panic: vopp_agenince: krice_badrnoelp dStopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 62587 3484 32767 0x10 0 1 syz-executor.6 *457764 16905 32767 0x10 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828988e5) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff800032103c88) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806399e3b0,fffffd806b632c10) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd806b632c10) at bwrite+0x1f1 sys/kern/vfs_bio.c:757 VOP_BWRITE(fffffd806b632c10) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800032103f10) at ufs_mkdir+0x52c sys/ufs/ufs/ufs_vnops.c:1175 VOP_MKDIR(fffffd805b883a78,ffff800032104070,ffff8000321040a0,ffff800032103fa0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff80002a1c1808,ffffff9c,20000040,c1) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 syscall(ffff800032104220) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800032104220) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3eb68591b30, count: 4 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: vop_generic_badop cpu1: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_vnode.c", line 953 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828988e5) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff800032103c88) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806399e3b0,fffffd806b632c10) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd806b632c10) at bwrite+0x1f1 sys/kern/vfs_bio.c:757 VOP_BWRITE(fffffd806b632c10) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800032103f10) at ufs_mkdir+0x52c sys/ufs/ufs/ufs_vnops.c:1175 VOP_MKDIR(fffffd805b883a78,ffff800032104070,ffff8000321040a0,ffff800032103fa0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff80002a1c1808,ffffff9c,20000040,c1) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 syscall(ffff800032104220) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800032104220) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3eb68591b30, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800032103bb0 rbx 0xffffffff82ca0cb7 cpu_info_full_primary+0x2cb7 rdx 0xffff800000dfe280 rcx 0xffff80002a1c1808 rax 0xffffffff82c9fff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x61638714a570453c r11 0x5df2fdcd8ca1b8b7 r12 0xffffffff82ca0ab8 cpu_info_full_primary+0x2ab8 r13 0 r14 0 r15 0x1 rip 0xffffffff816c828c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800032103ba0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) tid=457764 pid=16905 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=79, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a23b808,0xffff80002a1c1d68 process=0xffff800033f4e810 user=0xffff8000320ff000, vmspace=0xfffffd8069208c68 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 3484 62587 75446 32767 7 0x10 syz-executor.6 67223 28081 67569 32767 2 0x10 syz-executor.5 67223 264281 67569 32767 3 0x4000090 fsleep syz-executor.5 18053 254820 10856 32767 2 0x10 syz-executor.7 18053 306745 10856 32767 3 0x4000090 fsleep syz-executor.7 18053 427957 10856 32767 3 0x4000090 fsleep syz-executor.7 16905 64835 28334 32767 2 0x10 syz-executor.0 *16905 457764 28334 32767 7 0x4000010 syz-executor.0 40864 466669 77983 32767 2 0x10 syz-executor.4 40864 313650 77983 32767 3 0x4000090 fsleep syz-executor.4 75446 58178 58878 32767 3 0x90 nanoslp syz-executor.6 58878 290396 89430 0 3 0x82 wait syz-executor.6 67569 172062 91283 32767 3 0x90 nanoslp syz-executor.5 91283 47303 89430 0 3 0x82 wait syz-executor.5 10856 34723 42113 32767 3 0x90 nanoslp syz-executor.7 42113 459315 89430 0 3 0x82 wait syz-executor.7 28334 168234 79631 32767 3 0x90 nanoslp syz-executor.0 79631 418286 89430 0 3 0x82 wait syz-executor.0 77983 60972 39694 32767 3 0x90 nanoslp syz-executor.4 39694 361604 89430 0 3 0x82 wait syz-executor.4 92581 266641 44850 32767 2 0x10 syz-executor.3 44850 136423 89430 0 3 0x82 wait syz-executor.3 2258 495465 46427 32767 2 0x10 syz-executor.2 46427 64563 89430 0 3 0x82 wait syz-executor.2 92183 407387 17812 32767 2 0x10 syz-executor.1 17812 36668 89430 0 3 0x82 wait syz-executor.1 80035 76596 0 0 3 0x14200 bored sosplice 89430 480982 72299 0 3 0x2000082 thrsleep syz-fuzzer 89430 484342 72299 0 3 0x6000082 nanoslp syz-fuzzer 89430 409398 72299 0 3 0x6000082 wait syz-fuzzer 89430 155550 72299 0 3 0x6000082 kqread syz-fuzzer 89430 430845 72299 0 3 0x6000082 thrsleep syz-fuzzer 89430 475456 72299 0 3 0x6000082 wait syz-fuzzer 89430 183440 72299 0 3 0x6000082 thrsleep syz-fuzzer 89430 2040 72299 0 3 0x6000082 thrsleep syz-fuzzer 89430 205288 72299 0 3 0x6000082 wait syz-fuzzer 89430 496173 72299 0 3 0x6000082 thrsleep syz-fuzzer 89430 411886 72299 0 3 0x6000082 thrsleep syz-fuzzer 89430 507612 72299 0 3 0x6000082 wait syz-fuzzer 89430 400494 72299 0 3 0x6000082 wait syz-fuzzer 89430 155845 72299 0 3 0x6000082 wait syz-fuzzer 89430 31082 72299 0 3 0x6000082 wait syz-fuzzer 89430 196264 72299 0 3 0x6000082 wait syz-fuzzer 72299 237883 68851 0 3 0x10008a sigsusp ksh 68851 322121 53934 0 3 0x9a kqread sshd 3883 238475 1 0 3 0x100083 ttyin getty 53934 450931 1 0 3 0x88 kqread sshd 51152 427855 93933 73 3 0x1100090 kqread syslogd 93933 127078 1 0 3 0x100082 netio syslogd 92462 172461 1 0 3 0x100080 kqread resolvd 99449 492134 86458 77 3 0x100092 kqread dhcpleased 79557 455452 86458 77 3 0x100092 kqread dhcpleased 86458 141119 1 0 3 0x80 kqread dhcpleased 46490 270295 0 0 3 0x14200 bored smr 27709 140401 0 0 2 0x14200 zerothread 62149 50399 0 0 3 0x14200 aiodoned aiodoned 9253 296870 0 0 3 0x14200 syncer update 91179 396050 0 0 3 0x14200 cleaner cleaner 5015 46162 0 0 3 0x14200 reaper reaper 10851 1119 0 0 3 0x14200 pgdaemon pagedaemon 6352 466881 0 0 3 0x14200 bored viomb 11953 123899 0 0 3 0x40014200 acpi0 acpi0 66738 432753 0 0 3 0x40014200 idle1 34052 472134 0 0 3 0x14200 bored softnet3 70993 240796 0 0 3 0x14200 bored softnet2 46831 311870 0 0 3 0x14200 bored softnet1 10974 1432 0 0 3 0x14200 bored softnet0 12078 397484 0 0 3 0x14200 bored systqmp 3268 466739 0 0 3 0x14200 bored systq 61681 262427 0 0 3 0x14200 tmoslp softclockmp 8628 353608 0 0 3 0x40014200 tmoslp softclock 55884 144612 0 0 3 0x40014200 idle0 1 431872 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 67223 (syz-executor.5) thread 0xffff80002a1c12b8 (264281) exclusive rrwlock inode r = 0 (0xfffffd806c1b51b0) #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:1230 #6 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c1b5810) #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:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 16905 (syz-executor.0) thread 0xffff80002a1c1808 (457764) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82dc6010) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 biowait+0x91 sys/kern/vfs_bio.c:1254 #5 bwrite+0x21c sys/kern/vfs_bio.c:766 #6 ffs_update+0x28b sys/ufs/ffs/ffs_inode.c:111 #7 ufs_mkdir+0x517 sys/ufs/ufs/ufs_vnops.c:1175 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e2f4c50) #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:1201 #8 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #12 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c1b5920) #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:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 6412K 6419K 166960K 11456 0 pcb 15 16K 18K 166960K 21 0 rtable 240 6K 7K 166960K 4249 0 pf 29 8K 8K 166960K 141 0 ifaddr 44 16K 16K 166960K 276 0 ifgroup 50 2K 2K 166960K 274 0 sysctl 4 1K 2K 166960K 11 0 counters 64 36K 36K 166960K 176 0 ioctlops 0 0K 2K 166960K 738 0 iov 0 0K 48K 166960K 7939 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 7343 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 266 0 VM map 2 1K 1K 166960K 2 0 sem 10 1K 1K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 23 85K 113K 166960K 46906 0 sigio 0 0K 0K 166960K 1950 0 proc 56 78K 115K 166960K 4309 0 subproc 104 6K 6K 166960K 832 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 4222 0 in_multi 99 7K 7K 166960K 1253 0 ether_multi 1 0K 0K 166960K 39 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 5545 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 532 96K 113K 166960K 452880 0 UVM aobj 131 6K 6K 166960K 137 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1012 0 NDP 11 0K 2K 166960K 195 0 temp 74 6768K 6896K 166960K 110591 0 kqueue 12 18K 29K 166960K 4678 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 2551 0 2548 26 25 1 5 0 8 0 rtentry 112 782 0 669 4 0 4 4 0 8 0 unpcb 144 35355 0 35342 257 256 1 13 0 8 0 syncache 320 643 0 643 63 62 1 1 0 8 1 tcpqe 32 757 0 757 61 60 1 1 0 8 1 tcpcb 808 18991 0 18939 269 260 9 16 0 8 1 arp 120 138 0 119 1 0 1 1 0 8 0 ipq 40 180 0 178 15 14 1 1 0 8 0 ipqe 40 4597 0 4592 18 17 1 3 0 8 0 inpcb 376 40368 0 40307 420 410 10 23 0 8 0 nd6 136 239 0 213 3 1 2 2 0 8 0 kcovpl 48 64 0 56 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3069 0 2602 41 11 30 31 0 8 0 art_table 32 3070 0 2602 5 1 4 5 0 8 0 art_node 16 781 0 678 1 0 1 1 0 8 0 sysvmsgpl 40 66 0 30 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 59657 0 58111 97 0 97 97 0 8 0 ffsino 272 59657 0 58111 104 0 104 104 0 8 0 nchpl 144 120964 0 119318 63 0 63 63 0 8 0 uvmvnodes 80 6319 0 0 129 0 129 129 0 8 0 vnodes 216 6319 0 0 352 0 352 352 0 8 0 namei 1024 357186 0 357185 7 6 1 2 0 8 0 percpumem 16 102 0 56 1 0 1 1 0 8 0 kstatmem 264 134 0 112 2 0 2 2 0 8 0 scxspl 216 372809 0 372809 111 110 1 7 1 8 1 plimitpl 152 5718 0 5695 14 12 2 2 0 8 0 sigapl 424 47088 0 47035 8 1 7 7 0 8 0 futexpl 64 351626 0 351622 4 3 1 1 0 8 0 knotepl 120 1498 0 0 17 1 16 17 0 8 0 kqueuepl 216 11496 0 11488 172 169 3 10 0 8 2 pipepl 320 6770 0 6742 167 164 3 11 0 8 0 fdescpl 496 47069 0 47035 6 1 5 6 0 8 0 filepl 152 247998 0 247760 317 304 13 22 0 8 2 lockfpl 104 5765 0 5763 4 3 1 2 0 8 0 lockfspl 48 1793 0 1791 1 0 1 1 0 8 0 sessionpl 144 79 0 63 1 0 1 1 0 8 0 pgrppl 48 746 0 730 1 0 1 1 0 8 0 ucredpl 104 33252 0 33234 1 0 1 1 0 8 0 zombiepl 144 47035 0 47035 1 0 1 1 0 8 1 processpl 1136 47088 0 47035 5 0 5 5 0 8 0 procpl 680 125685 0 125612 22 14 8 9 0 8 0 sosppl 168 518 0 518 37 36 1 1 0 8 1 sockpl 584 80521 0 80443 428 418 10 28 0 8 1 mcl64k 65536 33 0 0 4 2 2 3 0 8 0 mcl16k 16384 47 0 0 4 2 2 3 0 8 0 mcl12k 12288 41 0 0 3 1 2 3 0 8 0 mcl9k 9216 33 0 0 3 1 2 2 0 8 0 mcl8k 8192 51 0 0 6 3 3 3 0 8 0 mcl4k 4096 97 0 0 4 1 3 4 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 1199 0 0 54 31 23 44 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 14609 0 0 832 0 832 832 0 8 0 bufpl 280 77802 0 71472 453 0 453 453 0 8 0 anonpl 24 8194039 0 8181277 282 174 108 174 0 186 0 amapchunkpl 152 1485501 0 1484676 237 200 37 51 0 158 0 amappl16 200 320498 0 320167 1181 1159 22 73 0 8 0 amappl15 192 34 0 33 1 0 1 1 0 8 0 amappl14 184 347 0 326 6 4 2 2 0 8 0 amappl13 176 106 0 106 26 26 0 1 0 8 0 amappl12 168 48653 0 48605 4 1 3 3 0 8 0 amappl11 160 70 0 58 1 0 1 1 0 8 0 amappl10 152 159 0 136 1 0 1 1 0 8 0 amappl9 144 404 0 403 1 0 1 1 0 8 0 amappl8 136 2225 0 1863 15 1 14 14 0 8 0 amappl7 128 435 0 410 2 0 2 2 0 8 0 amappl6 120 1458 0 1417 3 1 2 2 0 8 0 amappl5 112 864 0 856 1 0 1 1 0 8 0 amappl4 104 1870 0 1819 6 4 2 2 0 8 0 amappl3 96 279918 0 279823 58 54 4 4 0 8 1 amappl2 88 50201 0 50103 4 1 3 3 0 8 0 amappl1 80 173824 0 173293 22 9 13 22 0 8 0 amappl 88 450148 0 449899 7 0 7 7 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 47069 0 47035 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 47069 0 47035 1 0 1 1 0 8 0 vmmpekpl 168 335811 0 335739 4 0 4 4 0 8 0 vmmpepl 168 2906801 0 2904057 603 451 152 167 0 357 13 vmsppl 448 47068 0 47035 6 1 5 5 0 8 0 rwobjpl 56 867117 0 858980 150 30 120 120 0 8 0 pdppl 4096 94145 0 94070 946 865 81 89 0 8 6 pvpl 32 45128 0 0 364 0 364 364 0 265 0 pmappl 248 47068 0 47035 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2831 0 1616 36 0 36 36 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff828988e5) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff800032103c88) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806399e3b0,fffffd806b632c10) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd806b632c10) at bwrite+0x1f1 sys/kern/vfs_bio.c:757 VOP_BWRITE(fffffd806b632c10) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800032103f10) at ufs_mkdir+0x52c sys/ufs/ufs/ufs_vnops.c:1175 VOP_MKDIR(fffffd805b883a78,ffff800032104070,ffff8000321040a0,ffff800032103fa0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff80002a1c1808,ffffff9c,20000040,c1) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 syscall(ffff800032104220) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800032104220) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3eb68591b30, count: -11 ddb{0}> machine ddbcpu 1