panic: vopanpi_cg:e n e r i c _ b keardnoepl diaStopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 17725 78047 32767 0x10 0x4000000 0 syz-executor.6 *494663 45556 32767 0x10 0 1 syz-executor.1 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8278856d) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff800022d094a8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806bd7b208,fffffd80662edb40) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd80662edb40) at bwrite+0x1f4 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd80662edb40) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800022d09740) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8067e81380,ffff800022d098a0,ffff800022d098d0,ffff800022d097d0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff8000212782e0,ffffff9c,76462c1fdb20,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 syscall(ffff800022d09a50) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800022d09a50) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76462c1fdb90, 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 675 *cpu1: vop_generic_badop ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8278856d) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff800022d094a8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806bd7b208,fffffd80662edb40) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd80662edb40) at bwrite+0x1f4 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd80662edb40) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800022d09740) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8067e81380,ffff800022d098a0,ffff800022d098d0,ffff800022d097d0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff8000212782e0,ffffff9c,76462c1fdb20,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 syscall(ffff800022d09a50) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800022d09a50) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76462c1fdb90, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800022d093d0 rbx 0xffff800020d59b8f rdx 0 rcx 0 rax 0xffff8000212782e0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x343edf11fa74681d r11 0xc8cfd1835050e89 r12 0xffff800020d59990 r13 0 r14 0 r15 0x1 rip 0xffffffff823bffbc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800022d093c0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=494663 stat=onproc flags process=10 proc=0 pri=17, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800021278598,0xffff800021220b10 process=0xffff8000ffff8438 user=0xffff800022d04000, vmspace=0xfffffd806e416928 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 95414 451956 63677 32767 2 0x10 syz-executor.4 73457 248712 53766 32767 2 0x10 syz-executor.2 57884 404514 87863 32767 2 0x10 syz-executor.5 78047 292965 99340 32767 2 0x10 syz-executor.6 78047 17725 99340 32767 7 0x4000010 syz-executor.6 37247 196356 20776 32767 2 0x10 syz-executor.3 20776 20085 38375 0 3 0x82 wait syz-executor.3 87863 43444 28179 32767 2 0x490 syz-executor.5 28179 257775 38375 0 3 0x82 wait syz-executor.5 63677 330970 86044 32767 3 0x90 nanoslp syz-executor.4 86044 194598 38375 0 3 0x82 wait syz-executor.4 14530 230979 68772 32767 3 0x90 nanoslp syz-executor.7 68772 256228 38375 0 3 0x82 wait syz-executor.7 57866 20925 0 0 3 0x14200 bored sosplice 99340 198219 52489 32767 2 0x490 syz-executor.6 52489 55500 38375 0 3 0x82 wait syz-executor.6 53766 161473 30721 32767 2 0x10 syz-executor.2 *45556 494663 22860 32767 7 0x10 syz-executor.1 30721 325943 38375 0 3 0x82 wait syz-executor.2 22860 368223 38375 0 3 0x82 wait syz-executor.1 92638 139273 57723 32767 2 0x490 syz-executor.0 57723 381508 38375 0 3 0x82 wait syz-executor.0 38375 130836 1915 0 3 0x82 thrsleep syz-fuzzer 38375 293710 1915 0 3 0x4000082 nanoslp syz-fuzzer 38375 39315 1915 0 3 0x4000082 wait syz-fuzzer 38375 358123 1915 0 2 0x4000082 syz-fuzzer 38375 510785 1915 0 3 0x4000082 wait syz-fuzzer 38375 218401 1915 0 3 0x4000082 wait syz-fuzzer 38375 182781 1915 0 3 0x4000082 wait syz-fuzzer 38375 198935 1915 0 3 0x4000082 wait syz-fuzzer 38375 77322 1915 0 3 0x4000082 thrsleep syz-fuzzer 38375 457718 1915 0 2 0x4000082 syz-fuzzer 38375 213196 1915 0 3 0x4000082 thrsleep syz-fuzzer 38375 474243 1915 0 3 0x4000082 thrsleep syz-fuzzer 38375 417244 1915 0 3 0x4000082 wait syz-fuzzer 38375 290482 1915 0 3 0x4000082 thrsleep syz-fuzzer 38375 391374 1915 0 3 0x4000082 wait syz-fuzzer 38375 91382 1915 0 3 0x4000082 wait syz-fuzzer 1915 370054 37070 0 3 0x10008a sigsusp ksh 37070 441247 22104 0 2 0x9a sshd 49135 254901 1 0 3 0x100083 ttyin getty 22104 41152 1 0 3 0x88 kqread sshd 10541 379886 74170 73 3 0x1100090 kqread syslogd 74170 180976 1 0 3 0x100082 netio syslogd 12896 314001 1 0 3 0x100080 kqread resolvd 62741 469941 49642 77 3 0x100092 kqread dhcpleased 90029 425324 49642 77 3 0x100092 kqread dhcpleased 49642 337549 1 0 3 0x80 kqread dhcpleased 7849 84905 0 0 3 0x14200 bored smr 12733 91198 0 0 2 0x14200 zerothread 11520 102203 0 0 3 0x14200 aiodoned aiodoned 29651 520409 0 0 3 0x14200 syncer update 63044 390710 0 0 3 0x14200 cleaner cleaner 40099 63822 0 0 3 0x14200 reaper reaper 30740 524114 0 0 3 0x14200 pgdaemon pagedaemon 69491 267955 0 0 3 0x14200 bored viomb 92437 385978 0 0 3 0x40014200 acpi0 acpi0 63125 363430 0 0 3 0x40014200 idle1 66190 390404 0 0 3 0x14200 bored softnet3 73136 389045 0 0 3 0x14200 bored softnet2 12626 395639 0 0 3 0x14200 bored softnet1 10746 306432 0 0 3 0x14200 bored softnet0 64934 500037 0 0 3 0x14200 bored systqmp 41202 113378 0 0 3 0x14200 bored systq 21712 315533 0 0 2 0x40014200 softclock 49008 268638 0 0 3 0x40014200 idle0 1 448387 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 37247 (syz-executor.3) thread 0xffff800021234de0 (196356) exclusive rrwlock inode r = 0 (0xfffffd807d848e68) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f 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:632 #9 Xsyscall+0x128 Process 45556 (syz-executor.1) thread 0xffff8000212782e0 (494663) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c4e7f0) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3c3 sys/kern/sched_bsd.c:404 #3 sleep_finish+0x184 sys/kern/kern_synch.c:417 #4 tsleep+0x12b sys/kern/kern_synch.c:155 #5 biowait+0x91 sys/kern/vfs_bio.c:1278 #6 bwrite+0x21f 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:3074 #11 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #11 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807d8486f8) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f 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:1324 #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:3074 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d5ccb48) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f 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:3059 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10214 6412K 6419K 78643K 11336 0 pcb 13 12K 14K 78643K 17 0 rtable 258 7K 7K 78643K 1982 0 ifaddr 73 24K 24K 78643K 137 0 sysctl 3 1K 5K 78643K 6 0 counters 60 35K 35K 78643K 80 0 ioctlops 0 0K 2K 78643K 259 0 iov 0 0K 32K 78643K 9149 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 14718 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 324 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 1668 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 22 81K 121K 78643K 23052 0 sigio 0 0K 0K 78643K 424 0 proc 56 78K 115K 78643K 2154 0 subproc 104 6K 6K 78643K 234 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1608 0 in_multi 99 6K 7K 78643K 442 0 ether_multi 1 0K 0K 78643K 94 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 277 1235K 1235K 78643K 277 0 exec 0 0K 1K 78643K 3903 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 487 99K 114K 78643K 235069 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 756 0 NDP 11 0K 2K 78643K 57 0 temp 124 5866K 5994K 78643K 57395 0 kqueue 12 18K 42K 78643K 5392 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 2143 0 2140 31 30 1 4 0 8 0 rtentry 112 258 0 136 4 0 4 4 0 8 0 unpcb 144 18478 0 18465 177 176 1 10 0 8 0 syncache 296 135 0 135 40 40 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 224 0 224 30 30 0 1 0 8 0 tcpcb 776 9054 0 9048 266 260 6 14 0 8 4 arp 120 44 0 25 1 0 1 1 0 8 0 ipq 40 60 0 59 18 17 1 1 0 8 0 ipqe 40 295 0 294 18 17 1 1 0 8 0 inpcb 368 19023 0 19011 337 329 8 17 0 8 6 ip6q 72 18 0 18 6 6 0 1 0 8 0 ip6af 40 40 0 40 6 6 0 1 0 8 0 nd6 136 85 0 50 2 0 2 2 0 8 0 kcovpl 48 18 0 10 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1028 0 547 32 1 31 31 0 8 0 art_table 32 1029 0 547 4 0 4 4 0 8 0 art_node 16 257 0 145 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 1660 0 1650 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 41307 0 39800 95 0 95 95 0 8 0 ffsino 272 41307 0 39800 101 0 101 101 0 8 0 nchpl 144 72327 0 70685 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 279512 0 279511 4 3 1 3 0 8 0 percpumem 16 53 0 10 1 0 1 1 0 8 0 kstatmem 264 42 0 20 2 0 2 2 0 8 0 scxspl 216 194424 0 194424 70 69 1 8 0 8 1 plimitpl 152 3749 0 3726 41 39 2 2 0 8 1 sigapl 424 23328 0 23275 9 2 7 7 0 8 0 futexpl 64 222584 0 222584 4 3 1 1 0 8 1 knotepl 120 1224 0 0 12 3 9 11 0 8 0 kqueuepl 216 25388 0 25380 259 254 5 16 0 8 4 pipepl 320 5741 0 5713 158 155 3 13 0 8 0 fdescpl 496 23310 0 23277 7 2 5 6 0 8 0 filepl 152 223330 0 223096 368 353 15 31 0 8 5 lockfpl 104 2985 0 2983 3 2 1 2 0 8 0 lockfspl 48 788 0 786 1 0 1 1 0 8 0 sessionpl 144 33 0 17 1 0 1 1 0 8 0 pgrppl 48 1764 0 1748 1 0 1 1 0 8 0 ucredpl 104 76605 0 76587 1 0 1 1 0 8 0 zombiepl 144 23277 0 23275 1 0 1 1 0 8 0 processpl 1072 23328 0 23275 5 1 4 5 0 8 0 procpl 696 68242 0 68173 45 36 9 9 0 8 1 sosppl 168 382 0 382 43 43 0 1 0 8 0 sockpl 488 40654 0 40627 833 821 12 34 0 8 7 mcl64k 65536 57 0 0 4 1 3 3 0 8 0 mcl16k 16384 33 0 0 5 2 3 3 0 8 0 mcl12k 12288 41 0 0 2 0 2 2 0 8 0 mcl9k 9216 19 0 0 2 0 2 2 0 8 0 mcl8k 8192 74 0 0 7 3 4 6 0 8 0 mcl4k 4096 56 0 0 4 1 3 3 0 8 0 mcl2k2 2112 15 0 0 1 0 1 1 0 8 0 mcl2k 2048 605 0 0 44 26 18 44 0 8 0 mtagpl 96 38 0 0 1 0 1 1 0 8 0 mbufpl 256 2609 0 0 144 1 143 143 0 8 0 bufpl 288 43606 0 37291 452 0 452 452 0 8 0 anonpl 24 2456900 0 2443604 276 162 114 115 0 186 0 amapchunkpl 152 764790 0 763940 271 230 41 60 0 158 0 amappl16 200 53923 0 53559 371 351 20 33 0 8 0 amappl15 192 12 0 11 2 1 1 1 0 8 0 amappl14 184 203 0 184 2 0 2 2 0 8 0 amappl13 176 27 0 27 7 7 0 1 0 8 0 amappl12 168 24094 0 24059 2 0 2 2 0 8 0 amappl11 160 49 0 39 1 0 1 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 386 0 386 54 53 1 2 0 8 1 amappl8 136 1280 0 1052 8 0 8 8 0 8 0 amappl7 128 217 0 197 1 0 1 1 0 8 0 amappl6 120 575 0 548 2 1 1 2 0 8 0 amappl5 112 601 0 593 1 0 1 1 0 8 0 amappl4 104 1239 0 1200 2 0 2 2 0 8 0 amappl3 96 144479 0 144403 24 21 3 4 0 8 0 amappl2 88 24901 0 24834 4 2 2 3 0 8 0 amappl1 80 88823 0 88300 22 9 13 22 0 8 0 amappl 88 233334 0 233092 13 5 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 23310 0 23277 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 23310 0 23277 1 0 1 1 0 8 0 vmmpekpl 168 193042 0 192978 4 0 4 4 0 8 0 vmmpepl 168 1375696 0 1373140 397 274 123 136 0 357 0 vmsppl 464 23309 0 23277 7 2 5 6 0 8 0 rwobjpl 56 346625 0 339039 133 22 111 112 0 8 0 pdppl 4096 46628 0 46554 655 575 80 94 0 8 6 pvpl 32 6921960 0 6903063 757 557 200 353 0 265 0 pmappl 248 23309 0 23277 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1891 0 944 28 0 28 28 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82ba3ff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x2c sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x4f acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x4f sys/dev/acpi/acpitimer.c:120 comcnputc(800,61) at comcnputc+0x1d7 sys/dev/ic/com.c:1271 cnputc(61) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20fc sys/kern/subr_prf.c:1064 db_printf(ffffffff82819894) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff8279766d) at panic+0xdb sys/kern/subr_prf.c:216 __assert(ffffffff828135c4,ffffffff827d3122,2a3,ffffffff827cacff) 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(ffffffff82ba3ff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x2c sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x4f acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x4f sys/dev/acpi/acpitimer.c:120 comcnputc(800,61) at comcnputc+0x1d7 sys/dev/ic/com.c:1271 cnputc(61) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20fc sys/kern/subr_prf.c:1064 db_printf(ffffffff82819894) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff8279766d) at panic+0xdb sys/kern/subr_prf.c:216 __assert(ffffffff828135c4,ffffffff827d3122,2a3,ffffffff827cacff) 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(ffffffff8278856d) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff800022d094a8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806bd7b208,fffffd80662edb40) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd80662edb40) at bwrite+0x1f4 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd80662edb40) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800022d09740) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8067e81380,ffff800022d098a0,ffff800022d098d0,ffff800022d097d0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff8000212782e0,ffffff9c,76462c1fdb20,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 syscall(ffff800022d09a50) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800022d09a50) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76462c1fdb90, count: 4 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8278856d) at panic+0x17b sys/kern/subr_prf.c:198 vop_generic_badop(ffff800022d094a8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806bd7b208,fffffd80662edb40) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd80662edb40) at bwrite+0x1f4 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd80662edb40) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800022d09740) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8067e81380,ffff800022d098a0,ffff800022d098d0,ffff800022d097d0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff8000212782e0,ffffff9c,76462c1fdb20,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 syscall(ffff800022d09a50) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800022d09a50) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76462c1fdb90, count: -11