uvm_fault(0xffffffff836190a8, 0xffff800028da2004, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_blkfree+0x263: movl 0x4(%r13),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND 461756 35828 0 0 0 0 syz-executor * 57464 72858 0 0x2 0 1K syz-executor ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806dd91cd0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a0c03d8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806d310060,ffff8000ffff7bf8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806d310060) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a0c0600) at ufs_mkdir+0x6be VOP_MKDIR(fffffd8071d1bbd0,ffff80002a0c0760,ffff80002a0c0790,ffff80002a0c0690) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000ffff7bf8,ffffff9c,7b6ed91e08d0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a0c0910) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c0910) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b6ed91e0960, count: 5 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(0xffffffff836190a8, 0xffff800028da2004, 0, 1) -> d ddb{1}> trace ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806dd91cd0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a0c03d8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806d310060,ffff8000ffff7bf8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806d310060) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a0c0600) at ufs_mkdir+0x6be VOP_MKDIR(fffffd8071d1bbd0,ffff80002a0c0760,ffff80002a0c0790,ffff80002a0c0690) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000ffff7bf8,ffffff9c,7b6ed91e08d0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a0c0910) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c0910) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b6ed91e0960, count: -10 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a0c0150 rbx 0x3451f acpi_pdirpa+0x20390 rdx 0 rcx 0xffff8000ffff7bf8 rax 0xffff800029b7bff0 r8 0xffffffffffffffff r9 0xffffffffffffffff r10 0x75131d0ab8afcb82 r11 0xe6a4fbf1512776ad r12 0xfffffd8078ddd358 r13 0xffff800028da2000 r14 0xffff800000a5f000 r15 0 rip 0xffffffff82c23c93 ffs_blkfree+0x263 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a0c0090 ss 0x10 ffs_blkfree+0x263: movl 0x4(%r13),%r15d ddb{1}> show proc PROC (syz-executor) tid=57464 pid=72858 tcnt=1 stat=onproc flags process=2 proc=0 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff6a40,0xffff8000ffff7470 process=0xffff8000ffffa450 user=0xffff80002a0bb000, vmspace=0xfffffd806a5986e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=7, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 38773 285270 55870 0 2 0 syz-executor 38773 94630 55870 0 2 0x4000000 syz-executor 8801 286557 62090 0 2 0 syz-executor 11169 399835 43498 0 2 0 syz-executor 11169 460166 43498 0 2 0x4000000 syz-executor 35828 461756 52721 0 7 0 syz-executor 35828 203738 52721 0 2 0x4000000 syz-executor 35828 233386 52721 0 2 0x4000000 syz-executor 75881 209465 54563 0 2 0 syz-executor 75881 154596 54563 0 3 0x4000080 fsleep syz-executor 22396 323829 51355 0 2 0 syz-executor 22396 77397 51355 0 3 0x4000080 ttyout syz-executor 22396 253671 51355 0 3 0x4000080 ttyout syz-executor 51926 311974 17209 0 2 0 syz-executor 64958 281747 0 0 3 0x14200 acct acct 13210 164105 1 0 3 0x100083 ttyin getty 51355 412698 1150 0 3 0x82 nanoslp syz-executor 52721 112525 1150 0 3 0x82 nanoslp syz-executor 54563 18909 1150 0 3 0x82 nanoslp syz-executor 55870 490847 1150 0 3 0x82 nanoslp syz-executor 43498 380006 1150 0 3 0x82 nanoslp syz-executor 62090 59092 1150 0 3 0x82 nanoslp syz-executor *72858 57464 1150 0 7 0x2 syz-executor 17209 264431 1150 0 3 0x82 nanoslp syz-executor 19349 412557 0 0 3 0x14200 bored sosplice 93675 251828 0 0 3 0x14280 nfsidl nfsio 79555 388759 0 0 3 0x14280 nfsidl nfsio 81600 326182 0 0 3 0x14280 nfsidl nfsio 22614 227430 0 0 3 0x14280 nfsidl nfsio 84076 44637 0 0 3 0x14280 nfsidl nfsio 31376 330315 0 0 3 0x14280 nfsidl nfsio 47345 415315 0 0 3 0x14280 nfsidl nfsio 96149 339060 0 0 3 0x14280 nfsidl nfsio 89859 275724 0 0 3 0x14280 nfsidl nfsio 15238 385511 0 0 3 0x14280 nfsidl nfsio 89537 336414 0 0 3 0x14280 nfsidl nfsio 68521 510443 0 0 3 0x14280 nfsidl nfsio 25942 61933 0 0 3 0x14280 nfsidl nfsio 86380 468838 0 0 3 0x14280 nfsidl nfsio 67105 199014 0 0 3 0x14280 nfsidl nfsio 95591 179368 0 0 3 0x14280 nfsidl nfsio 5654 140546 0 0 3 0x14280 nfsidl nfsio 32933 122005 0 0 3 0x14280 nfsidl nfsio 73726 397635 0 0 3 0x14280 nfsidl nfsio 83810 252357 0 0 3 0x14280 nfsidl nfsio 1150 360423 21805 0 3 0x82 kqread syz-executor 21805 336724 17809 0 3 0x10008a sigsusp ksh 17809 366141 20753 0 3 0x98 kqread sshd-session 20753 190248 1953 0 3 0x92 kqread sshd-session 1953 141722 1 0 3 0x88 kqread sshd 40141 122922 98232 74 3 0x1100092 bpf pflogd 98232 516131 1 0 3 0x80 sbwait pflogd 89356 352926 53857 73 3 0x1100090 kqread syslogd 53857 286945 1 0 3 0x100082 sbwait syslogd 11676 402743 1 0 3 0x100080 kqread resolvd 76528 61661 24515 77 3 0x100092 kqread dhcpleased 27003 281820 24515 77 3 0x100092 kqread dhcpleased 24515 439838 1 0 3 0x80 kqread dhcpleased 15343 56588 0 0 3 0x14200 bored smr 8479 312594 0 0 2 0x14200 zerothread 31798 109415 0 0 3 0x14200 aiodoned aiodoned 40325 463529 0 0 3 0x14200 syncer update 61447 339091 0 0 3 0x14200 cleaner cleaner 44270 267575 0 0 3 0x14200 reaper reaper 92473 61379 0 0 3 0x14200 pgdaemon pagedaemon 20223 400976 0 0 3 0x14200 bored viomb 80762 254140 0 0 3 0x40014200 acpi0 acpi0 40212 261577 0 0 3 0x40014200 idle1 10325 200378 0 0 3 0x14200 bored softnet3 37298 164481 0 0 3 0x14200 bored softnet2 53307 126174 0 0 3 0x14200 bored softnet1 85136 61264 0 0 3 0x14200 bored softnet0 5550 298509 0 0 3 0x14200 bored systqmp 60918 254864 0 0 3 0x14200 bored systq 79841 315256 0 0 3 0x14200 tmoslp softclockmp 28744 356696 0 0 3 0x40014200 tmoslp softclock 25837 488165 0 0 3 0x40014200 idle0 1 397167 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 72858 (syz-executor) thread 0xffff8000ffff7bf8 (57464) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8362f4e0) #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 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 #7 ufs_mkdir+0x55a sys/ufs/ufs/ufs_vnops.c:1160 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806dd91d68) #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 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8078dee3c8) #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10215 10233K 10491K 166960K 11968 0 pcb 17 14K 14K 166960K 154 0 rtable 219 6K 6K 166960K 1103 0 pf 37 18K 25K 166960K 141 0 ifaddr 44 8K 8K 166960K 158 0 ifgroup 59 2K 2K 166960K 184 0 sysctl 2 0K 1K 166960K 3 0 counters 66 36K 36K 166960K 134 0 ioctlops 0 0K 4K 166960K 1552 0 iov 1 4K 28K 166960K 36 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1378 87K 87K 166960K 2013 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 85 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 17 61K 97K 166960K 943 0 sigio 0 0K 0K 166960K 10 0 proc 72 91K 140K 166960K 1255 0 subproc 104 6K 7K 166960K 416 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 126 0 in_multi 99 7K 7K 166960K 382 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 752 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 218 72K 94K 166960K 8946 0 UVM aobj 18 2K 2K 166960K 18 0 pinsyscall 42 84K 104K 166960K 2643 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 27 0 NDP 13 0K 2K 166960K 112 0 temp 52 6818K 7076K 166960K 28856 0 kqueue 13 20K 28K 166960K 104 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 120 108 0 105 1 0 1 1 0 8 0 rtentry 112 379 0 278 4 0 4 4 0 8 0 unpcb 144 336 0 319 3 1 2 2 0 8 1 syncache 336 4 0 4 3 2 1 1 0 8 1 tcpcb 808 126 0 121 4 2 2 2 0 8 1 arp 120 67 0 49 1 0 1 1 0 8 0 inpcb 336 745 0 735 13 6 7 7 0 8 5 nd6 136 97 0 73 1 0 1 1 0 8 0 pkpcb 40 4 0 4 3 2 1 1 0 8 1 kcovpl 48 32 0 24 1 0 1 1 0 8 0 ppxss 1168 6 0 6 3 2 1 1 0 8 1 pffrag 232 9 0 8 2 1 1 1 0 482 0 pffrnode 88 5 0 4 2 1 1 1 0 8 0 pffrent 40 84 0 83 2 1 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 2 0 1 2 1 1 1 0 8 0 pfstitem 24 75 0 33 1 0 1 1 0 8 0 pfstkey 128 79 0 37 2 0 2 2 0 8 0 pfstate 376 76 0 35 6 1 5 5 0 8 0 pfrule 1344 26 0 18 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1548 0 1103 29 0 29 29 0 8 1 art_table 32 1549 0 1103 4 0 4 4 0 8 0 art_node 16 378 0 287 1 0 1 1 0 8 0 sysvmsgpl 40 50 0 10 1 0 1 1 0 8 0 semapl 112 83 0 73 1 0 1 1 0 8 0 shmpl 112 15 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2433 0 889 98 0 98 98 0 8 0 ffsino 272 2433 0 889 104 0 104 104 0 8 0 nchpl 144 3348 0 2788 64 31 33 64 0 8 8 uvmvnodes 80 3034 0 0 62 0 62 62 0 8 0 vnodes 216 3034 0 0 169 0 169 169 0 8 0 namei 1024 13005 0 13004 4 3 1 2 0 8 0 percpumem 16 81 0 34 1 0 1 1 0 8 0 kstatmem 264 94 0 68 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 20633 0 20633 14 10 4 8 1 8 4 plimitpl 152 114 0 96 1 0 1 1 0 8 0 sigapl 424 1237 0 1166 13 3 10 11 0 8 0 futexpl 64 7278 0 7277 3 2 1 1 0 8 0 knotepl 120 581 0 0 17 0 17 17 0 8 0 kqueuepl 216 164 0 155 1 0 1 1 0 8 0 pipepl 320 290 0 263 8 5 3 8 0 8 0 fdescpl 496 1177 0 1146 8 3 5 6 0 8 0 filepl 152 5352 0 5102 20 7 13 16 0 8 2 lockfpl 104 188 0 185 1 0 1 1 0 8 0 lockfspl 48 79 0 76 1 0 1 1 0 8 0 sessionpl 144 47 0 38 1 0 1 1 0 8 0 pgrppl 48 84 0 67 1 0 1 1 0 8 0 ucredpl 104 652 0 639 1 0 1 1 0 8 0 zombiepl 144 1166 0 1166 1 0 1 1 0 8 1 processpl 1160 1237 0 1166 8 1 7 7 0 8 0 procpl 648 2033 0 1955 10 1 9 9 0 8 0 sosppl 168 3 0 3 1 1 0 1 0 8 0 sockpl 664 1200 0 1170 15 7 8 10 0 8 4 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 234 0 0 30 0 30 30 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 1045 0 0 64 0 64 64 0 8 0 bufpl 280 6583 0 409 442 0 442 442 0 8 0 anonpl 24 225420 0 222000 60 10 50 60 0 185 18 amapchunkpl 152 28201 0 27766 32 1 31 32 0 158 10 amappl16 200 4940 0 4915 28 16 12 15 0 8 8 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 177 0 165 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 2201 0 2170 4 2 2 3 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 135 0 135 1 1 0 1 0 8 0 amappl8 136 45 0 42 1 0 1 1 0 8 0 amappl7 128 155 0 143 1 0 1 1 0 8 0 amappl6 120 409 0 406 1 0 1 1 0 8 0 amappl5 112 227 0 215 1 0 1 1 0 8 0 amappl4 104 399 0 379 1 0 1 1 0 8 0 amappl3 96 5569 0 5472 4 0 4 4 0 8 0 amappl2 88 1012 0 945 2 0 2 2 0 8 0 amappl1 80 11353 0 10793 15 2 13 14 0 8 0 amappl 88 8362 0 8207 6 1 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 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 17 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1177 0 1146 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1177 0 1146 1 0 1 1 0 8 0 vmmpekpl 168 11133 0 11071 4 0 4 4 0 8 0 vmmpepl 168 78919 0 77104 103 10 93 94 0 357 10 vmsppl 440 1176 0 1146 6 2 4 5 0 8 0 rwobjpl 56 28238 0 24296 58 2 56 56 0 8 0 pdppl 4096 2361 0 2292 137 66 71 87 0 8 2 pvpl 32 28536 0 0 232 1 231 232 0 265 0 pmappl 248 1176 0 1146 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 500 0 83 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83466ff0) 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(ffffffff8362f2d8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362f2d8) 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 end of kernel end trace frame: 0x707f047d6030, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83466ff0) 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(ffffffff8362f2d8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362f2d8) 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 end of kernel end trace frame: 0x707f047d6030, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ffs_blkfree+0x263: movl 0x4(%r13),%r15d ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806dd91cd0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a0c03d8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806d310060,ffff8000ffff7bf8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806d310060) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a0c0600) at ufs_mkdir+0x6be VOP_MKDIR(fffffd8071d1bbd0,ffff80002a0c0760,ffff80002a0c0790,ffff80002a0c0690) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000ffff7bf8,ffffff9c,7b6ed91e08d0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a0c0910) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c0910) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b6ed91e0960, count: 5 ddb{1}> trace ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline] ffs_blkfree(fffffd806dd91cd0,3451f,800) at ffs_blkfree+0x263 sys/ufs/ffs/ffs_alloc.c:1272 ffs_truncate(fffffd806dd91cd0,0,0,ffffffffffffffff) at ffs_truncate+0x139f sys/ufs/ffs/ffs_inode.c:325 ufs_inactive(ffff80002a0c03d8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806d310060,ffff8000ffff7bf8) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495 vput(fffffd806d310060) at vput+0xe5 sys/kern/vfs_subr.c:779 ufs_mkdir(ffff80002a0c0600) at ufs_mkdir+0x6be VOP_MKDIR(fffffd8071d1bbd0,ffff80002a0c0760,ffff80002a0c0790,ffff80002a0c0690) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000ffff7bf8,ffffff9c,7b6ed91e08d0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a0c0910) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c0910) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b6ed91e0960, count: -10