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 *438096 90545 0 0x2 0x1 1K syz-executor 138926 35466 0 0x14000 0x200 0 reaper db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830f11cf) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff830a8ebd,ffffffff8304f694,136,ffffffff8302eb9f) at __assert+0x29 buf_free_pages(fffffd806bab3158) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd806bab3158) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806bab3158) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd806bab3158) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd806a6c9de0,2,ffffffffffffffff,ffff80002a03e2a0,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2027 ffs_truncate(fffffd806be32aa8,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a09ca08) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a6c9de0,ffff80002a03e2a0) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd806a6c9de0) at vrele+0x129 sys/kern/vfs_subr.c:829 ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:701 ktrsysret(ffff80002a03e2a0,b,4,ffff80002a09cc80) at ktrsysret+0x18b sys/kern/kern_ktrace.c:206 end trace frame: 0xffff80002a09cd20, 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(ffffffff830f11cf) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff830a8ebd,ffffffff8304f694,136,ffffffff8302eb9f) at __assert+0x29 buf_free_pages(fffffd806bab3158) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd806bab3158) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806bab3158) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd806bab3158) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd806a6c9de0,2,ffffffffffffffff,ffff80002a03e2a0,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2027 ffs_truncate(fffffd806be32aa8,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a09ca08) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a6c9de0,ffff80002a03e2a0) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd806a6c9de0) at vrele+0x129 sys/kern/vfs_subr.c:829 ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:701 ktrsysret(ffff80002a03e2a0,b,4,ffff80002a09cc80) at ktrsysret+0x18b sys/kern/kern_ktrace.c:206 syscall(ffff80002a09cd30) at syscall+0xa2f mi_syscall_return sys/sys/syscall_mi.h:208 [inline] syscall(ffff80002a09cd30) at syscall+0xa2f sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x730452bae840, count: -16 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a09c500 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff80002a03e2a0 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x81aaf641120f976e r11 0x4ff536427f50c92b r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff82b713d5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a09c4f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=438096 pid=90545 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=0xffff80002a03ea38,0xffff80002a03ef58 process=0xffff8000ffff8010 user=0xffff80002a097000, vmspace=0xfffffd807eb76a80 estcpu=0, cpticks=1, pctcpu=0.0, user=2, sys=40, intr=2 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80826 379777 0 0 3 0x14200 bored sosplice 97366 493564 32224 0 3 0x82 wait syz-executor 42282 312825 32224 0 3 0x82 wait syz-executor 8064 376201 32224 0 3 0x82 wait syz-executor 90441 288247 32224 0 3 0x82 wait syz-executor 964 419344 32224 0 3 0x82 wait syz-executor 57990 96143 32224 0 3 0x82 wait syz-executor *90545 438096 32224 0 7 0x3 syz-executor 32224 306368 52079 0 3 0x82 wait syz-executor 52079 54368 63129 0 3 0x10008a sigsusp ksh 63129 290210 5246 0 3 0x98 kqread sshd-session 5246 307126 73193 0 3 0x92 kqread sshd-session 58675 146498 1 0 3 0x100083 ttyin getty 73193 3325 1 0 3 0x88 kqread sshd 59523 68175 48513 74 3 0x1100092 bpf pflogd 48513 422320 1 0 3 0x80 sbwait pflogd 83826 479714 10804 73 3 0x1100010 biowait syslogd 10804 483492 1 0 3 0x100082 sbwait syslogd 21093 353774 1 0 3 0x100080 kqread resolvd 37511 398104 9124 77 3 0x100092 kqread dhcpleased 94121 389450 9124 77 3 0x100092 kqread dhcpleased 9124 139148 1 0 3 0x80 kqread dhcpleased 75796 326149 0 0 3 0x14200 bored smr 79501 62607 0 0 3 0x14200 pgzero zerothread 84087 42474 0 0 3 0x14200 aiodoned aiodoned 41003 337760 0 0 3 0x14200 syncer update 86988 67428 0 0 3 0x14200 cleaner cleaner 35466 138926 0 0 7 0x14200 reaper 70124 22070 0 0 3 0x14200 pgdaemon pagedaemon 29673 71202 0 0 3 0x14200 bored viomb 57489 383740 0 0 3 0x40014200 acpi0 acpi0 31331 64258 0 0 3 0x40014200 idle1 41854 425121 0 0 3 0x14200 bored softnet3 62828 442186 0 0 3 0x14200 bored softnet2 995 71577 0 0 3 0x14200 bored softnet1 88100 20546 0 0 3 0x14200 bored softnet0 75695 288858 0 0 3 0x14200 bored systqmp 26164 509169 0 0 3 0x14200 bored systq 87106 485074 0 0 3 0x14200 tmoslp softclockmp 52911 226622 0 0 3 0x40014200 tmoslp softclock 5869 146918 0 0 3 0x40014200 idle0 1 305446 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 90545 (syz-executor) thread 0xffff80002a03e2a0 (438096) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8363b4e8) #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+0x2f2 sys/kern/kern_synch.c:425 #4 biowait+0xc1 sys/kern/vfs_bio.c:1246 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:758 #6 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 #7 ffs_truncate+0xcb6 #8 ufs_inactive+0x203 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:829 #11 ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] #11 ktrwriteraw+0x382 sys/kern/kern_ktrace.c:701 #12 ktrsysret+0x18b sys/kern/kern_ktrace.c:206 #13 syscall+0xa2f mi_syscall_return sys/sys/syscall_mi.h:208 [inline] #13 syscall+0xa2f sys/arch/amd64/amd64/trap.c:598 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806be32b40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vrele+0xd0 sys/kern/vfs_subr.c:820 #6 ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] #6 ktrwriteraw+0x382 sys/kern/kern_ktrace.c:701 #7 ktrsysret+0x18b sys/kern/kern_ktrace.c:206 #8 syscall+0xa2f mi_syscall_return sys/sys/syscall_mi.h:208 [inline] #8 syscall+0xa2f sys/arch/amd64/amd64/trap.c:598 #9 Xsyscall+0x128 Process 83826 (syslogd) thread 0xffff8000ffffd450 (479714) exclusive rrwlock inode r = 0 (0xfffffd806e49c5f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 35466 (reaper) thread 0xffff800029fd91c0 (138926) kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10181 11115K 11414K 166960K 11915 0 pcb 17 14K 16K 166960K 188 0 rtable 128 3K 6K 166960K 397 0 pf 27 16K 18K 166960K 73 0 ifaddr 27 4K 7K 166960K 62 0 ifgroup 39 1K 2K 166960K 84 0 sysctl 3 1K 1K 166960K 3 0 counters 56 35K 36K 166960K 84 0 ioctlops 0 0K 4K 166960K 1610 0 iov 0 0K 12K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1519 96K 96K 166960K 1890 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 56 0 dirhash 12 2K 3K 166960K 27 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 9 29K 93K 166960K 564 0 sigio 0 0K 0K 166960K 13 0 proc 72 91K 128K 166960K 586 0 subproc 91 5K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 44 0 in_multi 55 4K 7K 166960K 131 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 4 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 506 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 245 65K 77K 166960K 7049 0 UVM aobj 19 4K 4K 166960K 19 0 pinsyscall 34 68K 105K 166960K 1668 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 22 0 NDP 8 0K 2K 166960K 39 0 temp 43 6820K 6916K 166960K 33163 0 kqueue 13 20K 28K 166960K 97 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 54 0 51 1 0 1 1 0 8 0 rtentry 112 129 0 72 4 0 4 4 0 8 0 unpcb 144 373 0 356 4 3 1 3 0 8 0 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 808 227 0 222 14 13 1 8 0 8 0 arp 120 20 0 10 1 0 1 1 0 8 0 inpcb 336 682 0 674 13 12 1 7 0 8 0 nd6 136 25 0 13 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 2 0 1 0 8 0 kcovpl 48 8 0 1 1 0 1 1 0 8 0 ppxss 1168 7 0 7 3 3 0 1 0 8 0 pffrent 40 1 0 1 1 1 0 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 49 0 34 1 0 1 1 0 8 0 pfstkey 128 49 0 34 2 0 2 2 0 8 0 pfstate 376 49 0 34 5 0 5 5 0 8 1 pfrule 1344 23 0 17 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 584 0 342 29 6 23 29 0 8 3 art_table 32 585 0 342 4 0 4 4 0 8 0 art_node 16 128 0 79 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semapl 112 52 0 42 1 0 1 1 0 8 0 shmpl 112 16 0 0 1 0 1 1 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 2369 0 873 95 0 95 95 0 8 0 ffsino 272 2369 0 873 101 0 101 101 0 8 0 nchpl 144 3169 0 1479 63 0 63 63 0 8 0 uvmvnodes 80 2854 0 0 59 0 59 59 0 8 0 vnodes 216 2854 0 0 159 0 159 159 0 8 0 namei 1024 10453 0 10453 4 4 0 2 0 8 0 percpumem 16 56 0 14 1 0 1 1 0 8 0 kstatmem 264 44 0 28 2 0 2 2 0 8 0 scsiplug 72 7 0 7 2 2 0 1 0 8 0 scxspl 216 12932 0 12931 17 16 1 8 1 8 0 plimitpl 152 91 0 73 1 0 1 1 0 8 0 sigapl 424 873 0 823 7 1 6 7 0 8 0 futexpl 64 6916 0 6916 1 1 0 1 0 8 0 knotepl 120 557 0 0 17 0 17 17 0 8 0 kqueuepl 216 153 0 144 1 0 1 1 0 8 0 pipepl 320 156 0 129 3 0 3 3 0 8 0 fdescpl 496 854 0 831 6 2 4 5 0 8 1 filepl 152 4785 0 4563 21 10 11 17 0 8 1 lockfpl 104 225 0 223 1 0 1 1 0 8 0 lockfspl 48 69 0 67 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 34 0 17 1 0 1 1 0 8 0 ucredpl 104 638 0 623 1 0 1 1 0 8 0 zombiepl 144 938 0 930 1 0 1 1 0 8 0 processpl 1160 873 0 823 5 1 4 5 0 8 0 procpl 648 1639 0 1571 7 1 6 7 0 8 0 srpgc 96 4 0 4 1 1 0 1 0 8 0 sosppl 168 3 0 3 2 2 0 1 0 8 0 sockpl 664 1188 0 1160 15 12 3 9 0 8 0 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 156 0 0 20 0 20 20 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 184 0 0 11 0 11 11 0 8 0 bufpl 280 6947 0 773 442 0 442 442 0 8 0 anonpl 24 207553 0 199527 120 41 79 79 0 185 19 amapchunkpl 152 23088 0 22512 47 10 37 37 0 158 7 amappl16 200 5533 0 5278 41 27 14 15 0 8 0 amappl15 192 34 0 34 1 1 0 1 0 8 0 amappl14 184 121 0 108 1 0 1 1 0 8 0 amappl13 176 16 0 15 1 0 1 1 0 8 0 amappl12 168 1511 0 1482 3 1 2 2 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 138 0 138 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 109 0 97 1 0 1 1 0 8 0 amappl6 120 169 0 167 1 0 1 1 0 8 0 amappl5 112 135 0 124 1 0 1 1 0 8 0 amappl4 104 312 0 294 1 0 1 1 0 8 0 amappl3 96 4243 0 4139 4 0 4 4 0 8 0 amappl2 88 1133 0 1050 4 1 3 3 0 8 0 amappl1 80 9139 0 8576 16 2 14 14 0 8 0 amappl 88 6649 0 6466 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 128 254 0 254 2 2 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 18 0 0 1 0 1 1 0 8 0 uaddrrnd 24 854 0 825 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 854 0 825 1 0 1 1 0 8 0 vmmpekpl 168 8430 0 8381 4 1 3 3 0 8 0 vmmpepl 168 60695 0 58648 114 18 96 96 0 357 0 vmsppl 448 853 0 825 6 2 4 5 0 8 0 rwobjpl 56 23871 0 19823 60 2 58 58 0 8 0 pdppl 4096 1715 0 1650 111 40 71 85 0 8 6 pvpl 32 33420 0 0 270 0 270 270 0 265 0 pmappl 248 853 0 825 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 422 0 84 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834ffff0) 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(ffffffff8363b2e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8363b2e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 reaper(ffff800029fd91c0) at reaper+0x24b sys/kern/kern_exit.c:478 end trace frame: 0x0, count: 10 ddb{0}> trace x86_ipi_db(ffffffff834ffff0) 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(ffffffff8363b2e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8363b2e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 reaper(ffff800029fd91c0) 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(ffffffff830f11cf) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff830a8ebd,ffffffff8304f694,136,ffffffff8302eb9f) at __assert+0x29 buf_free_pages(fffffd806bab3158) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd806bab3158) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806bab3158) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd806bab3158) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd806a6c9de0,2,ffffffffffffffff,ffff80002a03e2a0,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2027 ffs_truncate(fffffd806be32aa8,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a09ca08) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a6c9de0,ffff80002a03e2a0) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd806a6c9de0) at vrele+0x129 sys/kern/vfs_subr.c:829 ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:701 ktrsysret(ffff80002a03e2a0,b,4,ffff80002a09cc80) at ktrsysret+0x18b sys/kern/kern_ktrace.c:206 end trace frame: 0xffff80002a09cd20, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830f11cf) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff830a8ebd,ffffffff8304f694,136,ffffffff8302eb9f) at __assert+0x29 buf_free_pages(fffffd806bab3158) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299 buf_dealloc_mem(fffffd806bab3158) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179 buf_put(fffffd806bab3158) at buf_put+0x1dc sys/kern/vfs_bio.c:127 brelse(fffffd806bab3158) at brelse+0x395 sys/kern/vfs_bio.c:936 vinvalbuf(fffffd806a6c9de0,2,ffffffffffffffff,ffff80002a03e2a0,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2027 ffs_truncate(fffffd806be32aa8,0,0,ffffffffffffffff) at ffs_truncate+0xf6c ufs_inactive(ffff80002a09ca08) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806a6c9de0,ffff80002a03e2a0) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vrele(fffffd806a6c9de0) at vrele+0x129 sys/kern/vfs_subr.c:829 ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 ktrcleartrace sys/kern/kern_ktrace.c:86 [inline] ktrwriteraw(ffff80002a03e2a0,fffffd806a6c9de0,fffffd807f7d3680,ffff80002a09cbb0,ffff80002a09cb90) at ktrwriteraw+0x382 sys/kern/kern_ktrace.c:701 ktrsysret(ffff80002a03e2a0,b,4,ffff80002a09cc80) at ktrsysret+0x18b sys/kern/kern_ktrace.c:206 syscall(ffff80002a09cd30) at syscall+0xa2f mi_syscall_return sys/sys/syscall_mi.h:208 [inline] syscall(ffff80002a09cd30) at syscall+0xa2f sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x730452bae840, count: -16