panic: pool_p_free: rttmr free list modified: page 0xfffffd800dd58000; item addr 0xfffffd800dd58ee8; offset 0x10=0x2a322b38 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *262203 71785 0 0 0x4000000 0 syz-executor 322983 5035 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833688e7) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_p_free(ffffffff838bf400,fffffd800dd58f90) at pool_p_free+0x2d1 sys/kern/subr_pool.c:986 pool_reclaim(ffffffff838bf400) at pool_reclaim+0x2c2 sys/kern/subr_pool.c:1152 pool_reclaim_all() at pool_reclaim_all+0x48 sys/kern/subr_pool.c:-1 kern_sysctl(ffff80002a3e6e94,1,200000000180,ffff80002a3e6ec8,200000001180,4,a73350774236613) at kern_sysctl+0x1095 sys/kern/kern_sysctl.c:686 sys_sysctl(ffff80003c42f780,ffff80002a3e7000,ffff80002a3e6f50) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a3e7000) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3e7000) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb6be0a4e7e0, count: 6 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: pool_p_free: rttmr free list modified: page 0xfffffd800dd58000; item addr 0xfffffd800dd58ee8; offset 0x10=0x2a322b38 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833688e7) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_p_free(ffffffff838bf400,fffffd800dd58f90) at pool_p_free+0x2d1 sys/kern/subr_pool.c:986 pool_reclaim(ffffffff838bf400) at pool_reclaim+0x2c2 sys/kern/subr_pool.c:1152 pool_reclaim_all() at pool_reclaim_all+0x48 sys/kern/subr_pool.c:-1 kern_sysctl(ffff80002a3e6e94,1,200000000180,ffff80002a3e6ec8,200000001180,4,a73350774236613) at kern_sysctl+0x1095 sys/kern/kern_sysctl.c:686 sys_sysctl(ffff80003c42f780,ffff80002a3e7000,ffff80002a3e6f50) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a3e7000) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3e7000) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb6be0a4e7e0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a3e6ad0 rbx 0xffffffff837c5ddf cpu_info_full_primary+0x2ddf rdx 0xffff800001472280 rcx 0xffff80003c42f780 rax 0xffffffff837c4ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x939b5f77b8c97d20 r11 0xf191629b28800c45 r12 0xffffffff837c5be0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff82c282e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a3e6ac0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=262203 pid=71785 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c42fa18,0xffffffff8387e128 process=0xffff800035827aa0 user=0xffff80002a3e2000, vmspace=0xfffffd806b9cbb88 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 71785 233309 98197 0 3 0x80 fsleep syz-executor *71785 262203 98197 0 7 0x4000000 syz-executor 5035 68431 73328 0 3 0x80 fsleep syz-executor 5035 322983 73328 0 7 0x4000000 syz-executor 5035 183530 73328 0 3 0x4000080 fsleep syz-executor 4164 421151 56346 0 3 0x80 nanoslp syz-executor 4164 424369 56346 0 3 0x4000080 ttyopn syz-executor 4164 205902 56346 0 3 0x4000080 fsleep syz-executor 72743 392577 0 0 3 0x14200 acct acct 74424 390464 1357 0 3 0x80 fsleep syz-executor 74424 53933 1357 0 3 0x4000080 fsleep syz-executor 74424 433409 1357 0 3 0x4000080 kqpoll syz-executor 77690 327345 83279 0 3 0x80 fsleep syz-executor 77690 340022 83279 0 3 0x4000080 sbwait syz-executor 14918 463203 93245 0 3 0x80 fsleep syz-executor 14918 332809 93245 0 3 0x4000080 fsleep syz-executor 14918 31992 93245 0 3 0x4000080 fsleep syz-executor 14918 85083 93245 0 3 0x4000080 lockf syz-executor 48390 325852 53930 0 3 0x80 fsleep syz-executor 48390 439653 53930 0 3 0x4000080 bpf syz-executor 15017 262978 1 0 3 0x100083 ttyin getty 77992 356480 18551 0 3 0x82 sbwait sshd-session 98197 75374 69380 0 2 0xc82 syz-executor 83279 159875 69380 0 3 0x82 nanoslp syz-executor 93245 61176 69380 0 3 0x82 nanoslp syz-executor 53930 514367 69380 0 3 0x82 nanoslp syz-executor 32226 123079 69380 0 3 0x82 wait syz-executor 24104 134574 0 0 3 0x14200 bored sosplice 1357 36409 69380 0 3 0x82 nanoslp syz-executor 73328 215423 69380 0 2 0xc82 syz-executor 56346 371451 69380 0 3 0x82 nanoslp syz-executor 69380 312800 17501 0 3 0x82 kqread syz-executor 17501 112244 71618 0 3 0x10008a sigsusp ksh 71618 408917 87408 0 3 0x98 kqread sshd-session 87408 201831 18551 0 3 0x92 kqread sshd-session 18551 472524 1 0 3 0x88 kqread sshd 27595 136033 72241 74 3 0x1100092 bpf pflogd 72241 164772 1 0 3 0x80 sbwait pflogd 57935 514675 49313 73 3 0x1100090 kqread syslogd 49313 374648 1 0 3 0x100082 sbwait syslogd 29353 199217 1 0 3 0x100080 kqread resolvd 33401 366376 85379 77 3 0x100092 kqread dhcpleased 84397 489704 85379 77 3 0x100092 kqread dhcpleased 85379 449242 1 0 3 0x80 kqread dhcpleased 31131 365452 0 0 3 0x14200 bored smr 70741 97984 0 0 3 0x14200 pgzero zerothread 66974 297957 0 0 3 0x14200 aiodoned aiodoned 12767 227082 0 0 3 0x14200 syncer update 46514 35979 0 0 3 0x14200 cleaner cleaner 80084 504589 0 0 3 0x14200 reaper reaper 82724 19057 0 0 3 0x14200 pgdaemon pagedaemon 50601 98493 0 0 3 0x14200 bored viomb 45923 504523 0 0 3 0x40014200 acpi0 acpi0 70966 87584 0 0 3 0x40014200 idle1 77193 63013 0 0 3 0x14200 bored softnet7 13306 135683 0 0 3 0x14200 bored softnet6 12397 446506 0 0 3 0x14200 bored softnet5 10372 311573 0 0 3 0x14200 bored softnet4 88809 421776 0 0 3 0x14200 bored softnet3 89872 241888 0 0 3 0x14200 bored softnet2 58006 71834 0 0 3 0x14200 bored softnet1 17807 494581 0 0 3 0x14200 bored softnet0 47159 448136 0 0 3 0x14200 bored systqmp 88627 517900 0 0 3 0x14200 bored systq 13541 393221 0 0 3 0x14200 tmoslp softclockmp 1668 276551 0 0 2 0x40014200 softclock 1584 35307 0 0 3 0x40014200 idle0 1 30178 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 71785 (syz-executor) thread 0xffff80003c42f780 (262203) shared rwlock pools r = 0 (0xffffffff837d9278) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 pool_reclaim_all+0x25 sys/kern/subr_pool.c:1170 #3 kern_sysctl+0x1095 sys/kern/kern_sysctl.c:686 #4 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #6 Xsyscall+0x128 Process 5035 (syz-executor) thread 0xffff80003c42ed20 (322983) exclusive rrwlock inode r = 0 (0xfffffd806b840330) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10252 11050K 12440K 166960K 13963 0 pcb 18 14K 16K 166960K 552 0 rtable 217 13K 14K 166960K 748 0 pf 42 19K 67487K 166960K 239 0 ifaddr 40 7K 7K 166960K 162 0 ifgroup 63 2K 2K 166960K 270 0 sysctl 4 1K 9K 166960K 20 0 counters 72 37K 38K 166960K 316 0 ioctlops 0 0K 8K 166960K 2004 0 iov 1 2K 32K 166960K 155 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1485 93K 94K 166960K 3533 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 31 0 VM map 2 1K 1K 166960K 2 0 sem 28 6K 11K 166960K 48 0 dirhash 12 2K 2K 166960K 66 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 236K 166960K 2402 0 sigio 0 0K 0K 166960K 36 0 proc 72 115K 164K 166960K 1015 0 subproc 72 4K 4K 166960K 145 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 335 0 in_multi 72 5K 7K 166960K 242 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 873 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 265 178K 195K 166960K 23388 0 UVM aobj 57 6K 6K 166960K 61 0 pinsyscall 45 90K 102K 166960K 3712 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 162 0 NDP 14 0K 2K 166960K 120 0 temp 79 8652K 8736K 166960K 115066 0 kqueue 13 20K 35K 166960K 450 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 454 0 451 5 4 1 3 0 8 0 rtentry 176 219 0 143 5 0 5 5 0 8 0 unpcb 144 1765 0 1744 9 8 1 5 0 8 0 syncache 336 11 0 11 7 7 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 613 0 607 11 10 1 7 0 8 0 arp 128 28 0 14 1 0 1 1 0 8 0 inpcb 328 2682 0 2669 33 31 2 12 0 8 0 nd6 144 39 0 26 1 0 1 1 0 8 0 pkpcb 40 16 0 16 6 6 0 1 0 8 0 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 98 0 98 5 5 0 1 0 8 0 pppxif 1504 5 0 5 5 5 0 1 0 8 0 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pffrag 232 18 0 13 1 0 1 1 0 482 0 pffrnode 88 16 0 11 1 0 1 1 0 8 0 pffrent 40 23 0 18 1 0 1 1 0 8 0 pfosfp 40 1430 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1430 0 715 21 0 21 21 0 8 0 pfrktable 1344 2 0 1 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 96 0 82 1 0 1 1 0 8 0 pfstkey 128 106 0 92 3 0 3 3 0 8 0 pfstate 384 100 0 87 7 0 7 7 0 8 0 pfrule 1344 33 0 27 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 2 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 955 0 610 37 13 24 28 0 8 0 art_table 40 957 0 610 5 0 5 5 0 8 0 art_node 32 217 0 154 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 35 0 9 1 0 1 1 0 8 0 shmpl 112 58 0 4 2 0 2 2 0 8 0 dirhash 1024 54 0 37 3 0 3 3 0 8 0 dino2pl 256 5960 0 4441 97 1 96 96 0 8 0 ffsino 296 5960 0 4441 118 0 118 118 0 8 0 nchpl 144 9244 0 7531 64 0 64 64 0 8 0 rtmask 32 23 0 23 6 5 1 1 0 8 1 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 31980 0 31980 5 4 1 2 0 8 1 percpumem 16 173 0 122 1 0 1 1 0 8 0 kstatmem 264 180 0 146 4 1 3 3 0 8 0 acpiwqpl 32 3 0 3 1 0 1 1 1 8 1 scsiplug 72 10 0 10 5 5 0 1 0 8 0 scxspl 216 73358 0 73358 18 16 2 8 1 8 2 plimitpl 152 812 0 794 1 0 1 1 0 8 0 sigapl 424 2696 0 2639 7 0 7 7 0 8 0 knotepl 120 640 0 0 17 0 17 17 0 8 0 kqueuepl 224 807 0 797 10 8 2 3 0 8 1 pipepl 344 346 0 318 6 1 5 6 0 8 2 fdescpl 528 2661 0 2628 3 0 3 3 0 8 0 filepl 160 18192 0 17960 33 20 13 19 0 8 1 lockfpl 104 1134 0 1129 3 2 1 2 0 8 0 lockfspl 48 441 0 437 1 0 1 1 0 8 0 sessionpl 144 38 0 28 1 0 1 1 0 8 0 pgrppl 48 69 0 51 1 0 1 1 0 8 0 ucredpl 104 3535 0 3521 1 0 1 1 0 8 0 zombiepl 144 2984 0 2983 1 0 1 1 0 8 0 processpl 1248 2696 0 2639 5 0 5 5 0 8 0 procpl 664 6336 0 6267 9 2 7 7 0 8 0 sosppl 168 10 0 10 5 4 1 1 0 8 1 sockpl 752 4966 0 4929 49 39 10 17 0 8 4 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 127 0 0 16 0 16 16 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 51 0 0 7 0 7 7 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 287 0 0 17 0 17 17 0 8 0 bufpl 280 31718 0 25572 440 0 440 440 0 8 0 anonpl 32 15405 0 0 124 0 124 124 0 246 0 amapchunkpl 152 83395 0 82829 58 29 29 35 0 158 6 amappl16 200 10606 0 10530 75 59 16 31 0 8 3 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 167 0 154 1 0 1 1 0 8 0 amappl13 176 10 0 10 3 3 0 1 0 8 0 amappl12 168 3434 0 3401 3 1 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 264 0 262 1 0 1 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 129 0 116 1 0 1 1 0 8 0 amappl6 120 256 0 252 1 0 1 1 0 8 0 amappl5 112 158 0 148 1 0 1 1 0 8 0 amappl4 104 338 0 317 1 0 1 1 0 8 0 amappl3 96 16139 0 16013 4 0 4 4 0 8 0 amappl2 88 828 0 758 2 0 2 2 0 8 0 amappl1 80 18880 0 18182 21 4 17 17 0 8 0 amappl 88 22175 0 21990 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 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 128 259 0 259 4 4 0 1 0 8 0 dma64 64 10 0 10 4 4 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 60 0 4 2 0 2 2 0 8 0 uaddrrnd 24 2661 0 2628 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2661 0 2628 1 0 1 1 0 8 0 vmmpekpl 168 19765 0 19710 3 0 3 3 0 8 0 vmmpepl 168 172636 0 170363 147 39 108 116 0 357 2 vmsppl 488 2660 0 2628 6 1 5 5 0 8 0 rwobjpl 80 52020 0 44929 154 5 149 149 0 8 1 pdppl 4096 5330 0 5256 130 56 74 86 0 8 0 pvpl 32 24348 0 0 196 0 196 196 0 265 0 pmappl 256 2660 0 2628 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 345 0 95 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833688e7) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_p_free(ffffffff838bf400,fffffd800dd58f90) at pool_p_free+0x2d1 sys/kern/subr_pool.c:986 pool_reclaim(ffffffff838bf400) at pool_reclaim+0x2c2 sys/kern/subr_pool.c:1152 pool_reclaim_all() at pool_reclaim_all+0x48 sys/kern/subr_pool.c:-1 kern_sysctl(ffff80002a3e6e94,1,200000000180,ffff80002a3e6ec8,200000001180,4,a73350774236613) at kern_sysctl+0x1095 sys/kern/kern_sysctl.c:686 sys_sysctl(ffff80003c42f780,ffff80002a3e7000,ffff80002a3e6f50) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a3e7000) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3e7000) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb6be0a4e7e0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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(ffffffff839714e0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839714e0) at __mp_lock+0x199 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff839714e0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:367 biowait(fffffd80617e3020) at biowait+0xc6 sys/kern/vfs_bio.c:1242 bwrite(fffffd80617e3020) at bwrite+0x2e7 sys/kern/vfs_bio.c:754 ffs2_balloc(fffffd806b840290,20c000,4000,fffffd80097fb548,2,ffff80003c4b3568) at ffs2_balloc+0x18b4 sys/ufs/ffs/ffs_balloc.c:701 ffs_write(ffff80003c4b35f0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd80784ed390,ffff80003c4b37a8,7,fffffd80097fb548) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffffd805d629618,ffff80003c4b37a8,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80003c42ed20,3,ffff80003c4b37a8,0,ffff80003c4b3860) at dofilewritev+0x242 sys/kern/sys_generic.c:380 sys_write(ffff80003c42ed20,ffff80003c4b3910,ffff80003c4b3860) at sys_write+0xa2 sys/kern/sys_generic.c:300 end trace frame: 0xffff80003c4b3900, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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(ffffffff839714e0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839714e0) at __mp_lock+0x199 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff839714e0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:367 biowait(fffffd80617e3020) at biowait+0xc6 sys/kern/vfs_bio.c:1242 bwrite(fffffd80617e3020) at bwrite+0x2e7 sys/kern/vfs_bio.c:754 ffs2_balloc(fffffd806b840290,20c000,4000,fffffd80097fb548,2,ffff80003c4b3568) at ffs2_balloc+0x18b4 sys/ufs/ffs/ffs_balloc.c:701 ffs_write(ffff80003c4b35f0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd80784ed390,ffff80003c4b37a8,7,fffffd80097fb548) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffffd805d629618,ffff80003c4b37a8,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80003c42ed20,3,ffff80003c4b37a8,0,ffff80003c4b3860) at dofilewritev+0x242 sys/kern/sys_generic.c:380 sys_write(ffff80003c42ed20,ffff80003c4b3910,ffff80003c4b3860) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003c4b3910) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4b3910) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc27e0ba0a0, count: -16