kernel: protection fault trap, code=0 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace ktrops(ffff80002121fb50,deafbeaddeafbead,0,80000100,fffffd807e0f0970,fffffd807f7d78f0) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002121fb50,deafbeaddeafbead,0,80000100,fffffd807e0f0970,fffffd807f7d78f0) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd807e0f0970,4,100,0,ffff80002121fb50) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd807e0f0970,4,100,0,ffff80002121fb50) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002121fb50,ffff80002128b3f0,ffff80002128b440) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff80002128b4c0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002128b4c0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7762cf525140, count: -5 ddb{1}> show registers rdi 0xffff80002121fb50 rsi 0xdeafbeaddeafbead rbp 0xffff80002128b1e0 rbx 0xdeafbeaddeafbead rdx 0 rcx 0x80000100 __kernel_virt_to_phys+0x100 rax 0x1 r8 0xfffffd807e0f0970 r9 0xfffffd807f7d78f0 r10 0xcc5544cd1ba7d7e2 r11 0x3175de45f5b74b6d r12 0xdeafbeaddeafbead r13 0xfffffd807f7d78f0 r14 0xffff80002121fb50 r15 0x80000100 __kernel_virt_to_phys+0x100 rip 0xffffffff81da3a9e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002128b160 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor1344724595) pid=205778 stat=onproc flags process=0 proc=0 pri=17, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000211f3318,0xffff80002121e858 process=0xffff8000ffff6198 user=0xffff800021286000, vmspace=0xfffffd806ccfa928 estcpu=4, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 19745 439732 42623 0 2 0 syz-executor1344724595 *31741 205778 44023 0 7 0 syz-executor1344724595 2647 231230 14492 0 3 0 biowait syz-executor1344724595 44023 485131 14492 0 3 0x80 nanoslp syz-executor1344724595 74958 170655 14492 0 3 0x80 nanoslp syz-executor1344724595 30843 69433 14492 0 3 0 biowait syz-executor1344724595 42623 321314 14492 0 3 0x80 nanoslp syz-executor1344724595 57636 365274 14492 0 7 0 syz-executor1344724595 51567 246424 14492 0 2 0 syz-executor1344724595 53220 418045 14492 0 2 0 syz-executor1344724595 14492 7727 91575 0 3 0x82 nanoslp syz-executor1344724595 91575 79612 4535 0 3 0x10008a sigsusp ksh 4535 270173 89659 0 3 0x9a kqread sshd 31336 228377 1 0 3 0x100083 ttyin getty 89659 430249 1 0 3 0x88 kqread sshd 68366 62055 45612 74 3 0x1100092 bpf pflogd 45612 50623 1 0 3 0x80 netio pflogd 65789 174765 22723 73 3 0x1100090 kqread syslogd 22723 99146 1 0 3 0x100082 netio syslogd 15487 312759 1 0 3 0x100080 kqread resolvd 54044 468264 3932 77 3 0x100092 kqread dhcpleased 23511 159505 3932 77 3 0x100092 kqread dhcpleased 3932 458669 1 0 3 0x80 kqread dhcpleased 77186 28724 0 0 3 0x14200 bored smr 88527 63117 0 0 3 0x14200 pgzero zerothread 61429 35054 0 0 3 0x14200 aiodoned aiodoned 46492 317345 0 0 3 0x14200 syncer update 49950 201317 0 0 3 0x14200 cleaner cleaner 47940 50901 0 0 3 0x14200 reaper reaper 11326 388338 0 0 3 0x14200 pgdaemon pagedaemon 4677 518267 0 0 3 0x14200 bored viomb 69620 319156 0 0 3 0x40014200 acpi0 acpi0 51997 108325 0 0 3 0x40014200 idle1 3787 145916 0 0 3 0x14200 bored softnet3 61994 521284 0 0 3 0x14200 bored softnet2 83038 175232 0 0 3 0x14200 bored softnet1 98847 212630 0 0 3 0x14200 bored softnet0 59620 245651 0 0 3 0x14200 bored systqmp 52137 297397 0 0 3 0x14200 bored systq 58504 196595 0 0 3 0x40014200 bored softclock 24959 488184 0 0 3 0x40014200 idle0 1 343483 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 31741 (syz-executor1344724595) thread 0xffff80002121fb50 (205778) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d7d330) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x4c6 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 getblk+0x14c sys/kern/vfs_bio.c:1038 #5 bread+0x3e bio_doread sys/kern/vfs_bio.c:433 [inline] #5 bread+0x3e sys/kern/vfs_bio.c:478 #6 ffs_update+0x14f sys/ufs/ffs/ffs_inode.c:91 #7 ufs_inactive+0x263 sys/ufs/ufs/ufs_inode.c:110 #8 VOP_INACTIVE+0xc5 sys/kern/vfs_vops.c:489 #9 vrele+0xd3 sys/kern/vfs_subr.c:827 #10 ktrsettrace+0xb7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x1a8 sys/kern/kern_ktrace.c:546 #12 doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] #12 doktrace+0x524 sys/kern/kern_ktrace.c:490 #13 sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 #14 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #14 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #15 Xsyscall+0x128 Process 2647 (syz-executor1344724595) thread 0xffff8000211f3318 (231230) exclusive rrwlock inode r = 0 (0xfffffd806c644c50) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e3bb098) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 30843 (syz-executor1344724595) thread 0xffff8000211ad310 (69433) exclusive rrwlock inode r = 0 (0xfffffd807e3bbd58) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e3bb918) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 57636 (syz-executor1344724595) thread 0xffff800021216588 (365274) exclusive rrwlock inode r = 0 (0xfffffd807e3bb1a8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807e3bbf78) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 51567 (syz-executor1344724595) thread 0xffff800021217068 (246424) exclusive rrwlock inode r = 0 (0xfffffd807e3bb2b8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vn_closefile+0xca vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0xca sys/kern/vfs_vnops.c:609 #6 fdrop+0xcb sys/kern/kern_descrip.c:1274 #7 closef+0x120 sys/kern/kern_descrip.c:1258 #8 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 53220 (syz-executor1344724595) thread 0xffff800021216018 (418045) exclusive rrwlock inode r = 0 (0xfffffd807e3bb4d8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vn_closefile+0xca vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0xca sys/kern/vfs_vnops.c:609 #6 fdrop+0xcb sys/kern/kern_descrip.c:1274 #7 closef+0x120 sys/kern/kern_descrip.c:1258 #8 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10162 6455K 6456K 78643K 11240 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 116 0 pf 15 6K 10K 78643K 26 0 ifaddr 13 9K 9K 78643K 13 0 ifgroup 22 1K 1K 78643K 22 0 counters 44 33K 33K 78643K 44 0 ioctlops 0 0K 4K 78643K 1475 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1176 74K 74K 78643K 1192 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 67 91K 91K 78643K 302 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 1K 78643K 272 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 125 6K 6K 78643K 2509 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 4 0K 0K 78643K 4 0 temp 1 5904K 5968K 78643K 3154 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 21 0 18 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpqe 32 93 0 93 1 1 0 1 0 8 0 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 368 33 0 27 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 pfstitem 24 9 0 7 2 1 1 1 0 8 0 pfstkey 128 9 0 7 2 1 1 1 0 8 0 pfstate 376 9 0 7 2 1 1 1 0 8 0 pfrule 1344 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 97 0 0 7 0 7 7 0 8 0 art_table 32 98 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1486 0 64 89 0 89 89 0 8 0 ffsino 272 1486 0 64 95 0 95 95 0 8 0 nchpl 144 1716 0 126 60 0 60 60 0 8 0 uvmvnodes 80 1500 0 0 31 0 31 31 0 8 0 vnodes 216 1500 0 0 84 0 84 84 0 8 0 namei 1024 4784 0 4782 3 1 2 2 0 8 1 percpumem 16 35 0 0 1 0 1 1 0 8 0 kstatmem 264 8 0 0 1 0 1 1 0 8 0 scxspl 216 5384 0 5382 10 9 1 8 1 8 0 plimitpl 152 17 0 10 1 0 1 1 0 8 0 sigapl 424 370 0 327 7 1 6 6 0 8 0 knotepl 120 48 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 95 0 92 2 1 1 1 0 8 0 fdescpl 496 353 0 328 4 0 4 4 0 8 0 filepl 152 1322 0 1260 3 0 3 3 0 8 0 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 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 104 71 0 59 1 0 1 1 0 8 0 zombiepl 144 328 0 327 2 1 1 1 0 8 0 processpl 1072 370 0 327 4 0 4 4 0 8 0 procpl 696 370 0 327 5 0 5 5 0 8 0 sockpl 488 89 0 65 5 1 4 4 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 273 0 0 35 1 34 35 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 301 0 0 19 0 19 19 0 8 0 bufpl 288 2617 0 90 181 0 181 181 0 8 0 anonpl 24 151530 0 149380 27 13 14 25 0 186 0 amapchunkpl 152 8139 0 7918 10 1 9 9 0 158 0 amappl16 200 4060 0 4050 6 5 1 5 0 8 0 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 115 0 103 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 882 0 860 2 1 1 2 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 12 0 12 2 1 1 1 0 8 1 amappl9 144 157 0 157 1 1 0 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 11 0 10 1 0 1 1 0 8 0 amappl6 120 159 0 144 1 0 1 1 0 8 0 amappl5 112 109 0 98 1 0 1 1 0 8 0 amappl4 104 529 0 494 3 1 2 2 0 8 1 amappl3 96 2475 0 2419 3 1 2 2 0 8 0 amappl2 88 512 0 464 3 1 2 2 0 8 0 amappl1 80 9597 0 9083 16 4 12 12 0 8 0 amappl 88 2202 0 2123 2 0 2 2 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 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 24 354 0 329 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 354 0 329 1 0 1 1 0 8 0 vmmpekpl 168 7225 0 7203 3 1 2 2 0 8 0 vmmpepl 168 35526 0 34242 67 8 59 59 0 357 2 vmsppl 464 353 0 329 4 0 4 4 0 8 0 rwobjpl 56 18331 0 16071 33 1 32 32 0 8 0 pdppl 4096 716 0 658 88 24 64 64 0 8 6 pvpl 32 256507 0 251307 64 21 43 57 0 265 0 pmappl 248 353 0 329 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 528 0 28 15 0 15 15 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82c1aff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x4f sys/dev/kcov.c:164 __mp_acquire_count(ffffffff82d7d128,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x4c6 sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 getblk(fffffd807efb1870,1fa4e0,4000,0,ffffffffffffffff) at getblk+0x14c sys/kern/vfs_bio.c:1038 bread(fffffd807efb1870,1fa4e0,4000,ffff800021266eb8) at bread+0x3e bio_doread sys/kern/vfs_bio.c:433 [inline] bread(fffffd807efb1870,1fa4e0,4000,ffff800021266eb8) at bread+0x3e sys/kern/vfs_bio.c:478 ffs_update(fffffd807e3bb110,1) at ffs_update+0x14f sys/ufs/ffs/ffs_inode.c:91 ffs_truncate(fffffd807e3bb110,0,4,fffffd807f7d78f0) at ffs_truncate+0xce7 ufs_rmdir(ffff800021267188) at ufs_rmdir+0x3a9 sys/ufs/ufs/ufs_vnops.c:1342 VOP_RMDIR(fffffd806d42b298,fffffd806c9ed020,ffff800021267268) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407 dounlinkat(ffff800021216588,ffffff9c,7762cf525150,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1880 syscall(ffff8000212673e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212673e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7762cf525140, count: -16 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff80002121fb50,deafbeaddeafbead,0,80000100,fffffd807e0f0970,fffffd807f7d78f0) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002121fb50,deafbeaddeafbead,0,80000100,fffffd807e0f0970,fffffd807f7d78f0) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd807e0f0970,4,100,0,ffff80002121fb50) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd807e0f0970,4,100,0,ffff80002121fb50) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002121fb50,ffff80002128b3f0,ffff80002128b440) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff80002128b4c0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002128b4c0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7762cf525140, count: -5