login: panic: vpoapn_igc:en keerricn_elba d o dpi agStopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *227295 72341 32767 0x10 0x4000000 1 syz-executor.6 63690 46473 0 0x14000 0x200 0 reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82568943) at panic+0x177 sys/kern/subr_prf.c:202 vop_generic_badop(ffff80002e395308) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806496b1e0,fffffd806a95a398) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:644 bwrite(fffffd806a95a398) at bwrite+0x1f0 sys/kern/vfs_bio.c:763 VOP_BWRITE(fffffd806a95a398) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:656 ufs_mkdir(ffff80002e3955a0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1248 VOP_MKDIR(fffffd807753da98,ffff80002e395700,ffff80002e395730,ffff80002e395630) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 domkdirat(ffff80002608fa50,ffffff9c,200002c0,0) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3100 syscall(ffff80002e3958b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3958b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x737ff995830, 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/uvm/uvm_map.c", line 2734 *cpu1: vop_generic_badop ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82568943) at panic+0x177 sys/kern/subr_prf.c:202 vop_generic_badop(ffff80002e395308) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806496b1e0,fffffd806a95a398) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:644 bwrite(fffffd806a95a398) at bwrite+0x1f0 sys/kern/vfs_bio.c:763 VOP_BWRITE(fffffd806a95a398) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:656 ufs_mkdir(ffff80002e3955a0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1248 VOP_MKDIR(fffffd807753da98,ffff80002e395700,ffff80002e395730,ffff80002e395630) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 domkdirat(ffff80002608fa50,ffffff9c,200002c0,0) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3100 syscall(ffff80002e3958b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3958b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x737ff995830, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e395230 rbx 0xffff800020ce9bff rdx 0 rcx 0 rax 0xffff80002608fa50 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4fd7d710eab7c028 r11 0xec8ac483ffe8b905 r12 0xffff800020ce9a00 r13 0 r14 0 r15 0x1 rip 0xffffffff82240808 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002e395220 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.6) pid=227295 stat=onproc flags process=10 proc=4000000 pri=17, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002608e7f0,0xffff8000ffff62c0 process=0xffff8000ffff1d30 user=0xffff80002e390000, vmspace=0xfffffd8068f238b8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58844 205101 69615 32767 2 0x10 syz-executor.7 60589 217566 44549 32767 2 0x10 syz-executor.5 60589 205925 44549 32767 3 0x4000090 fsleep syz-executor.5 60589 106046 44549 32767 3 0x4000090 fsleep syz-executor.5 60589 78578 44549 32767 3 0x4000090 fsleep syz-executor.5 3991 236583 65557 32767 2 0x10 syz-executor.0 3991 86789 65557 32767 2 0x4000010 syz-executor.0 59541 208991 28783 32767 2 0x10 syz-executor.1 59541 511373 28783 32767 3 0x4000090 fsleep syz-executor.1 59541 346760 28783 32767 2 0x4000010 syz-executor.1 59541 364416 28783 32767 3 0x4000090 fsleep syz-executor.1 49178 466762 74160 32767 2 0x10 syz-executor.2 49178 45230 74160 32767 3 0x4000090 fsleep syz-executor.2 49178 225693 74160 32767 3 0x4000090 fsleep syz-executor.2 72341 208453 90854 32767 2 0x10 syz-executor.6 *72341 227295 90854 32767 7 0x4000010 syz-executor.6 74160 514225 94668 32767 3 0x90 nanoslp syz-executor.2 94668 487697 69976 0 3 0x82 wait syz-executor.2 65557 119900 15340 32767 3 0x90 nanoslp syz-executor.0 15340 206714 69976 0 3 0x82 wait syz-executor.0 60913 383868 0 0 3 0x14200 bored sosplice 69615 57685 78068 32767 2 0x10 syz-executor.7 90854 330075 57462 32767 3 0x90 nanoslp syz-executor.6 56099 317567 94377 32767 3 0x90 nanoslp syz-executor.3 57462 198809 69976 0 3 0x82 wait syz-executor.6 44549 17644 37858 32767 3 0x90 nanoslp syz-executor.5 78068 508321 69976 0 3 0x82 wait syz-executor.7 92906 262862 78320 32767 2 0x10 syz-executor.4 37858 349008 69976 0 3 0x82 wait syz-executor.5 94377 75557 69976 0 3 0x82 wait syz-executor.3 78320 385785 69976 0 3 0x82 wait syz-executor.4 28783 464989 72970 32767 3 0x90 nanoslp syz-executor.1 72970 419701 69976 0 3 0x82 wait syz-executor.1 69976 384713 10956 0 3 0x82 thrsleep syz-fuzzer 69976 311705 10956 0 3 0x4000082 nanoslp syz-fuzzer 69976 248534 10956 0 3 0x4000082 thrsleep syz-fuzzer 69976 235297 10956 0 3 0x4000082 thrsleep syz-fuzzer 69976 321640 10956 0 2 0x4000082 syz-fuzzer 69976 315538 10956 0 3 0x4000082 nanoslp syz-fuzzer 69976 59993 10956 0 3 0x4000082 thrsleep syz-fuzzer 69976 72680 10956 0 3 0x4000082 thrsleep syz-fuzzer 69976 258174 10956 0 3 0x4000082 thrsleep syz-fuzzer 10956 261283 26406 0 3 0x10008a sigsusp ksh 26406 67836 51077 0 3 0x9a kqread sshd 99637 391179 1 0 3 0x100083 ttyin getty 51077 19612 1 0 3 0x88 kqread sshd 98747 313545 15917 73 3 0x100090 kqread syslogd 15917 332937 1 0 3 0x100082 netio syslogd 55051 136817 1 0 3 0x100080 kqread resolvd 31039 315218 67967 77 3 0x100092 kqread dhcpleased 57623 445764 67967 77 3 0x100092 kqread dhcpleased 67967 375058 1 0 3 0x80 kqread dhcpleased 66482 139232 0 0 3 0x14200 bored smr 36150 47062 0 0 2 0x14200 zerothread 95181 134768 0 0 3 0x14200 aiodoned aiodoned 61094 377650 0 0 3 0x14200 syncer update 1935 471139 0 0 3 0x14200 cleaner cleaner 46473 63690 0 0 7 0x14200 reaper 15027 376598 0 0 3 0x14200 pgdaemon pagedaemon 44974 54825 0 0 3 0x14200 bored viomb 25134 446723 0 0 3 0x40014200 acpi0 acpi0 52388 494382 0 0 3 0x40014200 idle1 56910 343061 0 0 3 0x14200 bored softnet 86191 84760 0 0 3 0x14200 bored systqmp 12244 164277 0 0 3 0x14200 bored systq 78021 198080 0 0 3 0x40014200 bored softclock 6224 471860 0 0 3 0x40014200 idle0 1 338283 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 72341 (syz-executor.6) thread 0xffff80002608fa50 (227295) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82b12908) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x1b2 sys/kern/kern_synch.c:433 #4 tsleep+0x12c sys/kern/kern_synch.c:158 #5 biowait+0x91 sys/kern/vfs_bio.c:1271 #6 bwrite+0x21b sys/kern/vfs_bio.c:772 #7 ffs_update+0x27d sys/ufs/ffs/ffs_inode.c:113 #8 ufs_mkdir+0x662 sys/ufs/ufs/ufs_vnops.c:1232 #9 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #10 domkdirat+0x121 sys/kern/vfs_syscalls.c:3100 #11 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #11 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c5d2928) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vget+0x1d3 sys/kern/vfs_subr.c:677 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #10 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #11 domkdirat+0x121 sys/kern/vfs_syscalls.c:3100 #12 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c5d22c8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3085 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 92906 (syz-executor.4) thread 0xffff8000fffefa48 (262862) exclusive rrwlock inode r = 0 (0xfffffd806e3ed0a0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vn_closefile+0xc6 vn_close sys/kern/vfs_vnops.c:298 [inline] #5 vn_closefile+0xc6 sys/kern/vfs_vnops.c:624 #6 fdrop+0xc7 sys/kern/kern_descrip.c:1279 #7 closef+0x11c sys/kern/kern_descrip.c:1263 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10205 6411K 6419K 78643K 11306 0 pcb 13 10K 12K 78643K 15 0 rtable 238 6K 7K 78643K 454 0 ifaddr 81 16K 16K 78643K 103 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 35K 78643K 62 0 ioctlops 0 0K 2K 78643K 77 0 iov 0 0K 16K 78643K 92 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1271 79K 79K 78643K 1360 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 305 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 24 89K 129K 78643K 816 0 sigio 0 0K 0K 78643K 119 0 proc 56 74K 111K 78643K 552 0 subproc 104 6K 6K 78643K 143 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 54 0 in_multi 99 6K 6K 78643K 132 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 235 1049K 1049K 78643K 235 0 exec 0 0K 2K 78643K 908 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 7 26K 26K 78643K 7 0 UVM amap 345 84K 99K 78643K 11672 0 UVM aobj 130 4K 4K 78643K 133 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 19 0 NDP 11 0K 2K 78643K 36 0 temp 125 4699K 4763K 78643K 6139 0 kqueue 24 25K 26K 78643K 381 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 75 0 71 1 0 1 1 0 8 0 rtentry 112 145 0 35 4 0 4 4 0 8 0 unpcb 136 958 0 942 8 2 6 6 0 8 5 syncache 296 11 0 11 3 2 1 1 0 8 1 tcpqe 32 28 0 28 2 1 1 1 0 8 1 tcpcb 736 358 0 347 13 6 7 8 0 8 6 arp 120 24 0 6 1 0 1 1 0 8 0 ipq 40 3 0 2 2 1 1 1 0 8 0 ipqe 40 91 0 90 2 1 1 1 0 8 0 inpcb 304 707 0 699 13 7 6 9 0 8 5 nd6 48 34 0 10 1 0 1 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 598 0 145 30 1 29 30 0 8 0 art_table 32 599 0 145 4 0 4 4 0 8 0 art_node 16 144 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 7 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 302 0 292 1 0 1 1 0 8 0 shmpl 112 130 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2273 0 841 90 0 90 90 0 8 0 ffsino 272 2273 0 841 96 0 96 96 0 8 0 nchpl 144 3375 0 1745 62 0 62 62 0 8 0 uvmvnodes 80 2425 0 0 50 0 50 50 0 8 0 vnodes 224 2425 0 0 143 0 143 143 0 8 0 namei 1024 12602 0 12601 2 1 1 2 0 8 0 percpumem 16 43 0 3 1 0 1 1 0 8 0 scxspl 216 10611 0 10611 9 7 2 6 0 8 2 plimitpl 152 164 0 142 2 1 1 2 0 8 0 sigapl 424 1088 0 1038 7 1 6 7 0 8 0 futexpl 64 6756 0 6749 1 0 1 1 0 8 0 knotepl 120 222 0 0 7 0 7 7 0 8 0 kqueuepl 216 695 0 551 12 4 8 8 0 8 0 pipepl 336 263 0 234 6 0 6 6 0 8 3 fdescpl 496 1073 0 1038 7 2 5 6 0 8 0 filepl 152 7102 0 6721 18 3 15 17 0 8 0 lockfpl 104 63 0 60 1 0 1 1 0 8 0 lockfspl 48 32 0 29 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 96 841 0 823 1 0 1 1 0 8 0 zombiepl 144 1038 0 1037 1 0 1 1 0 8 0 processpl 1064 1088 0 1037 5 1 4 4 0 8 0 procpl 672 2523 0 2454 9 2 7 8 0 8 0 sosppl 168 5 0 5 2 1 1 1 0 8 1 sockpl 480 1747 0 1719 50 30 20 20 0 8 16 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 10 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 145 0 0 18 1 17 18 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 524 0 0 31 0 31 31 0 8 0 bufpl 288 5034 0 141 350 0 350 350 0 8 0 anonpl 24 261857 0 248719 116 15 101 113 0 186 10 amapchunkpl 152 28055 0 27250 48 14 34 47 0 158 0 amappl16 200 2545 0 2173 29 9 20 28 0 8 0 amappl15 192 201 0 194 1 0 1 1 0 8 0 amappl14 184 20 0 13 1 0 1 1 0 8 0 amappl13 176 107 0 103 1 0 1 1 0 8 0 amappl12 168 250 0 245 1 0 1 1 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 50 0 46 1 0 1 1 0 8 0 amappl9 144 530 0 527 1 0 1 1 0 8 0 amappl8 136 901 0 840 3 0 3 3 0 8 0 amappl7 128 402 0 381 1 0 1 1 0 8 0 amappl6 120 264 0 243 2 1 1 2 0 8 0 amappl5 112 776 0 757 1 0 1 1 0 8 0 amappl4 104 875 0 850 2 0 2 2 0 8 0 amappl3 96 437 0 418 1 0 1 1 0 8 0 amappl2 88 737 0 687 3 1 2 3 0 8 0 amappl1 80 22473 0 21831 19 4 15 18 0 8 0 amappl 88 11175 0 10898 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 72 132 0 3 3 0 3 3 0 8 0 uaddrrnd 24 1073 0 1037 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1073 0 1037 1 0 1 1 0 8 0 vmmpekpl 168 12951 0 12894 3 0 3 3 0 8 0 vmmpepl 168 102375 0 99690 136 13 123 134 0 357 0 vmsppl 368 1072 0 1037 5 1 4 5 0 8 0 rwobjpl 56 28363 0 24467 56 0 56 56 0 8 0 pdppl 4096 2153 0 2074 133 52 81 97 0 8 2 pvpl 32 570677 0 551791 249 32 217 248 0 265 56 pmappl 248 1072 0 1037 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 789 0 64 21 0 21 21 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8299aff0) at x86_ipi_db+0x1a 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_write_1(3f8,0,67) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,67) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,67) at comcnputc+0x128 sys/dev/ic/com.c:1263 cnputc(67) at cnputc+0x4b sys/dev/cons.c:239 db_putchar(67) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1068 db_printf(ffffffff825edb77) at db_printf+0x85 sys/kern/subr_prf.c:502 panic(ffffffff82574d26) at panic+0xd7 sys/kern/subr_prf.c:220 __assert(ffffffff825e983e,ffffffff82613702,aae,ffffffff825a68e6) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_map_teardown(fffffd8068f23748) at uvm_map_teardown+0x2e8 sys/uvm/uvm_map.c:2736 uvmspace_free(fffffd8068f23748) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f97a0) at reaper+0x18b sys/kern/kern_exit.c:462 end trace frame: 0x0, count: 1 ddb{0}> trace x86_ipi_db(ffffffff8299aff0) at x86_ipi_db+0x1a 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_write_1(3f8,0,67) at x86_bus_space_io_write_1+0x31 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,67) at comcnputc+0x128 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,67) at comcnputc+0x128 sys/dev/ic/com.c:1263 cnputc(67) at cnputc+0x4b sys/dev/cons.c:239 db_putchar(67) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x20ec sys/kern/subr_prf.c:1068 db_printf(ffffffff825edb77) at db_printf+0x85 sys/kern/subr_prf.c:502 panic(ffffffff82574d26) at panic+0xd7 sys/kern/subr_prf.c:220 __assert(ffffffff825e983e,ffffffff82613702,aae,ffffffff825a68e6) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_map_teardown(fffffd8068f23748) at uvm_map_teardown+0x2e8 sys/uvm/uvm_map.c:2736 uvmspace_free(fffffd8068f23748) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f97a0) at reaper+0x18b sys/kern/kern_exit.c:462 end trace frame: 0x0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82568943) at panic+0x177 sys/kern/subr_prf.c:202 vop_generic_badop(ffff80002e395308) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806496b1e0,fffffd806a95a398) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:644 bwrite(fffffd806a95a398) at bwrite+0x1f0 sys/kern/vfs_bio.c:763 VOP_BWRITE(fffffd806a95a398) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:656 ufs_mkdir(ffff80002e3955a0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1248 VOP_MKDIR(fffffd807753da98,ffff80002e395700,ffff80002e395730,ffff80002e395630) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 domkdirat(ffff80002608fa50,ffffff9c,200002c0,0) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3100 syscall(ffff80002e3958b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3958b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x737ff995830, count: 4 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82568943) at panic+0x177 sys/kern/subr_prf.c:202 vop_generic_badop(ffff80002e395308) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806496b1e0,fffffd806a95a398) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:644 bwrite(fffffd806a95a398) at bwrite+0x1f0 sys/kern/vfs_bio.c:763 VOP_BWRITE(fffffd806a95a398) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:656 ufs_mkdir(ffff80002e3955a0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1248 VOP_MKDIR(fffffd807753da98,ffff80002e395700,ffff80002e395730,ffff80002e395630) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 domkdirat(ffff80002608fa50,ffffff9c,200002c0,0) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3100 syscall(ffff80002e3958b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002e3958b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x737ff995830, count: -11