691d5b70) at brelse+0x5c3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd806b729cc8,2,fffffd807f7d66e8,ffff80002a1ce550,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806608b660,0,4,fffffd807f7d66e8) at ffs_truncate+0xf22 sys/ufs/ffs/ffs_inode.c:326 ufs_rmdir(ffff800033f85e88) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd807a16daf8,fffffd806b729cc8,ffff800033f85f68) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff80002a1ce550,ffffff9c,7002072b2360,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff800033f860e0) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7002072b2350, count: 1 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a37af) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82826740,ffffffff82814e0c,136,ffffffff827efb11) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80691d5b70) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80691d5b70) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179 buf_put(fffffd80691d5b70) at buf_put+0x165 sys/kern/vfs_bio.c:130 brelse(fffffd80691d5b70) at brelse+0x5c3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd806b729cc8,2,fffffd807f7d66e8,ffff80002a1ce550,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806608b660,0,4,fffffd807f7d66e8) at ffs_truncate+0xf22 sys/ufs/ffs/ffs_inode.c:326 ufs_rmdir(ffff800033f85e88) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd807a16daf8,fffffd806b729cc8,ffff800033f85f68) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff80002a1ce550,ffffff9c,7002072b2360,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff800033f860e0) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7002072b2350, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800033f85970 rbx 0xffff800029d2cba7 rdx 0 rcx 0xffff80002a1ce550 rax 0xffff800029d2bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa61255696b6eb2bf r11 0xe3176f360c9f08ab r12 0xffff800029d2c9a8 r13 0 r14 0 r15 0x1 rip 0xffffffff81f2cedc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800033f85960 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) tid=202914 pid=92886 tcnt=1 stat=onproc flags process=2 proc=0 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a26f7f8,0xffff80002a1cd2c8 process=0xffff8000ffff3258 user=0xffff800033f81000, vmspace=0xfffffd8069bbe928 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12635 322463 29894 0 2 0 syz-executor.3 12635 9122 29894 0 3 0x4000080 rest syz-executor.3 12635 488774 29894 0 3 0x4000080 bell syz-executor.3 99513 211636 47048 0 7 0 syz-executor.6 99094 354384 84523 0 2 0 syz-executor.5 29894 478973 85176 0 3 0x82 nanoslp syz-executor.3 91289 303393 0 0 3 0x14200 bored sosplice 93062 149665 0 0 3 0x14200 acct acct *92886 202914 85176 0 7 0x2 syz-executor.0 47048 119436 85176 0 3 0x82 nanoslp syz-executor.6 88314 352039 18023 0 3 0x100082 netio arp 18023 222163 1 0 3 0x10008a sigsusp sh 83459 433102 85176 0 3 0x82 nanoslp syz-executor.7 84523 470219 85176 0 3 0x82 nanoslp syz-executor.5 27714 404827 85176 0 3 0x82 nanoslp syz-executor.4 33243 407165 85176 0 3 0x82 nanoslp syz-executor.2 4760 266645 85176 0 2 0x2 syz-executor.1 85176 294456 95998 0 3 0x2000082 thrsleep syz-fuzzer 85176 489605 95998 0 3 0x6000082 nanoslp syz-fuzzer 85176 199477 95998 0 3 0x6000082 thrsleep syz-fuzzer 85176 204547 95998 0 3 0x6000082 wait syz-fuzzer 85176 369586 95998 0 3 0x6000082 wait syz-fuzzer 85176 385287 95998 0 3 0x6000082 wait syz-fuzzer 85176 163876 95998 0 3 0x6000082 wait syz-fuzzer 85176 207522 95998 0 3 0x6000082 wait syz-fuzzer 85176 382405 95998 0 3 0x6000082 wait syz-fuzzer 85176 393298 95998 0 3 0x6000082 thrsleep syz-fuzzer 85176 403964 95998 0 3 0x6000082 thrsleep syz-fuzzer 85176 516616 95998 0 3 0x6000082 wait syz-fuzzer 85176 214137 95998 0 3 0x6000082 kqread syz-fuzzer 85176 424599 95998 0 3 0x6000082 thrsleep syz-fuzzer 85176 185807 95998 0 3 0x6000082 wait syz-fuzzer 95998 112299 24952 0 3 0x10008a sigsusp ksh 24952 415402 58805 0 3 0x9a kqread sshd 45209 124058 1 0 3 0x100083 ttyin getty 58805 124027 1 0 3 0x88 kqread sshd 5255 474199 67809 74 3 0x1100092 bpf pflogd 67809 357019 1 0 3 0x80 netio pflogd 60195 185490 89077 73 2 0x1100010 syslogd 89077 516598 1 0 3 0x100082 netio syslogd 34009 92667 1 0 3 0x100080 kqread resolvd 37809 498008 41854 77 3 0x100092 kqread dhcpleased 17359 74441 41854 77 3 0x100092 kqread dhcpleased 41854 510477 1 0 3 0x80 kqread dhcpleased 90171 338289 0 0 3 0x14200 bored smr 48468 177798 0 0 2 0x14200 zerothread 30749 262203 0 0 3 0x14200 aiodoned aiodoned 86327 312145 0 0 3 0x14200 syncer update 98872 182762 0 0 3 0x14200 cleaner cleaner 20584 165066 0 0 3 0x14200 reaper reaper 83563 411172 0 0 3 0x14200 pgdaemon pagedaemon 10942 468136 0 0 3 0x14200 bored viomb 57294 480971 0 0 3 0x40014200 acpi0 acpi0 71900 406153 0 0 3 0x40014200 idle1 3141 83930 0 0 3 0x14200 bored softnet3 16856 236265 0 0 3 0x14200 bored softnet2 57251 61071 0 0 3 0x14200 bored softnet1 46125 60597 0 0 3 0x14200 bored softnet0 18886 153860 0 0 3 0x14200 bored systqmp 76384 104863 0 0 3 0x14200 bored systq 37528 375253 0 0 3 0x14200 tmoslp softclockmp 33058 368169 0 0 3 0x40014200 tmoslp softclock 50040 65588 0 0 3 0x40014200 idle0 1 506352 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 99513 (syz-executor.6) thread 0xffff80002a1fbd58 (211636) exclusive rwlock amaplk r = 0 (0xfffffd8069c0d520) #0 witness_lock+0x447 #1 uvm_fault_check+0x41a sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8069bbe680) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 92886 (syz-executor.0) thread 0xffff80002a1ce550 (202914) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82cb60c0) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46d sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 biowait+0x91 sys/kern/vfs_bio.c:1278 #5 bwrite+0x21c sys/kern/vfs_bio.c:769 #6 ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113 #7 ffs_truncate+0xce7 #8 ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 #9 VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 #10 dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 #11 syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806608b6f8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #13 syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806608b5e8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #8 syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 #9 Xsyscall+0x128 Process 4760 (syz-executor.1) thread 0xffff80002a20c560 (266645) exclusive rrwlock inode r = 0 (0xfffffd806bb89e78) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069c02c50) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10203 6549K 6606K 166960K 11389 0 pcb 13 8K 8K 166960K 26 0 rtable 234 6K 6K 166960K 398 0 pf 32 9K 10K 166960K 47 0 ifaddr 45 15K 15K 166960K 53 0 ifgroup 55 2K 2K 166960K 63 0 sysctl 1 0K 0K 166960K 1 0 counters 62 36K 36K 166960K 66 0 ioctlops 0 0K 4K 166960K 1490 0 iov 0 0K 18K 166960K 18 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1296 81K 81K 166960K 1452 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 0K 0K 166960K 73 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 81K 166960K 337 0 proc 68 91K 115K 166960K 591 0 subproc 117 7K 7K 166960K 130 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 10 0 in_multi 99 7K 7K 166960K 111 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 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 415 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 343 82K 86K 166960K 5768 0 UVM aobj 11 2K 4K 166960K 17 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 0K 166960K 32 0 temp 52 5918K 5998K 166960K 9958 0 kqueue 12 18K 24K 166960K 37 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 22 0 0 1 0 1 1 0 8 0 rtpcb 120 45 0 41 1 0 1 1 0 8 0 rtentry 112 125 0 15 4 0 4 4 0 8 0 unpcb 144 171 0 154 4 3 1 4 0 8 0 syncache 312 4 0 4 1 1 0 1 0 8 0 tcpqe 32 90 0 90 1 1 0 1 0 8 0 tcpcb 808 54 0 50 4 3 1 4 0 8 0 arp 120 21 0 3 1 0 1 1 0 8 0 inpcb 368 347 0 340 12 8 4 7 0 8 3 nd6 136 27 0 3 1 0 1 1 0 8 0 kcovpl 48 10 0 1 1 0 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 32 0 28 1 0 1 1 0 8 0 pfstkey 128 32 0 28 1 0 1 1 0 8 0 pfstate 376 32 0 28 3 2 1 3 0 8 0 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 256 500 0 47 30 1 29 29 0 8 0 art_table 32 501 0 47 4 0 4 4 0 8 0 art_node 16 124 0 24 1 0 1 1 0 8 0 semapl 112 71 0 61 1 0 1 1 0 8 0 shmpl 112 14 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1809 0 359 91 0 91 91 0 8 0 ffsino 272 1810 0 359 97 0 97 97 0 8 0 nchpl 144 2357 0 708 63 0 63 63 0 8 0 uvmvnodes 80 1983 0 0 41 0 41 41 0 8 0 vnodes 216 1983 0 0 111 0 111 111 0 8 0 namei 1024 8441 0 8440 4 3 1 2 0 8 0 percpumem 16 46 0 2 1 0 1 1 0 8 0 kstatmem 264 28 0 4 2 0 2 2 0 8 0 scxspl 216 12405 0 12405 10 9 1 8 1 8 1 plimitpl 152 42 0 25 1 0 1 1 0 8 0 sigapl 424 659 0 608 7 1 6 7 0 8 0 futexpl 64 1767 0 1767 5 4 1 1 0 8 1 knotepl 120 107 0 0 4 0 4 4 0 8 0 kqueuepl 216 47 0 37 1 0 1 1 0 8 0 pipepl 320 172 0 141 3 0 3 3 0 8 0 fdescpl 496 639 0 609 5 0 5 5 0 8 0 filepl 152 3159 0 2895 18 7 11 14 0 8 0 lockfpl 104 44 0 42 1 0 1 1 0 8 0 lockfspl 48 23 0 21 1 0 1 1 0 8 0 sessionpl 144 26 0 8 1 0 1 1 0 8 0 pgrppl 48 26 0 8 1 0 1 1 0 8 0 ucredpl 104 562 0 549 1 0 1 1 0 8 0 zombiepl 144 611 0 608 2 1 1 1 0 8 0 processpl 1072 659 0 608 4 0 4 4 0 8 0 procpl 680 1089 0 1022 9 2 7 8 0 8 0 sosppl 168 15 0 15 3 3 0 1 0 8 0 sockpl 488 563 0 535 24 15 9 13 0 8 5 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 261 0 0 33 3 30 33 0 8 1 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 325 0 0 18 0 18 18 0 8 0 bufpl 288 4900 0 142 340 0 340 340 0 8 0 anonpl 24 238292 0 225476 111 0 111 111 0 186 24 amapchunkpl 152 19300 0 18452 53 6 47 50 0 158 9 amappl16 200 6315 0 5938 21 0 21 21 0 8 0 amappl15 192 16 0 16 1 1 0 1 0 8 0 amappl14 184 172 0 158 2 1 1 2 0 8 0 amappl13 176 4 0 3 1 0 1 1 0 8 0 amappl12 168 1337 0 1306 3 1 2 2 0 8 0 amappl11 160 56 0 41 1 0 1 1 0 8 0 amappl10 152 34 0 24 1 0 1 1 0 8 0 amappl9 144 188 0 186 1 0 1 1 0 8 0 amappl8 136 240 0 182 3 0 3 3 0 8 0 amappl7 128 182 0 156 2 0 2 2 0 8 0 amappl6 120 305 0 295 1 0 1 1 0 8 0 amappl5 112 136 0 124 1 0 1 1 0 8 0 amappl4 104 463 0 432 2 1 1 2 0 8 0 amappl3 96 3653 0 3565 6 3 3 4 0 8 0 amappl2 88 1063 0 987 3 1 2 3 0 8 0 amappl1 80 10833 0 10257 23 10 13 23 0 8 0 amappl 88 5209 0 4988 7 0 7 7 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 16 0 6 1 0 1 1 0 8 0 uaddrrnd 24 640 0 610 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 640 0 610 1 0 1 1 0 8 0 vmmpekpl 168 11287 0 11219 4 0 4 4 0 8 0 vmmpepl 168 63314 0 61016 159 34 125 125 0 357 18 vmsppl 464 639 0 610 5 0 5 5 0 8 0 rwobjpl 56 25127 0 21626 51 1 50 50 0 8 0 pdppl 4096 1288 0 1220 154 80 74 80 0 8 6 pvpl 32 500425 0 481276 363 122 241 361 0 265 75 pmappl 248 639 0 610 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 804 0 103 21 0 21 21 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82b72ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82cb5eb8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb5eb8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002f1007f0,ffff800000685b80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge1_untramp() at Xintr_ioapic_edge1_untramp+0x18f Xspllower() at Xspllower+0x1d pmap_enter(fffffd8067baf4e8,7c0a849c9000,666d2000,1,20) at pmap_enter+0x9b7 pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:444 [inline] pmap_enter(fffffd8067baf4e8,7c0a849c9000,666d2000,1,20) at pmap_enter+0x9b7 sys/arch/amd64/amd64/pmap.c:2892 uvm_fault_upper_lookup(ffff80002f100bc0,ffff80002f100bf8,ffff80002f100ac0,ffff80002f100b40) at uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895 uvm_fault(fffffd8069bbe588,7c0a849c8000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002f100d40,7c0a849c8df0) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002f100d40) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7c0a849c8e20, count: 2 ddb{0}> trace x86_ipi_db(ffffffff82b72ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82cb5eb8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb5eb8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002f1007f0,ffff800000685b80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge1_untramp() at Xintr_ioapic_edge1_untramp+0x18f Xspllower() at Xspllower+0x1d pmap_enter(fffffd8067baf4e8,7c0a849c9000,666d2000,1,20) at pmap_enter+0x9b7 pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:444 [inline] pmap_enter(fffffd8067baf4e8,7c0a849c9000,666d2000,1,20) at pmap_enter+0x9b7 sys/arch/amd64/amd64/pmap.c:2892 uvm_fault_upper_lookup(ffff80002f100bc0,ffff80002f100bf8,ffff80002f100ac0,ffff80002f100b40) at uvm_fault_upper_lookup+0x2c0 sys/uvm/uvm_fault.c:895 uvm_fault(fffffd8069bbe588,7c0a849c8000,0,1) at uvm_fault+0x129 sys/uvm/uvm_fault.c:605 upageflttrap(ffff80002f100d40,7c0a849c8df0) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002f100d40) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7c0a849c8e20, count: -13 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a37af) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82826740,ffffffff82814e0c,136,ffffffff827efb11) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80691d5b70) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80691d5b70) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179 buf_put(fffffd80691d5b70) at buf_put+0x165 sys/kern/vfs_bio.c:130 brelse(fffffd80691d5b70) at brelse+0x5c3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd806b729cc8,2,fffffd807f7d66e8,ffff80002a1ce550,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806608b660,0,4,fffffd807f7d66e8) at ffs_truncate+0xf22 sys/ufs/ffs/ffs_inode.c:326 ufs_rmdir(ffff800033f85e88) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd807a16daf8,fffffd806b729cc8,ffff800033f85f68) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff80002a1ce550,ffffff9c,7002072b2360,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff800033f860e0) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7002072b2350, count: 1 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a37af) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82826740,ffffffff82814e0c,136,ffffffff827efb11) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80691d5b70) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80691d5b70) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179 buf_put(fffffd80691d5b70) at buf_put+0x165 sys/kern/vfs_bio.c:130 brelse(fffffd80691d5b70) at brelse+0x5c3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd806b729cc8,2,fffffd807f7d66e8,ffff80002a1ce550,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806608b660,0,4,fffffd807f7d66e8) at ffs_truncate+0xf22 sys/ufs/ffs/ffs_inode.c:326 ufs_rmdir(ffff800033f85e88) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd807a16daf8,fffffd806b729cc8,ffff800033f85f68) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff80002a1ce550,ffffff9c,7002072b2360,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff800033f860e0) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7002072b2350, count: -14