panic: vop_generpiacn_ibac:d o p Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 237290 9940 32767 0x10 0x4000000 0 syz-executor.7 *445713 10720 32767 0x10 0 1 syz-executor.5 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8278d5c0) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002128d0d8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806fd9c648,fffffd8066f975d0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8066f975d0) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8066f975d0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002128d370) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd806962d2c0,ffff80002128d4d0,ffff80002128d500,ffff80002128d400) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff800021270660,ffffff9c,6fc1c9d69f60,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff80002128d680) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002128d680) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fc1c9d69fd0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic cpu0: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/kern/kern_fork.c", line 676 *cpu1: vop_generic_badop ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8278d5c0) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002128d0d8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806fd9c648,fffffd8066f975d0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8066f975d0) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8066f975d0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002128d370) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd806962d2c0,ffff80002128d4d0,ffff80002128d500,ffff80002128d400) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff800021270660,ffffff9c,6fc1c9d69f60,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff80002128d680) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002128d680) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fc1c9d69fd0, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002128d000 rbx 0xffff800020d59b8f rdx 0 rcx 0 rax 0xffff800021270660 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9e1b63d0b9587184 r11 0x12757e16da865c61 r12 0xffff800020d59990 r13 0 r14 0 r15 0x1 rip 0xffffffff8165cbfc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002128cff0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.5) pid=445713 stat=onproc flags process=10 proc=0 pri=17, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000212716b0,0xffff800021271978 process=0xffff80002121d930 user=0xffff800021288000, vmspace=0xfffffd8069f25cd0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94215 156500 97334 32767 2 0x10 syz-executor.3 94215 74161 97334 32767 3 0x4000090 fsleep syz-executor.3 9940 72219 23015 32767 2 0x10 syz-executor.7 9940 94926 23015 32767 2 0x4000010 syz-executor.7 9940 237290 23015 32767 7 0x4000010 syz-executor.7 9940 184203 23015 32767 2 0x4000010 syz-executor.7 9940 173319 23015 32767 2 0x4000010 syz-executor.7 9940 88625 23015 32767 2 0x4000010 syz-executor.7 42128 196317 92538 32767 2 0x10 syz-executor.6 42128 180880 92538 32767 3 0x4000090 fsleep syz-executor.6 42128 208512 92538 32767 3 0x4000090 fsleep syz-executor.6 13048 511544 86414 32767 2 0x10 syz-executor.1 13048 478737 86414 32767 3 0x4000090 fsleep syz-executor.1 13048 12556 86414 32767 3 0x4000090 fsleep syz-executor.1 86437 18378 4612 32767 2 0x10 syz-executor.2 86437 7410 4612 32767 3 0x4000090 fsleep syz-executor.2 86437 88178 4612 32767 3 0x4000090 fsleep syz-executor.2 *10720 445713 80308 32767 7 0x10 syz-executor.5 80308 59512 42398 0 3 0x82 wait syz-executor.5 97334 1166 99423 32767 3 0x90 nanoslp syz-executor.3 99423 157530 42398 0 3 0x82 wait syz-executor.3 23015 113478 29146 32767 3 0x90 nanoslp syz-executor.7 29146 395926 42398 0 3 0x82 wait syz-executor.7 92538 330343 45592 32767 3 0x90 nanoslp syz-executor.6 45592 375987 42398 0 3 0x82 wait syz-executor.6 4612 463936 89343 32767 3 0x90 nanoslp syz-executor.2 89343 232988 42398 0 3 0x82 wait syz-executor.2 20385 447973 0 0 3 0x14200 bored sosplice 3791 120294 3463 32767 2 0x10 syz-executor.4 3463 25012 42398 0 3 0x82 wait syz-executor.4 86414 318233 553 32767 3 0x90 nanoslp syz-executor.1 553 56967 42398 0 3 0x82 wait syz-executor.1 37451 271250 60062 32767 2 0x10 syz-executor.0 60062 285178 42398 0 3 0x82 wait syz-executor.0 42398 208499 38757 0 3 0x82 wait syz-fuzzer 42398 393329 38757 0 3 0x4000082 nanoslp syz-fuzzer 42398 356281 38757 0 3 0x4000082 wait syz-fuzzer 42398 67018 38757 0 3 0x4000082 kqread syz-fuzzer 42398 44877 38757 0 3 0x4000082 wait syz-fuzzer 42398 280138 38757 0 3 0x4000082 thrsleep syz-fuzzer 42398 158293 38757 0 3 0x4000082 wait syz-fuzzer 42398 409249 38757 0 3 0x4000082 wait syz-fuzzer 42398 271315 38757 0 3 0x4000082 thrsleep syz-fuzzer 42398 3543 38757 0 3 0x4000082 thrsleep syz-fuzzer 42398 264887 38757 0 3 0x4000082 thrsleep syz-fuzzer 42398 368922 38757 0 3 0x4000082 thrsleep syz-fuzzer 42398 459202 38757 0 3 0x4000082 thrsleep syz-fuzzer 42398 385255 38757 0 3 0x4000082 wait syz-fuzzer 42398 344757 38757 0 3 0x4000082 wait syz-fuzzer 42398 386192 38757 0 3 0x4000082 wait syz-fuzzer 38757 345208 41684 0 3 0x10008a sigsusp ksh 41684 198325 76004 0 3 0x9a kqread sshd 72179 140265 1 0 3 0x100083 ttyin getty 76004 332887 1 0 3 0x88 kqread sshd 39781 61569 96820 73 3 0x1100090 kqread syslogd 96820 463593 1 0 3 0x100082 netio syslogd 23528 92669 1 0 3 0x100080 kqread resolvd 2243 416256 87151 77 3 0x100092 kqread dhcpleased 49101 248490 87151 77 3 0x100092 kqread dhcpleased 87151 136610 1 0 3 0x80 kqread dhcpleased 82468 502995 0 0 3 0x14200 bored smr 64703 301702 0 0 2 0x14200 zerothread 99783 354865 0 0 3 0x14200 aiodoned aiodoned 23587 232980 0 0 3 0x14200 syncer update 71544 48631 0 0 3 0x14200 cleaner cleaner 77745 83529 0 0 3 0x14200 reaper reaper 90583 10034 0 0 3 0x14200 pgdaemon pagedaemon 98482 522517 0 0 3 0x14200 bored viomb 40946 496840 0 0 3 0x40014200 acpi0 acpi0 56042 378212 0 0 3 0x40014200 idle1 16877 475394 0 0 3 0x14200 bored softnet3 59954 161580 0 0 3 0x14200 bored softnet2 71634 471797 0 0 3 0x14200 bored softnet1 13491 287909 0 0 3 0x14200 bored softnet0 86112 405450 0 0 3 0x14200 bored systqmp 6221 522353 0 0 3 0x14200 bored systq 60630 184642 0 0 3 0x40014200 bored softclock 27754 206721 0 0 3 0x40014200 idle0 1 365177 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 10720 (syz-executor.5) thread 0xffff800021270660 (445713) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82cbbd48) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:405 #3 sleep_finish+0x1e4 sys/kern/kern_synch.c:416 #4 tsleep+0x12e sys/kern/kern_synch.c:155 #5 biowait+0x91 sys/kern/vfs_bio.c:1278 #6 bwrite+0x21c sys/kern/vfs_bio.c:769 #7 ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113 #8 ufs_mkdir+0x672 sys/ufs/ufs/ufs_vnops.c:1219 #9 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #10 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #11 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #11 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069e33818) #0 witness_lock+0x447 #1 rw_enter+0x3e6 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:465 #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 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806fa02b48) #0 witness_lock+0x447 #1 rw_enter+0x3e6 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:465 #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 37451 (syz-executor.0) thread 0xffff8000212d42e0 (271250) exclusive rrwlock inode r = 0 (0xfffffd806cf00a38) #0 witness_lock+0x447 #1 rw_enter+0x3e6 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:465 #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 10202 6411K 6419K 78643K 11341 0 pcb 13 16K 18K 78643K 19 0 rtable 250 7K 7K 78643K 1692 0 pf 29 8K 8K 78643K 69 0 ifaddr 44 15K 15K 78643K 128 0 ifgroup 50 2K 2K 78643K 130 0 sysctl 3 1K 2K 78643K 6 0 counters 60 35K 35K 78643K 100 0 ioctlops 0 0K 2K 78643K 484 0 iov 0 0K 28K 78643K 3323 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 5203 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 246 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 3783 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 125K 78643K 15573 0 sigio 1 0K 0K 78643K 1019 0 proc 56 78K 115K 78643K 1825 0 subproc 104 6K 6K 78643K 364 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 49425 0 in_multi 99 7K 7K 78643K 507 0 ether_multi 1 0K 0K 78643K 44 0 mrt 2 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 205 917K 917K 78643K 205 0 exec 0 0K 1K 78643K 3196 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 519 98K 118K 78643K 156777 0 UVM aobj 131 6K 6K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 433 0 NDP 11 0K 2K 78643K 87 0 temp 74 5868K 5996K 78643K 40987 0 kqueue 12 18K 26K 78643K 1202 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 1010 0 1007 12 11 1 3 0 8 0 rtentry 112 366 0 248 4 0 4 4 0 8 0 unpcb 144 16677 0 16660 138 132 6 10 0 8 5 syncache 296 149 0 149 26 26 0 1 0 8 0 tcpqe 32 155 0 155 18 18 0 1 0 8 0 tcpcb 808 19655 0 19647 265 255 10 21 0 8 8 arp 120 61 0 42 1 0 1 1 0 8 0 ipq 40 17 0 16 8 7 1 1 0 8 0 ipqe 40 80 0 79 8 7 1 1 0 8 0 inpcb 368 27679 0 27662 268 258 10 20 0 8 8 nd6 136 116 0 85 3 1 2 2 0 8 0 kcovpl 48 28 0 20 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1452 0 967 37 6 31 32 0 8 0 art_table 32 1453 0 967 6 1 5 5 0 8 0 art_node 16 365 0 257 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 12 3 2 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 3781 0 3771 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 22838 0 21368 93 0 93 93 0 8 0 ffsino 272 22838 0 21368 99 0 99 99 0 8 0 nchpl 144 43533 0 41890 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 144021 0 144020 7 6 1 2 0 8 0 percpumem 16 63 0 20 1 0 1 1 0 8 0 kstatmem 264 62 0 40 2 0 2 2 0 8 0 scxspl 216 135468 0 135468 45 42 3 8 0 8 3 plimitpl 152 2528 0 2503 26 24 2 2 0 8 1 sigapl 424 15818 0 15766 7 0 7 7 0 8 0 futexpl 64 144790 0 144783 6 5 1 1 0 8 0 knotepl 120 569 0 0 7 0 7 7 0 8 0 kqueuepl 216 2697 0 2689 35 32 3 5 0 8 2 pipepl 320 4655 0 4626 108 102 6 11 0 8 3 fdescpl 496 15800 0 15766 7 2 5 6 0 8 0 filepl 152 121578 0 121331 161 142 19 21 0 8 8 lockfpl 104 1908 0 1906 3 2 1 2 0 8 0 lockfspl 48 479 0 477 1 0 1 1 0 8 0 sessionpl 144 43 0 27 1 0 1 1 0 8 0 pgrppl 48 1433 0 1417 1 0 1 1 0 8 0 ucredpl 104 21327 0 21309 1 0 1 1 0 8 0 zombiepl 144 15766 0 15766 1 0 1 1 0 8 1 processpl 1072 15818 0 15766 5 1 4 5 0 8 0 procpl 696 44567 0 44488 31 23 8 9 0 8 0 sosppl 168 207 0 204 19 18 1 1 0 8 0 sockpl 488 45756 0 45725 864 850 14 34 0 8 10 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 22 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 26 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 13 0 0 1 0 1 1 0 8 0 mcl2k 2048 477 0 0 39 23 16 39 0 8 0 mtagpl 96 31 0 0 1 0 1 1 0 8 0 mbufpl 256 1878 0 0 91 0 91 91 0 8 0 bufpl 288 29746 0 23428 452 0 452 452 0 8 0 anonpl 24 1632287 0 1619515 170 67 103 108 0 186 0 amapchunkpl 152 540735 0 539745 175 133 42 58 0 158 0 amappl16 200 33509 0 33190 178 159 19 30 0 8 0 amappl15 192 13 0 12 1 0 1 1 0 8 0 amappl14 184 217 0 204 2 1 1 2 0 8 0 amappl13 176 39 0 37 1 0 1 1 0 8 0 amappl12 168 16717 0 16681 2 0 2 2 0 8 0 amappl11 160 52 0 41 1 0 1 1 0 8 0 amappl10 152 54 0 39 1 0 1 1 0 8 0 amappl9 144 325 0 325 26 25 1 2 0 8 1 amappl8 136 1013 0 761 10 1 9 9 0 8 0 amappl7 128 154 0 132 1 0 1 1 0 8 0 amappl6 120 569 0 543 2 1 1 2 0 8 0 amappl5 112 511 0 505 1 0 1 1 0 8 0 amappl4 104 1195 0 1154 2 0 2 2 0 8 0 amappl3 96 96534 0 96428 25 21 4 4 0 8 1 amappl2 88 16875 0 16802 4 2 2 3 0 8 0 amappl1 80 64178 0 63657 22 10 12 22 0 8 0 amappl 88 155414 0 155125 10 2 8 8 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 15800 0 15766 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 15800 0 15766 1 0 1 1 0 8 0 vmmpekpl 168 128495 0 128435 5 1 4 4 0 8 0 vmmpepl 168 927317 0 924667 328 188 140 140 0 357 18 vmsppl 464 15799 0 15766 7 2 5 6 0 8 0 rwobjpl 56 235104 0 227498 116 5 111 111 0 8 0 pdppl 4096 31608 0 31532 508 426 82 96 0 8 6 pvpl 32 4570818 0 4551812 621 442 179 360 0 265 0 pmappl 248 15799 0 15766 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1878 0 976 27 0 27 27 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82b86ff0) 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+0x23 __mp_lock(ffffffff82cbbb40) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cbbb40) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x23 cnputc(20) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(6b) at db_putchar+0x316 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(6b) at db_putchar+0x316 sys/ddb/db_output.c:153 kprintf() at kprintf+0x20fc sys/kern/subr_prf.c:1064 db_printf(ffffffff8281bb36) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff82799462) at panic+0xdb sys/kern/subr_prf.c:216 __assert(ffffffff82818ab7,ffffffff827db450,2a4,ffffffff827d16ec) at __assert+0x29 sys/kern/subr_prf.c:157 proc_trampoline_mp() at proc_trampoline_mp+0x135 end trace frame: 0x0, count: 2 ddb{0}> trace x86_ipi_db(ffffffff82b86ff0) 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+0x23 __mp_lock(ffffffff82cbbb40) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cbbb40) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x23 cnputc(20) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(6b) at db_putchar+0x316 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(6b) at db_putchar+0x316 sys/ddb/db_output.c:153 kprintf() at kprintf+0x20fc sys/kern/subr_prf.c:1064 db_printf(ffffffff8281bb36) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff82799462) at panic+0xdb sys/kern/subr_prf.c:216 __assert(ffffffff82818ab7,ffffffff827db450,2a4,ffffffff827d16ec) at __assert+0x29 sys/kern/subr_prf.c:157 proc_trampoline_mp() at proc_trampoline_mp+0x135 end trace frame: 0x0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8278d5c0) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002128d0d8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806fd9c648,fffffd8066f975d0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8066f975d0) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8066f975d0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002128d370) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd806962d2c0,ffff80002128d4d0,ffff80002128d500,ffff80002128d400) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff800021270660,ffffff9c,6fc1c9d69f60,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff80002128d680) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002128d680) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fc1c9d69fd0, count: 4 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8278d5c0) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff80002128d0d8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806fd9c648,fffffd8066f975d0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8066f975d0) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8066f975d0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002128d370) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd806962d2c0,ffff80002128d4d0,ffff80002128d500,ffff80002128d400) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff800021270660,ffffff9c,6fc1c9d69f60,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff80002128d680) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002128d680) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fc1c9d69fd0, count: -11