Warning: Permanently added '10.128.0.56' (ED25519) to the list of known hosts. 2026/03/11 00:53:14 ignoring optional flag "type"="gce" 2026/03/11 00:53:14 parsed 1 programs 2026/03/11 00:53:16 executed programs: 0 2026/03/11 00:53:21 executed programs: 204 2026/03/11 00:53:26 executed programs: 462 panic: ufs_rename: lost dir entry Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *347966 85603 0 0 0x4000000 0K syz-executor.0 213635 25402 0 0x2 0 1 syz-executor.1 db_enter() at db_enter+0x25 panic(ffffffff834e41d5) at panic+0x1e5 ufs_rename(ffff80002a44bef8) at ufs_rename+0x175f VOP_RENAME(fffffd806acf27c8,fffffd807cb0c700,ffff80002a44c0c8,fffffd806acf2a50,0,ffff80002a44c018) at VOP_RENAME+0x137 dorenameat(ffff80002a328570,ffffff9c,200001c0,ffffff9c,20000200) at dorenameat+0x3f7 syscall(ffff80002a44c260) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc311b97650, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: ufs_rename: lost dir entry ddb{0}> trace db_enter() at db_enter+0x25 panic(ffffffff834e41d5) at panic+0x1e5 ufs_rename(ffff80002a44bef8) at ufs_rename+0x175f VOP_RENAME(fffffd806acf27c8,fffffd807cb0c700,ffff80002a44c0c8,fffffd806acf2a50,0,ffff80002a44c018) at VOP_RENAME+0x137 dorenameat(ffff80002a328570,ffffff9c,200001c0,ffffff9c,20000200) at dorenameat+0x3f7 syscall(ffff80002a44c260) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc311b97650, count: -7 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a44bc80 rbx 0xffffffff83945e07 cpu_info_full_primary+0x2e07 rdx 0x3fd rcx 0 rax 0x22 r8 0x101010101010101 r9 0x8080808080808080 r10 0x88da20eac130bae4 r11 0x77e2ba3345ee0887 r12 0xffffffff83945c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff81af46d5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a44bc70 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) tid=347966 pid=85603 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2f6038,0xffff80002a3297a8 process=0xffff8000fffec020 user=0xffff80002a447000, vmspace=0xfffffd807db61020 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 33656 164716 66718 0 2 0 syz-executor.6 33656 298491 66718 0 2 0x4000000 syz-executor.6 29762 163324 25033 0 2 0 syz-executor.4 29762 448176 25033 0 3 0x4000080 fsleep syz-executor.4 85603 275447 88882 0 2 0 syz-executor.0 85603 347739 88882 0 2 0x4000000 syz-executor.0 85603 322364 88882 0 3 0x4000000 inode syz-executor.0 *85603 347966 88882 0 7 0x4000000 syz-executor.0 73864 391098 64 0 2 0x2 syz-executor.7 8829 39676 64 0 2 0x2 syz-executor.2 29666 438176 64 0 2 0x2 syz-executor.3 25033 474248 64 0 3 0x82 nanoslp syz-executor.4 66718 505689 64 0 3 0x82 nanoslp syz-executor.6 64770 31 64 0 2 0x2 syz-executor.5 88882 297343 64 0 3 0x82 nanoslp syz-executor.0 25402 213635 64 0 7 0x2 syz-executor.1 64 165335 88871 0 3 0x82 wait syz-execprog 64 109118 88871 0 3 0x4000082 nanoslp syz-execprog 64 9665 88871 0 3 0x4000082 wait syz-execprog 64 522651 88871 0 3 0x4000082 wait syz-execprog 64 10997 88871 0 3 0x4000082 thrsleep syz-execprog 64 51398 88871 0 3 0x4000082 wait syz-execprog 64 155519 88871 0 3 0x4000082 wait syz-execprog 64 119280 88871 0 3 0x4000082 thrsleep syz-execprog 64 468426 88871 0 3 0x4000082 wait syz-execprog 64 439227 88871 0 2 0x4000082 syz-execprog 64 196055 88871 0 3 0x4000082 thrsleep syz-execprog 64 475432 88871 0 3 0x4000082 thrsleep syz-execprog 64 499379 88871 0 3 0x4000082 wait syz-execprog 64 519873 88871 0 3 0x4000082 wait syz-execprog 64 100648 88871 0 2 0x4000002 syz-execprog 88871 1424 54354 0 3 0x10008a sigsusp ksh 54354 394637 11001 0 3 0x98 kqread sshd-session 11001 9019 37054 0 3 0x92 kqread sshd-session 52583 443717 1 0 3 0x100083 ttyin getty 37054 468560 1 0 3 0x88 kqread sshd 69208 60597 79626 74 3 0x1100092 bpf pflogd 79626 402761 1 0 3 0x80 sbwait pflogd 69542 234178 66366 73 3 0x1100090 kqread syslogd 66366 421900 1 0 3 0x100082 sbwait syslogd 39890 225759 1 0 3 0x100080 kqread resolvd 45558 323717 76368 77 3 0x100092 kqread dhcpleased 24893 223955 76368 77 3 0x100092 kqread dhcpleased 76368 243587 1 0 3 0x80 kqread dhcpleased 77357 74130 0 0 3 0x14200 bored smr 88489 299396 0 0 2 0x14200 zerothread 59286 322000 0 0 3 0x14200 aiodoned aiodoned 10512 208689 0 0 3 0x14200 syncer update 94632 111767 0 0 3 0x14200 cleaner cleaner 13532 438010 0 0 3 0x14200 reaper reaper 51278 328009 0 0 3 0x14200 pgdaemon pagedaemon 81495 297381 0 0 3 0x14200 bored viomb 99466 2312 0 0 3 0x40014200 acpi0 acpi0 6375 67760 0 0 3 0x40014200 idle1 20922 77879 0 0 3 0x14200 bored softnet1 50014 480034 0 0 3 0x14200 bored softnet0 99387 137207 0 0 3 0x14200 bored systqmp 94883 381797 0 0 3 0x14200 bored systq 43859 502260 0 0 3 0x14200 tmoslp softclockmp 58655 339490 0 0 3 0x40014200 tmoslp softclock 65387 6983 0 0 3 0x40014200 idle0 1 204488 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 33656 (syz-executor.6) thread 0xffff80002a2f62d0 (298491) exclusive rrwlock inode r = 0 (0xfffffd807b80aa28) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 ufs_ihashins+0x4f #5 ffs_vget+0x187 #6 ffs_inode_alloc+0x279 #7 ufs_mkdir+0xfc #8 VOP_MKDIR+0x101 #9 domkdirat+0x179 #10 syscall+0xb17 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068501eb8) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 ufs_ihashget+0x185 #7 ffs_vget+0x8c #8 ufs_lookup+0x16bd #9 VOP_LOOKUP+0x6e #10 vfs_lookup+0x98a #11 namei+0x7ca #12 domkdirat+0x8b #13 syscall+0xb17 #14 Xsyscall+0x128 Process 85603 (syz-executor.0) thread 0xffff80002a328d38 (347739) exclusive rrwlock inode r = 0 (0xfffffd807b80a900) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vfs_lookup+0x11c #6 namei+0x7ca #7 domkdirat+0x8b #8 syscall+0xb17 #9 Xsyscall+0x128 Process 85603 (syz-executor.0) thread 0xffff80002a328570 (347966) exclusive rrwlock inode r = 0 (0xfffffd8068501450) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 ufs_ihashget+0x185 #7 ffs_vget+0x8c #8 ufs_lookup+0x1a36 #9 VOP_LOOKUP+0x6e #10 vfs_relookup+0xd4 #11 ufs_rename+0x14aa #12 VOP_RENAME+0x137 #13 dorenameat+0x3f7 #14 syscall+0xb17 #15 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807b80a6b0) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vfs_relookup+0x5c #6 ufs_rename+0x14aa #7 VOP_RENAME+0x137 #8 dorenameat+0x3f7 #9 syscall+0xb17 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8396d480) #0 witness_lock+0x5f1 #1 __mp_acquire_count+0x58 #2 sleep_finish+0x2d8 #3 biowait+0xc6 #4 bwrite+0x2e7 #5 VOP_BWRITE+0x60 #6 ufs_direnter+0x7ac #7 ufs_rename+0xdb2 #8 VOP_RENAME+0x137 #9 dorenameat+0x3f7 #10 syscall+0xb17 #11 Xsyscall+0x128 Process 73864 (syz-executor.7) thread 0xffff80002a329cc8 (391098) exclusive rrwlock inode r = 0 (0xfffffd80685018f0) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 ufs_ihashget+0x185 #7 ffs_vget+0x8c #8 ufs_lookup+0x1a36 #9 VOP_LOOKUP+0x6e #10 vfs_lookup+0x98a #11 namei+0x7ca #12 dounlinkat+0xc1 #13 syscall+0xb17 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807b80ac78) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vfs_lookup+0x11c #6 namei+0x7ca #7 dounlinkat+0xc1 #8 syscall+0xb17 #9 Xsyscall+0x128 Process 8829 (syz-executor.2) thread 0xffff80002a328fd0 (39676) exclusive rrwlock inode r = 0 (0xfffffd806b735ec0) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 ufs_ihashget+0x185 #7 ffs_vget+0x8c #8 ufs_lookup+0x1a36 #9 VOP_LOOKUP+0x6e #10 vfs_lookup+0x98a #11 namei+0x7ca #12 dounlinkat+0xc1 #13 syscall+0xb17 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b735a20) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 cache_lookup+0x351 #7 ufs_lookup+0x1e3 #8 VOP_LOOKUP+0x6e #9 vfs_lookup+0x98a #10 namei+0x7ca #11 dounlinkat+0xc1 #12 syscall+0xb17 #13 Xsyscall+0x128 Process 64770 (syz-executor.5) thread 0xffff80002a2f6800 (31) exclusive rrwlock inode r = 0 (0xfffffd807b80a210) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 ufs_ihashins+0x4f #5 ffs_vget+0x187 #6 ffs_inode_alloc+0x279 #7 ufs_mkdir+0xfc #8 VOP_MKDIR+0x101 #9 domkdirat+0x179 #10 syscall+0xb17 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806a3d8b38) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vfs_lookup+0x11c #6 namei+0x7ca #7 domkdirat+0x8b #8 syscall+0xb17 #9 Xsyscall+0x128 Process 25402 (syz-executor.1) thread 0xffff80002a261cb8 (213635) exclusive rrwlock inode r = 0 (0xfffffd806b735458) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 ufs_ihashget+0x185 #7 ffs_vget+0x8c #8 ufs_lookup+0x1a36 #9 VOP_LOOKUP+0x6e #10 vfs_lookup+0x98a #11 namei+0x7ca #12 dounlinkat+0xc1 #13 syscall+0xb17 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b735330) #0 witness_lock+0x5f1 #1 rw_do_enter_write+0x419 #2 rrw_enter+0xc6 #3 VOP_LOCK+0xbd #4 vn_lock+0xa4 #5 vget+0x2a2 #6 cache_lookup+0x351 #7 ufs_lookup+0x1e3 #8 VOP_LOOKUP+0x6e #9 vfs_lookup+0x98a #10 namei+0x7ca #11 dounlinkat+0xc1 #12 syscall+0xb17 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11053 12084K 12084K 166960K 12150 0 pcb 17 12K 12K 166960K 17 0 rtable 237 6K 7K 166960K 411 0 pf 34 17K 18K 166960K 50 0 ifaddr 43 7K 7K 166960K 53 0 ifgroup 55 2K 2K 166960K 64 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 74 0 ioctlops 0 0K 4K 166960K 1485 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1217 77K 77K 166960K 1285 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 13 45K 77K 166960K 724 0 proc 69 115K 147K 166960K 607 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 121 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 19 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 463 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 260 169K 224K 166960K 8871 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 39 78K 112K 166960K 2210 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 2K 166960K 34 0 temp 1 9068K 9132K 166960K 10440 0 kqueue 13 20K 20K 166960K 46 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 37 0 34 1 0 1 1 0 8 0 rtentry 176 133 0 23 7 1 6 6 0 8 0 unpcb 144 69 0 52 1 0 1 1 0 8 0 syncache 336 9 0 9 2 2 0 1 0 8 0 tcpcb 736 12 0 9 1 0 1 1 0 8 0 arp 136 22 0 4 1 0 1 1 0 8 0 inpcb 328 77 0 71 1 0 1 1 0 8 0 nd6 152 30 0 6 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 pfstitem 24 31 0 4 1 0 1 1 0 8 0 pfstkey 128 31 0 4 1 0 1 1 0 8 0 pfstate 448 31 0 4 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 544 0 92 32 3 29 29 0 8 0 art_table 40 545 0 92 6 1 5 5 0 8 0 art_node 32 133 0 33 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3887 0 2380 96 1 95 95 0 8 0 ffsino 296 3888 0 2380 118 1 117 117 0 8 0 nchpl 144 7006 0 5211 68 0 68 68 0 8 0 vnodes 216 3902 0 0 217 0 217 217 0 8 0 namei 1024 90801 0 90795 4 2 2 2 0 8 1 percpumem 16 52 0 2 1 0 1 1 0 8 0 kstatmem 264 30 0 4 2 0 2 2 0 8 0 scxspl 216 26094 0 26094 10 8 2 8 1 8 2 plimitpl 152 60 0 43 1 0 1 1 0 8 0 sigapl 424 1092 0 1049 9 3 6 6 0 8 0 knotepl 120 111 0 0 4 0 4 4 0 8 0 kqueuepl 224 42 0 33 1 0 1 1 0 8 0 pipepl 344 202 0 174 5 2 3 3 0 8 0 fdescpl 528 1076 0 1049 4 1 3 3 0 8 0 filepl 160 4799 0 4658 8 1 7 7 0 8 1 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 36 0 19 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 152 0 139 1 0 1 1 0 8 0 zombiepl 144 1049 0 1049 2 1 1 1 0 8 1 processpl 1232 1092 0 1049 6 1 5 5 0 8 1 procpl 664 1745 0 1683 10 3 7 7 0 8 1 sockpl 752 183 0 157 3 0 3 3 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 147 0 0 17 0 17 17 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 174 0 0 10 0 10 10 0 8 0 bufpl 280 6946 0 754 443 0 443 443 0 8 0 anonpl 32 9961 0 0 84 3 81 82 0 246 0 amapchunkpl 152 28652 0 28084 42 15 27 30 0 158 2 amappl16 200 4964 0 4852 10 3 7 7 0 8 0 amappl15 192 11 0 11 2 2 0 1 0 8 0 amappl14 184 508 0 504 2 1 1 1 0 8 0 amappl13 176 261 0 248 3 2 1 2 0 8 0 amappl12 168 1434 0 1405 3 1 2 2 0 8 0 amappl11 160 11 0 11 2 2 0 1 0 8 0 amappl10 152 173 0 147 3 1 2 2 0 8 0 amappl9 144 1005 0 1005 2 2 0 1 0 8 0 amappl8 136 306 0 272 2 0 2 2 0 8 0 amappl7 128 125 0 113 3 2 1 2 0 8 0 amappl6 120 447 0 431 3 2 1 2 0 8 0 amappl5 112 183 0 174 1 0 1 1 0 8 0 amappl4 104 999 0 955 6 4 2 4 0 8 0 amappl3 96 5195 0 5110 5 2 3 3 0 8 0 amappl2 88 980 0 926 6 4 2 4 0 8 0 amappl1 80 20590 0 19989 34 16 18 23 0 8 4 amappl 88 7648 0 7489 9 4 5 6 0 92 0 uvmvnodes 80 117 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 6 0 6 1 1 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1076 0 1049 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1076 0 1049 1 0 1 1 0 8 0 vmmpekpl 168 14671 0 14625 3 0 3 3 0 8 0 vmmpepl 168 94056 0 92189 139 17 122 128 0 357 32 vmsppl 488 1075 0 1049 6 1 5 5 0 8 0 rwobjpl 80 32228 0 31056 59 29 30 41 0 8 4 pdppl 4096 2159 0 2098 125 54 71 77 0 8 10 pvpl 32 57997 0 0 469 1 468 468 0 265 0 pmappl 256 1075 0 1049 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 306 0 65 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 panic(ffffffff834e41d5) at panic+0x1e5 ufs_rename(ffff80002a44bef8) at ufs_rename+0x175f VOP_RENAME(fffffd806acf27c8,fffffd807cb0c700,ffff80002a44c0c8,fffffd806acf2a50,0,ffff80002a44c018) at VOP_RENAME+0x137 dorenameat(ffff80002a328570,ffffff9c,200001c0,ffffff9c,20000200) at dorenameat+0x3f7 syscall(ffff80002a44c260) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcc311b97650, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299bdff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff8396cc80) at __mp_lock+0x192 __mp_acquire_count(ffffffff8396cc80,1) at __mp_acquire_count+0x58 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 getblk(fffffd800b0755e8,1fa500,4000,0,ffffffffffffffff) at getblk+0x197 bread(fffffd800b0755e8,1fa500,4000,ffff80002a2da0b0) at bread+0x45 ffs_update(fffffd806b7353b8,1) at ffs_update+0x198 ffs_truncate(fffffd806b7353b8,0,4,fffffd80097fd618) at ffs_truncate+0xc9b ufs_rmdir(ffff80002a2da380) at ufs_rmdir+0x2f1 VOP_RMDIR(fffffd806b72ec08,fffffd807cb0ce98,ffff80002a2da458) at VOP_RMDIR+0x192 dounlinkat(ffff80002a261cb8,ffffff9c,7a012fa83620,8) at dounlinkat+0x2e0 syscall(ffff80002a2da5d0) at syscall+0xb17 end trace frame: 0xffff80002a2da650, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299bdff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff8396cc80) at __mp_lock+0x192 __mp_acquire_count(ffffffff8396cc80,1) at __mp_acquire_count+0x58 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 getblk(fffffd800b0755e8,1fa500,4000,0,ffffffffffffffff) at getblk+0x197 bread(fffffd800b0755e8,1fa500,4000,ffff80002a2da0b0) at bread+0x45 ffs_update(fffffd806b7353b8,1) at ffs_update+0x198 ffs_truncate(fffffd806b7353b8,0,4,fffffd80097fd618) at ffs_truncate+0xc9b ufs_rmdir(ffff80002a2da380) at ufs_rmdir+0x2f1 VOP_RMDIR(fffffd806b72ec08,fffffd807cb0ce98,ffff80002a2da458) at VOP_RMDIR+0x192 dounlinkat(ffff80002a261cb8,ffffff9c,7a012fa83620,8) at dounlinkat+0x2e0 syscall(ffff80002a2da5d0) at syscall+0xb17 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a012fa83610, count: -15