panic: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *362354 68934 0 0x2 0x1 0 syz-executor.4 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82724ebf) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff8279feb1,ffffffff827bed80,136,ffffffff8276b532) at __assert+0x25 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80578c5040) at buf_free_pages+0x1c2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80578c5040) at buf_dealloc_mem+0xdf sys/kern/vfs_biomem.c:179 buf_put(fffffd80578c5040) at buf_put+0x161 sys/kern/vfs_bio.c:129 brelse(fffffd80578c5040) at brelse+0x5b3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd8062bb6c08,2,ffffffffffffffff,ffff80002315cd30,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806d63f1f0,0,0,ffffffffffffffff) at ffs_truncate+0xf06 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff80002e857618) at ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8062bb6c08,ffff80002315cd30) at VOP_INACTIVE+0xb7 sys/kern/vfs_vops.c:489 vrele(fffffd8062bb6c08) at vrele+0xc9 sys/kern/vfs_subr.c:827 ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f sys/kern/kern_ktrace.c:679 ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b ktrwrite2 sys/kern/kern_ktrace.c:624 [inline] ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b sys/kern/kern_ktrace.c:259 end trace frame: 0xffff80002e857910, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82724ebf) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff8279feb1,ffffffff827bed80,136,ffffffff8276b532) at __assert+0x25 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80578c5040) at buf_free_pages+0x1c2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80578c5040) at buf_dealloc_mem+0xdf sys/kern/vfs_biomem.c:179 buf_put(fffffd80578c5040) at buf_put+0x161 sys/kern/vfs_bio.c:129 brelse(fffffd80578c5040) at brelse+0x5b3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd8062bb6c08,2,ffffffffffffffff,ffff80002315cd30,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806d63f1f0,0,0,ffffffffffffffff) at ffs_truncate+0xf06 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff80002e857618) at ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8062bb6c08,ffff80002315cd30) at VOP_INACTIVE+0xb7 sys/kern/vfs_vops.c:489 vrele(fffffd8062bb6c08) at vrele+0xc9 sys/kern/vfs_subr.c:827 ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f sys/kern/kern_ktrace.c:679 ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b ktrwrite2 sys/kern/kern_ktrace.c:624 [inline] ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b sys/kern/kern_ktrace.c:259 dofilereadv(ffff80002315cd30,f9,ffff80002e857928,0,ffff80002e857a10) at dofilereadv+0x2e0 sys/kern/sys_generic.c:263 sys_read(ffff80002315cd30,ffff80002e8579c0,ffff80002e857a10) at sys_read+0x83 sys/kern/sys_generic.c:167 syscall(ffff80002e857a90) at syscall+0x446 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7c0, count: -18 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002e857120 rbx 0 rdx 0 rcx 0 rax 0xffff80002315cd30 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf026cae2002ecbcd r11 0xc0fe2139fd637716 r12 0 r13 0xfffffd8006116c00 r14 0 r15 0x1 rip 0xffffffff82593d38 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e857110 ss 0 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.4) pid=362354 stat=onproc flags process=2 proc=1 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80002e8f6fc0,0xffff80002e8f77b0 process=0xffff80002171cbe0 user=0xffff80002e852000, vmspace=0xfffffd806d3fb670 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 59174 258688 26007 0 2 0 syz-executor.5 16073 413669 6646 0 2 0 syz-executor.7 44151 229026 31470 0 2 0 syz-executor.3 22309 245731 80847 0 2 0 syz-executor.0 22309 236158 80847 0 3 0x4000080 fsleep syz-executor.0 *68934 362354 81278 0 7 0x3 syz-executor.4 26007 376286 81278 0 2 0x2 syz-executor.5 80847 158500 81278 0 3 0x82 nanoslp syz-executor.0 31470 339123 81278 0 3 0x82 nanoslp syz-executor.3 80733 34900 81278 0 3 0x82 piperd syz-executor.2 37128 95869 81278 0 3 0x82 piperd syz-executor.6 61342 273279 1 0 3 0x100083 ttyin getty 6646 102529 81278 0 3 0x82 nanoslp syz-executor.7 65434 332443 0 0 3 0x14200 acct acct 10275 97033 0 0 3 0x14200 bored sosplice 81278 207526 34391 0 3 0x82 thrsleep syz-fuzzer 81278 318835 34391 0 3 0x4000082 nanoslp syz-fuzzer 81278 217342 34391 0 3 0x4000082 wait syz-fuzzer 81278 205123 34391 0 3 0x4000082 wait syz-fuzzer 81278 498961 34391 0 3 0x4000082 thrsleep syz-fuzzer 81278 61329 34391 0 3 0x4000082 wait syz-fuzzer 81278 305801 34391 0 2 0x4000002 syz-fuzzer 81278 441985 34391 0 3 0x4000082 wait syz-fuzzer 81278 231173 34391 0 3 0x4000082 thrsleep syz-fuzzer 81278 171546 34391 0 3 0x4000002 biowait syz-fuzzer 81278 68566 34391 0 3 0x4000082 wait syz-fuzzer 81278 226528 34391 0 3 0x4000082 wait syz-fuzzer 81278 499649 34391 0 3 0x4000082 thrsleep syz-fuzzer 81278 268440 34391 0 3 0x4000082 wait syz-fuzzer 34391 398213 80379 0 3 0x10008a sigsusp ksh 80379 507715 84340 0 3 0x9a kqread sshd 84340 64351 1 0 3 0x88 kqread sshd 29667 497029 59718 73 3 0x1100010 biowait syslogd 59718 65861 1 0 3 0x100082 netio syslogd 48311 189383 1 0 3 0x100080 kqread resolvd 7724 410362 93347 77 3 0x100092 kqread dhcpleased 95026 389820 93347 77 3 0x100092 kqread dhcpleased 93347 90706 1 0 3 0x80 kqread dhcpleased 16154 516423 0 0 3 0x14200 bored smr 5189 482753 0 0 2 0x14200 zerothread 52723 203000 0 0 3 0x14200 aiodoned aiodoned 31125 68708 0 0 3 0x14200 syncer update 78998 1093 0 0 3 0x14200 cleaner cleaner 15260 281639 0 0 3 0x14200 reaper reaper 69126 322882 0 0 3 0x14200 pgdaemon pagedaemon 87879 88416 0 0 3 0x14200 bored viomb 70506 257199 0 0 3 0x40014200 acpi0 acpi0 57488 179698 0 0 3 0x14200 bored softnet 38522 200871 0 0 3 0x14200 bored softnet 67377 218403 0 0 3 0x14200 bored softnet 43363 450942 0 0 3 0x14200 bored softnet 82787 385260 0 0 3 0x14200 bored systqmp 28293 139154 0 0 3 0x14200 bored systq 50030 271499 0 0 3 0x40014200 bored softclock 46697 378814 0 0 3 0x40014200 idle0 1 93823 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10215 6423K 7456K 78643K 28902 0 pcb 13 18K 22K 78643K 4632 0 rtable 148 14K 15K 78643K 5083 0 ifaddr 87 22K 25K 78643K 804 0 sysctl 3 1K 1K 78643K 3 0 counters 26 17K 17K 78643K 388 0 ioctlops 0 0K 4K 78643K 4148 0 iov 0 0K 32K 78643K 1657 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1538 96K 97K 78643K 18322 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 111 0 VM map 2 0K 0K 78643K 2 0 sem 21 2K 3K 78643K 76 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 73K 78643K 10350 0 sigio 0 0K 0K 78643K 282 0 proc 61 59K 75K 78643K 1701 0 subproc 91 5K 7K 78643K 562 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 285 0 in_multi 53 3K 6K 78643K 679 0 ether_multi 1 0K 0K 78643K 35 0 mrt 1 0K 0K 78643K 542 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 253 1129K 1129K 78643K 253 0 exec 0 0K 1K 78643K 2240 0 pfkey data 0 0K 0K 78643K 3 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 318 78K 99K 78643K 68559 0 UVM aobj 131 8K 8K 78643K 142 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 299 0 NDP 11 0K 1K 78643K 252 0 temp 125 5766K 6790K 78643K 132494 0 kqueue 12 18K 28K 78643K 1568 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 3992 0 3989 48 47 1 4 0 8 0 rtentry 112 1229 0 1170 4 1 3 4 0 8 0 unpcb 144 14159 0 14146 126 125 1 10 0 8 0 syncache 296 26 0 26 7 7 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 93 0 93 5 5 0 1 0 8 0 tcpcb 776 3523 0 3519 135 134 1 14 0 8 0 arp 88 90 0 79 1 0 1 1 0 8 0 ipq 40 4 0 4 3 3 0 1 0 8 0 ipqe 40 18 0 18 3 3 0 1 0 8 0 inpcb 336 16872 0 16865 244 243 1 18 0 8 0 nd6 48 142 0 130 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 kcovpl 48 43 0 36 1 0 1 1 0 8 0 mppekey 1024 9 0 9 3 3 0 1 0 8 0 ppxss 1160 258 0 258 26 26 0 1 0 8 0 pppxif 1352 136 0 136 20 20 0 1 0 8 0 pfstscr 40 866 0 842 1 0 1 1 0 8 0 pfosfp 40 9 0 8 1 0 1 1 0 8 0 pfosfpen 112 9 0 7 1 0 1 1 0 8 0 pfanchor 1280 908 1 439 47 6 41 43 0 8 0 pfstitem 24 1571 0 1529 1 0 1 1 0 8 0 pfstkey 128 1792 0 964 27 0 27 27 0 8 0 pfstate 352 900 0 879 3 1 2 3 0 8 0 rttmr 136 96 0 96 10 10 0 1 0 8 0 art_heap8 4096 5 0 3 4 2 2 3 0 8 0 art_heap4 256 3015 0 2753 50 29 21 31 0 8 0 art_table 32 3020 0 2756 4 0 4 4 0 8 0 art_node 16 870 0 820 1 0 1 1 0 8 0 sysvmsgpl 40 68 0 44 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 66 0 47 1 0 1 1 0 8 0 shmpl 112 139 0 11 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 23066 0 21581 94 0 94 94 0 8 0 ffsino 240 23066 0 21581 88 0 88 88 0 8 0 nchpl 144 36717 0 35099 63 1 62 63 0 8 0 rtmask 32 3 0 3 1 1 0 1 0 8 0 uvmvnodes 80 6040 0 0 124 0 124 124 0 8 0 vnodes 216 6040 0 0 336 0 336 336 0 8 0 namei 1024 153844 0 153844 11 10 1 2 0 8 1 vmpool 664 19 0 19 6 6 0 1 0 8 0 kstatmem 264 324 0 302 4 2 2 3 0 8 0 scsiplug 72 7 0 7 2 2 0 1 0 8 0 scxspl 216 93720 0 93718 26 25 1 8 0 8 0 plimitpl 152 1234 0 1220 1 0 1 1 0 8 0 sigapl 424 10674 0 10632 8 1 7 8 0 8 0 futexpl 64 122185 0 122184 9 8 1 1 0 8 0 knotepl 120 173135 0 173057 67 61 6 10 0 8 0 kqueuepl 184 3619 0 3611 41 40 1 7 0 8 0 pipepl 288 2615 0 2588 53 50 3 7 0 8 0 fdescpl 432 10556 0 10532 4 0 4 4 0 8 0 filepl 120 128475 0 128257 161 151 10 19 0 8 0 lockfpl 104 3612 0 3610 12 11 1 2 0 8 0 lockfspl 48 1110 0 1108 1 0 1 1 0 8 0 sessionpl 144 58 0 43 1 0 1 1 0 8 0 pgrppl 48 114 0 99 1 0 1 1 0 8 0 ucredpl 104 44461 0 44451 1 0 1 1 0 8 0 zombiepl 144 10632 0 10632 1 0 1 1 0 8 1 processpl 1008 10674 0 10632 10 2 8 9 0 8 0 procpl 672 27697 0 27641 30 23 7 9 0 8 0 sosppl 168 74 0 74 20 20 0 1 0 8 0 sockpl 456 35227 0 35204 788 782 6 37 0 8 3 mcl64k 65536 347 0 347 35 35 0 1 0 8 0 mcl16k 16384 190 0 190 30 30 0 1 0 8 0 mcl12k 12288 306 0 306 35 35 0 1 0 8 0 mcl9k 9216 240 0 240 35 35 0 1 0 8 0 mcl8k 8192 919 0 919 28 28 0 1 0 8 0 mcl4k 4096 1405 0 1405 19 18 1 1 0 8 1 mcl2k2 2112 82 0 82 31 31 0 1 0 8 0 mcl2k 2048 97949 0 97883 50 41 9 31 0 8 0 mtagpl 96 2503 0 2454 21 15 6 16 0 8 0 mbufpl 256 283153 0 282899 706 670 36 142 0 8 2 bufpl 288 20417 0 13980 460 0 460 460 0 8 0 anonpl 24 2011179 0 1997265 200 60 140 147 0 188 19 amapchunkpl 152 191770 0 191165 89 55 34 38 0 158 3 amappl16 200 16609 0 16012 110 77 33 45 0 8 1 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 268 0 257 2 0 2 2 0 8 0 amappl13 176 7 0 7 2 2 0 1 0 8 0 amappl12 168 793 0 791 1 0 1 1 0 8 0 amappl11 160 46 0 35 1 0 1 1 0 8 0 amappl10 152 62 0 55 1 0 1 1 0 8 0 amappl9 144 992 0 990 1 0 1 1 0 8 0 amappl8 136 517 0 422 5 1 4 4 0 8 0 amappl7 128 213 0 189 2 0 2 2 0 8 0 amappl6 120 363 0 349 1 0 1 1 0 8 0 amappl5 112 386 0 379 1 0 1 1 0 8 0 amappl4 104 957 0 934 2 1 1 2 0 8 0 amappl3 96 30249 0 30210 2 0 2 2 0 8 0 amappl2 88 11581 0 11512 3 1 2 3 0 8 0 amappl1 80 238289 0 237668 28 12 16 22 0 8 0 amappl 88 67534 0 67378 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 72 141 0 11 3 0 3 3 0 8 0 uaddrrnd 24 10575 0 10551 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10575 0 10551 1 0 1 1 0 8 0 vmmpekpl 168 81210 0 81164 3 0 3 3 0 8 0 vmmpepl 168 962692 0 960223 393 258 135 146 0 357 5 vmsppl 272 10574 0 10551 4 2 2 3 0 8 0 rwobjpl 24 250711 0 242916 54 5 49 49 0 8 0 pdppl 4096 21156 0 21102 692 638 54 68 0 8 0 pvpl 32 3940828 0 3921829 556 295 261 269 0 265 65 pmappl 216 10574 0 10551 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2577 0 1801 26 0 26 26 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82724ebf) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff8279feb1,ffffffff827bed80,136,ffffffff8276b532) at __assert+0x25 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80578c5040) at buf_free_pages+0x1c2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80578c5040) at buf_dealloc_mem+0xdf sys/kern/vfs_biomem.c:179 buf_put(fffffd80578c5040) at buf_put+0x161 sys/kern/vfs_bio.c:129 brelse(fffffd80578c5040) at brelse+0x5b3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd8062bb6c08,2,ffffffffffffffff,ffff80002315cd30,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806d63f1f0,0,0,ffffffffffffffff) at ffs_truncate+0xf06 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff80002e857618) at ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8062bb6c08,ffff80002315cd30) at VOP_INACTIVE+0xb7 sys/kern/vfs_vops.c:489 vrele(fffffd8062bb6c08) at vrele+0xc9 sys/kern/vfs_subr.c:827 ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f sys/kern/kern_ktrace.c:679 ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b ktrwrite2 sys/kern/kern_ktrace.c:624 [inline] ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b sys/kern/kern_ktrace.c:259 dofilereadv(ffff80002315cd30,f9,ffff80002e857928,0,ffff80002e857a10) at dofilereadv+0x2e0 sys/kern/sys_generic.c:263 sys_read(ffff80002315cd30,ffff80002e8579c0,ffff80002e857a10) at sys_read+0x83 sys/kern/sys_generic.c:167 syscall(ffff80002e857a90) at syscall+0x446 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7c0, count: -18 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82724ebf) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff8279feb1,ffffffff827bed80,136,ffffffff8276b532) at __assert+0x25 sys/kern/subr_prf.c:157 buf_free_pages(fffffd80578c5040) at buf_free_pages+0x1c2 sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd80578c5040) at buf_dealloc_mem+0xdf sys/kern/vfs_biomem.c:179 buf_put(fffffd80578c5040) at buf_put+0x161 sys/kern/vfs_bio.c:129 brelse(fffffd80578c5040) at brelse+0x5b3 sys/kern/vfs_bio.c:957 vinvalbuf(fffffd8062bb6c08,2,ffffffffffffffff,ffff80002315cd30,0,ffffffffffffffff) at vinvalbuf+0x391 sys/kern/vfs_subr.c:2021 ffs_truncate(fffffd806d63f1f0,0,0,ffffffffffffffff) at ffs_truncate+0xf06 sys/ufs/ffs/ffs_inode.c:326 ufs_inactive(ffff80002e857618) at ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8062bb6c08,ffff80002315cd30) at VOP_INACTIVE+0xb7 sys/kern/vfs_vops.c:489 vrele(fffffd8062bb6c08) at vrele+0xc9 sys/kern/vfs_subr.c:827 ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002315cd30,fffffd8062bb6c08,fffffd807f7d7548,ffff80002e8577b8,ffff80002e857790) at ktrwriteraw+0x27f sys/kern/kern_ktrace.c:679 ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b ktrwrite2 sys/kern/kern_ktrace.c:624 [inline] ktrgenio(ffff80002315cd30,f9,0,ffff8000006c4840,40) at ktrgenio+0x27b sys/kern/kern_ktrace.c:259 dofilereadv(ffff80002315cd30,f9,ffff80002e857928,0,ffff80002e857a10) at dofilereadv+0x2e0 sys/kern/sys_generic.c:263 sys_read(ffff80002315cd30,ffff80002e8579c0,ffff80002e857a10) at sys_read+0x83 sys/kern/sys_generic.c:167 syscall(ffff80002e857a90) at syscall+0x446 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7c0, count: -18