M·'NqWýWFzGÀ!`Û®ï]Ð5/ÚH#/ ‡M4œàÓ¾Cƒ¨‰&/ù\7šžvÉôK»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 *485424 811 0 0x2000002 0x4000000 0K syz-fuzzer 457486 3796 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279fdb9) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281e294,ffffffff82807a1a,136,ffffffff827e6667) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd807670c938) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd807670c938) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179 buf_put(fffffd807670c938) at buf_put+0x165 sys/kern/vfs_bio.c:130 brelse(fffffd807670c938) at brelse+0x5c3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd80731ba948,2,fffffd807f7d6618,ffff800021217068,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd8059eb6cd0,0,4,fffffd807f7d6618) at ffs_truncate+0xf22 sys/ufs/ffs/ffs_inode.c:326 ufs_rmdir(ffff800021260f18) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd806f185cd8,fffffd80731ba948,ffff800021260ff8) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff800021217068,b,c0004d0b60,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff800021261170) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021261170) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2560c6190, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_biomem.c", line 310 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279fdb9) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281e294,ffffffff82807a1a,136,ffffffff827e6667) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd807670c938) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd807670c938) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179 buf_put(fffffd807670c938) at buf_put+0x165 sys/kern/vfs_bio.c:130 brelse(fffffd807670c938) at brelse+0x5c3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd80731ba948,2,fffffd807f7d6618,ffff800021217068,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd8059eb6cd0,0,4,fffffd807f7d6618) at ffs_truncate+0xf22 sys/ufs/ffs/ffs_inode.c:326 ufs_rmdir(ffff800021260f18) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd806f185cd8,fffffd80731ba948,ffff800021260ff8) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff800021217068,b,c0004d0b60,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff800021261170) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021261170) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2560c6190, count: -14 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800021260a00 rbx 0xffffffff82ba1b9f cpu_info_full_primary+0x2b9f rdx 0 rcx 0xffff800021217068 rax 0xffffffff82ba0ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd0b30285bc1dd961 r11 0x96412b9036baa547 r12 0xffffffff82ba19a0 cpu_info_full_primary+0x29a0 r13 0 r14 0 r15 0x1 rip 0xffffffff81a20d6c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000212609f0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-fuzzer) pid=485424 stat=onproc flags process=2000002 proc=4000000 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000212162d0,0xffff800021216b08 process=0xffff800021221d60 user=0xffff80002125c000, vmspace=0xfffffd806e3d2920 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 7068 376794 90484 0 2 0 syz-executor.7 7068 61999 90484 0 2 0x4000000 syz-executor.7 72695 34345 75814 0 3 0x80 nanoslp syz-executor.6 72695 500422 75814 0 3 0x4000080 fsleep syz-executor.6 4334 224179 30712 0 2 0 syz-executor.3 90484 430263 811 0 3 0x82 nanoslp syz-executor.7 75814 493276 811 0 3 0x82 nanoslp syz-executor.6 10010 292944 0 0 3 0x14200 acct acct 89054 416520 811 0 3 0x82 nanoslp syz-executor.0 30712 194645 811 0 3 0x82 nanoslp syz-executor.3 80001 58686 811 0 3 0x82 nanoslp syz-executor.1 89426 253063 811 0 3 0x82 nanoslp syz-executor.4 24744 500626 0 0 3 0x14280 nfsidl nfsio 9127 436205 0 0 3 0x14280 nfsidl nfsio 70769 236238 0 0 3 0x14280 nfsidl nfsio 62392 443220 0 0 3 0x14280 nfsidl nfsio 55126 133725 0 0 3 0x14280 nfsidl nfsio 25468 391582 0 0 3 0x14280 nfsidl nfsio 88748 119030 0 0 3 0x14280 nfsidl nfsio 49362 518595 0 0 3 0x14280 nfsidl nfsio 72082 284743 0 0 3 0x14280 nfsidl nfsio 32555 102389 0 0 3 0x14280 nfsidl nfsio 51419 430398 0 0 3 0x14280 nfsidl nfsio 51426 347853 0 0 3 0x14280 nfsidl nfsio 85671 6433 0 0 3 0x14280 nfsidl nfsio 36614 42371 0 0 3 0x14280 nfsidl nfsio 32064 514173 0 0 3 0x14280 nfsidl nfsio 25358 457974 0 0 3 0x14280 nfsidl nfsio 51848 210262 0 0 3 0x14280 nfsidl nfsio 77719 150115 0 0 3 0x14280 nfsidl nfsio 9846 196660 0 0 3 0x14280 nfsidl nfsio 22441 511357 0 0 3 0x14280 nfsidl nfsio 71305 159865 1 0 3 0x100083 ttyin getty 67897 234816 811 0 3 0x82 nanoslp syz-executor.2 57541 201702 0 0 3 0x14200 bored sosplice 811 174440 38372 0 3 0x2000082 wait syz-fuzzer 811 50333 38372 0 3 0x6000082 nanoslp syz-fuzzer * 811 485424 38372 0 7 0x6000002 syz-fuzzer 811 2136 38372 0 3 0x6000082 wait syz-fuzzer 811 256645 38372 0 3 0x6000082 thrsleep syz-fuzzer 811 511645 38372 0 3 0x6000082 thrsleep syz-fuzzer 811 197985 38372 0 3 0x6000082 kqread syz-fuzzer 811 285345 38372 0 3 0x6000082 thrsleep syz-fuzzer 811 349080 38372 0 3 0x6000082 thrsleep syz-fuzzer 811 71528 38372 0 3 0x6000082 thrsleep syz-fuzzer 811 43235 38372 0 3 0x6000082 thrsleep syz-fuzzer 811 511986 38372 0 3 0x6000082 wait syz-fuzzer 811 282711 38372 0 3 0x6000082 wait syz-fuzzer 811 1637 38372 0 3 0x6000082 wait syz-fuzzer 811 510391 38372 0 3 0x6000082 wait syz-fuzzer 811 151953 38372 0 3 0x6000082 wait syz-fuzzer 38372 203274 38280 0 3 0x10008a sigsusp ksh 38280 151566 54873 0 3 0x9a kqread sshd 54873 156361 1 0 3 0x88 kqread sshd 26161 474535 85894 74 3 0x1100092 bpf pflogd 85894 331807 1 0 3 0x80 netio pflogd 70745 247096 89485 73 3 0x1100090 kqread syslogd 89485 451861 1 0 3 0x100082 netio syslogd 75 78960 1 0 3 0x100080 kqread resolvd 37482 363475 3986 77 3 0x100092 kqread dhcpleased 70702 287117 3986 77 3 0x100092 kqread dhcpleased 3986 76921 1 0 3 0x80 kqread dhcpleased 30555 391317 0 0 3 0x14200 bored smr 94551 129238 0 0 2 0x14200 zerothread 1140 423787 0 0 3 0x14200 aiodoned aiodoned 46115 290589 0 0 3 0x14200 syncer update 26425 485818 0 0 3 0x14200 cleaner cleaner 3796 457486 0 0 7 0x14200 reaper 76368 157502 0 0 3 0x14200 pgdaemon pagedaemon 92247 251314 0 0 3 0x14200 bored viomb 59124 8064 0 0 3 0x40014200 acpi0 acpi0 108 397998 0 0 3 0x40014200 idle1 18709 445300 0 0 3 0x14200 bored softnet3 13424 210245 0 0 3 0x14200 bored softnet2 47519 301936 0 0 3 0x14200 bored softnet1 91244 496850 0 0 3 0x14200 bored softnet0 33387 395243 0 0 3 0x14200 bored systqmp 43596 105935 0 0 3 0x14200 bored systq 21397 166 0 0 3 0x40014200 bored softclock 90710 458544 0 0 3 0x40014200 idle0 1 134779 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 811 (syz-fuzzer) thread 0xffff800021217068 (485424) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d45578) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x4e3 sys/kern/sched_bsd.c:431 #3 sleep_finish+0x198 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+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #11 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8059eb6d68) #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+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f31b808) #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+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10225 6501K 7571K 78643K 13786 0 pcb 13 16K 18K 78643K 994 0 rtable 217 6K 7K 78643K 2245 0 pf 33 9K 10K 78643K 312 0 ifaddr 42 16K 18K 78643K 313 0 ifgroup 56 2K 2K 78643K 520 0 sysctl 3 1K 2K 78643K 16 0 counters 60 35K 36K 78643K 306 0 ioctlops 0 0K 4K 78643K 1769 0 iov 0 0K 32K 78643K 1865 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1443 90K 91K 78643K 13671 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 197 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 643 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 85K 78643K 17822 0 sigio 0 0K 0K 78643K 530 0 proc 70 91K 115K 78643K 2635 0 subproc 91 5K 6K 78643K 706 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 703 0 in_multi 88 6K 7K 78643K 717 0 ether_multi 1 0K 0K 78643K 7 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 247 1102K 1102K 78643K 247 0 exec 0 0K 1K 78643K 3651 0 pfkey data 0 0K 0K 78643K 5 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 438 85K 114K 78643K 175977 0 UVM aobj 131 4K 4K 78643K 135 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 400 0 NDP 12 0K 1K 78643K 241 0 temp 70 5875K 6004K 78643K 164515 0 kqueue 12 18K 26K 78643K 1428 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> 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 120 526 0 523 5 4 1 3 0 8 0 rtentry 112 702 0 602 4 0 4 4 0 8 0 unpcb 144 9622 0 9607 133 126 7 10 0 8 6 syncache 296 126 0 126 31 31 0 1 0 8 0 tcpqe 32 455 93 455 21 21 0 2 0 8 0 tcpcb 808 7600 0 7588 268 266 2 14 0 8 0 arp 120 115 0 99 1 0 1 1 0 8 0 inpcb 368 13038 0 13023 306 303 3 19 0 8 0 nd6 136 173 0 151 2 0 2 2 0 8 0 pkpcb 40 111 0 111 9 9 0 1 0 8 0 kcovpl 48 54 0 47 1 0 1 1 0 8 0 ppxss 1256 25 0 25 8 8 0 1 0 8 0 pffrag 232 221 0 219 10 9 1 1 0 482 0 pffrnode 88 221 0 219 10 9 1 1 0 8 0 pffrent 40 724 0 722 9 8 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 24 519 0 509 1 0 1 1 0 8 0 pfstkey 128 519 0 509 4 2 2 2 0 8 0 pfstate 376 519 0 509 15 13 2 4 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 2507 0 2087 34 4 30 31 0 8 1 art_table 32 2508 0 2087 4 0 4 4 0 8 0 art_node 16 626 0 535 1 0 1 1 0 8 0 sysvmsgpl 40 44 0 4 2 1 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 640 0 630 1 0 1 1 0 8 0 shmpl 112 132 0 4 5 1 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 29913 0 28364 98 0 98 98 0 8 0 ffsino 272 29913 0 28364 104 0 104 104 0 8 0 nchpl 144 53360 0 52828 63 40 23 63 0 8 0 uvmvnodes 80 8882 0 0 182 0 182 182 0 8 0 vnodes 216 8882 0 0 494 0 494 494 0 8 0 namei 1024 197794 0 197794 7 6 1 2 0 8 1 percpumem 16 166 0 123 1 0 1 1 0 8 0 kstatmem 264 270 0 246 2 0 2 2 0 8 0 scxspl 216 154231 0 154231 46 44 2 8 1 8 2 plimitpl 152 1836 0 1821 1 0 1 1 0 8 0 sigapl 424 18113 0 18045 10 2 8 8 0 8 0 futexpl 64 147100 0 147099 4 3 1 1 0 8 0 knotepl 120 1466 0 0 14 1 13 13 0 8 0 kqueuepl 216 2581 0 2573 33 32 1 5 0 8 0 pipepl 320 3474 0 3447 118 107 11 11 0 8 8 fdescpl 496 18026 0 18001 7 3 4 5 0 8 0 filepl 152 129149 0 128928 284 266 18 22 0 8 8 lockfpl 104 3452 0 3450 4 3 1 2 0 8 0 lockfspl 48 949 0 947 1 0 1 1 0 8 0 sessionpl 144 74 0 58 1 0 1 1 0 8 0 pgrppl 48 442 0 426 1 0 1 1 0 8 0 ucredpl 104 42056 0 42038 1 0 1 1 0 8 0 zombiepl 144 18049 0 18045 1 0 1 1 0 8 0 processpl 1072 18113 0 18045 5 0 5 5 0 8 0 procpl 696 49663 0 49575 62 52 10 10 0 8 1 sosppl 168 200 0 198 21 20 1 1 0 8 0 sockpl 488 23358 0 23325 668 654 14 34 0 8 8 mcl64k 65536 66 0 0 4 1 3 3 0 8 0 mcl16k 16384 57 0 0 5 2 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 16 0 0 2 0 2 2 0 8 0 mcl8k 8192 81 0 0 6 3 3 3 0 8 0 mcl4k 4096 74 0 0 4 1 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 476 0 0 34 23 11 34 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 2060 0 0 60 0 60 60 0 8 0 bufpl 288 33777 0 24891 635 0 635 635 0 8 0 anonpl 24 1981176 0 1967474 231 121 110 138 0 186 0 amapchunkpl 152 557294 0 556488 156 112 44 48 0 158 2 amappl16 200 43805 0 43396 299 273 26 48 0 8 0 amappl15 192 42 0 42 3 3 0 1 0 8 0 amappl14 184 313 0 294 9 8 1 2 0 8 0 amappl13 176 33 0 32 1 0 1 1 0 8 0 amappl12 168 19374 0 19339 3 1 2 2 0 8 0 amappl11 160 60 0 46 1 0 1 1 0 8 0 amappl10 152 84 0 71 1 0 1 1 0 8 0 amappl9 144 1168 0 1168 41 40 1 1 0 8 1 amappl8 136 1132 0 928 8 0 8 8 0 8 0 amappl7 128 235 0 221 2 0 2 2 0 8 0 amappl6 120 849 0 821 2 1 1 2 0 8 0 amappl5 112 1322 0 1309 1 0 1 1 0 8 0 amappl4 104 1210 0 1159 3 1 2 3 0 8 0 amappl3 96 108810 0 108737 4 1 3 3 0 8 0 amappl2 88 18908 0 18823 3 1 2 3 0 8 0 amappl1 80 74005 0 73460 23 10 13 23 0 8 0 amappl 88 174602 0 174374 8 1 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 72 134 0 4 3 0 3 3 0 8 0 uaddrrnd 24 18026 0 18000 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18026 0 18000 1 0 1 1 0 8 0 vmmpekpl 168 141832 0 141768 4 0 4 4 0 8 0 vmmpepl 168 1094523 0 1092110 399 264 135 154 0 357 5 vmsppl 464 18025 0 17999 5 1 4 5 0 8 0 rwobjpl 56 274898 0 264260 170 19 151 152 0 8 0 pdppl 4096 36060 0 35998 1100 1030 70 80 0 8 8 pvpl 32 5621149 0 5601270 614 409 205 369 0 265 2 pmappl 248 18025 0 17999 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2680 0 1649 30 0 30 30 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279fdb9) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281e294,ffffffff82807a1a,136,ffffffff827e6667) at __assert+0x29 sys/kern/subr_prf.c:157 buf_free_pages(fffffd807670c938) at buf_free_pages+0x1d2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd807670c938) at buf_dealloc_mem+0xe3 sys/kern/vfs_biomem.c:179 buf_put(fffffd807670c938) at buf_put+0x165 sys/kern/vfs_bio.c:130 brelse(fffffd807670c938) at brelse+0x5c3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd80731ba948,2,fffffd807f7d6618,ffff800021217068,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd8059eb6cd0,0,4,fffffd807f7d6618) at ffs_truncate+0xf22 sys/ufs/ffs/ffs_inode.c:326 ufs_rmdir(ffff800021260f18) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd806f185cd8,fffffd80731ba948,ffff800021260ff8) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff800021217068,b,c0004d0b60,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff800021261170) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800021261170) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2560c6190, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800020d58ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 uvm_unmap_detach(ffff8000211b9c60,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382 uvm_map_teardown(fffffd8069912588) at uvm_map_teardown+0x2c5 sys/uvm/uvm_map.c:2585 uvmspace_free(fffffd8069912588) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ad5c8) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: 7 ddb{1}> trace x86_ipi_db(ffff800020d58ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 uvm_unmap_detach(ffff8000211b9c60,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382 uvm_map_teardown(fffffd8069912588) at uvm_map_teardown+0x2c5 sys/uvm/uvm_map.c:2585 uvmspace_free(fffffd8069912588) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ad5c8) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: -8