uvm_fault(0xffffffff83a06b78, 0xffff80001a662050, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 403983 76743 0 0 0x4000000 0 syz-executor *400081 16157 0 0x2 0x1 1 syz-executor ffs2_balloc(fffffd806c7a8968,5b4ac,50,fffffd80097fd340,1,ffff80002a2c8398) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a2c8420) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806acd4c28,ffff80002a2c84d0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffd760,fffffd806acd4c28,fffffd80097fd340,ffff80002a2c85a0,ffff80002a2c8580) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a2c8720) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a2c8720) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x770817414920, count: 8 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: uvm_fault(0xffffffff83a06b78, 0xffff80001a662050, 0, 1) -> d ddb{1}> trace ffs2_balloc(fffffd806c7a8968,5b4ac,50,fffffd80097fd340,1,ffff80002a2c8398) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a2c8420) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806acd4c28,ffff80002a2c84d0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffd760,fffffd806acd4c28,fffffd80097fd340,ffff80002a2c85a0,ffff80002a2c8580) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a2c8720) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a2c8720) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x770817414920, count: -7 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a2c8340 rbx 0 rdx 0 rcx 0xffff80001a662000 rax 0xa r8 0xffffffffffffffff r9 0xffff80002a2c8398 r10 0xec7e7ca60e9fd189 r11 0xa41504891d5a6e6f r12 0x1 r13 0xffff800000c31800 r14 0xffff80002a2c81d0 r15 0xfffffd806c1dc588 rip 0xffffffff82c7da2d ffs2_balloc+0xa0d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a2c81c0 ss 0 ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14 ddb{1}> show proc PROC (syz-executor) tid=400081 pid=16157 tcnt=1 stat=onproc flags process=2 proc=1 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffd4c8,0xffff80002a243ca8 process=0xffff8000ffff0010 user=0xffff80002a2c3000, vmspace=0xfffffd806ea46d68 estcpu=36, cpticks=15, pctcpu=0.4, user=0, sys=15, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63340 9016 61801 0 2 0 syz-executor 63340 204032 61801 0 3 0x4000080 fsleep syz-executor 16449 456913 4696 0 2 0 syz-executor 54804 116885 49713 0 2 0 syz-executor 54804 318229 49713 0 3 0x4000080 fsleep syz-executor 76743 436587 17110 0 2 0 syz-executor 76743 403983 17110 0 7 0x4000000 syz-executor 72732 293555 85718 0 2 0 syz-executor 54722 57024 47701 0 2 0 syz-executor 54722 34918 47701 0 3 0x4000080 fsleep syz-executor 88993 14287 16157 0 2 0 syz-executor 88993 130777 16157 0 3 0x4000080 fsleep syz-executor 67686 255423 8779 0 2 0x2 syz-executor 65608 522778 1 0 3 0x100083 ttyin getty 16697 401813 0 0 3 0x14280 nfsidl nfsio 53462 74555 0 0 3 0x14280 nfsidl nfsio 34897 75061 0 0 3 0x14280 nfsidl nfsio 8950 52537 0 0 3 0x14280 nfsidl nfsio 57635 430318 0 0 3 0x14280 nfsidl nfsio 40809 341032 0 0 3 0x14280 nfsidl nfsio 14735 78756 0 0 3 0x14280 nfsidl nfsio 74945 461930 0 0 3 0x14280 nfsidl nfsio 58939 355169 0 0 3 0x14280 nfsidl nfsio 32998 57479 0 0 3 0x14280 nfsidl nfsio 97 499026 0 0 3 0x14280 nfsidl nfsio 41682 94224 0 0 3 0x14280 nfsidl nfsio 32757 87685 0 0 3 0x14280 nfsidl nfsio 43952 126537 0 0 3 0x14280 nfsidl nfsio 40056 19504 0 0 3 0x14280 nfsidl nfsio 3802 246546 0 0 3 0x14280 nfsidl nfsio 11494 127200 0 0 3 0x14280 nfsidl nfsio 90162 127137 0 0 3 0x14280 nfsidl nfsio 3098 78669 0 0 3 0x14280 nfsidl nfsio 24509 109635 0 0 3 0x14280 nfsidl nfsio 94885 237888 0 0 3 0x14200 acct acct 61801 339389 8779 0 2 0xc82 syz-executor 4696 70866 8779 0 2 0x2 syz-executor 49713 101807 8779 0 3 0x3 inode syz-executor 17110 60126 8779 0 2 0x2 syz-executor 85718 299177 8779 0 2 0x2 syz-executor 47701 106219 8779 0 2 0x2 syz-executor *16157 400081 8779 0 7 0x3 syz-executor 8779 392900 56264 0 3 0x82 kqread syz-executor 56264 85465 8694 0 3 0x10008a sigsusp ksh 8694 334523 25537 0 3 0x98 kqread sshd-session 25537 457705 63854 0 3 0x92 kqread sshd-session 63854 345379 1 0 3 0x88 kqread sshd 90747 393380 24913 74 3 0x1100092 bpf pflogd 24913 90668 1 0 3 0x80 sbwait pflogd 50140 457863 85334 73 3 0x1100090 kqread syslogd 85334 233131 1 0 3 0x100082 sbwait syslogd 63964 33012 1 0 3 0x100080 kqread resolvd 44779 251230 54294 77 3 0x100092 kqread dhcpleased 846 328798 54294 77 3 0x100092 kqread dhcpleased 54294 293918 1 0 3 0x80 kqread dhcpleased 26655 146344 0 0 3 0x14200 bored smr 47979 66930 0 0 2 0x14200 zerothread 8936 496458 0 0 3 0x14200 aiodoned aiodoned 28778 458188 0 0 3 0x14200 syncer update 37755 15122 0 0 3 0x14200 cleaner cleaner 19221 295217 0 0 3 0x14200 reaper reaper 94525 288623 0 0 3 0x14200 pgdaemon pagedaemon 27056 169706 0 0 3 0x14200 bored viomb 21232 426179 0 0 3 0x40014200 acpi0 acpi0 19250 430347 0 0 3 0x40014200 idle1 10921 48997 0 0 3 0x14200 bored softnet1 21744 148583 0 0 3 0x14200 bored softnet0 80447 489760 0 0 3 0x14200 bored systqmp 52328 56695 0 0 3 0x14200 bored systq 95066 51736 0 0 3 0x14200 tmoslp softclockmp 16473 360857 0 0 3 0x40014200 tmoslp softclock 45725 307131 0 0 3 0x40014200 idle0 1 430466 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 16157 (syz-executor) thread 0xffff8000ffffd760 (400081) exclusive rrwlock inode r = 0 (0xfffffd806c7a8a08) #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+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688 #7 ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #7 ktrsysret+0x192 sys/kern/kern_ktrace.c:209 #8 syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #8 syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83978940) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #1 ktrsysret+0xde sys/kern/kern_ktrace.c:209 #2 syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #2 syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 #3 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11057 12083K 12409K 166960K 12425 0 pcb 17 14K 16K 166960K 126 0 rtable 226 8K 9K 166960K 504 0 pf 37 18K 81K 166960K 106 0 ifaddr 39 6K 7K 166960K 67 0 ifgroup 51 2K 2K 166960K 79 0 sysctl 3 1K 9K 166960K 11 0 counters 68 36K 37K 166960K 90 0 ioctlops 0 0K 4K 166960K 1533 0 iov 0 0K 0K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1365 86K 86K 166960K 1628 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 363 0 sigio 0 0K 0K 166960K 2 0 proc 72 115K 180K 166960K 679 0 subproc 66 4K 4K 166960K 111 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 86 0 in_multi 88 6K 7K 166960K 146 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 13 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 448 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 219 166K 195K 166960K 4926 0 UVM aobj 13 4K 4K 166960K 13 0 pinsyscall 42 84K 107K 166960K 1608 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 11 0K 2K 166960K 44 0 temp 40 9075K 9330K 166960K 17315 0 kqueue 13 20K 24K 166960K 55 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 51 0 48 1 0 1 1 0 8 0 rtentry 176 157 0 59 6 0 6 6 0 8 0 unpcb 144 104 0 87 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 82 0 76 4 0 4 4 0 8 3 arp 136 27 0 11 1 0 1 1 0 8 0 inpcb 328 298 0 289 7 0 7 7 0 8 6 nd6 152 36 0 15 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 12 0 5 1 0 1 1 0 8 0 ppxss 1192 6 0 6 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 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 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 32 0 0 1 0 1 1 0 8 0 pfstkey 128 34 0 2 2 0 2 2 0 8 0 pfstate 448 32 0 1 4 0 4 4 0 8 0 pfrule 1360 26 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 636 0 228 29 0 29 29 0 8 2 art_table 40 637 0 228 5 0 5 5 0 8 0 art_node 32 157 0 69 1 0 1 1 0 8 0 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 10 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1889 0 416 93 0 93 93 0 8 0 ffsino 296 1889 0 416 114 0 114 114 0 8 0 nchpl 144 2298 0 587 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2173 0 0 121 0 121 121 0 8 0 namei 1024 7935 0 7935 2 1 1 2 0 8 1 percpumem 16 60 0 11 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 42 0 18 3 0 3 3 0 8 1 scxspl 216 12288 0 12288 11 3 8 8 1 8 8 plimitpl 152 54 0 37 1 0 1 1 0 8 0 sigapl 424 687 0 619 8 0 8 8 0 8 0 knotepl 120 290 0 0 9 0 9 9 0 8 0 kqueuepl 224 68 0 59 1 0 1 1 0 8 0 pipepl 344 153 0 126 3 0 3 3 0 8 0 fdescpl 528 650 0 619 3 0 3 3 0 8 0 filepl 160 2958 0 2753 13 1 12 13 0 8 2 lockfpl 104 89 0 86 1 0 1 1 0 8 0 lockfspl 48 43 0 40 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 48 0 31 1 0 1 1 0 8 0 ucredpl 104 260 0 247 1 0 1 1 0 8 0 zombiepl 144 619 0 619 1 0 1 1 0 8 1 processpl 1232 687 0 619 6 0 6 6 0 8 0 procpl 664 971 0 898 8 0 8 8 0 8 1 sockpl 752 525 0 496 10 0 10 10 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 131 0 0 17 0 17 17 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 202 0 0 13 0 13 13 0 8 0 bufpl 280 6926 0 661 448 0 448 448 0 8 0 anonpl 32 7612 0 0 62 0 62 62 0 246 0 amapchunkpl 152 14489 0 14043 34 0 34 34 0 158 16 amappl16 200 1697 0 1671 14 5 9 14 0 8 6 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 482 0 481 1 0 1 1 0 8 0 amappl13 176 143 0 131 1 0 1 1 0 8 0 amappl12 168 914 0 885 2 0 2 2 0 8 0 amappl11 160 7 0 6 1 0 1 1 0 8 0 amappl10 152 68 0 54 1 0 1 1 0 8 0 amappl9 144 272 0 271 1 0 1 1 0 8 0 amappl8 136 128 0 125 1 0 1 1 0 8 0 amappl7 128 153 0 140 1 0 1 1 0 8 0 amappl6 120 217 0 216 1 0 1 1 0 8 0 amappl5 112 90 0 79 1 0 1 1 0 8 0 amappl4 104 312 0 291 1 0 1 1 0 8 0 amappl3 96 2746 0 2647 4 0 4 4 0 8 1 amappl2 88 552 0 492 2 0 2 2 0 8 0 amappl1 80 10432 0 9828 17 3 14 16 0 8 1 amappl 88 4122 0 3975 5 0 5 5 0 92 0 uvmvnodes 80 100 0 0 3 0 3 3 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 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 2 2 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 12 0 0 1 0 1 1 0 8 0 uaddrrnd 24 650 0 619 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 650 0 619 1 0 1 1 0 8 0 vmmpekpl 168 7000 0 6954 3 0 3 3 0 8 0 vmmpepl 168 48295 0 46418 98 2 96 98 0 357 13 vmsppl 488 649 0 619 5 0 5 5 0 8 1 rwobjpl 80 15952 0 14937 27 2 25 27 0 8 0 pdppl 4096 1307 0 1238 107 34 73 85 0 8 4 pvpl 32 15019 0 0 124 2 122 122 0 265 0 pmappl 256 649 0 619 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 288 0 39 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838a9ff0) 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(ffffffff83978140) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83978140) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83978140) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83978140) at __mp_lock+0x192 sys/kern/kern_lock.c:173 vn_ioctl(fffffd806c8ef8f0,80044b02,ffff80002a316280,ffff8000fffee7e0) at vn_ioctl+0x4d sys/kern/vfs_vnops.c:514 sys_ioctl(ffff8000fffee7e0,ffff80002a316460,ffff80002a3163b0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80002a316460) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a316460) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe2ccef3f420, count: 3 ddb{0}> trace x86_ipi_db(ffffffff838a9ff0) 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(ffffffff83978140) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83978140) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83978140) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83978140) at __mp_lock+0x192 sys/kern/kern_lock.c:173 vn_ioctl(fffffd806c8ef8f0,80044b02,ffff80002a316280,ffff8000fffee7e0) at vn_ioctl+0x4d sys/kern/vfs_vnops.c:514 sys_ioctl(ffff8000fffee7e0,ffff80002a316460,ffff80002a3163b0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80002a316460) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a316460) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe2ccef3f420, count: -12 ddb{0}> machine ddbcpu 1 Stopped at ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14 ffs2_balloc(fffffd806c7a8968,5b4ac,50,fffffd80097fd340,1,ffff80002a2c8398) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a2c8420) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806acd4c28,ffff80002a2c84d0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffd760,fffffd806acd4c28,fffffd80097fd340,ffff80002a2c85a0,ffff80002a2c8580) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a2c8720) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a2c8720) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x770817414920, count: 8 ddb{1}> trace ffs2_balloc(fffffd806c7a8968,5b4ac,50,fffffd80097fd340,1,ffff80002a2c8398) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a2c8420) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd806acd4c28,ffff80002a2c84d0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffd760,fffffd806acd4c28,fffffd80097fd340,ffff80002a2c85a0,ffff80002a2c8580) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffd760,5b,0,ffff80002a2c8670) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a2c8720) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a2c8720) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x770817414920, count: -7