ppanic: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_map.c", line 2526 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 435646 79826 32767 0x10 0 0 syz-executor.5 *521367 81253 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82794322) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8280f865,ffffffff8283d9b9,9de,ffffffff827c6ec9) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd806a2db928) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd806a2db928) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ac830) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: 9 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: vop_generic_badop cpu1: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_map.c", line 2526 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82794322) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8280f865,ffffffff8283d9b9,9de,ffffffff827c6ec9) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd806a2db928) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd806a2db928) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ac830) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: -6 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000211b8e20 rbx 0xffff800020d59b8f rdx 0 rcx 0 rax 0xffff8000211ac830 r8 0x101010101010101 r9 0x8080808080808080 r10 0x640443703f870bb1 r11 0xedefc7a5cc32da41 r12 0xffff800020d59990 r13 0 r14 0xffffffff82c2a990 cpu_info_full_primary+0x2990 r15 0x1 rip 0xffffffff81700cbc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000211b8e10 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (reaper) pid=521367 stat=onproc flags process=14000 proc=200 pri=4, usrpri=69, nice=20 forw=0xffffffffffffffff, list=0xffff8000211acae8,0xffff8000211ac018 process=0xffff8000fffff670 user=0xffff8000211b4000, vmspace=0xffffffff82d776d8 estcpu=19, cpticks=1, pctcpu=9.32 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 71991 192075 19078 32767 2 0x10 syz-executor.3 30659 427286 85793 32767 2 0x10 syz-executor.2 30659 464625 85793 32767 2 0x4000010 syz-executor.2 3481 438351 72907 32767 2 0x10 syz-executor.6 3481 83421 72907 32767 3 0x4000090 fsleep syz-executor.6 17798 387747 44265 32767 2 0x10 syz-executor.7 17798 89739 44265 32767 3 0x4000090 fsleep syz-executor.7 17798 169320 44265 32767 3 0x4000090 fsleep syz-executor.7 17798 479878 44265 32767 3 0x4000090 fsleep syz-executor.7 17687 456664 21522 32767 2 0x10 syz-executor.0 21522 474952 88307 0 3 0x82 wait syz-executor.0 44265 336463 78943 32767 3 0x90 nanoslp syz-executor.7 78943 295188 88307 0 3 0x82 wait syz-executor.7 23516 74273 84521 32767 3 0x90 nanoslp syz-executor.4 84521 136253 88307 0 3 0x82 wait syz-executor.4 79826 435646 66606 32767 7 0x10 syz-executor.5 66606 521625 88307 0 3 0x82 wait syz-executor.5 72907 234255 22602 32767 3 0x90 nanoslp syz-executor.6 22602 518360 88307 0 3 0x82 wait syz-executor.6 36815 72200 848 32767 3 0x10 biowait syz-executor.1 848 18359 88307 0 3 0x82 wait syz-executor.1 19078 277409 92497 32767 3 0x90 nanoslp syz-executor.3 92497 312744 88307 0 3 0x82 wait syz-executor.3 85793 4125 23327 32767 3 0x90 nanoslp syz-executor.2 23327 295547 88307 0 3 0x82 wait syz-executor.2 18319 338037 0 0 3 0x14200 bored sosplice 88307 208464 73455 0 3 0x82 wait syz-fuzzer 88307 71054 73455 0 3 0x4000082 nanoslp syz-fuzzer 88307 196226 73455 0 3 0x4000082 wait syz-fuzzer 88307 227697 73455 0 3 0x4000082 wait syz-fuzzer 88307 319043 73455 0 3 0x4000082 thrsleep syz-fuzzer 88307 25545 73455 0 3 0x4000082 thrsleep syz-fuzzer 88307 288380 73455 0 3 0x4000082 thrsleep syz-fuzzer 88307 18970 73455 0 3 0x4000082 kqread syz-fuzzer 88307 24797 73455 0 3 0x4000082 thrsleep syz-fuzzer 88307 37108 73455 0 3 0x4000082 wait syz-fuzzer 88307 238882 73455 0 3 0x4000082 thrsleep syz-fuzzer 88307 260264 73455 0 3 0x4000082 wait syz-fuzzer 88307 4531 73455 0 3 0x4000082 wait syz-fuzzer 88307 189886 73455 0 3 0x4000082 thrsleep syz-fuzzer 88307 432064 73455 0 3 0x4000082 wait syz-fuzzer 88307 338364 73455 0 3 0x4000082 wait syz-fuzzer 73455 203545 12836 0 3 0x10008a sigsusp ksh 12836 496101 78522 0 3 0x9a kqread sshd 23936 402231 1 0 3 0x100083 ttyin getty 78522 47687 1 0 3 0x88 kqread sshd 14992 200541 57335 73 3 0x1100090 kqread syslogd 57335 414935 1 0 3 0x100082 netio syslogd 97657 181707 1 0 3 0x100080 kqread resolvd 84866 66811 2084 77 3 0x100092 kqread dhcpleased 42078 34553 2084 77 3 0x100092 kqread dhcpleased 2084 304164 1 0 3 0x80 kqread dhcpleased 11637 487178 0 0 3 0x14200 bored smr 23101 191115 0 0 2 0x14200 zerothread 35517 300508 0 0 3 0x14200 aiodoned aiodoned 71145 121842 0 0 3 0x14200 syncer update 13917 437134 0 0 3 0x14200 cleaner cleaner *81253 521367 0 0 7 0x14200 reaper 42544 33688 0 0 3 0x14200 pgdaemon pagedaemon 23154 90491 0 0 3 0x14200 bored viomb 28001 312458 0 0 3 0x40014200 acpi0 acpi0 34433 71516 0 0 3 0x40014200 idle1 3520 85047 0 0 3 0x14200 bored softnet3 62887 369500 0 0 3 0x14200 bored softnet2 60364 459896 0 0 3 0x14200 bored softnet1 62474 244454 0 0 3 0x14200 bored softnet0 59135 217760 0 0 3 0x14200 bored systqmp 13871 417080 0 0 3 0x14200 bored systq 77532 388635 0 0 3 0x40014200 bored softclock 97218 41219 0 0 3 0x40014200 idle0 1 487010 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 1 (0xffffffff82c57628) #0 witness_lock+0x44d #1 wakeup_n+0x3b #2 sched_idle+0x242 sys/kern/kern_sched.c:163 #3 proc_trampoline+0x1c Process 79826 (syz-executor.5) thread 0xffff8000211d8310 (435646) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c4f978) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3c3 sys/kern/sched_bsd.c:405 #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 (0xfffffd806e4f95f0) #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 (0xfffffd80672210a8) #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 Process 36815 (syz-executor.1) thread 0xffff80002121f8a0 (72200) exclusive rrwlock inode r = 0 (0xfffffd806e4f52c8) #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 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #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:3074 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807d1e30a0) #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 10208 6412K 6419K 78643K 11432 0 pcb 13 12K 14K 78643K 17 0 rtable 252 7K 7K 78643K 3176 0 ifaddr 73 24K 25K 78643K 343 0 sysctl 3 1K 1K 78643K 3 0 counters 60 35K 35K 78643K 148 0 ioctlops 0 0K 2K 78643K 274 0 iov 0 0K 32K 78643K 5895 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 6025 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 383 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 10676 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 22 81K 121K 78643K 25349 0 sigio 0 0K 0K 78643K 364 0 proc 56 78K 103K 78643K 3032 0 subproc 104 6K 6K 78643K 676 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1931 0 in_multi 99 6K 7K 78643K 828 0 ether_multi 1 0K 0K 78643K 82 0 mrt 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 241 1076K 1076K 78643K 241 0 exec 0 0K 1K 78643K 3384 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 532 101K 992K 78643K 250629 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 919 0 NDP 11 0K 2K 78643K 159 0 temp 124 5866K 5994K 78643K 65588 0 kqueue 12 18K 26K 78643K 2077 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 2666 0 2663 35 34 1 3 0 8 0 rtentry 112 632 0 513 4 0 4 4 0 8 0 unpcb 144 21057 0 21044 170 164 6 8 0 8 5 syncache 296 248 0 248 45 45 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 386 0 386 32 32 0 2 0 8 0 tcpcb 776 8788 0 8781 226 225 1 14 0 8 0 arp 120 111 0 93 1 0 1 1 0 8 0 ipq 40 115 0 115 12 12 0 1 0 8 0 ipqe 40 518 0 518 12 12 0 1 0 8 0 inpcb 368 43662 0 43652 399 391 8 17 0 8 6 ip6q 72 8 0 8 3 3 0 1 0 8 0 ip6af 40 14 0 14 3 3 0 1 0 8 0 nd6 136 188 0 155 3 1 2 2 0 8 0 kcovpl 48 52 0 44 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2518 0 2025 34 3 31 31 0 8 0 art_table 32 2519 0 2025 4 0 4 4 0 8 0 art_node 16 631 0 522 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 14 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 10670 0 10660 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 34158 0 32695 92 0 92 92 0 8 0 ffsino 272 34158 0 32695 98 0 98 98 0 8 0 nchpl 144 66963 0 65321 63 0 63 63 0 8 0 uvmvnodes 80 6377 0 0 131 0 131 131 0 8 0 vnodes 216 6377 0 0 355 0 355 355 0 8 0 namei 1024 233399 0 233397 9 8 1 2 0 8 0 percpumem 16 87 0 44 1 0 1 1 0 8 0 kstatmem 264 110 0 88 2 0 2 2 0 8 0 scxspl 216 224468 0 224467 86 85 1 8 0 8 0 plimitpl 152 6564 0 6541 49 47 2 2 0 8 1 sigapl 424 25544 0 25492 7 0 7 7 0 8 0 futexpl 64 248378 0 248374 12 11 1 1 0 8 0 knotepl 120 1479 0 0 19 1 18 18 0 8 0 kqueuepl 216 6004 0 5996 119 118 1 10 0 8 0 pipepl 320 6172 0 6144 134 131 3 9 0 8 0 fdescpl 496 25526 0 25493 6 1 5 6 0 8 0 filepl 152 193089 0 192854 283 267 16 21 0 8 6 lockfpl 104 3641 0 3638 3 2 1 2 0 8 0 lockfspl 48 846 0 843 1 0 1 1 0 8 0 sessionpl 144 67 0 51 1 0 1 1 0 8 0 pgrppl 48 2250 0 2234 1 0 1 1 0 8 0 ucredpl 104 35292 0 35274 1 0 1 1 0 8 0 zombiepl 144 25493 0 25492 1 0 1 1 0 8 0 processpl 1072 25544 0 25492 5 1 4 5 0 8 0 procpl 696 70967 0 70895 28 20 8 9 0 8 0 sosppl 168 355 0 355 36 36 0 1 0 8 0 sockpl 488 68260 0 68234 1106 1093 13 37 0 8 8 mcl64k 65536 33 0 0 3 0 3 3 0 8 0 mcl16k 16384 49 0 0 5 2 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 97 0 0 9 6 3 8 0 8 0 mcl4k 4096 49 0 0 3 0 3 3 0 8 0 mcl2k2 2112 11 0 0 1 0 1 1 0 8 0 mcl2k 2048 715 0 0 63 51 12 63 0 8 0 mtagpl 96 20 0 0 1 0 1 1 0 8 0 mbufpl 256 7682 0 0 415 0 415 415 0 8 0 bufpl 288 48428 0 42048 456 0 456 456 0 8 0 anonpl 24 2506796 0 2493475 343 233 110 118 0 186 4 amapchunkpl 152 1955058 0 1954108 13263 13215 48 4431 0 158 7 amappl16 200 48133 0 47806 260 239 21 32 0 8 0 amappl15 192 15 0 15 2 2 0 1 0 8 0 amappl14 184 293 0 281 2 1 1 2 0 8 0 amappl13 176 33 0 32 8 7 1 1 0 8 0 amappl12 168 26821 0 26784 2 0 2 2 0 8 0 amappl11 160 56 0 45 1 0 1 1 0 8 0 amappl10 152 73 0 61 1 0 1 1 0 8 0 amappl9 144 361 0 361 42 42 0 2 0 8 0 amappl8 136 1410 0 1153 9 0 9 9 0 8 0 amappl7 128 202 0 184 1 0 1 1 0 8 0 amappl6 120 823 0 797 2 1 1 2 0 8 0 amappl5 112 797 0 789 1 0 1 1 0 8 0 amappl4 104 1788 0 1748 2 0 2 2 0 8 0 amappl3 96 154555 0 154460 17 13 4 4 0 8 1 amappl2 88 26999 0 26922 4 2 2 3 0 8 0 amappl1 80 99474 0 98946 22 10 12 22 0 8 0 amappl 88 248822 0 248541 8 0 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 25526 0 25492 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 25526 0 25492 1 0 1 1 0 8 0 vmmpekpl 168 201449 0 201392 4 0 4 4 0 8 0 vmmpepl 168 1491395 0 1488762 411 283 128 145 0 357 0 vmsppl 464 25525 0 25492 6 1 5 6 0 8 0 rwobjpl 56 362494 0 354431 133 16 117 118 0 8 0 pdppl 4096 51060 0 50984 807 725 82 94 0 8 6 pvpl 32 7580784 0 7561047 857 628 229 346 0 265 45 pmappl 248 25525 0 25492 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2400 0 1188 35 0 35 35 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c29ff0) 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(ffffffff82c4f770) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c4f770) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800027b56d20,ffff80000006ba00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(70) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828164ab) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff82784648) at panic+0xdb sys/kern/subr_prf.c:216 vop_generic_badop(ffff800027b57148) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8065c07d08,fffffd80663e8800) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 end trace frame: 0xffff800027b571f0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82c29ff0) 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(ffffffff82c4f770) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c4f770) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800027b56d20,ffff80000006ba00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(70) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828164ab) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff82784648) at panic+0xdb sys/kern/subr_prf.c:216 vop_generic_badop(ffff800027b57148) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8065c07d08,fffffd80663e8800) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd80663e8800) at bwrite+0x1f4 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd80663e8800) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800027b573e0) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd80677ad620,ffff800027b57540,ffff800027b57570,ffff800027b57470) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff8000211d8310,ffffff9c,7f4bbbcb24d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 syscall(ffff800027b576f0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800027b576f0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f4bbbcb2540, count: -21 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(ffffffff82794322) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8280f865,ffffffff8283d9b9,9de,ffffffff827c6ec9) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd806a2db928) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd806a2db928) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ac830) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: 9 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82794322) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8280f865,ffffffff8283d9b9,9de,ffffffff827c6ec9) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd806a2db928) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd806a2db928) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ac830) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: -6