uvm_fault(0xffffffff8355a950, 0xffff800028c22118, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs2_balloc+0x9fe: movq 0(%rcx,%rax,8),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND * 13450 97207 0 0x2 0x1 1K syz-executor 167595 19578 0 0x2 0 0 syz-executor ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182 syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline] syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x718727cbdeb0, 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(0xffffffff8355a950, 0xffff800028c22118, 0, 1) -> d ddb{1}> trace ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182 syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline] syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x718727cbdeb0, count: -7 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a1183f0 rbx 0 rdx 0 rcx 0xffff800028c22000 rax 0x23 r8 0xffffffffffffffff r9 0xffff80002a118448 r10 0x8ea8d80c9d78e74d r11 0x1c7542234c0e8718 r12 0x10 r13 0x1 r14 0xffffffff r15 0xfffffd8073f1d230 rip 0xffffffff82af31ae ffs2_balloc+0x9fe cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a118280 ss 0x10 ffs2_balloc+0x9fe: movq 0(%rcx,%rax,8),%r14 ddb{1}> show proc PROC (syz-executor) tid=13450 pid=97207 tcnt=1 stat=onproc flags process=2 proc=1 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff22a8,0xffff8000ffff1c10 process=0xffff80003732cda0 user=0xffff80002a113000, vmspace=0xfffffd8009302370 estcpu=36, cpticks=1, pctcpu=0.4, user=0, sys=6, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26421 355846 27837 0 2 0 syz-executor 26421 72294 27837 0 2 0x4000000 syz-executor 45809 383654 25283 0 2 0 syz-executor 45809 140775 25283 0 2 0x4000000 syz-executor 45809 359291 25283 0 2 0x4000000 syz-executor 63546 412482 53179 0 2 0x10 syz-executor 63546 5686 53179 0 3 0x4000090 fsleep syz-executor 63546 928 53179 0 2 0x4000010 syz-executor 63546 27932 53179 0 3 0x4000090 fsleep syz-executor 98762 495567 85483 0 2 0 syz-executor 98762 271130 85483 0 2 0x4000000 syz-executor 98762 275461 85483 0 3 0x4000080 fsleep syz-executor 52707 233399 82116 0 2 0x10 syz-executor 52707 430727 82116 0 2 0x4000010 syz-executor 52707 354283 82116 0 3 0x4000090 fsleep syz-executor 55388 325832 19578 0 2 0 syz-executor 55388 513080 19578 0 2 0x4000000 syz-executor 55388 304973 19578 0 3 0x4000000 vmmaplk syz-executor 26141 333073 26471 0 2 0x3 syz-executor *97207 13450 26471 0 7 0x3 syz-executor 85483 54817 26471 0 2 0x3 syz-executor 19578 167595 26471 0 7 0x2 syz-executor 82116 165196 26471 0 2 0x3 syz-executor 53179 161117 26471 0 3 0x82 nanoslp syz-executor 25283 429336 26471 0 2 0x3 syz-executor 27837 383446 26471 0 2 0x3 syz-executor 69069 257989 0 0 3 0x14280 nfsidl nfsio 81655 93405 0 0 3 0x14280 nfsidl nfsio 22559 113976 0 0 3 0x14280 nfsidl nfsio 8573 413914 0 0 3 0x14280 nfsidl nfsio 16900 268781 0 0 3 0x14280 nfsidl nfsio 59635 278333 0 0 3 0x14280 nfsidl nfsio 53614 475465 0 0 3 0x14280 nfsidl nfsio 98738 264907 0 0 3 0x14280 nfsidl nfsio 51133 348495 0 0 3 0x14280 nfsidl nfsio 93515 237709 0 0 3 0x14280 nfsidl nfsio 42816 460801 0 0 3 0x14280 nfsidl nfsio 99378 230516 0 0 3 0x14280 nfsidl nfsio 49981 212619 0 0 3 0x14280 nfsidl nfsio 22917 316214 0 0 3 0x14280 nfsidl nfsio 41291 362318 0 0 3 0x14280 nfsidl nfsio 57884 99922 0 0 3 0x14280 nfsidl nfsio 84497 102320 0 0 3 0x14280 nfsidl nfsio 86958 414908 0 0 3 0x14280 nfsidl nfsio 77694 243668 0 0 3 0x14280 nfsidl nfsio 97416 396059 0 0 3 0x14280 nfsidl nfsio 75385 309608 0 0 3 0x14200 bored sosplice 26471 465136 99803 0 3 0x82 kqread syz-executor 99803 290191 11625 0 3 0x10008a sigsusp ksh 11625 164657 47464 0 3 0x98 kqread sshd-session 47464 30413 25367 0 3 0x92 kqread sshd-session 87594 457508 1 0 3 0x100083 ttyopn getty 25367 218690 1 0 3 0x88 kqread sshd 14308 41075 17294 74 3 0x1100092 bpf pflogd 17294 12433 1 0 3 0x80 sbwait pflogd 6241 222760 34055 73 2 0x1100011 syslogd 34055 268196 1 0 3 0x100082 sbwait syslogd 74692 152406 1 0 3 0x100080 kqread resolvd 3991 180201 89066 77 3 0x100092 kqread dhcpleased 3642 37872 89066 77 3 0x100092 kqread dhcpleased 89066 82424 1 0 3 0x80 kqread dhcpleased 85720 36583 0 0 3 0x14200 bored smr 36443 276515 0 0 3 0x14200 pgzero zerothread 19942 274640 0 0 3 0x14200 aiodoned aiodoned 42423 315423 0 0 3 0x14200 syncer update 34562 338604 0 0 3 0x14200 cleaner cleaner 25670 236958 0 0 3 0x14200 reaper reaper 97404 107863 0 0 3 0x14200 pgdaemon pagedaemon 76103 28292 0 0 3 0x14200 bored viomb 58006 269677 0 0 3 0x40014200 acpi0 acpi0 56393 410695 0 0 3 0x40014200 idle1 62468 150284 0 0 3 0x14200 bored softnet3 52074 331401 0 0 3 0x14200 bored softnet2 96344 476509 0 0 3 0x14200 bored softnet1 71943 101152 0 0 3 0x14200 bored softnet0 75097 183256 0 0 3 0x14200 bored systqmp 41573 465622 0 0 3 0x14200 bored systq 97796 399850 0 0 3 0x14200 tmoslp softclockmp 18411 237207 0 0 3 0x40014200 tmoslp softclock 16888 469550 0 0 3 0x40014200 idle0 1 486573 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 45809 (syz-executor) thread 0xffff8000ffff0cd0 (359291) exclusive rrwlock inode r = 0 (0xfffffd80679672c8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 vget+0x2bd sys/kern/vfs_subr.c:676 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 ptmioctl+0x4cb sys/kern/tty_pty.c:1143 #12 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #13 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #14 sys_ioctl+0x67c #15 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #15 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 Process 55388 (syz-executor) thread 0xffff8000ffff3970 (513080) exclusive rwlock vmmaplk r = 0 (0xfffffd806bf35b40) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252 #3 uvm_map_pageable_all+0x69 sys/uvm/uvm_map.c:2329 #4 sys_mlockall+0x85 sys/uvm/uvm_mmap.c:898 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 97207 (syz-executor) thread 0xffff8000ffff3460 (13450) exclusive rrwlock inode r = 0 (0xfffffd8071eb5098) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ktrwriteraw+0x172 sys/kern/kern_ktrace.c:679 #7 ktrsyscall+0x31d sys/kern/kern_ktrace.c:182 #8 syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline] #8 syscall+0x2eb sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83513ac8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 yield+0x6a sys/kern/sched_bsd.c:320 #4 malloc+0xe5 sys/kern/kern_malloc.c:170 #5 ktrsyscall+0x17f sys/kern/kern_ktrace.c:174 #6 syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline] #6 syscall+0x2eb sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 10117K 10502K 166960K 12123 0 pcb 17 14K 16K 166960K 228 0 rtable 217 7K 8K 166960K 919 0 pf 41 18K 26K 166960K 113 0 ifaddr 43 7K 7K 166960K 124 0 ifgroup 64 2K 2K 166960K 146 0 sysctl 3 0K 0K 166960K 3 0 counters 68 36K 37K 166960K 112 0 ioctlops 0 0K 4K 166960K 1533 0 iov 0 0K 12K 166960K 135 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1433 90K 90K 166960K 2181 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 25 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 17 61K 93K 166960K 966 0 sigio 0 0K 0K 166960K 10 0 proc 72 91K 152K 166960K 1022 0 subproc 104 6K 6K 166960K 312 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 70 0 in_multi 92 7K 7K 166960K 301 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 675 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 250 75K 92K 166960K 9889 0 UVM aobj 14 2K 2K 166960K 15 0 pinsyscall 42 84K 102K 166960K 2471 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 96 0 NDP 14 0K 1K 166960K 86 0 temp 58 6820K 6886K 166960K 38901 0 kqueue 13 20K 28K 166960K 106 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 120 107 0 104 1 0 1 1 0 8 0 rtentry 112 310 0 212 4 0 4 4 0 8 0 unpcb 144 555 0 533 5 4 1 4 0 8 0 syncache 336 10 0 10 4 4 0 1 0 8 0 tcpqe 32 1 23 1 1 1 0 1 0 8 0 tcpcb 808 332 0 323 13 8 5 8 0 8 2 arp 120 53 0 35 1 0 1 1 0 8 0 inpcb 336 1183 0 1169 20 15 5 7 0 8 1 nd6 136 77 0 54 1 0 1 1 0 8 0 pkpcb 40 3 0 3 3 3 0 1 0 8 0 kcovpl 48 24 0 16 1 0 1 1 0 8 0 ppxss 1168 5 0 5 2 1 1 1 0 8 1 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 3 0 1 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 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pftag 88 2 0 1 2 1 1 1 0 8 0 pfstitem 24 89 0 54 1 0 1 1 0 8 0 pfstkey 128 89 0 54 2 0 2 2 0 8 0 pfstate 376 89 0 54 5 0 5 5 0 8 0 pfrule 1344 28 0 20 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1218 0 804 30 0 30 30 0 8 2 art_table 32 1220 0 804 4 0 4 4 0 8 0 art_node 16 307 0 218 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 3 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 2779 0 1245 96 0 96 96 0 8 0 ffsino 272 2779 0 1245 103 0 103 103 0 8 0 nchpl 144 3849 0 2133 64 0 64 64 0 8 0 uvmvnodes 80 3397 0 0 70 0 70 70 0 8 0 vnodes 216 3397 0 0 189 0 189 189 0 8 0 namei 1024 14533 0 14532 7 5 2 3 0 8 1 percpumem 16 70 0 22 1 0 1 1 0 8 0 kstatmem 264 72 0 44 3 0 3 3 0 8 1 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 19229 0 19229 10 9 1 8 1 8 1 plimitpl 152 227 0 207 1 0 1 1 0 8 0 sigapl 424 1257 0 1186 10 1 9 9 0 8 0 futexpl 64 9648 0 9644 3 2 1 1 0 8 0 knotepl 120 555 0 0 17 0 17 17 0 8 0 kqueuepl 216 230 0 220 5 4 1 5 0 8 0 pipepl 320 306 0 279 7 4 3 7 0 8 0 fdescpl 496 1218 0 1187 6 1 5 5 0 8 0 filepl 152 7119 0 6857 28 16 12 20 0 8 1 lockfpl 104 404 0 401 2 1 1 2 0 8 0 lockfspl 48 106 0 103 1 0 1 1 0 8 0 sessionpl 144 42 0 33 1 0 1 1 0 8 0 pgrppl 48 75 0 58 1 0 1 1 0 8 0 ucredpl 104 1254 0 1233 1 0 1 1 0 8 0 zombiepl 144 1467 0 1465 2 1 1 1 0 8 0 processpl 1160 1257 0 1186 7 1 6 6 0 8 0 procpl 648 2365 0 2282 9 1 8 9 0 8 1 srpgc 96 4 0 4 1 1 0 1 0 8 0 sosppl 168 6 0 5 4 3 1 1 0 8 0 sockpl 664 1856 0 1816 21 14 7 9 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 222 0 0 28 0 28 28 0 8 0 mtagpl 96 23 0 0 1 0 1 1 0 8 0 mbufpl 256 4312 0 0 270 0 270 270 0 8 0 bufpl 280 6372 0 198 442 0 442 442 0 8 0 anonpl 24 232152 0 222289 70 9 61 61 0 185 1 amapchunkpl 152 32624 0 31763 48 12 36 36 0 158 2 amappl16 200 5034 0 4988 29 23 6 16 0 8 1 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 151 0 139 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 2125 0 2094 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 140 0 140 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 137 0 125 1 0 1 1 0 8 0 amappl6 120 324 0 321 1 0 1 1 0 8 0 amappl5 112 202 0 191 1 0 1 1 0 8 0 amappl4 104 368 0 349 1 0 1 1 0 8 0 amappl3 96 6458 0 6338 5 1 4 5 0 8 0 amappl2 88 935 0 868 2 0 2 2 0 8 0 amappl1 80 11879 0 11308 14 0 14 14 0 8 0 amappl 88 9333 0 9145 5 0 5 5 0 92 0 dma16384 16384 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 128 253 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 14 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1218 0 1187 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1218 0 1187 1 0 1 1 0 8 0 vmmpekpl 168 12092 0 12042 3 0 3 3 0 8 0 vmmpepl 168 82478 0 80590 106 13 93 99 0 357 7 vmsppl 440 1217 0 1187 6 2 4 5 0 8 0 rwobjpl 56 29741 0 25361 62 0 62 62 0 8 0 pdppl 4096 2443 0 2374 141 70 71 85 0 8 2 pvpl 32 29655 0 0 240 1 239 239 0 265 0 pmappl 248 1217 0 1187 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 726 0 106 18 0 18 18 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83464ff0) 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(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800034186e10) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline] syscall(ffff800034186e10) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7461a293e1b0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83464ff0) 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(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800034186e10) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline] syscall(ffff800034186e10) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7461a293e1b0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at ffs2_balloc+0x9fe: movq 0(%rcx,%rax,8),%r14 ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182 syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline] syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x718727cbdeb0, count: 8 ddb{1}> trace ffs2_balloc(fffffd8071eb5000,bf8c0,50,fffffd807f7d36e8,1,ffff80002a118448) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a1184d0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805a596520,ffff80002a118588,3,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffff3460,fffffd805a596520,fffffd807f7d36e8,ffff80002a118650,ffff80002a118630) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrsyscall(ffff8000ffff3460,67,8,ffff80002a1187e0) at ktrsyscall+0x31d sys/kern/kern_ktrace.c:182 syscall(ffff80002a1187e0) at syscall+0x2eb mi_syscall sys/sys/syscall_mi.h:157 [inline] syscall(ffff80002a1187e0) at syscall+0x2eb sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x718727cbdeb0, count: -7